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3185942a | 1 | /* A Bison parser, made by GNU Bison 2.3. */ |
b80f6443 | 2 | |
3185942a | 3 | /* Skeleton implementation for Bison's Yacc-like parsers in C |
b80f6443 | 4 | |
3185942a JA |
5 | Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006 |
6 | Free Software Foundation, Inc. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2, or (at your option) | |
11 | any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
21 | Boston, MA 02110-1301, USA. */ | |
22 | ||
23 | /* As a special exception, you may create a larger work that contains | |
24 | part or all of the Bison parser skeleton and distribute that work | |
25 | under terms of your choice, so long as that work isn't itself a | |
26 | parser generator using the skeleton or a modified version thereof | |
27 | as a parser skeleton. Alternatively, if you modify or redistribute | |
28 | the parser skeleton itself, you may (at your option) remove this | |
29 | special exception, which will cause the skeleton and the resulting | |
30 | Bison output files to be licensed under the GNU General Public | |
31 | License without this special exception. | |
32 | ||
33 | This special exception was added by the Free Software Foundation in | |
34 | version 2.2 of Bison. */ | |
35 | ||
36 | /* C LALR(1) parser skeleton written by Richard Stallman, by | |
37 | simplifying the original so-called "semantic" parser. */ | |
38 | ||
39 | /* All symbols defined below should begin with yy or YY, to avoid | |
40 | infringing on user name space. This should be done even for local | |
41 | variables, as they might otherwise be expanded by user macros. | |
42 | There are some unavoidable exceptions within include files to | |
43 | define necessary library symbols; they are noted "INFRINGES ON | |
44 | USER NAME SPACE" below. */ | |
45 | ||
46 | /* Identify Bison output. */ | |
47 | #define YYBISON 1 | |
48 | ||
49 | /* Bison version. */ | |
50 | #define YYBISON_VERSION "2.3" | |
51 | ||
52 | /* Skeleton name. */ | |
53 | #define YYSKELETON_NAME "yacc.c" | |
54 | ||
55 | /* Pure parsers. */ | |
56 | #define YYPURE 0 | |
57 | ||
58 | /* Using locations. */ | |
59 | #define YYLSP_NEEDED 0 | |
60 | ||
61 | ||
62 | ||
63 | /* Tokens. */ | |
64 | #ifndef YYTOKENTYPE | |
65 | # define YYTOKENTYPE | |
66 | /* Put the tokens into the symbol table, so that GDB and other debuggers | |
67 | know about them. */ | |
68 | enum yytokentype { | |
69 | IF = 258, | |
70 | THEN = 259, | |
71 | ELSE = 260, | |
72 | ELIF = 261, | |
73 | FI = 262, | |
74 | CASE = 263, | |
75 | ESAC = 264, | |
76 | FOR = 265, | |
77 | SELECT = 266, | |
78 | WHILE = 267, | |
79 | UNTIL = 268, | |
80 | DO = 269, | |
81 | DONE = 270, | |
82 | FUNCTION = 271, | |
83 | COPROC = 272, | |
84 | COND_START = 273, | |
85 | COND_END = 274, | |
86 | COND_ERROR = 275, | |
87 | IN = 276, | |
88 | BANG = 277, | |
89 | TIME = 278, | |
90 | TIMEOPT = 279, | |
91 | WORD = 280, | |
92 | ASSIGNMENT_WORD = 281, | |
93 | NUMBER = 282, | |
94 | ARITH_CMD = 283, | |
95 | ARITH_FOR_EXPRS = 284, | |
96 | COND_CMD = 285, | |
97 | AND_AND = 286, | |
98 | OR_OR = 287, | |
99 | GREATER_GREATER = 288, | |
100 | LESS_LESS = 289, | |
101 | LESS_AND = 290, | |
102 | LESS_LESS_LESS = 291, | |
103 | GREATER_AND = 292, | |
104 | SEMI_SEMI = 293, | |
105 | SEMI_AND = 294, | |
106 | SEMI_SEMI_AND = 295, | |
107 | LESS_LESS_MINUS = 296, | |
108 | AND_GREATER = 297, | |
109 | AND_GREATER_GREATER = 298, | |
110 | LESS_GREATER = 299, | |
111 | GREATER_BAR = 300, | |
112 | BAR_AND = 301, | |
113 | yacc_EOF = 302 | |
114 | }; | |
115 | #endif | |
116 | /* Tokens. */ | |
117 | #define IF 258 | |
118 | #define THEN 259 | |
119 | #define ELSE 260 | |
120 | #define ELIF 261 | |
121 | #define FI 262 | |
122 | #define CASE 263 | |
123 | #define ESAC 264 | |
124 | #define FOR 265 | |
125 | #define SELECT 266 | |
126 | #define WHILE 267 | |
127 | #define UNTIL 268 | |
128 | #define DO 269 | |
129 | #define DONE 270 | |
130 | #define FUNCTION 271 | |
131 | #define COPROC 272 | |
132 | #define COND_START 273 | |
133 | #define COND_END 274 | |
134 | #define COND_ERROR 275 | |
135 | #define IN 276 | |
136 | #define BANG 277 | |
137 | #define TIME 278 | |
138 | #define TIMEOPT 279 | |
139 | #define WORD 280 | |
140 | #define ASSIGNMENT_WORD 281 | |
141 | #define NUMBER 282 | |
142 | #define ARITH_CMD 283 | |
143 | #define ARITH_FOR_EXPRS 284 | |
144 | #define COND_CMD 285 | |
145 | #define AND_AND 286 | |
146 | #define OR_OR 287 | |
147 | #define GREATER_GREATER 288 | |
148 | #define LESS_LESS 289 | |
149 | #define LESS_AND 290 | |
150 | #define LESS_LESS_LESS 291 | |
151 | #define GREATER_AND 292 | |
152 | #define SEMI_SEMI 293 | |
153 | #define SEMI_AND 294 | |
154 | #define SEMI_SEMI_AND 295 | |
155 | #define LESS_LESS_MINUS 296 | |
156 | #define AND_GREATER 297 | |
157 | #define AND_GREATER_GREATER 298 | |
158 | #define LESS_GREATER 299 | |
159 | #define GREATER_BAR 300 | |
160 | #define BAR_AND 301 | |
161 | #define yacc_EOF 302 | |
162 | ||
163 | ||
164 | ||
165 | ||
166 | /* Copy the first part of user declarations. */ | |
0628567a | 167 | #line 21 "/Users/chet/src/bash/src/parse.y" |
f73dda09 | 168 | |
ccc6cda3 JA |
169 | #include "config.h" |
170 | ||
726f6388 | 171 | #include "bashtypes.h" |
726f6388 | 172 | #include "bashansi.h" |
ccc6cda3 | 173 | |
28ef6c31 JA |
174 | #include "filecntl.h" |
175 | ||
ccc6cda3 JA |
176 | #if defined (HAVE_UNISTD_H) |
177 | # include <unistd.h> | |
178 | #endif | |
179 | ||
180 | #if defined (HAVE_LOCALE_H) | |
181 | # include <locale.h> | |
182 | #endif | |
183 | ||
184 | #include <stdio.h> | |
f73dda09 | 185 | #include "chartypes.h" |
ccc6cda3 JA |
186 | #include <signal.h> |
187 | ||
188 | #include "memalloc.h" | |
189 | ||
b80f6443 JA |
190 | #include "bashintl.h" |
191 | ||
7117c2d2 JA |
192 | #define NEED_STRFTIME_DECL /* used in externs.h */ |
193 | ||
726f6388 | 194 | #include "shell.h" |
ccc6cda3 | 195 | #include "trap.h" |
726f6388 | 196 | #include "flags.h" |
ccc6cda3 JA |
197 | #include "parser.h" |
198 | #include "mailcheck.h" | |
f73dda09 | 199 | #include "test.h" |
95732b49 | 200 | #include "builtins.h" |
ccc6cda3 JA |
201 | #include "builtins/common.h" |
202 | #include "builtins/builtext.h" | |
726f6388 | 203 | |
7117c2d2 JA |
204 | #include "shmbutil.h" |
205 | ||
726f6388 | 206 | #if defined (READLINE) |
ccc6cda3 | 207 | # include "bashline.h" |
726f6388 JA |
208 | # include <readline/readline.h> |
209 | #endif /* READLINE */ | |
210 | ||
211 | #if defined (HISTORY) | |
212 | # include "bashhist.h" | |
213 | # include <readline/history.h> | |
214 | #endif /* HISTORY */ | |
215 | ||
216 | #if defined (JOB_CONTROL) | |
217 | # include "jobs.h" | |
218 | #endif /* JOB_CONTROL */ | |
219 | ||
220 | #if defined (ALIAS) | |
221 | # include "alias.h" | |
b80f6443 JA |
222 | #else |
223 | typedef void *alias_t; | |
726f6388 JA |
224 | #endif /* ALIAS */ |
225 | ||
226 | #if defined (PROMPT_STRING_DECODE) | |
cce855bc JA |
227 | # ifndef _MINIX |
228 | # include <sys/param.h> | |
229 | # endif | |
230 | # include <time.h> | |
7117c2d2 JA |
231 | # if defined (TM_IN_SYS_TIME) |
232 | # include <sys/types.h> | |
233 | # include <sys/time.h> | |
234 | # endif /* TM_IN_SYS_TIME */ | |
cce855bc | 235 | # include "maxpath.h" |
726f6388 JA |
236 | #endif /* PROMPT_STRING_DECODE */ |
237 | ||
ccc6cda3 JA |
238 | #define RE_READ_TOKEN -99 |
239 | #define NO_EXPANSION -100 | |
240 | ||
7117c2d2 JA |
241 | #ifdef DEBUG |
242 | # define YYDEBUG 1 | |
243 | #else | |
244 | # define YYDEBUG 0 | |
245 | #endif | |
246 | ||
247 | #if defined (HANDLE_MULTIBYTE) | |
248 | # define last_shell_getc_is_singlebyte \ | |
249 | ((shell_input_line_index > 1) \ | |
250 | ? shell_input_line_property[shell_input_line_index - 1] \ | |
251 | : 1) | |
252 | # define MBTEST(x) ((x) && last_shell_getc_is_singlebyte) | |
253 | #else | |
254 | # define last_shell_getc_is_singlebyte 1 | |
255 | # define MBTEST(x) ((x)) | |
256 | #endif | |
ccc6cda3 | 257 | |
cce855bc | 258 | #if defined (EXTENDED_GLOB) |
cce855bc JA |
259 | extern int extended_glob; |
260 | #endif | |
261 | ||
726f6388 | 262 | extern int eof_encountered; |
ccc6cda3 | 263 | extern int no_line_editing, running_under_emacs; |
726f6388 | 264 | extern int current_command_number; |
3185942a | 265 | extern int sourcelevel, parse_and_execute_level; |
726f6388 JA |
266 | extern int posixly_correct; |
267 | extern int last_command_exit_value; | |
726f6388 | 268 | extern char *shell_name, *current_host_name; |
ccc6cda3 JA |
269 | extern char *dist_version; |
270 | extern int patch_level; | |
cce855bc | 271 | extern int dump_translatable_strings, dump_po_strings; |
f73dda09 | 272 | extern sh_builtin_func_t *last_shell_builtin, *this_shell_builtin; |
726f6388 JA |
273 | #if defined (BUFFERED_INPUT) |
274 | extern int bash_input_fd_changed; | |
275 | #endif | |
276 | ||
bb70624e | 277 | extern int errno; |
726f6388 JA |
278 | /* **************************************************************** */ |
279 | /* */ | |
280 | /* "Forward" declarations */ | |
281 | /* */ | |
282 | /* **************************************************************** */ | |
283 | ||
f73dda09 JA |
284 | #ifdef DEBUG |
285 | static void debug_parser __P((int)); | |
286 | #endif | |
287 | ||
288 | static int yy_getc __P((void)); | |
289 | static int yy_ungetc __P((int)); | |
290 | ||
291 | #if defined (READLINE) | |
292 | static int yy_readline_get __P((void)); | |
293 | static int yy_readline_unget __P((int)); | |
294 | #endif | |
295 | ||
296 | static int yy_string_get __P((void)); | |
297 | static int yy_string_unget __P((int)); | |
3185942a | 298 | static void rewind_input_string __P((void)); |
f73dda09 JA |
299 | static int yy_stream_get __P((void)); |
300 | static int yy_stream_unget __P((int)); | |
301 | ||
302 | static int shell_getc __P((int)); | |
303 | static void shell_ungetc __P((int)); | |
304 | static void discard_until __P((int)); | |
305 | ||
306 | #if defined (ALIAS) || defined (DPAREN_ARITHMETIC) | |
307 | static void push_string __P((char *, int, alias_t *)); | |
308 | static void pop_string __P((void)); | |
309 | static void free_string_list __P((void)); | |
310 | #endif | |
311 | ||
312 | static char *read_a_line __P((int)); | |
313 | ||
f73dda09 JA |
314 | static int reserved_word_acceptable __P((int)); |
315 | static int yylex __P((void)); | |
316 | static int alias_expand_token __P((char *)); | |
317 | static int time_command_acceptable __P((void)); | |
318 | static int special_case_tokens __P((char *)); | |
319 | static int read_token __P((int)); | |
320 | static char *parse_matched_pair __P((int, int, int, int *, int)); | |
3185942a | 321 | static char *parse_comsub __P((int, int, int, int *, int)); |
7117c2d2 JA |
322 | #if defined (ARRAY_VARS) |
323 | static char *parse_compound_assignment __P((int *)); | |
324 | #endif | |
f73dda09 | 325 | #if defined (DPAREN_ARITHMETIC) || defined (ARITH_FOR_COMMAND) |
7117c2d2 | 326 | static int parse_dparen __P((int)); |
b80f6443 | 327 | static int parse_arith_cmd __P((char **, int)); |
f73dda09 | 328 | #endif |
cce855bc | 329 | #if defined (COND_COMMAND) |
7117c2d2 | 330 | static void cond_error __P((void)); |
f73dda09 JA |
331 | static COND_COM *cond_expr __P((void)); |
332 | static COND_COM *cond_or __P((void)); | |
333 | static COND_COM *cond_and __P((void)); | |
334 | static COND_COM *cond_term __P((void)); | |
335 | static int cond_skip_newlines __P((void)); | |
336 | static COMMAND *parse_cond_command __P((void)); | |
cce855bc | 337 | #endif |
7117c2d2 JA |
338 | #if defined (ARRAY_VARS) |
339 | static int token_is_assignment __P((char *, int)); | |
340 | static int token_is_ident __P((char *, int)); | |
341 | #endif | |
f73dda09 JA |
342 | static int read_token_word __P((int)); |
343 | static void discard_parser_constructs __P((int)); | |
726f6388 | 344 | |
7117c2d2 JA |
345 | static char *error_token_from_token __P((int)); |
346 | static char *error_token_from_text __P((void)); | |
347 | static void print_offending_line __P((void)); | |
f73dda09 | 348 | static void report_syntax_error __P((char *)); |
7117c2d2 | 349 | |
f73dda09 JA |
350 | static void handle_eof_input_unit __P((void)); |
351 | static void prompt_again __P((void)); | |
d166f048 | 352 | #if 0 |
f73dda09 | 353 | static void reset_readline_prompt __P((void)); |
d166f048 | 354 | #endif |
f73dda09 | 355 | static void print_prompt __P((void)); |
726f6388 | 356 | |
7117c2d2 JA |
357 | #if defined (HANDLE_MULTIBYTE) |
358 | static void set_line_mbstate __P((void)); | |
359 | static char *shell_input_line_property = NULL; | |
360 | #else | |
361 | # define set_line_mbstate() | |
362 | #endif | |
363 | ||
f73dda09 | 364 | extern int yyerror __P((const char *)); |
d166f048 | 365 | |
7117c2d2 JA |
366 | #ifdef DEBUG |
367 | extern int yydebug; | |
368 | #endif | |
369 | ||
ccc6cda3 JA |
370 | /* Default prompt strings */ |
371 | char *primary_prompt = PPROMPT; | |
372 | char *secondary_prompt = SPROMPT; | |
373 | ||
726f6388 JA |
374 | /* PROMPT_STRING_POINTER points to one of these, never to an actual string. */ |
375 | char *ps1_prompt, *ps2_prompt; | |
376 | ||
377 | /* Handle on the current prompt string. Indirectly points through | |
378 | ps1_ or ps2_prompt. */ | |
379 | char **prompt_string_pointer = (char **)NULL; | |
380 | char *current_prompt_string; | |
381 | ||
ccc6cda3 JA |
382 | /* Non-zero means we expand aliases in commands. */ |
383 | int expand_aliases = 0; | |
384 | ||
385 | /* If non-zero, the decoded prompt string undergoes parameter and | |
386 | variable substitution, command substitution, arithmetic substitution, | |
387 | string expansion, process substitution, and quote removal in | |
388 | decode_prompt_string. */ | |
389 | int promptvars = 1; | |
390 | ||
b80f6443 JA |
391 | /* If non-zero, $'...' and $"..." are expanded when they appear within |
392 | a ${...} expansion, even when the expansion appears within double | |
393 | quotes. */ | |
394 | int extended_quote = 1; | |
395 | ||
726f6388 JA |
396 | /* The decoded prompt string. Used if READLINE is not defined or if |
397 | editing is turned off. Analogous to current_readline_prompt. */ | |
398 | static char *current_decoded_prompt; | |
399 | ||
400 | /* The number of lines read from input while creating the current command. */ | |
ccc6cda3 | 401 | int current_command_line_count; |
726f6388 | 402 | |
3185942a JA |
403 | /* The token that currently denotes the end of parse. */ |
404 | int shell_eof_token; | |
405 | ||
406 | /* The token currently being read. */ | |
407 | int current_token; | |
408 | ||
726f6388 JA |
409 | /* Variables to manage the task of reading here documents, because we need to |
410 | defer the reading until after a complete command has been collected. */ | |
411 | static REDIRECT *redir_stack[10]; | |
ccc6cda3 | 412 | int need_here_doc; |
726f6388 JA |
413 | |
414 | /* Where shell input comes from. History expansion is performed on each | |
415 | line when the shell is interactive. */ | |
416 | static char *shell_input_line = (char *)NULL; | |
ccc6cda3 JA |
417 | static int shell_input_line_index; |
418 | static int shell_input_line_size; /* Amount allocated for shell_input_line. */ | |
419 | static int shell_input_line_len; /* strlen (shell_input_line) */ | |
726f6388 JA |
420 | |
421 | /* Either zero or EOF. */ | |
ccc6cda3 JA |
422 | static int shell_input_line_terminator; |
423 | ||
424 | /* The line number in a script on which a function definition starts. */ | |
425 | static int function_dstart; | |
426 | ||
427 | /* The line number in a script on which a function body starts. */ | |
428 | static int function_bstart; | |
726f6388 | 429 | |
bb70624e JA |
430 | /* The line number in a script at which an arithmetic for command starts. */ |
431 | static int arith_for_lineno; | |
432 | ||
3185942a JA |
433 | /* The current parser state. */ |
434 | static int parser_state; | |
435 | ||
436 | /* The last read token, or NULL. read_token () uses this for context | |
437 | checking. */ | |
438 | static int last_read_token; | |
439 | ||
440 | /* The token read prior to last_read_token. */ | |
441 | static int token_before_that; | |
442 | ||
443 | /* The token read prior to token_before_that. */ | |
444 | static int two_tokens_ago; | |
445 | ||
b80f6443 JA |
446 | /* The line number in a script where the word in a `case WORD', `select WORD' |
447 | or `for WORD' begins. This is a nested command maximum, since the array | |
448 | index is decremented after a case, select, or for command is parsed. */ | |
449 | #define MAX_CASE_NEST 128 | |
450 | static int word_lineno[MAX_CASE_NEST]; | |
451 | static int word_top = -1; | |
452 | ||
453 | /* If non-zero, it is the token that we want read_token to return | |
454 | regardless of what text is (or isn't) present to be read. This | |
455 | is reset by read_token. If token_to_read == WORD or | |
456 | ASSIGNMENT_WORD, yylval.word should be set to word_desc_to_read. */ | |
457 | static int token_to_read; | |
458 | static WORD_DESC *word_desc_to_read; | |
459 | ||
726f6388 | 460 | static REDIRECTEE redir; |
f73dda09 | 461 | |
3185942a JA |
462 | |
463 | /* Enabling traces. */ | |
464 | #ifndef YYDEBUG | |
465 | # define YYDEBUG 0 | |
466 | #endif | |
467 | ||
468 | /* Enabling verbose error messages. */ | |
469 | #ifdef YYERROR_VERBOSE | |
470 | # undef YYERROR_VERBOSE | |
471 | # define YYERROR_VERBOSE 1 | |
472 | #else | |
473 | # define YYERROR_VERBOSE 0 | |
474 | #endif | |
475 | ||
476 | /* Enabling the token table. */ | |
477 | #ifndef YYTOKEN_TABLE | |
478 | # define YYTOKEN_TABLE 0 | |
479 | #endif | |
480 | ||
481 | #if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED | |
482 | typedef union YYSTYPE | |
483 | #line 316 "/Users/chet/src/bash/src/parse.y" | |
484 | { | |
726f6388 JA |
485 | WORD_DESC *word; /* the word that we read. */ |
486 | int number; /* the number that we read. */ | |
487 | WORD_LIST *word_list; | |
488 | COMMAND *command; | |
489 | REDIRECT *redirect; | |
490 | ELEMENT element; | |
491 | PATTERN_LIST *pattern; | |
3185942a JA |
492 | } |
493 | /* Line 187 of yacc.c. */ | |
494 | #line 495 "y.tab.c" | |
495 | YYSTYPE; | |
496 | # define yystype YYSTYPE /* obsolescent; will be withdrawn */ | |
497 | # define YYSTYPE_IS_DECLARED 1 | |
498 | # define YYSTYPE_IS_TRIVIAL 1 | |
499 | #endif | |
500 | ||
501 | ||
502 | ||
503 | /* Copy the second part of user declarations. */ | |
504 | ||
505 | ||
506 | /* Line 216 of yacc.c. */ | |
507 | #line 508 "y.tab.c" | |
b80f6443 | 508 | |
3185942a JA |
509 | #ifdef short |
510 | # undef short | |
f73dda09 | 511 | #endif |
3185942a JA |
512 | |
513 | #ifdef YYTYPE_UINT8 | |
514 | typedef YYTYPE_UINT8 yytype_uint8; | |
515 | #else | |
516 | typedef unsigned char yytype_uint8; | |
f73dda09 JA |
517 | #endif |
518 | ||
3185942a JA |
519 | #ifdef YYTYPE_INT8 |
520 | typedef YYTYPE_INT8 yytype_int8; | |
521 | #elif (defined __STDC__ || defined __C99__FUNC__ \ | |
522 | || defined __cplusplus || defined _MSC_VER) | |
523 | typedef signed char yytype_int8; | |
524 | #else | |
525 | typedef short int yytype_int8; | |
526 | #endif | |
f73dda09 | 527 | |
3185942a JA |
528 | #ifdef YYTYPE_UINT16 |
529 | typedef YYTYPE_UINT16 yytype_uint16; | |
530 | #else | |
531 | typedef unsigned short int yytype_uint16; | |
532 | #endif | |
f73dda09 | 533 | |
3185942a JA |
534 | #ifdef YYTYPE_INT16 |
535 | typedef YYTYPE_INT16 yytype_int16; | |
536 | #else | |
537 | typedef short int yytype_int16; | |
538 | #endif | |
f73dda09 | 539 | |
3185942a JA |
540 | #ifndef YYSIZE_T |
541 | # ifdef __SIZE_TYPE__ | |
542 | # define YYSIZE_T __SIZE_TYPE__ | |
543 | # elif defined size_t | |
544 | # define YYSIZE_T size_t | |
545 | # elif ! defined YYSIZE_T && (defined __STDC__ || defined __C99__FUNC__ \ | |
546 | || defined __cplusplus || defined _MSC_VER) | |
547 | # include <stddef.h> /* INFRINGES ON USER NAME SPACE */ | |
548 | # define YYSIZE_T size_t | |
549 | # else | |
550 | # define YYSIZE_T unsigned int | |
551 | # endif | |
552 | #endif | |
b80f6443 | 553 | |
3185942a | 554 | #define YYSIZE_MAXIMUM ((YYSIZE_T) -1) |
f73dda09 | 555 | |
3185942a JA |
556 | #ifndef YY_ |
557 | # if YYENABLE_NLS | |
558 | # if ENABLE_NLS | |
559 | # include <libintl.h> /* INFRINGES ON USER NAME SPACE */ | |
560 | # define YY_(msgid) dgettext ("bison-runtime", msgid) | |
561 | # endif | |
562 | # endif | |
563 | # ifndef YY_ | |
564 | # define YY_(msgid) msgid | |
565 | # endif | |
f73dda09 JA |
566 | #endif |
567 | ||
3185942a JA |
568 | /* Suppress unused-variable warnings by "using" E. */ |
569 | #if ! defined lint || defined __GNUC__ | |
570 | # define YYUSE(e) ((void) (e)) | |
571 | #else | |
572 | # define YYUSE(e) /* empty */ | |
f73dda09 JA |
573 | #endif |
574 | ||
3185942a JA |
575 | /* Identity function, used to suppress warnings about constant conditions. */ |
576 | #ifndef lint | |
577 | # define YYID(n) (n) | |
578 | #else | |
579 | #if (defined __STDC__ || defined __C99__FUNC__ \ | |
580 | || defined __cplusplus || defined _MSC_VER) | |
581 | static int | |
582 | YYID (int i) | |
583 | #else | |
584 | static int | |
585 | YYID (i) | |
586 | int i; | |
587 | #endif | |
588 | { | |
589 | return i; | |
590 | } | |
591 | #endif | |
592 | ||
593 | #if ! defined yyoverflow || YYERROR_VERBOSE | |
594 | ||
595 | /* The parser invokes alloca or malloc; define the necessary symbols. */ | |
596 | ||
597 | # ifdef YYSTACK_USE_ALLOCA | |
598 | # if YYSTACK_USE_ALLOCA | |
599 | # ifdef __GNUC__ | |
600 | # define YYSTACK_ALLOC __builtin_alloca | |
601 | # elif defined __BUILTIN_VA_ARG_INCR | |
602 | # include <alloca.h> /* INFRINGES ON USER NAME SPACE */ | |
603 | # elif defined _AIX | |
604 | # define YYSTACK_ALLOC __alloca | |
605 | # elif defined _MSC_VER | |
606 | # include <malloc.h> /* INFRINGES ON USER NAME SPACE */ | |
607 | # define alloca _alloca | |
608 | # else | |
609 | # define YYSTACK_ALLOC alloca | |
610 | # if ! defined _ALLOCA_H && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \ | |
611 | || defined __cplusplus || defined _MSC_VER) | |
612 | # include <stdlib.h> /* INFRINGES ON USER NAME SPACE */ | |
613 | # ifndef _STDLIB_H | |
614 | # define _STDLIB_H 1 | |
615 | # endif | |
616 | # endif | |
617 | # endif | |
618 | # endif | |
619 | # endif | |
620 | ||
621 | # ifdef YYSTACK_ALLOC | |
622 | /* Pacify GCC's `empty if-body' warning. */ | |
623 | # define YYSTACK_FREE(Ptr) do { /* empty */; } while (YYID (0)) | |
624 | # ifndef YYSTACK_ALLOC_MAXIMUM | |
625 | /* The OS might guarantee only one guard page at the bottom of the stack, | |
626 | and a page size can be as small as 4096 bytes. So we cannot safely | |
627 | invoke alloca (N) if N exceeds 4096. Use a slightly smaller number | |
628 | to allow for a few compiler-allocated temporary stack slots. */ | |
629 | # define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */ | |
630 | # endif | |
631 | # else | |
632 | # define YYSTACK_ALLOC YYMALLOC | |
633 | # define YYSTACK_FREE YYFREE | |
634 | # ifndef YYSTACK_ALLOC_MAXIMUM | |
635 | # define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM | |
636 | # endif | |
637 | # if (defined __cplusplus && ! defined _STDLIB_H \ | |
638 | && ! ((defined YYMALLOC || defined malloc) \ | |
639 | && (defined YYFREE || defined free))) | |
640 | # include <stdlib.h> /* INFRINGES ON USER NAME SPACE */ | |
641 | # ifndef _STDLIB_H | |
642 | # define _STDLIB_H 1 | |
643 | # endif | |
644 | # endif | |
645 | # ifndef YYMALLOC | |
646 | # define YYMALLOC malloc | |
647 | # if ! defined malloc && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \ | |
648 | || defined __cplusplus || defined _MSC_VER) | |
649 | void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */ | |
650 | # endif | |
651 | # endif | |
652 | # ifndef YYFREE | |
653 | # define YYFREE free | |
654 | # if ! defined free && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \ | |
655 | || defined __cplusplus || defined _MSC_VER) | |
656 | void free (void *); /* INFRINGES ON USER NAME SPACE */ | |
657 | # endif | |
658 | # endif | |
659 | # endif | |
660 | #endif /* ! defined yyoverflow || YYERROR_VERBOSE */ | |
661 | ||
662 | ||
663 | #if (! defined yyoverflow \ | |
664 | && (! defined __cplusplus \ | |
665 | || (defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL))) | |
666 | ||
667 | /* A type that is properly aligned for any stack member. */ | |
668 | union yyalloc | |
669 | { | |
670 | yytype_int16 yyss; | |
671 | YYSTYPE yyvs; | |
672 | }; | |
673 | ||
674 | /* The size of the maximum gap between one aligned stack and the next. */ | |
675 | # define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1) | |
676 | ||
677 | /* The size of an array large to enough to hold all stacks, each with | |
678 | N elements. */ | |
679 | # define YYSTACK_BYTES(N) \ | |
680 | ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE)) \ | |
681 | + YYSTACK_GAP_MAXIMUM) | |
682 | ||
683 | /* Copy COUNT objects from FROM to TO. The source and destination do | |
684 | not overlap. */ | |
685 | # ifndef YYCOPY | |
686 | # if defined __GNUC__ && 1 < __GNUC__ | |
687 | # define YYCOPY(To, From, Count) \ | |
688 | __builtin_memcpy (To, From, (Count) * sizeof (*(From))) | |
689 | # else | |
690 | # define YYCOPY(To, From, Count) \ | |
691 | do \ | |
692 | { \ | |
693 | YYSIZE_T yyi; \ | |
694 | for (yyi = 0; yyi < (Count); yyi++) \ | |
695 | (To)[yyi] = (From)[yyi]; \ | |
696 | } \ | |
697 | while (YYID (0)) | |
698 | # endif | |
699 | # endif | |
700 | ||
701 | /* Relocate STACK from its old location to the new one. The | |
702 | local variables YYSIZE and YYSTACKSIZE give the old and new number of | |
703 | elements in the stack, and YYPTR gives the new location of the | |
704 | stack. Advance YYPTR to a properly aligned location for the next | |
705 | stack. */ | |
706 | # define YYSTACK_RELOCATE(Stack) \ | |
707 | do \ | |
708 | { \ | |
709 | YYSIZE_T yynewbytes; \ | |
710 | YYCOPY (&yyptr->Stack, Stack, yysize); \ | |
711 | Stack = &yyptr->Stack; \ | |
712 | yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \ | |
713 | yyptr += yynewbytes / sizeof (*yyptr); \ | |
714 | } \ | |
715 | while (YYID (0)) | |
f73dda09 | 716 | |
f73dda09 JA |
717 | #endif |
718 | ||
3185942a JA |
719 | /* YYFINAL -- State number of the termination state. */ |
720 | #define YYFINAL 102 | |
721 | /* YYLAST -- Last index in YYTABLE. */ | |
722 | #define YYLAST 728 | |
723 | ||
724 | /* YYNTOKENS -- Number of terminals. */ | |
725 | #define YYNTOKENS 59 | |
726 | /* YYNNTS -- Number of nonterminals. */ | |
727 | #define YYNNTS 38 | |
728 | /* YYNRULES -- Number of rules. */ | |
729 | #define YYNRULES 153 | |
730 | /* YYNRULES -- Number of states. */ | |
731 | #define YYNSTATES 319 | |
732 | ||
733 | /* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */ | |
734 | #define YYUNDEFTOK 2 | |
735 | #define YYMAXUTOK 302 | |
736 | ||
737 | #define YYTRANSLATE(YYX) \ | |
738 | ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK) | |
739 | ||
740 | /* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX. */ | |
741 | static const yytype_uint8 yytranslate[] = | |
742 | { | |
743 | 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
744 | 49, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
745 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
746 | 2, 2, 2, 2, 2, 2, 2, 2, 47, 2, | |
747 | 57, 58, 2, 2, 2, 54, 2, 2, 2, 2, | |
748 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 48, | |
749 | 53, 2, 52, 2, 2, 2, 2, 2, 2, 2, | |
750 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
751 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
752 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
753 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
754 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
755 | 2, 2, 2, 55, 51, 56, 2, 2, 2, 2, | |
756 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
757 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
758 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
759 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
760 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
761 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
762 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
763 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
764 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
765 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
766 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
767 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | |
768 | 2, 2, 2, 2, 2, 2, 1, 2, 3, 4, | |
769 | 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, | |
770 | 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, | |
771 | 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, | |
772 | 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, | |
773 | 45, 46, 50 | |
726f6388 | 774 | }; |
f73dda09 | 775 | |
3185942a JA |
776 | #if YYDEBUG |
777 | /* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in | |
778 | YYRHS. */ | |
779 | static const yytype_uint16 yyprhs[] = | |
780 | { | |
781 | 0, 0, 3, 6, 8, 11, 13, 15, 18, 21, | |
782 | 24, 28, 32, 35, 39, 42, 46, 49, 53, 56, | |
783 | 60, 63, 67, 70, 74, 77, 81, 84, 88, 91, | |
784 | 95, 98, 102, 105, 108, 112, 115, 118, 122, 124, | |
785 | 126, 128, 130, 133, 135, 138, 140, 142, 145, 147, | |
786 | 149, 151, 153, 159, 165, 167, 169, 171, 173, 175, | |
787 | 177, 179, 186, 193, 201, 209, 220, 231, 241, 251, | |
788 | 259, 267, 273, 279, 286, 293, 301, 309, 320, 331, | |
789 | 338, 346, 353, 359, 366, 371, 373, 376, 380, 383, | |
790 | 387, 391, 396, 399, 405, 413, 420, 424, 426, 430, | |
791 | 435, 442, 448, 450, 453, 458, 463, 469, 475, 478, | |
792 | 482, 485, 489, 492, 496, 498, 502, 505, 507, 510, | |
793 | 514, 518, 522, 527, 532, 537, 542, 547, 549, 551, | |
794 | 553, 555, 557, 559, 560, 563, 565, 568, 571, 576, | |
795 | 581, 585, 589, 591, 593, 596, 599, 603, 607, 610, | |
796 | 615, 620, 622, 624 | |
726f6388 | 797 | }; |
f73dda09 | 798 | |
3185942a JA |
799 | /* YYRHS -- A `-1'-separated list of the rules' RHS. */ |
800 | static const yytype_int8 yyrhs[] = | |
801 | { | |
802 | 60, 0, -1, 92, 89, -1, 49, -1, 1, 49, | |
803 | -1, 50, -1, 25, -1, 61, 25, -1, 52, 25, | |
804 | -1, 53, 25, -1, 27, 52, 25, -1, 27, 53, | |
805 | 25, -1, 33, 25, -1, 27, 33, 25, -1, 34, | |
806 | 25, -1, 27, 34, 25, -1, 36, 25, -1, 27, | |
807 | 36, 25, -1, 35, 27, -1, 27, 35, 27, -1, | |
808 | 37, 27, -1, 27, 37, 27, -1, 35, 25, -1, | |
809 | 27, 35, 25, -1, 37, 25, -1, 27, 37, 25, | |
810 | -1, 41, 25, -1, 27, 41, 25, -1, 37, 54, | |
811 | -1, 27, 37, 54, -1, 35, 54, -1, 27, 35, | |
812 | 54, -1, 42, 25, -1, 43, 25, -1, 27, 44, | |
813 | 25, -1, 44, 25, -1, 45, 25, -1, 27, 45, | |
814 | 25, -1, 25, -1, 26, -1, 62, -1, 62, -1, | |
815 | 64, 62, -1, 63, -1, 65, 63, -1, 65, -1, | |
816 | 67, -1, 67, 64, -1, 72, -1, 75, -1, 68, | |
817 | -1, 71, -1, 12, 86, 14, 86, 15, -1, 13, | |
818 | 86, 14, 86, 15, -1, 70, -1, 76, -1, 74, | |
819 | -1, 77, -1, 78, -1, 79, -1, 69, -1, 10, | |
820 | 25, 91, 14, 86, 15, -1, 10, 25, 91, 55, | |
821 | 86, 56, -1, 10, 25, 48, 91, 14, 86, 15, | |
822 | -1, 10, 25, 48, 91, 55, 86, 56, -1, 10, | |
823 | 25, 91, 21, 61, 90, 91, 14, 86, 15, -1, | |
824 | 10, 25, 91, 21, 61, 90, 91, 55, 86, 56, | |
825 | -1, 10, 25, 91, 21, 90, 91, 14, 86, 15, | |
826 | -1, 10, 25, 91, 21, 90, 91, 55, 86, 56, | |
827 | -1, 10, 29, 90, 91, 14, 86, 15, -1, 10, | |
828 | 29, 90, 91, 55, 86, 56, -1, 10, 29, 14, | |
829 | 86, 15, -1, 10, 29, 55, 86, 56, -1, 11, | |
830 | 25, 91, 14, 85, 15, -1, 11, 25, 91, 55, | |
831 | 85, 56, -1, 11, 25, 48, 91, 14, 85, 15, | |
832 | -1, 11, 25, 48, 91, 55, 85, 56, -1, 11, | |
833 | 25, 91, 21, 61, 90, 91, 14, 85, 15, -1, | |
834 | 11, 25, 91, 21, 61, 90, 91, 55, 85, 56, | |
835 | -1, 8, 25, 91, 21, 91, 9, -1, 8, 25, | |
836 | 91, 21, 83, 91, 9, -1, 8, 25, 91, 21, | |
837 | 81, 9, -1, 25, 57, 58, 91, 73, -1, 16, | |
838 | 25, 57, 58, 91, 73, -1, 16, 25, 91, 73, | |
839 | -1, 67, -1, 67, 64, -1, 57, 86, 58, -1, | |
840 | 17, 67, -1, 17, 67, 64, -1, 17, 25, 67, | |
841 | -1, 17, 25, 67, 64, -1, 17, 65, -1, 3, | |
842 | 86, 4, 86, 7, -1, 3, 86, 4, 86, 5, | |
843 | 86, 7, -1, 3, 86, 4, 86, 80, 7, -1, | |
844 | 55, 86, 56, -1, 28, -1, 18, 30, 19, -1, | |
845 | 6, 86, 4, 86, -1, 6, 86, 4, 86, 5, | |
846 | 86, -1, 6, 86, 4, 86, 80, -1, 82, -1, | |
847 | 83, 82, -1, 91, 84, 58, 86, -1, 91, 84, | |
848 | 58, 91, -1, 91, 57, 84, 58, 86, -1, 91, | |
849 | 57, 84, 58, 91, -1, 82, 38, -1, 83, 82, | |
850 | 38, -1, 82, 39, -1, 83, 82, 39, -1, 82, | |
851 | 40, -1, 83, 82, 40, -1, 25, -1, 84, 51, | |
852 | 25, -1, 91, 87, -1, 85, -1, 91, 88, -1, | |
853 | 88, 49, 91, -1, 88, 47, 91, -1, 88, 48, | |
854 | 91, -1, 88, 31, 91, 88, -1, 88, 32, 91, | |
855 | 88, -1, 88, 47, 91, 88, -1, 88, 48, 91, | |
856 | 88, -1, 88, 49, 91, 88, -1, 94, -1, 49, | |
857 | -1, 50, -1, 49, -1, 48, -1, 50, -1, -1, | |
858 | 91, 49, -1, 93, -1, 93, 47, -1, 93, 48, | |
859 | -1, 93, 31, 91, 93, -1, 93, 32, 91, 93, | |
860 | -1, 93, 47, 93, -1, 93, 48, 93, -1, 94, | |
861 | -1, 95, -1, 22, 95, -1, 96, 95, -1, 96, | |
862 | 22, 95, -1, 22, 96, 95, -1, 96, 90, -1, | |
863 | 95, 51, 91, 95, -1, 95, 46, 91, 95, -1, | |
864 | 66, -1, 23, -1, 23, 24, -1 | |
726f6388 | 865 | }; |
f73dda09 | 866 | |
3185942a JA |
867 | /* YYRLINE[YYN] -- source line where rule number YYN was defined. */ |
868 | static const yytype_uint16 yyrline[] = | |
869 | { | |
870 | 0, 369, 369, 380, 389, 404, 414, 416, 420, 425, | |
871 | 430, 435, 440, 445, 450, 456, 462, 467, 472, 477, | |
872 | 482, 487, 492, 497, 502, 507, 512, 519, 526, 531, | |
873 | 536, 541, 546, 551, 556, 561, 566, 571, 578, 580, | |
874 | 582, 586, 590, 601, 603, 607, 609, 611, 627, 629, | |
875 | 633, 635, 637, 639, 641, 643, 645, 647, 649, 651, | |
876 | 653, 657, 662, 667, 672, 677, 682, 687, 692, 699, | |
877 | 704, 709, 714, 721, 726, 731, 736, 741, 746, 753, | |
878 | 758, 763, 770, 773, 776, 780, 782, 813, 820, 825, | |
879 | 842, 847, 864, 871, 873, 875, 880, 884, 888, 892, | |
880 | 894, 896, 900, 901, 905, 907, 909, 911, 915, 917, | |
881 | 919, 921, 923, 925, 929, 931, 940, 948, 949, 955, | |
882 | 956, 963, 967, 969, 971, 978, 980, 982, 986, 987, | |
883 | 990, 992, 994, 998, 999, 1008, 1021, 1037, 1052, 1054, | |
884 | 1056, 1063, 1066, 1070, 1072, 1078, 1084, 1090, 1096, 1116, | |
885 | 1118, 1140, 1144, 1146 | |
726f6388 | 886 | }; |
3185942a | 887 | #endif |
f73dda09 | 888 | |
3185942a JA |
889 | #if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE |
890 | /* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM. | |
891 | First, the terminals, then, starting at YYNTOKENS, nonterminals. */ | |
892 | static const char *const yytname[] = | |
893 | { | |
894 | "$end", "error", "$undefined", "IF", "THEN", "ELSE", "ELIF", "FI", | |
895 | "CASE", "ESAC", "FOR", "SELECT", "WHILE", "UNTIL", "DO", "DONE", | |
896 | "FUNCTION", "COPROC", "COND_START", "COND_END", "COND_ERROR", "IN", | |
897 | "BANG", "TIME", "TIMEOPT", "WORD", "ASSIGNMENT_WORD", "NUMBER", | |
898 | "ARITH_CMD", "ARITH_FOR_EXPRS", "COND_CMD", "AND_AND", "OR_OR", | |
899 | "GREATER_GREATER", "LESS_LESS", "LESS_AND", "LESS_LESS_LESS", | |
900 | "GREATER_AND", "SEMI_SEMI", "SEMI_AND", "SEMI_SEMI_AND", | |
901 | "LESS_LESS_MINUS", "AND_GREATER", "AND_GREATER_GREATER", "LESS_GREATER", | |
902 | "GREATER_BAR", "BAR_AND", "'&'", "';'", "'\\n'", "yacc_EOF", "'|'", | |
903 | "'>'", "'<'", "'-'", "'{'", "'}'", "'('", "')'", "$accept", "inputunit", | |
904 | "word_list", "redirection", "simple_command_element", "redirection_list", | |
905 | "simple_command", "command", "shell_command", "for_command", | |
906 | "arith_for_command", "select_command", "case_command", "function_def", | |
907 | "function_body", "subshell", "coproc", "if_command", "group_command", | |
908 | "arith_command", "cond_command", "elif_clause", "case_clause", | |
909 | "pattern_list", "case_clause_sequence", "pattern", "list", | |
910 | "compound_list", "list0", "list1", "simple_list_terminator", | |
911 | "list_terminator", "newline_list", "simple_list", "simple_list1", | |
912 | "pipeline_command", "pipeline", "timespec", 0 | |
726f6388 | 913 | }; |
3185942a | 914 | #endif |
f73dda09 | 915 | |
3185942a JA |
916 | # ifdef YYPRINT |
917 | /* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to | |
918 | token YYLEX-NUM. */ | |
919 | static const yytype_uint16 yytoknum[] = | |
920 | { | |
921 | 0, 256, 257, 258, 259, 260, 261, 262, 263, 264, | |
922 | 265, 266, 267, 268, 269, 270, 271, 272, 273, 274, | |
923 | 275, 276, 277, 278, 279, 280, 281, 282, 283, 284, | |
924 | 285, 286, 287, 288, 289, 290, 291, 292, 293, 294, | |
925 | 295, 296, 297, 298, 299, 300, 301, 38, 59, 10, | |
926 | 302, 124, 62, 60, 45, 123, 125, 40, 41 | |
927 | }; | |
928 | # endif | |
929 | ||
930 | /* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */ | |
931 | static const yytype_uint8 yyr1[] = | |
932 | { | |
933 | 0, 59, 60, 60, 60, 60, 61, 61, 62, 62, | |
934 | 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, | |
935 | 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, | |
936 | 62, 62, 62, 62, 62, 62, 62, 62, 63, 63, | |
937 | 63, 64, 64, 65, 65, 66, 66, 66, 66, 66, | |
938 | 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, | |
939 | 67, 68, 68, 68, 68, 68, 68, 68, 68, 69, | |
940 | 69, 69, 69, 70, 70, 70, 70, 70, 70, 71, | |
941 | 71, 71, 72, 72, 72, 73, 73, 74, 75, 75, | |
942 | 75, 75, 75, 76, 76, 76, 77, 78, 79, 80, | |
943 | 80, 80, 81, 81, 82, 82, 82, 82, 83, 83, | |
944 | 83, 83, 83, 83, 84, 84, 85, 86, 86, 87, | |
945 | 87, 87, 88, 88, 88, 88, 88, 88, 89, 89, | |
946 | 90, 90, 90, 91, 91, 92, 92, 92, 93, 93, | |
947 | 93, 93, 93, 94, 94, 94, 94, 94, 94, 95, | |
948 | 95, 95, 96, 96 | |
726f6388 | 949 | }; |
f73dda09 | 950 | |
3185942a JA |
951 | /* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */ |
952 | static const yytype_uint8 yyr2[] = | |
953 | { | |
954 | 0, 2, 2, 1, 2, 1, 1, 2, 2, 2, | |
955 | 3, 3, 2, 3, 2, 3, 2, 3, 2, 3, | |
956 | 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, | |
957 | 2, 3, 2, 2, 3, 2, 2, 3, 1, 1, | |
958 | 1, 1, 2, 1, 2, 1, 1, 2, 1, 1, | |
959 | 1, 1, 5, 5, 1, 1, 1, 1, 1, 1, | |
960 | 1, 6, 6, 7, 7, 10, 10, 9, 9, 7, | |
961 | 7, 5, 5, 6, 6, 7, 7, 10, 10, 6, | |
962 | 7, 6, 5, 6, 4, 1, 2, 3, 2, 3, | |
963 | 3, 4, 2, 5, 7, 6, 3, 1, 3, 4, | |
964 | 6, 5, 1, 2, 4, 4, 5, 5, 2, 3, | |
965 | 2, 3, 2, 3, 1, 3, 2, 1, 2, 3, | |
966 | 3, 3, 4, 4, 4, 4, 4, 1, 1, 1, | |
967 | 1, 1, 1, 0, 2, 1, 2, 2, 4, 4, | |
968 | 3, 3, 1, 1, 2, 2, 3, 3, 2, 4, | |
969 | 4, 1, 1, 2 | |
970 | }; | |
f73dda09 | 971 | |
3185942a JA |
972 | /* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state |
973 | STATE-NUM when YYTABLE doesn't specify something else to do. Zero | |
974 | means the default is an error. */ | |
975 | static const yytype_uint8 yydefact[] = | |
976 | { | |
977 | 0, 0, 133, 0, 0, 0, 133, 133, 0, 0, | |
978 | 0, 0, 152, 38, 39, 0, 97, 0, 0, 0, | |
979 | 0, 0, 0, 0, 0, 0, 0, 3, 5, 0, | |
980 | 0, 133, 133, 0, 40, 43, 45, 151, 46, 50, | |
981 | 60, 54, 51, 48, 56, 49, 55, 57, 58, 59, | |
982 | 0, 135, 142, 143, 0, 4, 117, 0, 0, 133, | |
983 | 133, 0, 133, 0, 0, 133, 38, 92, 88, 0, | |
984 | 144, 0, 153, 0, 0, 0, 0, 0, 0, 0, | |
985 | 0, 0, 0, 0, 12, 14, 22, 18, 30, 16, | |
986 | 24, 20, 28, 26, 32, 33, 35, 36, 8, 9, | |
987 | 0, 0, 1, 38, 44, 41, 47, 128, 129, 2, | |
988 | 133, 133, 136, 137, 133, 133, 0, 131, 130, 132, | |
989 | 148, 145, 133, 134, 116, 118, 127, 0, 133, 0, | |
990 | 133, 133, 133, 133, 0, 133, 133, 0, 0, 90, | |
991 | 89, 98, 147, 133, 13, 15, 23, 19, 31, 17, | |
992 | 25, 21, 29, 27, 34, 37, 10, 11, 96, 87, | |
993 | 42, 0, 0, 140, 141, 0, 0, 146, 0, 133, | |
994 | 133, 133, 133, 133, 133, 0, 133, 0, 133, 0, | |
995 | 0, 0, 0, 133, 0, 133, 0, 0, 133, 85, | |
996 | 84, 91, 0, 138, 139, 0, 0, 150, 149, 133, | |
997 | 133, 93, 0, 0, 0, 120, 121, 119, 0, 102, | |
998 | 133, 0, 133, 133, 0, 6, 0, 133, 0, 71, | |
999 | 72, 133, 133, 133, 133, 0, 0, 0, 0, 52, | |
1000 | 53, 0, 86, 82, 0, 0, 95, 122, 123, 124, | |
1001 | 125, 126, 81, 108, 110, 112, 103, 0, 79, 114, | |
1002 | 0, 0, 0, 0, 61, 7, 133, 0, 62, 0, | |
1003 | 0, 0, 0, 73, 0, 133, 74, 83, 94, 133, | |
1004 | 133, 133, 133, 109, 111, 113, 80, 0, 0, 133, | |
1005 | 63, 64, 0, 133, 133, 69, 70, 75, 76, 0, | |
1006 | 99, 0, 0, 0, 133, 115, 104, 105, 133, 133, | |
1007 | 0, 0, 133, 133, 133, 101, 106, 107, 0, 0, | |
1008 | 67, 68, 0, 0, 100, 65, 66, 77, 78 | |
726f6388 | 1009 | }; |
f73dda09 | 1010 | |
3185942a JA |
1011 | /* YYDEFGOTO[NTERM-NUM]. */ |
1012 | static const yytype_int16 yydefgoto[] = | |
1013 | { | |
1014 | -1, 33, 216, 34, 35, 106, 36, 37, 38, 39, | |
1015 | 40, 41, 42, 43, 190, 44, 45, 46, 47, 48, | |
1016 | 49, 202, 208, 209, 210, 251, 56, 57, 124, 125, | |
1017 | 109, 120, 58, 50, 163, 126, 53, 54 | |
726f6388 | 1018 | }; |
f73dda09 | 1019 | |
3185942a JA |
1020 | /* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing |
1021 | STATE-NUM. */ | |
1022 | #define YYPACT_NINF -188 | |
1023 | static const yytype_int16 yypact[] = | |
1024 | { | |
1025 | 293, -26, -188, 7, 41, 43, -188, -188, 46, 629, | |
1026 | -17, 485, 11, 23, -188, 675, -188, 65, 68, 96, | |
1027 | 77, 119, 92, 124, 127, 140, 143, -188, -188, 149, | |
1028 | 154, -188, -188, 98, -188, -188, 662, -188, 208, -188, | |
1029 | -188, -188, -188, -188, -188, -188, -188, -188, -188, -188, | |
1030 | 24, 12, -188, -36, 341, -188, -188, 177, 389, -188, | |
1031 | 142, 8, 147, 169, 185, 148, 200, 662, 208, 181, | |
1032 | -36, 581, -188, 146, 184, 189, 130, 192, 135, 197, | |
1033 | 198, 202, 207, 209, -188, -188, -188, -188, -188, -188, | |
1034 | -188, -188, -188, -188, -188, -188, -188, -188, -188, -188, | |
1035 | 180, 167, -188, -188, -188, -188, 208, -188, -188, -188, | |
1036 | -188, -188, 437, 437, -188, -188, 581, -188, -188, -188, | |
1037 | -188, -36, -188, -188, -188, 227, -188, -12, -188, 20, | |
1038 | -188, -188, -188, -188, 122, -188, -188, 179, 37, 208, | |
1039 | 208, -188, -36, -188, -188, -188, -188, -188, -188, -188, | |
1040 | -188, -188, -188, -188, -188, -188, -188, -188, -188, -188, | |
1041 | -188, 389, 389, 53, 53, 533, 533, -36, 224, -188, | |
1042 | -188, -188, -188, -188, -188, 40, -188, 171, -188, 233, | |
1043 | 190, 48, 73, -188, 247, -188, 239, 267, -188, 208, | |
1044 | -188, 208, 37, -188, -188, 437, 437, -36, -36, -188, | |
1045 | -188, -188, 276, 389, 389, 389, 389, 389, 275, 226, | |
1046 | -188, 42, -188, -188, 270, -188, 231, -188, 230, -188, | |
1047 | -188, -188, -188, -188, -188, 272, 389, 231, 234, -188, | |
1048 | -188, 37, 208, -188, 282, 287, -188, -188, -188, 76, | |
1049 | 76, 76, -188, -188, -188, -188, 229, 63, -188, -188, | |
1050 | 274, -27, 280, 241, -188, -188, -188, 99, -188, 285, | |
1051 | 246, 292, 252, -188, 227, -188, -188, -188, -188, -188, | |
1052 | -188, -188, -188, -188, -188, -188, -188, -22, 288, -188, | |
1053 | -188, -188, 131, -188, -188, -188, -188, -188, -188, 133, | |
1054 | 129, 389, 389, 389, -188, -188, -188, 389, -188, -188, | |
1055 | 297, 258, -188, -188, -188, -188, -188, 389, 302, 266, | |
1056 | -188, -188, 308, 268, -188, -188, -188, -188, -188 | |
1057 | }; | |
f73dda09 | 1058 | |
3185942a JA |
1059 | /* YYPGOTO[NTERM-NUM]. */ |
1060 | static const yytype_int16 yypgoto[] = | |
1061 | { | |
1062 | -188, -188, 141, -30, -25, -62, 322, -188, -5, -188, | |
1063 | -188, -188, -188, -188, -185, -188, -188, -188, -188, -188, | |
1064 | -188, 49, -188, 123, -188, 82, -171, -6, -188, -187, | |
1065 | -188, -58, -32, -188, 5, 2, 10, 329 | |
1066 | }; | |
f73dda09 | 1067 | |
3185942a JA |
1068 | /* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If |
1069 | positive, shift that token. If negative, reduce the rule which | |
1070 | number is the opposite. If zero, do what YYDEFACT says. | |
1071 | If YYTABLE_NINF, syntax error. */ | |
1072 | #define YYTABLE_NINF -1 | |
1073 | static const yytype_uint16 yytable[] = | |
1074 | { | |
1075 | 63, 64, 52, 132, 68, 51, 140, 233, 105, 174, | |
1076 | 114, 104, 225, 69, 228, 115, 237, 238, 239, 240, | |
1077 | 241, 70, 130, 55, 278, 100, 101, 127, 129, 278, | |
1078 | 134, 279, 59, 138, 176, 72, 294, 123, 105, 264, | |
1079 | 2, 177, 104, 110, 111, 3, 267, 4, 5, 6, | |
1080 | 7, 248, 261, 262, 212, 10, 117, 118, 119, 112, | |
1081 | 113, 139, 221, 131, 121, 16, 60, 249, 62, 123, | |
1082 | 61, 65, 276, 107, 108, 178, 160, 191, 161, 162, | |
1083 | 73, 142, 165, 166, 110, 111, 123, 223, 249, 123, | |
1084 | 84, 123, 31, 85, 32, 213, 175, 123, 102, 250, | |
1085 | 181, 182, 89, 222, 239, 240, 241, 169, 170, 105, | |
1086 | 160, 192, 123, 283, 52, 52, 168, 93, 164, 217, | |
1087 | 250, 86, 123, 87, 179, 180, 167, 232, 224, 186, | |
1088 | 187, 312, 313, 189, 304, 200, 183, 203, 204, 205, | |
1089 | 206, 207, 211, 184, 90, 298, 91, 302, 123, 94, | |
1090 | 88, 226, 95, 226, 284, 146, 231, 147, 256, 105, | |
1091 | 150, 160, 151, 52, 52, 96, 193, 194, 97, 265, | |
1092 | 214, 123, 218, 92, 98, 197, 198, 185, 247, 99, | |
1093 | 123, 122, 123, 135, 148, 257, 299, 189, 303, 152, | |
1094 | 128, 226, 226, 234, 235, 133, 215, 52, 52, 136, | |
1095 | 141, 164, 160, 2, 143, 137, 252, 253, 3, 144, | |
1096 | 4, 5, 6, 7, 145, 259, 260, 149, 10, 117, | |
1097 | 118, 119, 153, 154, 282, 159, 189, 155, 16, 199, | |
1098 | 200, 201, 156, 289, 157, 15, 158, 188, 291, 292, | |
1099 | 293, 17, 18, 19, 20, 21, 220, 297, 219, 22, | |
1100 | 23, 24, 25, 26, 229, 31, 255, 32, 169, 170, | |
1101 | 29, 30, 307, 290, 243, 244, 245, 273, 274, 275, | |
1102 | 226, 226, 215, 296, 171, 172, 173, 300, 301, 117, | |
1103 | 118, 119, 230, 236, 242, 254, 258, 263, 306, 268, | |
1104 | 266, 269, 308, 309, 1, 280, 2, 281, 314, 249, | |
1105 | 285, 3, 286, 4, 5, 6, 7, 287, 288, 8, | |
1106 | 9, 10, 310, 295, 311, 11, 12, 315, 13, 14, | |
1107 | 15, 16, 316, 317, 318, 227, 17, 18, 19, 20, | |
1108 | 21, 67, 277, 246, 22, 23, 24, 25, 26, 305, | |
1109 | 71, 0, 27, 28, 2, 29, 30, 0, 31, 3, | |
1110 | 32, 4, 5, 6, 7, 0, 0, 8, 9, 10, | |
1111 | 0, 0, 0, 116, 0, 0, 13, 14, 15, 16, | |
1112 | 0, 0, 0, 0, 17, 18, 19, 20, 21, 0, | |
1113 | 0, 0, 22, 23, 24, 25, 26, 0, 0, 117, | |
1114 | 118, 119, 2, 29, 30, 0, 31, 3, 32, 4, | |
1115 | 5, 6, 7, 0, 0, 8, 9, 10, 0, 0, | |
1116 | 0, 11, 12, 0, 13, 14, 15, 16, 0, 0, | |
1117 | 0, 0, 17, 18, 19, 20, 21, 0, 0, 0, | |
1118 | 22, 23, 24, 25, 26, 0, 0, 0, 123, 0, | |
1119 | 2, 29, 30, 0, 31, 3, 32, 4, 5, 6, | |
1120 | 7, 0, 0, 8, 9, 10, 0, 0, 0, 11, | |
1121 | 12, 0, 13, 14, 15, 16, 0, 0, 0, 0, | |
1122 | 17, 18, 19, 20, 21, 0, 0, 0, 22, 23, | |
1123 | 24, 25, 26, 0, 0, 0, 0, 0, 2, 29, | |
1124 | 30, 0, 31, 3, 32, 4, 5, 6, 7, 0, | |
1125 | 0, 8, 9, 10, 0, 0, 0, 0, 12, 0, | |
1126 | 13, 14, 15, 16, 0, 0, 0, 0, 17, 18, | |
1127 | 19, 20, 21, 0, 0, 0, 22, 23, 24, 25, | |
1128 | 26, 0, 0, 0, 0, 0, 2, 29, 30, 0, | |
1129 | 31, 3, 32, 4, 5, 6, 7, 0, 0, 8, | |
1130 | 9, 10, 0, 0, 0, 0, 0, 0, 13, 14, | |
1131 | 15, 16, 0, 0, 0, 0, 17, 18, 19, 20, | |
1132 | 21, 0, 0, 0, 22, 23, 24, 25, 26, 0, | |
1133 | 0, 0, 123, 0, 2, 29, 30, 0, 31, 3, | |
1134 | 32, 4, 5, 6, 7, 0, 0, 8, 9, 10, | |
1135 | 0, 0, 0, 0, 0, 0, 13, 14, 15, 16, | |
1136 | 0, 0, 0, 0, 17, 18, 19, 20, 21, 0, | |
1137 | 0, 0, 22, 23, 24, 25, 26, 0, 0, 0, | |
1138 | 0, 0, 2, 29, 30, 0, 31, 3, 32, 4, | |
1139 | 5, 6, 7, 0, 0, 0, 0, 10, 0, 0, | |
1140 | 0, 0, 0, 0, 66, 14, 15, 16, 0, 0, | |
1141 | 0, 0, 17, 18, 19, 20, 21, 0, 0, 0, | |
1142 | 22, 23, 24, 25, 26, 0, 0, 0, 0, 0, | |
1143 | 0, 29, 30, 0, 31, 0, 32, 103, 14, 15, | |
1144 | 0, 0, 0, 0, 0, 17, 18, 19, 20, 21, | |
1145 | 0, 0, 0, 22, 23, 24, 25, 26, 74, 75, | |
1146 | 76, 77, 78, 0, 29, 30, 79, 0, 0, 80, | |
1147 | 81, 0, 0, 0, 0, 0, 0, 82, 83 | |
1148 | }; | |
f73dda09 | 1149 | |
3185942a JA |
1150 | static const yytype_int16 yycheck[] = |
1151 | { | |
1152 | 6, 7, 0, 61, 9, 0, 68, 192, 38, 21, | |
1153 | 46, 36, 183, 30, 185, 51, 203, 204, 205, 206, | |
1154 | 207, 11, 14, 49, 51, 31, 32, 59, 60, 51, | |
1155 | 62, 58, 25, 65, 14, 24, 58, 49, 68, 226, | |
1156 | 3, 21, 67, 31, 32, 8, 231, 10, 11, 12, | |
1157 | 13, 9, 223, 224, 14, 18, 48, 49, 50, 47, | |
1158 | 48, 66, 14, 55, 54, 28, 25, 25, 25, 49, | |
1159 | 29, 25, 9, 49, 50, 55, 106, 139, 110, 111, | |
1160 | 57, 71, 114, 115, 31, 32, 49, 14, 25, 49, | |
1161 | 25, 49, 55, 25, 57, 55, 128, 49, 0, 57, | |
1162 | 132, 133, 25, 55, 291, 292, 293, 31, 32, 139, | |
1163 | 140, 143, 49, 14, 112, 113, 122, 25, 113, 177, | |
1164 | 57, 25, 49, 27, 130, 131, 116, 189, 55, 135, | |
1165 | 136, 302, 303, 138, 5, 6, 14, 169, 170, 171, | |
1166 | 172, 173, 174, 21, 25, 14, 27, 14, 49, 25, | |
1167 | 54, 183, 25, 185, 55, 25, 188, 27, 216, 189, | |
1168 | 25, 191, 27, 161, 162, 25, 161, 162, 25, 227, | |
1169 | 176, 49, 178, 54, 25, 165, 166, 55, 210, 25, | |
1170 | 49, 4, 49, 14, 54, 217, 55, 192, 55, 54, | |
1171 | 48, 223, 224, 199, 200, 48, 25, 195, 196, 14, | |
1172 | 19, 196, 232, 3, 58, 57, 212, 213, 8, 25, | |
1173 | 10, 11, 12, 13, 25, 221, 222, 25, 18, 48, | |
1174 | 49, 50, 25, 25, 256, 58, 231, 25, 28, 5, | |
1175 | 6, 7, 25, 265, 25, 27, 56, 58, 270, 271, | |
1176 | 272, 33, 34, 35, 36, 37, 56, 279, 15, 41, | |
1177 | 42, 43, 44, 45, 15, 55, 25, 57, 31, 32, | |
1178 | 52, 53, 294, 269, 38, 39, 40, 38, 39, 40, | |
1179 | 302, 303, 25, 279, 47, 48, 49, 283, 284, 48, | |
1180 | 49, 50, 15, 7, 9, 15, 56, 15, 294, 7, | |
1181 | 56, 4, 298, 299, 1, 15, 3, 56, 304, 25, | |
1182 | 15, 8, 56, 10, 11, 12, 13, 15, 56, 16, | |
1183 | 17, 18, 15, 25, 56, 22, 23, 15, 25, 26, | |
1184 | 27, 28, 56, 15, 56, 184, 33, 34, 35, 36, | |
1185 | 37, 9, 250, 210, 41, 42, 43, 44, 45, 290, | |
1186 | 11, -1, 49, 50, 3, 52, 53, -1, 55, 8, | |
1187 | 57, 10, 11, 12, 13, -1, -1, 16, 17, 18, | |
1188 | -1, -1, -1, 22, -1, -1, 25, 26, 27, 28, | |
1189 | -1, -1, -1, -1, 33, 34, 35, 36, 37, -1, | |
1190 | -1, -1, 41, 42, 43, 44, 45, -1, -1, 48, | |
1191 | 49, 50, 3, 52, 53, -1, 55, 8, 57, 10, | |
1192 | 11, 12, 13, -1, -1, 16, 17, 18, -1, -1, | |
1193 | -1, 22, 23, -1, 25, 26, 27, 28, -1, -1, | |
1194 | -1, -1, 33, 34, 35, 36, 37, -1, -1, -1, | |
1195 | 41, 42, 43, 44, 45, -1, -1, -1, 49, -1, | |
1196 | 3, 52, 53, -1, 55, 8, 57, 10, 11, 12, | |
1197 | 13, -1, -1, 16, 17, 18, -1, -1, -1, 22, | |
1198 | 23, -1, 25, 26, 27, 28, -1, -1, -1, -1, | |
1199 | 33, 34, 35, 36, 37, -1, -1, -1, 41, 42, | |
1200 | 43, 44, 45, -1, -1, -1, -1, -1, 3, 52, | |
1201 | 53, -1, 55, 8, 57, 10, 11, 12, 13, -1, | |
1202 | -1, 16, 17, 18, -1, -1, -1, -1, 23, -1, | |
1203 | 25, 26, 27, 28, -1, -1, -1, -1, 33, 34, | |
1204 | 35, 36, 37, -1, -1, -1, 41, 42, 43, 44, | |
1205 | 45, -1, -1, -1, -1, -1, 3, 52, 53, -1, | |
1206 | 55, 8, 57, 10, 11, 12, 13, -1, -1, 16, | |
1207 | 17, 18, -1, -1, -1, -1, -1, -1, 25, 26, | |
1208 | 27, 28, -1, -1, -1, -1, 33, 34, 35, 36, | |
1209 | 37, -1, -1, -1, 41, 42, 43, 44, 45, -1, | |
1210 | -1, -1, 49, -1, 3, 52, 53, -1, 55, 8, | |
1211 | 57, 10, 11, 12, 13, -1, -1, 16, 17, 18, | |
1212 | -1, -1, -1, -1, -1, -1, 25, 26, 27, 28, | |
1213 | -1, -1, -1, -1, 33, 34, 35, 36, 37, -1, | |
1214 | -1, -1, 41, 42, 43, 44, 45, -1, -1, -1, | |
1215 | -1, -1, 3, 52, 53, -1, 55, 8, 57, 10, | |
1216 | 11, 12, 13, -1, -1, -1, -1, 18, -1, -1, | |
1217 | -1, -1, -1, -1, 25, 26, 27, 28, -1, -1, | |
1218 | -1, -1, 33, 34, 35, 36, 37, -1, -1, -1, | |
1219 | 41, 42, 43, 44, 45, -1, -1, -1, -1, -1, | |
1220 | -1, 52, 53, -1, 55, -1, 57, 25, 26, 27, | |
1221 | -1, -1, -1, -1, -1, 33, 34, 35, 36, 37, | |
1222 | -1, -1, -1, 41, 42, 43, 44, 45, 33, 34, | |
1223 | 35, 36, 37, -1, 52, 53, 41, -1, -1, 44, | |
1224 | 45, -1, -1, -1, -1, -1, -1, 52, 53 | |
1225 | }; | |
f73dda09 | 1226 | |
3185942a JA |
1227 | /* YYSTOS[STATE-NUM] -- The (internal number of the) accessing |
1228 | symbol of state STATE-NUM. */ | |
1229 | static const yytype_uint8 yystos[] = | |
1230 | { | |
1231 | 0, 1, 3, 8, 10, 11, 12, 13, 16, 17, | |
1232 | 18, 22, 23, 25, 26, 27, 28, 33, 34, 35, | |
1233 | 36, 37, 41, 42, 43, 44, 45, 49, 50, 52, | |
1234 | 53, 55, 57, 60, 62, 63, 65, 66, 67, 68, | |
1235 | 69, 70, 71, 72, 74, 75, 76, 77, 78, 79, | |
1236 | 92, 93, 94, 95, 96, 49, 85, 86, 91, 25, | |
1237 | 25, 29, 25, 86, 86, 25, 25, 65, 67, 30, | |
1238 | 95, 96, 24, 57, 33, 34, 35, 36, 37, 41, | |
1239 | 44, 45, 52, 53, 25, 25, 25, 27, 54, 25, | |
1240 | 25, 27, 54, 25, 25, 25, 25, 25, 25, 25, | |
1241 | 86, 86, 0, 25, 63, 62, 64, 49, 50, 89, | |
1242 | 31, 32, 47, 48, 46, 51, 22, 48, 49, 50, | |
1243 | 90, 95, 4, 49, 87, 88, 94, 91, 48, 91, | |
1244 | 14, 55, 90, 48, 91, 14, 14, 57, 91, 67, | |
1245 | 64, 19, 95, 58, 25, 25, 25, 27, 54, 25, | |
1246 | 25, 27, 54, 25, 25, 25, 25, 25, 56, 58, | |
1247 | 62, 91, 91, 93, 93, 91, 91, 95, 86, 31, | |
1248 | 32, 47, 48, 49, 21, 91, 14, 21, 55, 86, | |
1249 | 86, 91, 91, 14, 21, 55, 86, 86, 58, 67, | |
1250 | 73, 64, 91, 93, 93, 47, 48, 95, 95, 5, | |
1251 | 6, 7, 80, 91, 91, 91, 91, 91, 81, 82, | |
1252 | 83, 91, 14, 55, 86, 25, 61, 90, 86, 15, | |
1253 | 56, 14, 55, 14, 55, 85, 91, 61, 85, 15, | |
1254 | 15, 91, 64, 73, 86, 86, 7, 88, 88, 88, | |
1255 | 88, 88, 9, 38, 39, 40, 82, 91, 9, 25, | |
1256 | 57, 84, 86, 86, 15, 25, 90, 91, 56, 86, | |
1257 | 86, 85, 85, 15, 88, 90, 56, 73, 7, 4, | |
1258 | 47, 48, 49, 38, 39, 40, 9, 84, 51, 58, | |
1259 | 15, 56, 91, 14, 55, 15, 56, 15, 56, 91, | |
1260 | 86, 91, 91, 91, 58, 25, 86, 91, 14, 55, | |
1261 | 86, 86, 14, 55, 5, 80, 86, 91, 86, 86, | |
1262 | 15, 56, 85, 85, 86, 15, 56, 15, 56 | |
1263 | }; | |
b80f6443 | 1264 | |
f73dda09 JA |
1265 | #define yyerrok (yyerrstatus = 0) |
1266 | #define yyclearin (yychar = YYEMPTY) | |
3185942a | 1267 | #define YYEMPTY (-2) |
f73dda09 | 1268 | #define YYEOF 0 |
3185942a | 1269 | |
f73dda09 | 1270 | #define YYACCEPT goto yyacceptlab |
3185942a JA |
1271 | #define YYABORT goto yyabortlab |
1272 | #define YYERROR goto yyerrorlab | |
1273 | ||
1274 | ||
1275 | /* Like YYERROR except do call yyerror. This remains here temporarily | |
1276 | to ease the transition to the new meaning of YYERROR, for GCC. | |
f73dda09 | 1277 | Once GCC version 2 has supplanted version 1, this can go. */ |
3185942a | 1278 | |
f73dda09 | 1279 | #define YYFAIL goto yyerrlab |
3185942a | 1280 | |
f73dda09 | 1281 | #define YYRECOVERING() (!!yyerrstatus) |
3185942a JA |
1282 | |
1283 | #define YYBACKUP(Token, Value) \ | |
f73dda09 JA |
1284 | do \ |
1285 | if (yychar == YYEMPTY && yylen == 1) \ | |
3185942a JA |
1286 | { \ |
1287 | yychar = (Token); \ | |
1288 | yylval = (Value); \ | |
1289 | yytoken = YYTRANSLATE (yychar); \ | |
1290 | YYPOPSTACK (1); \ | |
f73dda09 JA |
1291 | goto yybackup; \ |
1292 | } \ | |
1293 | else \ | |
3185942a JA |
1294 | { \ |
1295 | yyerror (YY_("syntax error: cannot back up")); \ | |
1296 | YYERROR; \ | |
1297 | } \ | |
1298 | while (YYID (0)) | |
1299 | ||
f73dda09 JA |
1300 | |
1301 | #define YYTERROR 1 | |
1302 | #define YYERRCODE 256 | |
1303 | ||
3185942a JA |
1304 | |
1305 | /* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N]. | |
1306 | If N is 0, then set CURRENT to the empty location which ends | |
1307 | the previous symbol: RHS[0] (always defined). */ | |
1308 | ||
1309 | #define YYRHSLOC(Rhs, K) ((Rhs)[K]) | |
1310 | #ifndef YYLLOC_DEFAULT | |
1311 | # define YYLLOC_DEFAULT(Current, Rhs, N) \ | |
1312 | do \ | |
1313 | if (YYID (N)) \ | |
1314 | { \ | |
1315 | (Current).first_line = YYRHSLOC (Rhs, 1).first_line; \ | |
1316 | (Current).first_column = YYRHSLOC (Rhs, 1).first_column; \ | |
1317 | (Current).last_line = YYRHSLOC (Rhs, N).last_line; \ | |
1318 | (Current).last_column = YYRHSLOC (Rhs, N).last_column; \ | |
1319 | } \ | |
1320 | else \ | |
1321 | { \ | |
1322 | (Current).first_line = (Current).last_line = \ | |
1323 | YYRHSLOC (Rhs, 0).last_line; \ | |
1324 | (Current).first_column = (Current).last_column = \ | |
1325 | YYRHSLOC (Rhs, 0).last_column; \ | |
1326 | } \ | |
1327 | while (YYID (0)) | |
b80f6443 | 1328 | #endif |
f73dda09 | 1329 | |
3185942a JA |
1330 | |
1331 | /* YY_LOCATION_PRINT -- Print the location on the stream. | |
1332 | This macro was not mandated originally: define only if we know | |
1333 | we won't break user code: when these are the locations we know. */ | |
1334 | ||
1335 | #ifndef YY_LOCATION_PRINT | |
1336 | # if YYLTYPE_IS_TRIVIAL | |
1337 | # define YY_LOCATION_PRINT(File, Loc) \ | |
1338 | fprintf (File, "%d.%d-%d.%d", \ | |
1339 | (Loc).first_line, (Loc).first_column, \ | |
1340 | (Loc).last_line, (Loc).last_column) | |
1341 | # else | |
1342 | # define YY_LOCATION_PRINT(File, Loc) ((void) 0) | |
1343 | # endif | |
b80f6443 | 1344 | #endif |
3185942a JA |
1345 | |
1346 | ||
1347 | /* YYLEX -- calling `yylex' with the right arguments. */ | |
1348 | ||
b80f6443 | 1349 | #ifdef YYLEX_PARAM |
3185942a | 1350 | # define YYLEX yylex (YYLEX_PARAM) |
b80f6443 | 1351 | #else |
3185942a | 1352 | # define YYLEX yylex () |
b80f6443 | 1353 | #endif |
3185942a JA |
1354 | |
1355 | /* Enable debugging if requested. */ | |
1356 | #if YYDEBUG | |
1357 | ||
1358 | # ifndef YYFPRINTF | |
1359 | # include <stdio.h> /* INFRINGES ON USER NAME SPACE */ | |
1360 | # define YYFPRINTF fprintf | |
1361 | # endif | |
1362 | ||
1363 | # define YYDPRINTF(Args) \ | |
1364 | do { \ | |
1365 | if (yydebug) \ | |
1366 | YYFPRINTF Args; \ | |
1367 | } while (YYID (0)) | |
1368 | ||
1369 | # define YY_SYMBOL_PRINT(Title, Type, Value, Location) \ | |
1370 | do { \ | |
1371 | if (yydebug) \ | |
1372 | { \ | |
1373 | YYFPRINTF (stderr, "%s ", Title); \ | |
1374 | yy_symbol_print (stderr, \ | |
1375 | Type, Value); \ | |
1376 | YYFPRINTF (stderr, "\n"); \ | |
1377 | } \ | |
1378 | } while (YYID (0)) | |
1379 | ||
1380 | ||
1381 | /*--------------------------------. | |
1382 | | Print this symbol on YYOUTPUT. | | |
1383 | `--------------------------------*/ | |
1384 | ||
1385 | /*ARGSUSED*/ | |
1386 | #if (defined __STDC__ || defined __C99__FUNC__ \ | |
1387 | || defined __cplusplus || defined _MSC_VER) | |
1388 | static void | |
1389 | yy_symbol_value_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep) | |
1390 | #else | |
1391 | static void | |
1392 | yy_symbol_value_print (yyoutput, yytype, yyvaluep) | |
1393 | FILE *yyoutput; | |
1394 | int yytype; | |
1395 | YYSTYPE const * const yyvaluep; | |
b80f6443 | 1396 | #endif |
3185942a JA |
1397 | { |
1398 | if (!yyvaluep) | |
1399 | return; | |
1400 | # ifdef YYPRINT | |
1401 | if (yytype < YYNTOKENS) | |
1402 | YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep); | |
1403 | # else | |
1404 | YYUSE (yyoutput); | |
1405 | # endif | |
1406 | switch (yytype) | |
1407 | { | |
1408 | default: | |
1409 | break; | |
1410 | } | |
1411 | } | |
1412 | ||
1413 | ||
1414 | /*--------------------------------. | |
1415 | | Print this symbol on YYOUTPUT. | | |
1416 | `--------------------------------*/ | |
b80f6443 | 1417 | |
3185942a JA |
1418 | #if (defined __STDC__ || defined __C99__FUNC__ \ |
1419 | || defined __cplusplus || defined _MSC_VER) | |
1420 | static void | |
1421 | yy_symbol_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep) | |
1422 | #else | |
1423 | static void | |
1424 | yy_symbol_print (yyoutput, yytype, yyvaluep) | |
1425 | FILE *yyoutput; | |
1426 | int yytype; | |
1427 | YYSTYPE const * const yyvaluep; | |
1428 | #endif | |
1429 | { | |
1430 | if (yytype < YYNTOKENS) | |
1431 | YYFPRINTF (yyoutput, "token %s (", yytname[yytype]); | |
1432 | else | |
1433 | YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]); | |
726f6388 | 1434 | |
3185942a JA |
1435 | yy_symbol_value_print (yyoutput, yytype, yyvaluep); |
1436 | YYFPRINTF (yyoutput, ")"); | |
1437 | } | |
726f6388 | 1438 | |
3185942a JA |
1439 | /*------------------------------------------------------------------. |
1440 | | yy_stack_print -- Print the state stack from its BOTTOM up to its | | |
1441 | | TOP (included). | | |
1442 | `------------------------------------------------------------------*/ | |
b80f6443 | 1443 | |
3185942a JA |
1444 | #if (defined __STDC__ || defined __C99__FUNC__ \ |
1445 | || defined __cplusplus || defined _MSC_VER) | |
1446 | static void | |
1447 | yy_stack_print (yytype_int16 *bottom, yytype_int16 *top) | |
1448 | #else | |
1449 | static void | |
1450 | yy_stack_print (bottom, top) | |
1451 | yytype_int16 *bottom; | |
1452 | yytype_int16 *top; | |
f73dda09 | 1453 | #endif |
3185942a JA |
1454 | { |
1455 | YYFPRINTF (stderr, "Stack now"); | |
1456 | for (; bottom <= top; ++bottom) | |
1457 | YYFPRINTF (stderr, " %d", *bottom); | |
1458 | YYFPRINTF (stderr, "\n"); | |
1459 | } | |
726f6388 | 1460 | |
3185942a JA |
1461 | # define YY_STACK_PRINT(Bottom, Top) \ |
1462 | do { \ | |
1463 | if (yydebug) \ | |
1464 | yy_stack_print ((Bottom), (Top)); \ | |
1465 | } while (YYID (0)) | |
726f6388 | 1466 | |
3185942a JA |
1467 | |
1468 | /*------------------------------------------------. | |
1469 | | Report that the YYRULE is going to be reduced. | | |
1470 | `------------------------------------------------*/ | |
1471 | ||
1472 | #if (defined __STDC__ || defined __C99__FUNC__ \ | |
1473 | || defined __cplusplus || defined _MSC_VER) | |
1474 | static void | |
1475 | yy_reduce_print (YYSTYPE *yyvsp, int yyrule) | |
1476 | #else | |
1477 | static void | |
1478 | yy_reduce_print (yyvsp, yyrule) | |
1479 | YYSTYPE *yyvsp; | |
1480 | int yyrule; | |
b80f6443 | 1481 | #endif |
3185942a JA |
1482 | { |
1483 | int yynrhs = yyr2[yyrule]; | |
1484 | int yyi; | |
1485 | unsigned long int yylno = yyrline[yyrule]; | |
1486 | YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n", | |
1487 | yyrule - 1, yylno); | |
1488 | /* The symbols being reduced. */ | |
1489 | for (yyi = 0; yyi < yynrhs; yyi++) | |
1490 | { | |
1491 | fprintf (stderr, " $%d = ", yyi + 1); | |
1492 | yy_symbol_print (stderr, yyrhs[yyprhs[yyrule] + yyi], | |
1493 | &(yyvsp[(yyi + 1) - (yynrhs)]) | |
1494 | ); | |
1495 | fprintf (stderr, "\n"); | |
1496 | } | |
1497 | } | |
1498 | ||
1499 | # define YY_REDUCE_PRINT(Rule) \ | |
1500 | do { \ | |
1501 | if (yydebug) \ | |
1502 | yy_reduce_print (yyvsp, Rule); \ | |
1503 | } while (YYID (0)) | |
b80f6443 | 1504 | |
3185942a JA |
1505 | /* Nonzero means print parse trace. It is left uninitialized so that |
1506 | multiple parsers can coexist. */ | |
1507 | int yydebug; | |
1508 | #else /* !YYDEBUG */ | |
1509 | # define YYDPRINTF(Args) | |
1510 | # define YY_SYMBOL_PRINT(Title, Type, Value, Location) | |
1511 | # define YY_STACK_PRINT(Bottom, Top) | |
1512 | # define YY_REDUCE_PRINT(Rule) | |
1513 | #endif /* !YYDEBUG */ | |
726f6388 | 1514 | |
3185942a JA |
1515 | |
1516 | /* YYINITDEPTH -- initial size of the parser's stacks. */ | |
f73dda09 | 1517 | #ifndef YYINITDEPTH |
3185942a | 1518 | # define YYINITDEPTH 200 |
f73dda09 | 1519 | #endif |
726f6388 | 1520 | |
3185942a JA |
1521 | /* YYMAXDEPTH -- maximum size the stacks can grow to (effective only |
1522 | if the built-in stack extension method is used). | |
726f6388 | 1523 | |
3185942a JA |
1524 | Do not make this value too large; the results are undefined if |
1525 | YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH) | |
1526 | evaluated with infinite-precision integer arithmetic. */ | |
726f6388 | 1527 | |
f73dda09 | 1528 | #ifndef YYMAXDEPTH |
3185942a | 1529 | # define YYMAXDEPTH 10000 |
f73dda09 | 1530 | #endif |
3185942a | 1531 | |
f73dda09 | 1532 | \f |
3185942a JA |
1533 | |
1534 | #if YYERROR_VERBOSE | |
1535 | ||
1536 | # ifndef yystrlen | |
1537 | # if defined __GLIBC__ && defined _STRING_H | |
1538 | # define yystrlen strlen | |
1539 | # else | |
1540 | /* Return the length of YYSTR. */ | |
1541 | #if (defined __STDC__ || defined __C99__FUNC__ \ | |
1542 | || defined __cplusplus || defined _MSC_VER) | |
1543 | static YYSIZE_T | |
1544 | yystrlen (const char *yystr) | |
1545 | #else | |
1546 | static YYSIZE_T | |
1547 | yystrlen (yystr) | |
1548 | const char *yystr; | |
1549 | #endif | |
1550 | { | |
1551 | YYSIZE_T yylen; | |
1552 | for (yylen = 0; yystr[yylen]; yylen++) | |
1553 | continue; | |
1554 | return yylen; | |
1555 | } | |
1556 | # endif | |
1557 | # endif | |
1558 | ||
1559 | # ifndef yystpcpy | |
1560 | # if defined __GLIBC__ && defined _STRING_H && defined _GNU_SOURCE | |
1561 | # define yystpcpy stpcpy | |
1562 | # else | |
1563 | /* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in | |
1564 | YYDEST. */ | |
1565 | #if (defined __STDC__ || defined __C99__FUNC__ \ | |
1566 | || defined __cplusplus || defined _MSC_VER) | |
1567 | static char * | |
1568 | yystpcpy (char *yydest, const char *yysrc) | |
1569 | #else | |
1570 | static char * | |
1571 | yystpcpy (yydest, yysrc) | |
1572 | char *yydest; | |
1573 | const char *yysrc; | |
1574 | #endif | |
726f6388 | 1575 | { |
3185942a JA |
1576 | char *yyd = yydest; |
1577 | const char *yys = yysrc; | |
1578 | ||
1579 | while ((*yyd++ = *yys++) != '\0') | |
1580 | continue; | |
1581 | ||
1582 | return yyd - 1; | |
1583 | } | |
1584 | # endif | |
1585 | # endif | |
1586 | ||
1587 | # ifndef yytnamerr | |
1588 | /* Copy to YYRES the contents of YYSTR after stripping away unnecessary | |
1589 | quotes and backslashes, so that it's suitable for yyerror. The | |
1590 | heuristic is that double-quoting is unnecessary unless the string | |
1591 | contains an apostrophe, a comma, or backslash (other than | |
1592 | backslash-backslash). YYSTR is taken from yytname. If YYRES is | |
1593 | null, do not copy; instead, return the length of what the result | |
1594 | would have been. */ | |
1595 | static YYSIZE_T | |
1596 | yytnamerr (char *yyres, const char *yystr) | |
1597 | { | |
1598 | if (*yystr == '"') | |
1599 | { | |
1600 | YYSIZE_T yyn = 0; | |
1601 | char const *yyp = yystr; | |
1602 | ||
1603 | for (;;) | |
1604 | switch (*++yyp) | |
1605 | { | |
1606 | case '\'': | |
1607 | case ',': | |
1608 | goto do_not_strip_quotes; | |
1609 | ||
1610 | case '\\': | |
1611 | if (*++yyp != '\\') | |
1612 | goto do_not_strip_quotes; | |
1613 | /* Fall through. */ | |
1614 | default: | |
1615 | if (yyres) | |
1616 | yyres[yyn] = *yyp; | |
1617 | yyn++; | |
1618 | break; | |
1619 | ||
1620 | case '"': | |
1621 | if (yyres) | |
1622 | yyres[yyn] = '\0'; | |
1623 | return yyn; | |
1624 | } | |
1625 | do_not_strip_quotes: ; | |
1626 | } | |
f73dda09 | 1627 | |
3185942a JA |
1628 | if (! yyres) |
1629 | return yystrlen (yystr); | |
1630 | ||
1631 | return yystpcpy (yyres, yystr) - yyres; | |
1632 | } | |
1633 | # endif | |
1634 | ||
1635 | /* Copy into YYRESULT an error message about the unexpected token | |
1636 | YYCHAR while in state YYSTATE. Return the number of bytes copied, | |
1637 | including the terminating null byte. If YYRESULT is null, do not | |
1638 | copy anything; just return the number of bytes that would be | |
1639 | copied. As a special case, return 0 if an ordinary "syntax error" | |
1640 | message will do. Return YYSIZE_MAXIMUM if overflow occurs during | |
1641 | size calculation. */ | |
1642 | static YYSIZE_T | |
1643 | yysyntax_error (char *yyresult, int yystate, int yychar) | |
1644 | { | |
1645 | int yyn = yypact[yystate]; | |
1646 | ||
1647 | if (! (YYPACT_NINF < yyn && yyn <= YYLAST)) | |
1648 | return 0; | |
1649 | else | |
1650 | { | |
1651 | int yytype = YYTRANSLATE (yychar); | |
1652 | YYSIZE_T yysize0 = yytnamerr (0, yytname[yytype]); | |
1653 | YYSIZE_T yysize = yysize0; | |
1654 | YYSIZE_T yysize1; | |
1655 | int yysize_overflow = 0; | |
1656 | enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 }; | |
1657 | char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM]; | |
1658 | int yyx; | |
1659 | ||
1660 | # if 0 | |
1661 | /* This is so xgettext sees the translatable formats that are | |
1662 | constructed on the fly. */ | |
1663 | YY_("syntax error, unexpected %s"); | |
1664 | YY_("syntax error, unexpected %s, expecting %s"); | |
1665 | YY_("syntax error, unexpected %s, expecting %s or %s"); | |
1666 | YY_("syntax error, unexpected %s, expecting %s or %s or %s"); | |
1667 | YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s"); | |
1668 | # endif | |
1669 | char *yyfmt; | |
1670 | char const *yyf; | |
1671 | static char const yyunexpected[] = "syntax error, unexpected %s"; | |
1672 | static char const yyexpecting[] = ", expecting %s"; | |
1673 | static char const yyor[] = " or %s"; | |
1674 | char yyformat[sizeof yyunexpected | |
1675 | + sizeof yyexpecting - 1 | |
1676 | + ((YYERROR_VERBOSE_ARGS_MAXIMUM - 2) | |
1677 | * (sizeof yyor - 1))]; | |
1678 | char const *yyprefix = yyexpecting; | |
1679 | ||
1680 | /* Start YYX at -YYN if negative to avoid negative indexes in | |
1681 | YYCHECK. */ | |
1682 | int yyxbegin = yyn < 0 ? -yyn : 0; | |
1683 | ||
1684 | /* Stay within bounds of both yycheck and yytname. */ | |
1685 | int yychecklim = YYLAST - yyn + 1; | |
1686 | int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS; | |
1687 | int yycount = 1; | |
1688 | ||
1689 | yyarg[0] = yytname[yytype]; | |
1690 | yyfmt = yystpcpy (yyformat, yyunexpected); | |
1691 | ||
1692 | for (yyx = yyxbegin; yyx < yyxend; ++yyx) | |
1693 | if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR) | |
1694 | { | |
1695 | if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM) | |
1696 | { | |
1697 | yycount = 1; | |
1698 | yysize = yysize0; | |
1699 | yyformat[sizeof yyunexpected - 1] = '\0'; | |
1700 | break; | |
1701 | } | |
1702 | yyarg[yycount++] = yytname[yyx]; | |
1703 | yysize1 = yysize + yytnamerr (0, yytname[yyx]); | |
1704 | yysize_overflow |= (yysize1 < yysize); | |
1705 | yysize = yysize1; | |
1706 | yyfmt = yystpcpy (yyfmt, yyprefix); | |
1707 | yyprefix = yyor; | |
1708 | } | |
1709 | ||
1710 | yyf = YY_(yyformat); | |
1711 | yysize1 = yysize + yystrlen (yyf); | |
1712 | yysize_overflow |= (yysize1 < yysize); | |
1713 | yysize = yysize1; | |
1714 | ||
1715 | if (yysize_overflow) | |
1716 | return YYSIZE_MAXIMUM; | |
1717 | ||
1718 | if (yyresult) | |
1719 | { | |
1720 | /* Avoid sprintf, as that infringes on the user's name space. | |
1721 | Don't have undefined behavior even if the translation | |
1722 | produced a string with the wrong number of "%s"s. */ | |
1723 | char *yyp = yyresult; | |
1724 | int yyi = 0; | |
1725 | while ((*yyp = *yyf) != '\0') | |
1726 | { | |
1727 | if (*yyp == '%' && yyf[1] == 's' && yyi < yycount) | |
1728 | { | |
1729 | yyp += yytnamerr (yyp, yyarg[yyi++]); | |
1730 | yyf += 2; | |
1731 | } | |
1732 | else | |
1733 | { | |
1734 | yyp++; | |
1735 | yyf++; | |
1736 | } | |
1737 | } | |
1738 | } | |
1739 | return yysize; | |
1740 | } | |
726f6388 | 1741 | } |
3185942a JA |
1742 | #endif /* YYERROR_VERBOSE */ |
1743 | \f | |
726f6388 | 1744 | |
3185942a JA |
1745 | /*-----------------------------------------------. |
1746 | | Release the memory associated to this symbol. | | |
1747 | `-----------------------------------------------*/ | |
726f6388 | 1748 | |
3185942a JA |
1749 | /*ARGSUSED*/ |
1750 | #if (defined __STDC__ || defined __C99__FUNC__ \ | |
1751 | || defined __cplusplus || defined _MSC_VER) | |
1752 | static void | |
1753 | yydestruct (const char *yymsg, int yytype, YYSTYPE *yyvaluep) | |
1754 | #else | |
b80f6443 | 1755 | static void |
3185942a JA |
1756 | yydestruct (yymsg, yytype, yyvaluep) |
1757 | const char *yymsg; | |
1758 | int yytype; | |
1759 | YYSTYPE *yyvaluep; | |
1760 | #endif | |
7117c2d2 | 1761 | { |
3185942a | 1762 | YYUSE (yyvaluep); |
726f6388 | 1763 | |
3185942a JA |
1764 | if (!yymsg) |
1765 | yymsg = "Deleting"; | |
1766 | YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp); | |
b80f6443 | 1767 | |
3185942a JA |
1768 | switch (yytype) |
1769 | { | |
1770 | ||
1771 | default: | |
1772 | break; | |
1773 | } | |
1774 | } | |
f73dda09 | 1775 | \f |
f73dda09 | 1776 | |
3185942a | 1777 | /* Prevent warnings from -Wmissing-prototypes. */ |
f73dda09 JA |
1778 | |
1779 | #ifdef YYPARSE_PARAM | |
3185942a JA |
1780 | #if defined __STDC__ || defined __cplusplus |
1781 | int yyparse (void *YYPARSE_PARAM); | |
b80f6443 | 1782 | #else |
3185942a | 1783 | int yyparse (); |
f73dda09 | 1784 | #endif |
3185942a JA |
1785 | #else /* ! YYPARSE_PARAM */ |
1786 | #if defined __STDC__ || defined __cplusplus | |
1787 | int yyparse (void); | |
1788 | #else | |
1789 | int yyparse (); | |
726f6388 | 1790 | #endif |
3185942a JA |
1791 | #endif /* ! YYPARSE_PARAM */ |
1792 | ||
726f6388 | 1793 | |
726f6388 | 1794 | |
3185942a JA |
1795 | /* The look-ahead symbol. */ |
1796 | int yychar; | |
b80f6443 | 1797 | |
3185942a JA |
1798 | /* The semantic value of the look-ahead symbol. */ |
1799 | YYSTYPE yylval; | |
b80f6443 | 1800 | |
3185942a JA |
1801 | /* Number of syntax errors so far. */ |
1802 | int yynerrs; | |
726f6388 | 1803 | |
3185942a JA |
1804 | |
1805 | ||
1806 | /*----------. | |
1807 | | yyparse. | | |
1808 | `----------*/ | |
1809 | ||
1810 | #ifdef YYPARSE_PARAM | |
1811 | #if (defined __STDC__ || defined __C99__FUNC__ \ | |
1812 | || defined __cplusplus || defined _MSC_VER) | |
1813 | int | |
1814 | yyparse (void *YYPARSE_PARAM) | |
f73dda09 | 1815 | #else |
3185942a JA |
1816 | int |
1817 | yyparse (YYPARSE_PARAM) | |
1818 | void *YYPARSE_PARAM; | |
f73dda09 | 1819 | #endif |
3185942a JA |
1820 | #else /* ! YYPARSE_PARAM */ |
1821 | #if (defined __STDC__ || defined __C99__FUNC__ \ | |
1822 | || defined __cplusplus || defined _MSC_VER) | |
1823 | int | |
1824 | yyparse (void) | |
1825 | #else | |
1826 | int | |
1827 | yyparse () | |
726f6388 | 1828 | |
b80f6443 | 1829 | #endif |
3185942a JA |
1830 | #endif |
1831 | { | |
1832 | ||
1833 | int yystate; | |
1834 | int yyn; | |
1835 | int yyresult; | |
1836 | /* Number of tokens to shift before error messages enabled. */ | |
1837 | int yyerrstatus; | |
1838 | /* Look-ahead token as an internal (translated) token number. */ | |
1839 | int yytoken = 0; | |
1840 | #if YYERROR_VERBOSE | |
1841 | /* Buffer for error messages, and its allocated size. */ | |
1842 | char yymsgbuf[128]; | |
1843 | char *yymsg = yymsgbuf; | |
1844 | YYSIZE_T yymsg_alloc = sizeof yymsgbuf; | |
7117c2d2 | 1845 | #endif |
726f6388 | 1846 | |
3185942a JA |
1847 | /* Three stacks and their tools: |
1848 | `yyss': related to states, | |
1849 | `yyvs': related to semantic values, | |
1850 | `yyls': related to locations. | |
b80f6443 | 1851 | |
3185942a JA |
1852 | Refer to the stacks thru separate pointers, to allow yyoverflow |
1853 | to reallocate them elsewhere. */ | |
726f6388 | 1854 | |
3185942a JA |
1855 | /* The state stack. */ |
1856 | yytype_int16 yyssa[YYINITDEPTH]; | |
1857 | yytype_int16 *yyss = yyssa; | |
1858 | yytype_int16 *yyssp; | |
1859 | ||
1860 | /* The semantic value stack. */ | |
1861 | YYSTYPE yyvsa[YYINITDEPTH]; | |
1862 | YYSTYPE *yyvs = yyvsa; | |
1863 | YYSTYPE *yyvsp; | |
1864 | ||
1865 | ||
1866 | ||
1867 | #define YYPOPSTACK(N) (yyvsp -= (N), yyssp -= (N)) | |
1868 | ||
1869 | YYSIZE_T yystacksize = YYINITDEPTH; | |
1870 | ||
1871 | /* The variables used to return semantic value and location from the | |
1872 | action routines. */ | |
1873 | YYSTYPE yyval; | |
1874 | ||
1875 | ||
1876 | /* The number of symbols on the RHS of the reduced rule. | |
1877 | Keep to zero when no symbol should be popped. */ | |
1878 | int yylen = 0; | |
1879 | ||
1880 | YYDPRINTF ((stderr, "Starting parse\n")); | |
726f6388 | 1881 | |
f73dda09 JA |
1882 | yystate = 0; |
1883 | yyerrstatus = 0; | |
1884 | yynerrs = 0; | |
1885 | yychar = YYEMPTY; /* Cause a token to be read. */ | |
1886 | ||
1887 | /* Initialize stack pointers. | |
1888 | Waste one element of value and location stack | |
1889 | so that they stay on the same level as the state stack. | |
1890 | The wasted elements are never initialized. */ | |
1891 | ||
3185942a | 1892 | yyssp = yyss; |
f73dda09 | 1893 | yyvsp = yyvs; |
f73dda09 | 1894 | |
3185942a | 1895 | goto yysetstate; |
f73dda09 | 1896 | |
3185942a JA |
1897 | /*------------------------------------------------------------. |
1898 | | yynewstate -- Push a new state, which is found in yystate. | | |
1899 | `------------------------------------------------------------*/ | |
1900 | yynewstate: | |
1901 | /* In all cases, when you get here, the value and location stacks | |
1902 | have just been pushed. So pushing a state here evens the stacks. */ | |
1903 | yyssp++; | |
f73dda09 | 1904 | |
3185942a JA |
1905 | yysetstate: |
1906 | *yyssp = yystate; | |
b80f6443 | 1907 | |
3185942a JA |
1908 | if (yyss + yystacksize - 1 <= yyssp) |
1909 | { | |
f73dda09 | 1910 | /* Get the current used size of the three stacks, in elements. */ |
3185942a | 1911 | YYSIZE_T yysize = yyssp - yyss + 1; |
f73dda09 JA |
1912 | |
1913 | #ifdef yyoverflow | |
3185942a JA |
1914 | { |
1915 | /* Give user a chance to reallocate the stack. Use copies of | |
1916 | these so that the &'s don't force the real ones into | |
1917 | memory. */ | |
1918 | YYSTYPE *yyvs1 = yyvs; | |
1919 | yytype_int16 *yyss1 = yyss; | |
b80f6443 | 1920 | |
3185942a JA |
1921 | |
1922 | /* Each stack pointer address is followed by the size of the | |
1923 | data in use in that stack, in bytes. This used to be a | |
1924 | conditional around just the two extra args, but that might | |
1925 | be undefined if yyoverflow is a macro. */ | |
1926 | yyoverflow (YY_("memory exhausted"), | |
1927 | &yyss1, yysize * sizeof (*yyssp), | |
1928 | &yyvs1, yysize * sizeof (*yyvsp), | |
1929 | ||
1930 | &yystacksize); | |
1931 | ||
1932 | yyss = yyss1; | |
1933 | yyvs = yyvs1; | |
1934 | } | |
f73dda09 | 1935 | #else /* no yyoverflow */ |
3185942a JA |
1936 | # ifndef YYSTACK_RELOCATE |
1937 | goto yyexhaustedlab; | |
1938 | # else | |
f73dda09 | 1939 | /* Extend the stack our own way. */ |
3185942a JA |
1940 | if (YYMAXDEPTH <= yystacksize) |
1941 | goto yyexhaustedlab; | |
f73dda09 | 1942 | yystacksize *= 2; |
3185942a | 1943 | if (YYMAXDEPTH < yystacksize) |
f73dda09 | 1944 | yystacksize = YYMAXDEPTH; |
3185942a JA |
1945 | |
1946 | { | |
1947 | yytype_int16 *yyss1 = yyss; | |
1948 | union yyalloc *yyptr = | |
1949 | (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize)); | |
1950 | if (! yyptr) | |
1951 | goto yyexhaustedlab; | |
1952 | YYSTACK_RELOCATE (yyss); | |
1953 | YYSTACK_RELOCATE (yyvs); | |
1954 | ||
1955 | # undef YYSTACK_RELOCATE | |
1956 | if (yyss1 != yyssa) | |
1957 | YYSTACK_FREE (yyss1); | |
1958 | } | |
1959 | # endif | |
f73dda09 | 1960 | #endif /* no yyoverflow */ |
726f6388 | 1961 | |
3185942a JA |
1962 | yyssp = yyss + yysize - 1; |
1963 | yyvsp = yyvs + yysize - 1; | |
726f6388 | 1964 | |
726f6388 | 1965 | |
3185942a JA |
1966 | YYDPRINTF ((stderr, "Stack size increased to %lu\n", |
1967 | (unsigned long int) yystacksize)); | |
1968 | ||
1969 | if (yyss + yystacksize - 1 <= yyssp) | |
f73dda09 | 1970 | YYABORT; |
726f6388 JA |
1971 | } |
1972 | ||
3185942a | 1973 | YYDPRINTF ((stderr, "Entering state %d\n", yystate)); |
28ef6c31 | 1974 | |
f73dda09 | 1975 | goto yybackup; |
28ef6c31 | 1976 | |
3185942a JA |
1977 | /*-----------. |
1978 | | yybackup. | | |
1979 | `-----------*/ | |
1980 | yybackup: | |
28ef6c31 | 1981 | |
3185942a JA |
1982 | /* Do appropriate processing given the current state. Read a |
1983 | look-ahead token if we need one and don't already have one. */ | |
726f6388 | 1984 | |
3185942a | 1985 | /* First try to decide what to do without reference to look-ahead token. */ |
f73dda09 | 1986 | yyn = yypact[yystate]; |
3185942a | 1987 | if (yyn == YYPACT_NINF) |
f73dda09 | 1988 | goto yydefault; |
726f6388 | 1989 | |
3185942a | 1990 | /* Not known => get a look-ahead token if don't already have one. */ |
726f6388 | 1991 | |
3185942a | 1992 | /* YYCHAR is either YYEMPTY or YYEOF or a valid look-ahead symbol. */ |
f73dda09 | 1993 | if (yychar == YYEMPTY) |
726f6388 | 1994 | { |
3185942a | 1995 | YYDPRINTF ((stderr, "Reading a token: ")); |
f73dda09 | 1996 | yychar = YYLEX; |
726f6388 | 1997 | } |
726f6388 | 1998 | |
3185942a | 1999 | if (yychar <= YYEOF) |
f73dda09 | 2000 | { |
3185942a JA |
2001 | yychar = yytoken = YYEOF; |
2002 | YYDPRINTF ((stderr, "Now at end of input.\n")); | |
f73dda09 JA |
2003 | } |
2004 | else | |
2005 | { | |
3185942a JA |
2006 | yytoken = YYTRANSLATE (yychar); |
2007 | YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc); | |
f73dda09 | 2008 | } |
726f6388 | 2009 | |
3185942a JA |
2010 | /* If the proper action on seeing token YYTOKEN is to reduce or to |
2011 | detect an error, take that action. */ | |
2012 | yyn += yytoken; | |
2013 | if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken) | |
f73dda09 | 2014 | goto yydefault; |
f73dda09 | 2015 | yyn = yytable[yyn]; |
3185942a | 2016 | if (yyn <= 0) |
f73dda09 | 2017 | { |
3185942a | 2018 | if (yyn == 0 || yyn == YYTABLE_NINF) |
f73dda09 JA |
2019 | goto yyerrlab; |
2020 | yyn = -yyn; | |
2021 | goto yyreduce; | |
2022 | } | |
726f6388 | 2023 | |
f73dda09 JA |
2024 | if (yyn == YYFINAL) |
2025 | YYACCEPT; | |
726f6388 | 2026 | |
3185942a JA |
2027 | /* Count tokens shifted since error; after three, turn off error |
2028 | status. */ | |
2029 | if (yyerrstatus) | |
2030 | yyerrstatus--; | |
b80f6443 | 2031 | |
3185942a JA |
2032 | /* Shift the look-ahead token. */ |
2033 | YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc); | |
726f6388 | 2034 | |
3185942a | 2035 | /* Discard the shifted token unless it is eof. */ |
f73dda09 JA |
2036 | if (yychar != YYEOF) |
2037 | yychar = YYEMPTY; | |
28ef6c31 | 2038 | |
3185942a | 2039 | yystate = yyn; |
f73dda09 | 2040 | *++yyvsp = yylval; |
28ef6c31 | 2041 | |
f73dda09 | 2042 | goto yynewstate; |
726f6388 | 2043 | |
b80f6443 | 2044 | |
3185942a JA |
2045 | /*-----------------------------------------------------------. |
2046 | | yydefault -- do the default action for the current state. | | |
2047 | `-----------------------------------------------------------*/ | |
2048 | yydefault: | |
f73dda09 JA |
2049 | yyn = yydefact[yystate]; |
2050 | if (yyn == 0) | |
2051 | goto yyerrlab; | |
3185942a | 2052 | goto yyreduce; |
28ef6c31 | 2053 | |
3185942a JA |
2054 | |
2055 | /*-----------------------------. | |
2056 | | yyreduce -- Do a reduction. | | |
2057 | `-----------------------------*/ | |
f73dda09 | 2058 | yyreduce: |
3185942a | 2059 | /* yyn is the number of a rule to reduce with. */ |
f73dda09 | 2060 | yylen = yyr2[yyn]; |
28ef6c31 | 2061 | |
3185942a JA |
2062 | /* If YYLEN is nonzero, implement the default value of the action: |
2063 | `$$ = $1'. | |
28ef6c31 | 2064 | |
3185942a JA |
2065 | Otherwise, the following line sets YYVAL to garbage. |
2066 | This behavior is undocumented and Bison | |
2067 | users should not rely upon it. Assigning to YYVAL | |
2068 | unconditionally makes the parser a bit smaller, and it avoids a | |
2069 | GCC warning that YYVAL may be used uninitialized. */ | |
2070 | yyval = yyvsp[1-yylen]; | |
b80f6443 | 2071 | |
28ef6c31 | 2072 | |
3185942a JA |
2073 | YY_REDUCE_PRINT (yyn); |
2074 | switch (yyn) | |
2075 | { | |
2076 | case 2: | |
2077 | #line 370 "/Users/chet/src/bash/src/parse.y" | |
2078 | { | |
f73dda09 JA |
2079 | /* Case of regular command. Discard the error |
2080 | safety net,and return the command just parsed. */ | |
3185942a | 2081 | global_command = (yyvsp[(1) - (2)].command); |
f73dda09 | 2082 | eof_encountered = 0; |
7117c2d2 | 2083 | /* discard_parser_constructs (0); */ |
3185942a JA |
2084 | if (parser_state & PST_CMDSUBST) |
2085 | parser_state |= PST_EOFTOKEN; | |
f73dda09 | 2086 | YYACCEPT; |
3185942a JA |
2087 | } |
2088 | break; | |
2089 | ||
2090 | case 3: | |
2091 | #line 381 "/Users/chet/src/bash/src/parse.y" | |
2092 | { | |
f73dda09 JA |
2093 | /* Case of regular command, but not a very |
2094 | interesting one. Return a NULL command. */ | |
2095 | global_command = (COMMAND *)NULL; | |
3185942a JA |
2096 | if (parser_state & PST_CMDSUBST) |
2097 | parser_state |= PST_EOFTOKEN; | |
f73dda09 | 2098 | YYACCEPT; |
3185942a JA |
2099 | } |
2100 | break; | |
2101 | ||
2102 | case 4: | |
2103 | #line 390 "/Users/chet/src/bash/src/parse.y" | |
2104 | { | |
f73dda09 JA |
2105 | /* Error during parsing. Return NULL command. */ |
2106 | global_command = (COMMAND *)NULL; | |
2107 | eof_encountered = 0; | |
7117c2d2 | 2108 | /* discard_parser_constructs (1); */ |
3185942a | 2109 | if (interactive && parse_and_execute_level == 0) |
f73dda09 JA |
2110 | { |
2111 | YYACCEPT; | |
2112 | } | |
2113 | else | |
2114 | { | |
2115 | YYABORT; | |
2116 | } | |
3185942a JA |
2117 | } |
2118 | break; | |
2119 | ||
2120 | case 5: | |
2121 | #line 405 "/Users/chet/src/bash/src/parse.y" | |
2122 | { | |
f73dda09 JA |
2123 | /* Case of EOF seen by itself. Do ignoreeof or |
2124 | not. */ | |
2125 | global_command = (COMMAND *)NULL; | |
2126 | handle_eof_input_unit (); | |
2127 | YYACCEPT; | |
3185942a JA |
2128 | } |
2129 | break; | |
2130 | ||
2131 | case 6: | |
2132 | #line 415 "/Users/chet/src/bash/src/parse.y" | |
2133 | { (yyval.word_list) = make_word_list ((yyvsp[(1) - (1)].word), (WORD_LIST *)NULL); } | |
2134 | break; | |
2135 | ||
2136 | case 7: | |
2137 | #line 417 "/Users/chet/src/bash/src/parse.y" | |
2138 | { (yyval.word_list) = make_word_list ((yyvsp[(2) - (2)].word), (yyvsp[(1) - (2)].word_list)); } | |
2139 | break; | |
2140 | ||
2141 | case 8: | |
2142 | #line 421 "/Users/chet/src/bash/src/parse.y" | |
2143 | { | |
2144 | redir.filename = (yyvsp[(2) - (2)].word); | |
2145 | (yyval.redirect) = make_redirection (1, r_output_direction, redir); | |
2146 | } | |
2147 | break; | |
2148 | ||
2149 | case 9: | |
2150 | #line 426 "/Users/chet/src/bash/src/parse.y" | |
2151 | { | |
2152 | redir.filename = (yyvsp[(2) - (2)].word); | |
2153 | (yyval.redirect) = make_redirection (0, r_input_direction, redir); | |
2154 | } | |
2155 | break; | |
2156 | ||
2157 | case 10: | |
2158 | #line 431 "/Users/chet/src/bash/src/parse.y" | |
2159 | { | |
2160 | redir.filename = (yyvsp[(3) - (3)].word); | |
2161 | (yyval.redirect) = make_redirection ((yyvsp[(1) - (3)].number), r_output_direction, redir); | |
2162 | } | |
2163 | break; | |
2164 | ||
2165 | case 11: | |
0628567a | 2166 | #line 436 "/Users/chet/src/bash/src/parse.y" |
3185942a JA |
2167 | { |
2168 | redir.filename = (yyvsp[(3) - (3)].word); | |
2169 | (yyval.redirect) = make_redirection ((yyvsp[(1) - (3)].number), r_input_direction, redir); | |
2170 | } | |
2171 | break; | |
2172 | ||
2173 | case 12: | |
0628567a | 2174 | #line 441 "/Users/chet/src/bash/src/parse.y" |
3185942a JA |
2175 | { |
2176 | redir.filename = (yyvsp[(2) - (2)].word); | |
2177 | (yyval.redirect) = make_redirection (1, r_appending_to, redir); | |
2178 | } | |
2179 | break; | |
2180 | ||
2181 | case 13: | |
0628567a | 2182 | #line 446 "/Users/chet/src/bash/src/parse.y" |
3185942a JA |
2183 | { |
2184 | redir.filename = (yyvsp[(3) - (3)].word); | |
2185 | (yyval.redirect) = make_redirection ((yyvsp[(1) - (3)].number), r_appending_to, redir); | |
2186 | } | |
2187 | break; | |
2188 | ||
2189 | case 14: | |
0628567a | 2190 | #line 451 "/Users/chet/src/bash/src/parse.y" |
3185942a JA |
2191 | { |
2192 | redir.filename = (yyvsp[(2) - (2)].word); | |
2193 | (yyval.redirect) = make_redirection (0, r_reading_until, redir); | |
2194 | redir_stack[need_here_doc++] = (yyval.redirect); | |
2195 | } | |
2196 | break; | |
2197 | ||
2198 | case 15: | |
2199 | #line 457 "/Users/chet/src/bash/src/parse.y" | |
2200 | { | |
2201 | redir.filename = (yyvsp[(3) - (3)].word); | |
2202 | (yyval.redirect) = make_redirection ((yyvsp[(1) - (3)].number), r_reading_until, redir); | |
2203 | redir_stack[need_here_doc++] = (yyval.redirect); | |
2204 | } | |
2205 | break; | |
2206 | ||
2207 | case 16: | |
2208 | #line 463 "/Users/chet/src/bash/src/parse.y" | |
2209 | { | |
2210 | redir.filename = (yyvsp[(2) - (2)].word); | |
2211 | (yyval.redirect) = make_redirection (0, r_reading_string, redir); | |
2212 | } | |
2213 | break; | |
2214 | ||
2215 | case 17: | |
2216 | #line 468 "/Users/chet/src/bash/src/parse.y" | |
2217 | { | |
2218 | redir.filename = (yyvsp[(3) - (3)].word); | |
2219 | (yyval.redirect) = make_redirection ((yyvsp[(1) - (3)].number), r_reading_string, redir); | |
2220 | } | |
2221 | break; | |
2222 | ||
2223 | case 18: | |
2224 | #line 473 "/Users/chet/src/bash/src/parse.y" | |
2225 | { | |
2226 | redir.dest = (yyvsp[(2) - (2)].number); | |
2227 | (yyval.redirect) = make_redirection (0, r_duplicating_input, redir); | |
2228 | } | |
2229 | break; | |
2230 | ||
2231 | case 19: | |
2232 | #line 478 "/Users/chet/src/bash/src/parse.y" | |
2233 | { | |
2234 | redir.dest = (yyvsp[(3) - (3)].number); | |
2235 | (yyval.redirect) = make_redirection ((yyvsp[(1) - (3)].number), r_duplicating_input, redir); | |
2236 | } | |
2237 | break; | |
2238 | ||
2239 | case 20: | |
2240 | #line 483 "/Users/chet/src/bash/src/parse.y" | |
2241 | { | |
2242 | redir.dest = (yyvsp[(2) - (2)].number); | |
2243 | (yyval.redirect) = make_redirection (1, r_duplicating_output, redir); | |
2244 | } | |
2245 | break; | |
2246 | ||
2247 | case 21: | |
2248 | #line 488 "/Users/chet/src/bash/src/parse.y" | |
2249 | { | |
2250 | redir.dest = (yyvsp[(3) - (3)].number); | |
2251 | (yyval.redirect) = make_redirection ((yyvsp[(1) - (3)].number), r_duplicating_output, redir); | |
2252 | } | |
2253 | break; | |
2254 | ||
2255 | case 22: | |
0628567a | 2256 | #line 493 "/Users/chet/src/bash/src/parse.y" |
3185942a JA |
2257 | { |
2258 | redir.filename = (yyvsp[(2) - (2)].word); | |
2259 | (yyval.redirect) = make_redirection (0, r_duplicating_input_word, redir); | |
2260 | } | |
2261 | break; | |
2262 | ||
2263 | case 23: | |
2264 | #line 498 "/Users/chet/src/bash/src/parse.y" | |
2265 | { | |
2266 | redir.filename = (yyvsp[(3) - (3)].word); | |
2267 | (yyval.redirect) = make_redirection ((yyvsp[(1) - (3)].number), r_duplicating_input_word, redir); | |
2268 | } | |
2269 | break; | |
2270 | ||
2271 | case 24: | |
2272 | #line 503 "/Users/chet/src/bash/src/parse.y" | |
2273 | { | |
2274 | redir.filename = (yyvsp[(2) - (2)].word); | |
2275 | (yyval.redirect) = make_redirection (1, r_duplicating_output_word, redir); | |
2276 | } | |
2277 | break; | |
2278 | ||
2279 | case 25: | |
2280 | #line 508 "/Users/chet/src/bash/src/parse.y" | |
2281 | { | |
2282 | redir.filename = (yyvsp[(3) - (3)].word); | |
2283 | (yyval.redirect) = make_redirection ((yyvsp[(1) - (3)].number), r_duplicating_output_word, redir); | |
2284 | } | |
2285 | break; | |
2286 | ||
2287 | case 26: | |
2288 | #line 513 "/Users/chet/src/bash/src/parse.y" | |
2289 | { | |
2290 | redir.filename = (yyvsp[(2) - (2)].word); | |
2291 | (yyval.redirect) = make_redirection | |
2292 | (0, r_deblank_reading_until, redir); | |
2293 | redir_stack[need_here_doc++] = (yyval.redirect); | |
2294 | } | |
2295 | break; | |
2296 | ||
2297 | case 27: | |
2298 | #line 520 "/Users/chet/src/bash/src/parse.y" | |
2299 | { | |
2300 | redir.filename = (yyvsp[(3) - (3)].word); | |
2301 | (yyval.redirect) = make_redirection | |
2302 | ((yyvsp[(1) - (3)].number), r_deblank_reading_until, redir); | |
2303 | redir_stack[need_here_doc++] = (yyval.redirect); | |
2304 | } | |
2305 | break; | |
2306 | ||
2307 | case 28: | |
2308 | #line 527 "/Users/chet/src/bash/src/parse.y" | |
2309 | { | |
f73dda09 | 2310 | redir.dest = 0; |
3185942a JA |
2311 | (yyval.redirect) = make_redirection (1, r_close_this, redir); |
2312 | } | |
2313 | break; | |
2314 | ||
2315 | case 29: | |
2316 | #line 532 "/Users/chet/src/bash/src/parse.y" | |
2317 | { | |
f73dda09 | 2318 | redir.dest = 0; |
3185942a JA |
2319 | (yyval.redirect) = make_redirection ((yyvsp[(1) - (3)].number), r_close_this, redir); |
2320 | } | |
2321 | break; | |
2322 | ||
2323 | case 30: | |
2324 | #line 537 "/Users/chet/src/bash/src/parse.y" | |
2325 | { | |
f73dda09 | 2326 | redir.dest = 0; |
3185942a JA |
2327 | (yyval.redirect) = make_redirection (0, r_close_this, redir); |
2328 | } | |
2329 | break; | |
2330 | ||
2331 | case 31: | |
2332 | #line 542 "/Users/chet/src/bash/src/parse.y" | |
2333 | { | |
f73dda09 | 2334 | redir.dest = 0; |
3185942a JA |
2335 | (yyval.redirect) = make_redirection ((yyvsp[(1) - (3)].number), r_close_this, redir); |
2336 | } | |
2337 | break; | |
2338 | ||
2339 | case 32: | |
0628567a | 2340 | #line 547 "/Users/chet/src/bash/src/parse.y" |
3185942a JA |
2341 | { |
2342 | redir.filename = (yyvsp[(2) - (2)].word); | |
2343 | (yyval.redirect) = make_redirection (1, r_err_and_out, redir); | |
2344 | } | |
2345 | break; | |
2346 | ||
2347 | case 33: | |
2348 | #line 552 "/Users/chet/src/bash/src/parse.y" | |
2349 | { | |
2350 | redir.filename = (yyvsp[(2) - (2)].word); | |
2351 | (yyval.redirect) = make_redirection (1, r_append_err_and_out, redir); | |
2352 | } | |
2353 | break; | |
2354 | ||
2355 | case 34: | |
2356 | #line 557 "/Users/chet/src/bash/src/parse.y" | |
2357 | { | |
2358 | redir.filename = (yyvsp[(3) - (3)].word); | |
2359 | (yyval.redirect) = make_redirection ((yyvsp[(1) - (3)].number), r_input_output, redir); | |
2360 | } | |
2361 | break; | |
2362 | ||
2363 | case 35: | |
2364 | #line 562 "/Users/chet/src/bash/src/parse.y" | |
2365 | { | |
2366 | redir.filename = (yyvsp[(2) - (2)].word); | |
2367 | (yyval.redirect) = make_redirection (0, r_input_output, redir); | |
2368 | } | |
2369 | break; | |
2370 | ||
2371 | case 36: | |
2372 | #line 567 "/Users/chet/src/bash/src/parse.y" | |
2373 | { | |
2374 | redir.filename = (yyvsp[(2) - (2)].word); | |
2375 | (yyval.redirect) = make_redirection (1, r_output_force, redir); | |
2376 | } | |
2377 | break; | |
2378 | ||
2379 | case 37: | |
2380 | #line 572 "/Users/chet/src/bash/src/parse.y" | |
2381 | { | |
2382 | redir.filename = (yyvsp[(3) - (3)].word); | |
2383 | (yyval.redirect) = make_redirection ((yyvsp[(1) - (3)].number), r_output_force, redir); | |
2384 | } | |
2385 | break; | |
2386 | ||
2387 | case 38: | |
2388 | #line 579 "/Users/chet/src/bash/src/parse.y" | |
2389 | { (yyval.element).word = (yyvsp[(1) - (1)].word); (yyval.element).redirect = 0; } | |
2390 | break; | |
2391 | ||
2392 | case 39: | |
2393 | #line 581 "/Users/chet/src/bash/src/parse.y" | |
2394 | { (yyval.element).word = (yyvsp[(1) - (1)].word); (yyval.element).redirect = 0; } | |
2395 | break; | |
2396 | ||
2397 | case 40: | |
2398 | #line 583 "/Users/chet/src/bash/src/parse.y" | |
2399 | { (yyval.element).redirect = (yyvsp[(1) - (1)].redirect); (yyval.element).word = 0; } | |
2400 | break; | |
2401 | ||
2402 | case 41: | |
2403 | #line 587 "/Users/chet/src/bash/src/parse.y" | |
2404 | { | |
2405 | (yyval.redirect) = (yyvsp[(1) - (1)].redirect); | |
2406 | } | |
2407 | break; | |
2408 | ||
2409 | case 42: | |
2410 | #line 591 "/Users/chet/src/bash/src/parse.y" | |
2411 | { | |
f73dda09 JA |
2412 | register REDIRECT *t; |
2413 | ||
3185942a | 2414 | for (t = (yyvsp[(1) - (2)].redirect); t->next; t = t->next) |
f73dda09 | 2415 | ; |
3185942a JA |
2416 | t->next = (yyvsp[(2) - (2)].redirect); |
2417 | (yyval.redirect) = (yyvsp[(1) - (2)].redirect); | |
2418 | } | |
2419 | break; | |
2420 | ||
2421 | case 43: | |
2422 | #line 602 "/Users/chet/src/bash/src/parse.y" | |
2423 | { (yyval.command) = make_simple_command ((yyvsp[(1) - (1)].element), (COMMAND *)NULL); } | |
2424 | break; | |
2425 | ||
2426 | case 44: | |
2427 | #line 604 "/Users/chet/src/bash/src/parse.y" | |
2428 | { (yyval.command) = make_simple_command ((yyvsp[(2) - (2)].element), (yyvsp[(1) - (2)].command)); } | |
2429 | break; | |
2430 | ||
2431 | case 45: | |
2432 | #line 608 "/Users/chet/src/bash/src/parse.y" | |
2433 | { (yyval.command) = clean_simple_command ((yyvsp[(1) - (1)].command)); } | |
2434 | break; | |
2435 | ||
2436 | case 46: | |
2437 | #line 610 "/Users/chet/src/bash/src/parse.y" | |
2438 | { (yyval.command) = (yyvsp[(1) - (1)].command); } | |
2439 | break; | |
2440 | ||
2441 | case 47: | |
2442 | #line 612 "/Users/chet/src/bash/src/parse.y" | |
2443 | { | |
f73dda09 JA |
2444 | COMMAND *tc; |
2445 | ||
3185942a | 2446 | tc = (yyvsp[(1) - (2)].command); |
f73dda09 JA |
2447 | if (tc->redirects) |
2448 | { | |
2449 | register REDIRECT *t; | |
2450 | for (t = tc->redirects; t->next; t = t->next) | |
2451 | ; | |
3185942a | 2452 | t->next = (yyvsp[(2) - (2)].redirect); |
f73dda09 JA |
2453 | } |
2454 | else | |
3185942a JA |
2455 | tc->redirects = (yyvsp[(2) - (2)].redirect); |
2456 | (yyval.command) = (yyvsp[(1) - (2)].command); | |
2457 | } | |
2458 | break; | |
2459 | ||
2460 | case 48: | |
2461 | #line 628 "/Users/chet/src/bash/src/parse.y" | |
2462 | { (yyval.command) = (yyvsp[(1) - (1)].command); } | |
2463 | break; | |
2464 | ||
2465 | case 49: | |
2466 | #line 630 "/Users/chet/src/bash/src/parse.y" | |
2467 | { (yyval.command) = (yyvsp[(1) - (1)].command); } | |
2468 | break; | |
2469 | ||
2470 | case 50: | |
2471 | #line 634 "/Users/chet/src/bash/src/parse.y" | |
2472 | { (yyval.command) = (yyvsp[(1) - (1)].command); } | |
2473 | break; | |
2474 | ||
2475 | case 51: | |
2476 | #line 636 "/Users/chet/src/bash/src/parse.y" | |
2477 | { (yyval.command) = (yyvsp[(1) - (1)].command); } | |
2478 | break; | |
2479 | ||
2480 | case 52: | |
2481 | #line 638 "/Users/chet/src/bash/src/parse.y" | |
2482 | { (yyval.command) = make_while_command ((yyvsp[(2) - (5)].command), (yyvsp[(4) - (5)].command)); } | |
2483 | break; | |
2484 | ||
2485 | case 53: | |
2486 | #line 640 "/Users/chet/src/bash/src/parse.y" | |
2487 | { (yyval.command) = make_until_command ((yyvsp[(2) - (5)].command), (yyvsp[(4) - (5)].command)); } | |
2488 | break; | |
2489 | ||
2490 | case 54: | |
2491 | #line 642 "/Users/chet/src/bash/src/parse.y" | |
2492 | { (yyval.command) = (yyvsp[(1) - (1)].command); } | |
2493 | break; | |
2494 | ||
2495 | case 55: | |
2496 | #line 644 "/Users/chet/src/bash/src/parse.y" | |
2497 | { (yyval.command) = (yyvsp[(1) - (1)].command); } | |
2498 | break; | |
2499 | ||
2500 | case 56: | |
2501 | #line 646 "/Users/chet/src/bash/src/parse.y" | |
2502 | { (yyval.command) = (yyvsp[(1) - (1)].command); } | |
2503 | break; | |
2504 | ||
2505 | case 57: | |
2506 | #line 648 "/Users/chet/src/bash/src/parse.y" | |
2507 | { (yyval.command) = (yyvsp[(1) - (1)].command); } | |
2508 | break; | |
2509 | ||
2510 | case 58: | |
2511 | #line 650 "/Users/chet/src/bash/src/parse.y" | |
2512 | { (yyval.command) = (yyvsp[(1) - (1)].command); } | |
2513 | break; | |
2514 | ||
2515 | case 59: | |
2516 | #line 652 "/Users/chet/src/bash/src/parse.y" | |
2517 | { (yyval.command) = (yyvsp[(1) - (1)].command); } | |
2518 | break; | |
2519 | ||
2520 | case 60: | |
2521 | #line 654 "/Users/chet/src/bash/src/parse.y" | |
2522 | { (yyval.command) = (yyvsp[(1) - (1)].command); } | |
2523 | break; | |
2524 | ||
2525 | case 61: | |
2526 | #line 658 "/Users/chet/src/bash/src/parse.y" | |
2527 | { | |
2528 | (yyval.command) = make_for_command ((yyvsp[(2) - (6)].word), add_string_to_list ("\"$@\"", (WORD_LIST *)NULL), (yyvsp[(5) - (6)].command), word_lineno[word_top]); | |
b80f6443 | 2529 | if (word_top > 0) word_top--; |
3185942a JA |
2530 | } |
2531 | break; | |
2532 | ||
2533 | case 62: | |
2534 | #line 663 "/Users/chet/src/bash/src/parse.y" | |
2535 | { | |
2536 | (yyval.command) = make_for_command ((yyvsp[(2) - (6)].word), add_string_to_list ("\"$@\"", (WORD_LIST *)NULL), (yyvsp[(5) - (6)].command), word_lineno[word_top]); | |
b80f6443 | 2537 | if (word_top > 0) word_top--; |
3185942a JA |
2538 | } |
2539 | break; | |
2540 | ||
2541 | case 63: | |
2542 | #line 668 "/Users/chet/src/bash/src/parse.y" | |
2543 | { | |
2544 | (yyval.command) = make_for_command ((yyvsp[(2) - (7)].word), add_string_to_list ("\"$@\"", (WORD_LIST *)NULL), (yyvsp[(6) - (7)].command), word_lineno[word_top]); | |
b80f6443 | 2545 | if (word_top > 0) word_top--; |
3185942a JA |
2546 | } |
2547 | break; | |
2548 | ||
2549 | case 64: | |
2550 | #line 673 "/Users/chet/src/bash/src/parse.y" | |
2551 | { | |
2552 | (yyval.command) = make_for_command ((yyvsp[(2) - (7)].word), add_string_to_list ("\"$@\"", (WORD_LIST *)NULL), (yyvsp[(6) - (7)].command), word_lineno[word_top]); | |
b80f6443 | 2553 | if (word_top > 0) word_top--; |
3185942a JA |
2554 | } |
2555 | break; | |
2556 | ||
2557 | case 65: | |
2558 | #line 678 "/Users/chet/src/bash/src/parse.y" | |
2559 | { | |
2560 | (yyval.command) = make_for_command ((yyvsp[(2) - (10)].word), REVERSE_LIST ((yyvsp[(5) - (10)].word_list), WORD_LIST *), (yyvsp[(9) - (10)].command), word_lineno[word_top]); | |
b80f6443 | 2561 | if (word_top > 0) word_top--; |
3185942a JA |
2562 | } |
2563 | break; | |
2564 | ||
2565 | case 66: | |
2566 | #line 683 "/Users/chet/src/bash/src/parse.y" | |
2567 | { | |
2568 | (yyval.command) = make_for_command ((yyvsp[(2) - (10)].word), REVERSE_LIST ((yyvsp[(5) - (10)].word_list), WORD_LIST *), (yyvsp[(9) - (10)].command), word_lineno[word_top]); | |
b80f6443 | 2569 | if (word_top > 0) word_top--; |
3185942a JA |
2570 | } |
2571 | break; | |
2572 | ||
2573 | case 67: | |
2574 | #line 688 "/Users/chet/src/bash/src/parse.y" | |
2575 | { | |
2576 | (yyval.command) = make_for_command ((yyvsp[(2) - (9)].word), (WORD_LIST *)NULL, (yyvsp[(8) - (9)].command), word_lineno[word_top]); | |
b80f6443 | 2577 | if (word_top > 0) word_top--; |
3185942a JA |
2578 | } |
2579 | break; | |
2580 | ||
2581 | case 68: | |
2582 | #line 693 "/Users/chet/src/bash/src/parse.y" | |
2583 | { | |
2584 | (yyval.command) = make_for_command ((yyvsp[(2) - (9)].word), (WORD_LIST *)NULL, (yyvsp[(8) - (9)].command), word_lineno[word_top]); | |
b80f6443 | 2585 | if (word_top > 0) word_top--; |
3185942a JA |
2586 | } |
2587 | break; | |
2588 | ||
2589 | case 69: | |
2590 | #line 700 "/Users/chet/src/bash/src/parse.y" | |
2591 | { | |
2592 | (yyval.command) = make_arith_for_command ((yyvsp[(2) - (7)].word_list), (yyvsp[(6) - (7)].command), arith_for_lineno); | |
b80f6443 | 2593 | if (word_top > 0) word_top--; |
3185942a JA |
2594 | } |
2595 | break; | |
2596 | ||
2597 | case 70: | |
2598 | #line 705 "/Users/chet/src/bash/src/parse.y" | |
2599 | { | |
2600 | (yyval.command) = make_arith_for_command ((yyvsp[(2) - (7)].word_list), (yyvsp[(6) - (7)].command), arith_for_lineno); | |
b80f6443 | 2601 | if (word_top > 0) word_top--; |
3185942a JA |
2602 | } |
2603 | break; | |
2604 | ||
2605 | case 71: | |
2606 | #line 710 "/Users/chet/src/bash/src/parse.y" | |
2607 | { | |
2608 | (yyval.command) = make_arith_for_command ((yyvsp[(2) - (5)].word_list), (yyvsp[(4) - (5)].command), arith_for_lineno); | |
b80f6443 | 2609 | if (word_top > 0) word_top--; |
3185942a JA |
2610 | } |
2611 | break; | |
2612 | ||
2613 | case 72: | |
2614 | #line 715 "/Users/chet/src/bash/src/parse.y" | |
2615 | { | |
2616 | (yyval.command) = make_arith_for_command ((yyvsp[(2) - (5)].word_list), (yyvsp[(4) - (5)].command), arith_for_lineno); | |
b80f6443 | 2617 | if (word_top > 0) word_top--; |
3185942a JA |
2618 | } |
2619 | break; | |
2620 | ||
2621 | case 73: | |
2622 | #line 722 "/Users/chet/src/bash/src/parse.y" | |
2623 | { | |
2624 | (yyval.command) = make_select_command ((yyvsp[(2) - (6)].word), add_string_to_list ("\"$@\"", (WORD_LIST *)NULL), (yyvsp[(5) - (6)].command), word_lineno[word_top]); | |
b80f6443 | 2625 | if (word_top > 0) word_top--; |
3185942a JA |
2626 | } |
2627 | break; | |
2628 | ||
2629 | case 74: | |
2630 | #line 727 "/Users/chet/src/bash/src/parse.y" | |
2631 | { | |
2632 | (yyval.command) = make_select_command ((yyvsp[(2) - (6)].word), add_string_to_list ("\"$@\"", (WORD_LIST *)NULL), (yyvsp[(5) - (6)].command), word_lineno[word_top]); | |
b80f6443 | 2633 | if (word_top > 0) word_top--; |
3185942a JA |
2634 | } |
2635 | break; | |
2636 | ||
2637 | case 75: | |
2638 | #line 732 "/Users/chet/src/bash/src/parse.y" | |
2639 | { | |
2640 | (yyval.command) = make_select_command ((yyvsp[(2) - (7)].word), add_string_to_list ("\"$@\"", (WORD_LIST *)NULL), (yyvsp[(6) - (7)].command), word_lineno[word_top]); | |
b80f6443 | 2641 | if (word_top > 0) word_top--; |
3185942a JA |
2642 | } |
2643 | break; | |
2644 | ||
2645 | case 76: | |
2646 | #line 737 "/Users/chet/src/bash/src/parse.y" | |
2647 | { | |
2648 | (yyval.command) = make_select_command ((yyvsp[(2) - (7)].word), add_string_to_list ("\"$@\"", (WORD_LIST *)NULL), (yyvsp[(6) - (7)].command), word_lineno[word_top]); | |
b80f6443 | 2649 | if (word_top > 0) word_top--; |
3185942a JA |
2650 | } |
2651 | break; | |
2652 | ||
2653 | case 77: | |
2654 | #line 742 "/Users/chet/src/bash/src/parse.y" | |
2655 | { | |
2656 | (yyval.command) = make_select_command ((yyvsp[(2) - (10)].word), REVERSE_LIST ((yyvsp[(5) - (10)].word_list), WORD_LIST *), (yyvsp[(9) - (10)].command), word_lineno[word_top]); | |
b80f6443 | 2657 | if (word_top > 0) word_top--; |
3185942a JA |
2658 | } |
2659 | break; | |
2660 | ||
2661 | case 78: | |
2662 | #line 747 "/Users/chet/src/bash/src/parse.y" | |
2663 | { | |
2664 | (yyval.command) = make_select_command ((yyvsp[(2) - (10)].word), REVERSE_LIST ((yyvsp[(5) - (10)].word_list), WORD_LIST *), (yyvsp[(9) - (10)].command), word_lineno[word_top]); | |
b80f6443 | 2665 | if (word_top > 0) word_top--; |
3185942a JA |
2666 | } |
2667 | break; | |
2668 | ||
2669 | case 79: | |
2670 | #line 754 "/Users/chet/src/bash/src/parse.y" | |
2671 | { | |
2672 | (yyval.command) = make_case_command ((yyvsp[(2) - (6)].word), (PATTERN_LIST *)NULL, word_lineno[word_top]); | |
b80f6443 | 2673 | if (word_top > 0) word_top--; |
3185942a JA |
2674 | } |
2675 | break; | |
2676 | ||
2677 | case 80: | |
2678 | #line 759 "/Users/chet/src/bash/src/parse.y" | |
2679 | { | |
2680 | (yyval.command) = make_case_command ((yyvsp[(2) - (7)].word), (yyvsp[(5) - (7)].pattern), word_lineno[word_top]); | |
b80f6443 | 2681 | if (word_top > 0) word_top--; |
3185942a JA |
2682 | } |
2683 | break; | |
2684 | ||
2685 | case 81: | |
2686 | #line 764 "/Users/chet/src/bash/src/parse.y" | |
2687 | { | |
2688 | (yyval.command) = make_case_command ((yyvsp[(2) - (6)].word), (yyvsp[(5) - (6)].pattern), word_lineno[word_top]); | |
b80f6443 | 2689 | if (word_top > 0) word_top--; |
3185942a JA |
2690 | } |
2691 | break; | |
2692 | ||
2693 | case 82: | |
2694 | #line 771 "/Users/chet/src/bash/src/parse.y" | |
2695 | { (yyval.command) = make_function_def ((yyvsp[(1) - (5)].word), (yyvsp[(5) - (5)].command), function_dstart, function_bstart); } | |
2696 | break; | |
2697 | ||
2698 | case 83: | |
2699 | #line 774 "/Users/chet/src/bash/src/parse.y" | |
2700 | { (yyval.command) = make_function_def ((yyvsp[(2) - (6)].word), (yyvsp[(6) - (6)].command), function_dstart, function_bstart); } | |
2701 | break; | |
2702 | ||
2703 | case 84: | |
2704 | #line 777 "/Users/chet/src/bash/src/parse.y" | |
2705 | { (yyval.command) = make_function_def ((yyvsp[(2) - (4)].word), (yyvsp[(4) - (4)].command), function_dstart, function_bstart); } | |
2706 | break; | |
2707 | ||
2708 | case 85: | |
2709 | #line 781 "/Users/chet/src/bash/src/parse.y" | |
2710 | { (yyval.command) = (yyvsp[(1) - (1)].command); } | |
2711 | break; | |
2712 | ||
2713 | case 86: | |
2714 | #line 783 "/Users/chet/src/bash/src/parse.y" | |
2715 | { | |
f73dda09 JA |
2716 | COMMAND *tc; |
2717 | ||
3185942a | 2718 | tc = (yyvsp[(1) - (2)].command); |
f73dda09 JA |
2719 | /* According to Posix.2 3.9.5, redirections |
2720 | specified after the body of a function should | |
2721 | be attached to the function and performed when | |
2722 | the function is executed, not as part of the | |
2723 | function definition command. */ | |
2724 | /* XXX - I don't think it matters, but we might | |
2725 | want to change this in the future to avoid | |
2726 | problems differentiating between a function | |
2727 | definition with a redirection and a function | |
2728 | definition containing a single command with a | |
2729 | redirection. The two are semantically equivalent, | |
2730 | though -- the only difference is in how the | |
2731 | command printing code displays the redirections. */ | |
2732 | if (tc->redirects) | |
2733 | { | |
2734 | register REDIRECT *t; | |
2735 | for (t = tc->redirects; t->next; t = t->next) | |
2736 | ; | |
3185942a | 2737 | t->next = (yyvsp[(2) - (2)].redirect); |
f73dda09 JA |
2738 | } |
2739 | else | |
3185942a JA |
2740 | tc->redirects = (yyvsp[(2) - (2)].redirect); |
2741 | (yyval.command) = (yyvsp[(1) - (2)].command); | |
2742 | } | |
2743 | break; | |
2744 | ||
2745 | case 87: | |
2746 | #line 814 "/Users/chet/src/bash/src/parse.y" | |
2747 | { | |
2748 | (yyval.command) = make_subshell_command ((yyvsp[(2) - (3)].command)); | |
2749 | (yyval.command)->flags |= CMD_WANT_SUBSHELL; | |
2750 | } | |
2751 | break; | |
2752 | ||
2753 | case 88: | |
2754 | #line 821 "/Users/chet/src/bash/src/parse.y" | |
2755 | { | |
2756 | (yyval.command) = make_coproc_command ("COPROC", (yyvsp[(2) - (2)].command)); | |
2757 | (yyval.command)->flags |= CMD_WANT_SUBSHELL|CMD_COPROC_SUBSHELL; | |
2758 | } | |
2759 | break; | |
2760 | ||
2761 | case 89: | |
0628567a | 2762 | #line 826 "/Users/chet/src/bash/src/parse.y" |
3185942a JA |
2763 | { |
2764 | COMMAND *tc; | |
2765 | ||
2766 | tc = (yyvsp[(2) - (3)].command); | |
2767 | if (tc->redirects) | |
2768 | { | |
2769 | register REDIRECT *t; | |
2770 | for (t = tc->redirects; t->next; t = t->next) | |
2771 | ; | |
2772 | t->next = (yyvsp[(3) - (3)].redirect); | |
2773 | } | |
2774 | else | |
2775 | tc->redirects = (yyvsp[(3) - (3)].redirect); | |
2776 | (yyval.command) = make_coproc_command ("COPROC", (yyvsp[(2) - (3)].command)); | |
2777 | (yyval.command)->flags |= CMD_WANT_SUBSHELL|CMD_COPROC_SUBSHELL; | |
2778 | } | |
2779 | break; | |
2780 | ||
2781 | case 90: | |
2782 | #line 843 "/Users/chet/src/bash/src/parse.y" | |
2783 | { | |
2784 | (yyval.command) = make_coproc_command ((yyvsp[(2) - (3)].word)->word, (yyvsp[(3) - (3)].command)); | |
2785 | (yyval.command)->flags |= CMD_WANT_SUBSHELL|CMD_COPROC_SUBSHELL; | |
2786 | } | |
2787 | break; | |
2788 | ||
2789 | case 91: | |
0628567a | 2790 | #line 848 "/Users/chet/src/bash/src/parse.y" |
3185942a JA |
2791 | { |
2792 | COMMAND *tc; | |
2793 | ||
2794 | tc = (yyvsp[(3) - (4)].command); | |
2795 | if (tc->redirects) | |
2796 | { | |
2797 | register REDIRECT *t; | |
2798 | for (t = tc->redirects; t->next; t = t->next) | |
2799 | ; | |
2800 | t->next = (yyvsp[(4) - (4)].redirect); | |
2801 | } | |
2802 | else | |
2803 | tc->redirects = (yyvsp[(4) - (4)].redirect); | |
2804 | (yyval.command) = make_coproc_command ((yyvsp[(2) - (4)].word)->word, (yyvsp[(3) - (4)].command)); | |
2805 | (yyval.command)->flags |= CMD_WANT_SUBSHELL|CMD_COPROC_SUBSHELL; | |
2806 | } | |
2807 | break; | |
2808 | ||
2809 | case 92: | |
2810 | #line 865 "/Users/chet/src/bash/src/parse.y" | |
2811 | { | |
2812 | (yyval.command) = make_coproc_command ("COPROC", clean_simple_command ((yyvsp[(2) - (2)].command))); | |
2813 | (yyval.command)->flags |= CMD_WANT_SUBSHELL|CMD_COPROC_SUBSHELL; | |
2814 | } | |
2815 | break; | |
2816 | ||
2817 | case 93: | |
2818 | #line 872 "/Users/chet/src/bash/src/parse.y" | |
2819 | { (yyval.command) = make_if_command ((yyvsp[(2) - (5)].command), (yyvsp[(4) - (5)].command), (COMMAND *)NULL); } | |
2820 | break; | |
2821 | ||
2822 | case 94: | |
2823 | #line 874 "/Users/chet/src/bash/src/parse.y" | |
2824 | { (yyval.command) = make_if_command ((yyvsp[(2) - (7)].command), (yyvsp[(4) - (7)].command), (yyvsp[(6) - (7)].command)); } | |
2825 | break; | |
2826 | ||
2827 | case 95: | |
2828 | #line 876 "/Users/chet/src/bash/src/parse.y" | |
2829 | { (yyval.command) = make_if_command ((yyvsp[(2) - (6)].command), (yyvsp[(4) - (6)].command), (yyvsp[(5) - (6)].command)); } | |
2830 | break; | |
2831 | ||
2832 | case 96: | |
2833 | #line 881 "/Users/chet/src/bash/src/parse.y" | |
2834 | { (yyval.command) = make_group_command ((yyvsp[(2) - (3)].command)); } | |
2835 | break; | |
2836 | ||
2837 | case 97: | |
2838 | #line 885 "/Users/chet/src/bash/src/parse.y" | |
2839 | { (yyval.command) = make_arith_command ((yyvsp[(1) - (1)].word_list)); } | |
2840 | break; | |
2841 | ||
2842 | case 98: | |
2843 | #line 889 "/Users/chet/src/bash/src/parse.y" | |
2844 | { (yyval.command) = (yyvsp[(2) - (3)].command); } | |
2845 | break; | |
2846 | ||
2847 | case 99: | |
2848 | #line 893 "/Users/chet/src/bash/src/parse.y" | |
2849 | { (yyval.command) = make_if_command ((yyvsp[(2) - (4)].command), (yyvsp[(4) - (4)].command), (COMMAND *)NULL); } | |
2850 | break; | |
2851 | ||
2852 | case 100: | |
2853 | #line 895 "/Users/chet/src/bash/src/parse.y" | |
2854 | { (yyval.command) = make_if_command ((yyvsp[(2) - (6)].command), (yyvsp[(4) - (6)].command), (yyvsp[(6) - (6)].command)); } | |
2855 | break; | |
2856 | ||
2857 | case 101: | |
2858 | #line 897 "/Users/chet/src/bash/src/parse.y" | |
2859 | { (yyval.command) = make_if_command ((yyvsp[(2) - (5)].command), (yyvsp[(4) - (5)].command), (yyvsp[(5) - (5)].command)); } | |
2860 | break; | |
2861 | ||
2862 | case 103: | |
2863 | #line 902 "/Users/chet/src/bash/src/parse.y" | |
2864 | { (yyvsp[(2) - (2)].pattern)->next = (yyvsp[(1) - (2)].pattern); (yyval.pattern) = (yyvsp[(2) - (2)].pattern); } | |
2865 | break; | |
2866 | ||
2867 | case 104: | |
2868 | #line 906 "/Users/chet/src/bash/src/parse.y" | |
2869 | { (yyval.pattern) = make_pattern_list ((yyvsp[(2) - (4)].word_list), (yyvsp[(4) - (4)].command)); } | |
2870 | break; | |
2871 | ||
2872 | case 105: | |
2873 | #line 908 "/Users/chet/src/bash/src/parse.y" | |
2874 | { (yyval.pattern) = make_pattern_list ((yyvsp[(2) - (4)].word_list), (COMMAND *)NULL); } | |
2875 | break; | |
2876 | ||
2877 | case 106: | |
2878 | #line 910 "/Users/chet/src/bash/src/parse.y" | |
2879 | { (yyval.pattern) = make_pattern_list ((yyvsp[(3) - (5)].word_list), (yyvsp[(5) - (5)].command)); } | |
2880 | break; | |
2881 | ||
2882 | case 107: | |
2883 | #line 912 "/Users/chet/src/bash/src/parse.y" | |
2884 | { (yyval.pattern) = make_pattern_list ((yyvsp[(3) - (5)].word_list), (COMMAND *)NULL); } | |
2885 | break; | |
2886 | ||
2887 | case 108: | |
2888 | #line 916 "/Users/chet/src/bash/src/parse.y" | |
2889 | { (yyval.pattern) = (yyvsp[(1) - (2)].pattern); } | |
2890 | break; | |
2891 | ||
2892 | case 109: | |
2893 | #line 918 "/Users/chet/src/bash/src/parse.y" | |
2894 | { (yyvsp[(2) - (3)].pattern)->next = (yyvsp[(1) - (3)].pattern); (yyval.pattern) = (yyvsp[(2) - (3)].pattern); } | |
2895 | break; | |
2896 | ||
2897 | case 110: | |
2898 | #line 920 "/Users/chet/src/bash/src/parse.y" | |
2899 | { (yyvsp[(1) - (2)].pattern)->flags |= CASEPAT_FALLTHROUGH; (yyval.pattern) = (yyvsp[(1) - (2)].pattern); } | |
2900 | break; | |
2901 | ||
2902 | case 111: | |
2903 | #line 922 "/Users/chet/src/bash/src/parse.y" | |
2904 | { (yyvsp[(2) - (3)].pattern)->flags |= CASEPAT_FALLTHROUGH; (yyvsp[(2) - (3)].pattern)->next = (yyvsp[(1) - (3)].pattern); (yyval.pattern) = (yyvsp[(2) - (3)].pattern); } | |
2905 | break; | |
2906 | ||
2907 | case 112: | |
2908 | #line 924 "/Users/chet/src/bash/src/parse.y" | |
2909 | { (yyvsp[(1) - (2)].pattern)->flags |= CASEPAT_TESTNEXT; (yyval.pattern) = (yyvsp[(1) - (2)].pattern); } | |
2910 | break; | |
2911 | ||
2912 | case 113: | |
2913 | #line 926 "/Users/chet/src/bash/src/parse.y" | |
2914 | { (yyvsp[(2) - (3)].pattern)->flags |= CASEPAT_TESTNEXT; (yyvsp[(2) - (3)].pattern)->next = (yyvsp[(1) - (3)].pattern); (yyval.pattern) = (yyvsp[(2) - (3)].pattern); } | |
2915 | break; | |
2916 | ||
2917 | case 114: | |
2918 | #line 930 "/Users/chet/src/bash/src/parse.y" | |
2919 | { (yyval.word_list) = make_word_list ((yyvsp[(1) - (1)].word), (WORD_LIST *)NULL); } | |
2920 | break; | |
2921 | ||
2922 | case 115: | |
2923 | #line 932 "/Users/chet/src/bash/src/parse.y" | |
2924 | { (yyval.word_list) = make_word_list ((yyvsp[(3) - (3)].word), (yyvsp[(1) - (3)].word_list)); } | |
2925 | break; | |
2926 | ||
2927 | case 116: | |
2928 | #line 941 "/Users/chet/src/bash/src/parse.y" | |
2929 | { | |
2930 | (yyval.command) = (yyvsp[(2) - (2)].command); | |
f73dda09 JA |
2931 | if (need_here_doc) |
2932 | gather_here_documents (); | |
3185942a JA |
2933 | } |
2934 | break; | |
2935 | ||
2936 | case 118: | |
2937 | #line 950 "/Users/chet/src/bash/src/parse.y" | |
2938 | { | |
2939 | (yyval.command) = (yyvsp[(2) - (2)].command); | |
2940 | } | |
2941 | break; | |
2942 | ||
2943 | case 120: | |
2944 | #line 957 "/Users/chet/src/bash/src/parse.y" | |
2945 | { | |
2946 | if ((yyvsp[(1) - (3)].command)->type == cm_connection) | |
2947 | (yyval.command) = connect_async_list ((yyvsp[(1) - (3)].command), (COMMAND *)NULL, '&'); | |
f73dda09 | 2948 | else |
3185942a JA |
2949 | (yyval.command) = command_connect ((yyvsp[(1) - (3)].command), (COMMAND *)NULL, '&'); |
2950 | } | |
2951 | break; | |
2952 | ||
2953 | case 122: | |
2954 | #line 968 "/Users/chet/src/bash/src/parse.y" | |
2955 | { (yyval.command) = command_connect ((yyvsp[(1) - (4)].command), (yyvsp[(4) - (4)].command), AND_AND); } | |
2956 | break; | |
2957 | ||
2958 | case 123: | |
2959 | #line 970 "/Users/chet/src/bash/src/parse.y" | |
2960 | { (yyval.command) = command_connect ((yyvsp[(1) - (4)].command), (yyvsp[(4) - (4)].command), OR_OR); } | |
2961 | break; | |
2962 | ||
2963 | case 124: | |
2964 | #line 972 "/Users/chet/src/bash/src/parse.y" | |
2965 | { | |
2966 | if ((yyvsp[(1) - (4)].command)->type == cm_connection) | |
2967 | (yyval.command) = connect_async_list ((yyvsp[(1) - (4)].command), (yyvsp[(4) - (4)].command), '&'); | |
f73dda09 | 2968 | else |
3185942a JA |
2969 | (yyval.command) = command_connect ((yyvsp[(1) - (4)].command), (yyvsp[(4) - (4)].command), '&'); |
2970 | } | |
2971 | break; | |
2972 | ||
2973 | case 125: | |
2974 | #line 979 "/Users/chet/src/bash/src/parse.y" | |
2975 | { (yyval.command) = command_connect ((yyvsp[(1) - (4)].command), (yyvsp[(4) - (4)].command), ';'); } | |
2976 | break; | |
2977 | ||
2978 | case 126: | |
2979 | #line 981 "/Users/chet/src/bash/src/parse.y" | |
2980 | { (yyval.command) = command_connect ((yyvsp[(1) - (4)].command), (yyvsp[(4) - (4)].command), ';'); } | |
2981 | break; | |
2982 | ||
2983 | case 127: | |
2984 | #line 983 "/Users/chet/src/bash/src/parse.y" | |
2985 | { (yyval.command) = (yyvsp[(1) - (1)].command); } | |
2986 | break; | |
2987 | ||
2988 | case 130: | |
2989 | #line 991 "/Users/chet/src/bash/src/parse.y" | |
2990 | { (yyval.number) = '\n'; } | |
2991 | break; | |
2992 | ||
2993 | case 131: | |
2994 | #line 993 "/Users/chet/src/bash/src/parse.y" | |
2995 | { (yyval.number) = ';'; } | |
2996 | break; | |
2997 | ||
2998 | case 132: | |
2999 | #line 995 "/Users/chet/src/bash/src/parse.y" | |
3000 | { (yyval.number) = yacc_EOF; } | |
3001 | break; | |
3002 | ||
3003 | case 135: | |
3004 | #line 1009 "/Users/chet/src/bash/src/parse.y" | |
3005 | { | |
3006 | (yyval.command) = (yyvsp[(1) - (1)].command); | |
f73dda09 JA |
3007 | if (need_here_doc) |
3008 | gather_here_documents (); | |
3185942a JA |
3009 | if ((parser_state & PST_CMDSUBST) && current_token == shell_eof_token) |
3010 | { | |
3011 | global_command = (yyvsp[(1) - (1)].command); | |
3012 | eof_encountered = 0; | |
3013 | rewind_input_string (); | |
3014 | YYACCEPT; | |
3015 | } | |
3016 | } | |
3017 | break; | |
3018 | ||
3019 | case 136: | |
3020 | #line 1022 "/Users/chet/src/bash/src/parse.y" | |
3021 | { | |
3022 | if ((yyvsp[(1) - (2)].command)->type == cm_connection) | |
3023 | (yyval.command) = connect_async_list ((yyvsp[(1) - (2)].command), (COMMAND *)NULL, '&'); | |
f73dda09 | 3024 | else |
3185942a | 3025 | (yyval.command) = command_connect ((yyvsp[(1) - (2)].command), (COMMAND *)NULL, '&'); |
f73dda09 JA |
3026 | if (need_here_doc) |
3027 | gather_here_documents (); | |
3185942a JA |
3028 | if ((parser_state & PST_CMDSUBST) && current_token == shell_eof_token) |
3029 | { | |
3030 | global_command = (yyvsp[(1) - (2)].command); | |
3031 | eof_encountered = 0; | |
3032 | rewind_input_string (); | |
3033 | YYACCEPT; | |
3034 | } | |
3035 | } | |
3036 | break; | |
3037 | ||
3038 | case 137: | |
3039 | #line 1038 "/Users/chet/src/bash/src/parse.y" | |
3040 | { | |
3041 | (yyval.command) = (yyvsp[(1) - (2)].command); | |
f73dda09 JA |
3042 | if (need_here_doc) |
3043 | gather_here_documents (); | |
3185942a JA |
3044 | if ((parser_state & PST_CMDSUBST) && current_token == shell_eof_token) |
3045 | { | |
3046 | global_command = (yyvsp[(1) - (2)].command); | |
3047 | eof_encountered = 0; | |
3048 | rewind_input_string (); | |
3049 | YYACCEPT; | |
3050 | } | |
3051 | } | |
3052 | break; | |
3053 | ||
3054 | case 138: | |
3055 | #line 1053 "/Users/chet/src/bash/src/parse.y" | |
3056 | { (yyval.command) = command_connect ((yyvsp[(1) - (4)].command), (yyvsp[(4) - (4)].command), AND_AND); } | |
3057 | break; | |
3058 | ||
3059 | case 139: | |
3060 | #line 1055 "/Users/chet/src/bash/src/parse.y" | |
3061 | { (yyval.command) = command_connect ((yyvsp[(1) - (4)].command), (yyvsp[(4) - (4)].command), OR_OR); } | |
3062 | break; | |
3063 | ||
3064 | case 140: | |
3065 | #line 1057 "/Users/chet/src/bash/src/parse.y" | |
3066 | { | |
3067 | if ((yyvsp[(1) - (3)].command)->type == cm_connection) | |
3068 | (yyval.command) = connect_async_list ((yyvsp[(1) - (3)].command), (yyvsp[(3) - (3)].command), '&'); | |
f73dda09 | 3069 | else |
3185942a JA |
3070 | (yyval.command) = command_connect ((yyvsp[(1) - (3)].command), (yyvsp[(3) - (3)].command), '&'); |
3071 | } | |
3072 | break; | |
3073 | ||
3074 | case 141: | |
3075 | #line 1064 "/Users/chet/src/bash/src/parse.y" | |
3076 | { (yyval.command) = command_connect ((yyvsp[(1) - (3)].command), (yyvsp[(3) - (3)].command), ';'); } | |
3077 | break; | |
3078 | ||
3079 | case 142: | |
3080 | #line 1067 "/Users/chet/src/bash/src/parse.y" | |
3081 | { (yyval.command) = (yyvsp[(1) - (1)].command); } | |
3082 | break; | |
3083 | ||
3084 | case 143: | |
3085 | #line 1071 "/Users/chet/src/bash/src/parse.y" | |
3086 | { (yyval.command) = (yyvsp[(1) - (1)].command); } | |
3087 | break; | |
3088 | ||
3089 | case 144: | |
3090 | #line 1073 "/Users/chet/src/bash/src/parse.y" | |
3091 | { | |
3092 | if ((yyvsp[(2) - (2)].command)) | |
3093 | (yyvsp[(2) - (2)].command)->flags |= CMD_INVERT_RETURN; | |
3094 | (yyval.command) = (yyvsp[(2) - (2)].command); | |
3095 | } | |
3096 | break; | |
3097 | ||
3098 | case 145: | |
3099 | #line 1079 "/Users/chet/src/bash/src/parse.y" | |
3100 | { | |
3101 | if ((yyvsp[(2) - (2)].command)) | |
3102 | (yyvsp[(2) - (2)].command)->flags |= (yyvsp[(1) - (2)].number); | |
3103 | (yyval.command) = (yyvsp[(2) - (2)].command); | |
3104 | } | |
3105 | break; | |
3106 | ||
3107 | case 146: | |
3108 | #line 1085 "/Users/chet/src/bash/src/parse.y" | |
3109 | { | |
3110 | if ((yyvsp[(3) - (3)].command)) | |
3111 | (yyvsp[(3) - (3)].command)->flags |= (yyvsp[(1) - (3)].number)|CMD_INVERT_RETURN; | |
3112 | (yyval.command) = (yyvsp[(3) - (3)].command); | |
3113 | } | |
3114 | break; | |
3115 | ||
3116 | case 147: | |
3117 | #line 1091 "/Users/chet/src/bash/src/parse.y" | |
3118 | { | |
3119 | if ((yyvsp[(3) - (3)].command)) | |
3120 | (yyvsp[(3) - (3)].command)->flags |= (yyvsp[(2) - (3)].number)|CMD_INVERT_RETURN; | |
3121 | (yyval.command) = (yyvsp[(3) - (3)].command); | |
3122 | } | |
3123 | break; | |
3124 | ||
3125 | case 148: | |
3126 | #line 1097 "/Users/chet/src/bash/src/parse.y" | |
3127 | { | |
b80f6443 JA |
3128 | ELEMENT x; |
3129 | ||
3130 | /* Boy, this is unclean. `time' by itself can | |
3131 | time a null command. We cheat and push a | |
3132 | newline back if the list_terminator was a newline | |
3133 | to avoid the double-newline problem (one to | |
3134 | terminate this, one to terminate the command) */ | |
3135 | x.word = 0; | |
3136 | x.redirect = 0; | |
3185942a JA |
3137 | (yyval.command) = make_simple_command (x, (COMMAND *)NULL); |
3138 | (yyval.command)->flags |= (yyvsp[(1) - (2)].number); | |
b80f6443 | 3139 | /* XXX - let's cheat and push a newline back */ |
3185942a | 3140 | if ((yyvsp[(2) - (2)].number) == '\n') |
b80f6443 | 3141 | token_to_read = '\n'; |
3185942a JA |
3142 | } |
3143 | break; | |
f73dda09 | 3144 | |
3185942a JA |
3145 | case 149: |
3146 | #line 1117 "/Users/chet/src/bash/src/parse.y" | |
3147 | { (yyval.command) = command_connect ((yyvsp[(1) - (4)].command), (yyvsp[(4) - (4)].command), '|'); } | |
3148 | break; | |
3149 | ||
3150 | case 150: | |
3151 | #line 1119 "/Users/chet/src/bash/src/parse.y" | |
f73dda09 | 3152 | { |
3185942a JA |
3153 | /* Make cmd1 |& cmd2 equivalent to cmd1 2>&1 | cmd2 */ |
3154 | COMMAND *tc; | |
3155 | REDIRECTEE rd; | |
3156 | REDIRECT *r; | |
3157 | ||
3158 | tc = (yyvsp[(1) - (4)].command); | |
3159 | rd.dest = 1; | |
3160 | r = make_redirection (2, r_duplicating_output, rd); | |
3161 | if (tc->redirects) | |
3162 | { | |
3163 | register REDIRECT *t; | |
3164 | for (t = tc->redirects; t->next; t = t->next) | |
3165 | ; | |
3166 | t->next = r; | |
3167 | } | |
3168 | else | |
3169 | tc->redirects = r; | |
3170 | ||
3171 | (yyval.command) = command_connect ((yyvsp[(1) - (4)].command), (yyvsp[(4) - (4)].command), '|'); | |
3172 | } | |
3173 | break; | |
3174 | ||
3175 | case 151: | |
3176 | #line 1141 "/Users/chet/src/bash/src/parse.y" | |
3177 | { (yyval.command) = (yyvsp[(1) - (1)].command); } | |
3178 | break; | |
3179 | ||
3180 | case 152: | |
3181 | #line 1145 "/Users/chet/src/bash/src/parse.y" | |
3182 | { (yyval.number) = CMD_TIME_PIPELINE; } | |
3183 | break; | |
3184 | ||
3185 | case 153: | |
3186 | #line 1147 "/Users/chet/src/bash/src/parse.y" | |
3187 | { (yyval.number) = CMD_TIME_PIPELINE|CMD_TIME_POSIX; } | |
3188 | break; | |
3189 | ||
3190 | ||
3191 | /* Line 1267 of yacc.c. */ | |
3192 | #line 3193 "y.tab.c" | |
3193 | default: break; | |
f73dda09 | 3194 | } |
3185942a JA |
3195 | YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc); |
3196 | ||
3197 | YYPOPSTACK (yylen); | |
3198 | yylen = 0; | |
3199 | YY_STACK_PRINT (yyss, yyssp); | |
f73dda09 JA |
3200 | |
3201 | *++yyvsp = yyval; | |
b80f6443 | 3202 | |
f73dda09 | 3203 | |
3185942a JA |
3204 | /* Now `shift' the result of the reduction. Determine what state |
3205 | that goes to, based on the state we popped back to and the rule | |
3206 | number reduced by. */ | |
f73dda09 JA |
3207 | |
3208 | yyn = yyr1[yyn]; | |
3209 | ||
3185942a JA |
3210 | yystate = yypgoto[yyn - YYNTOKENS] + *yyssp; |
3211 | if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp) | |
f73dda09 JA |
3212 | yystate = yytable[yystate]; |
3213 | else | |
3185942a | 3214 | yystate = yydefgoto[yyn - YYNTOKENS]; |
f73dda09 JA |
3215 | |
3216 | goto yynewstate; | |
3217 | ||
f73dda09 | 3218 | |
3185942a JA |
3219 | /*------------------------------------. |
3220 | | yyerrlab -- here on detecting error | | |
3221 | `------------------------------------*/ | |
3222 | yyerrlab: | |
3223 | /* If not already recovering from an error, report this error. */ | |
3224 | if (!yyerrstatus) | |
f73dda09 JA |
3225 | { |
3226 | ++yynerrs; | |
3185942a JA |
3227 | #if ! YYERROR_VERBOSE |
3228 | yyerror (YY_("syntax error")); | |
3229 | #else | |
3230 | { | |
3231 | YYSIZE_T yysize = yysyntax_error (0, yystate, yychar); | |
3232 | if (yymsg_alloc < yysize && yymsg_alloc < YYSTACK_ALLOC_MAXIMUM) | |
3233 | { | |
3234 | YYSIZE_T yyalloc = 2 * yysize; | |
3235 | if (! (yysize <= yyalloc && yyalloc <= YYSTACK_ALLOC_MAXIMUM)) | |
3236 | yyalloc = YYSTACK_ALLOC_MAXIMUM; | |
3237 | if (yymsg != yymsgbuf) | |
3238 | YYSTACK_FREE (yymsg); | |
3239 | yymsg = (char *) YYSTACK_ALLOC (yyalloc); | |
3240 | if (yymsg) | |
3241 | yymsg_alloc = yyalloc; | |
3242 | else | |
3243 | { | |
3244 | yymsg = yymsgbuf; | |
3245 | yymsg_alloc = sizeof yymsgbuf; | |
3246 | } | |
3247 | } | |
f73dda09 | 3248 | |
3185942a JA |
3249 | if (0 < yysize && yysize <= yymsg_alloc) |
3250 | { | |
3251 | (void) yysyntax_error (yymsg, yystate, yychar); | |
3252 | yyerror (yymsg); | |
3253 | } | |
3254 | else | |
3255 | { | |
3256 | yyerror (YY_("syntax error")); | |
3257 | if (yysize != 0) | |
3258 | goto yyexhaustedlab; | |
3259 | } | |
3260 | } | |
3261 | #endif | |
f73dda09 | 3262 | } |
f73dda09 | 3263 | |
3185942a | 3264 | |
7117c2d2 | 3265 | |
f73dda09 JA |
3266 | if (yyerrstatus == 3) |
3267 | { | |
3185942a JA |
3268 | /* If just tried and failed to reuse look-ahead token after an |
3269 | error, discard it. */ | |
b80f6443 | 3270 | |
3185942a JA |
3271 | if (yychar <= YYEOF) |
3272 | { | |
3273 | /* Return failure if at end of input. */ | |
3274 | if (yychar == YYEOF) | |
3275 | YYABORT; | |
3276 | } | |
3277 | else | |
3278 | { | |
3279 | yydestruct ("Error: discarding", | |
3280 | yytoken, &yylval); | |
3281 | yychar = YYEMPTY; | |
3282 | } | |
f73dda09 JA |
3283 | } |
3284 | ||
3185942a JA |
3285 | /* Else will try to reuse look-ahead token after shifting the error |
3286 | token. */ | |
3287 | goto yyerrlab1; | |
f73dda09 | 3288 | |
f73dda09 | 3289 | |
3185942a JA |
3290 | /*---------------------------------------------------. |
3291 | | yyerrorlab -- error raised explicitly by YYERROR. | | |
3292 | `---------------------------------------------------*/ | |
3293 | yyerrorlab: | |
f73dda09 | 3294 | |
3185942a JA |
3295 | /* Pacify compilers like GCC when the user code never invokes |
3296 | YYERROR and the label yyerrorlab therefore never appears in user | |
3297 | code. */ | |
3298 | if (/*CONSTCOND*/ 0) | |
3299 | goto yyerrorlab; | |
f73dda09 | 3300 | |
3185942a JA |
3301 | /* Do not reclaim the symbols of the rule which action triggered |
3302 | this YYERROR. */ | |
3303 | YYPOPSTACK (yylen); | |
3304 | yylen = 0; | |
3305 | YY_STACK_PRINT (yyss, yyssp); | |
3306 | yystate = *yyssp; | |
3307 | goto yyerrlab1; | |
f73dda09 | 3308 | |
f73dda09 | 3309 | |
3185942a JA |
3310 | /*-------------------------------------------------------------. |
3311 | | yyerrlab1 -- common code for both syntax error and YYERROR. | | |
3312 | `-------------------------------------------------------------*/ | |
3313 | yyerrlab1: | |
3314 | yyerrstatus = 3; /* Each real token shifted decrements this. */ | |
f73dda09 | 3315 | |
3185942a | 3316 | for (;;) |
f73dda09 | 3317 | { |
3185942a JA |
3318 | yyn = yypact[yystate]; |
3319 | if (yyn != YYPACT_NINF) | |
3320 | { | |
3321 | yyn += YYTERROR; | |
3322 | if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR) | |
3323 | { | |
3324 | yyn = yytable[yyn]; | |
3325 | if (0 < yyn) | |
3326 | break; | |
3327 | } | |
3328 | } | |
b80f6443 | 3329 | |
3185942a JA |
3330 | /* Pop the current state because it cannot handle the error token. */ |
3331 | if (yyssp == yyss) | |
3332 | YYABORT; | |
f73dda09 | 3333 | |
f73dda09 | 3334 | |
3185942a JA |
3335 | yydestruct ("Error: popping", |
3336 | yystos[yystate], yyvsp); | |
3337 | YYPOPSTACK (1); | |
3338 | yystate = *yyssp; | |
3339 | YY_STACK_PRINT (yyss, yyssp); | |
f73dda09 | 3340 | } |
f73dda09 JA |
3341 | |
3342 | if (yyn == YYFINAL) | |
3343 | YYACCEPT; | |
3344 | ||
f73dda09 | 3345 | *++yyvsp = yylval; |
3185942a JA |
3346 | |
3347 | ||
3348 | /* Shift the error token. */ | |
3349 | YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp); | |
f73dda09 JA |
3350 | |
3351 | yystate = yyn; | |
3352 | goto yynewstate; | |
3353 | ||
3185942a JA |
3354 | |
3355 | /*-------------------------------------. | |
3356 | | yyacceptlab -- YYACCEPT comes here. | | |
3357 | `-------------------------------------*/ | |
3358 | yyacceptlab: | |
3359 | yyresult = 0; | |
3360 | goto yyreturn; | |
3361 | ||
3362 | /*-----------------------------------. | |
3363 | | yyabortlab -- YYABORT comes here. | | |
3364 | `-----------------------------------*/ | |
3365 | yyabortlab: | |
3366 | yyresult = 1; | |
3367 | goto yyreturn; | |
3368 | ||
3369 | #ifndef yyoverflow | |
3370 | /*-------------------------------------------------. | |
3371 | | yyexhaustedlab -- memory exhaustion comes here. | | |
3372 | `-------------------------------------------------*/ | |
3373 | yyexhaustedlab: | |
3374 | yyerror (YY_("memory exhausted")); | |
3375 | yyresult = 2; | |
3376 | /* Fall through. */ | |
b80f6443 | 3377 | #endif |
f73dda09 | 3378 | |
3185942a JA |
3379 | yyreturn: |
3380 | if (yychar != YYEOF && yychar != YYEMPTY) | |
3381 | yydestruct ("Cleanup: discarding lookahead", | |
3382 | yytoken, &yylval); | |
3383 | /* Do not reclaim the symbols of the rule which action triggered | |
3384 | this YYABORT or YYACCEPT. */ | |
3385 | YYPOPSTACK (yylen); | |
3386 | YY_STACK_PRINT (yyss, yyssp); | |
3387 | while (yyssp != yyss) | |
b80f6443 | 3388 | { |
3185942a JA |
3389 | yydestruct ("Cleanup: popping", |
3390 | yystos[*yyssp], yyvsp); | |
3391 | YYPOPSTACK (1); | |
b80f6443 | 3392 | } |
3185942a JA |
3393 | #ifndef yyoverflow |
3394 | if (yyss != yyssa) | |
3395 | YYSTACK_FREE (yyss); | |
3396 | #endif | |
3397 | #if YYERROR_VERBOSE | |
3398 | if (yymsg != yymsgbuf) | |
3399 | YYSTACK_FREE (yymsg); | |
3400 | #endif | |
3401 | /* Make sure YYID is used. */ | |
3402 | return YYID (yyresult); | |
f73dda09 | 3403 | } |
3185942a JA |
3404 | |
3405 | ||
3406 | #line 1149 "/Users/chet/src/bash/src/parse.y" | |
3407 | ||
f73dda09 JA |
3408 | |
3409 | /* Initial size to allocate for tokens, and the | |
3410 | amount to grow them by. */ | |
3411 | #define TOKEN_DEFAULT_INITIAL_SIZE 496 | |
3412 | #define TOKEN_DEFAULT_GROW_SIZE 512 | |
3413 | ||
b80f6443 JA |
3414 | /* Should we call prompt_again? */ |
3415 | #define SHOULD_PROMPT() \ | |
3416 | (interactive && (bash_input.type == st_stdin || bash_input.type == st_stream)) | |
3417 | ||
3418 | #if defined (ALIAS) | |
3419 | # define expanding_alias() (pushed_string_list && pushed_string_list->expander) | |
3420 | #else | |
3421 | # define expanding_alias() 0 | |
3422 | #endif | |
3423 | ||
f73dda09 JA |
3424 | /* Global var is non-zero when end of file has been reached. */ |
3425 | int EOF_Reached = 0; | |
3426 | ||
3427 | #ifdef DEBUG | |
3428 | static void | |
3429 | debug_parser (i) | |
3430 | int i; | |
3431 | { | |
3432 | #if YYDEBUG != 0 | |
3433 | yydebug = i; | |
3434 | #endif | |
3435 | } | |
3436 | #endif | |
3437 | ||
3438 | /* yy_getc () returns the next available character from input or EOF. | |
3439 | yy_ungetc (c) makes `c' the next character to read. | |
3440 | init_yy_io (get, unget, type, location) makes the function GET the | |
3441 | installed function for getting the next character, makes UNGET the | |
3442 | installed function for un-getting a character, sets the type of stream | |
3443 | (either string or file) from TYPE, and makes LOCATION point to where | |
3444 | the input is coming from. */ | |
3445 | ||
3446 | /* Unconditionally returns end-of-file. */ | |
3447 | int | |
3448 | return_EOF () | |
3449 | { | |
3450 | return (EOF); | |
3451 | } | |
3452 | ||
3453 | /* Variable containing the current get and unget functions. | |
3454 | See ./input.h for a clearer description. */ | |
3455 | BASH_INPUT bash_input; | |
3456 | ||
3457 | /* Set all of the fields in BASH_INPUT to NULL. Free bash_input.name if it | |
3458 | is non-null, avoiding a memory leak. */ | |
3459 | void | |
3460 | initialize_bash_input () | |
3461 | { | |
3462 | bash_input.type = st_none; | |
3463 | FREE (bash_input.name); | |
3464 | bash_input.name = (char *)NULL; | |
3465 | bash_input.location.file = (FILE *)NULL; | |
3466 | bash_input.location.string = (char *)NULL; | |
3467 | bash_input.getter = (sh_cget_func_t *)NULL; | |
3468 | bash_input.ungetter = (sh_cunget_func_t *)NULL; | |
3469 | } | |
3470 | ||
3471 | /* Set the contents of the current bash input stream from | |
3472 | GET, UNGET, TYPE, NAME, and LOCATION. */ | |
3473 | void | |
3474 | init_yy_io (get, unget, type, name, location) | |
3475 | sh_cget_func_t *get; | |
3476 | sh_cunget_func_t *unget; | |
3477 | enum stream_type type; | |
3478 | const char *name; | |
3479 | INPUT_STREAM location; | |
3480 | { | |
3481 | bash_input.type = type; | |
3482 | FREE (bash_input.name); | |
3483 | bash_input.name = name ? savestring (name) : (char *)NULL; | |
3484 | ||
3485 | /* XXX */ | |
3486 | #if defined (CRAY) | |
3487 | memcpy((char *)&bash_input.location.string, (char *)&location.string, sizeof(location)); | |
3488 | #else | |
3489 | bash_input.location = location; | |
3490 | #endif | |
3491 | bash_input.getter = get; | |
3492 | bash_input.ungetter = unget; | |
3493 | } | |
3494 | ||
7117c2d2 JA |
3495 | char * |
3496 | yy_input_name () | |
3497 | { | |
3498 | return (bash_input.name ? bash_input.name : "stdin"); | |
3499 | } | |
3500 | ||
f73dda09 JA |
3501 | /* Call this to get the next character of input. */ |
3502 | static int | |
3503 | yy_getc () | |
3504 | { | |
3505 | return (*(bash_input.getter)) (); | |
3506 | } | |
3507 | ||
3508 | /* Call this to unget C. That is, to make C the next character | |
3509 | to be read. */ | |
3510 | static int | |
3511 | yy_ungetc (c) | |
3512 | int c; | |
3513 | { | |
3514 | return (*(bash_input.ungetter)) (c); | |
3515 | } | |
3516 | ||
3517 | #if defined (BUFFERED_INPUT) | |
3518 | #ifdef INCLUDE_UNUSED | |
3519 | int | |
3520 | input_file_descriptor () | |
3521 | { | |
3522 | switch (bash_input.type) | |
3523 | { | |
3524 | case st_stream: | |
3525 | return (fileno (bash_input.location.file)); | |
3526 | case st_bstream: | |
3527 | return (bash_input.location.buffered_fd); | |
3528 | case st_stdin: | |
3529 | default: | |
3530 | return (fileno (stdin)); | |
3531 | } | |
3532 | } | |
3533 | #endif | |
3534 | #endif /* BUFFERED_INPUT */ | |
3535 | ||
3536 | /* **************************************************************** */ | |
3537 | /* */ | |
3538 | /* Let input be read from readline (). */ | |
3539 | /* */ | |
3540 | /* **************************************************************** */ | |
3541 | ||
3542 | #if defined (READLINE) | |
3543 | char *current_readline_prompt = (char *)NULL; | |
3544 | char *current_readline_line = (char *)NULL; | |
3545 | int current_readline_line_index = 0; | |
3546 | ||
3547 | static int | |
3548 | yy_readline_get () | |
3549 | { | |
3550 | SigHandler *old_sigint; | |
3551 | int line_len; | |
3552 | unsigned char c; | |
3553 | ||
3554 | if (!current_readline_line) | |
3555 | { | |
3556 | if (!bash_readline_initialized) | |
3557 | initialize_readline (); | |
3558 | ||
3559 | #if defined (JOB_CONTROL) | |
3560 | if (job_control) | |
3561 | give_terminal_to (shell_pgrp, 0); | |
3562 | #endif /* JOB_CONTROL */ | |
3563 | ||
3564 | old_sigint = (SigHandler *)NULL; | |
3565 | if (signal_is_ignored (SIGINT) == 0) | |
3566 | { | |
3567 | old_sigint = (SigHandler *)set_signal_handler (SIGINT, sigint_sighandler); | |
3568 | interrupt_immediately++; | |
3569 | } | |
0628567a | 3570 | terminate_immediately = 1; |
f73dda09 JA |
3571 | |
3572 | current_readline_line = readline (current_readline_prompt ? | |
3573 | current_readline_prompt : ""); | |
3574 | ||
0628567a | 3575 | terminate_immediately = 0; |
f73dda09 JA |
3576 | if (signal_is_ignored (SIGINT) == 0 && old_sigint) |
3577 | { | |
3578 | interrupt_immediately--; | |
3579 | set_signal_handler (SIGINT, old_sigint); | |
3580 | } | |
3581 | ||
3582 | #if 0 | |
3583 | /* Reset the prompt to the decoded value of prompt_string_pointer. */ | |
3584 | reset_readline_prompt (); | |
3585 | #endif | |
3586 | ||
3587 | if (current_readline_line == 0) | |
3588 | return (EOF); | |
3589 | ||
3590 | current_readline_line_index = 0; | |
3591 | line_len = strlen (current_readline_line); | |
3592 | ||
3593 | current_readline_line = (char *)xrealloc (current_readline_line, 2 + line_len); | |
3594 | current_readline_line[line_len++] = '\n'; | |
3595 | current_readline_line[line_len] = '\0'; | |
3596 | } | |
3597 | ||
3598 | if (current_readline_line[current_readline_line_index] == 0) | |
3599 | { | |
3600 | free (current_readline_line); | |
3601 | current_readline_line = (char *)NULL; | |
3602 | return (yy_readline_get ()); | |
3603 | } | |
3604 | else | |
3605 | { | |
3606 | c = current_readline_line[current_readline_line_index++]; | |
3607 | return (c); | |
3608 | } | |
3609 | } | |
3610 | ||
3611 | static int | |
3612 | yy_readline_unget (c) | |
3613 | int c; | |
3614 | { | |
3615 | if (current_readline_line_index && current_readline_line) | |
3616 | current_readline_line[--current_readline_line_index] = c; | |
3617 | return (c); | |
3618 | } | |
3619 | ||
3620 | void | |
3621 | with_input_from_stdin () | |
3622 | { | |
3623 | INPUT_STREAM location; | |
3624 | ||
3625 | if (bash_input.type != st_stdin && stream_on_stack (st_stdin) == 0) | |
3626 | { | |
3627 | location.string = current_readline_line; | |
3628 | init_yy_io (yy_readline_get, yy_readline_unget, | |
3629 | st_stdin, "readline stdin", location); | |
3630 | } | |
3631 | } | |
3632 | ||
3633 | #else /* !READLINE */ | |
3634 | ||
3635 | void | |
3636 | with_input_from_stdin () | |
3637 | { | |
3638 | with_input_from_stream (stdin, "stdin"); | |
3639 | } | |
3640 | #endif /* !READLINE */ | |
3641 | ||
3642 | /* **************************************************************** */ | |
3643 | /* */ | |
3644 | /* Let input come from STRING. STRING is zero terminated. */ | |
3645 | /* */ | |
3646 | /* **************************************************************** */ | |
3647 | ||
3648 | static int | |
3649 | yy_string_get () | |
3650 | { | |
3651 | register char *string; | |
3652 | register unsigned char c; | |
3653 | ||
3654 | string = bash_input.location.string; | |
3655 | ||
3656 | /* If the string doesn't exist, or is empty, EOF found. */ | |
3657 | if (string && *string) | |
3658 | { | |
3659 | c = *string++; | |
3660 | bash_input.location.string = string; | |
3661 | return (c); | |
3662 | } | |
3663 | else | |
3664 | return (EOF); | |
3665 | } | |
3666 | ||
3667 | static int | |
3668 | yy_string_unget (c) | |
3669 | int c; | |
3670 | { | |
3671 | *(--bash_input.location.string) = c; | |
3672 | return (c); | |
3673 | } | |
3674 | ||
3675 | void | |
3676 | with_input_from_string (string, name) | |
3677 | char *string; | |
3678 | const char *name; | |
3679 | { | |
3680 | INPUT_STREAM location; | |
3681 | ||
3682 | location.string = string; | |
3683 | init_yy_io (yy_string_get, yy_string_unget, st_string, name, location); | |
3684 | } | |
3685 | ||
3185942a JA |
3686 | /* Count the number of characters we've consumed from bash_input.location.string |
3687 | and read into shell_input_line, but have not returned from shell_getc. | |
3688 | That is the true input location. Rewind bash_input.location.string by | |
3689 | that number of characters, so it points to the last character actually | |
3690 | consumed by the parser. */ | |
3691 | static void | |
3692 | rewind_input_string () | |
3693 | { | |
3694 | int xchars; | |
3695 | ||
3696 | /* number of unconsumed characters in the input -- XXX need to take newlines | |
3697 | into account, e.g., $(...\n) */ | |
3698 | xchars = shell_input_line_len - shell_input_line_index; | |
3699 | if (bash_input.location.string[-1] == '\n') | |
3700 | xchars++; | |
3701 | ||
3702 | /* XXX - how to reflect bash_input.location.string back to string passed to | |
3703 | parse_and_execute or xparse_dolparen? xparse_dolparen needs to know how | |
3704 | far into the string we parsed. parse_and_execute knows where bash_input. | |
3705 | location.string is, and how far from orig_string that is -- that's the | |
3706 | number of characters the command consumed. */ | |
3707 | ||
3708 | /* bash_input.location.string - xchars should be where we parsed to */ | |
3709 | /* need to do more validation on xchars value for sanity -- test cases. */ | |
3710 | bash_input.location.string -= xchars; | |
3711 | } | |
3712 | ||
f73dda09 JA |
3713 | /* **************************************************************** */ |
3714 | /* */ | |
3715 | /* Let input come from STREAM. */ | |
3716 | /* */ | |
3717 | /* **************************************************************** */ | |
3718 | ||
3719 | /* These two functions used to test the value of the HAVE_RESTARTABLE_SYSCALLS | |
3720 | define, and just use getc/ungetc if it was defined, but since bash | |
3721 | installs its signal handlers without the SA_RESTART flag, some signals | |
3722 | (like SIGCHLD, SIGWINCH, etc.) received during a read(2) will not cause | |
3723 | the read to be restarted. We need to restart it ourselves. */ | |
3724 | ||
3725 | static int | |
3726 | yy_stream_get () | |
3727 | { | |
3728 | int result; | |
3729 | ||
3730 | result = EOF; | |
3731 | if (bash_input.location.file) | |
95732b49 JA |
3732 | { |
3733 | if (interactive) | |
0628567a JA |
3734 | { |
3735 | interrupt_immediately++; | |
3736 | terminate_immediately++; | |
3737 | } | |
95732b49 JA |
3738 | result = getc_with_restart (bash_input.location.file); |
3739 | if (interactive) | |
0628567a JA |
3740 | { |
3741 | interrupt_immediately--; | |
3742 | terminate_immediately--; | |
3743 | } | |
95732b49 | 3744 | } |
f73dda09 JA |
3745 | return (result); |
3746 | } | |
3747 | ||
3748 | static int | |
3749 | yy_stream_unget (c) | |
3750 | int c; | |
3751 | { | |
3752 | return (ungetc_with_restart (c, bash_input.location.file)); | |
3753 | } | |
3754 | ||
3755 | void | |
3756 | with_input_from_stream (stream, name) | |
3757 | FILE *stream; | |
3758 | const char *name; | |
3759 | { | |
3760 | INPUT_STREAM location; | |
3761 | ||
3762 | location.file = stream; | |
3763 | init_yy_io (yy_stream_get, yy_stream_unget, st_stream, name, location); | |
3764 | } | |
3765 | ||
3766 | typedef struct stream_saver { | |
3767 | struct stream_saver *next; | |
3768 | BASH_INPUT bash_input; | |
3769 | int line; | |
3770 | #if defined (BUFFERED_INPUT) | |
3771 | BUFFERED_STREAM *bstream; | |
3772 | #endif /* BUFFERED_INPUT */ | |
3773 | } STREAM_SAVER; | |
3774 | ||
3775 | /* The globally known line number. */ | |
3776 | int line_number = 0; | |
3777 | ||
3778 | #if defined (COND_COMMAND) | |
3779 | static int cond_lineno; | |
3780 | static int cond_token; | |
3781 | #endif | |
3782 | ||
3783 | STREAM_SAVER *stream_list = (STREAM_SAVER *)NULL; | |
3784 | ||
3785 | void | |
3786 | push_stream (reset_lineno) | |
3787 | int reset_lineno; | |
3788 | { | |
3789 | STREAM_SAVER *saver = (STREAM_SAVER *)xmalloc (sizeof (STREAM_SAVER)); | |
3790 | ||
3791 | xbcopy ((char *)&bash_input, (char *)&(saver->bash_input), sizeof (BASH_INPUT)); | |
3792 | ||
3793 | #if defined (BUFFERED_INPUT) | |
3794 | saver->bstream = (BUFFERED_STREAM *)NULL; | |
3795 | /* If we have a buffered stream, clear out buffers[fd]. */ | |
3796 | if (bash_input.type == st_bstream && bash_input.location.buffered_fd >= 0) | |
3797 | saver->bstream = set_buffered_stream (bash_input.location.buffered_fd, | |
3798 | (BUFFERED_STREAM *)NULL); | |
3799 | #endif /* BUFFERED_INPUT */ | |
3800 | ||
3801 | saver->line = line_number; | |
3802 | bash_input.name = (char *)NULL; | |
3803 | saver->next = stream_list; | |
3804 | stream_list = saver; | |
3805 | EOF_Reached = 0; | |
3806 | if (reset_lineno) | |
3807 | line_number = 0; | |
3808 | } | |
3809 | ||
3810 | void | |
3811 | pop_stream () | |
3812 | { | |
3813 | if (!stream_list) | |
3814 | EOF_Reached = 1; | |
3815 | else | |
3816 | { | |
3817 | STREAM_SAVER *saver = stream_list; | |
3818 | ||
3819 | EOF_Reached = 0; | |
3820 | stream_list = stream_list->next; | |
3821 | ||
3822 | init_yy_io (saver->bash_input.getter, | |
3823 | saver->bash_input.ungetter, | |
3824 | saver->bash_input.type, | |
3825 | saver->bash_input.name, | |
3826 | saver->bash_input.location); | |
3827 | ||
3828 | #if defined (BUFFERED_INPUT) | |
3829 | /* If we have a buffered stream, restore buffers[fd]. */ | |
3830 | /* If the input file descriptor was changed while this was on the | |
3831 | save stack, update the buffered fd to the new file descriptor and | |
3832 | re-establish the buffer <-> bash_input fd correspondence. */ | |
3833 | if (bash_input.type == st_bstream && bash_input.location.buffered_fd >= 0) | |
3834 | { | |
3835 | if (bash_input_fd_changed) | |
3836 | { | |
3837 | bash_input_fd_changed = 0; | |
3838 | if (default_buffered_input >= 0) | |
3839 | { | |
3840 | bash_input.location.buffered_fd = default_buffered_input; | |
3841 | saver->bstream->b_fd = default_buffered_input; | |
3842 | SET_CLOSE_ON_EXEC (default_buffered_input); | |
3843 | } | |
3844 | } | |
3845 | /* XXX could free buffered stream returned as result here. */ | |
3846 | set_buffered_stream (bash_input.location.buffered_fd, saver->bstream); | |
3847 | } | |
3848 | #endif /* BUFFERED_INPUT */ | |
3849 | ||
3850 | line_number = saver->line; | |
3851 | ||
3852 | FREE (saver->bash_input.name); | |
3853 | free (saver); | |
3854 | } | |
3855 | } | |
3856 | ||
3857 | /* Return 1 if a stream of type TYPE is saved on the stack. */ | |
3858 | int | |
3859 | stream_on_stack (type) | |
3860 | enum stream_type type; | |
3861 | { | |
3862 | register STREAM_SAVER *s; | |
3863 | ||
3864 | for (s = stream_list; s; s = s->next) | |
3865 | if (s->bash_input.type == type) | |
3866 | return 1; | |
3867 | return 0; | |
3868 | } | |
3869 | ||
3870 | /* Save the current token state and return it in a malloced array. */ | |
3871 | int * | |
3872 | save_token_state () | |
3873 | { | |
3874 | int *ret; | |
3875 | ||
3876 | ret = (int *)xmalloc (3 * sizeof (int)); | |
3877 | ret[0] = last_read_token; | |
3878 | ret[1] = token_before_that; | |
3879 | ret[2] = two_tokens_ago; | |
3880 | return ret; | |
3881 | } | |
3882 | ||
3883 | void | |
3884 | restore_token_state (ts) | |
3885 | int *ts; | |
3886 | { | |
3887 | if (ts == 0) | |
3888 | return; | |
3889 | last_read_token = ts[0]; | |
3890 | token_before_that = ts[1]; | |
3891 | two_tokens_ago = ts[2]; | |
3892 | } | |
3893 | ||
3894 | /* | |
3895 | * This is used to inhibit alias expansion and reserved word recognition | |
3896 | * inside case statement pattern lists. A `case statement pattern list' is: | |
3897 | * | |
3898 | * everything between the `in' in a `case word in' and the next ')' | |
3899 | * or `esac' | |
3900 | * everything between a `;;' and the next `)' or `esac' | |
3901 | */ | |
3902 | ||
3903 | #if defined (ALIAS) || defined (DPAREN_ARITHMETIC) | |
3904 | ||
f73dda09 JA |
3905 | #define END_OF_ALIAS 0 |
3906 | ||
3907 | /* | |
3908 | * Pseudo-global variables used in implementing token-wise alias expansion. | |
3909 | */ | |
3910 | ||
3911 | /* | |
3912 | * Pushing and popping strings. This works together with shell_getc to | |
3913 | * implement alias expansion on a per-token basis. | |
3914 | */ | |
3915 | ||
3916 | typedef struct string_saver { | |
3917 | struct string_saver *next; | |
3918 | int expand_alias; /* Value to set expand_alias to when string is popped. */ | |
3919 | char *saved_line; | |
3920 | #if defined (ALIAS) | |
3921 | alias_t *expander; /* alias that caused this line to be pushed. */ | |
3922 | #endif | |
3923 | int saved_line_size, saved_line_index, saved_line_terminator; | |
3924 | } STRING_SAVER; | |
3925 | ||
3926 | STRING_SAVER *pushed_string_list = (STRING_SAVER *)NULL; | |
3927 | ||
3928 | /* | |
3929 | * Push the current shell_input_line onto a stack of such lines and make S | |
3930 | * the current input. Used when expanding aliases. EXPAND is used to set | |
3931 | * the value of expand_next_token when the string is popped, so that the | |
3932 | * word after the alias in the original line is handled correctly when the | |
3933 | * alias expands to multiple words. TOKEN is the token that was expanded | |
3934 | * into S; it is saved and used to prevent infinite recursive expansion. | |
3935 | */ | |
3936 | static void | |
3937 | push_string (s, expand, ap) | |
3938 | char *s; | |
3939 | int expand; | |
3940 | alias_t *ap; | |
3941 | { | |
3942 | STRING_SAVER *temp = (STRING_SAVER *)xmalloc (sizeof (STRING_SAVER)); | |
3943 | ||
3944 | temp->expand_alias = expand; | |
3945 | temp->saved_line = shell_input_line; | |
3946 | temp->saved_line_size = shell_input_line_size; | |
3947 | temp->saved_line_index = shell_input_line_index; | |
3948 | temp->saved_line_terminator = shell_input_line_terminator; | |
3949 | #if defined (ALIAS) | |
3950 | temp->expander = ap; | |
3951 | #endif | |
3952 | temp->next = pushed_string_list; | |
3953 | pushed_string_list = temp; | |
3954 | ||
3955 | #if defined (ALIAS) | |
3956 | if (ap) | |
3957 | ap->flags |= AL_BEINGEXPANDED; | |
3958 | #endif | |
3959 | ||
3960 | shell_input_line = s; | |
3961 | shell_input_line_size = strlen (s); | |
3962 | shell_input_line_index = 0; | |
3963 | shell_input_line_terminator = '\0'; | |
b80f6443 JA |
3964 | #if 0 |
3965 | parser_state &= ~PST_ALEXPNEXT; /* XXX */ | |
3966 | #endif | |
7117c2d2 JA |
3967 | |
3968 | set_line_mbstate (); | |
f73dda09 JA |
3969 | } |
3970 | ||
3971 | /* | |
3972 | * Make the top of the pushed_string stack be the current shell input. | |
3973 | * Only called when there is something on the stack. Called from shell_getc | |
3974 | * when it thinks it has consumed the string generated by an alias expansion | |
3975 | * and needs to return to the original input line. | |
3976 | */ | |
3977 | static void | |
3978 | pop_string () | |
3979 | { | |
3980 | STRING_SAVER *t; | |
3981 | ||
3982 | FREE (shell_input_line); | |
3983 | shell_input_line = pushed_string_list->saved_line; | |
3984 | shell_input_line_index = pushed_string_list->saved_line_index; | |
3985 | shell_input_line_size = pushed_string_list->saved_line_size; | |
3986 | shell_input_line_terminator = pushed_string_list->saved_line_terminator; | |
3987 | ||
3988 | if (pushed_string_list->expand_alias) | |
3989 | parser_state |= PST_ALEXPNEXT; | |
3990 | else | |
3991 | parser_state &= ~PST_ALEXPNEXT; | |
3992 | ||
3993 | t = pushed_string_list; | |
3994 | pushed_string_list = pushed_string_list->next; | |
3995 | ||
3996 | #if defined (ALIAS) | |
3997 | if (t->expander) | |
3998 | t->expander->flags &= ~AL_BEINGEXPANDED; | |
3999 | #endif | |
4000 | ||
4001 | free ((char *)t); | |
7117c2d2 JA |
4002 | |
4003 | set_line_mbstate (); | |
f73dda09 JA |
4004 | } |
4005 | ||
4006 | static void | |
4007 | free_string_list () | |
4008 | { | |
4009 | register STRING_SAVER *t, *t1; | |
4010 | ||
4011 | for (t = pushed_string_list; t; ) | |
4012 | { | |
4013 | t1 = t->next; | |
4014 | FREE (t->saved_line); | |
4015 | #if defined (ALIAS) | |
4016 | if (t->expander) | |
4017 | t->expander->flags &= ~AL_BEINGEXPANDED; | |
4018 | #endif | |
4019 | free ((char *)t); | |
4020 | t = t1; | |
4021 | } | |
4022 | pushed_string_list = (STRING_SAVER *)NULL; | |
4023 | } | |
4024 | ||
4025 | #endif /* ALIAS || DPAREN_ARITHMETIC */ | |
4026 | ||
b80f6443 JA |
4027 | void |
4028 | free_pushed_string_input () | |
4029 | { | |
4030 | #if defined (ALIAS) || defined (DPAREN_ARITHMETIC) | |
4031 | free_string_list (); | |
4032 | #endif | |
4033 | } | |
4034 | ||
f73dda09 JA |
4035 | /* Return a line of text, taken from wherever yylex () reads input. |
4036 | If there is no more input, then we return NULL. If REMOVE_QUOTED_NEWLINE | |
4037 | is non-zero, we remove unquoted \<newline> pairs. This is used by | |
4038 | read_secondary_line to read here documents. */ | |
4039 | static char * | |
4040 | read_a_line (remove_quoted_newline) | |
4041 | int remove_quoted_newline; | |
4042 | { | |
4043 | static char *line_buffer = (char *)NULL; | |
4044 | static int buffer_size = 0; | |
4045 | int indx = 0, c, peekc, pass_next; | |
4046 | ||
4047 | #if defined (READLINE) | |
b80f6443 | 4048 | if (no_line_editing && SHOULD_PROMPT ()) |
f73dda09 | 4049 | #else |
b80f6443 | 4050 | if (SHOULD_PROMPT ()) |
f73dda09 JA |
4051 | #endif |
4052 | print_prompt (); | |
4053 | ||
4054 | pass_next = 0; | |
4055 | while (1) | |
4056 | { | |
f73dda09 JA |
4057 | /* Allow immediate exit if interrupted during input. */ |
4058 | QUIT; | |
4059 | ||
95732b49 JA |
4060 | c = yy_getc (); |
4061 | ||
f73dda09 JA |
4062 | /* Ignore null bytes in input. */ |
4063 | if (c == 0) | |
4064 | { | |
4065 | #if 0 | |
4066 | internal_warning ("read_a_line: ignored null byte in input"); | |
4067 | #endif | |
4068 | continue; | |
4069 | } | |
4070 | ||
4071 | /* If there is no more input, then we return NULL. */ | |
4072 | if (c == EOF) | |
4073 | { | |
4074 | if (interactive && bash_input.type == st_stream) | |
4075 | clearerr (stdin); | |
4076 | if (indx == 0) | |
4077 | return ((char *)NULL); | |
4078 | c = '\n'; | |
4079 | } | |
4080 | ||
4081 | /* `+2' in case the final character in the buffer is a newline. */ | |
4082 | RESIZE_MALLOCED_BUFFER (line_buffer, indx, 2, buffer_size, 128); | |
4083 | ||
4084 | /* IF REMOVE_QUOTED_NEWLINES is non-zero, we are reading a | |
4085 | here document with an unquoted delimiter. In this case, | |
4086 | the line will be expanded as if it were in double quotes. | |
4087 | We allow a backslash to escape the next character, but we | |
4088 | need to treat the backslash specially only if a backslash | |
4089 | quoting a backslash-newline pair appears in the line. */ | |
4090 | if (pass_next) | |
4091 | { | |
4092 | line_buffer[indx++] = c; | |
4093 | pass_next = 0; | |
4094 | } | |
4095 | else if (c == '\\' && remove_quoted_newline) | |
4096 | { | |
4097 | peekc = yy_getc (); | |
4098 | if (peekc == '\n') | |
b80f6443 JA |
4099 | { |
4100 | line_number++; | |
4101 | continue; /* Make the unquoted \<newline> pair disappear. */ | |
4102 | } | |
f73dda09 JA |
4103 | else |
4104 | { | |
4105 | yy_ungetc (peekc); | |
4106 | pass_next = 1; | |
4107 | line_buffer[indx++] = c; /* Preserve the backslash. */ | |
4108 | } | |
4109 | } | |
4110 | else | |
4111 | line_buffer[indx++] = c; | |
4112 | ||
4113 | if (c == '\n') | |
4114 | { | |
4115 | line_buffer[indx] = '\0'; | |
4116 | return (line_buffer); | |
4117 | } | |
4118 | } | |
4119 | } | |
4120 | ||
4121 | /* Return a line as in read_a_line (), but insure that the prompt is | |
4122 | the secondary prompt. This is used to read the lines of a here | |
4123 | document. REMOVE_QUOTED_NEWLINE is non-zero if we should remove | |
4124 | newlines quoted with backslashes while reading the line. It is | |
4125 | non-zero unless the delimiter of the here document was quoted. */ | |
4126 | char * | |
4127 | read_secondary_line (remove_quoted_newline) | |
4128 | int remove_quoted_newline; | |
4129 | { | |
3185942a JA |
4130 | char *ret; |
4131 | int n, c; | |
4132 | ||
f73dda09 | 4133 | prompt_string_pointer = &ps2_prompt; |
b80f6443 JA |
4134 | if (SHOULD_PROMPT()) |
4135 | prompt_again (); | |
3185942a JA |
4136 | ret = read_a_line (remove_quoted_newline); |
4137 | #if defined (HISTORY) | |
4138 | if (remember_on_history && (parser_state & PST_HEREDOC)) | |
4139 | { | |
4140 | /* To make adding the the here-document body right, we need to rely | |
4141 | on history_delimiting_chars() returning \n for the first line of | |
4142 | the here-document body and the null string for the second and | |
4143 | subsequent lines, so we avoid double newlines. | |
4144 | current_command_line_count == 2 for the first line of the body. */ | |
4145 | ||
4146 | current_command_line_count++; | |
4147 | maybe_add_history (ret); | |
4148 | } | |
4149 | #endif /* HISTORY */ | |
4150 | return ret; | |
f73dda09 JA |
4151 | } |
4152 | ||
4153 | /* **************************************************************** */ | |
4154 | /* */ | |
4155 | /* YYLEX () */ | |
4156 | /* */ | |
4157 | /* **************************************************************** */ | |
4158 | ||
4159 | /* Reserved words. These are only recognized as the first word of a | |
4160 | command. */ | |
4161 | STRING_INT_ALIST word_token_alist[] = { | |
4162 | { "if", IF }, | |
4163 | { "then", THEN }, | |
28ef6c31 JA |
4164 | { "else", ELSE }, |
4165 | { "elif", ELIF }, | |
4166 | { "fi", FI }, | |
4167 | { "case", CASE }, | |
4168 | { "esac", ESAC }, | |
4169 | { "for", FOR }, | |
4170 | #if defined (SELECT_COMMAND) | |
4171 | { "select", SELECT }, | |
726f6388 | 4172 | #endif |
28ef6c31 JA |
4173 | { "while", WHILE }, |
4174 | { "until", UNTIL }, | |
4175 | { "do", DO }, | |
4176 | { "done", DONE }, | |
4177 | { "in", IN }, | |
4178 | { "function", FUNCTION }, | |
4179 | #if defined (COMMAND_TIMING) | |
4180 | { "time", TIME }, | |
4181 | #endif | |
4182 | { "{", '{' }, | |
4183 | { "}", '}' }, | |
4184 | { "!", BANG }, | |
4185 | #if defined (COND_COMMAND) | |
4186 | { "[[", COND_START }, | |
4187 | { "]]", COND_END }, | |
3185942a JA |
4188 | #endif |
4189 | #if defined (COPROCESS_SUPPORT) | |
4190 | { "coproc", COPROC }, | |
726f6388 | 4191 | #endif |
28ef6c31 JA |
4192 | { (char *)NULL, 0} |
4193 | }; | |
726f6388 | 4194 | |
7117c2d2 JA |
4195 | /* other tokens that can be returned by read_token() */ |
4196 | STRING_INT_ALIST other_token_alist[] = { | |
4197 | /* Multiple-character tokens with special values */ | |
4198 | { "-p", TIMEOPT }, | |
4199 | { "&&", AND_AND }, | |
4200 | { "||", OR_OR }, | |
4201 | { ">>", GREATER_GREATER }, | |
4202 | { "<<", LESS_LESS }, | |
4203 | { "<&", LESS_AND }, | |
4204 | { ">&", GREATER_AND }, | |
4205 | { ";;", SEMI_SEMI }, | |
3185942a JA |
4206 | { ";&", SEMI_AND }, |
4207 | { ";;&", SEMI_SEMI_AND }, | |
7117c2d2 JA |
4208 | { "<<-", LESS_LESS_MINUS }, |
4209 | { "<<<", LESS_LESS_LESS }, | |
4210 | { "&>", AND_GREATER }, | |
3185942a | 4211 | { "&>>", AND_GREATER_GREATER }, |
7117c2d2 JA |
4212 | { "<>", LESS_GREATER }, |
4213 | { ">|", GREATER_BAR }, | |
3185942a | 4214 | { "|&", BAR_AND }, |
7117c2d2 JA |
4215 | { "EOF", yacc_EOF }, |
4216 | /* Tokens whose value is the character itself */ | |
4217 | { ">", '>' }, | |
4218 | { "<", '<' }, | |
4219 | { "-", '-' }, | |
4220 | { "{", '{' }, | |
4221 | { "}", '}' }, | |
4222 | { ";", ';' }, | |
4223 | { "(", '(' }, | |
4224 | { ")", ')' }, | |
4225 | { "|", '|' }, | |
4226 | { "&", '&' }, | |
4227 | { "newline", '\n' }, | |
4228 | { (char *)NULL, 0} | |
4229 | }; | |
4230 | ||
4231 | /* others not listed here: | |
4232 | WORD look at yylval.word | |
4233 | ASSIGNMENT_WORD look at yylval.word | |
4234 | NUMBER look at yylval.number | |
4235 | ARITH_CMD look at yylval.word_list | |
4236 | ARITH_FOR_EXPRS look at yylval.word_list | |
4237 | COND_CMD look at yylval.command | |
4238 | */ | |
726f6388 | 4239 | |
28ef6c31 JA |
4240 | /* These are used by read_token_word, but appear up here so that shell_getc |
4241 | can use them to decide when to add otherwise blank lines to the history. */ | |
726f6388 | 4242 | |
28ef6c31 JA |
4243 | /* The primary delimiter stack. */ |
4244 | struct dstack dstack = { (char *)NULL, 0, 0 }; | |
726f6388 | 4245 | |
28ef6c31 JA |
4246 | /* A temporary delimiter stack to be used when decoding prompt strings. |
4247 | This is needed because command substitutions in prompt strings (e.g., PS2) | |
4248 | can screw up the parser's quoting state. */ | |
4249 | static struct dstack temp_dstack = { (char *)NULL, 0, 0 }; | |
726f6388 | 4250 | |
28ef6c31 JA |
4251 | /* Macro for accessing the top delimiter on the stack. Returns the |
4252 | delimiter or zero if none. */ | |
4253 | #define current_delimiter(ds) \ | |
4254 | (ds.delimiter_depth ? ds.delimiters[ds.delimiter_depth - 1] : 0) | |
726f6388 | 4255 | |
28ef6c31 JA |
4256 | #define push_delimiter(ds, character) \ |
4257 | do \ | |
4258 | { \ | |
4259 | if (ds.delimiter_depth + 2 > ds.delimiter_space) \ | |
f73dda09 | 4260 | ds.delimiters = (char *)xrealloc \ |
28ef6c31 JA |
4261 | (ds.delimiters, (ds.delimiter_space += 10) * sizeof (char)); \ |
4262 | ds.delimiters[ds.delimiter_depth] = character; \ | |
4263 | ds.delimiter_depth++; \ | |
4264 | } \ | |
4265 | while (0) | |
726f6388 | 4266 | |
28ef6c31 | 4267 | #define pop_delimiter(ds) ds.delimiter_depth-- |
726f6388 | 4268 | |
28ef6c31 JA |
4269 | /* Return the next shell input character. This always reads characters |
4270 | from shell_input_line; when that line is exhausted, it is time to | |
4271 | read the next line. This is called by read_token when the shell is | |
4272 | processing normal command input. */ | |
ccc6cda3 | 4273 | |
28ef6c31 JA |
4274 | /* This implements one-character lookahead/lookbehind across physical input |
4275 | lines, to avoid something being lost because it's pushed back with | |
4276 | shell_ungetc when we're at the start of a line. */ | |
4277 | static int eol_ungetc_lookahead = 0; | |
726f6388 | 4278 | |
28ef6c31 JA |
4279 | static int |
4280 | shell_getc (remove_quoted_newline) | |
4281 | int remove_quoted_newline; | |
4282 | { | |
4283 | register int i; | |
4284 | int c; | |
f73dda09 | 4285 | unsigned char uc; |
726f6388 | 4286 | |
28ef6c31 | 4287 | QUIT; |
726f6388 | 4288 | |
95732b49 JA |
4289 | if (sigwinch_received) |
4290 | { | |
4291 | sigwinch_received = 0; | |
4292 | get_new_window_size (0, (int *)0, (int *)0); | |
4293 | } | |
4294 | ||
28ef6c31 JA |
4295 | if (eol_ungetc_lookahead) |
4296 | { | |
4297 | c = eol_ungetc_lookahead; | |
4298 | eol_ungetc_lookahead = 0; | |
4299 | return (c); | |
4300 | } | |
ccc6cda3 | 4301 | |
28ef6c31 JA |
4302 | #if defined (ALIAS) || defined (DPAREN_ARITHMETIC) |
4303 | /* If shell_input_line[shell_input_line_index] == 0, but there is | |
4304 | something on the pushed list of strings, then we don't want to go | |
4305 | off and get another line. We let the code down below handle it. */ | |
b72432fd | 4306 | |
28ef6c31 JA |
4307 | if (!shell_input_line || ((!shell_input_line[shell_input_line_index]) && |
4308 | (pushed_string_list == (STRING_SAVER *)NULL))) | |
4309 | #else /* !ALIAS && !DPAREN_ARITHMETIC */ | |
4310 | if (!shell_input_line || !shell_input_line[shell_input_line_index]) | |
4311 | #endif /* !ALIAS && !DPAREN_ARITHMETIC */ | |
4312 | { | |
4313 | line_number++; | |
726f6388 | 4314 | |
28ef6c31 | 4315 | restart_read: |
726f6388 | 4316 | |
28ef6c31 JA |
4317 | /* Allow immediate exit if interrupted during input. */ |
4318 | QUIT; | |
ccc6cda3 | 4319 | |
28ef6c31 JA |
4320 | i = 0; |
4321 | shell_input_line_terminator = 0; | |
726f6388 | 4322 | |
b80f6443 JA |
4323 | /* If the shell is interatctive, but not currently printing a prompt |
4324 | (interactive_shell && interactive == 0), we don't want to print | |
4325 | notifies or cleanup the jobs -- we want to defer it until we do | |
4326 | print the next prompt. */ | |
4327 | if (interactive_shell == 0 || SHOULD_PROMPT()) | |
4328 | { | |
28ef6c31 JA |
4329 | #if defined (JOB_CONTROL) |
4330 | /* This can cause a problem when reading a command as the result | |
4331 | of a trap, when the trap is called from flush_child. This call | |
4332 | had better not cause jobs to disappear from the job table in | |
4333 | that case, or we will have big trouble. */ | |
b80f6443 | 4334 | notify_and_cleanup (); |
28ef6c31 | 4335 | #else /* !JOB_CONTROL */ |
b80f6443 | 4336 | cleanup_dead_jobs (); |
28ef6c31 | 4337 | #endif /* !JOB_CONTROL */ |
b80f6443 | 4338 | } |
ccc6cda3 | 4339 | |
28ef6c31 | 4340 | #if defined (READLINE) |
b80f6443 | 4341 | if (no_line_editing && SHOULD_PROMPT()) |
28ef6c31 | 4342 | #else |
b80f6443 | 4343 | if (SHOULD_PROMPT()) |
28ef6c31 JA |
4344 | #endif |
4345 | print_prompt (); | |
726f6388 | 4346 | |
28ef6c31 JA |
4347 | if (bash_input.type == st_stream) |
4348 | clearerr (stdin); | |
726f6388 | 4349 | |
28ef6c31 JA |
4350 | while (1) |
4351 | { | |
4352 | c = yy_getc (); | |
4353 | ||
4354 | /* Allow immediate exit if interrupted during input. */ | |
4355 | QUIT; | |
4356 | ||
4357 | if (c == '\0') | |
4358 | { | |
4359 | #if 0 | |
4360 | internal_warning ("shell_getc: ignored null byte in input"); | |
ccc6cda3 | 4361 | #endif |
28ef6c31 JA |
4362 | continue; |
4363 | } | |
ccc6cda3 | 4364 | |
28ef6c31 | 4365 | RESIZE_MALLOCED_BUFFER (shell_input_line, i, 2, shell_input_line_size, 256); |
726f6388 | 4366 | |
28ef6c31 JA |
4367 | if (c == EOF) |
4368 | { | |
4369 | if (bash_input.type == st_stream) | |
4370 | clearerr (stdin); | |
726f6388 | 4371 | |
28ef6c31 JA |
4372 | if (i == 0) |
4373 | shell_input_line_terminator = EOF; | |
726f6388 | 4374 | |
28ef6c31 JA |
4375 | shell_input_line[i] = '\0'; |
4376 | break; | |
4377 | } | |
726f6388 | 4378 | |
28ef6c31 | 4379 | shell_input_line[i++] = c; |
726f6388 | 4380 | |
28ef6c31 JA |
4381 | if (c == '\n') |
4382 | { | |
4383 | shell_input_line[--i] = '\0'; | |
4384 | current_command_line_count++; | |
4385 | break; | |
4386 | } | |
4387 | } | |
726f6388 | 4388 | |
28ef6c31 JA |
4389 | shell_input_line_index = 0; |
4390 | shell_input_line_len = i; /* == strlen (shell_input_line) */ | |
ccc6cda3 | 4391 | |
7117c2d2 JA |
4392 | set_line_mbstate (); |
4393 | ||
28ef6c31 JA |
4394 | #if defined (HISTORY) |
4395 | if (remember_on_history && shell_input_line && shell_input_line[0]) | |
4396 | { | |
4397 | char *expansions; | |
4398 | # if defined (BANG_HISTORY) | |
4399 | int old_hist; | |
726f6388 | 4400 | |
28ef6c31 JA |
4401 | /* If the current delimiter is a single quote, we should not be |
4402 | performing history expansion, even if we're on a different | |
4403 | line from the original single quote. */ | |
4404 | old_hist = history_expansion_inhibited; | |
4405 | if (current_delimiter (dstack) == '\'') | |
4406 | history_expansion_inhibited = 1; | |
4407 | # endif | |
4408 | expansions = pre_process_line (shell_input_line, 1, 1); | |
4409 | # if defined (BANG_HISTORY) | |
4410 | history_expansion_inhibited = old_hist; | |
4411 | # endif | |
4412 | if (expansions != shell_input_line) | |
4413 | { | |
4414 | free (shell_input_line); | |
4415 | shell_input_line = expansions; | |
4416 | shell_input_line_len = shell_input_line ? | |
4417 | strlen (shell_input_line) : 0; | |
4418 | if (!shell_input_line_len) | |
4419 | current_command_line_count--; | |
726f6388 | 4420 | |
28ef6c31 JA |
4421 | /* We have to force the xrealloc below because we don't know |
4422 | the true allocated size of shell_input_line anymore. */ | |
4423 | shell_input_line_size = shell_input_line_len; | |
7117c2d2 JA |
4424 | |
4425 | set_line_mbstate (); | |
28ef6c31 JA |
4426 | } |
4427 | } | |
4428 | /* Try to do something intelligent with blank lines encountered while | |
4429 | entering multi-line commands. XXX - this is grotesque */ | |
4430 | else if (remember_on_history && shell_input_line && | |
4431 | shell_input_line[0] == '\0' && | |
4432 | current_command_line_count > 1) | |
726f6388 | 4433 | { |
28ef6c31 JA |
4434 | if (current_delimiter (dstack)) |
4435 | /* We know shell_input_line[0] == 0 and we're reading some sort of | |
4436 | quoted string. This means we've got a line consisting of only | |
4437 | a newline in a quoted string. We want to make sure this line | |
4438 | gets added to the history. */ | |
4439 | maybe_add_history (shell_input_line); | |
4440 | else | |
4441 | { | |
4442 | char *hdcs; | |
4443 | hdcs = history_delimiting_chars (); | |
4444 | if (hdcs && hdcs[0] == ';') | |
4445 | maybe_add_history (shell_input_line); | |
4446 | } | |
726f6388 JA |
4447 | } |
4448 | ||
28ef6c31 | 4449 | #endif /* HISTORY */ |
726f6388 | 4450 | |
28ef6c31 | 4451 | if (shell_input_line) |
726f6388 | 4452 | { |
28ef6c31 JA |
4453 | /* Lines that signify the end of the shell's input should not be |
4454 | echoed. */ | |
4455 | if (echo_input_at_read && (shell_input_line[0] || | |
4456 | shell_input_line_terminator != EOF)) | |
4457 | fprintf (stderr, "%s\n", shell_input_line); | |
4458 | } | |
4459 | else | |
4460 | { | |
4461 | shell_input_line_size = 0; | |
4462 | prompt_string_pointer = ¤t_prompt_string; | |
b80f6443 JA |
4463 | if (SHOULD_PROMPT ()) |
4464 | prompt_again (); | |
28ef6c31 | 4465 | goto restart_read; |
726f6388 JA |
4466 | } |
4467 | ||
28ef6c31 JA |
4468 | /* Add the newline to the end of this string, iff the string does |
4469 | not already end in an EOF character. */ | |
4470 | if (shell_input_line_terminator != EOF) | |
4471 | { | |
4472 | if (shell_input_line_len + 3 > shell_input_line_size) | |
f73dda09 | 4473 | shell_input_line = (char *)xrealloc (shell_input_line, |
28ef6c31 | 4474 | 1 + (shell_input_line_size += 2)); |
726f6388 | 4475 | |
28ef6c31 JA |
4476 | shell_input_line[shell_input_line_len] = '\n'; |
4477 | shell_input_line[shell_input_line_len + 1] = '\0'; | |
7117c2d2 JA |
4478 | |
4479 | set_line_mbstate (); | |
28ef6c31 JA |
4480 | } |
4481 | } | |
726f6388 | 4482 | |
f73dda09 | 4483 | uc = shell_input_line[shell_input_line_index]; |
ccc6cda3 | 4484 | |
f73dda09 | 4485 | if (uc) |
28ef6c31 | 4486 | shell_input_line_index++; |
726f6388 | 4487 | |
28ef6c31 | 4488 | #if defined (ALIAS) || defined (DPAREN_ARITHMETIC) |
f73dda09 | 4489 | /* If UC is NULL, we have reached the end of the current input string. If |
28ef6c31 JA |
4490 | pushed_string_list is non-empty, it's time to pop to the previous string |
4491 | because we have fully consumed the result of the last alias expansion. | |
4492 | Do it transparently; just return the next character of the string popped | |
4493 | to. */ | |
f73dda09 | 4494 | if (!uc && (pushed_string_list != (STRING_SAVER *)NULL)) |
726f6388 | 4495 | { |
b80f6443 JA |
4496 | pop_string (); |
4497 | uc = shell_input_line[shell_input_line_index]; | |
4498 | if (uc) | |
4499 | shell_input_line_index++; | |
726f6388 | 4500 | } |
28ef6c31 JA |
4501 | #endif /* ALIAS || DPAREN_ARITHMETIC */ |
4502 | ||
95732b49 JA |
4503 | if MBTEST(uc == '\\' && remove_quoted_newline && shell_input_line[shell_input_line_index] == '\n') |
4504 | { | |
4505 | if (SHOULD_PROMPT ()) | |
4506 | prompt_again (); | |
4507 | line_number++; | |
4508 | goto restart_read; | |
4509 | } | |
4510 | ||
f73dda09 | 4511 | if (!uc && shell_input_line_terminator == EOF) |
28ef6c31 JA |
4512 | return ((shell_input_line_index != 0) ? '\n' : EOF); |
4513 | ||
f73dda09 | 4514 | return (uc); |
726f6388 JA |
4515 | } |
4516 | ||
7117c2d2 JA |
4517 | /* Put C back into the input for the shell. This might need changes for |
4518 | HANDLE_MULTIBYTE around EOLs. Since we (currently) never push back a | |
4519 | character different than we read, shell_input_line_property doesn't need | |
4520 | to change when manipulating shell_input_line. The define for | |
4521 | last_shell_getc_is_singlebyte should take care of it, though. */ | |
28ef6c31 JA |
4522 | static void |
4523 | shell_ungetc (c) | |
ccc6cda3 | 4524 | int c; |
726f6388 | 4525 | { |
28ef6c31 JA |
4526 | if (shell_input_line && shell_input_line_index) |
4527 | shell_input_line[--shell_input_line_index] = c; | |
4528 | else | |
4529 | eol_ungetc_lookahead = c; | |
726f6388 JA |
4530 | } |
4531 | ||
f73dda09 JA |
4532 | #ifdef INCLUDE_UNUSED |
4533 | /* Back the input pointer up by one, effectively `ungetting' a character. */ | |
28ef6c31 JA |
4534 | static void |
4535 | shell_ungetchar () | |
726f6388 | 4536 | { |
28ef6c31 JA |
4537 | if (shell_input_line && shell_input_line_index) |
4538 | shell_input_line_index--; | |
726f6388 | 4539 | } |
f73dda09 | 4540 | #endif |
726f6388 | 4541 | |
28ef6c31 JA |
4542 | /* Discard input until CHARACTER is seen, then push that character back |
4543 | onto the input stream. */ | |
4544 | static void | |
4545 | discard_until (character) | |
4546 | int character; | |
726f6388 | 4547 | { |
28ef6c31 | 4548 | int c; |
726f6388 | 4549 | |
28ef6c31 JA |
4550 | while ((c = shell_getc (0)) != EOF && c != character) |
4551 | ; | |
726f6388 | 4552 | |
28ef6c31 JA |
4553 | if (c != EOF) |
4554 | shell_ungetc (c); | |
4555 | } | |
726f6388 | 4556 | |
28ef6c31 | 4557 | void |
0628567a JA |
4558 | execute_variable_command (command, vname) |
4559 | char *command, *vname; | |
28ef6c31 | 4560 | { |
28ef6c31 | 4561 | char *last_lastarg; |
b80f6443 | 4562 | sh_parser_state_t ps; |
726f6388 | 4563 | |
b80f6443 | 4564 | save_parser_state (&ps); |
28ef6c31 JA |
4565 | last_lastarg = get_string_value ("_"); |
4566 | if (last_lastarg) | |
4567 | last_lastarg = savestring (last_lastarg); | |
726f6388 | 4568 | |
0628567a | 4569 | parse_and_execute (savestring (command), vname, SEVAL_NONINT|SEVAL_NOHIST); |
726f6388 | 4570 | |
b80f6443 | 4571 | restore_parser_state (&ps); |
95732b49 | 4572 | bind_variable ("_", last_lastarg, 0); |
28ef6c31 JA |
4573 | FREE (last_lastarg); |
4574 | ||
4575 | if (token_to_read == '\n') /* reset_parser was called */ | |
4576 | token_to_read = 0; | |
726f6388 JA |
4577 | } |
4578 | ||
28ef6c31 JA |
4579 | /* Place to remember the token. We try to keep the buffer |
4580 | at a reasonable size, but it can grow. */ | |
4581 | static char *token = (char *)NULL; | |
726f6388 | 4582 | |
28ef6c31 JA |
4583 | /* Current size of the token buffer. */ |
4584 | static int token_buffer_size; | |
4585 | ||
4586 | /* Command to read_token () explaining what we want it to do. */ | |
4587 | #define READ 0 | |
4588 | #define RESET 1 | |
4589 | #define prompt_is_ps1 \ | |
4590 | (!prompt_string_pointer || prompt_string_pointer == &ps1_prompt) | |
bb70624e | 4591 | |
28ef6c31 JA |
4592 | /* Function for yyparse to call. yylex keeps track of |
4593 | the last two tokens read, and calls read_token. */ | |
726f6388 | 4594 | static int |
28ef6c31 | 4595 | yylex () |
726f6388 | 4596 | { |
28ef6c31 JA |
4597 | if (interactive && (current_token == 0 || current_token == '\n')) |
4598 | { | |
4599 | /* Before we print a prompt, we might have to check mailboxes. | |
4600 | We do this only if it is time to do so. Notice that only here | |
4601 | is the mail alarm reset; nothing takes place in check_mail () | |
4602 | except the checking of mail. Please don't change this. */ | |
4603 | if (prompt_is_ps1 && time_to_check_mail ()) | |
4604 | { | |
4605 | check_mail (); | |
4606 | reset_mail_timer (); | |
4607 | } | |
726f6388 | 4608 | |
28ef6c31 JA |
4609 | /* Avoid printing a prompt if we're not going to read anything, e.g. |
4610 | after resetting the parser with read_token (RESET). */ | |
b80f6443 | 4611 | if (token_to_read == 0 && SHOULD_PROMPT ()) |
28ef6c31 JA |
4612 | prompt_again (); |
4613 | } | |
bb70624e | 4614 | |
28ef6c31 JA |
4615 | two_tokens_ago = token_before_that; |
4616 | token_before_that = last_read_token; | |
4617 | last_read_token = current_token; | |
4618 | current_token = read_token (READ); | |
3185942a JA |
4619 | |
4620 | if ((parser_state & PST_EOFTOKEN) && current_token == shell_eof_token) | |
4621 | { | |
4622 | current_token = yacc_EOF; | |
4623 | if (bash_input.type == st_string) | |
4624 | rewind_input_string (); | |
4625 | } | |
4626 | parser_state &= ~PST_EOFTOKEN; | |
4627 | ||
28ef6c31 | 4628 | return (current_token); |
726f6388 JA |
4629 | } |
4630 | ||
28ef6c31 JA |
4631 | /* When non-zero, we have read the required tokens |
4632 | which allow ESAC to be the next one read. */ | |
4633 | static int esacs_needed_count; | |
726f6388 JA |
4634 | |
4635 | void | |
28ef6c31 | 4636 | gather_here_documents () |
726f6388 | 4637 | { |
3185942a JA |
4638 | int r; |
4639 | ||
4640 | r = 0; | |
28ef6c31 JA |
4641 | while (need_here_doc) |
4642 | { | |
3185942a JA |
4643 | parser_state |= PST_HEREDOC; |
4644 | make_here_document (redir_stack[r++], line_number); | |
4645 | parser_state &= ~PST_HEREDOC; | |
28ef6c31 JA |
4646 | need_here_doc--; |
4647 | } | |
726f6388 JA |
4648 | } |
4649 | ||
28ef6c31 JA |
4650 | /* When non-zero, an open-brace used to create a group is awaiting a close |
4651 | brace partner. */ | |
4652 | static int open_brace_count; | |
726f6388 | 4653 | |
28ef6c31 JA |
4654 | #define command_token_position(token) \ |
4655 | (((token) == ASSIGNMENT_WORD) || \ | |
3185942a | 4656 | ((token) != SEMI_SEMI && (token) != SEMI_AND && (token) != SEMI_SEMI_AND && reserved_word_acceptable(token))) |
cce855bc | 4657 | |
b80f6443 JA |
4658 | #define assignment_acceptable(token) \ |
4659 | (command_token_position(token) && ((parser_state & PST_CASEPAT) == 0)) | |
726f6388 | 4660 | |
28ef6c31 JA |
4661 | /* Check to see if TOKEN is a reserved word and return the token |
4662 | value if it is. */ | |
4663 | #define CHECK_FOR_RESERVED_WORD(tok) \ | |
4664 | do { \ | |
4665 | if (!dollar_present && !quoted && \ | |
4666 | reserved_word_acceptable (last_read_token)) \ | |
4667 | { \ | |
4668 | int i; \ | |
4669 | for (i = 0; word_token_alist[i].word != (char *)NULL; i++) \ | |
4670 | if (STREQ (tok, word_token_alist[i].word)) \ | |
4671 | { \ | |
4672 | if ((parser_state & PST_CASEPAT) && (word_token_alist[i].token != ESAC)) \ | |
4673 | break; \ | |
b80f6443 | 4674 | if (word_token_alist[i].token == TIME && time_command_acceptable () == 0) \ |
28ef6c31 JA |
4675 | break; \ |
4676 | if (word_token_alist[i].token == ESAC) \ | |
4677 | parser_state &= ~(PST_CASEPAT|PST_CASESTMT); \ | |
4678 | else if (word_token_alist[i].token == CASE) \ | |
4679 | parser_state |= PST_CASESTMT; \ | |
4680 | else if (word_token_alist[i].token == COND_END) \ | |
4681 | parser_state &= ~(PST_CONDCMD|PST_CONDEXPR); \ | |
4682 | else if (word_token_alist[i].token == COND_START) \ | |
4683 | parser_state |= PST_CONDCMD; \ | |
4684 | else if (word_token_alist[i].token == '{') \ | |
4685 | open_brace_count++; \ | |
4686 | else if (word_token_alist[i].token == '}' && open_brace_count) \ | |
4687 | open_brace_count--; \ | |
4688 | return (word_token_alist[i].token); \ | |
4689 | } \ | |
4690 | } \ | |
4691 | } while (0) | |
726f6388 | 4692 | |
28ef6c31 | 4693 | #if defined (ALIAS) |
726f6388 | 4694 | |
28ef6c31 JA |
4695 | /* OK, we have a token. Let's try to alias expand it, if (and only if) |
4696 | it's eligible. | |
726f6388 | 4697 | |
7117c2d2 | 4698 | It is eligible for expansion if EXPAND_ALIASES is set, and |
28ef6c31 JA |
4699 | the token is unquoted and the last token read was a command |
4700 | separator (or expand_next_token is set), and we are currently | |
4701 | processing an alias (pushed_string_list is non-empty) and this | |
4702 | token is not the same as the current or any previously | |
4703 | processed alias. | |
726f6388 | 4704 | |
28ef6c31 JA |
4705 | Special cases that disqualify: |
4706 | In a pattern list in a case statement (parser_state & PST_CASEPAT). */ | |
b80f6443 JA |
4707 | |
4708 | static char * | |
4709 | mk_alexpansion (s) | |
4710 | char *s; | |
4711 | { | |
4712 | int l; | |
4713 | char *r; | |
4714 | ||
4715 | l = strlen (s); | |
4716 | r = xmalloc (l + 2); | |
4717 | strcpy (r, s); | |
4718 | if (r[l -1] != ' ') | |
4719 | r[l++] = ' '; | |
4720 | r[l] = '\0'; | |
4721 | return r; | |
4722 | } | |
4723 | ||
28ef6c31 | 4724 | static int |
f73dda09 JA |
4725 | alias_expand_token (tokstr) |
4726 | char *tokstr; | |
726f6388 | 4727 | { |
28ef6c31 JA |
4728 | char *expanded; |
4729 | alias_t *ap; | |
4730 | ||
4731 | if (((parser_state & PST_ALEXPNEXT) || command_token_position (last_read_token)) && | |
4732 | (parser_state & PST_CASEPAT) == 0) | |
726f6388 | 4733 | { |
f73dda09 | 4734 | ap = find_alias (tokstr); |
726f6388 | 4735 | |
28ef6c31 JA |
4736 | /* Currently expanding this token. */ |
4737 | if (ap && (ap->flags & AL_BEINGEXPANDED)) | |
4738 | return (NO_EXPANSION); | |
726f6388 | 4739 | |
b80f6443 JA |
4740 | /* mk_alexpansion puts an extra space on the end of the alias expansion, |
4741 | so the lookahead by the parser works right. If this gets changed, | |
4742 | make sure the code in shell_getc that deals with reaching the end of | |
4743 | an expanded alias is changed with it. */ | |
4744 | expanded = ap ? mk_alexpansion (ap->value) : (char *)NULL; | |
4745 | ||
28ef6c31 JA |
4746 | if (expanded) |
4747 | { | |
4748 | push_string (expanded, ap->flags & AL_EXPANDNEXT, ap); | |
4749 | return (RE_READ_TOKEN); | |
4750 | } | |
4751 | else | |
4752 | /* This is an eligible token that does not have an expansion. */ | |
4753 | return (NO_EXPANSION); | |
4754 | } | |
4755 | return (NO_EXPANSION); | |
4756 | } | |
4757 | #endif /* ALIAS */ | |
726f6388 | 4758 | |
28ef6c31 JA |
4759 | static int |
4760 | time_command_acceptable () | |
726f6388 | 4761 | { |
28ef6c31 JA |
4762 | #if defined (COMMAND_TIMING) |
4763 | switch (last_read_token) | |
4764 | { | |
4765 | case 0: | |
4766 | case ';': | |
4767 | case '\n': | |
4768 | case AND_AND: | |
4769 | case OR_OR: | |
4770 | case '&': | |
4771 | case DO: | |
4772 | case THEN: | |
4773 | case ELSE: | |
4774 | case '{': /* } */ | |
4775 | case '(': /* ) */ | |
726f6388 | 4776 | return 1; |
28ef6c31 JA |
4777 | default: |
4778 | return 0; | |
4779 | } | |
4780 | #else | |
726f6388 | 4781 | return 0; |
28ef6c31 | 4782 | #endif /* COMMAND_TIMING */ |
726f6388 JA |
4783 | } |
4784 | ||
28ef6c31 JA |
4785 | /* Handle special cases of token recognition: |
4786 | IN is recognized if the last token was WORD and the token | |
4787 | before that was FOR or CASE or SELECT. | |
726f6388 | 4788 | |
28ef6c31 JA |
4789 | DO is recognized if the last token was WORD and the token |
4790 | before that was FOR or SELECT. | |
cce855bc | 4791 | |
28ef6c31 JA |
4792 | ESAC is recognized if the last token caused `esacs_needed_count' |
4793 | to be set | |
ccc6cda3 | 4794 | |
28ef6c31 JA |
4795 | `{' is recognized if the last token as WORD and the token |
4796 | before that was FUNCTION, or if we just parsed an arithmetic | |
4797 | `for' command. | |
ccc6cda3 | 4798 | |
28ef6c31 | 4799 | `}' is recognized if there is an unclosed `{' present. |
726f6388 | 4800 | |
28ef6c31 | 4801 | `-p' is returned as TIMEOPT if the last read token was TIME. |
726f6388 | 4802 | |
28ef6c31 JA |
4803 | ']]' is returned as COND_END if the parser is currently parsing |
4804 | a conditional expression ((parser_state & PST_CONDEXPR) != 0) | |
726f6388 | 4805 | |
28ef6c31 JA |
4806 | `time' is returned as TIME if and only if it is immediately |
4807 | preceded by one of `;', `\n', `||', `&&', or `&'. | |
4808 | */ | |
726f6388 | 4809 | |
28ef6c31 | 4810 | static int |
f73dda09 JA |
4811 | special_case_tokens (tokstr) |
4812 | char *tokstr; | |
726f6388 | 4813 | { |
28ef6c31 JA |
4814 | if ((last_read_token == WORD) && |
4815 | #if defined (SELECT_COMMAND) | |
4816 | ((token_before_that == FOR) || (token_before_that == CASE) || (token_before_that == SELECT)) && | |
4817 | #else | |
4818 | ((token_before_that == FOR) || (token_before_that == CASE)) && | |
cce855bc | 4819 | #endif |
f73dda09 | 4820 | (tokstr[0] == 'i' && tokstr[1] == 'n' && tokstr[2] == 0)) |
28ef6c31 JA |
4821 | { |
4822 | if (token_before_that == CASE) | |
4823 | { | |
4824 | parser_state |= PST_CASEPAT; | |
4825 | esacs_needed_count++; | |
4826 | } | |
4827 | return (IN); | |
4828 | } | |
726f6388 | 4829 | |
28ef6c31 JA |
4830 | if (last_read_token == WORD && |
4831 | #if defined (SELECT_COMMAND) | |
4832 | (token_before_that == FOR || token_before_that == SELECT) && | |
4833 | #else | |
4834 | (token_before_that == FOR) && | |
cce855bc | 4835 | #endif |
f73dda09 | 4836 | (tokstr[0] == 'd' && tokstr[1] == 'o' && tokstr[2] == '\0')) |
28ef6c31 | 4837 | return (DO); |
726f6388 | 4838 | |
28ef6c31 JA |
4839 | /* Ditto for ESAC in the CASE case. |
4840 | Specifically, this handles "case word in esac", which is a legal | |
4841 | construct, certainly because someone will pass an empty arg to the | |
4842 | case construct, and we don't want it to barf. Of course, we should | |
4843 | insist that the case construct has at least one pattern in it, but | |
4844 | the designers disagree. */ | |
4845 | if (esacs_needed_count) | |
4846 | { | |
4847 | esacs_needed_count--; | |
f73dda09 | 4848 | if (STREQ (tokstr, "esac")) |
28ef6c31 JA |
4849 | { |
4850 | parser_state &= ~PST_CASEPAT; | |
4851 | return (ESAC); | |
4852 | } | |
4853 | } | |
726f6388 | 4854 | |
28ef6c31 JA |
4855 | /* The start of a shell function definition. */ |
4856 | if (parser_state & PST_ALLOWOPNBRC) | |
4857 | { | |
4858 | parser_state &= ~PST_ALLOWOPNBRC; | |
f73dda09 | 4859 | if (tokstr[0] == '{' && tokstr[1] == '\0') /* } */ |
28ef6c31 JA |
4860 | { |
4861 | open_brace_count++; | |
4862 | function_bstart = line_number; | |
4863 | return ('{'); /* } */ | |
4864 | } | |
4865 | } | |
726f6388 | 4866 | |
28ef6c31 JA |
4867 | /* We allow a `do' after a for ((...)) without an intervening |
4868 | list_terminator */ | |
f73dda09 | 4869 | if (last_read_token == ARITH_FOR_EXPRS && tokstr[0] == 'd' && tokstr[1] == 'o' && !tokstr[2]) |
28ef6c31 | 4870 | return (DO); |
f73dda09 | 4871 | if (last_read_token == ARITH_FOR_EXPRS && tokstr[0] == '{' && tokstr[1] == '\0') /* } */ |
28ef6c31 JA |
4872 | { |
4873 | open_brace_count++; | |
4874 | return ('{'); /* } */ | |
4875 | } | |
726f6388 | 4876 | |
f73dda09 | 4877 | if (open_brace_count && reserved_word_acceptable (last_read_token) && tokstr[0] == '}' && !tokstr[1]) |
28ef6c31 JA |
4878 | { |
4879 | open_brace_count--; /* { */ | |
4880 | return ('}'); | |
4881 | } | |
ccc6cda3 | 4882 | |
28ef6c31 JA |
4883 | #if defined (COMMAND_TIMING) |
4884 | /* Handle -p after `time'. */ | |
f73dda09 | 4885 | if (last_read_token == TIME && tokstr[0] == '-' && tokstr[1] == 'p' && !tokstr[2]) |
28ef6c31 JA |
4886 | return (TIMEOPT); |
4887 | #endif | |
ccc6cda3 | 4888 | |
b80f6443 | 4889 | #if 0 |
28ef6c31 JA |
4890 | #if defined (COMMAND_TIMING) |
4891 | if (STREQ (token, "time") && ((parser_state & PST_CASEPAT) == 0) && time_command_acceptable ()) | |
4892 | return (TIME); | |
4893 | #endif /* COMMAND_TIMING */ | |
b80f6443 | 4894 | #endif |
28ef6c31 JA |
4895 | |
4896 | #if defined (COND_COMMAND) /* [[ */ | |
f73dda09 | 4897 | if ((parser_state & PST_CONDEXPR) && tokstr[0] == ']' && tokstr[1] == ']' && tokstr[2] == '\0') |
28ef6c31 | 4898 | return (COND_END); |
cce855bc | 4899 | #endif |
ccc6cda3 | 4900 | |
28ef6c31 | 4901 | return (-1); |
726f6388 JA |
4902 | } |
4903 | ||
28ef6c31 JA |
4904 | /* Called from shell.c when Control-C is typed at top level. Or |
4905 | by the error rule at top level. */ | |
4906 | void | |
4907 | reset_parser () | |
726f6388 | 4908 | { |
28ef6c31 JA |
4909 | dstack.delimiter_depth = 0; /* No delimiters found so far. */ |
4910 | open_brace_count = 0; | |
726f6388 | 4911 | |
28ef6c31 | 4912 | parser_state = 0; |
726f6388 | 4913 | |
28ef6c31 JA |
4914 | #if defined (ALIAS) || defined (DPAREN_ARITHMETIC) |
4915 | if (pushed_string_list) | |
4916 | free_string_list (); | |
cce855bc | 4917 | #endif /* ALIAS || DPAREN_ARITHMETIC */ |
ccc6cda3 | 4918 | |
28ef6c31 | 4919 | if (shell_input_line) |
726f6388 | 4920 | { |
28ef6c31 JA |
4921 | free (shell_input_line); |
4922 | shell_input_line = (char *)NULL; | |
4923 | shell_input_line_size = shell_input_line_index = 0; | |
4924 | } | |
726f6388 | 4925 | |
28ef6c31 JA |
4926 | FREE (word_desc_to_read); |
4927 | word_desc_to_read = (WORD_DESC *)NULL; | |
726f6388 | 4928 | |
28ef6c31 JA |
4929 | last_read_token = '\n'; |
4930 | token_to_read = '\n'; | |
4931 | } | |
726f6388 | 4932 | |
28ef6c31 JA |
4933 | /* Read the next token. Command can be READ (normal operation) or |
4934 | RESET (to normalize state). */ | |
4935 | static int | |
4936 | read_token (command) | |
4937 | int command; | |
4938 | { | |
4939 | int character; /* Current character. */ | |
4940 | int peek_char; /* Temporary look-ahead character. */ | |
4941 | int result; /* The thing to return. */ | |
726f6388 | 4942 | |
28ef6c31 JA |
4943 | if (command == RESET) |
4944 | { | |
4945 | reset_parser (); | |
4946 | return ('\n'); | |
4947 | } | |
726f6388 | 4948 | |
28ef6c31 JA |
4949 | if (token_to_read) |
4950 | { | |
4951 | result = token_to_read; | |
4952 | if (token_to_read == WORD || token_to_read == ASSIGNMENT_WORD) | |
726f6388 | 4953 | { |
28ef6c31 JA |
4954 | yylval.word = word_desc_to_read; |
4955 | word_desc_to_read = (WORD_DESC *)NULL; | |
726f6388 | 4956 | } |
28ef6c31 JA |
4957 | token_to_read = 0; |
4958 | return (result); | |
4959 | } | |
726f6388 | 4960 | |
28ef6c31 JA |
4961 | #if defined (COND_COMMAND) |
4962 | if ((parser_state & (PST_CONDCMD|PST_CONDEXPR)) == PST_CONDCMD) | |
4963 | { | |
4964 | cond_lineno = line_number; | |
4965 | parser_state |= PST_CONDEXPR; | |
4966 | yylval.command = parse_cond_command (); | |
4967 | if (cond_token != COND_END) | |
726f6388 | 4968 | { |
7117c2d2 | 4969 | cond_error (); |
28ef6c31 | 4970 | return (-1); |
726f6388 | 4971 | } |
28ef6c31 JA |
4972 | token_to_read = COND_END; |
4973 | parser_state &= ~(PST_CONDEXPR|PST_CONDCMD); | |
4974 | return (COND_CMD); | |
726f6388 | 4975 | } |
cce855bc | 4976 | #endif |
726f6388 | 4977 | |
28ef6c31 JA |
4978 | #if defined (ALIAS) |
4979 | /* This is a place to jump back to once we have successfully expanded a | |
4980 | token with an alias and pushed the string with push_string () */ | |
4981 | re_read_token: | |
4982 | #endif /* ALIAS */ | |
ccc6cda3 | 4983 | |
28ef6c31 | 4984 | /* Read a single word from input. Start by skipping blanks. */ |
0628567a | 4985 | while ((character = shell_getc (1)) != EOF && shellblank (character)) |
28ef6c31 | 4986 | ; |
ccc6cda3 | 4987 | |
28ef6c31 JA |
4988 | if (character == EOF) |
4989 | { | |
4990 | EOF_Reached = 1; | |
4991 | return (yacc_EOF); | |
4992 | } | |
ccc6cda3 | 4993 | |
7117c2d2 | 4994 | if MBTEST(character == '#' && (!interactive || interactive_comments)) |
28ef6c31 JA |
4995 | { |
4996 | /* A comment. Discard until EOL or EOF, and then return a newline. */ | |
4997 | discard_until ('\n'); | |
4998 | shell_getc (0); | |
4999 | character = '\n'; /* this will take the next if statement and return. */ | |
5000 | } | |
ccc6cda3 | 5001 | |
28ef6c31 JA |
5002 | if (character == '\n') |
5003 | { | |
5004 | /* If we're about to return an unquoted newline, we can go and collect | |
5005 | the text of any pending here document. */ | |
5006 | if (need_here_doc) | |
5007 | gather_here_documents (); | |
ccc6cda3 | 5008 | |
28ef6c31 JA |
5009 | #if defined (ALIAS) |
5010 | parser_state &= ~PST_ALEXPNEXT; | |
5011 | #endif /* ALIAS */ | |
ccc6cda3 | 5012 | |
95732b49 JA |
5013 | parser_state &= ~PST_ASSIGNOK; |
5014 | ||
28ef6c31 JA |
5015 | return (character); |
5016 | } | |
726f6388 | 5017 | |
3185942a JA |
5018 | if (parser_state & PST_REGEXP) |
5019 | goto tokword; | |
5020 | ||
28ef6c31 | 5021 | /* Shell meta-characters. */ |
7117c2d2 | 5022 | if MBTEST(shellmeta (character) && ((parser_state & PST_DBLPAREN) == 0)) |
28ef6c31 JA |
5023 | { |
5024 | #if defined (ALIAS) | |
5025 | /* Turn off alias tokenization iff this character sequence would | |
5026 | not leave us ready to read a command. */ | |
5027 | if (character == '<' || character == '>') | |
5028 | parser_state &= ~PST_ALEXPNEXT; | |
5029 | #endif /* ALIAS */ | |
726f6388 | 5030 | |
95732b49 JA |
5031 | parser_state &= ~PST_ASSIGNOK; |
5032 | ||
28ef6c31 JA |
5033 | peek_char = shell_getc (1); |
5034 | if (character == peek_char) | |
5035 | { | |
5036 | switch (character) | |
5037 | { | |
5038 | case '<': | |
5039 | /* If '<' then we could be at "<<" or at "<<-". We have to | |
5040 | look ahead one more character. */ | |
5041 | peek_char = shell_getc (1); | |
3185942a | 5042 | if MBTEST(peek_char == '-') |
28ef6c31 | 5043 | return (LESS_LESS_MINUS); |
3185942a | 5044 | else if MBTEST(peek_char == '<') |
7117c2d2 | 5045 | return (LESS_LESS_LESS); |
28ef6c31 JA |
5046 | else |
5047 | { | |
5048 | shell_ungetc (peek_char); | |
5049 | return (LESS_LESS); | |
5050 | } | |
726f6388 | 5051 | |
28ef6c31 JA |
5052 | case '>': |
5053 | return (GREATER_GREATER); | |
726f6388 | 5054 | |
28ef6c31 JA |
5055 | case ';': |
5056 | parser_state |= PST_CASEPAT; | |
5057 | #if defined (ALIAS) | |
5058 | parser_state &= ~PST_ALEXPNEXT; | |
5059 | #endif /* ALIAS */ | |
95732b49 | 5060 | |
3185942a JA |
5061 | peek_char = shell_getc (1); |
5062 | if MBTEST(peek_char == '&') | |
5063 | return (SEMI_SEMI_AND); | |
5064 | else | |
5065 | { | |
5066 | shell_ungetc (peek_char); | |
5067 | return (SEMI_SEMI); | |
5068 | } | |
726f6388 | 5069 | |
28ef6c31 JA |
5070 | case '&': |
5071 | return (AND_AND); | |
726f6388 | 5072 | |
28ef6c31 JA |
5073 | case '|': |
5074 | return (OR_OR); | |
726f6388 | 5075 | |
28ef6c31 JA |
5076 | #if defined (DPAREN_ARITHMETIC) || defined (ARITH_FOR_COMMAND) |
5077 | case '(': /* ) */ | |
7117c2d2 JA |
5078 | result = parse_dparen (character); |
5079 | if (result == -2) | |
5080 | break; | |
5081 | else | |
5082 | return result; | |
726f6388 | 5083 | #endif |
28ef6c31 JA |
5084 | } |
5085 | } | |
7117c2d2 | 5086 | else if MBTEST(character == '<' && peek_char == '&') |
28ef6c31 | 5087 | return (LESS_AND); |
7117c2d2 | 5088 | else if MBTEST(character == '>' && peek_char == '&') |
28ef6c31 | 5089 | return (GREATER_AND); |
7117c2d2 | 5090 | else if MBTEST(character == '<' && peek_char == '>') |
28ef6c31 | 5091 | return (LESS_GREATER); |
7117c2d2 | 5092 | else if MBTEST(character == '>' && peek_char == '|') |
28ef6c31 | 5093 | return (GREATER_BAR); |
3185942a JA |
5094 | else if MBTEST(character == '&' && peek_char == '>') |
5095 | { | |
5096 | peek_char = shell_getc (1); | |
5097 | if MBTEST(peek_char == '>') | |
5098 | return (AND_GREATER_GREATER); | |
5099 | else | |
5100 | { | |
5101 | shell_ungetc (peek_char); | |
5102 | return (AND_GREATER); | |
5103 | } | |
5104 | } | |
5105 | else if MBTEST(character == '|' && peek_char == '&') | |
5106 | return (BAR_AND); | |
5107 | else if MBTEST(character == ';' && peek_char == '&') | |
5108 | { | |
5109 | parser_state |= PST_CASEPAT; | |
5110 | #if defined (ALIAS) | |
5111 | parser_state &= ~PST_ALEXPNEXT; | |
5112 | #endif /* ALIAS */ | |
5113 | return (SEMI_AND); | |
5114 | } | |
726f6388 | 5115 | |
28ef6c31 | 5116 | shell_ungetc (peek_char); |
726f6388 | 5117 | |
28ef6c31 JA |
5118 | /* If we look like we are reading the start of a function |
5119 | definition, then let the reader know about it so that | |
5120 | we will do the right thing with `{'. */ | |
7117c2d2 | 5121 | if MBTEST(character == ')' && last_read_token == '(' && token_before_that == WORD) |
726f6388 | 5122 | { |
28ef6c31 JA |
5123 | parser_state |= PST_ALLOWOPNBRC; |
5124 | #if defined (ALIAS) | |
5125 | parser_state &= ~PST_ALEXPNEXT; | |
5126 | #endif /* ALIAS */ | |
5127 | function_dstart = line_number; | |
5128 | } | |
726f6388 | 5129 | |
28ef6c31 JA |
5130 | /* case pattern lists may be preceded by an optional left paren. If |
5131 | we're not trying to parse a case pattern list, the left paren | |
5132 | indicates a subshell. */ | |
7117c2d2 | 5133 | if MBTEST(character == '(' && (parser_state & PST_CASEPAT) == 0) /* ) */ |
28ef6c31 JA |
5134 | parser_state |= PST_SUBSHELL; |
5135 | /*(*/ | |
7117c2d2 | 5136 | else if MBTEST((parser_state & PST_CASEPAT) && character == ')') |
28ef6c31 JA |
5137 | parser_state &= ~PST_CASEPAT; |
5138 | /*(*/ | |
7117c2d2 | 5139 | else if MBTEST((parser_state & PST_SUBSHELL) && character == ')') |
28ef6c31 | 5140 | parser_state &= ~PST_SUBSHELL; |
726f6388 | 5141 | |
28ef6c31 JA |
5142 | #if defined (PROCESS_SUBSTITUTION) |
5143 | /* Check for the constructs which introduce process substitution. | |
5144 | Shells running in `posix mode' don't do process substitution. */ | |
7117c2d2 | 5145 | if MBTEST(posixly_correct || ((character != '>' && character != '<') || peek_char != '(')) /*)*/ |
28ef6c31 JA |
5146 | #endif /* PROCESS_SUBSTITUTION */ |
5147 | return (character); | |
5148 | } | |
726f6388 | 5149 | |
3185942a JA |
5150 | /* Hack <&- (close stdin) case. Also <&N- (dup and close). */ |
5151 | if MBTEST(character == '-' && (last_read_token == LESS_AND || last_read_token == GREATER_AND)) | |
5152 | return (character); | |
5153 | ||
5154 | tokword: | |
5155 | /* Okay, if we got this far, we have to read a word. Read one, | |
5156 | and then check it against the known ones. */ | |
5157 | result = read_token_word (character); | |
5158 | #if defined (ALIAS) | |
5159 | if (result == RE_READ_TOKEN) | |
5160 | goto re_read_token; | |
5161 | #endif | |
5162 | return result; | |
5163 | } | |
5164 | ||
5165 | /* | |
5166 | * Match a $(...) or other grouping construct. This has to handle embedded | |
5167 | * quoted strings ('', ``, "") and nested constructs. It also must handle | |
5168 | * reprompting the user, if necessary, after reading a newline, and returning | |
5169 | * correct error values if it reads EOF. | |
5170 | */ | |
5171 | #define P_FIRSTCLOSE 0x01 | |
5172 | #define P_ALLOWESC 0x02 | |
5173 | #define P_DQUOTE 0x04 | |
5174 | #define P_COMMAND 0x08 /* parsing a command, so look for comments */ | |
5175 | #define P_BACKQUOTE 0x10 /* parsing a backquoted command substitution */ | |
5176 | ||
5177 | /* Lexical state while parsing a grouping construct or $(...). */ | |
5178 | #define LEX_WASDOL 0x001 | |
5179 | #define LEX_CKCOMMENT 0x002 | |
5180 | #define LEX_INCOMMENT 0x004 | |
5181 | #define LEX_PASSNEXT 0x008 | |
5182 | #define LEX_RESWDOK 0x010 | |
5183 | #define LEX_CKCASE 0x020 | |
5184 | #define LEX_INCASE 0x040 | |
5185 | #define LEX_INHEREDOC 0x080 | |
5186 | #define LEX_HEREDELIM 0x100 /* reading here-doc delimiter */ | |
5187 | #define LEX_STRIPDOC 0x200 /* <<- strip tabs from here doc delim */ | |
5188 | ||
5189 | #define COMSUB_META(ch) ((ch) == ';' || (ch) == '&' || (ch) == '|') | |
5190 | ||
5191 | #define CHECK_NESTRET_ERROR() \ | |
5192 | do { \ | |
5193 | if (nestret == &matched_pair_error) \ | |
5194 | { \ | |
5195 | free (ret); \ | |
5196 | return &matched_pair_error; \ | |
5197 | } \ | |
5198 | } while (0) | |
5199 | ||
5200 | #define APPEND_NESTRET() \ | |
5201 | do { \ | |
5202 | if (nestlen) \ | |
5203 | { \ | |
5204 | RESIZE_MALLOCED_BUFFER (ret, retind, nestlen, retsize, 64); \ | |
5205 | strcpy (ret + retind, nestret); \ | |
5206 | retind += nestlen; \ | |
5207 | } \ | |
5208 | } while (0) | |
5209 | ||
5210 | static char matched_pair_error; | |
5211 | ||
5212 | static char * | |
5213 | parse_matched_pair (qc, open, close, lenp, flags) | |
5214 | int qc; /* `"' if this construct is within double quotes */ | |
5215 | int open, close; | |
5216 | int *lenp, flags; | |
5217 | { | |
5218 | int count, ch, tflags; | |
5219 | int nestlen, ttranslen, start_lineno; | |
5220 | char *ret, *nestret, *ttrans; | |
5221 | int retind, retsize, rflags; | |
5222 | ||
5223 | /* itrace("parse_matched_pair: open = %c close = %c flags = %d", open, close, flags); */ | |
5224 | count = 1; | |
5225 | tflags = 0; | |
5226 | ||
5227 | if ((flags & P_COMMAND) && qc != '`' && qc != '\'' && qc != '"' && (flags & P_DQUOTE) == 0) | |
5228 | tflags |= LEX_CKCOMMENT; | |
5229 | ||
5230 | /* RFLAGS is the set of flags we want to pass to recursive calls. */ | |
5231 | rflags = (qc == '"') ? P_DQUOTE : (flags & P_DQUOTE); | |
5232 | ||
5233 | ret = (char *)xmalloc (retsize = 64); | |
5234 | retind = 0; | |
5235 | ||
5236 | start_lineno = line_number; | |
5237 | while (count) | |
5238 | { | |
5239 | ch = shell_getc (qc != '\'' && (tflags & LEX_PASSNEXT) == 0); | |
5240 | ||
5241 | if (ch == EOF) | |
5242 | { | |
5243 | free (ret); | |
5244 | parser_error (start_lineno, _("unexpected EOF while looking for matching `%c'"), close); | |
5245 | EOF_Reached = 1; /* XXX */ | |
5246 | return (&matched_pair_error); | |
5247 | } | |
5248 | ||
5249 | /* Possible reprompting. */ | |
5250 | if (ch == '\n' && SHOULD_PROMPT ()) | |
5251 | prompt_again (); | |
5252 | ||
5253 | /* Don't bother counting parens or doing anything else if in a comment | |
5254 | or part of a case statement */ | |
5255 | if (tflags & LEX_INCOMMENT) | |
5256 | { | |
5257 | /* Add this character. */ | |
5258 | RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64); | |
5259 | ret[retind++] = ch; | |
5260 | ||
5261 | if (ch == '\n') | |
5262 | tflags &= ~LEX_INCOMMENT; | |
5263 | ||
5264 | continue; | |
5265 | } | |
5266 | ||
5267 | /* Not exactly right yet, should handle shell metacharacters, too. If | |
5268 | any changes are made to this test, make analogous changes to subst.c: | |
5269 | extract_delimited_string(). */ | |
5270 | else if MBTEST((tflags & LEX_CKCOMMENT) && (tflags & LEX_INCOMMENT) == 0 && ch == '#' && (retind == 0 || ret[retind-1] == '\n' || shellblank (ret[retind - 1]))) | |
5271 | tflags |= LEX_INCOMMENT; | |
5272 | ||
5273 | if (tflags & LEX_PASSNEXT) /* last char was backslash */ | |
5274 | { | |
5275 | tflags &= ~LEX_PASSNEXT; | |
5276 | if (qc != '\'' && ch == '\n') /* double-quoted \<newline> disappears. */ | |
5277 | { | |
5278 | if (retind > 0) | |
5279 | retind--; /* swallow previously-added backslash */ | |
5280 | continue; | |
5281 | } | |
5282 | ||
5283 | RESIZE_MALLOCED_BUFFER (ret, retind, 2, retsize, 64); | |
5284 | if MBTEST(ch == CTLESC || ch == CTLNUL) | |
5285 | ret[retind++] = CTLESC; | |
5286 | ret[retind++] = ch; | |
5287 | continue; | |
5288 | } | |
5289 | /* If we're reparsing the input (e.g., from parse_string_to_word_list), | |
5290 | we've already prepended CTLESC to single-quoted results of $'...'. | |
5291 | We may want to do this for other CTLESC-quoted characters in | |
5292 | reparse, too. */ | |
5293 | else if MBTEST((parser_state & PST_REPARSE) && open == '\'' && (ch == CTLESC || ch == CTLNUL)) | |
5294 | { | |
5295 | RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64); | |
5296 | ret[retind++] = ch; | |
5297 | continue; | |
5298 | } | |
5299 | else if MBTEST(ch == CTLESC || ch == CTLNUL) /* special shell escapes */ | |
5300 | { | |
5301 | RESIZE_MALLOCED_BUFFER (ret, retind, 2, retsize, 64); | |
5302 | ret[retind++] = CTLESC; | |
5303 | ret[retind++] = ch; | |
5304 | continue; | |
5305 | } | |
5306 | else if MBTEST(ch == close) /* ending delimiter */ | |
5307 | count--; | |
5308 | /* handle nested ${...} specially. */ | |
5309 | else if MBTEST(open != close && (tflags & LEX_WASDOL) && open == '{' && ch == open) /* } */ | |
5310 | count++; | |
5311 | else if MBTEST(((flags & P_FIRSTCLOSE) == 0) && ch == open) /* nested begin */ | |
5312 | count++; | |
5313 | ||
5314 | /* Add this character. */ | |
5315 | RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64); | |
5316 | ret[retind++] = ch; | |
5317 | ||
5318 | /* If we just read the ending character, don't bother continuing. */ | |
5319 | if (count == 0) | |
5320 | break; | |
5321 | ||
5322 | if (open == '\'') /* '' inside grouping construct */ | |
5323 | { | |
5324 | if MBTEST((flags & P_ALLOWESC) && ch == '\\') | |
5325 | tflags |= LEX_PASSNEXT; | |
5326 | continue; | |
5327 | } | |
5328 | ||
5329 | if MBTEST(ch == '\\') /* backslashes */ | |
5330 | tflags |= LEX_PASSNEXT; | |
5331 | ||
5332 | #if 0 | |
5333 | /* The big hammer. Single quotes aren't special in double quotes. The | |
5334 | problem is that Posix says the single quotes are semi-special: | |
5335 | within a double-quoted ${...} construct "an even number of | |
5336 | unescaped double-quotes or single-quotes, if any, shall occur." */ | |
5337 | if MBTEST(open == '{' && (flags & P_DQUOTE) && ch == '\'') /* } */ | |
5338 | continue; | |
5339 | #endif | |
5340 | ||
5341 | /* Could also check open == '`' if we want to parse grouping constructs | |
5342 | inside old-style command substitution. */ | |
5343 | if (open != close) /* a grouping construct */ | |
5344 | { | |
5345 | if MBTEST(shellquote (ch)) | |
5346 | { | |
5347 | /* '', ``, or "" inside $(...) or other grouping construct. */ | |
5348 | push_delimiter (dstack, ch); | |
5349 | if MBTEST((tflags & LEX_WASDOL) && ch == '\'') /* $'...' inside group */ | |
5350 | nestret = parse_matched_pair (ch, ch, ch, &nestlen, P_ALLOWESC|rflags); | |
5351 | else | |
5352 | nestret = parse_matched_pair (ch, ch, ch, &nestlen, rflags); | |
5353 | pop_delimiter (dstack); | |
5354 | CHECK_NESTRET_ERROR (); | |
5355 | ||
5356 | if MBTEST((tflags & LEX_WASDOL) && ch == '\'' && (extended_quote || (rflags & P_DQUOTE) == 0)) | |
5357 | { | |
5358 | /* Translate $'...' here. */ | |
5359 | ttrans = ansiexpand (nestret, 0, nestlen - 1, &ttranslen); | |
5360 | xfree (nestret); | |
5361 | ||
5362 | if ((rflags & P_DQUOTE) == 0) | |
5363 | { | |
5364 | nestret = sh_single_quote (ttrans); | |
5365 | free (ttrans); | |
5366 | nestlen = strlen (nestret); | |
5367 | } | |
5368 | else | |
5369 | { | |
5370 | nestret = ttrans; | |
5371 | nestlen = ttranslen; | |
5372 | } | |
5373 | retind -= 2; /* back up before the $' */ | |
5374 | } | |
5375 | else if MBTEST((tflags & LEX_WASDOL) && ch == '"' && (extended_quote || (rflags & P_DQUOTE) == 0)) | |
5376 | { | |
5377 | /* Locale expand $"..." here. */ | |
5378 | ttrans = localeexpand (nestret, 0, nestlen - 1, start_lineno, &ttranslen); | |
5379 | xfree (nestret); | |
5380 | ||
5381 | nestret = sh_mkdoublequoted (ttrans, ttranslen, 0); | |
5382 | free (ttrans); | |
5383 | nestlen = ttranslen + 2; | |
5384 | retind -= 2; /* back up before the $" */ | |
5385 | } | |
5386 | ||
5387 | APPEND_NESTRET (); | |
5388 | FREE (nestret); | |
5389 | } | |
5390 | } | |
5391 | /* Parse an old-style command substitution within double quotes as a | |
5392 | single word. */ | |
5393 | /* XXX - sh and ksh93 don't do this - XXX */ | |
5394 | else if MBTEST(open == '"' && ch == '`') | |
5395 | { | |
5396 | nestret = parse_matched_pair (0, '`', '`', &nestlen, rflags); | |
5397 | ||
5398 | CHECK_NESTRET_ERROR (); | |
5399 | APPEND_NESTRET (); | |
5400 | ||
5401 | FREE (nestret); | |
5402 | } | |
5403 | else if MBTEST(open != '`' && (tflags & LEX_WASDOL) && (ch == '(' || ch == '{' || ch == '[')) /* ) } ] */ | |
5404 | /* check for $(), $[], or ${} inside quoted string. */ | |
5405 | { | |
5406 | if (open == ch) /* undo previous increment */ | |
5407 | count--; | |
5408 | if (ch == '(') /* ) */ | |
5409 | nestret = parse_comsub (0, '(', ')', &nestlen, (rflags|P_COMMAND) & ~P_DQUOTE); | |
5410 | else if (ch == '{') /* } */ | |
5411 | nestret = parse_matched_pair (0, '{', '}', &nestlen, P_FIRSTCLOSE|rflags); | |
5412 | else if (ch == '[') /* ] */ | |
5413 | nestret = parse_matched_pair (0, '[', ']', &nestlen, rflags); | |
5414 | ||
5415 | CHECK_NESTRET_ERROR (); | |
5416 | APPEND_NESTRET (); | |
726f6388 | 5417 | |
3185942a JA |
5418 | FREE (nestret); |
5419 | } | |
5420 | if MBTEST(ch == '$') | |
5421 | tflags |= LEX_WASDOL; | |
5422 | else | |
5423 | tflags &= ~LEX_WASDOL; | |
5424 | } | |
726f6388 | 5425 | |
3185942a JA |
5426 | ret[retind] = '\0'; |
5427 | if (lenp) | |
5428 | *lenp = retind; | |
5429 | return ret; | |
5430 | } | |
726f6388 | 5431 | |
3185942a JA |
5432 | /* Parse a $(...) command substitution. This is messier than I'd like, and |
5433 | reproduces a lot more of the token-reading code than I'd like. */ | |
28ef6c31 | 5434 | static char * |
3185942a | 5435 | parse_comsub (qc, open, close, lenp, flags) |
28ef6c31 JA |
5436 | int qc; /* `"' if this construct is within double quotes */ |
5437 | int open, close; | |
5438 | int *lenp, flags; | |
5439 | { | |
3185942a JA |
5440 | int count, ch, peekc, tflags, lex_rwlen, lex_firstind; |
5441 | int nestlen, ttranslen, start_lineno; | |
5442 | char *ret, *nestret, *ttrans, *heredelim; | |
5443 | int retind, retsize, rflags, hdlen; | |
ccc6cda3 | 5444 | |
3185942a | 5445 | /*itrace("parse_comsub: qc = `%c' open = %c close = %c", qc, open, close);*/ |
28ef6c31 | 5446 | count = 1; |
3185942a JA |
5447 | tflags = LEX_RESWDOK; |
5448 | ||
5449 | if ((flags & P_COMMAND) && qc != '\'' && qc != '"' && (flags & P_DQUOTE) == 0) | |
5450 | tflags |= LEX_CKCASE; | |
5451 | if ((tflags & LEX_CKCASE) && (interactive == 0 || interactive_comments)) | |
5452 | tflags |= LEX_CKCOMMENT; | |
d166f048 | 5453 | |
b80f6443 | 5454 | /* RFLAGS is the set of flags we want to pass to recursive calls. */ |
3185942a | 5455 | rflags = (flags & P_DQUOTE); |
b80f6443 | 5456 | |
f73dda09 | 5457 | ret = (char *)xmalloc (retsize = 64); |
28ef6c31 JA |
5458 | retind = 0; |
5459 | ||
5460 | start_lineno = line_number; | |
3185942a JA |
5461 | lex_rwlen = 0; |
5462 | ||
5463 | heredelim = 0; | |
5464 | lex_firstind = -1; | |
5465 | ||
28ef6c31 JA |
5466 | while (count) |
5467 | { | |
3185942a JA |
5468 | comsub_readchar: |
5469 | ch = shell_getc (qc != '\'' && (tflags & LEX_PASSNEXT) == 0); | |
0628567a | 5470 | |
28ef6c31 | 5471 | if (ch == EOF) |
ccc6cda3 | 5472 | { |
3185942a | 5473 | eof_error: |
28ef6c31 | 5474 | free (ret); |
3185942a | 5475 | FREE (heredelim); |
b80f6443 | 5476 | parser_error (start_lineno, _("unexpected EOF while looking for matching `%c'"), close); |
28ef6c31 JA |
5477 | EOF_Reached = 1; /* XXX */ |
5478 | return (&matched_pair_error); | |
ccc6cda3 JA |
5479 | } |
5480 | ||
3185942a JA |
5481 | /* If we hit the end of a line and are reading the contents of a here |
5482 | document, and it's not the same line that the document starts on, | |
5483 | check for this line being the here doc delimiter. Otherwise, if | |
5484 | we're in a here document, mark the next character as the beginning | |
5485 | of a line. */ | |
5486 | if (ch == '\n') | |
5487 | { | |
5488 | if ((tflags & LEX_HEREDELIM) && heredelim) | |
5489 | { | |
5490 | tflags &= ~LEX_HEREDELIM; | |
5491 | tflags |= LEX_INHEREDOC; | |
5492 | lex_firstind = retind + 1; | |
5493 | } | |
5494 | else if (tflags & LEX_INHEREDOC) | |
5495 | { | |
5496 | int tind; | |
5497 | tind = lex_firstind; | |
5498 | while ((tflags & LEX_STRIPDOC) && ret[tind] == '\t') | |
5499 | tind++; | |
5500 | if (STREQN (ret + tind, heredelim, hdlen)) | |
5501 | { | |
5502 | tflags &= ~(LEX_STRIPDOC|LEX_INHEREDOC); | |
5503 | /*itrace("parse_comsub:%d: found here doc end `%s'", line_number, ret + tind);*/ | |
5504 | lex_firstind = -1; | |
5505 | } | |
5506 | else | |
5507 | lex_firstind = retind + 1; | |
5508 | } | |
5509 | } | |
5510 | ||
28ef6c31 | 5511 | /* Possible reprompting. */ |
b80f6443 | 5512 | if (ch == '\n' && SHOULD_PROMPT ()) |
28ef6c31 | 5513 | prompt_again (); |
726f6388 | 5514 | |
3185942a JA |
5515 | /* Don't bother counting parens or doing anything else if in a comment */ |
5516 | if (tflags & (LEX_INCOMMENT|LEX_INHEREDOC)) | |
95732b49 JA |
5517 | { |
5518 | /* Add this character. */ | |
5519 | RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64); | |
5520 | ret[retind++] = ch; | |
5521 | ||
3185942a JA |
5522 | if ((tflags & LEX_INCOMMENT) && ch == '\n') |
5523 | tflags &= ~LEX_INCOMMENT; | |
95732b49 JA |
5524 | |
5525 | continue; | |
5526 | } | |
95732b49 | 5527 | |
3185942a JA |
5528 | /* Skip whitespace */ |
5529 | if MBTEST(shellblank (ch) && lex_rwlen == 0) | |
5530 | { | |
5531 | /* Add this character. */ | |
5532 | RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64); | |
5533 | ret[retind++] = ch; | |
5534 | continue; | |
5535 | } | |
5536 | ||
5537 | /* Either we are looking for the start of the here-doc delimiter | |
5538 | (lex_firstind == -1) or we are reading one (lex_firstind >= 0). | |
5539 | If this character is a shell break character and we are reading | |
5540 | the delimiter, save it and note that we are now reading a here | |
5541 | document. If we've found the start of the delimiter, note it by | |
5542 | setting lex_firstind. Backslashes can quote shell metacharacters | |
5543 | in here-doc delimiters. */ | |
5544 | if (tflags & LEX_HEREDELIM) | |
0628567a | 5545 | { |
3185942a JA |
5546 | if (lex_firstind == -1 && shellbreak (ch) == 0) |
5547 | lex_firstind = retind; | |
5548 | else if (lex_firstind >= 0 && (tflags & LEX_PASSNEXT) == 0 && shellbreak (ch)) | |
5549 | { | |
5550 | nestret = substring (ret, lex_firstind, retind); | |
5551 | heredelim = string_quote_removal (nestret, 0); | |
5552 | free (nestret); | |
5553 | hdlen = STRLEN(heredelim); | |
5554 | /*itrace("parse_comsub:%d: found here doc delimiter `%s' (%d)", line_number, heredelim, hdlen);*/ | |
5555 | if (ch == '\n') | |
5556 | { | |
5557 | tflags |= LEX_INHEREDOC; | |
5558 | tflags &= ~LEX_HEREDELIM; | |
5559 | lex_firstind = retind + 1; | |
5560 | } | |
5561 | else | |
5562 | lex_firstind = -1; | |
5563 | } | |
0628567a JA |
5564 | } |
5565 | ||
3185942a JA |
5566 | /* Meta-characters that can introduce a reserved word. Not perfect yet. */ |
5567 | if MBTEST((tflags & LEX_RESWDOK) == 0 && (tflags & LEX_CKCASE) && (tflags & LEX_INCOMMENT) == 0 && shellmeta(ch)) | |
726f6388 | 5568 | { |
3185942a JA |
5569 | /* Add this character. */ |
5570 | RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64); | |
5571 | ret[retind++] = ch; | |
5572 | peekc = shell_getc (1); | |
5573 | if (ch == peekc && (ch == '&' || ch == '|' || ch == ';')) /* two-character tokens */ | |
5574 | { | |
5575 | RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64); | |
5576 | ret[retind++] = peekc; | |
5577 | /*itrace("parse_comsub:%d: set lex_reswordok = 1, ch = `%c'", line_number, ch); */ | |
5578 | tflags |= LEX_RESWDOK; | |
5579 | lex_rwlen = 0; | |
5580 | continue; | |
5581 | } | |
5582 | else if (ch == '\n' || COMSUB_META(ch)) | |
5583 | { | |
5584 | shell_ungetc (peekc); | |
5585 | tflags |= LEX_RESWDOK; | |
5586 | /*itrace("parse_comsub:%d: set lex_reswordok = 1, ch = `%c'", line_number, ch);*/ | |
5587 | lex_rwlen = 0; | |
5588 | continue; | |
5589 | } | |
5590 | else if (ch == EOF) | |
5591 | goto eof_error; | |
5592 | else | |
5593 | { | |
5594 | /* `unget' the character we just added and fall through */ | |
5595 | retind--; | |
5596 | shell_ungetc (peekc); | |
5597 | } | |
5598 | } | |
5599 | ||
5600 | /* If we can read a reserved word, try to read one. */ | |
5601 | if (tflags & LEX_RESWDOK) | |
5602 | { | |
5603 | if MBTEST(islower (ch)) | |
5604 | { | |
5605 | /* Add this character. */ | |
5606 | RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64); | |
5607 | ret[retind++] = ch; | |
5608 | lex_rwlen++; | |
5609 | continue; | |
5610 | } | |
5611 | else if MBTEST(lex_rwlen == 4 && shellbreak (ch)) | |
5612 | { | |
5613 | if (STREQN (ret + retind - 4, "case", 4)) | |
5614 | { | |
5615 | tflags |= LEX_INCASE; | |
5616 | /*itrace("parse_comsub:%d: found `case', lex_incase -> 1", line_number);*/ | |
5617 | } | |
5618 | else if (STREQN (ret + retind - 4, "esac", 4)) | |
5619 | { | |
5620 | tflags &= ~LEX_INCASE; | |
5621 | /*itrace("parse_comsub:%d: found `esac', lex_incase -> 0", line_number);*/ | |
5622 | } | |
5623 | tflags &= ~LEX_RESWDOK; | |
5624 | } | |
5625 | else if (shellbreak (ch) == 0) | |
5626 | { | |
5627 | tflags &= ~LEX_RESWDOK; | |
5628 | /*itrace("parse_comsub:%d: found `%c', lex_reswordok -> 0", line_number, ch);*/ | |
5629 | } | |
5630 | } | |
5631 | ||
5632 | if MBTEST((tflags & LEX_INCOMMENT) == 0 && (tflags & LEX_CKCASE) && ch == '<') | |
5633 | { | |
5634 | /* Add this character. */ | |
5635 | RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64); | |
5636 | ret[retind++] = ch; | |
5637 | peekc = shell_getc (1); | |
5638 | if (peekc == EOF) | |
5639 | goto eof_error; | |
5640 | if (peekc == ch) | |
5641 | { | |
5642 | RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64); | |
5643 | ret[retind++] = peekc; | |
5644 | peekc = shell_getc (1); | |
5645 | if (peekc == EOF) | |
5646 | goto eof_error; | |
5647 | if (peekc == '-') | |
5648 | { | |
5649 | RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64); | |
5650 | ret[retind++] = peekc; | |
5651 | tflags |= LEX_STRIPDOC; | |
5652 | } | |
5653 | else | |
5654 | shell_ungetc (peekc); | |
5655 | tflags |= LEX_HEREDELIM; | |
5656 | lex_firstind = -1; | |
5657 | continue; | |
5658 | } | |
5659 | else | |
5660 | ch = peekc; /* fall through and continue XXX - this skips comments if peekc == '#' */ | |
5661 | } | |
5662 | /* Not exactly right yet, should handle shell metacharacters, too. If | |
5663 | any changes are made to this test, make analogous changes to subst.c: | |
5664 | extract_delimited_string(). */ | |
5665 | else if MBTEST((tflags & LEX_CKCOMMENT) && (tflags & LEX_INCOMMENT) == 0 && ch == '#' && (retind == 0 || ret[retind-1] == '\n' || shellblank (ret[retind - 1]))) | |
5666 | tflags |= LEX_INCOMMENT; | |
5667 | ||
5668 | if (tflags & LEX_PASSNEXT) /* last char was backslash */ | |
5669 | { | |
5670 | tflags &= ~LEX_PASSNEXT; | |
28ef6c31 JA |
5671 | if (qc != '\'' && ch == '\n') /* double-quoted \<newline> disappears. */ |
5672 | { | |
3185942a JA |
5673 | if (retind > 0) |
5674 | retind--; /* swallow previously-added backslash */ | |
28ef6c31 JA |
5675 | continue; |
5676 | } | |
5677 | ||
5678 | RESIZE_MALLOCED_BUFFER (ret, retind, 2, retsize, 64); | |
7117c2d2 | 5679 | if MBTEST(ch == CTLESC || ch == CTLNUL) |
28ef6c31 JA |
5680 | ret[retind++] = CTLESC; |
5681 | ret[retind++] = ch; | |
5682 | continue; | |
726f6388 | 5683 | } |
7117c2d2 | 5684 | else if MBTEST(ch == CTLESC || ch == CTLNUL) /* special shell escapes */ |
726f6388 | 5685 | { |
28ef6c31 JA |
5686 | RESIZE_MALLOCED_BUFFER (ret, retind, 2, retsize, 64); |
5687 | ret[retind++] = CTLESC; | |
5688 | ret[retind++] = ch; | |
5689 | continue; | |
726f6388 | 5690 | } |
3185942a JA |
5691 | #if 0 |
5692 | else if MBTEST((tflags & LEX_INCASE) && ch == close && close == ')') | |
5693 | tflags &= ~LEX_INCASE; /* XXX */ | |
5694 | #endif | |
5695 | else if MBTEST(ch == close && (tflags & LEX_INCASE) == 0) /* ending delimiter */ | |
5696 | { | |
28ef6c31 | 5697 | count--; |
3185942a JA |
5698 | /*itrace("parse_comsub:%d: found close: count = %d", line_number, count);*/ |
5699 | } | |
5700 | else if MBTEST(((flags & P_FIRSTCLOSE) == 0) && (tflags & LEX_INCASE) == 0 && ch == open) /* nested begin */ | |
28ef6c31 | 5701 | count++; |
726f6388 | 5702 | |
28ef6c31 JA |
5703 | /* Add this character. */ |
5704 | RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64); | |
5705 | ret[retind++] = ch; | |
5706 | ||
3185942a JA |
5707 | /* If we just read the ending character, don't bother continuing. */ |
5708 | if (count == 0) | |
5709 | break; | |
726f6388 | 5710 | |
7117c2d2 | 5711 | if MBTEST(ch == '\\') /* backslashes */ |
3185942a | 5712 | tflags |= LEX_PASSNEXT; |
28ef6c31 | 5713 | |
3185942a JA |
5714 | if MBTEST(shellquote (ch)) |
5715 | { | |
5716 | /* '', ``, or "" inside $(...). */ | |
5717 | push_delimiter (dstack, ch); | |
5718 | if MBTEST((tflags & LEX_WASDOL) && ch == '\'') /* $'...' inside group */ | |
5719 | nestret = parse_matched_pair (ch, ch, ch, &nestlen, P_ALLOWESC|rflags); | |
5720 | else | |
5721 | nestret = parse_matched_pair (ch, ch, ch, &nestlen, rflags); | |
5722 | pop_delimiter (dstack); | |
5723 | CHECK_NESTRET_ERROR (); | |
5724 | ||
5725 | if MBTEST((tflags & LEX_WASDOL) && ch == '\'' && (extended_quote || (rflags & P_DQUOTE) == 0)) | |
28ef6c31 | 5726 | { |
3185942a JA |
5727 | /* Translate $'...' here. */ |
5728 | ttrans = ansiexpand (nestret, 0, nestlen - 1, &ttranslen); | |
5729 | xfree (nestret); | |
95732b49 | 5730 | |
3185942a | 5731 | if ((rflags & P_DQUOTE) == 0) |
28ef6c31 | 5732 | { |
3185942a | 5733 | nestret = sh_single_quote (ttrans); |
28ef6c31 | 5734 | free (ttrans); |
3185942a | 5735 | nestlen = strlen (nestret); |
28ef6c31 | 5736 | } |
3185942a | 5737 | else |
28ef6c31 | 5738 | { |
3185942a JA |
5739 | nestret = ttrans; |
5740 | nestlen = ttranslen; | |
28ef6c31 | 5741 | } |
3185942a | 5742 | retind -= 2; /* back up before the $' */ |
28ef6c31 | 5743 | } |
3185942a | 5744 | else if MBTEST((tflags & LEX_WASDOL) && ch == '"' && (extended_quote || (rflags & P_DQUOTE) == 0)) |
28ef6c31 | 5745 | { |
3185942a JA |
5746 | /* Locale expand $"..." here. */ |
5747 | ttrans = localeexpand (nestret, 0, nestlen - 1, start_lineno, &ttranslen); | |
5748 | xfree (nestret); | |
5749 | ||
5750 | nestret = sh_mkdoublequoted (ttrans, ttranslen, 0); | |
5751 | free (ttrans); | |
5752 | nestlen = ttranslen + 2; | |
5753 | retind -= 2; /* back up before the $" */ | |
28ef6c31 | 5754 | } |
3185942a JA |
5755 | |
5756 | APPEND_NESTRET (); | |
28ef6c31 JA |
5757 | FREE (nestret); |
5758 | } | |
3185942a JA |
5759 | else if MBTEST((tflags & LEX_WASDOL) && (ch == '(' || ch == '{' || ch == '[')) /* ) } ] */ |
5760 | /* check for $(), $[], or ${} inside command substitution. */ | |
28ef6c31 | 5761 | { |
3185942a | 5762 | if ((tflags & LEX_INCASE) == 0 && open == ch) /* undo previous increment */ |
28ef6c31 JA |
5763 | count--; |
5764 | if (ch == '(') /* ) */ | |
3185942a | 5765 | nestret = parse_comsub (0, '(', ')', &nestlen, (rflags|P_COMMAND) & ~P_DQUOTE); |
28ef6c31 | 5766 | else if (ch == '{') /* } */ |
b80f6443 | 5767 | nestret = parse_matched_pair (0, '{', '}', &nestlen, P_FIRSTCLOSE|rflags); |
28ef6c31 | 5768 | else if (ch == '[') /* ] */ |
b80f6443 | 5769 | nestret = parse_matched_pair (0, '[', ']', &nestlen, rflags); |
95732b49 | 5770 | |
3185942a JA |
5771 | CHECK_NESTRET_ERROR (); |
5772 | APPEND_NESTRET (); | |
5773 | ||
5774 | FREE (nestret); | |
726f6388 | 5775 | } |
3185942a JA |
5776 | if MBTEST(ch == '$') |
5777 | tflags |= LEX_WASDOL; | |
5778 | else | |
5779 | tflags &= ~LEX_WASDOL; | |
726f6388 | 5780 | } |
ccc6cda3 | 5781 | |
3185942a | 5782 | FREE (heredelim); |
28ef6c31 JA |
5783 | ret[retind] = '\0'; |
5784 | if (lenp) | |
5785 | *lenp = retind; | |
3185942a JA |
5786 | /*itrace("parse_comsub:%d: returning `%s'", line_number, ret);*/ |
5787 | return ret; | |
5788 | } | |
5789 | ||
5790 | /* XXX - this needs to handle functionality like subst.c:no_longjmp_on_fatal_error; | |
5791 | maybe extract_command_subst should handle it. */ | |
5792 | char * | |
5793 | xparse_dolparen (base, string, indp, flags) | |
5794 | char *base; | |
5795 | char *string; | |
5796 | int *indp; | |
5797 | int flags; | |
5798 | { | |
5799 | sh_parser_state_t ps; | |
5800 | int orig_ind, nc, sflags; | |
5801 | char *ret, *s, *ep, *ostring; | |
5802 | ||
5803 | /*yydebug = 1;*/ | |
5804 | orig_ind = *indp; | |
5805 | ostring = string; | |
5806 | ||
5807 | sflags = SEVAL_NONINT|SEVAL_NOHIST|SEVAL_NOFREE; | |
5808 | if (flags & SX_NOLONGJMP) | |
5809 | sflags |= SEVAL_NOLONGJMP; | |
5810 | save_parser_state (&ps); | |
5811 | ||
5812 | /*(*/ | |
5813 | parser_state |= PST_CMDSUBST|PST_EOFTOKEN; /* allow instant ')' */ /*(*/ | |
5814 | shell_eof_token = ')'; | |
5815 | parse_string (string, "command substitution", sflags, &ep); | |
5816 | ||
5817 | restore_parser_state (&ps); | |
5818 | reset_parser (); | |
5819 | if (interactive) | |
5820 | token_to_read = 0; | |
5821 | ||
5822 | /* Need to find how many characters parse_and_execute consumed, update | |
5823 | *indp, if flags != 0, copy the portion of the string parsed into RET | |
5824 | and return it. If flags & 1 (EX_NOALLOC) we can return NULL. */ | |
5825 | ||
5826 | /*(*/ | |
5827 | if (ep[-1] != ')') | |
5828 | { | |
5829 | #if DEBUG | |
5830 | if (ep[-1] != '\n') | |
5831 | itrace("xparse_dolparen:%d: ep[-1] != RPAREN (%d), ep = `%s'", line_number, ep[-1], ep); | |
5832 | #endif | |
5833 | while (ep > ostring && ep[-1] == '\n') ep--; | |
5834 | } | |
5835 | ||
5836 | nc = ep - ostring; | |
5837 | *indp = ep - base - 1; | |
5838 | ||
5839 | /*(*/ | |
5840 | #if DEBUG | |
5841 | if (base[*indp] != ')') | |
5842 | itrace("xparse_dolparen:%d: base[%d] != RPAREN (%d), base = `%s'", line_number, *indp, base[*indp], base); | |
5843 | #endif | |
5844 | ||
5845 | if (flags & SX_NOALLOC) | |
5846 | return (char *)NULL; | |
5847 | ||
5848 | if (nc == 0) | |
5849 | { | |
5850 | ret = xmalloc (1); | |
5851 | ret[0] = '\0'; | |
5852 | } | |
5853 | else | |
5854 | ret = substring (ostring, 0, nc - 1); | |
5855 | ||
28ef6c31 JA |
5856 | return ret; |
5857 | } | |
726f6388 | 5858 | |
28ef6c31 | 5859 | #if defined (DPAREN_ARITHMETIC) || defined (ARITH_FOR_COMMAND) |
7117c2d2 JA |
5860 | /* Parse a double-paren construct. It can be either an arithmetic |
5861 | command, an arithmetic `for' command, or a nested subshell. Returns | |
5862 | the parsed token, -1 on error, or -2 if we didn't do anything and | |
5863 | should just go on. */ | |
5864 | static int | |
5865 | parse_dparen (c) | |
5866 | int c; | |
5867 | { | |
0628567a JA |
5868 | int cmdtyp, sline; |
5869 | char *wval; | |
7117c2d2 JA |
5870 | WORD_DESC *wd; |
5871 | ||
5872 | #if defined (ARITH_FOR_COMMAND) | |
5873 | if (last_read_token == FOR) | |
5874 | { | |
5875 | arith_for_lineno = line_number; | |
b80f6443 | 5876 | cmdtyp = parse_arith_cmd (&wval, 0); |
7117c2d2 JA |
5877 | if (cmdtyp == 1) |
5878 | { | |
95732b49 JA |
5879 | wd = alloc_word_desc (); |
5880 | wd->word = wval; | |
7117c2d2 | 5881 | yylval.word_list = make_word_list (wd, (WORD_LIST *)NULL); |
7117c2d2 JA |
5882 | return (ARITH_FOR_EXPRS); |
5883 | } | |
5884 | else | |
5885 | return -1; /* ERROR */ | |
5886 | } | |
5887 | #endif | |
5888 | ||
5889 | #if defined (DPAREN_ARITHMETIC) | |
5890 | if (reserved_word_acceptable (last_read_token)) | |
5891 | { | |
5892 | sline = line_number; | |
95732b49 | 5893 | |
b80f6443 | 5894 | cmdtyp = parse_arith_cmd (&wval, 0); |
7117c2d2 JA |
5895 | if (cmdtyp == 1) /* arithmetic command */ |
5896 | { | |
95732b49 JA |
5897 | wd = alloc_word_desc (); |
5898 | wd->word = wval; | |
5899 | wd->flags = W_QUOTED|W_NOSPLIT|W_NOGLOB|W_DQUOTE; | |
7117c2d2 | 5900 | yylval.word_list = make_word_list (wd, (WORD_LIST *)NULL); |
7117c2d2 JA |
5901 | return (ARITH_CMD); |
5902 | } | |
5903 | else if (cmdtyp == 0) /* nested subshell */ | |
5904 | { | |
5905 | push_string (wval, 0, (alias_t *)NULL); | |
5906 | if ((parser_state & PST_CASEPAT) == 0) | |
5907 | parser_state |= PST_SUBSHELL; | |
5908 | return (c); | |
5909 | } | |
5910 | else /* ERROR */ | |
5911 | return -1; | |
5912 | } | |
5913 | #endif | |
5914 | ||
5915 | return -2; /* XXX */ | |
5916 | } | |
5917 | ||
28ef6c31 JA |
5918 | /* We've seen a `(('. Look for the matching `))'. If we get it, return 1. |
5919 | If not, assume it's a nested subshell for backwards compatibility and | |
5920 | return 0. In any case, put the characters we've consumed into a locally- | |
5921 | allocated buffer and make *ep point to that buffer. Return -1 on an | |
5922 | error, for example EOF. */ | |
5923 | static int | |
b80f6443 | 5924 | parse_arith_cmd (ep, adddq) |
28ef6c31 | 5925 | char **ep; |
b80f6443 | 5926 | int adddq; |
28ef6c31 JA |
5927 | { |
5928 | int exp_lineno, rval, c; | |
f73dda09 | 5929 | char *ttok, *tokstr; |
28ef6c31 | 5930 | int ttoklen; |
726f6388 | 5931 | |
28ef6c31 JA |
5932 | exp_lineno = line_number; |
5933 | ttok = parse_matched_pair (0, '(', ')', &ttoklen, 0); | |
5934 | rval = 1; | |
5935 | if (ttok == &matched_pair_error) | |
5936 | return -1; | |
5937 | /* Check that the next character is the closing right paren. If | |
5938 | not, this is a syntax error. ( */ | |
7117c2d2 JA |
5939 | c = shell_getc (0); |
5940 | if MBTEST(c != ')') | |
28ef6c31 JA |
5941 | rval = 0; |
5942 | ||
f73dda09 | 5943 | tokstr = (char *)xmalloc (ttoklen + 4); |
28ef6c31 | 5944 | |
b80f6443 JA |
5945 | /* if ADDDQ != 0 then (( ... )) -> "..." */ |
5946 | if (rval == 1 && adddq) /* arith cmd, add double quotes */ | |
726f6388 | 5947 | { |
b80f6443 JA |
5948 | tokstr[0] = '"'; |
5949 | strncpy (tokstr + 1, ttok, ttoklen - 1); | |
f73dda09 JA |
5950 | tokstr[ttoklen] = '"'; |
5951 | tokstr[ttoklen+1] = '\0'; | |
726f6388 | 5952 | } |
b80f6443 JA |
5953 | else if (rval == 1) /* arith cmd, don't add double quotes */ |
5954 | { | |
5955 | strncpy (tokstr, ttok, ttoklen - 1); | |
5956 | tokstr[ttoklen-1] = '\0'; | |
5957 | } | |
5958 | else /* nested subshell */ | |
726f6388 | 5959 | { |
b80f6443 JA |
5960 | tokstr[0] = '('; |
5961 | strncpy (tokstr + 1, ttok, ttoklen - 1); | |
f73dda09 JA |
5962 | tokstr[ttoklen] = ')'; |
5963 | tokstr[ttoklen+1] = c; | |
5964 | tokstr[ttoklen+2] = '\0'; | |
726f6388 | 5965 | } |
b80f6443 | 5966 | |
f73dda09 | 5967 | *ep = tokstr; |
28ef6c31 JA |
5968 | FREE (ttok); |
5969 | return rval; | |
726f6388 | 5970 | } |
28ef6c31 | 5971 | #endif /* DPAREN_ARITHMETIC || ARITH_FOR_COMMAND */ |
726f6388 | 5972 | |
28ef6c31 | 5973 | #if defined (COND_COMMAND) |
7117c2d2 JA |
5974 | static void |
5975 | cond_error () | |
5976 | { | |
5977 | char *etext; | |
5978 | ||
5979 | if (EOF_Reached && cond_token != COND_ERROR) /* [[ */ | |
b80f6443 | 5980 | parser_error (cond_lineno, _("unexpected EOF while looking for `]]'")); |
7117c2d2 JA |
5981 | else if (cond_token != COND_ERROR) |
5982 | { | |
5983 | if (etext = error_token_from_token (cond_token)) | |
5984 | { | |
b80f6443 | 5985 | parser_error (cond_lineno, _("syntax error in conditional expression: unexpected token `%s'"), etext); |
7117c2d2 JA |
5986 | free (etext); |
5987 | } | |
5988 | else | |
b80f6443 | 5989 | parser_error (cond_lineno, _("syntax error in conditional expression")); |
7117c2d2 JA |
5990 | } |
5991 | } | |
5992 | ||
28ef6c31 JA |
5993 | static COND_COM * |
5994 | cond_expr () | |
ccc6cda3 | 5995 | { |
28ef6c31 | 5996 | return (cond_or ()); |
ccc6cda3 JA |
5997 | } |
5998 | ||
28ef6c31 JA |
5999 | static COND_COM * |
6000 | cond_or () | |
726f6388 | 6001 | { |
28ef6c31 | 6002 | COND_COM *l, *r; |
726f6388 | 6003 | |
28ef6c31 JA |
6004 | l = cond_and (); |
6005 | if (cond_token == OR_OR) | |
6006 | { | |
6007 | r = cond_or (); | |
6008 | l = make_cond_node (COND_OR, (WORD_DESC *)NULL, l, r); | |
6009 | } | |
6010 | return l; | |
726f6388 | 6011 | } |
726f6388 | 6012 | |
28ef6c31 JA |
6013 | static COND_COM * |
6014 | cond_and () | |
726f6388 | 6015 | { |
28ef6c31 | 6016 | COND_COM *l, *r; |
726f6388 | 6017 | |
28ef6c31 JA |
6018 | l = cond_term (); |
6019 | if (cond_token == AND_AND) | |
6020 | { | |
6021 | r = cond_and (); | |
6022 | l = make_cond_node (COND_AND, (WORD_DESC *)NULL, l, r); | |
6023 | } | |
6024 | return l; | |
726f6388 JA |
6025 | } |
6026 | ||
ccc6cda3 | 6027 | static int |
28ef6c31 | 6028 | cond_skip_newlines () |
726f6388 | 6029 | { |
28ef6c31 | 6030 | while ((cond_token = read_token (READ)) == '\n') |
726f6388 | 6031 | { |
b80f6443 | 6032 | if (SHOULD_PROMPT ()) |
726f6388 JA |
6033 | prompt_again (); |
6034 | } | |
28ef6c31 | 6035 | return (cond_token); |
726f6388 JA |
6036 | } |
6037 | ||
28ef6c31 JA |
6038 | #define COND_RETURN_ERROR() \ |
6039 | do { cond_token = COND_ERROR; return ((COND_COM *)NULL); } while (0) | |
726f6388 | 6040 | |
28ef6c31 JA |
6041 | static COND_COM * |
6042 | cond_term () | |
726f6388 | 6043 | { |
28ef6c31 JA |
6044 | WORD_DESC *op; |
6045 | COND_COM *term, *tleft, *tright; | |
6046 | int tok, lineno; | |
7117c2d2 | 6047 | char *etext; |
28ef6c31 JA |
6048 | |
6049 | /* Read a token. It can be a left paren, a `!', a unary operator, or a | |
6050 | word that should be the first argument of a binary operator. Start by | |
6051 | skipping newlines, since this is a compound command. */ | |
6052 | tok = cond_skip_newlines (); | |
6053 | lineno = line_number; | |
6054 | if (tok == COND_END) | |
726f6388 | 6055 | { |
28ef6c31 | 6056 | COND_RETURN_ERROR (); |
726f6388 | 6057 | } |
28ef6c31 JA |
6058 | else if (tok == '(') |
6059 | { | |
6060 | term = cond_expr (); | |
6061 | if (cond_token != ')') | |
6062 | { | |
6063 | if (term) | |
6064 | dispose_cond_node (term); /* ( */ | |
7117c2d2 JA |
6065 | if (etext = error_token_from_token (cond_token)) |
6066 | { | |
b80f6443 | 6067 | parser_error (lineno, _("unexpected token `%s', expected `)'"), etext); |
7117c2d2 JA |
6068 | free (etext); |
6069 | } | |
6070 | else | |
b80f6443 | 6071 | parser_error (lineno, _("expected `)'")); |
28ef6c31 JA |
6072 | COND_RETURN_ERROR (); |
6073 | } | |
6074 | term = make_cond_node (COND_EXPR, (WORD_DESC *)NULL, term, (COND_COM *)NULL); | |
6075 | (void)cond_skip_newlines (); | |
6076 | } | |
6077 | else if (tok == BANG || (tok == WORD && (yylval.word->word[0] == '!' && yylval.word->word[1] == '\0'))) | |
6078 | { | |
6079 | if (tok == WORD) | |
6080 | dispose_word (yylval.word); /* not needed */ | |
6081 | term = cond_term (); | |
6082 | if (term) | |
6083 | term->flags |= CMD_INVERT_RETURN; | |
6084 | } | |
3185942a | 6085 | else if (tok == WORD && yylval.word->word[0] == '-' && yylval.word->word[2] == 0 && test_unop (yylval.word->word)) |
28ef6c31 JA |
6086 | { |
6087 | op = yylval.word; | |
6088 | tok = read_token (READ); | |
6089 | if (tok == WORD) | |
6090 | { | |
6091 | tleft = make_cond_node (COND_TERM, yylval.word, (COND_COM *)NULL, (COND_COM *)NULL); | |
6092 | term = make_cond_node (COND_UNARY, op, tleft, (COND_COM *)NULL); | |
6093 | } | |
6094 | else | |
6095 | { | |
6096 | dispose_word (op); | |
7117c2d2 JA |
6097 | if (etext = error_token_from_token (tok)) |
6098 | { | |
b80f6443 | 6099 | parser_error (line_number, _("unexpected argument `%s' to conditional unary operator"), etext); |
7117c2d2 JA |
6100 | free (etext); |
6101 | } | |
6102 | else | |
b80f6443 | 6103 | parser_error (line_number, _("unexpected argument to conditional unary operator")); |
28ef6c31 JA |
6104 | COND_RETURN_ERROR (); |
6105 | } | |
726f6388 | 6106 | |
28ef6c31 JA |
6107 | (void)cond_skip_newlines (); |
6108 | } | |
6109 | else if (tok == WORD) /* left argument to binary operator */ | |
6110 | { | |
6111 | /* lhs */ | |
6112 | tleft = make_cond_node (COND_TERM, yylval.word, (COND_COM *)NULL, (COND_COM *)NULL); | |
726f6388 | 6113 | |
28ef6c31 JA |
6114 | /* binop */ |
6115 | tok = read_token (READ); | |
6116 | if (tok == WORD && test_binop (yylval.word->word)) | |
6117 | op = yylval.word; | |
b80f6443 | 6118 | #if defined (COND_REGEXP) |
3185942a JA |
6119 | else if (tok == WORD && STREQ (yylval.word->word, "=~")) |
6120 | { | |
6121 | op = yylval.word; | |
6122 | parser_state |= PST_REGEXP; | |
6123 | } | |
b80f6443 | 6124 | #endif |
28ef6c31 JA |
6125 | else if (tok == '<' || tok == '>') |
6126 | op = make_word_from_token (tok); /* ( */ | |
6127 | /* There should be a check before blindly accepting the `)' that we have | |
6128 | seen the opening `('. */ | |
6129 | else if (tok == COND_END || tok == AND_AND || tok == OR_OR || tok == ')') | |
6130 | { | |
6131 | /* Special case. [[ x ]] is equivalent to [[ -n x ]], just like | |
6132 | the test command. Similarly for [[ x && expr ]] or | |
6133 | [[ x || expr ]] or [[ (x) ]]. */ | |
6134 | op = make_word ("-n"); | |
6135 | term = make_cond_node (COND_UNARY, op, tleft, (COND_COM *)NULL); | |
6136 | cond_token = tok; | |
6137 | return (term); | |
6138 | } | |
6139 | else | |
6140 | { | |
7117c2d2 JA |
6141 | if (etext = error_token_from_token (tok)) |
6142 | { | |
b80f6443 | 6143 | parser_error (line_number, _("unexpected token `%s', conditional binary operator expected"), etext); |
7117c2d2 JA |
6144 | free (etext); |
6145 | } | |
6146 | else | |
b80f6443 | 6147 | parser_error (line_number, _("conditional binary operator expected")); |
28ef6c31 JA |
6148 | dispose_cond_node (tleft); |
6149 | COND_RETURN_ERROR (); | |
6150 | } | |
726f6388 | 6151 | |
28ef6c31 JA |
6152 | /* rhs */ |
6153 | tok = read_token (READ); | |
3185942a | 6154 | parser_state &= ~PST_REGEXP; |
28ef6c31 JA |
6155 | if (tok == WORD) |
6156 | { | |
6157 | tright = make_cond_node (COND_TERM, yylval.word, (COND_COM *)NULL, (COND_COM *)NULL); | |
6158 | term = make_cond_node (COND_BINARY, op, tleft, tright); | |
6159 | } | |
6160 | else | |
6161 | { | |
7117c2d2 JA |
6162 | if (etext = error_token_from_token (tok)) |
6163 | { | |
b80f6443 | 6164 | parser_error (line_number, _("unexpected argument `%s' to conditional binary operator"), etext); |
7117c2d2 JA |
6165 | free (etext); |
6166 | } | |
6167 | else | |
b80f6443 | 6168 | parser_error (line_number, _("unexpected argument to conditional binary operator")); |
28ef6c31 JA |
6169 | dispose_cond_node (tleft); |
6170 | dispose_word (op); | |
6171 | COND_RETURN_ERROR (); | |
6172 | } | |
726f6388 | 6173 | |
28ef6c31 JA |
6174 | (void)cond_skip_newlines (); |
6175 | } | |
6176 | else | |
6177 | { | |
6178 | if (tok < 256) | |
b80f6443 | 6179 | parser_error (line_number, _("unexpected token `%c' in conditional command"), tok); |
7117c2d2 JA |
6180 | else if (etext = error_token_from_token (tok)) |
6181 | { | |
b80f6443 | 6182 | parser_error (line_number, _("unexpected token `%s' in conditional command"), etext); |
7117c2d2 JA |
6183 | free (etext); |
6184 | } | |
28ef6c31 | 6185 | else |
b80f6443 | 6186 | parser_error (line_number, _("unexpected token %d in conditional command"), tok); |
28ef6c31 JA |
6187 | COND_RETURN_ERROR (); |
6188 | } | |
6189 | return (term); | |
6190 | } | |
ccc6cda3 | 6191 | |
28ef6c31 JA |
6192 | /* This is kind of bogus -- we slip a mini recursive-descent parser in |
6193 | here to handle the conditional statement syntax. */ | |
6194 | static COMMAND * | |
6195 | parse_cond_command () | |
6196 | { | |
6197 | COND_COM *cexp; | |
ccc6cda3 | 6198 | |
28ef6c31 JA |
6199 | cexp = cond_expr (); |
6200 | return (make_cond_command (cexp)); | |
6201 | } | |
6202 | #endif | |
ccc6cda3 | 6203 | |
7117c2d2 JA |
6204 | #if defined (ARRAY_VARS) |
6205 | /* When this is called, it's guaranteed that we don't care about anything | |
6206 | in t beyond i. We do save and restore the chars, though. */ | |
6207 | static int | |
6208 | token_is_assignment (t, i) | |
6209 | char *t; | |
6210 | int i; | |
6211 | { | |
6212 | unsigned char c, c1; | |
6213 | int r; | |
6214 | ||
6215 | c = t[i]; c1 = t[i+1]; | |
6216 | t[i] = '='; t[i+1] = '\0'; | |
b80f6443 | 6217 | r = assignment (t, (parser_state & PST_COMPASSIGN) != 0); |
7117c2d2 JA |
6218 | t[i] = c; t[i+1] = c1; |
6219 | return r; | |
6220 | } | |
6221 | ||
95732b49 | 6222 | /* XXX - possible changes here for `+=' */ |
7117c2d2 JA |
6223 | static int |
6224 | token_is_ident (t, i) | |
6225 | char *t; | |
6226 | int i; | |
6227 | { | |
6228 | unsigned char c; | |
6229 | int r; | |
6230 | ||
6231 | c = t[i]; | |
6232 | t[i] = '\0'; | |
6233 | r = legal_identifier (t); | |
6234 | t[i] = c; | |
6235 | return r; | |
6236 | } | |
6237 | #endif | |
6238 | ||
726f6388 | 6239 | static int |
28ef6c31 JA |
6240 | read_token_word (character) |
6241 | int character; | |
726f6388 | 6242 | { |
28ef6c31 JA |
6243 | /* The value for YYLVAL when a WORD is read. */ |
6244 | WORD_DESC *the_word; | |
726f6388 | 6245 | |
28ef6c31 JA |
6246 | /* Index into the token that we are building. */ |
6247 | int token_index; | |
ccc6cda3 | 6248 | |
28ef6c31 | 6249 | /* ALL_DIGITS becomes zero when we see a non-digit. */ |
f73dda09 | 6250 | int all_digit_token; |
ccc6cda3 | 6251 | |
28ef6c31 JA |
6252 | /* DOLLAR_PRESENT becomes non-zero if we see a `$'. */ |
6253 | int dollar_present; | |
cce855bc | 6254 | |
95732b49 JA |
6255 | /* COMPOUND_ASSIGNMENT becomes non-zero if we are parsing a compound |
6256 | assignment. */ | |
6257 | int compound_assignment; | |
6258 | ||
28ef6c31 JA |
6259 | /* QUOTED becomes non-zero if we see one of ("), ('), (`), or (\). */ |
6260 | int quoted; | |
cce855bc | 6261 | |
28ef6c31 JA |
6262 | /* Non-zero means to ignore the value of the next character, and just |
6263 | to add it no matter what. */ | |
6264 | int pass_next_character; | |
cce855bc | 6265 | |
28ef6c31 JA |
6266 | /* The current delimiting character. */ |
6267 | int cd; | |
6268 | int result, peek_char; | |
6269 | char *ttok, *ttrans; | |
6270 | int ttoklen, ttranslen; | |
7117c2d2 | 6271 | intmax_t lvalue; |
ccc6cda3 | 6272 | |
28ef6c31 | 6273 | if (token_buffer_size < TOKEN_DEFAULT_INITIAL_SIZE) |
f73dda09 | 6274 | token = (char *)xrealloc (token, token_buffer_size = TOKEN_DEFAULT_INITIAL_SIZE); |
726f6388 | 6275 | |
28ef6c31 | 6276 | token_index = 0; |
f73dda09 | 6277 | all_digit_token = DIGIT (character); |
95732b49 | 6278 | dollar_present = quoted = pass_next_character = compound_assignment = 0; |
ccc6cda3 | 6279 | |
28ef6c31 | 6280 | for (;;) |
ccc6cda3 | 6281 | { |
28ef6c31 JA |
6282 | if (character == EOF) |
6283 | goto got_token; | |
726f6388 | 6284 | |
28ef6c31 | 6285 | if (pass_next_character) |
726f6388 | 6286 | { |
28ef6c31 | 6287 | pass_next_character = 0; |
3185942a | 6288 | goto got_escaped_character; |
726f6388 | 6289 | } |
726f6388 | 6290 | |
28ef6c31 | 6291 | cd = current_delimiter (dstack); |
ccc6cda3 | 6292 | |
28ef6c31 JA |
6293 | /* Handle backslashes. Quote lots of things when not inside of |
6294 | double-quotes, quote some things inside of double-quotes. */ | |
7117c2d2 | 6295 | if MBTEST(character == '\\') |
28ef6c31 JA |
6296 | { |
6297 | peek_char = shell_getc (0); | |
ccc6cda3 | 6298 | |
28ef6c31 JA |
6299 | /* Backslash-newline is ignored in all cases except |
6300 | when quoted with single quotes. */ | |
6301 | if (peek_char == '\n') | |
6302 | { | |
6303 | character = '\n'; | |
6304 | goto next_character; | |
6305 | } | |
6306 | else | |
6307 | { | |
6308 | shell_ungetc (peek_char); | |
ccc6cda3 | 6309 | |
28ef6c31 JA |
6310 | /* If the next character is to be quoted, note it now. */ |
6311 | if (cd == 0 || cd == '`' || | |
f73dda09 | 6312 | (cd == '"' && peek_char >= 0 && (sh_syntaxtab[peek_char] & CBSDQUOTE))) |
28ef6c31 | 6313 | pass_next_character++; |
ccc6cda3 | 6314 | |
28ef6c31 JA |
6315 | quoted = 1; |
6316 | goto got_character; | |
6317 | } | |
6318 | } | |
726f6388 | 6319 | |
28ef6c31 | 6320 | /* Parse a matched pair of quote characters. */ |
7117c2d2 | 6321 | if MBTEST(shellquote (character)) |
d166f048 | 6322 | { |
28ef6c31 | 6323 | push_delimiter (dstack, character); |
95732b49 | 6324 | ttok = parse_matched_pair (character, character, character, &ttoklen, (character == '`') ? P_COMMAND : 0); |
28ef6c31 JA |
6325 | pop_delimiter (dstack); |
6326 | if (ttok == &matched_pair_error) | |
6327 | return -1; /* Bail immediately. */ | |
6328 | RESIZE_MALLOCED_BUFFER (token, token_index, ttoklen + 2, | |
6329 | token_buffer_size, TOKEN_DEFAULT_GROW_SIZE); | |
6330 | token[token_index++] = character; | |
6331 | strcpy (token + token_index, ttok); | |
6332 | token_index += ttoklen; | |
f73dda09 | 6333 | all_digit_token = 0; |
28ef6c31 JA |
6334 | quoted = 1; |
6335 | dollar_present |= (character == '"' && strchr (ttok, '$') != 0); | |
6336 | FREE (ttok); | |
6337 | goto next_character; | |
d166f048 | 6338 | } |
726f6388 | 6339 | |
3185942a JA |
6340 | #ifdef COND_REGEXP |
6341 | /* When parsing a regexp as a single word inside a conditional command, | |
6342 | we need to special-case characters special to both the shell and | |
6343 | regular expressions. Right now, that is only '(' and '|'. */ /*)*/ | |
6344 | if MBTEST((parser_state & PST_REGEXP) && (character == '(' || character == '|')) /*)*/ | |
6345 | { | |
6346 | if (character == '|') | |
6347 | goto got_character; | |
6348 | ||
6349 | push_delimiter (dstack, character); | |
6350 | ttok = parse_matched_pair (cd, '(', ')', &ttoklen, 0); | |
6351 | pop_delimiter (dstack); | |
6352 | if (ttok == &matched_pair_error) | |
6353 | return -1; /* Bail immediately. */ | |
6354 | RESIZE_MALLOCED_BUFFER (token, token_index, ttoklen + 2, | |
6355 | token_buffer_size, TOKEN_DEFAULT_GROW_SIZE); | |
6356 | token[token_index++] = character; | |
6357 | strcpy (token + token_index, ttok); | |
6358 | token_index += ttoklen; | |
6359 | FREE (ttok); | |
6360 | dollar_present = all_digit_token = 0; | |
6361 | goto next_character; | |
6362 | } | |
6363 | #endif /* COND_REGEXP */ | |
6364 | ||
28ef6c31 JA |
6365 | #ifdef EXTENDED_GLOB |
6366 | /* Parse a ksh-style extended pattern matching specification. */ | |
3185942a | 6367 | if MBTEST(extended_glob && PATTERN_CHAR (character)) |
cce855bc | 6368 | { |
28ef6c31 | 6369 | peek_char = shell_getc (1); |
7117c2d2 | 6370 | if MBTEST(peek_char == '(') /* ) */ |
28ef6c31 JA |
6371 | { |
6372 | push_delimiter (dstack, peek_char); | |
6373 | ttok = parse_matched_pair (cd, '(', ')', &ttoklen, 0); | |
6374 | pop_delimiter (dstack); | |
6375 | if (ttok == &matched_pair_error) | |
6376 | return -1; /* Bail immediately. */ | |
6377 | RESIZE_MALLOCED_BUFFER (token, token_index, ttoklen + 2, | |
6378 | token_buffer_size, | |
6379 | TOKEN_DEFAULT_GROW_SIZE); | |
6380 | token[token_index++] = character; | |
6381 | token[token_index++] = peek_char; | |
6382 | strcpy (token + token_index, ttok); | |
6383 | token_index += ttoklen; | |
6384 | FREE (ttok); | |
f73dda09 | 6385 | dollar_present = all_digit_token = 0; |
28ef6c31 JA |
6386 | goto next_character; |
6387 | } | |
6388 | else | |
6389 | shell_ungetc (peek_char); | |
6390 | } | |
6391 | #endif /* EXTENDED_GLOB */ | |
726f6388 | 6392 | |
28ef6c31 JA |
6393 | /* If the delimiter character is not single quote, parse some of |
6394 | the shell expansions that must be read as a single word. */ | |
6395 | if (shellexp (character)) | |
6396 | { | |
6397 | peek_char = shell_getc (1); | |
6398 | /* $(...), <(...), >(...), $((...)), ${...}, and $[...] constructs */ | |
7117c2d2 | 6399 | if MBTEST(peek_char == '(' || \ |
28ef6c31 JA |
6400 | ((peek_char == '{' || peek_char == '[') && character == '$')) /* ) ] } */ |
6401 | { | |
6402 | if (peek_char == '{') /* } */ | |
6403 | ttok = parse_matched_pair (cd, '{', '}', &ttoklen, P_FIRSTCLOSE); | |
6404 | else if (peek_char == '(') /* ) */ | |
6405 | { | |
6406 | /* XXX - push and pop the `(' as a delimiter for use by | |
6407 | the command-oriented-history code. This way newlines | |
6408 | appearing in the $(...) string get added to the | |
6409 | history literally rather than causing a possibly- | |
6410 | incorrect `;' to be added. ) */ | |
6411 | push_delimiter (dstack, peek_char); | |
3185942a | 6412 | ttok = parse_comsub (cd, '(', ')', &ttoklen, P_COMMAND); |
28ef6c31 JA |
6413 | pop_delimiter (dstack); |
6414 | } | |
6415 | else | |
6416 | ttok = parse_matched_pair (cd, '[', ']', &ttoklen, 0); | |
6417 | if (ttok == &matched_pair_error) | |
6418 | return -1; /* Bail immediately. */ | |
6419 | RESIZE_MALLOCED_BUFFER (token, token_index, ttoklen + 2, | |
6420 | token_buffer_size, | |
6421 | TOKEN_DEFAULT_GROW_SIZE); | |
6422 | token[token_index++] = character; | |
6423 | token[token_index++] = peek_char; | |
6424 | strcpy (token + token_index, ttok); | |
6425 | token_index += ttoklen; | |
6426 | FREE (ttok); | |
6427 | dollar_present = 1; | |
f73dda09 | 6428 | all_digit_token = 0; |
28ef6c31 JA |
6429 | goto next_character; |
6430 | } | |
6431 | /* This handles $'...' and $"..." new-style quoted strings. */ | |
7117c2d2 | 6432 | else if MBTEST(character == '$' && (peek_char == '\'' || peek_char == '"')) |
28ef6c31 JA |
6433 | { |
6434 | int first_line; | |
726f6388 | 6435 | |
28ef6c31 JA |
6436 | first_line = line_number; |
6437 | push_delimiter (dstack, peek_char); | |
6438 | ttok = parse_matched_pair (peek_char, peek_char, peek_char, | |
6439 | &ttoklen, | |
6440 | (peek_char == '\'') ? P_ALLOWESC : 0); | |
6441 | pop_delimiter (dstack); | |
6442 | if (ttok == &matched_pair_error) | |
6443 | return -1; | |
6444 | if (peek_char == '\'') | |
6445 | { | |
6446 | ttrans = ansiexpand (ttok, 0, ttoklen - 1, &ttranslen); | |
6447 | free (ttok); | |
95732b49 | 6448 | |
28ef6c31 JA |
6449 | /* Insert the single quotes and correctly quote any |
6450 | embedded single quotes (allowed because P_ALLOWESC was | |
6451 | passed to parse_matched_pair). */ | |
6452 | ttok = sh_single_quote (ttrans); | |
6453 | free (ttrans); | |
95732b49 | 6454 | ttranslen = strlen (ttok); |
28ef6c31 | 6455 | ttrans = ttok; |
28ef6c31 JA |
6456 | } |
6457 | else | |
6458 | { | |
0628567a | 6459 | /* Try to locale-expand the converted string. */ |
28ef6c31 JA |
6460 | ttrans = localeexpand (ttok, 0, ttoklen - 1, first_line, &ttranslen); |
6461 | free (ttok); | |
726f6388 | 6462 | |
28ef6c31 | 6463 | /* Add the double quotes back */ |
95732b49 | 6464 | ttok = sh_mkdoublequoted (ttrans, ttranslen, 0); |
28ef6c31 | 6465 | free (ttrans); |
95732b49 | 6466 | ttranslen += 2; |
28ef6c31 JA |
6467 | ttrans = ttok; |
6468 | } | |
726f6388 | 6469 | |
28ef6c31 | 6470 | RESIZE_MALLOCED_BUFFER (token, token_index, ttranslen + 2, |
f73dda09 JA |
6471 | token_buffer_size, |
6472 | TOKEN_DEFAULT_GROW_SIZE); | |
6473 | strcpy (token + token_index, ttrans); | |
6474 | token_index += ttranslen; | |
6475 | FREE (ttrans); | |
6476 | quoted = 1; | |
6477 | all_digit_token = 0; | |
6478 | goto next_character; | |
6479 | } | |
6480 | /* This could eventually be extended to recognize all of the | |
6481 | shell's single-character parameter expansions, and set flags.*/ | |
7117c2d2 | 6482 | else if MBTEST(character == '$' && peek_char == '$') |
f73dda09 JA |
6483 | { |
6484 | ttok = (char *)xmalloc (3); | |
6485 | ttok[0] = ttok[1] = '$'; | |
6486 | ttok[2] = '\0'; | |
6487 | RESIZE_MALLOCED_BUFFER (token, token_index, 3, | |
6488 | token_buffer_size, | |
6489 | TOKEN_DEFAULT_GROW_SIZE); | |
6490 | strcpy (token + token_index, ttok); | |
6491 | token_index += 2; | |
6492 | dollar_present = 1; | |
6493 | all_digit_token = 0; | |
6494 | FREE (ttok); | |
6495 | goto next_character; | |
6496 | } | |
6497 | else | |
6498 | shell_ungetc (peek_char); | |
6499 | } | |
28ef6c31 | 6500 | |
f73dda09 | 6501 | #if defined (ARRAY_VARS) |
3185942a JA |
6502 | /* Identify possible array subscript assignment; match [...]. If |
6503 | parser_state&PST_COMPASSIGN, we need to parse [sub]=words treating | |
6504 | `sub' as if it were enclosed in double quotes. */ | |
6505 | else if MBTEST(character == '[' && /* ] */ | |
6506 | ((token_index > 0 && assignment_acceptable (last_read_token) && token_is_ident (token, token_index)) || | |
6507 | (token_index == 0 && (parser_state&PST_COMPASSIGN)))) | |
7117c2d2 JA |
6508 | { |
6509 | ttok = parse_matched_pair (cd, '[', ']', &ttoklen, 0); | |
6510 | if (ttok == &matched_pair_error) | |
6511 | return -1; /* Bail immediately. */ | |
6512 | RESIZE_MALLOCED_BUFFER (token, token_index, ttoklen + 2, | |
6513 | token_buffer_size, | |
6514 | TOKEN_DEFAULT_GROW_SIZE); | |
6515 | token[token_index++] = character; | |
6516 | strcpy (token + token_index, ttok); | |
6517 | token_index += ttoklen; | |
6518 | FREE (ttok); | |
6519 | all_digit_token = 0; | |
6520 | goto next_character; | |
6521 | } | |
f73dda09 | 6522 | /* Identify possible compound array variable assignment. */ |
95732b49 | 6523 | else if MBTEST(character == '=' && token_index > 0 && (assignment_acceptable (last_read_token) || (parser_state & PST_ASSIGNOK)) && token_is_assignment (token, token_index)) |
ccc6cda3 | 6524 | { |
f73dda09 | 6525 | peek_char = shell_getc (1); |
7117c2d2 | 6526 | if MBTEST(peek_char == '(') /* ) */ |
f73dda09 | 6527 | { |
7117c2d2 JA |
6528 | ttok = parse_compound_assignment (&ttoklen); |
6529 | ||
6530 | RESIZE_MALLOCED_BUFFER (token, token_index, ttoklen + 4, | |
f73dda09 JA |
6531 | token_buffer_size, |
6532 | TOKEN_DEFAULT_GROW_SIZE); | |
7117c2d2 JA |
6533 | |
6534 | token[token_index++] = '='; | |
6535 | token[token_index++] = '('; | |
6536 | if (ttok) | |
6537 | { | |
6538 | strcpy (token + token_index, ttok); | |
6539 | token_index += ttoklen; | |
6540 | } | |
6541 | token[token_index++] = ')'; | |
f73dda09 JA |
6542 | FREE (ttok); |
6543 | all_digit_token = 0; | |
95732b49 | 6544 | compound_assignment = 1; |
0628567a | 6545 | #if 1 |
f73dda09 | 6546 | goto next_character; |
95732b49 JA |
6547 | #else |
6548 | goto got_token; /* ksh93 seems to do this */ | |
6549 | #endif | |
f73dda09 JA |
6550 | } |
6551 | else | |
6552 | shell_ungetc (peek_char); | |
ccc6cda3 | 6553 | } |
f73dda09 | 6554 | #endif |
726f6388 | 6555 | |
f73dda09 JA |
6556 | /* When not parsing a multi-character word construct, shell meta- |
6557 | characters break words. */ | |
7117c2d2 | 6558 | if MBTEST(shellbreak (character)) |
f73dda09 JA |
6559 | { |
6560 | shell_ungetc (character); | |
6561 | goto got_token; | |
6562 | } | |
726f6388 | 6563 | |
f73dda09 | 6564 | got_character: |
726f6388 | 6565 | |
f73dda09 JA |
6566 | if (character == CTLESC || character == CTLNUL) |
6567 | token[token_index++] = CTLESC; | |
d166f048 | 6568 | |
3185942a JA |
6569 | got_escaped_character: |
6570 | ||
6571 | all_digit_token &= DIGIT (character); | |
6572 | dollar_present |= character == '$'; | |
6573 | ||
f73dda09 | 6574 | token[token_index++] = character; |
cce855bc | 6575 | |
f73dda09 JA |
6576 | RESIZE_MALLOCED_BUFFER (token, token_index, 1, token_buffer_size, |
6577 | TOKEN_DEFAULT_GROW_SIZE); | |
cce855bc | 6578 | |
f73dda09 | 6579 | next_character: |
b80f6443 | 6580 | if (character == '\n' && SHOULD_PROMPT ()) |
f73dda09 | 6581 | prompt_again (); |
cce855bc | 6582 | |
f73dda09 JA |
6583 | /* We want to remove quoted newlines (that is, a \<newline> pair) |
6584 | unless we are within single quotes or pass_next_character is | |
6585 | set (the shell equivalent of literal-next). */ | |
6586 | cd = current_delimiter (dstack); | |
6587 | character = shell_getc (cd != '\'' && pass_next_character == 0); | |
6588 | } /* end for (;;) */ | |
cce855bc | 6589 | |
f73dda09 | 6590 | got_token: |
cce855bc | 6591 | |
f73dda09 | 6592 | token[token_index] = '\0'; |
28ef6c31 | 6593 | |
f73dda09 JA |
6594 | /* Check to see what thing we should return. If the last_read_token |
6595 | is a `<', or a `&', or the character which ended this token is | |
6596 | a '>' or '<', then, and ONLY then, is this input token a NUMBER. | |
6597 | Otherwise, it is just a word, and should be returned as such. */ | |
7117c2d2 JA |
6598 | if MBTEST(all_digit_token && (character == '<' || character == '>' || \ |
6599 | last_read_token == LESS_AND || \ | |
f73dda09 JA |
6600 | last_read_token == GREATER_AND)) |
6601 | { | |
6602 | if (legal_number (token, &lvalue) && (int)lvalue == lvalue) | |
6603 | yylval.number = lvalue; | |
6604 | else | |
6605 | yylval.number = -1; | |
6606 | return (NUMBER); | |
6607 | } | |
cce855bc | 6608 | |
f73dda09 | 6609 | /* Check for special case tokens. */ |
7117c2d2 | 6610 | result = (last_shell_getc_is_singlebyte) ? special_case_tokens (token) : -1; |
f73dda09 JA |
6611 | if (result >= 0) |
6612 | return result; | |
cce855bc | 6613 | |
f73dda09 JA |
6614 | #if defined (ALIAS) |
6615 | /* Posix.2 does not allow reserved words to be aliased, so check for all | |
6616 | of them, including special cases, before expanding the current token | |
6617 | as an alias. */ | |
7117c2d2 | 6618 | if MBTEST(posixly_correct) |
f73dda09 | 6619 | CHECK_FOR_RESERVED_WORD (token); |
cce855bc | 6620 | |
f73dda09 JA |
6621 | /* Aliases are expanded iff EXPAND_ALIASES is non-zero, and quoting |
6622 | inhibits alias expansion. */ | |
6623 | if (expand_aliases && quoted == 0) | |
cce855bc | 6624 | { |
f73dda09 JA |
6625 | result = alias_expand_token (token); |
6626 | if (result == RE_READ_TOKEN) | |
6627 | return (RE_READ_TOKEN); | |
6628 | else if (result == NO_EXPANSION) | |
6629 | parser_state &= ~PST_ALEXPNEXT; | |
cce855bc | 6630 | } |
28ef6c31 | 6631 | |
f73dda09 JA |
6632 | /* If not in Posix.2 mode, check for reserved words after alias |
6633 | expansion. */ | |
7117c2d2 | 6634 | if MBTEST(posixly_correct == 0) |
f73dda09 JA |
6635 | #endif |
6636 | CHECK_FOR_RESERVED_WORD (token); | |
6637 | ||
6638 | the_word = (WORD_DESC *)xmalloc (sizeof (WORD_DESC)); | |
6639 | the_word->word = (char *)xmalloc (1 + token_index); | |
6640 | the_word->flags = 0; | |
6641 | strcpy (the_word->word, token); | |
6642 | if (dollar_present) | |
6643 | the_word->flags |= W_HASDOLLAR; | |
6644 | if (quoted) | |
0628567a JA |
6645 | the_word->flags |= W_QUOTED; /*(*/ |
6646 | if (compound_assignment && token[token_index-1] == ')') | |
95732b49 | 6647 | the_word->flags |= W_COMPASSIGN; |
f73dda09 JA |
6648 | /* A word is an assignment if it appears at the beginning of a |
6649 | simple command, or after another assignment word. This is | |
6650 | context-dependent, so it cannot be handled in the grammar. */ | |
b80f6443 | 6651 | if (assignment (token, (parser_state & PST_COMPASSIGN) != 0)) |
cce855bc | 6652 | { |
f73dda09 JA |
6653 | the_word->flags |= W_ASSIGNMENT; |
6654 | /* Don't perform word splitting on assignment statements. */ | |
b80f6443 | 6655 | if (assignment_acceptable (last_read_token) || (parser_state & PST_COMPASSIGN) != 0) |
f73dda09 | 6656 | the_word->flags |= W_NOSPLIT; |
cce855bc | 6657 | } |
28ef6c31 | 6658 | |
95732b49 JA |
6659 | if (command_token_position (last_read_token)) |
6660 | { | |
6661 | struct builtin *b; | |
6662 | b = builtin_address_internal (token, 0); | |
6663 | if (b && (b->flags & ASSIGNMENT_BUILTIN)) | |
0628567a JA |
6664 | parser_state |= PST_ASSIGNOK; |
6665 | else if (STREQ (token, "eval") || STREQ (token, "let")) | |
6666 | parser_state |= PST_ASSIGNOK; | |
95732b49 JA |
6667 | } |
6668 | ||
f73dda09 JA |
6669 | yylval.word = the_word; |
6670 | ||
6671 | result = ((the_word->flags & (W_ASSIGNMENT|W_NOSPLIT)) == (W_ASSIGNMENT|W_NOSPLIT)) | |
6672 | ? ASSIGNMENT_WORD : WORD; | |
6673 | ||
b80f6443 | 6674 | switch (last_read_token) |
cce855bc | 6675 | { |
b80f6443 | 6676 | case FUNCTION: |
f73dda09 JA |
6677 | parser_state |= PST_ALLOWOPNBRC; |
6678 | function_dstart = line_number; | |
b80f6443 JA |
6679 | break; |
6680 | case CASE: | |
6681 | case SELECT: | |
6682 | case FOR: | |
6683 | if (word_top < MAX_CASE_NEST) | |
6684 | word_top++; | |
6685 | word_lineno[word_top] = line_number; | |
6686 | break; | |
cce855bc | 6687 | } |
cce855bc | 6688 | |
f73dda09 | 6689 | return (result); |
28ef6c31 | 6690 | } |
cce855bc | 6691 | |
f73dda09 JA |
6692 | /* Return 1 if TOKSYM is a token that after being read would allow |
6693 | a reserved word to be seen, else 0. */ | |
6694 | static int | |
6695 | reserved_word_acceptable (toksym) | |
6696 | int toksym; | |
6697 | { | |
7117c2d2 JA |
6698 | switch (toksym) |
6699 | { | |
6700 | case '\n': | |
6701 | case ';': | |
6702 | case '(': | |
6703 | case ')': | |
6704 | case '|': | |
6705 | case '&': | |
6706 | case '{': | |
6707 | case '}': /* XXX */ | |
6708 | case AND_AND: | |
6709 | case BANG: | |
6710 | case DO: | |
6711 | case DONE: | |
6712 | case ELIF: | |
6713 | case ELSE: | |
6714 | case ESAC: | |
6715 | case FI: | |
6716 | case IF: | |
6717 | case OR_OR: | |
6718 | case SEMI_SEMI: | |
3185942a JA |
6719 | case SEMI_AND: |
6720 | case SEMI_SEMI_AND: | |
7117c2d2 JA |
6721 | case THEN: |
6722 | case TIME: | |
6723 | case TIMEOPT: | |
3185942a | 6724 | case COPROC: |
7117c2d2 JA |
6725 | case UNTIL: |
6726 | case WHILE: | |
6727 | case 0: | |
6728 | return 1; | |
6729 | default: | |
3185942a JA |
6730 | #if defined (COPROCESS_SUPPORT) |
6731 | if (last_read_token == WORD && token_before_that == COPROC) | |
6732 | return 1; | |
6733 | #endif | |
7117c2d2 JA |
6734 | return 0; |
6735 | } | |
f73dda09 | 6736 | } |
7117c2d2 | 6737 | |
f73dda09 JA |
6738 | /* Return the index of TOKEN in the alist of reserved words, or -1 if |
6739 | TOKEN is not a shell reserved word. */ | |
6740 | int | |
6741 | find_reserved_word (tokstr) | |
6742 | char *tokstr; | |
6743 | { | |
6744 | int i; | |
6745 | for (i = 0; word_token_alist[i].word; i++) | |
6746 | if (STREQ (tokstr, word_token_alist[i].word)) | |
6747 | return i; | |
6748 | return -1; | |
6749 | } | |
ccc6cda3 | 6750 | |
f73dda09 JA |
6751 | #if 0 |
6752 | #if defined (READLINE) | |
6753 | /* Called after each time readline is called. This insures that whatever | |
6754 | the new prompt string is gets propagated to readline's local prompt | |
6755 | variable. */ | |
6756 | static void | |
6757 | reset_readline_prompt () | |
6758 | { | |
6759 | char *temp_prompt; | |
726f6388 | 6760 | |
f73dda09 JA |
6761 | if (prompt_string_pointer) |
6762 | { | |
6763 | temp_prompt = (*prompt_string_pointer) | |
6764 | ? decode_prompt_string (*prompt_string_pointer) | |
6765 | : (char *)NULL; | |
726f6388 | 6766 | |
f73dda09 JA |
6767 | if (temp_prompt == 0) |
6768 | { | |
6769 | temp_prompt = (char *)xmalloc (1); | |
6770 | temp_prompt[0] = '\0'; | |
6771 | } | |
ccc6cda3 | 6772 | |
f73dda09 JA |
6773 | FREE (current_readline_prompt); |
6774 | current_readline_prompt = temp_prompt; | |
6775 | } | |
6776 | } | |
6777 | #endif /* READLINE */ | |
6778 | #endif /* 0 */ | |
726f6388 | 6779 | |
f73dda09 JA |
6780 | #if defined (HISTORY) |
6781 | /* A list of tokens which can be followed by newlines, but not by | |
6782 | semi-colons. When concatenating multiple lines of history, the | |
6783 | newline separator for such tokens is replaced with a space. */ | |
3185942a | 6784 | static const int no_semi_successors[] = { |
f73dda09 | 6785 | '\n', '{', '(', ')', ';', '&', '|', |
3185942a JA |
6786 | CASE, DO, ELSE, IF, SEMI_SEMI, SEMI_AND, SEMI_SEMI_AND, THEN, UNTIL, |
6787 | WHILE, AND_AND, OR_OR, IN, | |
f73dda09 JA |
6788 | 0 |
6789 | }; | |
ccc6cda3 | 6790 | |
f73dda09 JA |
6791 | /* If we are not within a delimited expression, try to be smart |
6792 | about which separators can be semi-colons and which must be | |
6793 | newlines. Returns the string that should be added into the | |
6794 | history entry. */ | |
6795 | char * | |
6796 | history_delimiting_chars () | |
6797 | { | |
6798 | register int i; | |
726f6388 | 6799 | |
f73dda09 JA |
6800 | if (dstack.delimiter_depth != 0) |
6801 | return ("\n"); | |
3185942a JA |
6802 | |
6803 | /* We look for current_command_line_count == 2 because we are looking to | |
6804 | add the first line of the body of the here document (the second line | |
6805 | of the command). */ | |
6806 | if (parser_state & PST_HEREDOC) | |
6807 | return (current_command_line_count == 2 ? "\n" : ""); | |
6808 | ||
f73dda09 JA |
6809 | /* First, handle some special cases. */ |
6810 | /*(*/ | |
6811 | /* If we just read `()', assume it's a function definition, and don't | |
6812 | add a semicolon. If the token before the `)' was not `(', and we're | |
6813 | not in the midst of parsing a case statement, assume it's a | |
6814 | parenthesized command and add the semicolon. */ | |
6815 | /*)(*/ | |
6816 | if (token_before_that == ')') | |
6817 | { | |
6818 | if (two_tokens_ago == '(') /*)*/ /* function def */ | |
6819 | return " "; | |
6820 | /* This does not work for subshells inside case statement | |
6821 | command lists. It's a suboptimal solution. */ | |
6822 | else if (parser_state & PST_CASESTMT) /* case statement pattern */ | |
6823 | return " "; | |
6824 | else | |
6825 | return "; "; /* (...) subshell */ | |
6826 | } | |
6827 | else if (token_before_that == WORD && two_tokens_ago == FUNCTION) | |
6828 | return " "; /* function def using `function name' without `()' */ | |
726f6388 | 6829 | |
f73dda09 JA |
6830 | else if (token_before_that == WORD && two_tokens_ago == FOR) |
6831 | { | |
6832 | /* Tricky. `for i\nin ...' should not have a semicolon, but | |
6833 | `for i\ndo ...' should. We do what we can. */ | |
3185942a | 6834 | for (i = shell_input_line_index; whitespace (shell_input_line[i]); i++) |
f73dda09 JA |
6835 | ; |
6836 | if (shell_input_line[i] && shell_input_line[i] == 'i' && shell_input_line[i+1] == 'n') | |
6837 | return " "; | |
6838 | return ";"; | |
6839 | } | |
95732b49 JA |
6840 | else if (two_tokens_ago == CASE && token_before_that == WORD && (parser_state & PST_CASESTMT)) |
6841 | return " "; | |
726f6388 | 6842 | |
f73dda09 JA |
6843 | for (i = 0; no_semi_successors[i]; i++) |
6844 | { | |
6845 | if (token_before_that == no_semi_successors[i]) | |
6846 | return (" "); | |
6847 | } | |
726f6388 | 6848 | |
f73dda09 JA |
6849 | return ("; "); |
6850 | } | |
6851 | #endif /* HISTORY */ | |
ccc6cda3 | 6852 | |
f73dda09 JA |
6853 | /* Issue a prompt, or prepare to issue a prompt when the next character |
6854 | is read. */ | |
6855 | static void | |
6856 | prompt_again () | |
6857 | { | |
6858 | char *temp_prompt; | |
726f6388 | 6859 | |
b80f6443 | 6860 | if (interactive == 0 || expanding_alias()) /* XXX */ |
f73dda09 | 6861 | return; |
726f6388 | 6862 | |
f73dda09 JA |
6863 | ps1_prompt = get_string_value ("PS1"); |
6864 | ps2_prompt = get_string_value ("PS2"); | |
28ef6c31 | 6865 | |
f73dda09 JA |
6866 | if (!prompt_string_pointer) |
6867 | prompt_string_pointer = &ps1_prompt; | |
28ef6c31 | 6868 | |
f73dda09 JA |
6869 | temp_prompt = *prompt_string_pointer |
6870 | ? decode_prompt_string (*prompt_string_pointer) | |
6871 | : (char *)NULL; | |
28ef6c31 | 6872 | |
f73dda09 JA |
6873 | if (temp_prompt == 0) |
6874 | { | |
6875 | temp_prompt = (char *)xmalloc (1); | |
6876 | temp_prompt[0] = '\0'; | |
28ef6c31 | 6877 | } |
28ef6c31 | 6878 | |
f73dda09 JA |
6879 | current_prompt_string = *prompt_string_pointer; |
6880 | prompt_string_pointer = &ps2_prompt; | |
28ef6c31 | 6881 | |
f73dda09 JA |
6882 | #if defined (READLINE) |
6883 | if (!no_line_editing) | |
ccc6cda3 | 6884 | { |
f73dda09 JA |
6885 | FREE (current_readline_prompt); |
6886 | current_readline_prompt = temp_prompt; | |
ccc6cda3 JA |
6887 | } |
6888 | else | |
f73dda09 | 6889 | #endif /* READLINE */ |
ccc6cda3 | 6890 | { |
f73dda09 JA |
6891 | FREE (current_decoded_prompt); |
6892 | current_decoded_prompt = temp_prompt; | |
ccc6cda3 JA |
6893 | } |
6894 | } | |
726f6388 | 6895 | |
28ef6c31 | 6896 | int |
f73dda09 | 6897 | get_current_prompt_level () |
bb70624e | 6898 | { |
f73dda09 | 6899 | return ((current_prompt_string && current_prompt_string == ps2_prompt) ? 2 : 1); |
28ef6c31 | 6900 | } |
bb70624e | 6901 | |
f73dda09 JA |
6902 | void |
6903 | set_current_prompt_level (x) | |
6904 | int x; | |
6905 | { | |
6906 | prompt_string_pointer = (x == 2) ? &ps2_prompt : &ps1_prompt; | |
6907 | current_prompt_string = *prompt_string_pointer; | |
6908 | } | |
6909 | ||
28ef6c31 | 6910 | static void |
f73dda09 | 6911 | print_prompt () |
28ef6c31 | 6912 | { |
f73dda09 JA |
6913 | fprintf (stderr, "%s", current_decoded_prompt); |
6914 | fflush (stderr); | |
6915 | } | |
bb70624e | 6916 | |
f73dda09 JA |
6917 | /* Return a string which will be printed as a prompt. The string |
6918 | may contain special characters which are decoded as follows: | |
726f6388 | 6919 | |
f73dda09 | 6920 | \a bell (ascii 07) |
f73dda09 | 6921 | \d the date in Day Mon Date format |
7117c2d2 | 6922 | \e escape (ascii 033) |
f73dda09 JA |
6923 | \h the hostname up to the first `.' |
6924 | \H the hostname | |
6925 | \j the number of active jobs | |
6926 | \l the basename of the shell's tty device name | |
6927 | \n CRLF | |
7117c2d2 | 6928 | \r CR |
f73dda09 JA |
6929 | \s the name of the shell |
6930 | \t the time in 24-hour hh:mm:ss format | |
6931 | \T the time in 12-hour hh:mm:ss format | |
7117c2d2 JA |
6932 | \@ the time in 12-hour hh:mm am/pm format |
6933 | \A the time in 24-hour hh:mm format | |
6934 | \D{fmt} the result of passing FMT to strftime(3) | |
6935 | \u your username | |
f73dda09 JA |
6936 | \v the version of bash (e.g., 2.00) |
6937 | \V the release of bash, version + patchlevel (e.g., 2.00.0) | |
6938 | \w the current working directory | |
6939 | \W the last element of $PWD | |
f73dda09 | 6940 | \! the history number of this command |
7117c2d2 | 6941 | \# the command number of this command |
f73dda09 JA |
6942 | \$ a $ or a # if you are root |
6943 | \nnn character code nnn in octal | |
6944 | \\ a backslash | |
6945 | \[ begin a sequence of non-printing chars | |
6946 | \] end a sequence of non-printing chars | |
6947 | */ | |
6948 | #define PROMPT_GROWTH 48 | |
6949 | char * | |
6950 | decode_prompt_string (string) | |
6951 | char *string; | |
6952 | { | |
6953 | WORD_LIST *list; | |
6954 | char *result, *t; | |
6955 | struct dstack save_dstack; | |
6956 | int last_exit_value; | |
6957 | #if defined (PROMPT_STRING_DECODE) | |
6958 | int result_size, result_index; | |
0628567a | 6959 | int c, n, i; |
f73dda09 | 6960 | char *temp, octal_string[4]; |
7117c2d2 | 6961 | struct tm *tm; |
f73dda09 | 6962 | time_t the_time; |
7117c2d2 JA |
6963 | char timebuf[128]; |
6964 | char *timefmt; | |
726f6388 | 6965 | |
f73dda09 JA |
6966 | result = (char *)xmalloc (result_size = PROMPT_GROWTH); |
6967 | result[result_index = 0] = 0; | |
6968 | temp = (char *)NULL; | |
28ef6c31 | 6969 | |
f73dda09 JA |
6970 | while (c = *string++) |
6971 | { | |
6972 | if (posixly_correct && c == '!') | |
bb70624e | 6973 | { |
f73dda09 | 6974 | if (*string == '!') |
28ef6c31 | 6975 | { |
f73dda09 JA |
6976 | temp = savestring ("!"); |
6977 | goto add_string; | |
6978 | } | |
6979 | else | |
6980 | { | |
6981 | #if !defined (HISTORY) | |
6982 | temp = savestring ("1"); | |
6983 | #else /* HISTORY */ | |
6984 | temp = itos (history_number ()); | |
6985 | #endif /* HISTORY */ | |
6986 | string--; /* add_string increments string again. */ | |
6987 | goto add_string; | |
28ef6c31 | 6988 | } |
28ef6c31 | 6989 | } |
f73dda09 JA |
6990 | if (c == '\\') |
6991 | { | |
6992 | c = *string; | |
726f6388 | 6993 | |
f73dda09 JA |
6994 | switch (c) |
6995 | { | |
6996 | case '0': | |
6997 | case '1': | |
6998 | case '2': | |
6999 | case '3': | |
7000 | case '4': | |
7001 | case '5': | |
7002 | case '6': | |
7003 | case '7': | |
7004 | strncpy (octal_string, string, 3); | |
7005 | octal_string[3] = '\0'; | |
726f6388 | 7006 | |
f73dda09 JA |
7007 | n = read_octal (octal_string); |
7008 | temp = (char *)xmalloc (3); | |
726f6388 | 7009 | |
f73dda09 JA |
7010 | if (n == CTLESC || n == CTLNUL) |
7011 | { | |
7012 | temp[0] = CTLESC; | |
7013 | temp[1] = n; | |
7014 | temp[2] = '\0'; | |
7015 | } | |
7016 | else if (n == -1) | |
7017 | { | |
7018 | temp[0] = '\\'; | |
7019 | temp[1] = '\0'; | |
7020 | } | |
7021 | else | |
7022 | { | |
7023 | temp[0] = n; | |
7024 | temp[1] = '\0'; | |
7025 | } | |
28ef6c31 | 7026 | |
f73dda09 JA |
7027 | for (c = 0; n != -1 && c < 3 && ISOCTAL (*string); c++) |
7028 | string++; | |
28ef6c31 | 7029 | |
7117c2d2 | 7030 | c = 0; /* tested at add_string: */ |
f73dda09 | 7031 | goto add_string; |
28ef6c31 | 7032 | |
f73dda09 | 7033 | case 'd': |
7117c2d2 | 7034 | case 't': |
f73dda09 JA |
7035 | case 'T': |
7036 | case '@': | |
7037 | case 'A': | |
7038 | /* Make the current time/date into a string. */ | |
7117c2d2 JA |
7039 | (void) time (&the_time); |
7040 | tm = localtime (&the_time); | |
7041 | ||
7042 | if (c == 'd') | |
7043 | n = strftime (timebuf, sizeof (timebuf), "%a %b %d", tm); | |
7044 | else if (c == 't') | |
7045 | n = strftime (timebuf, sizeof (timebuf), "%H:%M:%S", tm); | |
7046 | else if (c == 'T') | |
7047 | n = strftime (timebuf, sizeof (timebuf), "%I:%M:%S", tm); | |
7048 | else if (c == '@') | |
7049 | n = strftime (timebuf, sizeof (timebuf), "%I:%M %p", tm); | |
7050 | else if (c == 'A') | |
7051 | n = strftime (timebuf, sizeof (timebuf), "%H:%M", tm); | |
7052 | ||
b80f6443 JA |
7053 | if (n == 0) |
7054 | timebuf[0] = '\0'; | |
7055 | else | |
7056 | timebuf[sizeof(timebuf) - 1] = '\0'; | |
7057 | ||
7117c2d2 JA |
7058 | temp = savestring (timebuf); |
7059 | goto add_string; | |
726f6388 | 7060 | |
7117c2d2 JA |
7061 | case 'D': /* strftime format */ |
7062 | if (string[1] != '{') /* } */ | |
7063 | goto not_escape; | |
726f6388 | 7064 | |
7117c2d2 JA |
7065 | (void) time (&the_time); |
7066 | tm = localtime (&the_time); | |
7067 | string += 2; /* skip { */ | |
7068 | timefmt = xmalloc (strlen (string) + 3); | |
7069 | for (t = timefmt; *string && *string != '}'; ) | |
7070 | *t++ = *string++; | |
7071 | *t = '\0'; | |
7072 | c = *string; /* tested at add_string */ | |
7073 | if (timefmt[0] == '\0') | |
f73dda09 | 7074 | { |
7117c2d2 JA |
7075 | timefmt[0] = '%'; |
7076 | timefmt[1] = 'X'; /* locale-specific current time */ | |
7077 | timefmt[2] = '\0'; | |
f73dda09 | 7078 | } |
7117c2d2 JA |
7079 | n = strftime (timebuf, sizeof (timebuf), timefmt, tm); |
7080 | free (timefmt); | |
7081 | ||
b80f6443 JA |
7082 | if (n == 0) |
7083 | timebuf[0] = '\0'; | |
7084 | else | |
7085 | timebuf[sizeof(timebuf) - 1] = '\0'; | |
7086 | ||
7117c2d2 JA |
7087 | if (promptvars || posixly_correct) |
7088 | /* Make sure that expand_prompt_string is called with a | |
7089 | second argument of Q_DOUBLE_QUOTES if we use this | |
7090 | function here. */ | |
7091 | temp = sh_backslash_quote_for_double_quotes (timebuf); | |
7092 | else | |
7093 | temp = savestring (timebuf); | |
f73dda09 | 7094 | goto add_string; |
7117c2d2 | 7095 | |
f73dda09 JA |
7096 | case 'n': |
7097 | temp = (char *)xmalloc (3); | |
7098 | temp[0] = no_line_editing ? '\n' : '\r'; | |
7099 | temp[1] = no_line_editing ? '\0' : '\n'; | |
7100 | temp[2] = '\0'; | |
7101 | goto add_string; | |
ccc6cda3 | 7102 | |
f73dda09 JA |
7103 | case 's': |
7104 | temp = base_pathname (shell_name); | |
7105 | temp = savestring (temp); | |
7106 | goto add_string; | |
726f6388 | 7107 | |
f73dda09 JA |
7108 | case 'v': |
7109 | case 'V': | |
7117c2d2 | 7110 | temp = (char *)xmalloc (16); |
f73dda09 JA |
7111 | if (c == 'v') |
7112 | strcpy (temp, dist_version); | |
7113 | else | |
7114 | sprintf (temp, "%s.%d", dist_version, patch_level); | |
7115 | goto add_string; | |
bb70624e | 7116 | |
f73dda09 JA |
7117 | case 'w': |
7118 | case 'W': | |
7119 | { | |
7120 | /* Use the value of PWD because it is much more efficient. */ | |
0628567a | 7121 | char t_string[PATH_MAX]; |
f73dda09 | 7122 | int tlen; |
28ef6c31 | 7123 | |
f73dda09 | 7124 | temp = get_string_value ("PWD"); |
ccc6cda3 | 7125 | |
f73dda09 JA |
7126 | if (temp == 0) |
7127 | { | |
7128 | if (getcwd (t_string, sizeof(t_string)) == 0) | |
7129 | { | |
7130 | t_string[0] = '.'; | |
7131 | tlen = 1; | |
7132 | } | |
7133 | else | |
7134 | tlen = strlen (t_string); | |
7135 | } | |
7136 | else | |
7137 | { | |
7138 | tlen = sizeof (t_string) - 1; | |
7139 | strncpy (t_string, temp, tlen); | |
7140 | } | |
7141 | t_string[tlen] = '\0'; | |
726f6388 | 7142 | |
f73dda09 JA |
7143 | #define ROOT_PATH(x) ((x)[0] == '/' && (x)[1] == 0) |
7144 | #define DOUBLE_SLASH_ROOT(x) ((x)[0] == '/' && (x)[1] == '/' && (x)[2] == 0) | |
b80f6443 | 7145 | /* Abbreviate \W as ~ if $PWD == $HOME */ |
95732b49 | 7146 | if (c == 'W' && (((t = get_string_value ("HOME")) == 0) || STREQ (t, t_string) == 0)) |
f73dda09 JA |
7147 | { |
7148 | if (ROOT_PATH (t_string) == 0 && DOUBLE_SLASH_ROOT (t_string) == 0) | |
7149 | { | |
7150 | t = strrchr (t_string, '/'); | |
7151 | if (t) | |
7152 | strcpy (t_string, t + 1); | |
7153 | } | |
7154 | } | |
7155 | #undef ROOT_PATH | |
7156 | #undef DOUBLE_SLASH_ROOT | |
7157 | else | |
7158 | /* polite_directory_format is guaranteed to return a string | |
7159 | no longer than PATH_MAX - 1 characters. */ | |
7160 | strcpy (t_string, polite_directory_format (t_string)); | |
726f6388 | 7161 | |
3185942a | 7162 | temp = trim_pathname (t_string, PATH_MAX - 1); |
f73dda09 JA |
7163 | /* If we're going to be expanding the prompt string later, |
7164 | quote the directory name. */ | |
7165 | if (promptvars || posixly_correct) | |
7166 | /* Make sure that expand_prompt_string is called with a | |
7117c2d2 | 7167 | second argument of Q_DOUBLE_QUOTES if we use this |
f73dda09 JA |
7168 | function here. */ |
7169 | temp = sh_backslash_quote_for_double_quotes (t_string); | |
7170 | else | |
7171 | temp = savestring (t_string); | |
726f6388 | 7172 | |
f73dda09 JA |
7173 | goto add_string; |
7174 | } | |
726f6388 | 7175 | |
f73dda09 JA |
7176 | case 'u': |
7177 | if (current_user.user_name == 0) | |
7178 | get_current_user_info (); | |
7179 | temp = savestring (current_user.user_name); | |
7180 | goto add_string; | |
726f6388 | 7181 | |
f73dda09 JA |
7182 | case 'h': |
7183 | case 'H': | |
7184 | temp = savestring (current_host_name); | |
7185 | if (c == 'h' && (t = (char *)strchr (temp, '.'))) | |
7186 | *t = '\0'; | |
7187 | goto add_string; | |
726f6388 | 7188 | |
f73dda09 JA |
7189 | case '#': |
7190 | temp = itos (current_command_number); | |
7191 | goto add_string; | |
28ef6c31 | 7192 | |
f73dda09 JA |
7193 | case '!': |
7194 | #if !defined (HISTORY) | |
7195 | temp = savestring ("1"); | |
7196 | #else /* HISTORY */ | |
7197 | temp = itos (history_number ()); | |
7198 | #endif /* HISTORY */ | |
7199 | goto add_string; | |
726f6388 | 7200 | |
f73dda09 JA |
7201 | case '$': |
7202 | t = temp = (char *)xmalloc (3); | |
7203 | if ((promptvars || posixly_correct) && (current_user.euid != 0)) | |
7204 | *t++ = '\\'; | |
7205 | *t++ = current_user.euid == 0 ? '#' : '$'; | |
7206 | *t = '\0'; | |
7207 | goto add_string; | |
726f6388 | 7208 | |
f73dda09 JA |
7209 | case 'j': |
7210 | temp = itos (count_all_jobs ()); | |
7211 | goto add_string; | |
28ef6c31 | 7212 | |
f73dda09 JA |
7213 | case 'l': |
7214 | #if defined (HAVE_TTYNAME) | |
7215 | temp = (char *)ttyname (fileno (stdin)); | |
7216 | t = temp ? base_pathname (temp) : "tty"; | |
7217 | temp = savestring (t); | |
7218 | #else | |
7219 | temp = savestring ("tty"); | |
7220 | #endif /* !HAVE_TTYNAME */ | |
7221 | goto add_string; | |
726f6388 | 7222 | |
f73dda09 JA |
7223 | #if defined (READLINE) |
7224 | case '[': | |
7225 | case ']': | |
b80f6443 JA |
7226 | if (no_line_editing) |
7227 | { | |
7228 | string++; | |
7229 | break; | |
7230 | } | |
f73dda09 | 7231 | temp = (char *)xmalloc (3); |
0628567a JA |
7232 | n = (c == '[') ? RL_PROMPT_START_IGNORE : RL_PROMPT_END_IGNORE; |
7233 | i = 0; | |
7234 | if (n == CTLESC || n == CTLNUL) | |
7235 | temp[i++] = CTLESC; | |
7236 | temp[i++] = n; | |
7237 | temp[i] = '\0'; | |
f73dda09 JA |
7238 | goto add_string; |
7239 | #endif /* READLINE */ | |
ccc6cda3 | 7240 | |
f73dda09 | 7241 | case '\\': |
f73dda09 JA |
7242 | case 'a': |
7243 | case 'e': | |
7117c2d2 | 7244 | case 'r': |
f73dda09 | 7245 | temp = (char *)xmalloc (2); |
7117c2d2 JA |
7246 | if (c == 'a') |
7247 | temp[0] = '\07'; | |
7248 | else if (c == 'e') | |
7249 | temp[0] = '\033'; | |
7250 | else if (c == 'r') | |
7251 | temp[0] = '\r'; | |
7252 | else /* (c == '\\') */ | |
7253 | temp[0] = c; | |
f73dda09 JA |
7254 | temp[1] = '\0'; |
7255 | goto add_string; | |
7256 | ||
7257 | default: | |
7117c2d2 | 7258 | not_escape: |
f73dda09 JA |
7259 | temp = (char *)xmalloc (3); |
7260 | temp[0] = '\\'; | |
7261 | temp[1] = c; | |
7262 | temp[2] = '\0'; | |
7263 | ||
7264 | add_string: | |
7265 | if (c) | |
7266 | string++; | |
7267 | result = | |
7268 | sub_append_string (temp, result, &result_index, &result_size); | |
7269 | temp = (char *)NULL; /* Freed in sub_append_string (). */ | |
7270 | result[result_index] = '\0'; | |
7271 | break; | |
7272 | } | |
7273 | } | |
7274 | else | |
7275 | { | |
7276 | RESIZE_MALLOCED_BUFFER (result, result_index, 3, result_size, PROMPT_GROWTH); | |
7277 | result[result_index++] = c; | |
7278 | result[result_index] = '\0'; | |
7279 | } | |
7280 | } | |
7281 | #else /* !PROMPT_STRING_DECODE */ | |
7282 | result = savestring (string); | |
7283 | #endif /* !PROMPT_STRING_DECODE */ | |
7284 | ||
7285 | /* Save the delimiter stack and point `dstack' to temp space so any | |
7286 | command substitutions in the prompt string won't result in screwing | |
7287 | up the parser's quoting state. */ | |
7288 | save_dstack = dstack; | |
7289 | dstack = temp_dstack; | |
7290 | dstack.delimiter_depth = 0; | |
7291 | ||
7292 | /* Perform variable and parameter expansion and command substitution on | |
7293 | the prompt string. */ | |
7294 | if (promptvars || posixly_correct) | |
7295 | { | |
7296 | last_exit_value = last_command_exit_value; | |
3185942a | 7297 | list = expand_prompt_string (result, Q_DOUBLE_QUOTES, 0); |
f73dda09 JA |
7298 | free (result); |
7299 | result = string_list (list); | |
7300 | dispose_words (list); | |
7301 | last_command_exit_value = last_exit_value; | |
7302 | } | |
7303 | else | |
7304 | { | |
7305 | t = dequote_string (result); | |
7306 | free (result); | |
7307 | result = t; | |
7308 | } | |
7309 | ||
7310 | dstack = save_dstack; | |
7311 | ||
7312 | return (result); | |
7313 | } | |
7314 | ||
7117c2d2 JA |
7315 | /************************************************ |
7316 | * * | |
7317 | * ERROR HANDLING * | |
7318 | * * | |
7319 | ************************************************/ | |
7320 | ||
f73dda09 JA |
7321 | /* Report a syntax error, and restart the parser. Call here for fatal |
7322 | errors. */ | |
7323 | int | |
7324 | yyerror (msg) | |
7325 | const char *msg; | |
726f6388 | 7326 | { |
f73dda09 JA |
7327 | report_syntax_error ((char *)NULL); |
7328 | reset_parser (); | |
7329 | return (0); | |
7330 | } | |
7331 | ||
7117c2d2 | 7332 | static char * |
0628567a JA |
7333 | error_token_from_token (tok) |
7334 | int tok; | |
7117c2d2 JA |
7335 | { |
7336 | char *t; | |
7337 | ||
0628567a | 7338 | if (t = find_token_in_alist (tok, word_token_alist, 0)) |
7117c2d2 JA |
7339 | return t; |
7340 | ||
0628567a | 7341 | if (t = find_token_in_alist (tok, other_token_alist, 0)) |
7117c2d2 JA |
7342 | return t; |
7343 | ||
7344 | t = (char *)NULL; | |
7345 | /* This stuff is dicy and needs closer inspection */ | |
7346 | switch (current_token) | |
7347 | { | |
7348 | case WORD: | |
7349 | case ASSIGNMENT_WORD: | |
7350 | if (yylval.word) | |
7351 | t = savestring (yylval.word->word); | |
7352 | break; | |
7353 | case NUMBER: | |
7354 | t = itos (yylval.number); | |
7355 | break; | |
7356 | case ARITH_CMD: | |
7357 | if (yylval.word_list) | |
7358 | t = string_list (yylval.word_list); | |
7359 | break; | |
7360 | case ARITH_FOR_EXPRS: | |
7361 | if (yylval.word_list) | |
7362 | t = string_list_internal (yylval.word_list, " ; "); | |
7363 | break; | |
7364 | case COND_CMD: | |
7365 | t = (char *)NULL; /* punt */ | |
7366 | break; | |
7367 | } | |
7368 | ||
7369 | return t; | |
7370 | } | |
7371 | ||
7372 | static char * | |
7373 | error_token_from_text () | |
7374 | { | |
7375 | char *msg, *t; | |
7376 | int token_end, i; | |
7377 | ||
7378 | t = shell_input_line; | |
7379 | i = shell_input_line_index; | |
7380 | token_end = 0; | |
7381 | msg = (char *)NULL; | |
7382 | ||
7383 | if (i && t[i] == '\0') | |
7384 | i--; | |
7385 | ||
7386 | while (i && (whitespace (t[i]) || t[i] == '\n')) | |
7387 | i--; | |
7388 | ||
7389 | if (i) | |
7390 | token_end = i + 1; | |
7391 | ||
7392 | while (i && (member (t[i], " \n\t;|&") == 0)) | |
7393 | i--; | |
7394 | ||
7395 | while (i != token_end && (whitespace (t[i]) || t[i] == '\n')) | |
7396 | i++; | |
7397 | ||
7398 | /* Return our idea of the offending token. */ | |
7399 | if (token_end || (i == 0 && token_end == 0)) | |
7400 | { | |
7401 | if (token_end) | |
7402 | msg = substring (t, i, token_end); | |
7403 | else /* one-character token */ | |
7404 | { | |
7405 | msg = (char *)xmalloc (2); | |
7406 | msg[0] = t[i]; | |
7407 | msg[1] = '\0'; | |
7408 | } | |
7409 | } | |
7410 | ||
7411 | return (msg); | |
7412 | } | |
7413 | ||
7414 | static void | |
7415 | print_offending_line () | |
7416 | { | |
7417 | char *msg; | |
7418 | int token_end; | |
7419 | ||
7420 | msg = savestring (shell_input_line); | |
7421 | token_end = strlen (msg); | |
7422 | while (token_end && msg[token_end - 1] == '\n') | |
7423 | msg[--token_end] = '\0'; | |
7424 | ||
7425 | parser_error (line_number, "`%s'", msg); | |
7426 | free (msg); | |
7427 | } | |
7428 | ||
f73dda09 JA |
7429 | /* Report a syntax error with line numbers, etc. |
7430 | Call here for recoverable errors. If you have a message to print, | |
7431 | then place it in MESSAGE, otherwise pass NULL and this will figure | |
7432 | out an appropriate message for you. */ | |
7433 | static void | |
7434 | report_syntax_error (message) | |
7435 | char *message; | |
726f6388 | 7436 | { |
7117c2d2 | 7437 | char *msg; |
f73dda09 JA |
7438 | |
7439 | if (message) | |
7440 | { | |
7441 | parser_error (line_number, "%s", message); | |
7442 | if (interactive && EOF_Reached) | |
7443 | EOF_Reached = 0; | |
7444 | last_command_exit_value = EX_USAGE; | |
7445 | return; | |
7446 | } | |
7447 | ||
7448 | /* If the line of input we're reading is not null, try to find the | |
7117c2d2 JA |
7449 | objectionable token. First, try to figure out what token the |
7450 | parser's complaining about by looking at current_token. */ | |
7451 | if (current_token != 0 && EOF_Reached == 0 && (msg = error_token_from_token (current_token))) | |
f73dda09 | 7452 | { |
b80f6443 | 7453 | parser_error (line_number, _("syntax error near unexpected token `%s'"), msg); |
7117c2d2 | 7454 | free (msg); |
f73dda09 | 7455 | |
7117c2d2 JA |
7456 | if (interactive == 0) |
7457 | print_offending_line (); | |
f73dda09 | 7458 | |
7117c2d2 JA |
7459 | last_command_exit_value = EX_USAGE; |
7460 | return; | |
7461 | } | |
f73dda09 | 7462 | |
7117c2d2 JA |
7463 | /* If looking at the current token doesn't prove fruitful, try to find the |
7464 | offending token by analyzing the text of the input line near the current | |
7465 | input line index and report what we find. */ | |
7466 | if (shell_input_line && *shell_input_line) | |
7467 | { | |
7468 | msg = error_token_from_text (); | |
7469 | if (msg) | |
f73dda09 | 7470 | { |
b80f6443 | 7471 | parser_error (line_number, _("syntax error near `%s'"), msg); |
7117c2d2 | 7472 | free (msg); |
f73dda09 JA |
7473 | } |
7474 | ||
7475 | /* If not interactive, print the line containing the error. */ | |
7476 | if (interactive == 0) | |
7117c2d2 | 7477 | print_offending_line (); |
f73dda09 JA |
7478 | } |
7479 | else | |
7480 | { | |
b80f6443 | 7481 | msg = EOF_Reached ? _("syntax error: unexpected end of file") : _("syntax error"); |
f73dda09 JA |
7482 | parser_error (line_number, "%s", msg); |
7483 | /* When the shell is interactive, this file uses EOF_Reached | |
7484 | only for error reporting. Other mechanisms are used to | |
7485 | decide whether or not to exit. */ | |
7486 | if (interactive && EOF_Reached) | |
7487 | EOF_Reached = 0; | |
7488 | } | |
7117c2d2 | 7489 | |
f73dda09 JA |
7490 | last_command_exit_value = EX_USAGE; |
7491 | } | |
7492 | ||
7493 | /* ??? Needed function. ??? We have to be able to discard the constructs | |
7494 | created during parsing. In the case of error, we want to return | |
7495 | allocated objects to the memory pool. In the case of no error, we want | |
7496 | to throw away the information about where the allocated objects live. | |
7117c2d2 | 7497 | (dispose_command () will actually free the command.) */ |
f73dda09 JA |
7498 | static void |
7499 | discard_parser_constructs (error_p) | |
7500 | int error_p; | |
28ef6c31 | 7501 | { |
f73dda09 JA |
7502 | } |
7503 | ||
7117c2d2 JA |
7504 | /************************************************ |
7505 | * * | |
7506 | * EOF HANDLING * | |
7507 | * * | |
7508 | ************************************************/ | |
7509 | ||
f73dda09 JA |
7510 | /* Do that silly `type "bye" to exit' stuff. You know, "ignoreeof". */ |
7511 | ||
7512 | /* A flag denoting whether or not ignoreeof is set. */ | |
7513 | int ignoreeof = 0; | |
7514 | ||
7515 | /* The number of times that we have encountered an EOF character without | |
7516 | another character intervening. When this gets above the limit, the | |
7517 | shell terminates. */ | |
7518 | int eof_encountered = 0; | |
7519 | ||
7520 | /* The limit for eof_encountered. */ | |
7521 | int eof_encountered_limit = 10; | |
7522 | ||
7523 | /* If we have EOF as the only input unit, this user wants to leave | |
7524 | the shell. If the shell is not interactive, then just leave. | |
7525 | Otherwise, if ignoreeof is set, and we haven't done this the | |
7526 | required number of times in a row, print a message. */ | |
7527 | static void | |
7528 | handle_eof_input_unit () | |
28ef6c31 | 7529 | { |
f73dda09 JA |
7530 | if (interactive) |
7531 | { | |
7532 | /* shell.c may use this to decide whether or not to write out the | |
7533 | history, among other things. We use it only for error reporting | |
7534 | in this file. */ | |
7535 | if (EOF_Reached) | |
7536 | EOF_Reached = 0; | |
7537 | ||
7538 | /* If the user wants to "ignore" eof, then let her do so, kind of. */ | |
7539 | if (ignoreeof) | |
7540 | { | |
7541 | if (eof_encountered < eof_encountered_limit) | |
7542 | { | |
b80f6443 | 7543 | fprintf (stderr, _("Use \"%s\" to leave the shell.\n"), |
f73dda09 JA |
7544 | login_shell ? "logout" : "exit"); |
7545 | eof_encountered++; | |
7117c2d2 JA |
7546 | /* Reset the parsing state. */ |
7547 | last_read_token = current_token = '\n'; | |
f73dda09 JA |
7548 | /* Reset the prompt string to be $PS1. */ |
7549 | prompt_string_pointer = (char **)NULL; | |
7550 | prompt_again (); | |
f73dda09 JA |
7551 | return; |
7552 | } | |
7553 | } | |
7554 | ||
7555 | /* In this case EOF should exit the shell. Do it now. */ | |
7556 | reset_parser (); | |
7557 | exit_builtin ((WORD_LIST *)NULL); | |
726f6388 | 7558 | } |
f73dda09 | 7559 | else |
726f6388 | 7560 | { |
f73dda09 JA |
7561 | /* We don't write history files, etc., for non-interactive shells. */ |
7562 | EOF_Reached = 1; | |
7563 | } | |
7564 | } | |
7565 | ||
7117c2d2 JA |
7566 | /************************************************ |
7567 | * * | |
7568 | * STRING PARSING FUNCTIONS * | |
7569 | * * | |
7570 | ************************************************/ | |
7571 | ||
7572 | /* It's very important that these two functions treat the characters | |
7573 | between ( and ) identically. */ | |
7574 | ||
f73dda09 JA |
7575 | static WORD_LIST parse_string_error; |
7576 | ||
7577 | /* Take a string and run it through the shell parser, returning the | |
7578 | resultant word list. Used by compound array assignment. */ | |
7579 | WORD_LIST * | |
b80f6443 | 7580 | parse_string_to_word_list (s, flags, whom) |
f73dda09 | 7581 | char *s; |
b80f6443 | 7582 | int flags; |
f73dda09 JA |
7583 | const char *whom; |
7584 | { | |
7585 | WORD_LIST *wl; | |
7117c2d2 | 7586 | int tok, orig_current_token, orig_line_number, orig_input_terminator; |
f73dda09 | 7587 | int orig_line_count; |
7117c2d2 | 7588 | int old_echo_input, old_expand_aliases; |
f73dda09 JA |
7589 | #if defined (HISTORY) |
7590 | int old_remember_on_history, old_history_expansion_inhibited; | |
bb70624e | 7591 | #endif |
f73dda09 JA |
7592 | |
7593 | #if defined (HISTORY) | |
7594 | old_remember_on_history = remember_on_history; | |
7595 | # if defined (BANG_HISTORY) | |
7596 | old_history_expansion_inhibited = history_expansion_inhibited; | |
7597 | # endif | |
7598 | bash_history_disable (); | |
bb70624e | 7599 | #endif |
f73dda09 JA |
7600 | |
7601 | orig_line_number = line_number; | |
7602 | orig_line_count = current_command_line_count; | |
7603 | orig_input_terminator = shell_input_line_terminator; | |
7117c2d2 JA |
7604 | old_echo_input = echo_input_at_read; |
7605 | old_expand_aliases = expand_aliases; | |
f73dda09 JA |
7606 | |
7607 | push_stream (1); | |
7117c2d2 | 7608 | last_read_token = WORD; /* WORD to allow reserved words here */ |
f73dda09 | 7609 | current_command_line_count = 0; |
7117c2d2 | 7610 | echo_input_at_read = expand_aliases = 0; |
f73dda09 JA |
7611 | |
7612 | with_input_from_string (s, whom); | |
7613 | wl = (WORD_LIST *)NULL; | |
b80f6443 JA |
7614 | |
7615 | if (flags & 1) | |
3185942a | 7616 | parser_state |= PST_COMPASSIGN|PST_REPARSE; |
b80f6443 | 7617 | |
f73dda09 JA |
7618 | while ((tok = read_token (READ)) != yacc_EOF) |
7619 | { | |
7620 | if (tok == '\n' && *bash_input.location.string == '\0') | |
7621 | break; | |
7622 | if (tok == '\n') /* Allow newlines in compound assignments */ | |
7623 | continue; | |
7624 | if (tok != WORD && tok != ASSIGNMENT_WORD) | |
7625 | { | |
7626 | line_number = orig_line_number + line_number - 1; | |
7117c2d2 JA |
7627 | orig_current_token = current_token; |
7628 | current_token = tok; | |
95732b49 | 7629 | yyerror (NULL); /* does the right thing */ |
7117c2d2 | 7630 | current_token = orig_current_token; |
f73dda09 JA |
7631 | if (wl) |
7632 | dispose_words (wl); | |
7633 | wl = &parse_string_error; | |
7634 | break; | |
7635 | } | |
7636 | wl = make_word_list (yylval.word, wl); | |
bb70624e | 7637 | } |
f73dda09 JA |
7638 | |
7639 | last_read_token = '\n'; | |
7640 | pop_stream (); | |
7641 | ||
7642 | #if defined (HISTORY) | |
7643 | remember_on_history = old_remember_on_history; | |
7644 | # if defined (BANG_HISTORY) | |
7645 | history_expansion_inhibited = old_history_expansion_inhibited; | |
7646 | # endif /* BANG_HISTORY */ | |
7647 | #endif /* HISTORY */ | |
7648 | ||
7117c2d2 JA |
7649 | echo_input_at_read = old_echo_input; |
7650 | expand_aliases = old_expand_aliases; | |
7651 | ||
f73dda09 JA |
7652 | current_command_line_count = orig_line_count; |
7653 | shell_input_line_terminator = orig_input_terminator; | |
7654 | ||
b80f6443 | 7655 | if (flags & 1) |
3185942a | 7656 | parser_state &= ~(PST_COMPASSIGN|PST_REPARSE); |
b80f6443 | 7657 | |
f73dda09 | 7658 | if (wl == &parse_string_error) |
bb70624e | 7659 | { |
f73dda09 JA |
7660 | last_command_exit_value = EXECUTION_FAILURE; |
7661 | if (interactive_shell == 0 && posixly_correct) | |
7662 | jump_to_top_level (FORCE_EOF); | |
7663 | else | |
7664 | jump_to_top_level (DISCARD); | |
bb70624e | 7665 | } |
f73dda09 JA |
7666 | |
7667 | return (REVERSE_LIST (wl, WORD_LIST *)); | |
bb70624e | 7668 | } |
7117c2d2 JA |
7669 | |
7670 | static char * | |
7671 | parse_compound_assignment (retlenp) | |
7672 | int *retlenp; | |
7673 | { | |
7674 | WORD_LIST *wl, *rl; | |
0628567a | 7675 | int tok, orig_line_number, orig_token_size, orig_last_token, assignok; |
7117c2d2 JA |
7676 | char *saved_token, *ret; |
7677 | ||
7678 | saved_token = token; | |
7679 | orig_token_size = token_buffer_size; | |
7680 | orig_line_number = line_number; | |
0628567a | 7681 | orig_last_token = last_read_token; |
7117c2d2 JA |
7682 | |
7683 | last_read_token = WORD; /* WORD to allow reserved words here */ | |
7684 | ||
7685 | token = (char *)NULL; | |
7686 | token_buffer_size = 0; | |
7687 | ||
0628567a JA |
7688 | assignok = parser_state&PST_ASSIGNOK; /* XXX */ |
7689 | ||
7117c2d2 | 7690 | wl = (WORD_LIST *)NULL; /* ( */ |
b80f6443 JA |
7691 | parser_state |= PST_COMPASSIGN; |
7692 | ||
7117c2d2 JA |
7693 | while ((tok = read_token (READ)) != ')') |
7694 | { | |
7695 | if (tok == '\n') /* Allow newlines in compound assignments */ | |
b80f6443 JA |
7696 | { |
7697 | if (SHOULD_PROMPT ()) | |
7698 | prompt_again (); | |
7699 | continue; | |
7700 | } | |
7117c2d2 JA |
7701 | if (tok != WORD && tok != ASSIGNMENT_WORD) |
7702 | { | |
7703 | current_token = tok; /* for error reporting */ | |
7704 | if (tok == yacc_EOF) /* ( */ | |
b80f6443 | 7705 | parser_error (orig_line_number, _("unexpected EOF while looking for matching `)'")); |
7117c2d2 | 7706 | else |
95732b49 | 7707 | yyerror(NULL); /* does the right thing */ |
7117c2d2 JA |
7708 | if (wl) |
7709 | dispose_words (wl); | |
7710 | wl = &parse_string_error; | |
7711 | break; | |
7712 | } | |
7713 | wl = make_word_list (yylval.word, wl); | |
7714 | } | |
7715 | ||
7716 | FREE (token); | |
7717 | token = saved_token; | |
7718 | token_buffer_size = orig_token_size; | |
7719 | ||
b80f6443 JA |
7720 | parser_state &= ~PST_COMPASSIGN; |
7721 | ||
7117c2d2 JA |
7722 | if (wl == &parse_string_error) |
7723 | { | |
7724 | last_command_exit_value = EXECUTION_FAILURE; | |
7725 | last_read_token = '\n'; /* XXX */ | |
7726 | if (interactive_shell == 0 && posixly_correct) | |
7727 | jump_to_top_level (FORCE_EOF); | |
7728 | else | |
7729 | jump_to_top_level (DISCARD); | |
7730 | } | |
7731 | ||
0628567a JA |
7732 | last_read_token = orig_last_token; /* XXX - was WORD? */ |
7733 | ||
7117c2d2 JA |
7734 | if (wl) |
7735 | { | |
7736 | rl = REVERSE_LIST (wl, WORD_LIST *); | |
7737 | ret = string_list (rl); | |
7738 | dispose_words (rl); | |
7739 | } | |
7740 | else | |
7741 | ret = (char *)NULL; | |
7742 | ||
7743 | if (retlenp) | |
7744 | *retlenp = (ret && *ret) ? strlen (ret) : 0; | |
0628567a JA |
7745 | |
7746 | if (assignok) | |
7747 | parser_state |= PST_ASSIGNOK; | |
7748 | ||
7117c2d2 JA |
7749 | return ret; |
7750 | } | |
7751 | ||
b80f6443 JA |
7752 | /************************************************ |
7753 | * * | |
7754 | * SAVING AND RESTORING PARTIAL PARSE STATE * | |
7755 | * * | |
7756 | ************************************************/ | |
7757 | ||
7758 | sh_parser_state_t * | |
7759 | save_parser_state (ps) | |
7760 | sh_parser_state_t *ps; | |
7761 | { | |
7762 | #if defined (ARRAY_VARS) | |
7763 | SHELL_VAR *v; | |
7764 | #endif | |
7765 | ||
7766 | if (ps == 0) | |
95732b49 | 7767 | ps = (sh_parser_state_t *)xmalloc (sizeof (sh_parser_state_t)); |
b80f6443 JA |
7768 | if (ps == 0) |
7769 | return ((sh_parser_state_t *)NULL); | |
7770 | ||
7771 | ps->parser_state = parser_state; | |
7772 | ps->token_state = save_token_state (); | |
7773 | ||
7774 | ps->input_line_terminator = shell_input_line_terminator; | |
7775 | ps->eof_encountered = eof_encountered; | |
7776 | ||
7777 | ps->current_command_line_count = current_command_line_count; | |
7778 | ||
7779 | #if defined (HISTORY) | |
7780 | ps->remember_on_history = remember_on_history; | |
7781 | # if defined (BANG_HISTORY) | |
7782 | ps->history_expansion_inhibited = history_expansion_inhibited; | |
7783 | # endif | |
7784 | #endif | |
7785 | ||
7786 | ps->last_command_exit_value = last_command_exit_value; | |
7787 | #if defined (ARRAY_VARS) | |
7788 | v = find_variable ("PIPESTATUS"); | |
7789 | if (v && array_p (v) && array_cell (v)) | |
7790 | ps->pipestatus = array_copy (array_cell (v)); | |
7791 | else | |
7792 | ps->pipestatus = (ARRAY *)NULL; | |
7793 | #endif | |
7794 | ||
7795 | ps->last_shell_builtin = last_shell_builtin; | |
7796 | ps->this_shell_builtin = this_shell_builtin; | |
7797 | ||
7798 | ps->expand_aliases = expand_aliases; | |
7799 | ps->echo_input_at_read = echo_input_at_read; | |
7800 | ||
7801 | return (ps); | |
7802 | } | |
7803 | ||
7804 | void | |
7805 | restore_parser_state (ps) | |
7806 | sh_parser_state_t *ps; | |
7807 | { | |
7808 | #if defined (ARRAY_VARS) | |
7809 | SHELL_VAR *v; | |
7810 | #endif | |
7811 | ||
7812 | if (ps == 0) | |
7813 | return; | |
7814 | ||
7815 | parser_state = ps->parser_state; | |
7816 | if (ps->token_state) | |
7817 | { | |
7818 | restore_token_state (ps->token_state); | |
7819 | free (ps->token_state); | |
7820 | } | |
7821 | ||
7822 | shell_input_line_terminator = ps->input_line_terminator; | |
7823 | eof_encountered = ps->eof_encountered; | |
7824 | ||
7825 | current_command_line_count = ps->current_command_line_count; | |
7826 | ||
7827 | #if defined (HISTORY) | |
7828 | remember_on_history = ps->remember_on_history; | |
7829 | # if defined (BANG_HISTORY) | |
7830 | history_expansion_inhibited = ps->history_expansion_inhibited; | |
7831 | # endif | |
7832 | #endif | |
7833 | ||
7834 | last_command_exit_value = ps->last_command_exit_value; | |
7835 | #if defined (ARRAY_VARS) | |
7836 | v = find_variable ("PIPESTATUS"); | |
7837 | if (v && array_p (v) && array_cell (v)) | |
7838 | { | |
7839 | array_dispose (array_cell (v)); | |
7840 | var_setarray (v, ps->pipestatus); | |
7841 | } | |
7842 | #endif | |
7843 | ||
7844 | last_shell_builtin = ps->last_shell_builtin; | |
7845 | this_shell_builtin = ps->this_shell_builtin; | |
7846 | ||
7847 | expand_aliases = ps->expand_aliases; | |
7848 | echo_input_at_read = ps->echo_input_at_read; | |
7849 | } | |
7850 | ||
7117c2d2 JA |
7851 | /************************************************ |
7852 | * * | |
7853 | * MULTIBYTE CHARACTER HANDLING * | |
7854 | * * | |
7855 | ************************************************/ | |
7856 | ||
7857 | #if defined (HANDLE_MULTIBYTE) | |
7858 | static void | |
7859 | set_line_mbstate () | |
7860 | { | |
b80f6443 | 7861 | int i, previ, len, c; |
7117c2d2 JA |
7862 | mbstate_t mbs, prevs; |
7863 | size_t mbclen; | |
7864 | ||
7865 | if (shell_input_line == NULL) | |
7866 | return; | |
7867 | len = strlen (shell_input_line); /* XXX - shell_input_line_len ? */ | |
7868 | FREE (shell_input_line_property); | |
7869 | shell_input_line_property = (char *)xmalloc (len + 1); | |
7870 | ||
7871 | memset (&prevs, '\0', sizeof (mbstate_t)); | |
7872 | for (i = previ = 0; i < len; i++) | |
7873 | { | |
7874 | mbs = prevs; | |
7875 | ||
b80f6443 JA |
7876 | c = shell_input_line[i]; |
7877 | if (c == EOF) | |
7117c2d2 JA |
7878 | { |
7879 | int j; | |
7880 | for (j = i; j < len; j++) | |
7881 | shell_input_line_property[j] = 1; | |
7882 | break; | |
7883 | } | |
7884 | ||
7885 | mbclen = mbrlen (shell_input_line + previ, i - previ + 1, &mbs); | |
7886 | if (mbclen == 1 || mbclen == (size_t)-1) | |
7887 | { | |
7888 | mbclen = 1; | |
7889 | previ = i + 1; | |
7890 | } | |
7891 | else if (mbclen == (size_t)-2) | |
7892 | mbclen = 0; | |
7893 | else if (mbclen > 1) | |
7894 | { | |
7895 | mbclen = 0; | |
7896 | previ = i + 1; | |
7897 | prevs = mbs; | |
7898 | } | |
7899 | else | |
7900 | { | |
b80f6443 JA |
7901 | /* XXX - what to do if mbrlen returns 0? (null wide character) */ |
7902 | int j; | |
7903 | for (j = i; j < len; j++) | |
7904 | shell_input_line_property[j] = 1; | |
7905 | break; | |
7117c2d2 JA |
7906 | } |
7907 | ||
7908 | shell_input_line_property[i] = mbclen; | |
7909 | } | |
7910 | } | |
7911 | #endif /* HANDLE_MULTIBYTE */ | |
3185942a | 7912 |