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Bash-4.3 patch 39
[thirdparty/bash.git] / y.tab.c
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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,
495aee44
CR		 91 TIMEIGN = 280,
92 WORD = 281,
93 ASSIGNMENT_WORD = 282,
94 REDIR_WORD = 283,
95 NUMBER = 284,
96 ARITH_CMD = 285,
97 ARITH_FOR_EXPRS = 286,
98 COND_CMD = 287,
99 AND_AND = 288,
100 OR_OR = 289,
101 GREATER_GREATER = 290,
102 LESS_LESS = 291,
103 LESS_AND = 292,
104 LESS_LESS_LESS = 293,
105 GREATER_AND = 294,
106 SEMI_SEMI = 295,
107 SEMI_AND = 296,
108 SEMI_SEMI_AND = 297,
109 LESS_LESS_MINUS = 298,
110 AND_GREATER = 299,
111 AND_GREATER_GREATER = 300,
112 LESS_GREATER = 301,
113 GREATER_BAR = 302,
114 BAR_AND = 303,
115 yacc_EOF = 304
3185942a
JA		 116 };
117#endif
118/* Tokens. */
119#define IF 258
120#define THEN 259
121#define ELSE 260
122#define ELIF 261
123#define FI 262
124#define CASE 263
125#define ESAC 264
126#define FOR 265
127#define SELECT 266
128#define WHILE 267
129#define UNTIL 268
130#define DO 269
131#define DONE 270
132#define FUNCTION 271
133#define COPROC 272
134#define COND_START 273
135#define COND_END 274
136#define COND_ERROR 275
137#define IN 276
138#define BANG 277
139#define TIME 278
140#define TIMEOPT 279
495aee44
CR		 141#define TIMEIGN 280
142#define WORD 281
143#define ASSIGNMENT_WORD 282
144#define REDIR_WORD 283
145#define NUMBER 284
146#define ARITH_CMD 285
147#define ARITH_FOR_EXPRS 286
148#define COND_CMD 287
149#define AND_AND 288
150#define OR_OR 289
151#define GREATER_GREATER 290
152#define LESS_LESS 291
153#define LESS_AND 292
154#define LESS_LESS_LESS 293
155#define GREATER_AND 294
156#define SEMI_SEMI 295
157#define SEMI_AND 296
158#define SEMI_SEMI_AND 297
159#define LESS_LESS_MINUS 298
160#define AND_GREATER 299
161#define AND_GREATER_GREATER 300
162#define LESS_GREATER 301
163#define GREATER_BAR 302
164#define BAR_AND 303
165#define yacc_EOF 304
3185942a
JA		 166
167
168
169
170/* Copy the first part of user declarations. */
ca6a2ba4 171#line 21 "/usr/src/local/bash/bash-4.3-patched/parse.y"
f73dda09 172
ccc6cda3
JA		 173#include "config.h"
174
726f6388 175#include "bashtypes.h"
726f6388 176#include "bashansi.h"
ccc6cda3 177
28ef6c31
JA		 178#include "filecntl.h"
179
ccc6cda3
JA		 180#if defined (HAVE_UNISTD_H)
181# include <unistd.h>
182#endif
183
184#if defined (HAVE_LOCALE_H)
185# include <locale.h>
186#endif
187
188#include <stdio.h>
f73dda09 189#include "chartypes.h"
ccc6cda3
JA		 190#include <signal.h>
191
192#include "memalloc.h"
193
b80f6443
JA		 194#include "bashintl.h"
195
7117c2d2
JA		 196#define NEED_STRFTIME_DECL /* used in externs.h */
197
726f6388 198#include "shell.h"
ac50fbac 199#include "typemax.h" /* SIZE_MAX if needed */
ccc6cda3 200#include "trap.h"
726f6388 201#include "flags.h"
ccc6cda3
JA		 202#include "parser.h"
203#include "mailcheck.h"
f73dda09 204#include "test.h"
95732b49 205#include "builtins.h"
ccc6cda3
JA		 206#include "builtins/common.h"
207#include "builtins/builtext.h"
726f6388 208
7117c2d2
JA		 209#include "shmbutil.h"
210
726f6388 211#if defined (READLINE)
ccc6cda3 212# include "bashline.h"
726f6388
JA		 213# include <readline/readline.h>
214#endif /* READLINE */
215
216#if defined (HISTORY)
217# include "bashhist.h"
218# include <readline/history.h>
219#endif /* HISTORY */
220
221#if defined (JOB_CONTROL)
222# include "jobs.h"
223#endif /* JOB_CONTROL */
224
225#if defined (ALIAS)
226# include "alias.h"
b80f6443
JA		 227#else
228typedef void *alias_t;
726f6388
JA		 229#endif /* ALIAS */
230
231#if defined (PROMPT_STRING_DECODE)
cce855bc
JA		 232# ifndef _MINIX
233# include <sys/param.h>
234# endif
235# include <time.h>
7117c2d2
JA		 236# if defined (TM_IN_SYS_TIME)
237# include <sys/types.h>
238# include <sys/time.h>
239# endif /* TM_IN_SYS_TIME */
cce855bc 240# include "maxpath.h"
726f6388
JA		 241#endif /* PROMPT_STRING_DECODE */
242
ccc6cda3
JA		 243#define RE_READ_TOKEN -99
244#define NO_EXPANSION -100
245
7117c2d2
JA		 246#ifdef DEBUG
247# define YYDEBUG 1
248#else
249# define YYDEBUG 0
250#endif
251
252#if defined (HANDLE_MULTIBYTE)
253# define last_shell_getc_is_singlebyte \
254 ((shell_input_line_index > 1) \
255 ? shell_input_line_property[shell_input_line_index - 1] \
256 : 1)
257# define MBTEST(x) ((x) && last_shell_getc_is_singlebyte)
258#else
259# define last_shell_getc_is_singlebyte 1
260# define MBTEST(x) ((x))
261#endif
ccc6cda3 262
cce855bc 263#if defined (EXTENDED_GLOB)
cce855bc
JA		 264extern int extended_glob;
265#endif
266
726f6388 267extern int eof_encountered;
ccc6cda3 268extern int no_line_editing, running_under_emacs;
726f6388 269extern int current_command_number;
3185942a 270extern int sourcelevel, parse_and_execute_level;
726f6388
JA		 271extern int posixly_correct;
272extern int last_command_exit_value;
0001803f 273extern pid_t last_command_subst_pid;
726f6388 274extern char *shell_name, *current_host_name;
ccc6cda3
JA		 275extern char *dist_version;
276extern int patch_level;
cce855bc 277extern int dump_translatable_strings, dump_po_strings;
f73dda09 278extern sh_builtin_func_t *last_shell_builtin, *this_shell_builtin;
726f6388
JA		 279#if defined (BUFFERED_INPUT)
280extern int bash_input_fd_changed;
281#endif
282
bb70624e 283extern int errno;
726f6388
JA		 284/* **************************************************************** */
285/* */
286/* "Forward" declarations */
287/* */
288/* **************************************************************** */
289
f73dda09
JA		 290#ifdef DEBUG
291static void debug_parser __P((int));
292#endif
293
294static int yy_getc __P((void));
295static int yy_ungetc __P((int));
296
297#if defined (READLINE)
298static int yy_readline_get __P((void));
299static int yy_readline_unget __P((int));
300#endif
301
302static int yy_string_get __P((void));
303static int yy_string_unget __P((int));
3185942a 304static void rewind_input_string __P((void));
f73dda09
JA		 305static int yy_stream_get __P((void));
306static int yy_stream_unget __P((int));
307
308static int shell_getc __P((int));
309static void shell_ungetc __P((int));
310static void discard_until __P((int));
311
312#if defined (ALIAS) || defined (DPAREN_ARITHMETIC)
313static void push_string __P((char *, int, alias_t *));
314static void pop_string __P((void));
315static void free_string_list __P((void));
316#endif
317
318static char *read_a_line __P((int));
319
f73dda09
JA		 320static int reserved_word_acceptable __P((int));
321static int yylex __P((void));
90a39f32
CR		 322
323static void push_heredoc __P((REDIRECT *));
324static char *mk_alexpansion __P((char *));
f73dda09
JA		 325static int alias_expand_token __P((char *));
326static int time_command_acceptable __P((void));
327static int special_case_tokens __P((char *));
328static int read_token __P((int));
329static char *parse_matched_pair __P((int, int, int, int *, int));
3185942a 330static char *parse_comsub __P((int, int, int, int *, int));
7117c2d2
JA		 331#if defined (ARRAY_VARS)
332static char *parse_compound_assignment __P((int *));
333#endif
f73dda09 334#if defined (DPAREN_ARITHMETIC) || defined (ARITH_FOR_COMMAND)
7117c2d2 335static int parse_dparen __P((int));
b80f6443 336static int parse_arith_cmd __P((char **, int));
f73dda09 337#endif
cce855bc 338#if defined (COND_COMMAND)
7117c2d2 339static void cond_error __P((void));
f73dda09
JA		 340static COND_COM *cond_expr __P((void));
341static COND_COM *cond_or __P((void));
342static COND_COM *cond_and __P((void));
343static COND_COM *cond_term __P((void));
344static int cond_skip_newlines __P((void));
345static COMMAND *parse_cond_command __P((void));
cce855bc 346#endif
7117c2d2
JA		 347#if defined (ARRAY_VARS)
348static int token_is_assignment __P((char *, int));
349static int token_is_ident __P((char *, int));
350#endif
f73dda09
JA		 351static int read_token_word __P((int));
352static void discard_parser_constructs __P((int));
726f6388 353
7117c2d2
JA		 354static char *error_token_from_token __P((int));
355static char *error_token_from_text __P((void));
356static void print_offending_line __P((void));
f73dda09 357static void report_syntax_error __P((char *));
7117c2d2 358
f73dda09
JA		 359static void handle_eof_input_unit __P((void));
360static void prompt_again __P((void));
d166f048 361#if 0
f73dda09 362static void reset_readline_prompt __P((void));
d166f048 363#endif
f73dda09 364static void print_prompt __P((void));
726f6388 365
7117c2d2
JA		 366#if defined (HANDLE_MULTIBYTE)
367static void set_line_mbstate __P((void));
368static char *shell_input_line_property = NULL;
369#else
370# define set_line_mbstate()
371#endif
372
f73dda09 373extern int yyerror __P((const char *));
d166f048 374
7117c2d2
JA		 375#ifdef DEBUG
376extern int yydebug;
377#endif
378
ccc6cda3
JA		 379/* Default prompt strings */
380char *primary_prompt = PPROMPT;
381char *secondary_prompt = SPROMPT;
382
726f6388
JA		 383/* PROMPT_STRING_POINTER points to one of these, never to an actual string. */
384char *ps1_prompt, *ps2_prompt;
385
386/* Handle on the current prompt string. Indirectly points through
387 ps1_ or ps2_prompt. */
388char **prompt_string_pointer = (char **)NULL;
389char *current_prompt_string;
390
ccc6cda3
JA		 391/* Non-zero means we expand aliases in commands. */
392int expand_aliases = 0;
393
394/* If non-zero, the decoded prompt string undergoes parameter and
395 variable substitution, command substitution, arithmetic substitution,
396 string expansion, process substitution, and quote removal in
397 decode_prompt_string. */
398int promptvars = 1;
399
b80f6443
JA		 400/* If non-zero, $'...' and $"..." are expanded when they appear within
401 a ${...} expansion, even when the expansion appears within double
402 quotes. */
403int extended_quote = 1;
404
726f6388 405/* The number of lines read from input while creating the current command. */
ccc6cda3 406int current_command_line_count;
726f6388 407
495aee44
CR		 408/* The number of lines in a command saved while we run parse_and_execute */
409int saved_command_line_count;
410
3185942a
JA		 411/* The token that currently denotes the end of parse. */
412int shell_eof_token;
413
414/* The token currently being read. */
415int current_token;
416
0001803f
CR		 417/* The current parser state. */
418int parser_state;
419
726f6388
JA		 420/* Variables to manage the task of reading here documents, because we need to
421 defer the reading until after a complete command has been collected. */
90a39f32
CR		 422#define HEREDOC_MAX 16
423
424static REDIRECT *redir_stack[HEREDOC_MAX];
ccc6cda3 425int need_here_doc;
726f6388
JA		 426
427/* Where shell input comes from. History expansion is performed on each
428 line when the shell is interactive. */
429static char *shell_input_line = (char *)NULL;
ac50fbac
CR		 430static size_t shell_input_line_index;
431static size_t shell_input_line_size; /* Amount allocated for shell_input_line. */
432static size_t shell_input_line_len; /* strlen (shell_input_line) */
726f6388
JA		 433
434/* Either zero or EOF. */
ccc6cda3
JA		 435static int shell_input_line_terminator;
436
437/* The line number in a script on which a function definition starts. */
438static int function_dstart;
439
440/* The line number in a script on which a function body starts. */
441static int function_bstart;
726f6388 442
bb70624e
JA		 443/* The line number in a script at which an arithmetic for command starts. */
444static int arith_for_lineno;
445
0001803f
CR		 446/* The decoded prompt string. Used if READLINE is not defined or if
447 editing is turned off. Analogous to current_readline_prompt. */
448static char *current_decoded_prompt;
3185942a
JA		 449
450/* The last read token, or NULL. read_token () uses this for context
451 checking. */
452static int last_read_token;
453
454/* The token read prior to last_read_token. */
455static int token_before_that;
456
457/* The token read prior to token_before_that. */
458static int two_tokens_ago;
459
0001803f
CR		 460static int global_extglob;
461
b80f6443
JA		 462/* The line number in a script where the word in a `case WORD', `select WORD'
463 or `for WORD' begins. This is a nested command maximum, since the array
464 index is decremented after a case, select, or for command is parsed. */
465#define MAX_CASE_NEST 128
90a39f32 466static int word_lineno[MAX_CASE_NEST+1];
b80f6443
JA		 467static int word_top = -1;
468
469/* If non-zero, it is the token that we want read_token to return
470 regardless of what text is (or isn't) present to be read. This
471 is reset by read_token. If token_to_read == WORD or
472 ASSIGNMENT_WORD, yylval.word should be set to word_desc_to_read. */
473static int token_to_read;
474static WORD_DESC *word_desc_to_read;
475
0001803f 476static REDIRECTEE source;
726f6388 477static REDIRECTEE redir;
f73dda09 478
3185942a
JA		 479
480/* Enabling traces. */
481#ifndef YYDEBUG
482# define YYDEBUG 0
483#endif
484
485/* Enabling verbose error messages. */
486#ifdef YYERROR_VERBOSE
487# undef YYERROR_VERBOSE
488# define YYERROR_VERBOSE 1
489#else
490# define YYERROR_VERBOSE 0
491#endif
492
493/* Enabling the token table. */
494#ifndef YYTOKEN_TABLE
495# define YYTOKEN_TABLE 0
496#endif
497
498#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
499typedef union YYSTYPE
ca6a2ba4 500#line 329 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 501{
726f6388
JA		 502 WORD_DESC *word; /* the word that we read. */
503 int number; /* the number that we read. */
504 WORD_LIST *word_list;
505 COMMAND *command;
506 REDIRECT *redirect;
507 ELEMENT element;
508 PATTERN_LIST *pattern;
3185942a 509}
509a4430 510/* Line 193 of yacc.c. */
90a39f32 511#line 512 "y.tab.c"
3185942a
JA		 512 YYSTYPE;
513# define yystype YYSTYPE /* obsolescent; will be withdrawn */
514# define YYSTYPE_IS_DECLARED 1
515# define YYSTYPE_IS_TRIVIAL 1
516#endif
517
518
519
520/* Copy the second part of user declarations. */
521
522
523/* Line 216 of yacc.c. */
90a39f32 524#line 525 "y.tab.c"
b80f6443 525
3185942a
JA		 526#ifdef short
527# undef short
f73dda09 528#endif
3185942a
JA		 529
530#ifdef YYTYPE_UINT8
531typedef YYTYPE_UINT8 yytype_uint8;
532#else
533typedef unsigned char yytype_uint8;
f73dda09
JA		 534#endif
535
3185942a
JA		 536#ifdef YYTYPE_INT8
537typedef YYTYPE_INT8 yytype_int8;
538#elif (defined __STDC__ || defined __C99__FUNC__ \
539 || defined __cplusplus || defined _MSC_VER)
540typedef signed char yytype_int8;
541#else
542typedef short int yytype_int8;
543#endif
f73dda09 544
3185942a
JA		 545#ifdef YYTYPE_UINT16
546typedef YYTYPE_UINT16 yytype_uint16;
547#else
548typedef unsigned short int yytype_uint16;
549#endif
f73dda09 550
3185942a
JA		 551#ifdef YYTYPE_INT16
552typedef YYTYPE_INT16 yytype_int16;
553#else
554typedef short int yytype_int16;
555#endif
f73dda09 556
3185942a
JA		 557#ifndef YYSIZE_T
558# ifdef __SIZE_TYPE__
559# define YYSIZE_T __SIZE_TYPE__
560# elif defined size_t
561# define YYSIZE_T size_t
562# elif ! defined YYSIZE_T && (defined __STDC__ || defined __C99__FUNC__ \
563 || defined __cplusplus || defined _MSC_VER)
564# include <stddef.h> /* INFRINGES ON USER NAME SPACE */
565# define YYSIZE_T size_t
566# else
567# define YYSIZE_T unsigned int
568# endif
569#endif
b80f6443 570
3185942a 571#define YYSIZE_MAXIMUM ((YYSIZE_T) -1)
f73dda09 572
3185942a 573#ifndef YY_
509a4430 574# if defined YYENABLE_NLS && YYENABLE_NLS
3185942a
JA		 575# if ENABLE_NLS
576# include <libintl.h> /* INFRINGES ON USER NAME SPACE */
577# define YY_(msgid) dgettext ("bison-runtime", msgid)
578# endif
579# endif
580# ifndef YY_
581# define YY_(msgid) msgid
582# endif
f73dda09
JA		 583#endif
584
3185942a
JA		 585/* Suppress unused-variable warnings by "using" E. */
586#if ! defined lint || defined __GNUC__
587# define YYUSE(e) ((void) (e))
588#else
589# define YYUSE(e) /* empty */
f73dda09
JA		 590#endif
591
3185942a
JA		 592/* Identity function, used to suppress warnings about constant conditions. */
593#ifndef lint
594# define YYID(n) (n)
595#else
596#if (defined __STDC__ || defined __C99__FUNC__ \
597 || defined __cplusplus || defined _MSC_VER)
598static int
599YYID (int i)
600#else
601static int
602YYID (i)
603 int i;
604#endif
605{
606 return i;
607}
608#endif
609
610#if ! defined yyoverflow || YYERROR_VERBOSE
611
612/* The parser invokes alloca or malloc; define the necessary symbols. */
613
614# ifdef YYSTACK_USE_ALLOCA
615# if YYSTACK_USE_ALLOCA
616# ifdef __GNUC__
617# define YYSTACK_ALLOC __builtin_alloca
618# elif defined __BUILTIN_VA_ARG_INCR
619# include <alloca.h> /* INFRINGES ON USER NAME SPACE */
620# elif defined _AIX
621# define YYSTACK_ALLOC __alloca
622# elif defined _MSC_VER
623# include <malloc.h> /* INFRINGES ON USER NAME SPACE */
624# define alloca _alloca
625# else
626# define YYSTACK_ALLOC alloca
627# if ! defined _ALLOCA_H && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
628 || defined __cplusplus || defined _MSC_VER)
629# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
630# ifndef _STDLIB_H
631# define _STDLIB_H 1
632# endif
633# endif
634# endif
635# endif
636# endif
637
638# ifdef YYSTACK_ALLOC
639 /* Pacify GCC's `empty if-body' warning. */
640# define YYSTACK_FREE(Ptr) do { /* empty */; } while (YYID (0))
641# ifndef YYSTACK_ALLOC_MAXIMUM
642 /* The OS might guarantee only one guard page at the bottom of the stack,
643 and a page size can be as small as 4096 bytes. So we cannot safely
644 invoke alloca (N) if N exceeds 4096. Use a slightly smaller number
645 to allow for a few compiler-allocated temporary stack slots. */
646# define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */
647# endif
648# else
649# define YYSTACK_ALLOC YYMALLOC
650# define YYSTACK_FREE YYFREE
651# ifndef YYSTACK_ALLOC_MAXIMUM
652# define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
653# endif
654# if (defined __cplusplus && ! defined _STDLIB_H \
655 && ! ((defined YYMALLOC || defined malloc) \
656 && (defined YYFREE || defined free)))
657# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
658# ifndef _STDLIB_H
659# define _STDLIB_H 1
660# endif
661# endif
662# ifndef YYMALLOC
663# define YYMALLOC malloc
664# if ! defined malloc && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
665 || defined __cplusplus || defined _MSC_VER)
666void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
667# endif
668# endif
669# ifndef YYFREE
670# define YYFREE free
671# if ! defined free && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
672 || defined __cplusplus || defined _MSC_VER)
673void free (void *); /* INFRINGES ON USER NAME SPACE */
674# endif
675# endif
676# endif
677#endif /* ! defined yyoverflow || YYERROR_VERBOSE */
678
679
680#if (! defined yyoverflow \
681 && (! defined __cplusplus \
682 || (defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL)))
683
684/* A type that is properly aligned for any stack member. */
685union yyalloc
686{
687 yytype_int16 yyss;
688 YYSTYPE yyvs;
689 };
690
691/* The size of the maximum gap between one aligned stack and the next. */
692# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)
693
694/* The size of an array large to enough to hold all stacks, each with
695 N elements. */
696# define YYSTACK_BYTES(N) \
697 ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE)) \
698 + YYSTACK_GAP_MAXIMUM)
699
700/* Copy COUNT objects from FROM to TO. The source and destination do
701 not overlap. */
702# ifndef YYCOPY
703# if defined __GNUC__ && 1 < __GNUC__
704# define YYCOPY(To, From, Count) \
705 __builtin_memcpy (To, From, (Count) * sizeof (*(From)))
706# else
707# define YYCOPY(To, From, Count) \
708 do \
709 { \
710 YYSIZE_T yyi; \
711 for (yyi = 0; yyi < (Count); yyi++) \
712 (To)[yyi] = (From)[yyi]; \
713 } \
714 while (YYID (0))
715# endif
716# endif
717
718/* Relocate STACK from its old location to the new one. The
719 local variables YYSIZE and YYSTACKSIZE give the old and new number of
720 elements in the stack, and YYPTR gives the new location of the
721 stack. Advance YYPTR to a properly aligned location for the next
722 stack. */
723# define YYSTACK_RELOCATE(Stack) \
724 do \
725 { \
726 YYSIZE_T yynewbytes; \
727 YYCOPY (&yyptr->Stack, Stack, yysize); \
728 Stack = &yyptr->Stack; \
729 yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
730 yyptr += yynewbytes / sizeof (*yyptr); \
731 } \
732 while (YYID (0))
f73dda09 733
f73dda09
JA		 734#endif
735
3185942a 736/* YYFINAL -- State number of the termination state. */
495aee44 737#define YYFINAL 116
3185942a 738/* YYLAST -- Last index in YYTABLE. */
495aee44 739#define YYLAST 659
3185942a
JA		 740
741/* YYNTOKENS -- Number of terminals. */
495aee44 742#define YYNTOKENS 61
3185942a
JA		 743/* YYNNTS -- Number of nonterminals. */
744#define YYNNTS 38
745/* YYNRULES -- Number of rules. */
0001803f 746#define YYNRULES 167
3185942a 747/* YYNRULES -- Number of states. */
495aee44 748#define YYNSTATES 342
3185942a
JA		 749
750/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */
751#define YYUNDEFTOK 2
495aee44 752#define YYMAXUTOK 304
3185942a
JA		 753
754#define YYTRANSLATE(YYX) \
755 ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
756
757/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX. */
758static const yytype_uint8 yytranslate[] =
759{
760 0, 2, 2, 2, 2, 2, 2, 2, 2, 2,
495aee44 761 51, 2, 2, 2, 2, 2, 2, 2, 2, 2,
3185942a 762 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
495aee44
CR		 763 2, 2, 2, 2, 2, 2, 2, 2, 49, 2,
764 59, 60, 2, 2, 2, 56, 2, 2, 2, 2,
765 2, 2, 2, 2, 2, 2, 2, 2, 2, 50,
766 55, 2, 54, 2, 2, 2, 2, 2, 2, 2,
3185942a
JA		 767 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
768 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
769 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
770 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
771 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
495aee44 772 2, 2, 2, 57, 53, 58, 2, 2, 2, 2,
3185942a
JA		 773 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
774 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
775 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
776 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
777 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
778 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
779 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
780 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
781 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
782 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
783 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
784 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
785 2, 2, 2, 2, 2, 2, 1, 2, 3, 4,
786 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
787 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
788 25, 26, 27, 28, 29, 30, 31, 32, 33, 34,
789 35, 36, 37, 38, 39, 40, 41, 42, 43, 44,
495aee44 790 45, 46, 47, 48, 52
726f6388 791};
f73dda09 792
3185942a
JA		 793#if YYDEBUG
794/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
795 YYRHS. */
796static const yytype_uint16 yyprhs[] =
797{
798 0, 0, 3, 6, 8, 11, 13, 15, 18, 21,
0001803f
CR		 799 24, 28, 32, 36, 40, 43, 47, 51, 54, 58,
800 62, 65, 69, 73, 76, 80, 84, 87, 91, 95,
801 98, 102, 106, 109, 113, 117, 120, 124, 128, 131,
802 135, 139, 142, 146, 150, 153, 157, 161, 164, 168,
803 172, 175, 178, 180, 182, 184, 186, 189, 191, 194,
804 196, 198, 201, 203, 205, 207, 209, 215, 221, 223,
805 225, 227, 229, 231, 233, 235, 242, 249, 257, 265,
806 276, 287, 297, 307, 315, 323, 329, 335, 342, 349,
807 357, 365, 376, 387, 394, 402, 409, 415, 422, 427,
808 429, 432, 436, 439, 443, 447, 452, 455, 461, 469,
809 476, 480, 482, 486, 491, 498, 504, 506, 509, 514,
810 519, 525, 531, 534, 538, 541, 545, 548, 552, 554,
811 558, 561, 563, 566, 570, 574, 578, 583, 588, 593,
812 598, 603, 605, 607, 609, 611, 613, 615, 616, 619,
813 621, 624, 627, 632, 637, 641, 645, 647, 649, 652,
495aee44 814 655, 658, 661, 666, 671, 673, 675, 678
726f6388 815};
f73dda09 816
3185942a
JA		 817/* YYRHS -- A `-1'-separated list of the rules' RHS. */
818static const yytype_int8 yyrhs[] =
819{
495aee44
CR		 820 62, 0, -1, 94, 91, -1, 51, -1, 1, 51,
821 -1, 52, -1, 26, -1, 63, 26, -1, 54, 26,
822 -1, 55, 26, -1, 29, 54, 26, -1, 29, 55,
823 26, -1, 28, 54, 26, -1, 28, 55, 26, -1,
824 35, 26, -1, 29, 35, 26, -1, 28, 35, 26,
825 -1, 47, 26, -1, 29, 47, 26, -1, 28, 47,
826 26, -1, 46, 26, -1, 29, 46, 26, -1, 28,
827 46, 26, -1, 36, 26, -1, 29, 36, 26, -1,
828 28, 36, 26, -1, 43, 26, -1, 29, 43, 26,
829 -1, 28, 43, 26, -1, 38, 26, -1, 29, 38,
830 26, -1, 28, 38, 26, -1, 37, 29, -1, 29,
831 37, 29, -1, 28, 37, 29, -1, 39, 29, -1,
832 29, 39, 29, -1, 28, 39, 29, -1, 37, 26,
833 -1, 29, 37, 26, -1, 28, 37, 26, -1, 39,
834 26, -1, 29, 39, 26, -1, 28, 39, 26, -1,
835 39, 56, -1, 29, 39, 56, -1, 28, 39, 56,
836 -1, 37, 56, -1, 29, 37, 56, -1, 28, 37,
837 56, -1, 44, 26, -1, 45, 26, -1, 26, -1,
838 27, -1, 64, -1, 64, -1, 66, 64, -1, 65,
839 -1, 67, 65, -1, 67, -1, 69, -1, 69, 66,
840 -1, 74, -1, 77, -1, 70, -1, 73, -1, 12,
841 88, 14, 88, 15, -1, 13, 88, 14, 88, 15,
842 -1, 72, -1, 78, -1, 76, -1, 79, -1, 80,
843 -1, 81, -1, 71, -1, 10, 26, 93, 14, 88,
844 15, -1, 10, 26, 93, 57, 88, 58, -1, 10,
845 26, 50, 93, 14, 88, 15, -1, 10, 26, 50,
846 93, 57, 88, 58, -1, 10, 26, 93, 21, 63,
847 92, 93, 14, 88, 15, -1, 10, 26, 93, 21,
848 63, 92, 93, 57, 88, 58, -1, 10, 26, 93,
849 21, 92, 93, 14, 88, 15, -1, 10, 26, 93,
850 21, 92, 93, 57, 88, 58, -1, 10, 31, 92,
851 93, 14, 88, 15, -1, 10, 31, 92, 93, 57,
852 88, 58, -1, 10, 31, 14, 88, 15, -1, 10,
853 31, 57, 88, 58, -1, 11, 26, 93, 14, 87,
854 15, -1, 11, 26, 93, 57, 87, 58, -1, 11,
855 26, 50, 93, 14, 87, 15, -1, 11, 26, 50,
856 93, 57, 87, 58, -1, 11, 26, 93, 21, 63,
857 92, 93, 14, 87, 15, -1, 11, 26, 93, 21,
858 63, 92, 93, 57, 87, 58, -1, 8, 26, 93,
859 21, 93, 9, -1, 8, 26, 93, 21, 85, 93,
860 9, -1, 8, 26, 93, 21, 83, 9, -1, 26,
861 59, 60, 93, 75, -1, 16, 26, 59, 60, 93,
862 75, -1, 16, 26, 93, 75, -1, 69, -1, 69,
863 66, -1, 59, 88, 60, -1, 17, 69, -1, 17,
864 69, 66, -1, 17, 26, 69, -1, 17, 26, 69,
865 66, -1, 17, 67, -1, 3, 88, 4, 88, 7,
866 -1, 3, 88, 4, 88, 5, 88, 7, -1, 3,
867 88, 4, 88, 82, 7, -1, 57, 88, 58, -1,
868 30, -1, 18, 32, 19, -1, 6, 88, 4, 88,
869 -1, 6, 88, 4, 88, 5, 88, -1, 6, 88,
870 4, 88, 82, -1, 84, -1, 85, 84, -1, 93,
871 86, 60, 88, -1, 93, 86, 60, 93, -1, 93,
872 59, 86, 60, 88, -1, 93, 59, 86, 60, 93,
873 -1, 84, 40, -1, 85, 84, 40, -1, 84, 41,
874 -1, 85, 84, 41, -1, 84, 42, -1, 85, 84,
875 42, -1, 26, -1, 86, 53, 26, -1, 93, 89,
876 -1, 87, -1, 93, 90, -1, 90, 51, 93, -1,
877 90, 49, 93, -1, 90, 50, 93, -1, 90, 33,
878 93, 90, -1, 90, 34, 93, 90, -1, 90, 49,
879 93, 90, -1, 90, 50, 93, 90, -1, 90, 51,
880 93, 90, -1, 96, -1, 51, -1, 52, -1, 51,
881 -1, 50, -1, 52, -1, -1, 93, 51, -1, 95,
882 -1, 95, 49, -1, 95, 50, -1, 95, 33, 93,
883 95, -1, 95, 34, 93, 95, -1, 95, 49, 95,
884 -1, 95, 50, 95, -1, 96, -1, 97, -1, 22,
885 96, -1, 98, 96, -1, 98, 92, -1, 22, 92,
886 -1, 97, 53, 93, 97, -1, 97, 48, 93, 97,
887 -1, 68, -1, 23, -1, 23, 24, -1, 23, 24,
888 25, -1
726f6388 889};
f73dda09 890
3185942a
JA		 891/* YYRLINE[YYN] -- source line where rule number YYN was defined. */
892static const yytype_uint16 yyrline[] =
893{
90a39f32
CR		 894 0, 382, 382, 393, 402, 417, 427, 429, 433, 439,
895 445, 451, 457, 463, 469, 475, 481, 487, 493, 499,
896 505, 511, 517, 523, 530, 537, 544, 551, 558, 565,
897 571, 577, 583, 589, 595, 601, 607, 613, 619, 625,
898 631, 637, 643, 649, 655, 661, 667, 673, 679, 685,
899 691, 697, 705, 707, 709, 713, 717, 728, 730, 734,
900 736, 738, 754, 756, 760, 762, 764, 766, 768, 770,
901 772, 774, 776, 778, 780, 784, 789, 794, 799, 804,
902 809, 814, 819, 826, 831, 836, 841, 848, 853, 858,
903 863, 868, 873, 880, 885, 890, 897, 900, 903, 907,
904 909, 940, 947, 952, 969, 974, 991, 998, 1000, 1002,
905 1007, 1011, 1015, 1019, 1021, 1023, 1027, 1028, 1032, 1034,
906 1036, 1038, 1042, 1044, 1046, 1048, 1050, 1052, 1056, 1058,
907 1067, 1075, 1076, 1082, 1083, 1090, 1094, 1096, 1098, 1105,
908 1107, 1109, 1113, 1114, 1117, 1119, 1121, 1125, 1126, 1135,
909 1148, 1164, 1179, 1181, 1183, 1190, 1193, 1197, 1199, 1205,
910 1211, 1228, 1248, 1250, 1273, 1277, 1279, 1281
726f6388 911};
3185942a 912#endif
f73dda09 913
3185942a
JA		 914#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
915/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
916 First, the terminals, then, starting at YYNTOKENS, nonterminals. */
917static const char *const yytname[] =
918{
919 "$end", "error", "$undefined", "IF", "THEN", "ELSE", "ELIF", "FI",
920 "CASE", "ESAC", "FOR", "SELECT", "WHILE", "UNTIL", "DO", "DONE",
921 "FUNCTION", "COPROC", "COND_START", "COND_END", "COND_ERROR", "IN",
495aee44
CR		 922 "BANG", "TIME", "TIMEOPT", "TIMEIGN", "WORD", "ASSIGNMENT_WORD",
923 "REDIR_WORD", "NUMBER", "ARITH_CMD", "ARITH_FOR_EXPRS", "COND_CMD",
924 "AND_AND", "OR_OR", "GREATER_GREATER", "LESS_LESS", "LESS_AND",
925 "LESS_LESS_LESS", "GREATER_AND", "SEMI_SEMI", "SEMI_AND",
926 "SEMI_SEMI_AND", "LESS_LESS_MINUS", "AND_GREATER", "AND_GREATER_GREATER",
927 "LESS_GREATER", "GREATER_BAR", "BAR_AND", "'&'", "';'", "'\\n'",
928 "yacc_EOF", "'|'", "'>'", "'<'", "'-'", "'{'", "'}'", "'('", "')'",
929 "$accept", "inputunit", "word_list", "redirection",
930 "simple_command_element", "redirection_list", "simple_command",
931 "command", "shell_command", "for_command", "arith_for_command",
932 "select_command", "case_command", "function_def", "function_body",
933 "subshell", "coproc", "if_command", "group_command", "arith_command",
934 "cond_command", "elif_clause", "case_clause", "pattern_list",
935 "case_clause_sequence", "pattern", "list", "compound_list", "list0",
936 "list1", "simple_list_terminator", "list_terminator", "newline_list",
937 "simple_list", "simple_list1", "pipeline_command", "pipeline",
938 "timespec", 0
726f6388 939};
3185942a 940#endif
f73dda09 941
3185942a
JA		 942# ifdef YYPRINT
943/* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to
944 token YYLEX-NUM. */
945static const yytype_uint16 yytoknum[] =
946{
947 0, 256, 257, 258, 259, 260, 261, 262, 263, 264,
948 265, 266, 267, 268, 269, 270, 271, 272, 273, 274,
949 275, 276, 277, 278, 279, 280, 281, 282, 283, 284,
950 285, 286, 287, 288, 289, 290, 291, 292, 293, 294,
495aee44
CR		 951 295, 296, 297, 298, 299, 300, 301, 302, 303, 38,
952 59, 10, 304, 124, 62, 60, 45, 123, 125, 40,
953 41
3185942a
JA		 954};
955# endif
956
957/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */
958static const yytype_uint8 yyr1[] =
959{
495aee44
CR		 960 0, 61, 62, 62, 62, 62, 63, 63, 64, 64,
961 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
962 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
963 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
964 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
965 64, 64, 65, 65, 65, 66, 66, 67, 67, 68,
966 68, 68, 68, 68, 69, 69, 69, 69, 69, 69,
967 69, 69, 69, 69, 69, 70, 70, 70, 70, 70,
968 70, 70, 70, 71, 71, 71, 71, 72, 72, 72,
969 72, 72, 72, 73, 73, 73, 74, 74, 74, 75,
970 75, 76, 77, 77, 77, 77, 77, 78, 78, 78,
971 79, 80, 81, 82, 82, 82, 83, 83, 84, 84,
972 84, 84, 85, 85, 85, 85, 85, 85, 86, 86,
973 87, 88, 88, 89, 89, 89, 90, 90, 90, 90,
974 90, 90, 91, 91, 92, 92, 92, 93, 93, 94,
975 94, 94, 95, 95, 95, 95, 95, 96, 96, 96,
976 96, 96, 97, 97, 97, 98, 98, 98
726f6388 977};
f73dda09 978
3185942a
JA		 979/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */
980static const yytype_uint8 yyr2[] =
981{
982 0, 2, 2, 1, 2, 1, 1, 2, 2, 2,
0001803f
CR		 983 3, 3, 3, 3, 2, 3, 3, 2, 3, 3,
984 2, 3, 3, 2, 3, 3, 2, 3, 3, 2,
985 3, 3, 2, 3, 3, 2, 3, 3, 2, 3,
986 3, 2, 3, 3, 2, 3, 3, 2, 3, 3,
987 2, 2, 1, 1, 1, 1, 2, 1, 2, 1,
988 1, 2, 1, 1, 1, 1, 5, 5, 1, 1,
989 1, 1, 1, 1, 1, 6, 6, 7, 7, 10,
990 10, 9, 9, 7, 7, 5, 5, 6, 6, 7,
991 7, 10, 10, 6, 7, 6, 5, 6, 4, 1,
992 2, 3, 2, 3, 3, 4, 2, 5, 7, 6,
993 3, 1, 3, 4, 6, 5, 1, 2, 4, 4,
994 5, 5, 2, 3, 2, 3, 2, 3, 1, 3,
995 2, 1, 2, 3, 3, 3, 4, 4, 4, 4,
996 4, 1, 1, 1, 1, 1, 1, 0, 2, 1,
997 2, 2, 4, 4, 3, 3, 1, 1, 2, 2,
495aee44 998 2, 2, 4, 4, 1, 1, 2, 3
3185942a 999};
f73dda09 1000
3185942a
JA		 1001/* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state
1002 STATE-NUM when YYTABLE doesn't specify something else to do. Zero
1003 means the default is an error. */
1004static const yytype_uint8 yydefact[] =
1005{
0001803f 1006 0, 0, 147, 0, 0, 0, 147, 147, 0, 0,
495aee44 1007 0, 0, 165, 52, 53, 0, 0, 111, 0, 0,
0001803f 1008 0, 0, 0, 0, 0, 0, 0, 0, 3, 5,
495aee44 1009 0, 0, 147, 147, 0, 54, 57, 59, 164, 60,
0001803f
CR		 1010 64, 74, 68, 65, 62, 70, 63, 69, 71, 72,
1011 73, 0, 149, 156, 157, 0, 4, 131, 0, 0,
1012 147, 147, 0, 147, 0, 0, 147, 52, 106, 102,
495aee44 1013 0, 145, 144, 146, 161, 158, 166, 0, 0, 0,
0001803f 1014 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
495aee44
CR		 1015 0, 0, 0, 0, 0, 0, 0, 0, 14, 23,
1016 38, 32, 47, 29, 41, 35, 44, 26, 50, 51,
1017 20, 17, 8, 9, 0, 0, 1, 52, 58, 55,
1018 61, 142, 143, 2, 147, 147, 150, 151, 147, 147,
1019 160, 159, 147, 148, 130, 132, 141, 0, 147, 0,
1020 147, 147, 147, 147, 0, 147, 147, 0, 0, 104,
1021 103, 112, 167, 147, 16, 25, 40, 34, 49, 31,
1022 43, 37, 46, 28, 22, 19, 12, 13, 15, 24,
1023 39, 33, 48, 30, 42, 36, 45, 27, 21, 18,
1024 10, 11, 110, 101, 56, 0, 0, 154, 155, 0,
1025 0, 0, 147, 147, 147, 147, 147, 147, 0, 147,
1026 0, 147, 0, 0, 0, 0, 147, 0, 147, 0,
1027 0, 147, 99, 98, 105, 0, 152, 153, 0, 0,
1028 163, 162, 147, 147, 107, 0, 0, 0, 134, 135,
1029 133, 0, 116, 147, 0, 147, 147, 0, 6, 0,
1030 147, 0, 85, 86, 147, 147, 147, 147, 0, 0,
1031 0, 0, 66, 67, 0, 100, 96, 0, 0, 109,
1032 136, 137, 138, 139, 140, 95, 122, 124, 126, 117,
1033 0, 93, 128, 0, 0, 0, 0, 75, 7, 147,
1034 0, 76, 0, 0, 0, 0, 87, 0, 147, 88,
1035 97, 108, 147, 147, 147, 147, 123, 125, 127, 94,
1036 0, 0, 147, 77, 78, 0, 147, 147, 83, 84,
1037 89, 90, 0, 113, 0, 0, 0, 147, 129, 118,
1038 119, 147, 147, 0, 0, 147, 147, 147, 115, 120,
1039 121, 0, 0, 81, 82, 0, 0, 114, 79, 80,
1040 91, 92
726f6388 1041};
f73dda09 1042
3185942a
JA		 1043/* YYDEFGOTO[NTERM-NUM]. */
1044static const yytype_int16 yydefgoto[] =
1045{
495aee44
CR		 1046 -1, 34, 239, 35, 36, 120, 37, 38, 39, 40,
1047 41, 42, 43, 44, 213, 45, 46, 47, 48, 49,
1048 50, 225, 231, 232, 233, 274, 57, 58, 134, 135,
1049 123, 74, 59, 51, 187, 136, 54, 55
726f6388 1050};
f73dda09 1051
3185942a
JA		 1052/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
1053 STATE-NUM. */
495aee44 1054#define YYPACT_NINF -208
3185942a
JA		 1055static const yytype_int16 yypact[] =
1056{
495aee44
CR		 1057 296, -35, -208, -2, 38, 10, -208, -208, 24, 546,
1058 31, 346, 51, 47, -208, 591, 604, -208, 56, 71,
1059 -18, 112, 130, 115, 128, 136, 143, 154, -208, -208,
1060 157, 170, -208, -208, 111, -208, -208, 229, -208, 578,
1061 -208, -208, -208, -208, -208, -208, -208, -208, -208, -208,
1062 -208, -12, -3, -208, 48, 346, -208, -208, 208, 396,
1063 -208, 73, 15, 163, 190, 201, 160, 107, 229, 578,
1064 204, -208, -208, -208, -208, -208, 195, 165, 202, 215,
1065 152, 216, 153, 222, 227, 236, 237, 244, 245, 253,
1066 158, 254, 171, 255, 256, 259, 261, 262, -208, -208,
1067 -208, -208, -208, -208, -208, -208, -208, -208, -208, -208,
1068 -208, -208, -208, -208, 231, 230, -208, -208, -208, -208,
1069 578, -208, -208, -208, -208, -208, 446, 446, -208, -208,
1070 -208, -208, -208, -208, -208, 210, -208, 4, -208, 65,
1071 -208, -208, -208, -208, 70, -208, -208, 232, 41, 578,
1072 578, -208, -208, -208, -208, -208, -208, -208, -208, -208,
1073 -208, -208, -208, -208, -208, -208, -208, -208, -208, -208,
1074 -208, -208, -208, -208, -208, -208, -208, -208, -208, -208,
1075 -208, -208, -208, -208, -208, 396, 396, 23, 23, 496,
1076 496, 97, -208, -208, -208, -208, -208, -208, 85, -208,
1077 185, -208, 276, 235, 100, 110, -208, 268, -208, 280,
1078 283, -208, 578, -208, 578, 41, -208, -208, 446, 446,
1079 48, 48, -208, -208, -208, 295, 396, 396, 396, 396,
1080 396, 294, 161, -208, 19, -208, -208, 290, -208, 200,
1081 -208, 252, -208, -208, -208, -208, -208, -208, 302, 396,
1082 200, 269, -208, -208, 41, 578, -208, 313, 324, -208,
1083 -208, -208, 55, 55, 55, -208, -208, -208, -208, 192,
1084 34, -208, -208, 303, -19, 315, 278, -208, -208, -208,
1085 114, -208, 322, 286, 323, 287, -208, 210, -208, -208,
1086 -208, -208, -208, -208, -208, -208, -208, -208, -208, -208,
1087 8, 320, -208, -208, -208, 117, -208, -208, -208, -208,
1088 -208, -208, 119, 167, 396, 396, 396, -208, -208, -208,
1089 396, -208, -208, 337, 307, -208, -208, -208, -208, -208,
1090 396, 345, 308, -208, -208, 352, 312, -208, -208, -208,
1091 -208, -208
3185942a 1092};
f73dda09 1093
3185942a
JA		 1094/* YYPGOTO[NTERM-NUM]. */
1095static const yytype_int16 yypgoto[] =
1096{
495aee44
CR		 1097 -208, -208, 164, -37, -31, -62, 368, -208, -5, -208,
1098 -208, -208, -208, -208, -206, -208, -208, -208, -208, -208,
1099 -208, 66, -208, 145, -208, 88, -173, -6, -208, -207,
1100 -208, -45, -48, -208, 5, 3, 17, -208
3185942a 1101};
f73dda09 1102
3185942a
JA		 1103/* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If
1104 positive, shift that token. If negative, reduce the rule which
1105 number is the opposite. If zero, do what YYDEFACT says.
1106 If YYTABLE_NINF, syntax error. */
1107#define YYTABLE_NINF -1
1108static const yytype_uint16 yytable[] =
1109{
495aee44
CR		 1110 64, 65, 119, 53, 69, 52, 118, 150, 100, 256,
1111 130, 101, 137, 139, 75, 144, 56, 142, 148, 260,
1112 261, 262, 263, 264, 60, 197, 114, 115, 271, 140,
1113 124, 125, 119, 248, 301, 251, 63, 118, 102, 121,
1114 122, 302, 287, 299, 2, 272, 126, 127, 290, 3,
1115 66, 4, 5, 6, 7, 133, 124, 125, 131, 10,
1116 272, 301, 149, 70, 61, 71, 72, 73, 317, 62,
1117 133, 17, 141, 284, 285, 76, 185, 186, 273, 199,
1118 189, 190, 98, 184, 206, 133, 200, 214, 192, 193,
1119 198, 207, 133, 273, 204, 205, 128, 99, 32, 235,
1120 33, 129, 222, 223, 224, 215, 77, 262, 263, 264,
1121 2, 116, 119, 184, 244, 3, 133, 4, 5, 6,
1122 7, 133, 201, 138, 246, 10, 191, 208, 306, 53,
1123 53, 321, 188, 325, 202, 203, 133, 17, 103, 209,
1124 210, 107, 236, 212, 226, 227, 228, 229, 230, 234,
1125 255, 133, 335, 336, 108, 240, 104, 245, 249, 105,
1126 249, 133, 109, 254, 32, 133, 33, 247, 133, 110,
1127 133, 307, 327, 223, 322, 119, 326, 184, 156, 160,
1128 111, 157, 161, 112, 170, 270, 106, 171, 53, 53,
1129 216, 217, 280, 237, 279, 241, 113, 174, 249, 249,
1130 175, 266, 267, 268, 145, 288, 220, 221, 158, 162,
1131 212, 238, 132, 143, 172, 146, 257, 258, 184, 147,
1132 152, 53, 53, 151, 188, 153, 278, 176, 154, 275,
1133 276, 305, 296, 297, 298, 71, 72, 73, 282, 283,
1134 312, 155, 159, 192, 193, 314, 315, 316, 163, 212,
1135 71, 72, 73, 164, 320, 117, 14, 15, 16, 194,
1136 195, 196, 165, 166, 18, 19, 20, 21, 22, 330,
1137 167, 168, 23, 24, 25, 26, 27, 249, 249, 169,
1138 173, 177, 178, 30, 31, 179, 313, 180, 181, 182,
1139 183, 242, 211, 243, 238, 252, 319, 1, 253, 2,
1140 323, 324, 259, 265, 3, 277, 4, 5, 6, 7,
1141 281, 329, 8, 9, 10, 331, 332, 286, 11, 12,
1142 291, 337, 13, 14, 15, 16, 17, 289, 292, 272,
1143 303, 18, 19, 20, 21, 22, 304, 308, 310, 23,
1144 24, 25, 26, 27, 309, 311, 318, 28, 29, 2,
1145 30, 31, 333, 32, 3, 33, 4, 5, 6, 7,
1146 338, 300, 8, 9, 10, 334, 339, 340, 11, 12,
1147 341, 250, 13, 14, 15, 16, 17, 68, 269, 328,
1148 0, 18, 19, 20, 21, 22, 0, 0, 0, 23,
1149 24, 25, 26, 27, 0, 0, 71, 72, 73, 2,
1150 30, 31, 0, 32, 3, 33, 4, 5, 6, 7,
1151 0, 0, 8, 9, 10, 0, 0, 0, 11, 12,
0001803f
CR		 1152 0, 0, 13, 14, 15, 16, 17, 0, 0, 0,
1153 0, 18, 19, 20, 21, 22, 0, 0, 0, 23,
495aee44 1154 24, 25, 26, 27, 0, 0, 0, 133, 0, 2,
0001803f
CR		 1155 30, 31, 0, 32, 3, 33, 4, 5, 6, 7,
1156 0, 0, 8, 9, 10, 0, 0, 0, 11, 12,
495aee44
CR		 1157 0, 0, 13, 14, 15, 16, 17, 0, 0, 0,
1158 0, 18, 19, 20, 21, 22, 0, 0, 0, 23,
1159 24, 25, 26, 27, 0, 0, 0, 0, 0, 2,
1160 30, 31, 0, 32, 3, 33, 4, 5, 6, 7,
1161 0, 0, 8, 9, 10, 0, 0, 0, 0, 0,
1162 0, 0, 13, 14, 15, 16, 17, 0, 0, 0,
1163 0, 18, 19, 20, 21, 22, 0, 0, 0, 23,
1164 24, 25, 26, 27, 0, 0, 0, 133, 0, 2,
1165 30, 31, 0, 32, 3, 33, 4, 5, 6, 7,
1166 0, 0, 0, 0, 10, 0, 0, 0, 0, 0,
1167 0, 0, 67, 14, 15, 16, 17, 0, 0, 0,
1168 0, 18, 19, 20, 21, 22, 0, 0, 0, 23,
1169 24, 25, 26, 27, 0, 0, 0, 0, 0, 0,
1170 30, 31, 0, 32, 0, 33, 15, 16, 0, 0,
1171 0, 0, 0, 18, 19, 20, 21, 22, 0, 0,
1172 0, 23, 24, 25, 26, 27, 78, 79, 80, 81,
1173 82, 0, 30, 31, 83, 0, 0, 84, 85, 88,
1174 89, 90, 91, 92, 0, 86, 87, 93, 0, 0,
1175 94, 95, 0, 0, 0, 0, 0, 0, 96, 97
3185942a 1176};
f73dda09 1177
3185942a
JA		 1178static const yytype_int16 yycheck[] =
1179{
495aee44
CR		 1180 6, 7, 39, 0, 9, 0, 37, 69, 26, 215,
1181 55, 29, 60, 61, 11, 63, 51, 62, 66, 226,
1182 227, 228, 229, 230, 26, 21, 32, 33, 9, 14,
1183 33, 34, 69, 206, 53, 208, 26, 68, 56, 51,
1184 52, 60, 249, 9, 3, 26, 49, 50, 254, 8,
1185 26, 10, 11, 12, 13, 51, 33, 34, 55, 18,
1186 26, 53, 67, 32, 26, 50, 51, 52, 60, 31,
1187 51, 30, 57, 246, 247, 24, 124, 125, 59, 14,
1188 128, 129, 26, 120, 14, 51, 21, 149, 33, 34,
1189 138, 21, 51, 59, 142, 143, 48, 26, 57, 14,
1190 59, 53, 5, 6, 7, 153, 59, 314, 315, 316,
1191 3, 0, 149, 150, 14, 8, 51, 10, 11, 12,
1192 13, 51, 57, 50, 14, 18, 132, 57, 14, 126,
1193 127, 14, 127, 14, 140, 141, 51, 30, 26, 145,
1194 146, 26, 57, 148, 192, 193, 194, 195, 196, 197,
1195 212, 51, 325, 326, 26, 200, 26, 57, 206, 29,
1196 208, 51, 26, 211, 57, 51, 59, 57, 51, 26,
1197 51, 57, 5, 6, 57, 212, 57, 214, 26, 26,
1198 26, 29, 29, 26, 26, 233, 56, 29, 185, 186,
1199 185, 186, 240, 199, 239, 201, 26, 26, 246, 247,
1200 29, 40, 41, 42, 14, 250, 189, 190, 56, 56,
1201 215, 26, 4, 50, 56, 14, 222, 223, 255, 59,
1202 25, 218, 219, 19, 219, 60, 26, 56, 26, 235,
1203 236, 279, 40, 41, 42, 50, 51, 52, 244, 245,
1204 288, 26, 26, 33, 34, 293, 294, 295, 26, 254,
1205 50, 51, 52, 26, 302, 26, 27, 28, 29, 49,
1206 50, 51, 26, 26, 35, 36, 37, 38, 39, 317,
1207 26, 26, 43, 44, 45, 46, 47, 325, 326, 26,
1208 26, 26, 26, 54, 55, 26, 292, 26, 26, 58,
1209 60, 15, 60, 58, 26, 15, 302, 1, 15, 3,
1210 306, 307, 7, 9, 8, 15, 10, 11, 12, 13,
1211 58, 317, 16, 17, 18, 321, 322, 15, 22, 23,
1212 7, 327, 26, 27, 28, 29, 30, 58, 4, 26,
1213 15, 35, 36, 37, 38, 39, 58, 15, 15, 43,
1214 44, 45, 46, 47, 58, 58, 26, 51, 52, 3,
1215 54, 55, 15, 57, 8, 59, 10, 11, 12, 13,
1216 15, 273, 16, 17, 18, 58, 58, 15, 22, 23,
1217 58, 207, 26, 27, 28, 29, 30, 9, 233, 313,
1218 -1, 35, 36, 37, 38, 39, -1, -1, -1, 43,
1219 44, 45, 46, 47, -1, -1, 50, 51, 52, 3,
1220 54, 55, -1, 57, 8, 59, 10, 11, 12, 13,
0001803f 1221 -1, -1, 16, 17, 18, -1, -1, -1, 22, 23,
495aee44
CR		 1222 -1, -1, 26, 27, 28, 29, 30, -1, -1, -1,
1223 -1, 35, 36, 37, 38, 39, -1, -1, -1, 43,
1224 44, 45, 46, 47, -1, -1, -1, 51, -1, 3,
1225 54, 55, -1, 57, 8, 59, 10, 11, 12, 13,
1226 -1, -1, 16, 17, 18, -1, -1, -1, 22, 23,
1227 -1, -1, 26, 27, 28, 29, 30, -1, -1, -1,
1228 -1, 35, 36, 37, 38, 39, -1, -1, -1, 43,
1229 44, 45, 46, 47, -1, -1, -1, -1, -1, 3,
1230 54, 55, -1, 57, 8, 59, 10, 11, 12, 13,
1231 -1, -1, 16, 17, 18, -1, -1, -1, -1, -1,
1232 -1, -1, 26, 27, 28, 29, 30, -1, -1, -1,
1233 -1, 35, 36, 37, 38, 39, -1, -1, -1, 43,
1234 44, 45, 46, 47, -1, -1, -1, 51, -1, 3,
1235 54, 55, -1, 57, 8, 59, 10, 11, 12, 13,
1236 -1, -1, -1, -1, 18, -1, -1, -1, -1, -1,
1237 -1, -1, 26, 27, 28, 29, 30, -1, -1, -1,
1238 -1, 35, 36, 37, 38, 39, -1, -1, -1, 43,
1239 44, 45, 46, 47, -1, -1, -1, -1, -1, -1,
1240 54, 55, -1, 57, -1, 59, 28, 29, -1, -1,
1241 -1, -1, -1, 35, 36, 37, 38, 39, -1, -1,
1242 -1, 43, 44, 45, 46, 47, 35, 36, 37, 38,
1243 39, -1, 54, 55, 43, -1, -1, 46, 47, 35,
1244 36, 37, 38, 39, -1, 54, 55, 43, -1, -1,
1245 46, 47, -1, -1, -1, -1, -1, -1, 54, 55
3185942a 1246};
f73dda09 1247
3185942a
JA		 1248/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
1249 symbol of state STATE-NUM. */
1250static const yytype_uint8 yystos[] =
1251{
1252 0, 1, 3, 8, 10, 11, 12, 13, 16, 17,
495aee44
CR		 1253 18, 22, 23, 26, 27, 28, 29, 30, 35, 36,
1254 37, 38, 39, 43, 44, 45, 46, 47, 51, 52,
1255 54, 55, 57, 59, 62, 64, 65, 67, 68, 69,
1256 70, 71, 72, 73, 74, 76, 77, 78, 79, 80,
1257 81, 94, 95, 96, 97, 98, 51, 87, 88, 93,
1258 26, 26, 31, 26, 88, 88, 26, 26, 67, 69,
1259 32, 50, 51, 52, 92, 96, 24, 59, 35, 36,
1260 37, 38, 39, 43, 46, 47, 54, 55, 35, 36,
1261 37, 38, 39, 43, 46, 47, 54, 55, 26, 26,
1262 26, 29, 56, 26, 26, 29, 56, 26, 26, 26,
1263 26, 26, 26, 26, 88, 88, 0, 26, 65, 64,
1264 66, 51, 52, 91, 33, 34, 49, 50, 48, 53,
1265 92, 96, 4, 51, 89, 90, 96, 93, 50, 93,
1266 14, 57, 92, 50, 93, 14, 14, 59, 93, 69,
1267 66, 19, 25, 60, 26, 26, 26, 29, 56, 26,
1268 26, 29, 56, 26, 26, 26, 26, 26, 26, 26,
1269 26, 29, 56, 26, 26, 29, 56, 26, 26, 26,
1270 26, 26, 58, 60, 64, 93, 93, 95, 95, 93,
1271 93, 88, 33, 34, 49, 50, 51, 21, 93, 14,
1272 21, 57, 88, 88, 93, 93, 14, 21, 57, 88,
1273 88, 60, 69, 75, 66, 93, 95, 95, 49, 50,
1274 97, 97, 5, 6, 7, 82, 93, 93, 93, 93,
1275 93, 83, 84, 85, 93, 14, 57, 88, 26, 63,
1276 92, 88, 15, 58, 14, 57, 14, 57, 87, 93,
1277 63, 87, 15, 15, 93, 66, 75, 88, 88, 7,
1278 90, 90, 90, 90, 90, 9, 40, 41, 42, 84,
1279 93, 9, 26, 59, 86, 88, 88, 15, 26, 92,
1280 93, 58, 88, 88, 87, 87, 15, 90, 92, 58,
1281 75, 7, 4, 49, 50, 51, 40, 41, 42, 9,
1282 86, 53, 60, 15, 58, 93, 14, 57, 15, 58,
1283 15, 58, 93, 88, 93, 93, 93, 60, 26, 88,
1284 93, 14, 57, 88, 88, 14, 57, 5, 82, 88,
1285 93, 88, 88, 15, 58, 87, 87, 88, 15, 58,
1286 15, 58
3185942a 1287};
b80f6443 1288
f73dda09
JA		 1289#define yyerrok (yyerrstatus = 0)
1290#define yyclearin (yychar = YYEMPTY)
3185942a 1291#define YYEMPTY (-2)
f73dda09 1292#define YYEOF 0
3185942a 1293
f73dda09 1294#define YYACCEPT goto yyacceptlab
3185942a
JA		 1295#define YYABORT goto yyabortlab
1296#define YYERROR goto yyerrorlab
1297
1298
1299/* Like YYERROR except do call yyerror. This remains here temporarily
1300 to ease the transition to the new meaning of YYERROR, for GCC.
f73dda09 1301 Once GCC version 2 has supplanted version 1, this can go. */
3185942a 1302
f73dda09 1303#define YYFAIL goto yyerrlab
3185942a 1304
f73dda09 1305#define YYRECOVERING() (!!yyerrstatus)
3185942a
JA		 1306
1307#define YYBACKUP(Token, Value) \
f73dda09
JA		 1308do \
1309 if (yychar == YYEMPTY && yylen == 1) \
3185942a
JA		 1310 { \
1311 yychar = (Token); \
1312 yylval = (Value); \
1313 yytoken = YYTRANSLATE (yychar); \
1314 YYPOPSTACK (1); \
f73dda09
JA		 1315 goto yybackup; \
1316 } \
1317 else \
3185942a
JA		 1318 { \
1319 yyerror (YY_("syntax error: cannot back up")); \
1320 YYERROR; \
1321 } \
1322while (YYID (0))
1323
f73dda09
JA		 1324
1325#define YYTERROR 1
1326#define YYERRCODE 256
1327
3185942a
JA		 1328
1329/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
1330 If N is 0, then set CURRENT to the empty location which ends
1331 the previous symbol: RHS[0] (always defined). */
1332
1333#define YYRHSLOC(Rhs, K) ((Rhs)[K])
1334#ifndef YYLLOC_DEFAULT
1335# define YYLLOC_DEFAULT(Current, Rhs, N) \
1336 do \
1337 if (YYID (N)) \
1338 { \
1339 (Current).first_line = YYRHSLOC (Rhs, 1).first_line; \
1340 (Current).first_column = YYRHSLOC (Rhs, 1).first_column; \
1341 (Current).last_line = YYRHSLOC (Rhs, N).last_line; \
1342 (Current).last_column = YYRHSLOC (Rhs, N).last_column; \
1343 } \
1344 else \
1345 { \
1346 (Current).first_line = (Current).last_line = \
1347 YYRHSLOC (Rhs, 0).last_line; \
1348 (Current).first_column = (Current).last_column = \
1349 YYRHSLOC (Rhs, 0).last_column; \
1350 } \
1351 while (YYID (0))
b80f6443 1352#endif
f73dda09 1353
3185942a
JA		 1354
1355/* YY_LOCATION_PRINT -- Print the location on the stream.
1356 This macro was not mandated originally: define only if we know
1357 we won't break user code: when these are the locations we know. */
1358
1359#ifndef YY_LOCATION_PRINT
509a4430 1360# if defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL
3185942a
JA		 1361# define YY_LOCATION_PRINT(File, Loc) \
1362 fprintf (File, "%d.%d-%d.%d", \
1363 (Loc).first_line, (Loc).first_column, \
1364 (Loc).last_line, (Loc).last_column)
1365# else
1366# define YY_LOCATION_PRINT(File, Loc) ((void) 0)
1367# endif
b80f6443 1368#endif
3185942a
JA		 1369
1370
1371/* YYLEX -- calling `yylex' with the right arguments. */
1372
b80f6443 1373#ifdef YYLEX_PARAM
3185942a 1374# define YYLEX yylex (YYLEX_PARAM)
b80f6443 1375#else
3185942a 1376# define YYLEX yylex ()
b80f6443 1377#endif
3185942a
JA		 1378
1379/* Enable debugging if requested. */
1380#if YYDEBUG
1381
1382# ifndef YYFPRINTF
1383# include <stdio.h> /* INFRINGES ON USER NAME SPACE */
1384# define YYFPRINTF fprintf
1385# endif
1386
1387# define YYDPRINTF(Args) \
1388do { \
1389 if (yydebug) \
1390 YYFPRINTF Args; \
1391} while (YYID (0))
1392
1393# define YY_SYMBOL_PRINT(Title, Type, Value, Location) \
1394do { \
1395 if (yydebug) \
1396 { \
1397 YYFPRINTF (stderr, "%s ", Title); \
1398 yy_symbol_print (stderr, \
1399 Type, Value); \
1400 YYFPRINTF (stderr, "\n"); \
1401 } \
1402} while (YYID (0))
1403
1404
1405/*--------------------------------.
1406| Print this symbol on YYOUTPUT. |
1407`--------------------------------*/
1408
1409/*ARGSUSED*/
1410#if (defined __STDC__ || defined __C99__FUNC__ \
1411 || defined __cplusplus || defined _MSC_VER)
1412static void
1413yy_symbol_value_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep)
1414#else
1415static void
1416yy_symbol_value_print (yyoutput, yytype, yyvaluep)
1417 FILE *yyoutput;
1418 int yytype;
1419 YYSTYPE const * const yyvaluep;
b80f6443 1420#endif
3185942a
JA		 1421{
1422 if (!yyvaluep)
1423 return;
1424# ifdef YYPRINT
1425 if (yytype < YYNTOKENS)
1426 YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep);
1427# else
1428 YYUSE (yyoutput);
1429# endif
1430 switch (yytype)
1431 {
1432 default:
1433 break;
1434 }
1435}
1436
1437
1438/*--------------------------------.
1439| Print this symbol on YYOUTPUT. |
1440`--------------------------------*/
b80f6443 1441
3185942a
JA		 1442#if (defined __STDC__ || defined __C99__FUNC__ \
1443 || defined __cplusplus || defined _MSC_VER)
1444static void
1445yy_symbol_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep)
1446#else
1447static void
1448yy_symbol_print (yyoutput, yytype, yyvaluep)
1449 FILE *yyoutput;
1450 int yytype;
1451 YYSTYPE const * const yyvaluep;
1452#endif
1453{
1454 if (yytype < YYNTOKENS)
1455 YYFPRINTF (yyoutput, "token %s (", yytname[yytype]);
1456 else
1457 YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]);
726f6388 1458
3185942a
JA		 1459 yy_symbol_value_print (yyoutput, yytype, yyvaluep);
1460 YYFPRINTF (yyoutput, ")");
1461}
726f6388 1462
3185942a
JA		 1463/*------------------------------------------------------------------.
1464| yy_stack_print -- Print the state stack from its BOTTOM up to its |
1465| TOP (included). |
1466`------------------------------------------------------------------*/
b80f6443 1467
3185942a
JA		 1468#if (defined __STDC__ || defined __C99__FUNC__ \
1469 || defined __cplusplus || defined _MSC_VER)
1470static void
1471yy_stack_print (yytype_int16 *bottom, yytype_int16 *top)
1472#else
1473static void
1474yy_stack_print (bottom, top)
1475 yytype_int16 *bottom;
1476 yytype_int16 *top;
f73dda09 1477#endif
3185942a
JA		 1478{
1479 YYFPRINTF (stderr, "Stack now");
1480 for (; bottom <= top; ++bottom)
1481 YYFPRINTF (stderr, " %d", *bottom);
1482 YYFPRINTF (stderr, "\n");
1483}
726f6388 1484
3185942a
JA		 1485# define YY_STACK_PRINT(Bottom, Top) \
1486do { \
1487 if (yydebug) \
1488 yy_stack_print ((Bottom), (Top)); \
1489} while (YYID (0))
726f6388 1490
3185942a
JA		 1491
1492/*------------------------------------------------.
1493| Report that the YYRULE is going to be reduced. |
1494`------------------------------------------------*/
1495
1496#if (defined __STDC__ || defined __C99__FUNC__ \
1497 || defined __cplusplus || defined _MSC_VER)
1498static void
1499yy_reduce_print (YYSTYPE *yyvsp, int yyrule)
1500#else
1501static void
1502yy_reduce_print (yyvsp, yyrule)
1503 YYSTYPE *yyvsp;
1504 int yyrule;
b80f6443 1505#endif
3185942a
JA		 1506{
1507 int yynrhs = yyr2[yyrule];
1508 int yyi;
1509 unsigned long int yylno = yyrline[yyrule];
1510 YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n",
1511 yyrule - 1, yylno);
1512 /* The symbols being reduced. */
1513 for (yyi = 0; yyi < yynrhs; yyi++)
1514 {
1515 fprintf (stderr, " $%d = ", yyi + 1);
1516 yy_symbol_print (stderr, yyrhs[yyprhs[yyrule] + yyi],
1517 &(yyvsp[(yyi + 1) - (yynrhs)])
1518 );
1519 fprintf (stderr, "\n");
1520 }
1521}
1522
1523# define YY_REDUCE_PRINT(Rule) \
1524do { \
1525 if (yydebug) \
1526 yy_reduce_print (yyvsp, Rule); \
1527} while (YYID (0))
b80f6443 1528
3185942a
JA		 1529/* Nonzero means print parse trace. It is left uninitialized so that
1530 multiple parsers can coexist. */
1531int yydebug;
1532#else /* !YYDEBUG */
1533# define YYDPRINTF(Args)
1534# define YY_SYMBOL_PRINT(Title, Type, Value, Location)
1535# define YY_STACK_PRINT(Bottom, Top)
1536# define YY_REDUCE_PRINT(Rule)
1537#endif /* !YYDEBUG */
726f6388 1538
3185942a
JA		 1539
1540/* YYINITDEPTH -- initial size of the parser's stacks. */
f73dda09 1541#ifndef YYINITDEPTH
3185942a 1542# define YYINITDEPTH 200
f73dda09 1543#endif
726f6388 1544
3185942a
JA		 1545/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
1546 if the built-in stack extension method is used).
726f6388 1547
3185942a
JA		 1548 Do not make this value too large; the results are undefined if
1549 YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH)
1550 evaluated with infinite-precision integer arithmetic. */
726f6388 1551
f73dda09 1552#ifndef YYMAXDEPTH
3185942a 1553# define YYMAXDEPTH 10000
f73dda09 1554#endif
3185942a 1555
f73dda09 1556\f
3185942a
JA		 1557
1558#if YYERROR_VERBOSE
1559
1560# ifndef yystrlen
1561# if defined __GLIBC__ && defined _STRING_H
1562# define yystrlen strlen
1563# else
1564/* Return the length of YYSTR. */
1565#if (defined __STDC__ || defined __C99__FUNC__ \
1566 || defined __cplusplus || defined _MSC_VER)
1567static YYSIZE_T
1568yystrlen (const char *yystr)
1569#else
1570static YYSIZE_T
1571yystrlen (yystr)
1572 const char *yystr;
1573#endif
1574{
1575 YYSIZE_T yylen;
1576 for (yylen = 0; yystr[yylen]; yylen++)
1577 continue;
1578 return yylen;
1579}
1580# endif
1581# endif
1582
1583# ifndef yystpcpy
1584# if defined __GLIBC__ && defined _STRING_H && defined _GNU_SOURCE
1585# define yystpcpy stpcpy
1586# else
1587/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
1588 YYDEST. */
1589#if (defined __STDC__ || defined __C99__FUNC__ \
1590 || defined __cplusplus || defined _MSC_VER)
1591static char *
1592yystpcpy (char *yydest, const char *yysrc)
1593#else
1594static char *
1595yystpcpy (yydest, yysrc)
1596 char *yydest;
1597 const char *yysrc;
1598#endif
726f6388 1599{
3185942a
JA		 1600 char *yyd = yydest;
1601 const char *yys = yysrc;
1602
1603 while ((*yyd++ = *yys++) != '\0')
1604 continue;
1605
1606 return yyd - 1;
1607}
1608# endif
1609# endif
1610
1611# ifndef yytnamerr
1612/* Copy to YYRES the contents of YYSTR after stripping away unnecessary
1613 quotes and backslashes, so that it's suitable for yyerror. The
1614 heuristic is that double-quoting is unnecessary unless the string
1615 contains an apostrophe, a comma, or backslash (other than
1616 backslash-backslash). YYSTR is taken from yytname. If YYRES is
1617 null, do not copy; instead, return the length of what the result
1618 would have been. */
1619static YYSIZE_T
1620yytnamerr (char *yyres, const char *yystr)
1621{
1622 if (*yystr == '"')
1623 {
1624 YYSIZE_T yyn = 0;
1625 char const *yyp = yystr;
1626
1627 for (;;)
1628 switch (*++yyp)
1629 {
1630 case '\'':
1631 case ',':
1632 goto do_not_strip_quotes;
1633
1634 case '\\':
1635 if (*++yyp != '\\')
1636 goto do_not_strip_quotes;
1637 /* Fall through. */
1638 default:
1639 if (yyres)
1640 yyres[yyn] = *yyp;
1641 yyn++;
1642 break;
1643
1644 case '"':
1645 if (yyres)
1646 yyres[yyn] = '\0';
1647 return yyn;
1648 }
1649 do_not_strip_quotes: ;
1650 }
f73dda09 1651
3185942a
JA		 1652 if (! yyres)
1653 return yystrlen (yystr);
1654
1655 return yystpcpy (yyres, yystr) - yyres;
1656}
1657# endif
1658
1659/* Copy into YYRESULT an error message about the unexpected token
1660 YYCHAR while in state YYSTATE. Return the number of bytes copied,
1661 including the terminating null byte. If YYRESULT is null, do not
1662 copy anything; just return the number of bytes that would be
1663 copied. As a special case, return 0 if an ordinary "syntax error"
1664 message will do. Return YYSIZE_MAXIMUM if overflow occurs during
1665 size calculation. */
1666static YYSIZE_T
1667yysyntax_error (char *yyresult, int yystate, int yychar)
1668{
1669 int yyn = yypact[yystate];
1670
1671 if (! (YYPACT_NINF < yyn && yyn <= YYLAST))
1672 return 0;
1673 else
1674 {
1675 int yytype = YYTRANSLATE (yychar);
1676 YYSIZE_T yysize0 = yytnamerr (0, yytname[yytype]);
1677 YYSIZE_T yysize = yysize0;
1678 YYSIZE_T yysize1;
1679 int yysize_overflow = 0;
1680 enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
1681 char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
1682 int yyx;
1683
1684# if 0
1685 /* This is so xgettext sees the translatable formats that are
1686 constructed on the fly. */
1687 YY_("syntax error, unexpected %s");
1688 YY_("syntax error, unexpected %s, expecting %s");
1689 YY_("syntax error, unexpected %s, expecting %s or %s");
1690 YY_("syntax error, unexpected %s, expecting %s or %s or %s");
1691 YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s");
1692# endif
1693 char *yyfmt;
1694 char const *yyf;
1695 static char const yyunexpected[] = "syntax error, unexpected %s";
1696 static char const yyexpecting[] = ", expecting %s";
1697 static char const yyor[] = " or %s";
1698 char yyformat[sizeof yyunexpected
1699 + sizeof yyexpecting - 1
1700 + ((YYERROR_VERBOSE_ARGS_MAXIMUM - 2)
1701 * (sizeof yyor - 1))];
1702 char const *yyprefix = yyexpecting;
1703
1704 /* Start YYX at -YYN if negative to avoid negative indexes in
1705 YYCHECK. */
1706 int yyxbegin = yyn < 0 ? -yyn : 0;
1707
1708 /* Stay within bounds of both yycheck and yytname. */
1709 int yychecklim = YYLAST - yyn + 1;
1710 int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
1711 int yycount = 1;
1712
1713 yyarg[0] = yytname[yytype];
1714 yyfmt = yystpcpy (yyformat, yyunexpected);
1715
1716 for (yyx = yyxbegin; yyx < yyxend; ++yyx)
1717 if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
1718 {
1719 if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
1720 {
1721 yycount = 1;
1722 yysize = yysize0;
1723 yyformat[sizeof yyunexpected - 1] = '\0';
1724 break;
1725 }
1726 yyarg[yycount++] = yytname[yyx];
1727 yysize1 = yysize + yytnamerr (0, yytname[yyx]);
1728 yysize_overflow |= (yysize1 < yysize);
1729 yysize = yysize1;
1730 yyfmt = yystpcpy (yyfmt, yyprefix);
1731 yyprefix = yyor;
1732 }
1733
1734 yyf = YY_(yyformat);
1735 yysize1 = yysize + yystrlen (yyf);
1736 yysize_overflow |= (yysize1 < yysize);
1737 yysize = yysize1;
1738
1739 if (yysize_overflow)
1740 return YYSIZE_MAXIMUM;
1741
1742 if (yyresult)
1743 {
1744 /* Avoid sprintf, as that infringes on the user's name space.
1745 Don't have undefined behavior even if the translation
1746 produced a string with the wrong number of "%s"s. */
1747 char *yyp = yyresult;
1748 int yyi = 0;
1749 while ((*yyp = *yyf) != '\0')
1750 {
1751 if (*yyp == '%' && yyf[1] == 's' && yyi < yycount)
1752 {
1753 yyp += yytnamerr (yyp, yyarg[yyi++]);
1754 yyf += 2;
1755 }
1756 else
1757 {
1758 yyp++;
1759 yyf++;
1760 }
1761 }
1762 }
1763 return yysize;
1764 }
726f6388 1765}
3185942a
JA		 1766#endif /* YYERROR_VERBOSE */
1767\f
726f6388 1768
3185942a
JA		 1769/*-----------------------------------------------.
1770| Release the memory associated to this symbol. |
1771`-----------------------------------------------*/
726f6388 1772
3185942a
JA		 1773/*ARGSUSED*/
1774#if (defined __STDC__ || defined __C99__FUNC__ \
1775 || defined __cplusplus || defined _MSC_VER)
1776static void
1777yydestruct (const char *yymsg, int yytype, YYSTYPE *yyvaluep)
1778#else
b80f6443 1779static void
3185942a
JA		 1780yydestruct (yymsg, yytype, yyvaluep)
1781 const char *yymsg;
1782 int yytype;
1783 YYSTYPE *yyvaluep;
1784#endif
7117c2d2 1785{
3185942a 1786 YYUSE (yyvaluep);
726f6388 1787
3185942a
JA		 1788 if (!yymsg)
1789 yymsg = "Deleting";
1790 YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp);
b80f6443 1791
3185942a
JA		 1792 switch (yytype)
1793 {
1794
1795 default:
1796 break;
1797 }
1798}
f73dda09 1799\f
f73dda09 1800
3185942a 1801/* Prevent warnings from -Wmissing-prototypes. */
f73dda09
JA		 1802
1803#ifdef YYPARSE_PARAM
3185942a
JA		 1804#if defined __STDC__ || defined __cplusplus
1805int yyparse (void *YYPARSE_PARAM);
b80f6443 1806#else
3185942a 1807int yyparse ();
f73dda09 1808#endif
3185942a
JA		 1809#else /* ! YYPARSE_PARAM */
1810#if defined __STDC__ || defined __cplusplus
1811int yyparse (void);
1812#else
1813int yyparse ();
726f6388 1814#endif
3185942a
JA		 1815#endif /* ! YYPARSE_PARAM */
1816
726f6388 1817
726f6388 1818
3185942a
JA		 1819/* The look-ahead symbol. */
1820int yychar;
b80f6443 1821
3185942a
JA		 1822/* The semantic value of the look-ahead symbol. */
1823YYSTYPE yylval;
b80f6443 1824
3185942a
JA		 1825/* Number of syntax errors so far. */
1826int yynerrs;
726f6388 1827
3185942a
JA		 1828
1829
1830/*----------.
1831| yyparse. |
1832`----------*/
1833
1834#ifdef YYPARSE_PARAM
1835#if (defined __STDC__ || defined __C99__FUNC__ \
1836 || defined __cplusplus || defined _MSC_VER)
1837int
1838yyparse (void *YYPARSE_PARAM)
f73dda09 1839#else
3185942a
JA		 1840int
1841yyparse (YYPARSE_PARAM)
1842 void *YYPARSE_PARAM;
f73dda09 1843#endif
3185942a
JA		 1844#else /* ! YYPARSE_PARAM */
1845#if (defined __STDC__ || defined __C99__FUNC__ \
1846 || defined __cplusplus || defined _MSC_VER)
1847int
1848yyparse (void)
1849#else
1850int
1851yyparse ()
726f6388 1852
b80f6443 1853#endif
3185942a
JA		 1854#endif
1855{
1856
1857 int yystate;
1858 int yyn;
1859 int yyresult;
1860 /* Number of tokens to shift before error messages enabled. */
1861 int yyerrstatus;
1862 /* Look-ahead token as an internal (translated) token number. */
1863 int yytoken = 0;
1864#if YYERROR_VERBOSE
1865 /* Buffer for error messages, and its allocated size. */
1866 char yymsgbuf[128];
1867 char *yymsg = yymsgbuf;
1868 YYSIZE_T yymsg_alloc = sizeof yymsgbuf;
7117c2d2 1869#endif
726f6388 1870
3185942a
JA		 1871 /* Three stacks and their tools:
1872 `yyss': related to states,
1873 `yyvs': related to semantic values,
1874 `yyls': related to locations.
b80f6443 1875
3185942a
JA		 1876 Refer to the stacks thru separate pointers, to allow yyoverflow
1877 to reallocate them elsewhere. */
726f6388 1878
3185942a
JA		 1879 /* The state stack. */
1880 yytype_int16 yyssa[YYINITDEPTH];
1881 yytype_int16 *yyss = yyssa;
1882 yytype_int16 *yyssp;
1883
1884 /* The semantic value stack. */
1885 YYSTYPE yyvsa[YYINITDEPTH];
1886 YYSTYPE *yyvs = yyvsa;
1887 YYSTYPE *yyvsp;
1888
1889
1890
1891#define YYPOPSTACK(N) (yyvsp -= (N), yyssp -= (N))
1892
1893 YYSIZE_T yystacksize = YYINITDEPTH;
1894
1895 /* The variables used to return semantic value and location from the
1896 action routines. */
1897 YYSTYPE yyval;
1898
1899
1900 /* The number of symbols on the RHS of the reduced rule.
1901 Keep to zero when no symbol should be popped. */
1902 int yylen = 0;
1903
1904 YYDPRINTF ((stderr, "Starting parse\n"));
726f6388 1905
f73dda09
JA		 1906 yystate = 0;
1907 yyerrstatus = 0;
1908 yynerrs = 0;
1909 yychar = YYEMPTY; /* Cause a token to be read. */
1910
1911 /* Initialize stack pointers.
1912 Waste one element of value and location stack
1913 so that they stay on the same level as the state stack.
1914 The wasted elements are never initialized. */
1915
3185942a 1916 yyssp = yyss;
f73dda09 1917 yyvsp = yyvs;
f73dda09 1918
3185942a 1919 goto yysetstate;
f73dda09 1920
3185942a
JA		 1921/*------------------------------------------------------------.
1922| yynewstate -- Push a new state, which is found in yystate. |
1923`------------------------------------------------------------*/
1924 yynewstate:
1925 /* In all cases, when you get here, the value and location stacks
1926 have just been pushed. So pushing a state here evens the stacks. */
1927 yyssp++;
f73dda09 1928
3185942a
JA		 1929 yysetstate:
1930 *yyssp = yystate;
b80f6443 1931
3185942a
JA		 1932 if (yyss + yystacksize - 1 <= yyssp)
1933 {
f73dda09 1934 /* Get the current used size of the three stacks, in elements. */
3185942a 1935 YYSIZE_T yysize = yyssp - yyss + 1;
f73dda09
JA		 1936
1937#ifdef yyoverflow
3185942a
JA		 1938 {
1939 /* Give user a chance to reallocate the stack. Use copies of
1940 these so that the &'s don't force the real ones into
1941 memory. */
1942 YYSTYPE *yyvs1 = yyvs;
1943 yytype_int16 *yyss1 = yyss;
b80f6443 1944
3185942a
JA		 1945
1946 /* Each stack pointer address is followed by the size of the
1947 data in use in that stack, in bytes. This used to be a
1948 conditional around just the two extra args, but that might
1949 be undefined if yyoverflow is a macro. */
1950 yyoverflow (YY_("memory exhausted"),
1951 &yyss1, yysize * sizeof (*yyssp),
1952 &yyvs1, yysize * sizeof (*yyvsp),
1953
1954 &yystacksize);
1955
1956 yyss = yyss1;
1957 yyvs = yyvs1;
1958 }
f73dda09 1959#else /* no yyoverflow */
3185942a
JA		 1960# ifndef YYSTACK_RELOCATE
1961 goto yyexhaustedlab;
1962# else
f73dda09 1963 /* Extend the stack our own way. */
3185942a
JA		 1964 if (YYMAXDEPTH <= yystacksize)
1965 goto yyexhaustedlab;
f73dda09 1966 yystacksize *= 2;
3185942a 1967 if (YYMAXDEPTH < yystacksize)
f73dda09 1968 yystacksize = YYMAXDEPTH;
3185942a
JA		 1969
1970 {
1971 yytype_int16 *yyss1 = yyss;
1972 union yyalloc *yyptr =
1973 (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
1974 if (! yyptr)
1975 goto yyexhaustedlab;
1976 YYSTACK_RELOCATE (yyss);
1977 YYSTACK_RELOCATE (yyvs);
1978
1979# undef YYSTACK_RELOCATE
1980 if (yyss1 != yyssa)
1981 YYSTACK_FREE (yyss1);
1982 }
1983# endif
f73dda09 1984#endif /* no yyoverflow */
726f6388 1985
3185942a
JA		 1986 yyssp = yyss + yysize - 1;
1987 yyvsp = yyvs + yysize - 1;
726f6388 1988
726f6388 1989
3185942a
JA		 1990 YYDPRINTF ((stderr, "Stack size increased to %lu\n",
1991 (unsigned long int) yystacksize));
1992
1993 if (yyss + yystacksize - 1 <= yyssp)
f73dda09 1994 YYABORT;
726f6388
JA		 1995 }
1996
3185942a 1997 YYDPRINTF ((stderr, "Entering state %d\n", yystate));
28ef6c31 1998
f73dda09 1999 goto yybackup;
28ef6c31 2000
3185942a
JA		 2001/*-----------.
2002| yybackup. |
2003`-----------*/
2004yybackup:
28ef6c31 2005
3185942a
JA		 2006 /* Do appropriate processing given the current state. Read a
2007 look-ahead token if we need one and don't already have one. */
726f6388 2008
3185942a 2009 /* First try to decide what to do without reference to look-ahead token. */
f73dda09 2010 yyn = yypact[yystate];
3185942a 2011 if (yyn == YYPACT_NINF)
f73dda09 2012 goto yydefault;
726f6388 2013
3185942a 2014 /* Not known => get a look-ahead token if don't already have one. */
726f6388 2015
3185942a 2016 /* YYCHAR is either YYEMPTY or YYEOF or a valid look-ahead symbol. */
f73dda09 2017 if (yychar == YYEMPTY)
726f6388 2018 {
3185942a 2019 YYDPRINTF ((stderr, "Reading a token: "));
f73dda09 2020 yychar = YYLEX;
726f6388 2021 }
726f6388 2022
3185942a 2023 if (yychar <= YYEOF)
f73dda09 2024 {
3185942a
JA		 2025 yychar = yytoken = YYEOF;
2026 YYDPRINTF ((stderr, "Now at end of input.\n"));
f73dda09
JA		 2027 }
2028 else
2029 {
3185942a
JA		 2030 yytoken = YYTRANSLATE (yychar);
2031 YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
f73dda09 2032 }
726f6388 2033
3185942a
JA		 2034 /* If the proper action on seeing token YYTOKEN is to reduce or to
2035 detect an error, take that action. */
2036 yyn += yytoken;
2037 if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
f73dda09 2038 goto yydefault;
f73dda09 2039 yyn = yytable[yyn];
3185942a 2040 if (yyn <= 0)
f73dda09 2041 {
3185942a 2042 if (yyn == 0 || yyn == YYTABLE_NINF)
f73dda09
JA		 2043 goto yyerrlab;
2044 yyn = -yyn;
2045 goto yyreduce;
2046 }
726f6388 2047
f73dda09
JA		 2048 if (yyn == YYFINAL)
2049 YYACCEPT;
726f6388 2050
3185942a
JA		 2051 /* Count tokens shifted since error; after three, turn off error
2052 status. */
2053 if (yyerrstatus)
2054 yyerrstatus--;
b80f6443 2055
3185942a
JA		 2056 /* Shift the look-ahead token. */
2057 YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
726f6388 2058
3185942a 2059 /* Discard the shifted token unless it is eof. */
f73dda09
JA		 2060 if (yychar != YYEOF)
2061 yychar = YYEMPTY;
28ef6c31 2062
3185942a 2063 yystate = yyn;
f73dda09 2064 *++yyvsp = yylval;
28ef6c31 2065
f73dda09 2066 goto yynewstate;
726f6388 2067
b80f6443 2068
3185942a
JA		 2069/*-----------------------------------------------------------.
2070| yydefault -- do the default action for the current state. |
2071`-----------------------------------------------------------*/
2072yydefault:
f73dda09
JA		 2073 yyn = yydefact[yystate];
2074 if (yyn == 0)
2075 goto yyerrlab;
3185942a 2076 goto yyreduce;
28ef6c31 2077
3185942a
JA		 2078
2079/*-----------------------------.
2080| yyreduce -- Do a reduction. |
2081`-----------------------------*/
f73dda09 2082yyreduce:
3185942a 2083 /* yyn is the number of a rule to reduce with. */
f73dda09 2084 yylen = yyr2[yyn];
28ef6c31 2085
3185942a
JA		 2086 /* If YYLEN is nonzero, implement the default value of the action:
2087 `$$ = $1'.
28ef6c31 2088
3185942a
JA		 2089 Otherwise, the following line sets YYVAL to garbage.
2090 This behavior is undocumented and Bison
2091 users should not rely upon it. Assigning to YYVAL
2092 unconditionally makes the parser a bit smaller, and it avoids a
2093 GCC warning that YYVAL may be used uninitialized. */
2094 yyval = yyvsp[1-yylen];
b80f6443 2095
28ef6c31 2096
3185942a
JA		 2097 YY_REDUCE_PRINT (yyn);
2098 switch (yyn)
2099 {
2100 case 2:
ca6a2ba4 2101#line 383 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2102 {
f73dda09
JA		 2103 /* Case of regular command. Discard the error
2104 safety net,and return the command just parsed. */
3185942a 2105 global_command = (yyvsp[(1) - (2)].command);
f73dda09 2106 eof_encountered = 0;
7117c2d2 2107 /* discard_parser_constructs (0); */
3185942a
JA		 2108 if (parser_state & PST_CMDSUBST)
2109 parser_state |= PST_EOFTOKEN;
f73dda09 2110 YYACCEPT;
3185942a
JA		 2111 }
2112 break;
2113
2114 case 3:
ca6a2ba4 2115#line 394 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2116 {
f73dda09
JA		 2117 /* Case of regular command, but not a very
2118 interesting one. Return a NULL command. */
2119 global_command = (COMMAND *)NULL;
3185942a
JA		 2120 if (parser_state & PST_CMDSUBST)
2121 parser_state |= PST_EOFTOKEN;
f73dda09 2122 YYACCEPT;
3185942a
JA		 2123 }
2124 break;
2125
2126 case 4:
ca6a2ba4 2127#line 403 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2128 {
f73dda09
JA		 2129 /* Error during parsing. Return NULL command. */
2130 global_command = (COMMAND *)NULL;
2131 eof_encountered = 0;
7117c2d2 2132 /* discard_parser_constructs (1); */
3185942a 2133 if (interactive && parse_and_execute_level == 0)
f73dda09
JA		 2134 {
2135 YYACCEPT;
2136 }
2137 else
2138 {
2139 YYABORT;
2140 }
3185942a
JA		 2141 }
2142 break;
2143
2144 case 5:
ca6a2ba4 2145#line 418 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2146 {
f73dda09
JA		 2147 /* Case of EOF seen by itself. Do ignoreeof or
2148 not. */
2149 global_command = (COMMAND *)NULL;
2150 handle_eof_input_unit ();
2151 YYACCEPT;
3185942a
JA		 2152 }
2153 break;
2154
2155 case 6:
ca6a2ba4 2156#line 428 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2157 { (yyval.word_list) = make_word_list ((yyvsp[(1) - (1)].word), (WORD_LIST *)NULL); }
2158 break;
2159
2160 case 7:
ca6a2ba4 2161#line 430 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2162 { (yyval.word_list) = make_word_list ((yyvsp[(2) - (2)].word), (yyvsp[(1) - (2)].word_list)); }
2163 break;
2164
2165 case 8:
ca6a2ba4 2166#line 434 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2167 {
0001803f 2168 source.dest = 1;
3185942a 2169 redir.filename = (yyvsp[(2) - (2)].word);
0001803f 2170 (yyval.redirect) = make_redirection (source, r_output_direction, redir, 0);
3185942a
JA		 2171 }
2172 break;
2173
2174 case 9:
ca6a2ba4 2175#line 440 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2176 {
0001803f 2177 source.dest = 0;
3185942a 2178 redir.filename = (yyvsp[(2) - (2)].word);
0001803f 2179 (yyval.redirect) = make_redirection (source, r_input_direction, redir, 0);
3185942a
JA		 2180 }
2181 break;
2182
2183 case 10:
ca6a2ba4 2184#line 446 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2185 {
0001803f 2186 source.dest = (yyvsp[(1) - (3)].number);
3185942a 2187 redir.filename = (yyvsp[(3) - (3)].word);
0001803f 2188 (yyval.redirect) = make_redirection (source, r_output_direction, redir, 0);
3185942a
JA		 2189 }
2190 break;
2191
2192 case 11:
ca6a2ba4 2193#line 452 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2194 {
0001803f 2195 source.dest = (yyvsp[(1) - (3)].number);
3185942a 2196 redir.filename = (yyvsp[(3) - (3)].word);
0001803f 2197 (yyval.redirect) = make_redirection (source, r_input_direction, redir, 0);
3185942a
JA		 2198 }
2199 break;
2200
2201 case 12:
ca6a2ba4 2202#line 458 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2203 {
0001803f
CR		 2204 source.filename = (yyvsp[(1) - (3)].word);
2205 redir.filename = (yyvsp[(3) - (3)].word);
2206 (yyval.redirect) = make_redirection (source, r_output_direction, redir, REDIR_VARASSIGN);
3185942a
JA		 2207 }
2208 break;
2209
2210 case 13:
ca6a2ba4 2211#line 464 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2212 {
0001803f 2213 source.filename = (yyvsp[(1) - (3)].word);
3185942a 2214 redir.filename = (yyvsp[(3) - (3)].word);
0001803f 2215 (yyval.redirect) = make_redirection (source, r_input_direction, redir, REDIR_VARASSIGN);
3185942a
JA		 2216 }
2217 break;
2218
2219 case 14:
ca6a2ba4 2220#line 470 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2221 {
0001803f 2222 source.dest = 1;
3185942a 2223 redir.filename = (yyvsp[(2) - (2)].word);
0001803f 2224 (yyval.redirect) = make_redirection (source, r_appending_to, redir, 0);
3185942a
JA		 2225 }
2226 break;
2227
2228 case 15:
ca6a2ba4 2229#line 476 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2230 {
0001803f 2231 source.dest = (yyvsp[(1) - (3)].number);
3185942a 2232 redir.filename = (yyvsp[(3) - (3)].word);
0001803f 2233 (yyval.redirect) = make_redirection (source, r_appending_to, redir, 0);
3185942a
JA		 2234 }
2235 break;
2236
2237 case 16:
ca6a2ba4 2238#line 482 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2239 {
0001803f
CR		 2240 source.filename = (yyvsp[(1) - (3)].word);
2241 redir.filename = (yyvsp[(3) - (3)].word);
2242 (yyval.redirect) = make_redirection (source, r_appending_to, redir, REDIR_VARASSIGN);
3185942a
JA		 2243 }
2244 break;
2245
2246 case 17:
ca6a2ba4 2247#line 488 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2248 {
0001803f
CR		 2249 source.dest = 1;
2250 redir.filename = (yyvsp[(2) - (2)].word);
2251 (yyval.redirect) = make_redirection (source, r_output_force, redir, 0);
3185942a
JA		 2252 }
2253 break;
2254
2255 case 18:
ca6a2ba4 2256#line 494 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2257 {
0001803f
CR		 2258 source.dest = (yyvsp[(1) - (3)].number);
2259 redir.filename = (yyvsp[(3) - (3)].word);
2260 (yyval.redirect) = make_redirection (source, r_output_force, redir, 0);
3185942a
JA		 2261 }
2262 break;
2263
2264 case 19:
ca6a2ba4 2265#line 500 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2266 {
0001803f
CR		 2267 source.filename = (yyvsp[(1) - (3)].word);
2268 redir.filename = (yyvsp[(3) - (3)].word);
2269 (yyval.redirect) = make_redirection (source, r_output_force, redir, REDIR_VARASSIGN);
3185942a
JA		 2270 }
2271 break;
2272
2273 case 20:
ca6a2ba4 2274#line 506 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2275 {
0001803f
CR		 2276 source.dest = 0;
2277 redir.filename = (yyvsp[(2) - (2)].word);
2278 (yyval.redirect) = make_redirection (source, r_input_output, redir, 0);
3185942a
JA		 2279 }
2280 break;
2281
2282 case 21:
ca6a2ba4 2283#line 512 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2284 {
0001803f
CR		 2285 source.dest = (yyvsp[(1) - (3)].number);
2286 redir.filename = (yyvsp[(3) - (3)].word);
2287 (yyval.redirect) = make_redirection (source, r_input_output, redir, 0);
3185942a
JA		 2288 }
2289 break;
2290
2291 case 22:
ca6a2ba4 2292#line 518 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2293 {
0001803f
CR		 2294 source.filename = (yyvsp[(1) - (3)].word);
2295 redir.filename = (yyvsp[(3) - (3)].word);
2296 (yyval.redirect) = make_redirection (source, r_input_output, redir, REDIR_VARASSIGN);
3185942a
JA		 2297 }
2298 break;
2299
2300 case 23:
ca6a2ba4 2301#line 524 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2302 {
0001803f
CR		 2303 source.dest = 0;
2304 redir.filename = (yyvsp[(2) - (2)].word);
2305 (yyval.redirect) = make_redirection (source, r_reading_until, redir, 0);
90a39f32 2306 push_heredoc ((yyval.redirect));
3185942a
JA		 2307 }
2308 break;
2309
2310 case 24:
ca6a2ba4 2311#line 531 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2312 {
0001803f
CR		 2313 source.dest = (yyvsp[(1) - (3)].number);
2314 redir.filename = (yyvsp[(3) - (3)].word);
2315 (yyval.redirect) = make_redirection (source, r_reading_until, redir, 0);
90a39f32 2316 push_heredoc ((yyval.redirect));
3185942a
JA		 2317 }
2318 break;
2319
2320 case 25:
ca6a2ba4 2321#line 538 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2322 {
0001803f 2323 source.filename = (yyvsp[(1) - (3)].word);
3185942a 2324 redir.filename = (yyvsp[(3) - (3)].word);
0001803f 2325 (yyval.redirect) = make_redirection (source, r_reading_until, redir, REDIR_VARASSIGN);
90a39f32 2326 push_heredoc ((yyval.redirect));
3185942a
JA		 2327 }
2328 break;
2329
2330 case 26:
ca6a2ba4 2331#line 545 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2332 {
0001803f 2333 source.dest = 0;
3185942a 2334 redir.filename = (yyvsp[(2) - (2)].word);
0001803f 2335 (yyval.redirect) = make_redirection (source, r_deblank_reading_until, redir, 0);
90a39f32 2336 push_heredoc ((yyval.redirect));
3185942a
JA		 2337 }
2338 break;
2339
2340 case 27:
ca6a2ba4 2341#line 552 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2342 {
0001803f 2343 source.dest = (yyvsp[(1) - (3)].number);
3185942a 2344 redir.filename = (yyvsp[(3) - (3)].word);
0001803f 2345 (yyval.redirect) = make_redirection (source, r_deblank_reading_until, redir, 0);
90a39f32 2346 push_heredoc ((yyval.redirect));
3185942a
JA		 2347 }
2348 break;
2349
2350 case 28:
ca6a2ba4 2351#line 559 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2352 {
0001803f
CR		 2353 source.filename = (yyvsp[(1) - (3)].word);
2354 redir.filename = (yyvsp[(3) - (3)].word);
2355 (yyval.redirect) = make_redirection (source, r_deblank_reading_until, redir, REDIR_VARASSIGN);
90a39f32 2356 push_heredoc ((yyval.redirect));
3185942a
JA		 2357 }
2358 break;
2359
2360 case 29:
ca6a2ba4 2361#line 566 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2362 {
0001803f
CR		 2363 source.dest = 0;
2364 redir.filename = (yyvsp[(2) - (2)].word);
2365 (yyval.redirect) = make_redirection (source, r_reading_string, redir, 0);
3185942a
JA		 2366 }
2367 break;
2368
2369 case 30:
ca6a2ba4 2370#line 572 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2371 {
0001803f
CR		 2372 source.dest = (yyvsp[(1) - (3)].number);
2373 redir.filename = (yyvsp[(3) - (3)].word);
2374 (yyval.redirect) = make_redirection (source, r_reading_string, redir, 0);
3185942a
JA		 2375 }
2376 break;
2377
2378 case 31:
ca6a2ba4 2379#line 578 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2380 {
0001803f
CR		 2381 source.filename = (yyvsp[(1) - (3)].word);
2382 redir.filename = (yyvsp[(3) - (3)].word);
2383 (yyval.redirect) = make_redirection (source, r_reading_string, redir, REDIR_VARASSIGN);
3185942a
JA		 2384 }
2385 break;
2386
2387 case 32:
ca6a2ba4 2388#line 584 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2389 {
0001803f
CR		 2390 source.dest = 0;
2391 redir.dest = (yyvsp[(2) - (2)].number);
2392 (yyval.redirect) = make_redirection (source, r_duplicating_input, redir, 0);
3185942a
JA		 2393 }
2394 break;
2395
2396 case 33:
ca6a2ba4 2397#line 590 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2398 {
0001803f
CR		 2399 source.dest = (yyvsp[(1) - (3)].number);
2400 redir.dest = (yyvsp[(3) - (3)].number);
2401 (yyval.redirect) = make_redirection (source, r_duplicating_input, redir, 0);
3185942a
JA		 2402 }
2403 break;
2404
2405 case 34:
ca6a2ba4 2406#line 596 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2407 {
0001803f
CR		 2408 source.filename = (yyvsp[(1) - (3)].word);
2409 redir.dest = (yyvsp[(3) - (3)].number);
2410 (yyval.redirect) = make_redirection (source, r_duplicating_input, redir, REDIR_VARASSIGN);
3185942a
JA		 2411 }
2412 break;
2413
2414 case 35:
ca6a2ba4 2415#line 602 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2416 {
0001803f
CR		 2417 source.dest = 1;
2418 redir.dest = (yyvsp[(2) - (2)].number);
2419 (yyval.redirect) = make_redirection (source, r_duplicating_output, redir, 0);
3185942a
JA		 2420 }
2421 break;
2422
2423 case 36:
ca6a2ba4 2424#line 608 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2425 {
0001803f
CR		 2426 source.dest = (yyvsp[(1) - (3)].number);
2427 redir.dest = (yyvsp[(3) - (3)].number);
2428 (yyval.redirect) = make_redirection (source, r_duplicating_output, redir, 0);
3185942a
JA		 2429 }
2430 break;
2431
2432 case 37:
ca6a2ba4 2433#line 614 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2434 {
0001803f
CR		 2435 source.filename = (yyvsp[(1) - (3)].word);
2436 redir.dest = (yyvsp[(3) - (3)].number);
2437 (yyval.redirect) = make_redirection (source, r_duplicating_output, redir, REDIR_VARASSIGN);
3185942a
JA		 2438 }
2439 break;
2440
2441 case 38:
ca6a2ba4 2442#line 620 "/usr/src/local/bash/bash-4.3-patched/parse.y"
0001803f
CR		 2443 {
2444 source.dest = 0;
2445 redir.filename = (yyvsp[(2) - (2)].word);
2446 (yyval.redirect) = make_redirection (source, r_duplicating_input_word, redir, 0);
2447 }
3185942a
JA		 2448 break;
2449
2450 case 39:
ca6a2ba4 2451#line 626 "/usr/src/local/bash/bash-4.3-patched/parse.y"
0001803f
CR		 2452 {
2453 source.dest = (yyvsp[(1) - (3)].number);
2454 redir.filename = (yyvsp[(3) - (3)].word);
2455 (yyval.redirect) = make_redirection (source, r_duplicating_input_word, redir, 0);
2456 }
3185942a
JA		 2457 break;
2458
2459 case 40:
ca6a2ba4 2460#line 632 "/usr/src/local/bash/bash-4.3-patched/parse.y"
0001803f
CR		 2461 {
2462 source.filename = (yyvsp[(1) - (3)].word);
2463 redir.filename = (yyvsp[(3) - (3)].word);
2464 (yyval.redirect) = make_redirection (source, r_duplicating_input_word, redir, REDIR_VARASSIGN);
2465 }
3185942a
JA		 2466 break;
2467
2468 case 41:
ca6a2ba4 2469#line 638 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2470 {
0001803f
CR		 2471 source.dest = 1;
2472 redir.filename = (yyvsp[(2) - (2)].word);
2473 (yyval.redirect) = make_redirection (source, r_duplicating_output_word, redir, 0);
3185942a
JA		 2474 }
2475 break;
2476
2477 case 42:
ca6a2ba4 2478#line 644 "/usr/src/local/bash/bash-4.3-patched/parse.y"
0001803f
CR		 2479 {
2480 source.dest = (yyvsp[(1) - (3)].number);
2481 redir.filename = (yyvsp[(3) - (3)].word);
2482 (yyval.redirect) = make_redirection (source, r_duplicating_output_word, redir, 0);
2483 }
2484 break;
2485
2486 case 43:
ca6a2ba4 2487#line 650 "/usr/src/local/bash/bash-4.3-patched/parse.y"
0001803f
CR		 2488 {
2489 source.filename = (yyvsp[(1) - (3)].word);
2490 redir.filename = (yyvsp[(3) - (3)].word);
2491 (yyval.redirect) = make_redirection (source, r_duplicating_output_word, redir, REDIR_VARASSIGN);
2492 }
2493 break;
2494
2495 case 44:
ca6a2ba4 2496#line 656 "/usr/src/local/bash/bash-4.3-patched/parse.y"
0001803f
CR		 2497 {
2498 source.dest = 1;
2499 redir.dest = 0;
2500 (yyval.redirect) = make_redirection (source, r_close_this, redir, 0);
2501 }
2502 break;
2503
2504 case 45:
ca6a2ba4 2505#line 662 "/usr/src/local/bash/bash-4.3-patched/parse.y"
0001803f
CR		 2506 {
2507 source.dest = (yyvsp[(1) - (3)].number);
2508 redir.dest = 0;
2509 (yyval.redirect) = make_redirection (source, r_close_this, redir, 0);
2510 }
2511 break;
2512
2513 case 46:
ca6a2ba4 2514#line 668 "/usr/src/local/bash/bash-4.3-patched/parse.y"
0001803f
CR		 2515 {
2516 source.filename = (yyvsp[(1) - (3)].word);
2517 redir.dest = 0;
2518 (yyval.redirect) = make_redirection (source, r_close_this, redir, REDIR_VARASSIGN);
2519 }
2520 break;
2521
2522 case 47:
ca6a2ba4 2523#line 674 "/usr/src/local/bash/bash-4.3-patched/parse.y"
0001803f
CR		 2524 {
2525 source.dest = 0;
2526 redir.dest = 0;
2527 (yyval.redirect) = make_redirection (source, r_close_this, redir, 0);
2528 }
2529 break;
2530
2531 case 48:
ca6a2ba4 2532#line 680 "/usr/src/local/bash/bash-4.3-patched/parse.y"
0001803f
CR		 2533 {
2534 source.dest = (yyvsp[(1) - (3)].number);
2535 redir.dest = 0;
2536 (yyval.redirect) = make_redirection (source, r_close_this, redir, 0);
2537 }
2538 break;
2539
2540 case 49:
ca6a2ba4 2541#line 686 "/usr/src/local/bash/bash-4.3-patched/parse.y"
0001803f
CR		 2542 {
2543 source.filename = (yyvsp[(1) - (3)].word);
2544 redir.dest = 0;
2545 (yyval.redirect) = make_redirection (source, r_close_this, redir, REDIR_VARASSIGN);
2546 }
2547 break;
2548
2549 case 50:
ca6a2ba4 2550#line 692 "/usr/src/local/bash/bash-4.3-patched/parse.y"
0001803f
CR		 2551 {
2552 source.dest = 1;
2553 redir.filename = (yyvsp[(2) - (2)].word);
2554 (yyval.redirect) = make_redirection (source, r_err_and_out, redir, 0);
2555 }
2556 break;
2557
2558 case 51:
ca6a2ba4 2559#line 698 "/usr/src/local/bash/bash-4.3-patched/parse.y"
0001803f
CR		 2560 {
2561 source.dest = 1;
2562 redir.filename = (yyvsp[(2) - (2)].word);
2563 (yyval.redirect) = make_redirection (source, r_append_err_and_out, redir, 0);
2564 }
2565 break;
2566
2567 case 52:
ca6a2ba4 2568#line 706 "/usr/src/local/bash/bash-4.3-patched/parse.y"
0001803f
CR		 2569 { (yyval.element).word = (yyvsp[(1) - (1)].word); (yyval.element).redirect = 0; }
2570 break;
2571
2572 case 53:
ca6a2ba4 2573#line 708 "/usr/src/local/bash/bash-4.3-patched/parse.y"
0001803f
CR		 2574 { (yyval.element).word = (yyvsp[(1) - (1)].word); (yyval.element).redirect = 0; }
2575 break;
2576
2577 case 54:
ca6a2ba4 2578#line 710 "/usr/src/local/bash/bash-4.3-patched/parse.y"
0001803f
CR		 2579 { (yyval.element).redirect = (yyvsp[(1) - (1)].redirect); (yyval.element).word = 0; }
2580 break;
2581
2582 case 55:
ca6a2ba4 2583#line 714 "/usr/src/local/bash/bash-4.3-patched/parse.y"
0001803f
CR		 2584 {
2585 (yyval.redirect) = (yyvsp[(1) - (1)].redirect);
2586 }
2587 break;
2588
2589 case 56:
ca6a2ba4 2590#line 718 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2591 {
f73dda09
JA		 2592 register REDIRECT *t;
2593
3185942a 2594 for (t = (yyvsp[(1) - (2)].redirect); t->next; t = t->next)
f73dda09 2595 ;
3185942a
JA		 2596 t->next = (yyvsp[(2) - (2)].redirect);
2597 (yyval.redirect) = (yyvsp[(1) - (2)].redirect);
2598 }
2599 break;
2600
0001803f 2601 case 57:
ca6a2ba4 2602#line 729 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2603 { (yyval.command) = make_simple_command ((yyvsp[(1) - (1)].element), (COMMAND *)NULL); }
2604 break;
2605
0001803f 2606 case 58:
ca6a2ba4 2607#line 731 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2608 { (yyval.command) = make_simple_command ((yyvsp[(2) - (2)].element), (yyvsp[(1) - (2)].command)); }
2609 break;
2610
0001803f 2611 case 59:
ca6a2ba4 2612#line 735 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2613 { (yyval.command) = clean_simple_command ((yyvsp[(1) - (1)].command)); }
2614 break;
2615
0001803f 2616 case 60:
ca6a2ba4 2617#line 737 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2618 { (yyval.command) = (yyvsp[(1) - (1)].command); }
2619 break;
2620
0001803f 2621 case 61:
ca6a2ba4 2622#line 739 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2623 {
f73dda09
JA		 2624 COMMAND *tc;
2625
3185942a 2626 tc = (yyvsp[(1) - (2)].command);
f73dda09
JA		 2627 if (tc->redirects)
2628 {
2629 register REDIRECT *t;
2630 for (t = tc->redirects; t->next; t = t->next)
2631 ;
3185942a 2632 t->next = (yyvsp[(2) - (2)].redirect);
f73dda09
JA		 2633 }
2634 else
3185942a
JA		 2635 tc->redirects = (yyvsp[(2) - (2)].redirect);
2636 (yyval.command) = (yyvsp[(1) - (2)].command);
2637 }
2638 break;
2639
0001803f 2640 case 62:
ca6a2ba4 2641#line 755 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2642 { (yyval.command) = (yyvsp[(1) - (1)].command); }
2643 break;
2644
0001803f 2645 case 63:
ca6a2ba4 2646#line 757 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2647 { (yyval.command) = (yyvsp[(1) - (1)].command); }
2648 break;
2649
0001803f 2650 case 64:
ca6a2ba4 2651#line 761 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2652 { (yyval.command) = (yyvsp[(1) - (1)].command); }
2653 break;
2654
0001803f 2655 case 65:
ca6a2ba4 2656#line 763 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2657 { (yyval.command) = (yyvsp[(1) - (1)].command); }
2658 break;
2659
0001803f 2660 case 66:
ca6a2ba4 2661#line 765 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2662 { (yyval.command) = make_while_command ((yyvsp[(2) - (5)].command), (yyvsp[(4) - (5)].command)); }
2663 break;
2664
0001803f 2665 case 67:
ca6a2ba4 2666#line 767 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2667 { (yyval.command) = make_until_command ((yyvsp[(2) - (5)].command), (yyvsp[(4) - (5)].command)); }
2668 break;
2669
0001803f 2670 case 68:
ca6a2ba4 2671#line 769 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2672 { (yyval.command) = (yyvsp[(1) - (1)].command); }
2673 break;
2674
0001803f 2675 case 69:
ca6a2ba4 2676#line 771 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2677 { (yyval.command) = (yyvsp[(1) - (1)].command); }
2678 break;
2679
0001803f 2680 case 70:
ca6a2ba4 2681#line 773 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2682 { (yyval.command) = (yyvsp[(1) - (1)].command); }
2683 break;
2684
0001803f 2685 case 71:
ca6a2ba4 2686#line 775 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2687 { (yyval.command) = (yyvsp[(1) - (1)].command); }
2688 break;
2689
0001803f 2690 case 72:
ca6a2ba4 2691#line 777 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2692 { (yyval.command) = (yyvsp[(1) - (1)].command); }
2693 break;
2694
0001803f 2695 case 73:
ca6a2ba4 2696#line 779 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2697 { (yyval.command) = (yyvsp[(1) - (1)].command); }
2698 break;
2699
0001803f 2700 case 74:
ca6a2ba4 2701#line 781 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2702 { (yyval.command) = (yyvsp[(1) - (1)].command); }
2703 break;
2704
0001803f 2705 case 75:
ca6a2ba4 2706#line 785 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2707 {
2708 (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 2709 if (word_top > 0) word_top--;
3185942a
JA		 2710 }
2711 break;
2712
0001803f 2713 case 76:
ca6a2ba4 2714#line 790 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2715 {
2716 (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 2717 if (word_top > 0) word_top--;
3185942a
JA		 2718 }
2719 break;
2720
0001803f 2721 case 77:
ca6a2ba4 2722#line 795 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2723 {
2724 (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 2725 if (word_top > 0) word_top--;
3185942a
JA		 2726 }
2727 break;
2728
0001803f 2729 case 78:
ca6a2ba4 2730#line 800 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2731 {
2732 (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 2733 if (word_top > 0) word_top--;
3185942a
JA		 2734 }
2735 break;
2736
0001803f 2737 case 79:
ca6a2ba4 2738#line 805 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2739 {
2740 (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 2741 if (word_top > 0) word_top--;
3185942a
JA		 2742 }
2743 break;
2744
0001803f 2745 case 80:
ca6a2ba4 2746#line 810 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2747 {
2748 (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 2749 if (word_top > 0) word_top--;
3185942a
JA		 2750 }
2751 break;
2752
0001803f 2753 case 81:
ca6a2ba4 2754#line 815 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2755 {
2756 (yyval.command) = make_for_command ((yyvsp[(2) - (9)].word), (WORD_LIST *)NULL, (yyvsp[(8) - (9)].command), word_lineno[word_top]);
b80f6443 2757 if (word_top > 0) word_top--;
3185942a
JA		 2758 }
2759 break;
2760
0001803f 2761 case 82:
ca6a2ba4 2762#line 820 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2763 {
2764 (yyval.command) = make_for_command ((yyvsp[(2) - (9)].word), (WORD_LIST *)NULL, (yyvsp[(8) - (9)].command), word_lineno[word_top]);
b80f6443 2765 if (word_top > 0) word_top--;
3185942a
JA		 2766 }
2767 break;
2768
0001803f 2769 case 83:
ca6a2ba4 2770#line 827 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2771 {
2772 (yyval.command) = make_arith_for_command ((yyvsp[(2) - (7)].word_list), (yyvsp[(6) - (7)].command), arith_for_lineno);
b80f6443 2773 if (word_top > 0) word_top--;
3185942a
JA		 2774 }
2775 break;
2776
0001803f 2777 case 84:
ca6a2ba4 2778#line 832 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2779 {
2780 (yyval.command) = make_arith_for_command ((yyvsp[(2) - (7)].word_list), (yyvsp[(6) - (7)].command), arith_for_lineno);
b80f6443 2781 if (word_top > 0) word_top--;
3185942a
JA		 2782 }
2783 break;
2784
0001803f 2785 case 85:
ca6a2ba4 2786#line 837 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2787 {
2788 (yyval.command) = make_arith_for_command ((yyvsp[(2) - (5)].word_list), (yyvsp[(4) - (5)].command), arith_for_lineno);
b80f6443 2789 if (word_top > 0) word_top--;
3185942a
JA		 2790 }
2791 break;
2792
0001803f 2793 case 86:
ca6a2ba4 2794#line 842 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2795 {
2796 (yyval.command) = make_arith_for_command ((yyvsp[(2) - (5)].word_list), (yyvsp[(4) - (5)].command), arith_for_lineno);
b80f6443 2797 if (word_top > 0) word_top--;
3185942a
JA		 2798 }
2799 break;
2800
0001803f 2801 case 87:
ca6a2ba4 2802#line 849 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2803 {
2804 (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 2805 if (word_top > 0) word_top--;
3185942a
JA		 2806 }
2807 break;
2808
0001803f 2809 case 88:
ca6a2ba4 2810#line 854 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2811 {
2812 (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 2813 if (word_top > 0) word_top--;
3185942a
JA		 2814 }
2815 break;
2816
0001803f 2817 case 89:
ca6a2ba4 2818#line 859 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2819 {
2820 (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 2821 if (word_top > 0) word_top--;
3185942a
JA		 2822 }
2823 break;
2824
0001803f 2825 case 90:
ca6a2ba4 2826#line 864 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2827 {
2828 (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 2829 if (word_top > 0) word_top--;
3185942a
JA		 2830 }
2831 break;
2832
0001803f 2833 case 91:
ca6a2ba4 2834#line 869 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2835 {
2836 (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 2837 if (word_top > 0) word_top--;
3185942a
JA		 2838 }
2839 break;
2840
0001803f 2841 case 92:
ca6a2ba4 2842#line 874 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2843 {
2844 (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 2845 if (word_top > 0) word_top--;
3185942a
JA		 2846 }
2847 break;
2848
0001803f 2849 case 93:
ca6a2ba4 2850#line 881 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2851 {
2852 (yyval.command) = make_case_command ((yyvsp[(2) - (6)].word), (PATTERN_LIST *)NULL, word_lineno[word_top]);
b80f6443 2853 if (word_top > 0) word_top--;
3185942a
JA		 2854 }
2855 break;
2856
0001803f 2857 case 94:
ca6a2ba4 2858#line 886 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2859 {
2860 (yyval.command) = make_case_command ((yyvsp[(2) - (7)].word), (yyvsp[(5) - (7)].pattern), word_lineno[word_top]);
b80f6443 2861 if (word_top > 0) word_top--;
3185942a
JA		 2862 }
2863 break;
2864
0001803f 2865 case 95:
ca6a2ba4 2866#line 891 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2867 {
2868 (yyval.command) = make_case_command ((yyvsp[(2) - (6)].word), (yyvsp[(5) - (6)].pattern), word_lineno[word_top]);
b80f6443 2869 if (word_top > 0) word_top--;
3185942a
JA		 2870 }
2871 break;
2872
0001803f 2873 case 96:
ca6a2ba4 2874#line 898 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2875 { (yyval.command) = make_function_def ((yyvsp[(1) - (5)].word), (yyvsp[(5) - (5)].command), function_dstart, function_bstart); }
2876 break;
2877
0001803f 2878 case 97:
ca6a2ba4 2879#line 901 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2880 { (yyval.command) = make_function_def ((yyvsp[(2) - (6)].word), (yyvsp[(6) - (6)].command), function_dstart, function_bstart); }
2881 break;
2882
0001803f 2883 case 98:
ca6a2ba4 2884#line 904 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2885 { (yyval.command) = make_function_def ((yyvsp[(2) - (4)].word), (yyvsp[(4) - (4)].command), function_dstart, function_bstart); }
2886 break;
2887
0001803f 2888 case 99:
ca6a2ba4 2889#line 908 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2890 { (yyval.command) = (yyvsp[(1) - (1)].command); }
2891 break;
2892
0001803f 2893 case 100:
ca6a2ba4 2894#line 910 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 2895 {
f73dda09
JA		 2896 COMMAND *tc;
2897
3185942a 2898 tc = (yyvsp[(1) - (2)].command);
f73dda09
JA		 2899 /* According to Posix.2 3.9.5, redirections
2900 specified after the body of a function should
2901 be attached to the function and performed when
2902 the function is executed, not as part of the
2903 function definition command. */
2904 /* XXX - I don't think it matters, but we might
2905 want to change this in the future to avoid
2906 problems differentiating between a function
2907 definition with a redirection and a function
2908 definition containing a single command with a
2909 redirection. The two are semantically equivalent,
2910 though -- the only difference is in how the
2911 command printing code displays the redirections. */
2912 if (tc->redirects)
2913 {
2914 register REDIRECT *t;
2915 for (t = tc->redirects; t->next; t = t->next)
2916 ;
3185942a 2917 t->next = (yyvsp[(2) - (2)].redirect);
f73dda09
JA		 2918 }
2919 else
3185942a
JA		 2920 tc->redirects = (yyvsp[(2) - (2)].redirect);
2921 (yyval.command) = (yyvsp[(1) - (2)].command);
2922 }
2923 break;
2924
0001803f 2925 case 101:
ca6a2ba4 2926#line 941 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2927 {
2928 (yyval.command) = make_subshell_command ((yyvsp[(2) - (3)].command));
2929 (yyval.command)->flags |= CMD_WANT_SUBSHELL;
2930 }
2931 break;
2932
0001803f 2933 case 102:
ca6a2ba4 2934#line 948 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2935 {
2936 (yyval.command) = make_coproc_command ("COPROC", (yyvsp[(2) - (2)].command));
2937 (yyval.command)->flags |= CMD_WANT_SUBSHELL|CMD_COPROC_SUBSHELL;
2938 }
2939 break;
2940
0001803f 2941 case 103:
ca6a2ba4 2942#line 953 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2943 {
2944 COMMAND *tc;
2945
2946 tc = (yyvsp[(2) - (3)].command);
2947 if (tc->redirects)
2948 {
2949 register REDIRECT *t;
2950 for (t = tc->redirects; t->next; t = t->next)
2951 ;
2952 t->next = (yyvsp[(3) - (3)].redirect);
2953 }
2954 else
2955 tc->redirects = (yyvsp[(3) - (3)].redirect);
2956 (yyval.command) = make_coproc_command ("COPROC", (yyvsp[(2) - (3)].command));
2957 (yyval.command)->flags |= CMD_WANT_SUBSHELL|CMD_COPROC_SUBSHELL;
2958 }
2959 break;
2960
0001803f 2961 case 104:
ca6a2ba4 2962#line 970 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2963 {
2964 (yyval.command) = make_coproc_command ((yyvsp[(2) - (3)].word)->word, (yyvsp[(3) - (3)].command));
2965 (yyval.command)->flags |= CMD_WANT_SUBSHELL|CMD_COPROC_SUBSHELL;
2966 }
2967 break;
2968
0001803f 2969 case 105:
ca6a2ba4 2970#line 975 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2971 {
2972 COMMAND *tc;
2973
2974 tc = (yyvsp[(3) - (4)].command);
2975 if (tc->redirects)
2976 {
2977 register REDIRECT *t;
2978 for (t = tc->redirects; t->next; t = t->next)
2979 ;
2980 t->next = (yyvsp[(4) - (4)].redirect);
2981 }
2982 else
2983 tc->redirects = (yyvsp[(4) - (4)].redirect);
2984 (yyval.command) = make_coproc_command ((yyvsp[(2) - (4)].word)->word, (yyvsp[(3) - (4)].command));
2985 (yyval.command)->flags |= CMD_WANT_SUBSHELL|CMD_COPROC_SUBSHELL;
2986 }
2987 break;
2988
0001803f 2989 case 106:
ca6a2ba4 2990#line 992 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2991 {
2992 (yyval.command) = make_coproc_command ("COPROC", clean_simple_command ((yyvsp[(2) - (2)].command)));
2993 (yyval.command)->flags |= CMD_WANT_SUBSHELL|CMD_COPROC_SUBSHELL;
2994 }
2995 break;
2996
0001803f 2997 case 107:
ca6a2ba4 2998#line 999 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 2999 { (yyval.command) = make_if_command ((yyvsp[(2) - (5)].command), (yyvsp[(4) - (5)].command), (COMMAND *)NULL); }
3000 break;
3001
0001803f 3002 case 108:
ca6a2ba4 3003#line 1001 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3004 { (yyval.command) = make_if_command ((yyvsp[(2) - (7)].command), (yyvsp[(4) - (7)].command), (yyvsp[(6) - (7)].command)); }
3005 break;
3006
0001803f 3007 case 109:
ca6a2ba4 3008#line 1003 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3009 { (yyval.command) = make_if_command ((yyvsp[(2) - (6)].command), (yyvsp[(4) - (6)].command), (yyvsp[(5) - (6)].command)); }
3010 break;
3011
0001803f 3012 case 110:
ca6a2ba4 3013#line 1008 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3014 { (yyval.command) = make_group_command ((yyvsp[(2) - (3)].command)); }
3015 break;
3016
0001803f 3017 case 111:
ca6a2ba4 3018#line 1012 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3019 { (yyval.command) = make_arith_command ((yyvsp[(1) - (1)].word_list)); }
3020 break;
3021
0001803f 3022 case 112:
ca6a2ba4 3023#line 1016 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3024 { (yyval.command) = (yyvsp[(2) - (3)].command); }
3025 break;
3026
0001803f 3027 case 113:
ca6a2ba4 3028#line 1020 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3029 { (yyval.command) = make_if_command ((yyvsp[(2) - (4)].command), (yyvsp[(4) - (4)].command), (COMMAND *)NULL); }
3030 break;
3031
0001803f 3032 case 114:
ca6a2ba4 3033#line 1022 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3034 { (yyval.command) = make_if_command ((yyvsp[(2) - (6)].command), (yyvsp[(4) - (6)].command), (yyvsp[(6) - (6)].command)); }
3035 break;
3036
0001803f 3037 case 115:
ca6a2ba4 3038#line 1024 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3039 { (yyval.command) = make_if_command ((yyvsp[(2) - (5)].command), (yyvsp[(4) - (5)].command), (yyvsp[(5) - (5)].command)); }
3040 break;
3041
0001803f 3042 case 117:
ca6a2ba4 3043#line 1029 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3044 { (yyvsp[(2) - (2)].pattern)->next = (yyvsp[(1) - (2)].pattern); (yyval.pattern) = (yyvsp[(2) - (2)].pattern); }
3045 break;
3046
0001803f 3047 case 118:
ca6a2ba4 3048#line 1033 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3049 { (yyval.pattern) = make_pattern_list ((yyvsp[(2) - (4)].word_list), (yyvsp[(4) - (4)].command)); }
3050 break;
3051
0001803f 3052 case 119:
ca6a2ba4 3053#line 1035 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3054 { (yyval.pattern) = make_pattern_list ((yyvsp[(2) - (4)].word_list), (COMMAND *)NULL); }
3055 break;
3056
0001803f 3057 case 120:
ca6a2ba4 3058#line 1037 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3059 { (yyval.pattern) = make_pattern_list ((yyvsp[(3) - (5)].word_list), (yyvsp[(5) - (5)].command)); }
3060 break;
3061
0001803f 3062 case 121:
ca6a2ba4 3063#line 1039 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3064 { (yyval.pattern) = make_pattern_list ((yyvsp[(3) - (5)].word_list), (COMMAND *)NULL); }
3065 break;
3066
0001803f 3067 case 122:
ca6a2ba4 3068#line 1043 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3069 { (yyval.pattern) = (yyvsp[(1) - (2)].pattern); }
3070 break;
3071
0001803f 3072 case 123:
ca6a2ba4 3073#line 1045 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3074 { (yyvsp[(2) - (3)].pattern)->next = (yyvsp[(1) - (3)].pattern); (yyval.pattern) = (yyvsp[(2) - (3)].pattern); }
3075 break;
3076
0001803f 3077 case 124:
ca6a2ba4 3078#line 1047 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3079 { (yyvsp[(1) - (2)].pattern)->flags |= CASEPAT_FALLTHROUGH; (yyval.pattern) = (yyvsp[(1) - (2)].pattern); }
3080 break;
3081
0001803f 3082 case 125:
ca6a2ba4 3083#line 1049 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3084 { (yyvsp[(2) - (3)].pattern)->flags |= CASEPAT_FALLTHROUGH; (yyvsp[(2) - (3)].pattern)->next = (yyvsp[(1) - (3)].pattern); (yyval.pattern) = (yyvsp[(2) - (3)].pattern); }
3085 break;
3086
0001803f 3087 case 126:
ca6a2ba4 3088#line 1051 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3089 { (yyvsp[(1) - (2)].pattern)->flags |= CASEPAT_TESTNEXT; (yyval.pattern) = (yyvsp[(1) - (2)].pattern); }
3090 break;
3091
0001803f 3092 case 127:
ca6a2ba4 3093#line 1053 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3094 { (yyvsp[(2) - (3)].pattern)->flags |= CASEPAT_TESTNEXT; (yyvsp[(2) - (3)].pattern)->next = (yyvsp[(1) - (3)].pattern); (yyval.pattern) = (yyvsp[(2) - (3)].pattern); }
3095 break;
3096
0001803f 3097 case 128:
ca6a2ba4 3098#line 1057 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3099 { (yyval.word_list) = make_word_list ((yyvsp[(1) - (1)].word), (WORD_LIST *)NULL); }
3100 break;
3101
0001803f 3102 case 129:
ca6a2ba4 3103#line 1059 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3104 { (yyval.word_list) = make_word_list ((yyvsp[(3) - (3)].word), (yyvsp[(1) - (3)].word_list)); }
3105 break;
3106
0001803f 3107 case 130:
ca6a2ba4 3108#line 1068 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3109 {
3110 (yyval.command) = (yyvsp[(2) - (2)].command);
f73dda09
JA		 3111 if (need_here_doc)
3112 gather_here_documents ();
3185942a
JA		 3113 }
3114 break;
3115
0001803f 3116 case 132:
ca6a2ba4 3117#line 1077 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3118 {
3119 (yyval.command) = (yyvsp[(2) - (2)].command);
3120 }
3121 break;
3122
0001803f 3123 case 134:
ca6a2ba4 3124#line 1084 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3125 {
3126 if ((yyvsp[(1) - (3)].command)->type == cm_connection)
3127 (yyval.command) = connect_async_list ((yyvsp[(1) - (3)].command), (COMMAND *)NULL, '&');
f73dda09 3128 else
3185942a
JA		 3129 (yyval.command) = command_connect ((yyvsp[(1) - (3)].command), (COMMAND *)NULL, '&');
3130 }
3131 break;
3132
0001803f 3133 case 136:
ca6a2ba4 3134#line 1095 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3135 { (yyval.command) = command_connect ((yyvsp[(1) - (4)].command), (yyvsp[(4) - (4)].command), AND_AND); }
3136 break;
3137
0001803f 3138 case 137:
ca6a2ba4 3139#line 1097 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3140 { (yyval.command) = command_connect ((yyvsp[(1) - (4)].command), (yyvsp[(4) - (4)].command), OR_OR); }
3141 break;
3142
0001803f 3143 case 138:
ca6a2ba4 3144#line 1099 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3145 {
3146 if ((yyvsp[(1) - (4)].command)->type == cm_connection)
3147 (yyval.command) = connect_async_list ((yyvsp[(1) - (4)].command), (yyvsp[(4) - (4)].command), '&');
f73dda09 3148 else
3185942a
JA		 3149 (yyval.command) = command_connect ((yyvsp[(1) - (4)].command), (yyvsp[(4) - (4)].command), '&');
3150 }
3151 break;
3152
0001803f 3153 case 139:
ca6a2ba4 3154#line 1106 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3155 { (yyval.command) = command_connect ((yyvsp[(1) - (4)].command), (yyvsp[(4) - (4)].command), ';'); }
3156 break;
3157
0001803f 3158 case 140:
ca6a2ba4 3159#line 1108 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3160 { (yyval.command) = command_connect ((yyvsp[(1) - (4)].command), (yyvsp[(4) - (4)].command), ';'); }
3161 break;
3162
0001803f 3163 case 141:
ca6a2ba4 3164#line 1110 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3165 { (yyval.command) = (yyvsp[(1) - (1)].command); }
3166 break;
3167
0001803f 3168 case 144:
ca6a2ba4 3169#line 1118 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3170 { (yyval.number) = '\n'; }
3171 break;
3172
0001803f 3173 case 145:
ca6a2ba4 3174#line 1120 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3175 { (yyval.number) = ';'; }
3176 break;
3177
0001803f 3178 case 146:
ca6a2ba4 3179#line 1122 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3180 { (yyval.number) = yacc_EOF; }
3181 break;
3182
0001803f 3183 case 149:
ca6a2ba4 3184#line 1136 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3185 {
3186 (yyval.command) = (yyvsp[(1) - (1)].command);
f73dda09
JA		 3187 if (need_here_doc)
3188 gather_here_documents ();
3185942a
JA		 3189 if ((parser_state & PST_CMDSUBST) && current_token == shell_eof_token)
3190 {
3191 global_command = (yyvsp[(1) - (1)].command);
3192 eof_encountered = 0;
3193 rewind_input_string ();
3194 YYACCEPT;
3195 }
3196 }
3197 break;
3198
0001803f 3199 case 150:
ca6a2ba4 3200#line 1149 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3201 {
3202 if ((yyvsp[(1) - (2)].command)->type == cm_connection)
3203 (yyval.command) = connect_async_list ((yyvsp[(1) - (2)].command), (COMMAND *)NULL, '&');
f73dda09 3204 else
3185942a 3205 (yyval.command) = command_connect ((yyvsp[(1) - (2)].command), (COMMAND *)NULL, '&');
f73dda09
JA		 3206 if (need_here_doc)
3207 gather_here_documents ();
3185942a
JA		 3208 if ((parser_state & PST_CMDSUBST) && current_token == shell_eof_token)
3209 {
3210 global_command = (yyvsp[(1) - (2)].command);
3211 eof_encountered = 0;
3212 rewind_input_string ();
3213 YYACCEPT;
3214 }
3215 }
3216 break;
3217
0001803f 3218 case 151:
ca6a2ba4 3219#line 1165 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3220 {
3221 (yyval.command) = (yyvsp[(1) - (2)].command);
f73dda09
JA		 3222 if (need_here_doc)
3223 gather_here_documents ();
3185942a
JA		 3224 if ((parser_state & PST_CMDSUBST) && current_token == shell_eof_token)
3225 {
3226 global_command = (yyvsp[(1) - (2)].command);
3227 eof_encountered = 0;
3228 rewind_input_string ();
3229 YYACCEPT;
3230 }
3231 }
3232 break;
3233
0001803f 3234 case 152:
ca6a2ba4 3235#line 1180 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3236 { (yyval.command) = command_connect ((yyvsp[(1) - (4)].command), (yyvsp[(4) - (4)].command), AND_AND); }
3237 break;
3238
0001803f 3239 case 153:
ca6a2ba4 3240#line 1182 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3241 { (yyval.command) = command_connect ((yyvsp[(1) - (4)].command), (yyvsp[(4) - (4)].command), OR_OR); }
3242 break;
3243
0001803f 3244 case 154:
ca6a2ba4 3245#line 1184 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3246 {
3247 if ((yyvsp[(1) - (3)].command)->type == cm_connection)
3248 (yyval.command) = connect_async_list ((yyvsp[(1) - (3)].command), (yyvsp[(3) - (3)].command), '&');
f73dda09 3249 else
3185942a
JA		 3250 (yyval.command) = command_connect ((yyvsp[(1) - (3)].command), (yyvsp[(3) - (3)].command), '&');
3251 }
3252 break;
3253
0001803f 3254 case 155:
ca6a2ba4 3255#line 1191 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3256 { (yyval.command) = command_connect ((yyvsp[(1) - (3)].command), (yyvsp[(3) - (3)].command), ';'); }
3257 break;
3258
0001803f 3259 case 156:
ca6a2ba4 3260#line 1194 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3261 { (yyval.command) = (yyvsp[(1) - (1)].command); }
3262 break;
3263
0001803f 3264 case 157:
ca6a2ba4 3265#line 1198 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3266 { (yyval.command) = (yyvsp[(1) - (1)].command); }
3267 break;
3268
0001803f 3269 case 158:
ca6a2ba4 3270#line 1200 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3271 {
3272 if ((yyvsp[(2) - (2)].command))
495aee44 3273 (yyvsp[(2) - (2)].command)->flags ^= CMD_INVERT_RETURN; /* toggle */
3185942a
JA		 3274 (yyval.command) = (yyvsp[(2) - (2)].command);
3275 }
3276 break;
3277
0001803f 3278 case 159:
ca6a2ba4 3279#line 1206 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3280 {
3281 if ((yyvsp[(2) - (2)].command))
3282 (yyvsp[(2) - (2)].command)->flags |= (yyvsp[(1) - (2)].number);
3283 (yyval.command) = (yyvsp[(2) - (2)].command);
3284 }
3285 break;
3286
0001803f 3287 case 160:
ca6a2ba4 3288#line 1212 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 3289 {
495aee44 3290 ELEMENT x;
3185942a 3291
495aee44
CR		 3292 /* Boy, this is unclean. `time' by itself can
3293 time a null command. We cheat and push a
3294 newline back if the list_terminator was a newline
3295 to avoid the double-newline problem (one to
3296 terminate this, one to terminate the command) */
3297 x.word = 0;
3298 x.redirect = 0;
3299 (yyval.command) = make_simple_command (x, (COMMAND *)NULL);
3300 (yyval.command)->flags |= (yyvsp[(1) - (2)].number);
3301 /* XXX - let's cheat and push a newline back */
3302 if ((yyvsp[(2) - (2)].number) == '\n')
3303 token_to_read = '\n';
3185942a
JA		 3304 }
3305 break;
3306
495aee44 3307 case 161:
ca6a2ba4 3308#line 1229 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 3309 {
b80f6443
JA		 3310 ELEMENT x;
3311
495aee44
CR		 3312 /* This is just as unclean. Posix says that `!'
3313 by itself should be equivalent to `false'.
3314 We cheat and push a
b80f6443
JA		 3315 newline back if the list_terminator was a newline
3316 to avoid the double-newline problem (one to
3317 terminate this, one to terminate the command) */
3318 x.word = 0;
3319 x.redirect = 0;
3185942a 3320 (yyval.command) = make_simple_command (x, (COMMAND *)NULL);
495aee44 3321 (yyval.command)->flags |= CMD_INVERT_RETURN;
b80f6443 3322 /* XXX - let's cheat and push a newline back */
3185942a 3323 if ((yyvsp[(2) - (2)].number) == '\n')
b80f6443 3324 token_to_read = '\n';
3185942a
JA		 3325 }
3326 break;
f73dda09 3327
495aee44 3328 case 162:
ca6a2ba4 3329#line 1249 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3330 { (yyval.command) = command_connect ((yyvsp[(1) - (4)].command), (yyvsp[(4) - (4)].command), '|'); }
3331 break;
3332
495aee44 3333 case 163:
ca6a2ba4 3334#line 1251 "/usr/src/local/bash/bash-4.3-patched/parse.y"
f73dda09 3335 {
3185942a
JA		 3336 /* Make cmd1 |& cmd2 equivalent to cmd1 2>&1 | cmd2 */
3337 COMMAND *tc;
0001803f 3338 REDIRECTEE rd, sd;
3185942a
JA		 3339 REDIRECT *r;
3340
0001803f
CR		 3341 tc = (yyvsp[(1) - (4)].command)->type == cm_simple ? (COMMAND *)(yyvsp[(1) - (4)].command)->value.Simple : (yyvsp[(1) - (4)].command);
3342 sd.dest = 2;
3185942a 3343 rd.dest = 1;
0001803f 3344 r = make_redirection (sd, r_duplicating_output, rd, 0);
3185942a
JA		 3345 if (tc->redirects)
3346 {
3347 register REDIRECT *t;
3348 for (t = tc->redirects; t->next; t = t->next)
3349 ;
3350 t->next = r;
3351 }
3352 else
3353 tc->redirects = r;
3354
3355 (yyval.command) = command_connect ((yyvsp[(1) - (4)].command), (yyvsp[(4) - (4)].command), '|');
3356 }
3357 break;
3358
495aee44 3359 case 164:
ca6a2ba4 3360#line 1274 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3361 { (yyval.command) = (yyvsp[(1) - (1)].command); }
3362 break;
3363
495aee44 3364 case 165:
ca6a2ba4 3365#line 1278 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3366 { (yyval.number) = CMD_TIME_PIPELINE; }
3367 break;
3368
495aee44 3369 case 166:
ca6a2ba4 3370#line 1280 "/usr/src/local/bash/bash-4.3-patched/parse.y"
495aee44
CR		 3371 { (yyval.number) = CMD_TIME_PIPELINE|CMD_TIME_POSIX; }
3372 break;
3373
0001803f 3374 case 167:
ca6a2ba4 3375#line 1282 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a
JA		 3376 { (yyval.number) = CMD_TIME_PIPELINE|CMD_TIME_POSIX; }
3377 break;
3378
3379
3380/* Line 1267 of yacc.c. */
90a39f32 3381#line 3382 "y.tab.c"
3185942a 3382 default: break;
f73dda09 3383 }
3185942a
JA		 3384 YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
3385
3386 YYPOPSTACK (yylen);
3387 yylen = 0;
3388 YY_STACK_PRINT (yyss, yyssp);
f73dda09
JA		 3389
3390 *++yyvsp = yyval;
b80f6443 3391
f73dda09 3392
3185942a
JA		 3393 /* Now `shift' the result of the reduction. Determine what state
3394 that goes to, based on the state we popped back to and the rule
3395 number reduced by. */
f73dda09
JA		 3396
3397 yyn = yyr1[yyn];
3398
3185942a
JA		 3399 yystate = yypgoto[yyn - YYNTOKENS] + *yyssp;
3400 if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp)
f73dda09
JA		 3401 yystate = yytable[yystate];
3402 else
3185942a 3403 yystate = yydefgoto[yyn - YYNTOKENS];
f73dda09
JA		 3404
3405 goto yynewstate;
3406
f73dda09 3407
3185942a
JA		 3408/*------------------------------------.
3409| yyerrlab -- here on detecting error |
3410`------------------------------------*/
3411yyerrlab:
3412 /* If not already recovering from an error, report this error. */
3413 if (!yyerrstatus)
f73dda09
JA		 3414 {
3415 ++yynerrs;
3185942a
JA		 3416#if ! YYERROR_VERBOSE
3417 yyerror (YY_("syntax error"));
3418#else
3419 {
3420 YYSIZE_T yysize = yysyntax_error (0, yystate, yychar);
3421 if (yymsg_alloc < yysize && yymsg_alloc < YYSTACK_ALLOC_MAXIMUM)
3422 {
3423 YYSIZE_T yyalloc = 2 * yysize;
3424 if (! (yysize <= yyalloc && yyalloc <= YYSTACK_ALLOC_MAXIMUM))
3425 yyalloc = YYSTACK_ALLOC_MAXIMUM;
3426 if (yymsg != yymsgbuf)
3427 YYSTACK_FREE (yymsg);
3428 yymsg = (char *) YYSTACK_ALLOC (yyalloc);
3429 if (yymsg)
3430 yymsg_alloc = yyalloc;
3431 else
3432 {
3433 yymsg = yymsgbuf;
3434 yymsg_alloc = sizeof yymsgbuf;
3435 }
3436 }
f73dda09 3437
3185942a
JA		 3438 if (0 < yysize && yysize <= yymsg_alloc)
3439 {
3440 (void) yysyntax_error (yymsg, yystate, yychar);
3441 yyerror (yymsg);
3442 }
3443 else
3444 {
3445 yyerror (YY_("syntax error"));
3446 if (yysize != 0)
3447 goto yyexhaustedlab;
3448 }
3449 }
3450#endif
f73dda09 3451 }
f73dda09 3452
3185942a 3453
7117c2d2 3454
f73dda09
JA		 3455 if (yyerrstatus == 3)
3456 {
3185942a
JA		 3457 /* If just tried and failed to reuse look-ahead token after an
3458 error, discard it. */
b80f6443 3459
3185942a
JA		 3460 if (yychar <= YYEOF)
3461 {
3462 /* Return failure if at end of input. */
3463 if (yychar == YYEOF)
3464 YYABORT;
3465 }
3466 else
3467 {
3468 yydestruct ("Error: discarding",
3469 yytoken, &yylval);
3470 yychar = YYEMPTY;
3471 }
f73dda09
JA		 3472 }
3473
3185942a
JA		 3474 /* Else will try to reuse look-ahead token after shifting the error
3475 token. */
3476 goto yyerrlab1;
f73dda09 3477
f73dda09 3478
3185942a
JA		 3479/*---------------------------------------------------.
3480| yyerrorlab -- error raised explicitly by YYERROR. |
3481`---------------------------------------------------*/
3482yyerrorlab:
f73dda09 3483
3185942a
JA		 3484 /* Pacify compilers like GCC when the user code never invokes
3485 YYERROR and the label yyerrorlab therefore never appears in user
3486 code. */
3487 if (/*CONSTCOND*/ 0)
3488 goto yyerrorlab;
f73dda09 3489
3185942a
JA		 3490 /* Do not reclaim the symbols of the rule which action triggered
3491 this YYERROR. */
3492 YYPOPSTACK (yylen);
3493 yylen = 0;
3494 YY_STACK_PRINT (yyss, yyssp);
3495 yystate = *yyssp;
3496 goto yyerrlab1;
f73dda09 3497
f73dda09 3498
3185942a
JA		 3499/*-------------------------------------------------------------.
3500| yyerrlab1 -- common code for both syntax error and YYERROR. |
3501`-------------------------------------------------------------*/
3502yyerrlab1:
3503 yyerrstatus = 3; /* Each real token shifted decrements this. */
f73dda09 3504
3185942a 3505 for (;;)
f73dda09 3506 {
3185942a
JA		 3507 yyn = yypact[yystate];
3508 if (yyn != YYPACT_NINF)
3509 {
3510 yyn += YYTERROR;
3511 if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
3512 {
3513 yyn = yytable[yyn];
3514 if (0 < yyn)
3515 break;
3516 }
3517 }
b80f6443 3518
3185942a
JA		 3519 /* Pop the current state because it cannot handle the error token. */
3520 if (yyssp == yyss)
3521 YYABORT;
f73dda09 3522
f73dda09 3523
3185942a
JA		 3524 yydestruct ("Error: popping",
3525 yystos[yystate], yyvsp);
3526 YYPOPSTACK (1);
3527 yystate = *yyssp;
3528 YY_STACK_PRINT (yyss, yyssp);
f73dda09 3529 }
f73dda09
JA		 3530
3531 if (yyn == YYFINAL)
3532 YYACCEPT;
3533
f73dda09 3534 *++yyvsp = yylval;
3185942a
JA		 3535
3536
3537 /* Shift the error token. */
3538 YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp);
f73dda09
JA		 3539
3540 yystate = yyn;
3541 goto yynewstate;
3542
3185942a
JA		 3543
3544/*-------------------------------------.
3545| yyacceptlab -- YYACCEPT comes here. |
3546`-------------------------------------*/
3547yyacceptlab:
3548 yyresult = 0;
3549 goto yyreturn;
3550
3551/*-----------------------------------.
3552| yyabortlab -- YYABORT comes here. |
3553`-----------------------------------*/
3554yyabortlab:
3555 yyresult = 1;
3556 goto yyreturn;
3557
3558#ifndef yyoverflow
3559/*-------------------------------------------------.
3560| yyexhaustedlab -- memory exhaustion comes here. |
3561`-------------------------------------------------*/
3562yyexhaustedlab:
3563 yyerror (YY_("memory exhausted"));
3564 yyresult = 2;
3565 /* Fall through. */
b80f6443 3566#endif
f73dda09 3567
3185942a
JA		 3568yyreturn:
3569 if (yychar != YYEOF && yychar != YYEMPTY)
3570 yydestruct ("Cleanup: discarding lookahead",
3571 yytoken, &yylval);
3572 /* Do not reclaim the symbols of the rule which action triggered
3573 this YYABORT or YYACCEPT. */
3574 YYPOPSTACK (yylen);
3575 YY_STACK_PRINT (yyss, yyssp);
3576 while (yyssp != yyss)
b80f6443 3577 {
3185942a
JA		 3578 yydestruct ("Cleanup: popping",
3579 yystos[*yyssp], yyvsp);
3580 YYPOPSTACK (1);
b80f6443 3581 }
3185942a
JA		 3582#ifndef yyoverflow
3583 if (yyss != yyssa)
3584 YYSTACK_FREE (yyss);
3585#endif
3586#if YYERROR_VERBOSE
3587 if (yymsg != yymsgbuf)
3588 YYSTACK_FREE (yymsg);
3589#endif
3590 /* Make sure YYID is used. */
3591 return YYID (yyresult);
f73dda09 3592}
3185942a
JA		 3593
3594
ca6a2ba4 3595#line 1284 "/usr/src/local/bash/bash-4.3-patched/parse.y"
3185942a 3596
f73dda09
JA		 3597
3598/* Initial size to allocate for tokens, and the
3599 amount to grow them by. */
3600#define TOKEN_DEFAULT_INITIAL_SIZE 496
3601#define TOKEN_DEFAULT_GROW_SIZE 512
3602
b80f6443
JA		 3603/* Should we call prompt_again? */
3604#define SHOULD_PROMPT() \
3605 (interactive && (bash_input.type == st_stdin || bash_input.type == st_stream))
3606
3607#if defined (ALIAS)
3608# define expanding_alias() (pushed_string_list && pushed_string_list->expander)
3609#else
3610# define expanding_alias() 0
3611#endif
3612
f73dda09
JA		 3613/* Global var is non-zero when end of file has been reached. */
3614int EOF_Reached = 0;
3615
3616#ifdef DEBUG
3617static void
3618debug_parser (i)
3619 int i;
3620{
3621#if YYDEBUG != 0
3622 yydebug = i;
3623#endif
3624}
3625#endif
3626
3627/* yy_getc () returns the next available character from input or EOF.
3628 yy_ungetc (c) makes `c' the next character to read.
3629 init_yy_io (get, unget, type, location) makes the function GET the
3630 installed function for getting the next character, makes UNGET the
3631 installed function for un-getting a character, sets the type of stream
3632 (either string or file) from TYPE, and makes LOCATION point to where
3633 the input is coming from. */
3634
3635/* Unconditionally returns end-of-file. */
3636int
3637return_EOF ()
3638{
3639 return (EOF);
3640}
3641
3642/* Variable containing the current get and unget functions.
3643 See ./input.h for a clearer description. */
3644BASH_INPUT bash_input;
3645
3646/* Set all of the fields in BASH_INPUT to NULL. Free bash_input.name if it
3647 is non-null, avoiding a memory leak. */
3648void
3649initialize_bash_input ()
3650{
3651 bash_input.type = st_none;
3652 FREE (bash_input.name);
3653 bash_input.name = (char *)NULL;
3654 bash_input.location.file = (FILE *)NULL;
3655 bash_input.location.string = (char *)NULL;
3656 bash_input.getter = (sh_cget_func_t *)NULL;
3657 bash_input.ungetter = (sh_cunget_func_t *)NULL;
3658}
3659
3660/* Set the contents of the current bash input stream from
3661 GET, UNGET, TYPE, NAME, and LOCATION. */
3662void
3663init_yy_io (get, unget, type, name, location)
3664 sh_cget_func_t *get;
3665 sh_cunget_func_t *unget;
3666 enum stream_type type;
3667 const char *name;
3668 INPUT_STREAM location;
3669{
3670 bash_input.type = type;
3671 FREE (bash_input.name);
3672 bash_input.name = name ? savestring (name) : (char *)NULL;
3673
3674 /* XXX */
3675#if defined (CRAY)
3676 memcpy((char *)&bash_input.location.string, (char *)&location.string, sizeof(location));
3677#else
3678 bash_input.location = location;
3679#endif
3680 bash_input.getter = get;
3681 bash_input.ungetter = unget;
3682}
3683
7117c2d2
JA		 3684char *
3685yy_input_name ()
3686{
3687 return (bash_input.name ? bash_input.name : "stdin");
3688}
3689
f73dda09
JA		 3690/* Call this to get the next character of input. */
3691static int
3692yy_getc ()
3693{
3694 return (*(bash_input.getter)) ();
3695}
3696
3697/* Call this to unget C. That is, to make C the next character
3698 to be read. */
3699static int
3700yy_ungetc (c)
3701 int c;
3702{
3703 return (*(bash_input.ungetter)) (c);
3704}
3705
3706#if defined (BUFFERED_INPUT)
3707#ifdef INCLUDE_UNUSED
3708int
3709input_file_descriptor ()
3710{
3711 switch (bash_input.type)
3712 {
3713 case st_stream:
3714 return (fileno (bash_input.location.file));
3715 case st_bstream:
3716 return (bash_input.location.buffered_fd);
3717 case st_stdin:
3718 default:
3719 return (fileno (stdin));
3720 }
3721}
3722#endif
3723#endif /* BUFFERED_INPUT */
3724
3725/* **************************************************************** */
3726/* */
3727/* Let input be read from readline (). */
3728/* */
3729/* **************************************************************** */
3730
3731#if defined (READLINE)
3732char *current_readline_prompt = (char *)NULL;
3733char *current_readline_line = (char *)NULL;
3734int current_readline_line_index = 0;
3735
3736static int
3737yy_readline_get ()
3738{
3739 SigHandler *old_sigint;
3740 int line_len;
3741 unsigned char c;
3742
3743 if (!current_readline_line)
3744 {
3745 if (!bash_readline_initialized)
3746 initialize_readline ();
3747
3748#if defined (JOB_CONTROL)
3749 if (job_control)
3750 give_terminal_to (shell_pgrp, 0);
3751#endif /* JOB_CONTROL */
3752
495aee44 3753 old_sigint = (SigHandler *)IMPOSSIBLE_TRAP_HANDLER;
f73dda09
JA		 3754 if (signal_is_ignored (SIGINT) == 0)
3755 {
ac50fbac 3756 /* interrupt_immediately++; */
495aee44 3757 old_sigint = (SigHandler *)set_signal_handler (SIGINT, sigint_sighandler);
f73dda09
JA		 3758 }
3759
3760 current_readline_line = readline (current_readline_prompt ?
3761 current_readline_prompt : "");
3762
ac50fbac 3763 CHECK_TERMSIG;
495aee44 3764 if (signal_is_ignored (SIGINT) == 0)
f73dda09 3765 {
ac50fbac 3766 /* interrupt_immediately--; */
495aee44
CR		 3767 if (old_sigint != IMPOSSIBLE_TRAP_HANDLER)
3768 set_signal_handler (SIGINT, old_sigint);
f73dda09
JA		 3769 }
3770
3771#if 0
3772 /* Reset the prompt to the decoded value of prompt_string_pointer. */
3773 reset_readline_prompt ();
3774#endif
3775
3776 if (current_readline_line == 0)
3777 return (EOF);
3778
3779 current_readline_line_index = 0;
3780 line_len = strlen (current_readline_line);
3781
3782 current_readline_line = (char *)xrealloc (current_readline_line, 2 + line_len);
3783 current_readline_line[line_len++] = '\n';
3784 current_readline_line[line_len] = '\0';
3785 }
3786
3787 if (current_readline_line[current_readline_line_index] == 0)
3788 {
3789 free (current_readline_line);
3790 current_readline_line = (char *)NULL;
3791 return (yy_readline_get ());
3792 }
3793 else
3794 {
3795 c = current_readline_line[current_readline_line_index++];
3796 return (c);
3797 }
3798}
3799
3800static int
3801yy_readline_unget (c)
3802 int c;
3803{
3804 if (current_readline_line_index && current_readline_line)
3805 current_readline_line[--current_readline_line_index] = c;
3806 return (c);
3807}
3808
3809void
3810with_input_from_stdin ()
3811{
3812 INPUT_STREAM location;
3813
3814 if (bash_input.type != st_stdin && stream_on_stack (st_stdin) == 0)
3815 {
3816 location.string = current_readline_line;
3817 init_yy_io (yy_readline_get, yy_readline_unget,
3818 st_stdin, "readline stdin", location);
3819 }
3820}
3821
3822#else /* !READLINE */
3823
3824void
3825with_input_from_stdin ()
3826{
3827 with_input_from_stream (stdin, "stdin");
3828}
3829#endif /* !READLINE */
3830
3831/* **************************************************************** */
3832/* */
3833/* Let input come from STRING. STRING is zero terminated. */
3834/* */
3835/* **************************************************************** */
3836
3837static int
3838yy_string_get ()
3839{
3840 register char *string;
3841 register unsigned char c;
3842
3843 string = bash_input.location.string;
3844
3845 /* If the string doesn't exist, or is empty, EOF found. */
3846 if (string && *string)
3847 {
3848 c = *string++;
3849 bash_input.location.string = string;
3850 return (c);
3851 }
3852 else
3853 return (EOF);
3854}
3855
3856static int
3857yy_string_unget (c)
3858 int c;
3859{
3860 *(--bash_input.location.string) = c;
3861 return (c);
3862}
3863
3864void
3865with_input_from_string (string, name)
3866 char *string;
3867 const char *name;
3868{
3869 INPUT_STREAM location;
3870
3871 location.string = string;
3872 init_yy_io (yy_string_get, yy_string_unget, st_string, name, location);
3873}
3874
3185942a
JA		 3875/* Count the number of characters we've consumed from bash_input.location.string
3876 and read into shell_input_line, but have not returned from shell_getc.
3877 That is the true input location. Rewind bash_input.location.string by
3878 that number of characters, so it points to the last character actually
3879 consumed by the parser. */
3880static void
3881rewind_input_string ()
3882{
3883 int xchars;
3884
3885 /* number of unconsumed characters in the input -- XXX need to take newlines
3886 into account, e.g., $(...\n) */
3887 xchars = shell_input_line_len - shell_input_line_index;
3888 if (bash_input.location.string[-1] == '\n')
3889 xchars++;
3890
3891 /* XXX - how to reflect bash_input.location.string back to string passed to
3892 parse_and_execute or xparse_dolparen? xparse_dolparen needs to know how
3893 far into the string we parsed. parse_and_execute knows where bash_input.
3894 location.string is, and how far from orig_string that is -- that's the
3895 number of characters the command consumed. */
3896
3897 /* bash_input.location.string - xchars should be where we parsed to */
3898 /* need to do more validation on xchars value for sanity -- test cases. */
3899 bash_input.location.string -= xchars;
3900}
3901
f73dda09
JA		 3902/* **************************************************************** */
3903/* */
3904/* Let input come from STREAM. */
3905/* */
3906/* **************************************************************** */
3907
3908/* These two functions used to test the value of the HAVE_RESTARTABLE_SYSCALLS
3909 define, and just use getc/ungetc if it was defined, but since bash
3910 installs its signal handlers without the SA_RESTART flag, some signals
3911 (like SIGCHLD, SIGWINCH, etc.) received during a read(2) will not cause
3912 the read to be restarted. We need to restart it ourselves. */
3913
3914static int
3915yy_stream_get ()
3916{
3917 int result;
3918
3919 result = EOF;
3920 if (bash_input.location.file)
95732b49 3921 {
ac50fbac 3922#if 0
95732b49 3923 if (interactive)
ac50fbac
CR		 3924 interrupt_immediately++;
3925#endif
3926
3927 /* XXX - don't need terminate_immediately; getc_with_restart checks
3928 for terminating signals itself if read returns < 0 */
95732b49 3929 result = getc_with_restart (bash_input.location.file);
ac50fbac
CR		 3930
3931#if 0
95732b49 3932 if (interactive)
ac50fbac
CR		 3933 interrupt_immediately--;
3934#endif
95732b49 3935 }
f73dda09
JA		 3936 return (result);
3937}
3938
3939static int
3940yy_stream_unget (c)
3941 int c;
3942{
3943 return (ungetc_with_restart (c, bash_input.location.file));
3944}
3945
3946void
3947with_input_from_stream (stream, name)
3948 FILE *stream;
3949 const char *name;
3950{
3951 INPUT_STREAM location;
3952
3953 location.file = stream;
3954 init_yy_io (yy_stream_get, yy_stream_unget, st_stream, name, location);
3955}
3956
3957typedef struct stream_saver {
3958 struct stream_saver *next;
3959 BASH_INPUT bash_input;
3960 int line;
3961#if defined (BUFFERED_INPUT)
3962 BUFFERED_STREAM *bstream;
3963#endif /* BUFFERED_INPUT */
3964} STREAM_SAVER;
3965
3966/* The globally known line number. */
3967int line_number = 0;
3968
495aee44
CR		 3969/* The line number offset set by assigning to LINENO. Not currently used. */
3970int line_number_base = 0;
3971
f73dda09
JA		 3972#if defined (COND_COMMAND)
3973static int cond_lineno;
3974static int cond_token;
3975#endif
3976
3977STREAM_SAVER *stream_list = (STREAM_SAVER *)NULL;
3978
3979void
3980push_stream (reset_lineno)
3981 int reset_lineno;
3982{
3983 STREAM_SAVER *saver = (STREAM_SAVER *)xmalloc (sizeof (STREAM_SAVER));
3984
3985 xbcopy ((char *)&bash_input, (char *)&(saver->bash_input), sizeof (BASH_INPUT));
3986
3987#if defined (BUFFERED_INPUT)
3988 saver->bstream = (BUFFERED_STREAM *)NULL;
3989 /* If we have a buffered stream, clear out buffers[fd]. */
3990 if (bash_input.type == st_bstream && bash_input.location.buffered_fd >= 0)
3991 saver->bstream = set_buffered_stream (bash_input.location.buffered_fd,
3992 (BUFFERED_STREAM *)NULL);
3993#endif /* BUFFERED_INPUT */
3994
3995 saver->line = line_number;
3996 bash_input.name = (char *)NULL;
3997 saver->next = stream_list;
3998 stream_list = saver;
3999 EOF_Reached = 0;
4000 if (reset_lineno)
4001 line_number = 0;
4002}
4003
4004void
4005pop_stream ()
4006{
4007 if (!stream_list)
4008 EOF_Reached = 1;
4009 else
4010 {
4011 STREAM_SAVER *saver = stream_list;
4012
4013 EOF_Reached = 0;
4014 stream_list = stream_list->next;
4015
4016 init_yy_io (saver->bash_input.getter,
4017 saver->bash_input.ungetter,
4018 saver->bash_input.type,
4019 saver->bash_input.name,
4020 saver->bash_input.location);
4021
4022#if defined (BUFFERED_INPUT)
4023 /* If we have a buffered stream, restore buffers[fd]. */
4024 /* If the input file descriptor was changed while this was on the
4025 save stack, update the buffered fd to the new file descriptor and
4026 re-establish the buffer <-> bash_input fd correspondence. */
4027 if (bash_input.type == st_bstream && bash_input.location.buffered_fd >= 0)
4028 {
4029 if (bash_input_fd_changed)
4030 {
4031 bash_input_fd_changed = 0;
4032 if (default_buffered_input >= 0)
4033 {
4034 bash_input.location.buffered_fd = default_buffered_input;
4035 saver->bstream->b_fd = default_buffered_input;
4036 SET_CLOSE_ON_EXEC (default_buffered_input);
4037 }
4038 }
4039 /* XXX could free buffered stream returned as result here. */
4040 set_buffered_stream (bash_input.location.buffered_fd, saver->bstream);
4041 }
4042#endif /* BUFFERED_INPUT */
4043
4044 line_number = saver->line;
4045
4046 FREE (saver->bash_input.name);
4047 free (saver);
4048 }
4049}
4050
4051/* Return 1 if a stream of type TYPE is saved on the stack. */
4052int
4053stream_on_stack (type)
4054 enum stream_type type;
4055{
4056 register STREAM_SAVER *s;
4057
4058 for (s = stream_list; s; s = s->next)
4059 if (s->bash_input.type == type)
4060 return 1;
4061 return 0;
4062}
4063
4064/* Save the current token state and return it in a malloced array. */
4065int *
4066save_token_state ()
4067{
4068 int *ret;
4069
0001803f 4070 ret = (int *)xmalloc (4 * sizeof (int));
f73dda09
JA		 4071 ret[0] = last_read_token;
4072 ret[1] = token_before_that;
4073 ret[2] = two_tokens_ago;
0001803f 4074 ret[3] = current_token;
f73dda09
JA		 4075 return ret;
4076}
4077
4078void
4079restore_token_state (ts)
4080 int *ts;
4081{
4082 if (ts == 0)
4083 return;
4084 last_read_token = ts[0];
4085 token_before_that = ts[1];
4086 two_tokens_ago = ts[2];
0001803f 4087 current_token = ts[3];
f73dda09
JA		 4088}
4089
4090/*
4091 * This is used to inhibit alias expansion and reserved word recognition
4092 * inside case statement pattern lists. A `case statement pattern list' is:
4093 *
4094 * everything between the `in' in a `case word in' and the next ')'
4095 * or `esac'
4096 * everything between a `;;' and the next `)' or `esac'
4097 */
4098
4099#if defined (ALIAS) || defined (DPAREN_ARITHMETIC)
4100
f73dda09
JA		 4101#define END_OF_ALIAS 0
4102
4103/*
4104 * Pseudo-global variables used in implementing token-wise alias expansion.
4105 */
4106
4107/*
4108 * Pushing and popping strings. This works together with shell_getc to
4109 * implement alias expansion on a per-token basis.
4110 */
4111
ac50fbac
CR		 4112#define PSH_ALIAS 0x01
4113#define PSH_DPAREN 0x02
4114#define PSH_SOURCE 0x04
4115
f73dda09
JA		 4116typedef struct string_saver {
4117 struct string_saver *next;
4118 int expand_alias; /* Value to set expand_alias to when string is popped. */
4119 char *saved_line;
4120#if defined (ALIAS)
4121 alias_t *expander; /* alias that caused this line to be pushed. */
4122#endif
ac50fbac
CR		 4123 size_t saved_line_size, saved_line_index;
4124 int saved_line_terminator;
4125 int flags;
f73dda09
JA		 4126} STRING_SAVER;
4127
4128STRING_SAVER *pushed_string_list = (STRING_SAVER *)NULL;
4129
4130/*
4131 * Push the current shell_input_line onto a stack of such lines and make S
4132 * the current input. Used when expanding aliases. EXPAND is used to set
4133 * the value of expand_next_token when the string is popped, so that the
4134 * word after the alias in the original line is handled correctly when the
4135 * alias expands to multiple words. TOKEN is the token that was expanded
4136 * into S; it is saved and used to prevent infinite recursive expansion.
4137 */
4138static void
4139push_string (s, expand, ap)
4140 char *s;
4141 int expand;
4142 alias_t *ap;
4143{
4144 STRING_SAVER *temp = (STRING_SAVER *)xmalloc (sizeof (STRING_SAVER));
4145
4146 temp->expand_alias = expand;
4147 temp->saved_line = shell_input_line;
4148 temp->saved_line_size = shell_input_line_size;
4149 temp->saved_line_index = shell_input_line_index;
4150 temp->saved_line_terminator = shell_input_line_terminator;
ac50fbac 4151 temp->flags = 0;
f73dda09
JA		 4152#if defined (ALIAS)
4153 temp->expander = ap;
ac50fbac
CR		 4154 if (ap)
4155 temp->flags = PSH_ALIAS;
f73dda09
JA		 4156#endif
4157 temp->next = pushed_string_list;
4158 pushed_string_list = temp;
4159
4160#if defined (ALIAS)
4161 if (ap)
4162 ap->flags |= AL_BEINGEXPANDED;
4163#endif
4164
4165 shell_input_line = s;
ac50fbac 4166 shell_input_line_size = STRLEN (s);
f73dda09
JA		 4167 shell_input_line_index = 0;
4168 shell_input_line_terminator = '\0';
b80f6443
JA		 4169#if 0
4170 parser_state &= ~PST_ALEXPNEXT; /* XXX */
4171#endif
7117c2d2
JA		 4172
4173 set_line_mbstate ();
f73dda09
JA		 4174}
4175
4176/*
4177 * Make the top of the pushed_string stack be the current shell input.
4178 * Only called when there is something on the stack. Called from shell_getc
4179 * when it thinks it has consumed the string generated by an alias expansion
4180 * and needs to return to the original input line.
4181 */
4182static void
4183pop_string ()
4184{
4185 STRING_SAVER *t;
4186
4187 FREE (shell_input_line);
4188 shell_input_line = pushed_string_list->saved_line;
4189 shell_input_line_index = pushed_string_list->saved_line_index;
4190 shell_input_line_size = pushed_string_list->saved_line_size;
4191 shell_input_line_terminator = pushed_string_list->saved_line_terminator;
4192
4193 if (pushed_string_list->expand_alias)
4194 parser_state |= PST_ALEXPNEXT;
4195 else
4196 parser_state &= ~PST_ALEXPNEXT;
4197
4198 t = pushed_string_list;
4199 pushed_string_list = pushed_string_list->next;
4200
4201#if defined (ALIAS)
4202 if (t->expander)
4203 t->expander->flags &= ~AL_BEINGEXPANDED;
4204#endif
4205
4206 free ((char *)t);
7117c2d2
JA		 4207
4208 set_line_mbstate ();
f73dda09
JA		 4209}
4210
4211static void
4212free_string_list ()
4213{
4214 register STRING_SAVER *t, *t1;
4215
4216 for (t = pushed_string_list; t; )
4217 {
4218 t1 = t->next;
4219 FREE (t->saved_line);
4220#if defined (ALIAS)
4221 if (t->expander)
4222 t->expander->flags &= ~AL_BEINGEXPANDED;
4223#endif
4224 free ((char *)t);
4225 t = t1;
4226 }
4227 pushed_string_list = (STRING_SAVER *)NULL;
4228}
4229
4230#endif /* ALIAS || DPAREN_ARITHMETIC */
4231
b80f6443
JA		 4232void
4233free_pushed_string_input ()
4234{
4235#if defined (ALIAS) || defined (DPAREN_ARITHMETIC)
4236 free_string_list ();
4237#endif
4238}
4239
ac50fbac
CR		 4240int
4241parser_expanding_alias ()
4242{
4243 return (expanding_alias ());
4244}
4245
4246void
4247parser_save_alias ()
4248{
4249#if defined (ALIAS) || defined (DPAREN_ARITHMETIC)
4250 push_string ((char *)NULL, 0, (alias_t *)NULL);
4251 pushed_string_list->flags = PSH_SOURCE; /* XXX - for now */
4252#else
4253 ;
4254#endif
4255}
4256
4257void
4258parser_restore_alias ()
4259{
4260#if defined (ALIAS) || defined (DPAREN_ARITHMETIC)
4261 if (pushed_string_list)
4262 pop_string ();
4263#else
4264 ;
4265#endif
4266}
4267
f73dda09
JA		 4268/* Return a line of text, taken from wherever yylex () reads input.
4269 If there is no more input, then we return NULL. If REMOVE_QUOTED_NEWLINE
4270 is non-zero, we remove unquoted \<newline> pairs. This is used by
4271 read_secondary_line to read here documents. */
4272static char *
4273read_a_line (remove_quoted_newline)
4274 int remove_quoted_newline;
4275{
4276 static char *line_buffer = (char *)NULL;
4277 static int buffer_size = 0;
0001803f 4278 int indx, c, peekc, pass_next;
f73dda09
JA		 4279
4280#if defined (READLINE)
b80f6443 4281 if (no_line_editing && SHOULD_PROMPT ())
f73dda09 4282#else
b80f6443 4283 if (SHOULD_PROMPT ())
f73dda09
JA		 4284#endif
4285 print_prompt ();
4286
0001803f 4287 pass_next = indx = 0;
f73dda09
JA		 4288 while (1)
4289 {
f73dda09
JA		 4290 /* Allow immediate exit if interrupted during input. */
4291 QUIT;
4292
95732b49
JA		 4293 c = yy_getc ();
4294
f73dda09
JA		 4295 /* Ignore null bytes in input. */
4296 if (c == 0)
4297 {
4298#if 0
4299 internal_warning ("read_a_line: ignored null byte in input");
4300#endif
4301 continue;
4302 }
4303
4304 /* If there is no more input, then we return NULL. */
4305 if (c == EOF)
4306 {
4307 if (interactive && bash_input.type == st_stream)
4308 clearerr (stdin);
4309 if (indx == 0)
4310 return ((char *)NULL);
4311 c = '\n';
4312 }
4313
4314 /* `+2' in case the final character in the buffer is a newline. */
4315 RESIZE_MALLOCED_BUFFER (line_buffer, indx, 2, buffer_size, 128);
4316
4317 /* IF REMOVE_QUOTED_NEWLINES is non-zero, we are reading a
4318 here document with an unquoted delimiter. In this case,
4319 the line will be expanded as if it were in double quotes.
4320 We allow a backslash to escape the next character, but we
4321 need to treat the backslash specially only if a backslash
4322 quoting a backslash-newline pair appears in the line. */
4323 if (pass_next)
4324 {
4325 line_buffer[indx++] = c;
4326 pass_next = 0;
4327 }
4328 else if (c == '\\' && remove_quoted_newline)
4329 {
495aee44 4330 QUIT;
f73dda09
JA		 4331 peekc = yy_getc ();
4332 if (peekc == '\n')
b80f6443
JA		 4333 {
4334 line_number++;
4335 continue; /* Make the unquoted \<newline> pair disappear. */
4336 }
f73dda09
JA		 4337 else
4338 {
4339 yy_ungetc (peekc);
4340 pass_next = 1;
4341 line_buffer[indx++] = c; /* Preserve the backslash. */
4342 }
4343 }
4344 else
4345 line_buffer[indx++] = c;
4346
4347 if (c == '\n')
4348 {
4349 line_buffer[indx] = '\0';
4350 return (line_buffer);
4351 }
4352 }
4353}
4354
4355/* Return a line as in read_a_line (), but insure that the prompt is
4356 the secondary prompt. This is used to read the lines of a here
4357 document. REMOVE_QUOTED_NEWLINE is non-zero if we should remove
4358 newlines quoted with backslashes while reading the line. It is
4359 non-zero unless the delimiter of the here document was quoted. */
4360char *
4361read_secondary_line (remove_quoted_newline)
4362 int remove_quoted_newline;
4363{
3185942a
JA		 4364 char *ret;
4365 int n, c;
4366
f73dda09 4367 prompt_string_pointer = &ps2_prompt;
b80f6443
JA		 4368 if (SHOULD_PROMPT())
4369 prompt_again ();
3185942a
JA		 4370 ret = read_a_line (remove_quoted_newline);
4371#if defined (HISTORY)
0001803f 4372 if (ret && remember_on_history && (parser_state & PST_HEREDOC))
3185942a
JA		 4373 {
4374 /* To make adding the the here-document body right, we need to rely
4375 on history_delimiting_chars() returning \n for the first line of
4376 the here-document body and the null string for the second and
4377 subsequent lines, so we avoid double newlines.
4378 current_command_line_count == 2 for the first line of the body. */
4379
4380 current_command_line_count++;
4381 maybe_add_history (ret);
4382 }
4383#endif /* HISTORY */
4384 return ret;
f73dda09
JA		 4385}
4386
4387/* **************************************************************** */
4388/* */
4389/* YYLEX () */
4390/* */
4391/* **************************************************************** */
4392
4393/* Reserved words. These are only recognized as the first word of a
4394 command. */
4395STRING_INT_ALIST word_token_alist[] = {
4396 { "if", IF },
4397 { "then", THEN },
28ef6c31
JA		 4398 { "else", ELSE },
4399 { "elif", ELIF },
4400 { "fi", FI },
4401 { "case", CASE },
4402 { "esac", ESAC },
4403 { "for", FOR },
4404#if defined (SELECT_COMMAND)
4405 { "select", SELECT },
726f6388 4406#endif
28ef6c31
JA		 4407 { "while", WHILE },
4408 { "until", UNTIL },
4409 { "do", DO },
4410 { "done", DONE },
4411 { "in", IN },
4412 { "function", FUNCTION },
4413#if defined (COMMAND_TIMING)
4414 { "time", TIME },
4415#endif
4416 { "{", '{' },
4417 { "}", '}' },
4418 { "!", BANG },
4419#if defined (COND_COMMAND)
4420 { "[[", COND_START },
4421 { "]]", COND_END },
3185942a
JA		 4422#endif
4423#if defined (COPROCESS_SUPPORT)
4424 { "coproc", COPROC },
726f6388 4425#endif
28ef6c31
JA		 4426 { (char *)NULL, 0}
4427};
726f6388 4428
7117c2d2
JA		 4429/* other tokens that can be returned by read_token() */
4430STRING_INT_ALIST other_token_alist[] = {
4431 /* Multiple-character tokens with special values */
495aee44 4432 { "--", TIMEIGN },
7117c2d2
JA		 4433 { "-p", TIMEOPT },
4434 { "&&", AND_AND },
4435 { "||", OR_OR },
4436 { ">>", GREATER_GREATER },
4437 { "<<", LESS_LESS },
4438 { "<&", LESS_AND },
4439 { ">&", GREATER_AND },
4440 { ";;", SEMI_SEMI },
3185942a
JA		 4441 { ";&", SEMI_AND },
4442 { ";;&", SEMI_SEMI_AND },
7117c2d2
JA		 4443 { "<<-", LESS_LESS_MINUS },
4444 { "<<<", LESS_LESS_LESS },
4445 { "&>", AND_GREATER },
3185942a 4446 { "&>>", AND_GREATER_GREATER },
7117c2d2
JA		 4447 { "<>", LESS_GREATER },
4448 { ">|", GREATER_BAR },
3185942a 4449 { "|&", BAR_AND },
7117c2d2
JA		 4450 { "EOF", yacc_EOF },
4451 /* Tokens whose value is the character itself */
4452 { ">", '>' },
4453 { "<", '<' },
4454 { "-", '-' },
4455 { "{", '{' },
4456 { "}", '}' },
4457 { ";", ';' },
4458 { "(", '(' },
4459 { ")", ')' },
4460 { "|", '|' },
4461 { "&", '&' },
4462 { "newline", '\n' },
4463 { (char *)NULL, 0}
4464};
4465
4466/* others not listed here:
4467 WORD look at yylval.word
4468 ASSIGNMENT_WORD look at yylval.word
4469 NUMBER look at yylval.number
4470 ARITH_CMD look at yylval.word_list
4471 ARITH_FOR_EXPRS look at yylval.word_list
4472 COND_CMD look at yylval.command
4473*/
726f6388 4474
28ef6c31
JA		 4475/* These are used by read_token_word, but appear up here so that shell_getc
4476 can use them to decide when to add otherwise blank lines to the history. */
726f6388 4477
28ef6c31
JA		 4478/* The primary delimiter stack. */
4479struct dstack dstack = { (char *)NULL, 0, 0 };
726f6388 4480
28ef6c31
JA		 4481/* A temporary delimiter stack to be used when decoding prompt strings.
4482 This is needed because command substitutions in prompt strings (e.g., PS2)
4483 can screw up the parser's quoting state. */
4484static struct dstack temp_dstack = { (char *)NULL, 0, 0 };
726f6388 4485
28ef6c31
JA		 4486/* Macro for accessing the top delimiter on the stack. Returns the
4487 delimiter or zero if none. */
4488#define current_delimiter(ds) \
4489 (ds.delimiter_depth ? ds.delimiters[ds.delimiter_depth - 1] : 0)
726f6388 4490
28ef6c31
JA		 4491#define push_delimiter(ds, character) \
4492 do \
4493 { \
4494 if (ds.delimiter_depth + 2 > ds.delimiter_space) \
f73dda09 4495 ds.delimiters = (char *)xrealloc \
28ef6c31
JA		 4496 (ds.delimiters, (ds.delimiter_space += 10) * sizeof (char)); \
4497 ds.delimiters[ds.delimiter_depth] = character; \
4498 ds.delimiter_depth++; \
4499 } \
4500 while (0)
726f6388 4501
28ef6c31 4502#define pop_delimiter(ds) ds.delimiter_depth--
726f6388 4503
28ef6c31
JA		 4504/* Return the next shell input character. This always reads characters
4505 from shell_input_line; when that line is exhausted, it is time to
4506 read the next line. This is called by read_token when the shell is
4507 processing normal command input. */
ccc6cda3 4508
28ef6c31
JA		 4509/* This implements one-character lookahead/lookbehind across physical input
4510 lines, to avoid something being lost because it's pushed back with
4511 shell_ungetc when we're at the start of a line. */
4512static int eol_ungetc_lookahead = 0;
726f6388 4513
28ef6c31
JA		 4514static int
4515shell_getc (remove_quoted_newline)
4516 int remove_quoted_newline;
4517{
4518 register int i;
ac50fbac 4519 int c, truncating;
f73dda09 4520 unsigned char uc;
726f6388 4521
28ef6c31 4522 QUIT;
726f6388 4523
95732b49
JA		 4524 if (sigwinch_received)
4525 {
4526 sigwinch_received = 0;
4527 get_new_window_size (0, (int *)0, (int *)0);
4528 }
4529
28ef6c31
JA		 4530 if (eol_ungetc_lookahead)
4531 {
4532 c = eol_ungetc_lookahead;
4533 eol_ungetc_lookahead = 0;
4534 return (c);
4535 }
ccc6cda3 4536
28ef6c31
JA		 4537#if defined (ALIAS) || defined (DPAREN_ARITHMETIC)
4538 /* If shell_input_line[shell_input_line_index] == 0, but there is
4539 something on the pushed list of strings, then we don't want to go
4540 off and get another line. We let the code down below handle it. */
b72432fd 4541
28ef6c31
JA		 4542 if (!shell_input_line || ((!shell_input_line[shell_input_line_index]) &&
4543 (pushed_string_list == (STRING_SAVER *)NULL)))
4544#else /* !ALIAS && !DPAREN_ARITHMETIC */
4545 if (!shell_input_line || !shell_input_line[shell_input_line_index])
4546#endif /* !ALIAS && !DPAREN_ARITHMETIC */
4547 {
4548 line_number++;
726f6388 4549
ac50fbac
CR		 4550 /* Let's not let one really really long line blow up memory allocation */
4551 if (shell_input_line && shell_input_line_size >= 32768)
4552 {
4553 free (shell_input_line);
4554 shell_input_line = 0;
4555 shell_input_line_size = 0;
4556 }
4557
28ef6c31 4558 restart_read:
726f6388 4559
28ef6c31
JA		 4560 /* Allow immediate exit if interrupted during input. */
4561 QUIT;
ccc6cda3 4562
ac50fbac 4563 i = truncating = 0;
28ef6c31 4564 shell_input_line_terminator = 0;
726f6388 4565
b80f6443
JA		 4566 /* If the shell is interatctive, but not currently printing a prompt
4567 (interactive_shell && interactive == 0), we don't want to print
4568 notifies or cleanup the jobs -- we want to defer it until we do
4569 print the next prompt. */
4570 if (interactive_shell == 0 || SHOULD_PROMPT())
4571 {
28ef6c31
JA		 4572#if defined (JOB_CONTROL)
4573 /* This can cause a problem when reading a command as the result
4574 of a trap, when the trap is called from flush_child. This call
4575 had better not cause jobs to disappear from the job table in
4576 that case, or we will have big trouble. */
b80f6443 4577 notify_and_cleanup ();
28ef6c31 4578#else /* !JOB_CONTROL */
b80f6443 4579 cleanup_dead_jobs ();
28ef6c31 4580#endif /* !JOB_CONTROL */
b80f6443 4581 }
ccc6cda3 4582
28ef6c31 4583#if defined (READLINE)
b80f6443 4584 if (no_line_editing && SHOULD_PROMPT())
28ef6c31 4585#else
b80f6443 4586 if (SHOULD_PROMPT())
28ef6c31
JA		 4587#endif
4588 print_prompt ();
726f6388 4589
28ef6c31
JA		 4590 if (bash_input.type == st_stream)
4591 clearerr (stdin);
726f6388 4592
28ef6c31
JA		 4593 while (1)
4594 {
4595 c = yy_getc ();
4596
4597 /* Allow immediate exit if interrupted during input. */
4598 QUIT;
4599
4600 if (c == '\0')
4601 {
4602#if 0
4603 internal_warning ("shell_getc: ignored null byte in input");
ccc6cda3 4604#endif
28ef6c31
JA		 4605 continue;
4606 }
ccc6cda3 4607
ac50fbac
CR		 4608 /* Theoretical overflow */
4609 /* If we can't put 256 bytes more into the buffer, allocate
4610 everything we can and fill it as full as we can. */
4611 /* XXX - we ignore rest of line using `truncating' flag */
4612 if (shell_input_line_size > (SIZE_MAX - 256))
4613 {
4614 size_t n;
4615
4616 n = SIZE_MAX - i; /* how much more can we put into the buffer? */
4617 if (n <= 2) /* we have to save 1 for the newline added below */
4618 {
4619 if (truncating == 0)
4620 internal_warning("shell_getc: shell_input_line_size (%zu) exceeds SIZE_MAX (%llu): line truncated", shell_input_line_size, SIZE_MAX);
4621 shell_input_line[i] = '\0';
4622 truncating = 1;
4623 }
4624 if (shell_input_line_size < SIZE_MAX)
4625 {
4626 shell_input_line_size = SIZE_MAX;
4627 shell_input_line = xrealloc (shell_input_line, shell_input_line_size);
4628 }
4629 }
4630 else
4631 RESIZE_MALLOCED_BUFFER (shell_input_line, i, 2, shell_input_line_size, 256);
726f6388 4632
28ef6c31
JA		 4633 if (c == EOF)
4634 {
4635 if (bash_input.type == st_stream)
4636 clearerr (stdin);
726f6388 4637
28ef6c31
JA		 4638 if (i == 0)
4639 shell_input_line_terminator = EOF;
726f6388 4640
28ef6c31
JA		 4641 shell_input_line[i] = '\0';
4642 break;
4643 }
726f6388 4644
ac50fbac
CR		 4645 if (truncating == 0 || c == '\n')
4646 shell_input_line[i++] = c;
726f6388 4647
28ef6c31
JA		 4648 if (c == '\n')
4649 {
4650 shell_input_line[--i] = '\0';
4651 current_command_line_count++;
4652 break;
4653 }
4654 }
726f6388 4655
28ef6c31
JA		 4656 shell_input_line_index = 0;
4657 shell_input_line_len = i; /* == strlen (shell_input_line) */
ccc6cda3 4658
7117c2d2
JA		 4659 set_line_mbstate ();
4660
28ef6c31
JA		 4661#if defined (HISTORY)
4662 if (remember_on_history && shell_input_line && shell_input_line[0])
4663 {
4664 char *expansions;
4665# if defined (BANG_HISTORY)
4666 int old_hist;
726f6388 4667
28ef6c31
JA		 4668 /* If the current delimiter is a single quote, we should not be
4669 performing history expansion, even if we're on a different
4670 line from the original single quote. */
4671 old_hist = history_expansion_inhibited;
4672 if (current_delimiter (dstack) == '\'')
4673 history_expansion_inhibited = 1;
4674# endif
4675 expansions = pre_process_line (shell_input_line, 1, 1);
4676# if defined (BANG_HISTORY)
4677 history_expansion_inhibited = old_hist;
4678# endif
4679 if (expansions != shell_input_line)
4680 {
4681 free (shell_input_line);
4682 shell_input_line = expansions;
4683 shell_input_line_len = shell_input_line ?
4684 strlen (shell_input_line) : 0;
495aee44 4685 if (shell_input_line_len == 0)
28ef6c31 4686 current_command_line_count--;
726f6388 4687
28ef6c31
JA		 4688 /* We have to force the xrealloc below because we don't know
4689 the true allocated size of shell_input_line anymore. */
4690 shell_input_line_size = shell_input_line_len;
7117c2d2
JA		 4691
4692 set_line_mbstate ();
28ef6c31
JA		 4693 }
4694 }
4695 /* Try to do something intelligent with blank lines encountered while
4696 entering multi-line commands. XXX - this is grotesque */
4697 else if (remember_on_history && shell_input_line &&
4698 shell_input_line[0] == '\0' &&
4699 current_command_line_count > 1)
726f6388 4700 {
28ef6c31
JA		 4701 if (current_delimiter (dstack))
4702 /* We know shell_input_line[0] == 0 and we're reading some sort of
4703 quoted string. This means we've got a line consisting of only
4704 a newline in a quoted string. We want to make sure this line
4705 gets added to the history. */
4706 maybe_add_history (shell_input_line);
4707 else
4708 {
4709 char *hdcs;
495aee44 4710 hdcs = history_delimiting_chars (shell_input_line);
28ef6c31
JA		 4711 if (hdcs && hdcs[0] == ';')
4712 maybe_add_history (shell_input_line);
4713 }
726f6388
JA		 4714 }
4715
28ef6c31 4716#endif /* HISTORY */
726f6388 4717
28ef6c31 4718 if (shell_input_line)
726f6388 4719 {
28ef6c31 4720 /* Lines that signify the end of the shell's input should not be
ac50fbac
CR		 4721 echoed. We should not echo lines while parsing command
4722 substitutions with recursive calls into the parsing engine; those
4723 should only be echoed once when we read the word. That is the
4724 reason for the test against shell_eof_token, which is set to a
4725 right paren when parsing the contents of command substitutions. */
28ef6c31 4726 if (echo_input_at_read && (shell_input_line[0] ||
ac50fbac
CR		 4727 shell_input_line_terminator != EOF) &&
4728 shell_eof_token == 0)
28ef6c31
JA		 4729 fprintf (stderr, "%s\n", shell_input_line);
4730 }
4731 else
4732 {
4733 shell_input_line_size = 0;
4734 prompt_string_pointer = &current_prompt_string;
b80f6443
JA		 4735 if (SHOULD_PROMPT ())
4736 prompt_again ();
28ef6c31 4737 goto restart_read;
726f6388
JA		 4738 }
4739
28ef6c31
JA		 4740 /* Add the newline to the end of this string, iff the string does
4741 not already end in an EOF character. */
4742 if (shell_input_line_terminator != EOF)
4743 {
6ebbb24a 4744 if (shell_input_line_size < SIZE_MAX-3 && (shell_input_line_len+3 > shell_input_line_size))
f73dda09 4745 shell_input_line = (char *)xrealloc (shell_input_line,
28ef6c31 4746 1 + (shell_input_line_size += 2));
726f6388 4747
28ef6c31
JA		 4748 shell_input_line[shell_input_line_len] = '\n';
4749 shell_input_line[shell_input_line_len + 1] = '\0';
7117c2d2
JA		 4750
4751 set_line_mbstate ();
28ef6c31
JA		 4752 }
4753 }
726f6388 4754
495aee44 4755next_alias_char:
f73dda09 4756 uc = shell_input_line[shell_input_line_index];
ccc6cda3 4757
f73dda09 4758 if (uc)
28ef6c31 4759 shell_input_line_index++;
726f6388 4760
28ef6c31 4761#if defined (ALIAS) || defined (DPAREN_ARITHMETIC)
f73dda09 4762 /* If UC is NULL, we have reached the end of the current input string. If
28ef6c31
JA		 4763 pushed_string_list is non-empty, it's time to pop to the previous string
4764 because we have fully consumed the result of the last alias expansion.
4765 Do it transparently; just return the next character of the string popped
4766 to. */
ac50fbac
CR		 4767 /* If pushed_string_list != 0 but pushed_string_list->expander == 0 (not
4768 currently tested) and the flags value is not PSH_SOURCE, we are not
4769 parsing an alias, we have just saved one (push_string, when called by
4770 the parse_dparen code) In this case, just go on as well. The PSH_SOURCE
4771 case is handled below. */
0001803f 4772pop_alias:
ac50fbac 4773 if (uc == 0 && pushed_string_list && pushed_string_list->flags != PSH_SOURCE)
726f6388 4774 {
b80f6443
JA		 4775 pop_string ();
4776 uc = shell_input_line[shell_input_line_index];
4777 if (uc)
4778 shell_input_line_index++;
726f6388 4779 }
28ef6c31
JA		 4780#endif /* ALIAS || DPAREN_ARITHMETIC */
4781
95732b49
JA		 4782 if MBTEST(uc == '\\' && remove_quoted_newline && shell_input_line[shell_input_line_index] == '\n')
4783 {
4784 if (SHOULD_PROMPT ())
4785 prompt_again ();
4786 line_number++;
495aee44
CR		 4787 /* What do we do here if we're expanding an alias whose definition
4788 includes an escaped newline? If that's the last character in the
4789 alias expansion, we just pop the pushed string list (recall that
4790 we inhibit the appending of a space in mk_alexpansion() if newline
4791 is the last character). If it's not the last character, we need
4792 to consume the quoted newline and move to the next character in
4793 the expansion. */
509a4430 4794#if defined (ALIAS)
0001803f
CR		 4795 if (expanding_alias () && shell_input_line[shell_input_line_index+1] == '\0')
4796 {
4797 uc = 0;
4798 goto pop_alias;
4799 }
495aee44
CR		 4800 else if (expanding_alias () && shell_input_line[shell_input_line_index+1] != '\0')
4801 {
4802 shell_input_line_index++; /* skip newline */
4803 goto next_alias_char; /* and get next character */
4804 }
509a4430
CR		 4805 else
4806#endif
495aee44 4807 goto restart_read;
95732b49
JA		 4808 }
4809
495aee44 4810 if (uc == 0 && shell_input_line_terminator == EOF)
28ef6c31
JA		 4811 return ((shell_input_line_index != 0) ? '\n' : EOF);
4812
ac50fbac
CR		 4813#if defined (ALIAS) || defined (DPAREN_ARITHMETIC)
4814 /* We already know that we are not parsing an alias expansion because of the
4815 check for expanding_alias() above. This knows how parse_and_execute
4816 handles switching to st_string input while an alias is being expanded,
4817 hence the check for pushed_string_list without pushed_string_list->expander
4818 and the check for PSH_SOURCE as pushed_string_list->flags.
4819 parse_and_execute and parse_string both change the input type to st_string
4820 and place the string to be parsed and executed into location.string, so
4821 we should not stop reading that until the pointer is '\0'.
4822 The check for shell_input_line_terminator may be superfluous.
4823
4824 This solves the problem of `.' inside a multi-line alias with embedded
4825 newlines executing things out of order. */
4826 if (uc == 0 && bash_input.type == st_string && *bash_input.location.string &&
4827 pushed_string_list && pushed_string_list->flags == PSH_SOURCE &&
4828 shell_input_line_terminator == 0)
4829 {
4830 shell_input_line_index = 0;
4831 goto restart_read;
4832 }
4833#endif
4834
f73dda09 4835 return (uc);
726f6388
JA		 4836}
4837
7117c2d2
JA		 4838/* Put C back into the input for the shell. This might need changes for
4839 HANDLE_MULTIBYTE around EOLs. Since we (currently) never push back a
4840 character different than we read, shell_input_line_property doesn't need
4841 to change when manipulating shell_input_line. The define for
4842 last_shell_getc_is_singlebyte should take care of it, though. */
28ef6c31
JA		 4843static void
4844shell_ungetc (c)
ccc6cda3 4845 int c;
726f6388 4846{
28ef6c31
JA		 4847 if (shell_input_line && shell_input_line_index)
4848 shell_input_line[--shell_input_line_index] = c;
4849 else
4850 eol_ungetc_lookahead = c;
726f6388
JA		 4851}
4852
ca6a2ba4
CR		 4853char *
4854parser_remaining_input ()
4855{
4856 if (shell_input_line == 0)
4857 return 0;
4858 if (shell_input_line_index < 0 || shell_input_line_index >= shell_input_line_len)
4859 return '\0'; /* XXX */
4860 return (shell_input_line + shell_input_line_index);
4861}
4862
f73dda09
JA		 4863#ifdef INCLUDE_UNUSED
4864/* Back the input pointer up by one, effectively `ungetting' a character. */
28ef6c31
JA		 4865static void
4866shell_ungetchar ()
726f6388 4867{
28ef6c31
JA		 4868 if (shell_input_line && shell_input_line_index)
4869 shell_input_line_index--;
726f6388 4870}
f73dda09 4871#endif
726f6388 4872
28ef6c31
JA		 4873/* Discard input until CHARACTER is seen, then push that character back
4874 onto the input stream. */
4875static void
4876discard_until (character)
4877 int character;
726f6388 4878{
28ef6c31 4879 int c;
726f6388 4880
28ef6c31
JA		 4881 while ((c = shell_getc (0)) != EOF && c != character)
4882 ;
726f6388 4883
28ef6c31
JA		 4884 if (c != EOF)
4885 shell_ungetc (c);
4886}
726f6388 4887
28ef6c31 4888void
0628567a
JA		 4889execute_variable_command (command, vname)
4890 char *command, *vname;
28ef6c31 4891{
28ef6c31 4892 char *last_lastarg;
b80f6443 4893 sh_parser_state_t ps;
726f6388 4894
b80f6443 4895 save_parser_state (&ps);
28ef6c31
JA		 4896 last_lastarg = get_string_value ("_");
4897 if (last_lastarg)
4898 last_lastarg = savestring (last_lastarg);
726f6388 4899
0628567a 4900 parse_and_execute (savestring (command), vname, SEVAL_NONINT|SEVAL_NOHIST);
726f6388 4901
b80f6443 4902 restore_parser_state (&ps);
95732b49 4903 bind_variable ("_", last_lastarg, 0);
28ef6c31
JA		 4904 FREE (last_lastarg);
4905
4906 if (token_to_read == '\n') /* reset_parser was called */
4907 token_to_read = 0;
726f6388
JA		 4908}
4909
28ef6c31
JA		 4910/* Place to remember the token. We try to keep the buffer
4911 at a reasonable size, but it can grow. */
4912static char *token = (char *)NULL;
726f6388 4913
28ef6c31
JA		 4914/* Current size of the token buffer. */
4915static int token_buffer_size;
4916
4917/* Command to read_token () explaining what we want it to do. */
4918#define READ 0
4919#define RESET 1
4920#define prompt_is_ps1 \
4921 (!prompt_string_pointer || prompt_string_pointer == &ps1_prompt)
bb70624e 4922
28ef6c31
JA		 4923/* Function for yyparse to call. yylex keeps track of
4924 the last two tokens read, and calls read_token. */
726f6388 4925static int
28ef6c31 4926yylex ()
726f6388 4927{
28ef6c31
JA		 4928 if (interactive && (current_token == 0 || current_token == '\n'))
4929 {
4930 /* Before we print a prompt, we might have to check mailboxes.
4931 We do this only if it is time to do so. Notice that only here
4932 is the mail alarm reset; nothing takes place in check_mail ()
4933 except the checking of mail. Please don't change this. */
509a4430 4934 if (prompt_is_ps1 && parse_and_execute_level == 0 && time_to_check_mail ())
28ef6c31
JA		 4935 {
4936 check_mail ();
4937 reset_mail_timer ();
4938 }
726f6388 4939
28ef6c31
JA		 4940 /* Avoid printing a prompt if we're not going to read anything, e.g.
4941 after resetting the parser with read_token (RESET). */
b80f6443 4942 if (token_to_read == 0 && SHOULD_PROMPT ())
28ef6c31
JA		 4943 prompt_again ();
4944 }
bb70624e 4945
28ef6c31
JA		 4946 two_tokens_ago = token_before_that;
4947 token_before_that = last_read_token;
4948 last_read_token = current_token;
4949 current_token = read_token (READ);
3185942a
JA		 4950
4951 if ((parser_state & PST_EOFTOKEN) && current_token == shell_eof_token)
4952 {
4953 current_token = yacc_EOF;
4954 if (bash_input.type == st_string)
4955 rewind_input_string ();
4956 }
4957 parser_state &= ~PST_EOFTOKEN;
4958
28ef6c31 4959 return (current_token);
726f6388
JA		 4960}
4961
28ef6c31
JA		 4962/* When non-zero, we have read the required tokens
4963 which allow ESAC to be the next one read. */
4964static int esacs_needed_count;
726f6388 4965
90a39f32
CR		 4966static void
4967push_heredoc (r)
4968 REDIRECT *r;
4969{
4970 if (need_here_doc >= HEREDOC_MAX)
4971 {
4972 last_command_exit_value = EX_BADUSAGE;
4973 need_here_doc = 0;
4974 report_syntax_error (_("maximum here-document count exceeded"));
4975 reset_parser ();
4976 exit_shell (last_command_exit_value);
4977 }
4978 redir_stack[need_here_doc++] = r;
4979}
4980
726f6388 4981void
28ef6c31 4982gather_here_documents ()
726f6388 4983{
3185942a
JA		 4984 int r;
4985
4986 r = 0;
daefb2c5 4987 while (need_here_doc > 0)
28ef6c31 4988 {
3185942a
JA		 4989 parser_state |= PST_HEREDOC;
4990 make_here_document (redir_stack[r++], line_number);
4991 parser_state &= ~PST_HEREDOC;
28ef6c31
JA		 4992 need_here_doc--;
4993 }
726f6388
JA		 4994}
4995
28ef6c31
JA		 4996/* When non-zero, an open-brace used to create a group is awaiting a close
4997 brace partner. */
4998static int open_brace_count;
726f6388 4999
28ef6c31 5000#define command_token_position(token) \
0001803f 5001 (((token) == ASSIGNMENT_WORD) || (parser_state&PST_REDIRLIST) || \
3185942a 5002 ((token) != SEMI_SEMI && (token) != SEMI_AND && (token) != SEMI_SEMI_AND && reserved_word_acceptable(token)))
cce855bc 5003
b80f6443
JA		 5004#define assignment_acceptable(token) \
5005 (command_token_position(token) && ((parser_state & PST_CASEPAT) == 0))
726f6388 5006
28ef6c31
JA		 5007/* Check to see if TOKEN is a reserved word and return the token
5008 value if it is. */
5009#define CHECK_FOR_RESERVED_WORD(tok) \
5010 do { \
5011 if (!dollar_present && !quoted && \
5012 reserved_word_acceptable (last_read_token)) \
5013 { \
5014 int i; \
5015 for (i = 0; word_token_alist[i].word != (char *)NULL; i++) \
5016 if (STREQ (tok, word_token_alist[i].word)) \
5017 { \
5018 if ((parser_state & PST_CASEPAT) && (word_token_alist[i].token != ESAC)) \
5019 break; \
b80f6443 5020 if (word_token_alist[i].token == TIME && time_command_acceptable () == 0) \
28ef6c31
JA		 5021 break; \
5022 if (word_token_alist[i].token == ESAC) \
5023 parser_state &= ~(PST_CASEPAT|PST_CASESTMT); \
5024 else if (word_token_alist[i].token == CASE) \
5025 parser_state |= PST_CASESTMT; \
5026 else if (word_token_alist[i].token == COND_END) \
5027 parser_state &= ~(PST_CONDCMD|PST_CONDEXPR); \
5028 else if (word_token_alist[i].token == COND_START) \
5029 parser_state |= PST_CONDCMD; \
5030 else if (word_token_alist[i].token == '{') \
5031 open_brace_count++; \
5032 else if (word_token_alist[i].token == '}' && open_brace_count) \
5033 open_brace_count--; \
5034 return (word_token_alist[i].token); \
5035 } \
5036 } \
5037 } while (0)
726f6388 5038
28ef6c31 5039#if defined (ALIAS)
726f6388 5040
28ef6c31
JA		 5041 /* OK, we have a token. Let's try to alias expand it, if (and only if)
5042 it's eligible.
726f6388 5043
7117c2d2 5044 It is eligible for expansion if EXPAND_ALIASES is set, and
28ef6c31
JA		 5045 the token is unquoted and the last token read was a command
5046 separator (or expand_next_token is set), and we are currently
5047 processing an alias (pushed_string_list is non-empty) and this
5048 token is not the same as the current or any previously
5049 processed alias.
726f6388 5050
28ef6c31
JA		 5051 Special cases that disqualify:
5052 In a pattern list in a case statement (parser_state & PST_CASEPAT). */
b80f6443
JA		 5053
5054static char *
5055mk_alexpansion (s)
5056 char *s;
5057{
5058 int l;
5059 char *r;
5060
5061 l = strlen (s);
5062 r = xmalloc (l + 2);
5063 strcpy (r, s);
495aee44
CR		 5064 /* If the last character in the alias is a newline, don't add a trailing
5065 space to the expansion. Works with shell_getc above. */
5066 if (r[l - 1] != ' ' && r[l - 1] != '\n')
b80f6443
JA		 5067 r[l++] = ' ';
5068 r[l] = '\0';
5069 return r;
5070}
5071
28ef6c31 5072static int
f73dda09
JA		 5073alias_expand_token (tokstr)
5074 char *tokstr;
726f6388 5075{
28ef6c31
JA		 5076 char *expanded;
5077 alias_t *ap;
5078
5079 if (((parser_state & PST_ALEXPNEXT) || command_token_position (last_read_token)) &&
5080 (parser_state & PST_CASEPAT) == 0)
726f6388 5081 {
f73dda09 5082 ap = find_alias (tokstr);
726f6388 5083
28ef6c31
JA		 5084 /* Currently expanding this token. */
5085 if (ap && (ap->flags & AL_BEINGEXPANDED))
5086 return (NO_EXPANSION);
726f6388 5087
b80f6443
JA		 5088 /* mk_alexpansion puts an extra space on the end of the alias expansion,
5089 so the lookahead by the parser works right. If this gets changed,
5090 make sure the code in shell_getc that deals with reaching the end of
5091 an expanded alias is changed with it. */
5092 expanded = ap ? mk_alexpansion (ap->value) : (char *)NULL;
5093
28ef6c31
JA		 5094 if (expanded)
5095 {
5096 push_string (expanded, ap->flags & AL_EXPANDNEXT, ap);
5097 return (RE_READ_TOKEN);
5098 }
5099 else
5100 /* This is an eligible token that does not have an expansion. */
5101 return (NO_EXPANSION);
5102 }
5103 return (NO_EXPANSION);
5104}
5105#endif /* ALIAS */
726f6388 5106
28ef6c31
JA		 5107static int
5108time_command_acceptable ()
726f6388 5109{
28ef6c31 5110#if defined (COMMAND_TIMING)
495aee44
CR		 5111 int i;
5112
5113 if (posixly_correct && shell_compatibility_level > 41)
5114 {
5115 /* Quick check of the rest of the line to find the next token. If it
5116 begins with a `-', Posix says to not return `time' as the token.
5117 This was interp 267. */
5118 i = shell_input_line_index;
5119 while (i < shell_input_line_len && (shell_input_line[i] == ' ' || shell_input_line[i] == '\t'))
5120 i++;
5121 if (shell_input_line[i] == '-')
5122 return 0;
5123 }
5124
28ef6c31
JA		 5125 switch (last_read_token)
5126 {
5127 case 0:
5128 case ';':
5129 case '\n':
5130 case AND_AND:
5131 case OR_OR:
5132 case '&':
af61c549 5133 case WHILE:
28ef6c31 5134 case DO:
af61c549
CR		 5135 case UNTIL:
5136 case IF:
28ef6c31 5137 case THEN:
af61c549 5138 case ELIF:
28ef6c31
JA		 5139 case ELSE:
5140 case '{': /* } */
af61c549
CR		 5141 case '(': /* )( */
5142 case ')': /* only valid in case statement */
495aee44
CR		 5143 case BANG: /* ! time pipeline */
5144 case TIME: /* time time pipeline */
5145 case TIMEOPT: /* time -p time pipeline */
5146 case TIMEIGN: /* time -p -- ... */
726f6388 5147 return 1;
28ef6c31
JA		 5148 default:
5149 return 0;
5150 }
5151#else
726f6388 5152 return 0;
28ef6c31 5153#endif /* COMMAND_TIMING */
726f6388
JA		 5154}
5155
28ef6c31
JA		 5156/* Handle special cases of token recognition:
5157 IN is recognized if the last token was WORD and the token
5158 before that was FOR or CASE or SELECT.
726f6388 5159
28ef6c31
JA		 5160 DO is recognized if the last token was WORD and the token
5161 before that was FOR or SELECT.
cce855bc 5162
28ef6c31
JA		 5163 ESAC is recognized if the last token caused `esacs_needed_count'
5164 to be set
ccc6cda3 5165
28ef6c31
JA		 5166 `{' is recognized if the last token as WORD and the token
5167 before that was FUNCTION, or if we just parsed an arithmetic
5168 `for' command.
ccc6cda3 5169
28ef6c31 5170 `}' is recognized if there is an unclosed `{' present.
726f6388 5171
28ef6c31 5172 `-p' is returned as TIMEOPT if the last read token was TIME.
495aee44 5173 `--' is returned as TIMEIGN if the last read token was TIMEOPT.
726f6388 5174
28ef6c31
JA		 5175 ']]' is returned as COND_END if the parser is currently parsing
5176 a conditional expression ((parser_state & PST_CONDEXPR) != 0)
726f6388 5177
28ef6c31
JA		 5178 `time' is returned as TIME if and only if it is immediately
5179 preceded by one of `;', `\n', `||', `&&', or `&'.
5180*/
726f6388 5181
28ef6c31 5182static int
f73dda09
JA		 5183special_case_tokens (tokstr)
5184 char *tokstr;
726f6388 5185{
28ef6c31
JA		 5186 if ((last_read_token == WORD) &&
5187#if defined (SELECT_COMMAND)
5188 ((token_before_that == FOR) || (token_before_that == CASE) || (token_before_that == SELECT)) &&
5189#else
5190 ((token_before_that == FOR) || (token_before_that == CASE)) &&
cce855bc 5191#endif
f73dda09 5192 (tokstr[0] == 'i' && tokstr[1] == 'n' && tokstr[2] == 0))
28ef6c31
JA		 5193 {
5194 if (token_before_that == CASE)
5195 {
5196 parser_state |= PST_CASEPAT;
5197 esacs_needed_count++;
5198 }
5199 return (IN);
5200 }
726f6388 5201
28ef6c31
JA		 5202 if (last_read_token == WORD &&
5203#if defined (SELECT_COMMAND)
5204 (token_before_that == FOR || token_before_that == SELECT) &&
5205#else
5206 (token_before_that == FOR) &&
cce855bc 5207#endif
f73dda09 5208 (tokstr[0] == 'd' && tokstr[1] == 'o' && tokstr[2] == '\0'))
28ef6c31 5209 return (DO);
726f6388 5210
28ef6c31
JA		 5211 /* Ditto for ESAC in the CASE case.
5212 Specifically, this handles "case word in esac", which is a legal
5213 construct, certainly because someone will pass an empty arg to the
5214 case construct, and we don't want it to barf. Of course, we should
5215 insist that the case construct has at least one pattern in it, but
5216 the designers disagree. */
5217 if (esacs_needed_count)
5218 {
5219 esacs_needed_count--;
f73dda09 5220 if (STREQ (tokstr, "esac"))
28ef6c31
JA		 5221 {
5222 parser_state &= ~PST_CASEPAT;
5223 return (ESAC);
5224 }
5225 }
726f6388 5226
28ef6c31
JA		 5227 /* The start of a shell function definition. */
5228 if (parser_state & PST_ALLOWOPNBRC)
5229 {
5230 parser_state &= ~PST_ALLOWOPNBRC;
f73dda09 5231 if (tokstr[0] == '{' && tokstr[1] == '\0') /* } */
28ef6c31
JA		 5232 {
5233 open_brace_count++;
5234 function_bstart = line_number;
5235 return ('{'); /* } */
5236 }
5237 }
726f6388 5238
28ef6c31
JA		 5239 /* We allow a `do' after a for ((...)) without an intervening
5240 list_terminator */
f73dda09 5241 if (last_read_token == ARITH_FOR_EXPRS && tokstr[0] == 'd' && tokstr[1] == 'o' && !tokstr[2])
28ef6c31 5242 return (DO);
f73dda09 5243 if (last_read_token == ARITH_FOR_EXPRS && tokstr[0] == '{' && tokstr[1] == '\0') /* } */
28ef6c31
JA		 5244 {
5245 open_brace_count++;
5246 return ('{'); /* } */
5247 }
726f6388 5248
f73dda09 5249 if (open_brace_count && reserved_word_acceptable (last_read_token) && tokstr[0] == '}' && !tokstr[1])
28ef6c31
JA		 5250 {
5251 open_brace_count--; /* { */
5252 return ('}');
5253 }
ccc6cda3 5254
28ef6c31
JA		 5255#if defined (COMMAND_TIMING)
5256 /* Handle -p after `time'. */
f73dda09 5257 if (last_read_token == TIME && tokstr[0] == '-' && tokstr[1] == 'p' && !tokstr[2])
28ef6c31 5258 return (TIMEOPT);
495aee44
CR		 5259 /* Handle -- after `time -p'. */
5260 if (last_read_token == TIMEOPT && tokstr[0] == '-' && tokstr[1] == '-' && !tokstr[2])
5261 return (TIMEIGN);
b80f6443 5262#endif
28ef6c31
JA		 5263
5264#if defined (COND_COMMAND) /* [[ */
f73dda09 5265 if ((parser_state & PST_CONDEXPR) && tokstr[0] == ']' && tokstr[1] == ']' && tokstr[2] == '\0')
28ef6c31 5266 return (COND_END);
cce855bc 5267#endif
ccc6cda3 5268
28ef6c31 5269 return (-1);
726f6388
JA		 5270}
5271
28ef6c31
JA		 5272/* Called from shell.c when Control-C is typed at top level. Or
5273 by the error rule at top level. */
5274void
5275reset_parser ()
726f6388 5276{
28ef6c31
JA		 5277 dstack.delimiter_depth = 0; /* No delimiters found so far. */
5278 open_brace_count = 0;
726f6388 5279
0001803f
CR		 5280#if defined (EXTENDED_GLOB)
5281 /* Reset to global value of extended glob */
5282 if (parser_state & PST_EXTPAT)
5283 extended_glob = global_extglob;
5284#endif
5285
28ef6c31 5286 parser_state = 0;
726f6388 5287
28ef6c31
JA		 5288#if defined (ALIAS) || defined (DPAREN_ARITHMETIC)
5289 if (pushed_string_list)
5290 free_string_list ();
cce855bc 5291#endif /* ALIAS || DPAREN_ARITHMETIC */
ccc6cda3 5292
28ef6c31 5293 if (shell_input_line)
726f6388 5294 {
28ef6c31
JA		 5295 free (shell_input_line);
5296 shell_input_line = (char *)NULL;
5297 shell_input_line_size = shell_input_line_index = 0;
5298 }
726f6388 5299
28ef6c31
JA		 5300 FREE (word_desc_to_read);
5301 word_desc_to_read = (WORD_DESC *)NULL;
726f6388 5302
836a17be
CR		 5303 eol_ungetc_lookahead = 0;
5304
0001803f 5305 current_token = '\n'; /* XXX */
28ef6c31
JA		 5306 last_read_token = '\n';
5307 token_to_read = '\n';
5308}
726f6388 5309
28ef6c31
JA		 5310/* Read the next token. Command can be READ (normal operation) or
5311 RESET (to normalize state). */
5312static int
5313read_token (command)
5314 int command;
5315{
5316 int character; /* Current character. */
5317 int peek_char; /* Temporary look-ahead character. */
5318 int result; /* The thing to return. */
726f6388 5319
28ef6c31
JA		 5320 if (command == RESET)
5321 {
5322 reset_parser ();
5323 return ('\n');
5324 }
726f6388 5325
28ef6c31
JA		 5326 if (token_to_read)
5327 {
5328 result = token_to_read;
5329 if (token_to_read == WORD || token_to_read == ASSIGNMENT_WORD)
726f6388 5330 {
28ef6c31
JA		 5331 yylval.word = word_desc_to_read;
5332 word_desc_to_read = (WORD_DESC *)NULL;
726f6388 5333 }
28ef6c31
JA		 5334 token_to_read = 0;
5335 return (result);
5336 }
726f6388 5337
28ef6c31
JA		 5338#if defined (COND_COMMAND)
5339 if ((parser_state & (PST_CONDCMD|PST_CONDEXPR)) == PST_CONDCMD)
5340 {
5341 cond_lineno = line_number;
5342 parser_state |= PST_CONDEXPR;
5343 yylval.command = parse_cond_command ();
5344 if (cond_token != COND_END)
726f6388 5345 {
7117c2d2 5346 cond_error ();
28ef6c31 5347 return (-1);
726f6388 5348 }
28ef6c31
JA		 5349 token_to_read = COND_END;
5350 parser_state &= ~(PST_CONDEXPR|PST_CONDCMD);
5351 return (COND_CMD);
726f6388 5352 }
cce855bc 5353#endif
726f6388 5354
28ef6c31
JA		 5355#if defined (ALIAS)
5356 /* This is a place to jump back to once we have successfully expanded a
5357 token with an alias and pushed the string with push_string () */
5358 re_read_token:
5359#endif /* ALIAS */
ccc6cda3 5360
28ef6c31 5361 /* Read a single word from input. Start by skipping blanks. */
0628567a 5362 while ((character = shell_getc (1)) != EOF && shellblank (character))
28ef6c31 5363 ;
ccc6cda3 5364
28ef6c31
JA		 5365 if (character == EOF)
5366 {
5367 EOF_Reached = 1;
5368 return (yacc_EOF);
5369 }
ccc6cda3 5370
7117c2d2 5371 if MBTEST(character == '#' && (!interactive || interactive_comments))
28ef6c31
JA		 5372 {
5373 /* A comment. Discard until EOL or EOF, and then return a newline. */
5374 discard_until ('\n');
5375 shell_getc (0);
5376 character = '\n'; /* this will take the next if statement and return. */
5377 }
ccc6cda3 5378
28ef6c31
JA		 5379 if (character == '\n')
5380 {
5381 /* If we're about to return an unquoted newline, we can go and collect
5382 the text of any pending here document. */
5383 if (need_here_doc)
5384 gather_here_documents ();
ccc6cda3 5385
28ef6c31
JA		 5386#if defined (ALIAS)
5387 parser_state &= ~PST_ALEXPNEXT;
5388#endif /* ALIAS */
ccc6cda3 5389
95732b49
JA		 5390 parser_state &= ~PST_ASSIGNOK;
5391
28ef6c31
JA		 5392 return (character);
5393 }
726f6388 5394
3185942a
JA		 5395 if (parser_state & PST_REGEXP)
5396 goto tokword;
5397
28ef6c31 5398 /* Shell meta-characters. */
7117c2d2 5399 if MBTEST(shellmeta (character) && ((parser_state & PST_DBLPAREN) == 0))
28ef6c31
JA		 5400 {
5401#if defined (ALIAS)
5402 /* Turn off alias tokenization iff this character sequence would
5403 not leave us ready to read a command. */
5404 if (character == '<' || character == '>')
5405 parser_state &= ~PST_ALEXPNEXT;
5406#endif /* ALIAS */
726f6388 5407
95732b49
JA		 5408 parser_state &= ~PST_ASSIGNOK;
5409
28ef6c31
JA		 5410 peek_char = shell_getc (1);
5411 if (character == peek_char)
5412 {
5413 switch (character)
5414 {
5415 case '<':
5416 /* If '<' then we could be at "<<" or at "<<-". We have to
5417 look ahead one more character. */
5418 peek_char = shell_getc (1);
3185942a 5419 if MBTEST(peek_char == '-')
28ef6c31 5420 return (LESS_LESS_MINUS);
3185942a 5421 else if MBTEST(peek_char == '<')
7117c2d2 5422 return (LESS_LESS_LESS);
28ef6c31
JA		 5423 else
5424 {
5425 shell_ungetc (peek_char);
5426 return (LESS_LESS);
5427 }
726f6388 5428
28ef6c31
JA		 5429 case '>':
5430 return (GREATER_GREATER);
726f6388 5431
28ef6c31
JA		 5432 case ';':
5433 parser_state |= PST_CASEPAT;
5434#if defined (ALIAS)
5435 parser_state &= ~PST_ALEXPNEXT;
5436#endif /* ALIAS */
95732b49 5437
3185942a
JA		 5438 peek_char = shell_getc (1);
5439 if MBTEST(peek_char == '&')
5440 return (SEMI_SEMI_AND);
5441 else
5442 {
5443 shell_ungetc (peek_char);
5444 return (SEMI_SEMI);
5445 }
726f6388 5446
28ef6c31
JA		 5447 case '&':
5448 return (AND_AND);
726f6388 5449
28ef6c31
JA		 5450 case '|':
5451 return (OR_OR);
726f6388 5452
28ef6c31
JA		 5453#if defined (DPAREN_ARITHMETIC) || defined (ARITH_FOR_COMMAND)
5454 case '(': /* ) */
7117c2d2
JA		 5455 result = parse_dparen (character);
5456 if (result == -2)
5457 break;
5458 else
5459 return result;
726f6388 5460#endif
28ef6c31
JA		 5461 }
5462 }
7117c2d2 5463 else if MBTEST(character == '<' && peek_char == '&')
28ef6c31 5464 return (LESS_AND);
7117c2d2 5465 else if MBTEST(character == '>' && peek_char == '&')
28ef6c31 5466 return (GREATER_AND);
7117c2d2 5467 else if MBTEST(character == '<' && peek_char == '>')
28ef6c31 5468 return (LESS_GREATER);
7117c2d2 5469 else if MBTEST(character == '>' && peek_char == '|')
28ef6c31 5470 return (GREATER_BAR);
3185942a
JA		 5471 else if MBTEST(character == '&' && peek_char == '>')
5472 {
5473 peek_char = shell_getc (1);
5474 if MBTEST(peek_char == '>')
5475 return (AND_GREATER_GREATER);
5476 else
5477 {
5478 shell_ungetc (peek_char);
5479 return (AND_GREATER);
5480 }
5481 }
5482 else if MBTEST(character == '|' && peek_char == '&')
5483 return (BAR_AND);
5484 else if MBTEST(character == ';' && peek_char == '&')
5485 {
5486 parser_state |= PST_CASEPAT;
5487#if defined (ALIAS)
5488 parser_state &= ~PST_ALEXPNEXT;
5489#endif /* ALIAS */
5490 return (SEMI_AND);
5491 }
726f6388 5492
28ef6c31 5493 shell_ungetc (peek_char);
726f6388 5494
28ef6c31
JA		 5495 /* If we look like we are reading the start of a function
5496 definition, then let the reader know about it so that
5497 we will do the right thing with `{'. */
7117c2d2 5498 if MBTEST(character == ')' && last_read_token == '(' && token_before_that == WORD)
726f6388 5499 {
28ef6c31
JA		 5500 parser_state |= PST_ALLOWOPNBRC;
5501#if defined (ALIAS)
5502 parser_state &= ~PST_ALEXPNEXT;
5503#endif /* ALIAS */
5504 function_dstart = line_number;
5505 }
726f6388 5506
28ef6c31
JA		 5507 /* case pattern lists may be preceded by an optional left paren. If
5508 we're not trying to parse a case pattern list, the left paren
5509 indicates a subshell. */
7117c2d2 5510 if MBTEST(character == '(' && (parser_state & PST_CASEPAT) == 0) /* ) */
28ef6c31
JA		 5511 parser_state |= PST_SUBSHELL;
5512 /*(*/
7117c2d2 5513 else if MBTEST((parser_state & PST_CASEPAT) && character == ')')
28ef6c31
JA		 5514 parser_state &= ~PST_CASEPAT;
5515 /*(*/
7117c2d2 5516 else if MBTEST((parser_state & PST_SUBSHELL) && character == ')')
28ef6c31 5517 parser_state &= ~PST_SUBSHELL;
726f6388 5518
28ef6c31
JA		 5519#if defined (PROCESS_SUBSTITUTION)
5520 /* Check for the constructs which introduce process substitution.
5521 Shells running in `posix mode' don't do process substitution. */
7117c2d2 5522 if MBTEST(posixly_correct || ((character != '>' && character != '<') || peek_char != '(')) /*)*/
28ef6c31
JA		 5523#endif /* PROCESS_SUBSTITUTION */
5524 return (character);
5525 }
726f6388 5526
3185942a
JA		 5527 /* Hack <&- (close stdin) case. Also <&N- (dup and close). */
5528 if MBTEST(character == '-' && (last_read_token == LESS_AND || last_read_token == GREATER_AND))
5529 return (character);
5530
5531tokword:
5532 /* Okay, if we got this far, we have to read a word. Read one,
5533 and then check it against the known ones. */
5534 result = read_token_word (character);
5535#if defined (ALIAS)
5536 if (result == RE_READ_TOKEN)
5537 goto re_read_token;
5538#endif
5539 return result;
5540}
5541
5542/*
5543 * Match a $(...) or other grouping construct. This has to handle embedded
5544 * quoted strings ('', ``, "") and nested constructs. It also must handle
5545 * reprompting the user, if necessary, after reading a newline, and returning
5546 * correct error values if it reads EOF.
5547 */
495aee44
CR		 5548#define P_FIRSTCLOSE 0x0001
5549#define P_ALLOWESC 0x0002
5550#define P_DQUOTE 0x0004
5551#define P_COMMAND 0x0008 /* parsing a command, so look for comments */
5552#define P_BACKQUOTE 0x0010 /* parsing a backquoted command substitution */
5553#define P_ARRAYSUB 0x0020 /* parsing a [...] array subscript for assignment */
5554#define P_DOLBRACE 0x0040 /* parsing a ${...} construct */
3185942a
JA		 5555
5556/* Lexical state while parsing a grouping construct or $(...). */
5557#define LEX_WASDOL 0x001
5558#define LEX_CKCOMMENT 0x002
5559#define LEX_INCOMMENT 0x004
5560#define LEX_PASSNEXT 0x008
5561#define LEX_RESWDOK 0x010
5562#define LEX_CKCASE 0x020
5563#define LEX_INCASE 0x040
5564#define LEX_INHEREDOC 0x080
5565#define LEX_HEREDELIM 0x100 /* reading here-doc delimiter */
5566#define LEX_STRIPDOC 0x200 /* <<- strip tabs from here doc delim */
0001803f 5567#define LEX_INWORD 0x400
3185942a
JA		 5568
5569#define COMSUB_META(ch) ((ch) == ';' || (ch) == '&' || (ch) == '|')
5570
5571#define CHECK_NESTRET_ERROR() \
5572 do { \
5573 if (nestret == &matched_pair_error) \
5574 { \
5575 free (ret); \
5576 return &matched_pair_error; \
5577 } \
5578 } while (0)
5579
5580#define APPEND_NESTRET() \
5581 do { \
5582 if (nestlen) \
5583 { \
5584 RESIZE_MALLOCED_BUFFER (ret, retind, nestlen, retsize, 64); \
5585 strcpy (ret + retind, nestret); \
5586 retind += nestlen; \
5587 } \
5588 } while (0)
5589
5590static char matched_pair_error;
5591
5592static char *
5593parse_matched_pair (qc, open, close, lenp, flags)
5594 int qc; /* `"' if this construct is within double quotes */
5595 int open, close;
5596 int *lenp, flags;
5597{
5598 int count, ch, tflags;
5599 int nestlen, ttranslen, start_lineno;
5600 char *ret, *nestret, *ttrans;
5601 int retind, retsize, rflags;
495aee44
CR		 5602 int dolbrace_state;
5603
5604 dolbrace_state = (flags & P_DOLBRACE) ? DOLBRACE_PARAM : 0;
3185942a 5605
0001803f 5606/*itrace("parse_matched_pair[%d]: open = %c close = %c flags = %d", line_number, open, close, flags);*/
3185942a
JA		 5607 count = 1;
5608 tflags = 0;
5609
5610 if ((flags & P_COMMAND) && qc != '`' && qc != '\'' && qc != '"' && (flags & P_DQUOTE) == 0)
5611 tflags |= LEX_CKCOMMENT;
5612
5613 /* RFLAGS is the set of flags we want to pass to recursive calls. */
5614 rflags = (qc == '"') ? P_DQUOTE : (flags & P_DQUOTE);
5615
5616 ret = (char *)xmalloc (retsize = 64);
5617 retind = 0;
5618
5619 start_lineno = line_number;
5620 while (count)
5621 {
495aee44 5622 ch = shell_getc (qc != '\'' && (tflags & (LEX_PASSNEXT)) == 0);
3185942a
JA		 5623
5624 if (ch == EOF)
5625 {
5626 free (ret);
5627 parser_error (start_lineno, _("unexpected EOF while looking for matching `%c'"), close);
5628 EOF_Reached = 1; /* XXX */
5629 return (&matched_pair_error);
5630 }
5631
5632 /* Possible reprompting. */
5633 if (ch == '\n' && SHOULD_PROMPT ())
5634 prompt_again ();
5635
5636 /* Don't bother counting parens or doing anything else if in a comment
5637 or part of a case statement */
5638 if (tflags & LEX_INCOMMENT)
5639 {
5640 /* Add this character. */
5641 RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64);
5642 ret[retind++] = ch;
5643
5644 if (ch == '\n')
5645 tflags &= ~LEX_INCOMMENT;
5646
5647 continue;
5648 }
5649
5650 /* Not exactly right yet, should handle shell metacharacters, too. If
5651 any changes are made to this test, make analogous changes to subst.c:
5652 extract_delimited_string(). */
5653 else if MBTEST((tflags & LEX_CKCOMMENT) && (tflags & LEX_INCOMMENT) == 0 && ch == '#' && (retind == 0 || ret[retind-1] == '\n' || shellblank (ret[retind - 1])))
5654 tflags |= LEX_INCOMMENT;
5655
5656 if (tflags & LEX_PASSNEXT) /* last char was backslash */
5657 {
5658 tflags &= ~LEX_PASSNEXT;
5659 if (qc != '\'' && ch == '\n') /* double-quoted \<newline> disappears. */
5660 {
5661 if (retind > 0)
5662 retind--; /* swallow previously-added backslash */
5663 continue;
5664 }
5665
5666 RESIZE_MALLOCED_BUFFER (ret, retind, 2, retsize, 64);
ac50fbac 5667 if MBTEST(ch == CTLESC)
3185942a
JA		 5668 ret[retind++] = CTLESC;
5669 ret[retind++] = ch;
5670 continue;
5671 }
5672 /* If we're reparsing the input (e.g., from parse_string_to_word_list),
5673 we've already prepended CTLESC to single-quoted results of $'...'.
5674 We may want to do this for other CTLESC-quoted characters in
5675 reparse, too. */
5676 else if MBTEST((parser_state & PST_REPARSE) && open == '\'' && (ch == CTLESC || ch == CTLNUL))
5677 {
5678 RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64);
5679 ret[retind++] = ch;
5680 continue;
5681 }
5682 else if MBTEST(ch == CTLESC || ch == CTLNUL) /* special shell escapes */
5683 {
5684 RESIZE_MALLOCED_BUFFER (ret, retind, 2, retsize, 64);
5685 ret[retind++] = CTLESC;
5686 ret[retind++] = ch;
5687 continue;
5688 }
5689 else if MBTEST(ch == close) /* ending delimiter */
5690 count--;
5691 /* handle nested ${...} specially. */
5692 else if MBTEST(open != close && (tflags & LEX_WASDOL) && open == '{' && ch == open) /* } */
5693 count++;
5694 else if MBTEST(((flags & P_FIRSTCLOSE) == 0) && ch == open) /* nested begin */
5695 count++;
5696
5697 /* Add this character. */
5698 RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64);
5699 ret[retind++] = ch;
5700
5701 /* If we just read the ending character, don't bother continuing. */
5702 if (count == 0)
5703 break;
5704
5705 if (open == '\'') /* '' inside grouping construct */
5706 {
5707 if MBTEST((flags & P_ALLOWESC) && ch == '\\')
5708 tflags |= LEX_PASSNEXT;
5709 continue;
5710 }
5711
5712 if MBTEST(ch == '\\') /* backslashes */
5713 tflags |= LEX_PASSNEXT;
5714
495aee44
CR		 5715 /* Based on which dolstate is currently in (param, op, or word),
5716 decide what the op is. We're really only concerned if it's % or
5717 #, so we can turn on a flag that says whether or not we should
5718 treat single quotes as special when inside a double-quoted
5719 ${...}. This logic must agree with subst.c:extract_dollar_brace_string
5720 since they share the same defines. */
ac50fbac 5721 /* FLAG POSIX INTERP 221 */
495aee44
CR		 5722 if (flags & P_DOLBRACE)
5723 {
5724 /* ${param%[%]word} */
5725 if MBTEST(dolbrace_state == DOLBRACE_PARAM && ch == '%' && retind > 1)
5726 dolbrace_state = DOLBRACE_QUOTE;
5727 /* ${param#[#]word} */
5728 else if MBTEST(dolbrace_state == DOLBRACE_PARAM && ch == '#' && retind > 1)
5729 dolbrace_state = DOLBRACE_QUOTE;
5730 /* ${param/[/]pat/rep} */
5731 else if MBTEST(dolbrace_state == DOLBRACE_PARAM && ch == '/' && retind > 1)
ac50fbac 5732 dolbrace_state = DOLBRACE_QUOTE2; /* XXX */
495aee44
CR		 5733 /* ${param^[^]pat} */
5734 else if MBTEST(dolbrace_state == DOLBRACE_PARAM && ch == '^' && retind > 1)
5735 dolbrace_state = DOLBRACE_QUOTE;
5736 /* ${param,[,]pat} */
5737 else if MBTEST(dolbrace_state == DOLBRACE_PARAM && ch == ',' && retind > 1)
5738 dolbrace_state = DOLBRACE_QUOTE;
5739 else if MBTEST(dolbrace_state == DOLBRACE_PARAM && strchr ("#%^,~:-=?+/", ch) != 0)
5740 dolbrace_state = DOLBRACE_OP;
5741 else if MBTEST(dolbrace_state == DOLBRACE_OP && strchr ("#%^,~:-=?+/", ch) == 0)
5742 dolbrace_state = DOLBRACE_WORD;
5743 }
5744
3185942a 5745 /* The big hammer. Single quotes aren't special in double quotes. The
495aee44 5746 problem is that Posix used to say the single quotes are semi-special:
3185942a
JA		 5747 within a double-quoted ${...} construct "an even number of
5748 unescaped double-quotes or single-quotes, if any, shall occur." */
495aee44 5749 /* This was changed in Austin Group Interp 221 */
bc63a081 5750 if MBTEST(posixly_correct && shell_compatibility_level > 41 && dolbrace_state != DOLBRACE_QUOTE && dolbrace_state != DOLBRACE_QUOTE2 && (flags & P_DQUOTE) && (flags & P_DOLBRACE) && ch == '\'')
3185942a 5751 continue;
3185942a
JA		 5752
5753 /* Could also check open == '`' if we want to parse grouping constructs
5754 inside old-style command substitution. */
5755 if (open != close) /* a grouping construct */
5756 {
5757 if MBTEST(shellquote (ch))
5758 {
5759 /* '', ``, or "" inside $(...) or other grouping construct. */
5760 push_delimiter (dstack, ch);
5761 if MBTEST((tflags & LEX_WASDOL) && ch == '\'') /* $'...' inside group */
5762 nestret = parse_matched_pair (ch, ch, ch, &nestlen, P_ALLOWESC|rflags);
5763 else
5764 nestret = parse_matched_pair (ch, ch, ch, &nestlen, rflags);
5765 pop_delimiter (dstack);
5766 CHECK_NESTRET_ERROR ();
5767
5768 if MBTEST((tflags & LEX_WASDOL) && ch == '\'' && (extended_quote || (rflags & P_DQUOTE) == 0))
5769 {
5770 /* Translate $'...' here. */
5771 ttrans = ansiexpand (nestret, 0, nestlen - 1, &ttranslen);
5772 xfree (nestret);
5773
ac50fbac
CR		 5774 /* If we're parsing a double-quoted brace expansion and we are
5775 not in a place where single quotes are treated specially,
5776 make sure we single-quote the results of the ansi
5777 expansion because quote removal should remove them later */
5778 /* FLAG POSIX INTERP 221 */
5779 if ((shell_compatibility_level > 42) && (rflags & P_DQUOTE) && (dolbrace_state == DOLBRACE_QUOTE2) && (flags & P_DOLBRACE))
5780 {
5781 nestret = sh_single_quote (ttrans);
5782 free (ttrans);
5783 nestlen = strlen (nestret);
5784 }
5785 else if ((rflags & P_DQUOTE) == 0)
3185942a
JA		 5786 {
5787 nestret = sh_single_quote (ttrans);
5788 free (ttrans);
5789 nestlen = strlen (nestret);
5790 }
5791 else
5792 {
5793 nestret = ttrans;
5794 nestlen = ttranslen;
5795 }
5796 retind -= 2; /* back up before the $' */
5797 }
5798 else if MBTEST((tflags & LEX_WASDOL) && ch == '"' && (extended_quote || (rflags & P_DQUOTE) == 0))
5799 {
5800 /* Locale expand $"..." here. */
5801 ttrans = localeexpand (nestret, 0, nestlen - 1, start_lineno, &ttranslen);
5802 xfree (nestret);
5803
5804 nestret = sh_mkdoublequoted (ttrans, ttranslen, 0);
5805 free (ttrans);
5806 nestlen = ttranslen + 2;
5807 retind -= 2; /* back up before the $" */
5808 }
5809
5810 APPEND_NESTRET ();
5811 FREE (nestret);
5812 }
0001803f
CR		 5813 else if ((flags & P_ARRAYSUB) && (tflags & LEX_WASDOL) && (ch == '(' || ch == '{' || ch == '[')) /* ) } ] */
5814 goto parse_dollar_word;
3185942a
JA		 5815 }
5816 /* Parse an old-style command substitution within double quotes as a
5817 single word. */
5818 /* XXX - sh and ksh93 don't do this - XXX */
5819 else if MBTEST(open == '"' && ch == '`')
5820 {
5821 nestret = parse_matched_pair (0, '`', '`', &nestlen, rflags);
5822
5823 CHECK_NESTRET_ERROR ();
5824 APPEND_NESTRET ();
5825
5826 FREE (nestret);
5827 }
5828 else if MBTEST(open != '`' && (tflags & LEX_WASDOL) && (ch == '(' || ch == '{' || ch == '[')) /* ) } ] */
5829 /* check for $(), $[], or ${} inside quoted string. */
5830 {
0001803f 5831parse_dollar_word:
3185942a
JA		 5832 if (open == ch) /* undo previous increment */
5833 count--;
5834 if (ch == '(') /* ) */
5835 nestret = parse_comsub (0, '(', ')', &nestlen, (rflags|P_COMMAND) & ~P_DQUOTE);
5836 else if (ch == '{') /* } */
495aee44 5837 nestret = parse_matched_pair (0, '{', '}', &nestlen, P_FIRSTCLOSE|P_DOLBRACE|rflags);
3185942a
JA		 5838 else if (ch == '[') /* ] */
5839 nestret = parse_matched_pair (0, '[', ']', &nestlen, rflags);
5840
5841 CHECK_NESTRET_ERROR ();
5842 APPEND_NESTRET ();
726f6388 5843
3185942a
JA		 5844 FREE (nestret);
5845 }
5846 if MBTEST(ch == '$')
5847 tflags |= LEX_WASDOL;
5848 else
5849 tflags &= ~LEX_WASDOL;
5850 }
726f6388 5851
3185942a
JA		 5852 ret[retind] = '\0';
5853 if (lenp)
5854 *lenp = retind;
0001803f 5855/*itrace("parse_matched_pair[%d]: returning %s", line_number, ret);*/
3185942a
JA		 5856 return ret;
5857}
726f6388 5858
3185942a
JA		 5859/* Parse a $(...) command substitution. This is messier than I'd like, and
5860 reproduces a lot more of the token-reading code than I'd like. */
28ef6c31 5861static char *
3185942a 5862parse_comsub (qc, open, close, lenp, flags)
28ef6c31
JA		 5863 int qc; /* `"' if this construct is within double quotes */
5864 int open, close;
5865 int *lenp, flags;
5866{
0001803f 5867 int count, ch, peekc, tflags, lex_rwlen, lex_wlen, lex_firstind;
3185942a
JA		 5868 int nestlen, ttranslen, start_lineno;
5869 char *ret, *nestret, *ttrans, *heredelim;
5870 int retind, retsize, rflags, hdlen;
ccc6cda3 5871
495aee44
CR		 5872 /* Posix interp 217 says arithmetic expressions have precedence, so
5873 assume $(( introduces arithmetic expansion and parse accordingly. */
5874 peekc = shell_getc (0);
5875 shell_ungetc (peekc);
5876 if (peekc == '(')
5877 return (parse_matched_pair (qc, open, close, lenp, 0));
5878
3185942a 5879/*itrace("parse_comsub: qc = `%c' open = %c close = %c", qc, open, close);*/
28ef6c31 5880 count = 1;
3185942a
JA		 5881 tflags = LEX_RESWDOK;
5882
5883 if ((flags & P_COMMAND) && qc != '\'' && qc != '"' && (flags & P_DQUOTE) == 0)
5884 tflags |= LEX_CKCASE;
5885 if ((tflags & LEX_CKCASE) && (interactive == 0 || interactive_comments))
5886 tflags |= LEX_CKCOMMENT;
d166f048 5887
b80f6443 5888 /* RFLAGS is the set of flags we want to pass to recursive calls. */
3185942a 5889 rflags = (flags & P_DQUOTE);
b80f6443 5890
f73dda09 5891 ret = (char *)xmalloc (retsize = 64);
28ef6c31
JA		 5892 retind = 0;
5893
5894 start_lineno = line_number;
0001803f 5895 lex_rwlen = lex_wlen = 0;
3185942a
JA		 5896
5897 heredelim = 0;
5898 lex_firstind = -1;
5899
28ef6c31
JA		 5900 while (count)
5901 {
3185942a 5902comsub_readchar:
495aee44 5903 ch = shell_getc (qc != '\'' && (tflags & (LEX_INCOMMENT|LEX_PASSNEXT)) == 0);
0628567a 5904
28ef6c31 5905 if (ch == EOF)
ccc6cda3 5906 {
3185942a 5907eof_error:
28ef6c31 5908 free (ret);
3185942a 5909 FREE (heredelim);
b80f6443 5910 parser_error (start_lineno, _("unexpected EOF while looking for matching `%c'"), close);
28ef6c31
JA		 5911 EOF_Reached = 1; /* XXX */
5912 return (&matched_pair_error);
ccc6cda3
JA		 5913 }
5914
3185942a
JA		 5915 /* If we hit the end of a line and are reading the contents of a here
5916 document, and it's not the same line that the document starts on,
5917 check for this line being the here doc delimiter. Otherwise, if
5918 we're in a here document, mark the next character as the beginning
5919 of a line. */
5920 if (ch == '\n')
5921 {
5922 if ((tflags & LEX_HEREDELIM) && heredelim)
5923 {
5924 tflags &= ~LEX_HEREDELIM;
5925 tflags |= LEX_INHEREDOC;
5926 lex_firstind = retind + 1;
5927 }
5928 else if (tflags & LEX_INHEREDOC)
5929 {
5930 int tind;
5931 tind = lex_firstind;
5932 while ((tflags & LEX_STRIPDOC) && ret[tind] == '\t')
5933 tind++;
5934 if (STREQN (ret + tind, heredelim, hdlen))
5935 {
5936 tflags &= ~(LEX_STRIPDOC|LEX_INHEREDOC);
5937/*itrace("parse_comsub:%d: found here doc end `%s'", line_number, ret + tind);*/
0001803f
CR		 5938 free (heredelim);
5939 heredelim = 0;
3185942a
JA		 5940 lex_firstind = -1;
5941 }
5942 else
5943 lex_firstind = retind + 1;
5944 }
5945 }
5946
28ef6c31 5947 /* Possible reprompting. */
b80f6443 5948 if (ch == '\n' && SHOULD_PROMPT ())
28ef6c31 5949 prompt_again ();
726f6388 5950
0001803f
CR		 5951 /* XXX -- possibly allow here doc to be delimited by ending right
5952 paren. */
5953 if ((tflags & LEX_INHEREDOC) && ch == close && count == 1)
5954 {
5955 int tind;
5956/*itrace("parse_comsub: in here doc, ch == close, retind - firstind = %d hdlen = %d retind = %d", retind-lex_firstind, hdlen, retind);*/
5957 tind = lex_firstind;
5958 while ((tflags & LEX_STRIPDOC) && ret[tind] == '\t')
5959 tind++;
5960 if (retind-tind == hdlen && STREQN (ret + tind, heredelim, hdlen))
5961 {
5962 tflags &= ~(LEX_STRIPDOC|LEX_INHEREDOC);
5963/*itrace("parse_comsub:%d: found here doc end `%s'", line_number, ret + tind);*/
5964 free (heredelim);
5965 heredelim = 0;
5966 lex_firstind = -1;
5967 }
5968 }
5969
3185942a
JA		 5970 /* Don't bother counting parens or doing anything else if in a comment */
5971 if (tflags & (LEX_INCOMMENT|LEX_INHEREDOC))
95732b49
JA		 5972 {
5973 /* Add this character. */
5974 RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64);
5975 ret[retind++] = ch;
5976
3185942a 5977 if ((tflags & LEX_INCOMMENT) && ch == '\n')
ac50fbac 5978 {
0001803f 5979/*itrace("parse_comsub:%d: lex_incomment -> 0 ch = `%c'", line_number, ch);*/
ac50fbac
CR		 5980 tflags &= ~LEX_INCOMMENT;
5981 }
95732b49
JA		 5982
5983 continue;
5984 }
95732b49 5985
0001803f
CR		 5986 if (tflags & LEX_PASSNEXT) /* last char was backslash */
5987 {
5988/*itrace("parse_comsub:%d: lex_passnext -> 0 ch = `%c' (%d)", line_number, ch, __LINE__);*/
5989 tflags &= ~LEX_PASSNEXT;
5990 if (qc != '\'' && ch == '\n') /* double-quoted \<newline> disappears. */
5991 {
5992 if (retind > 0)
5993 retind--; /* swallow previously-added backslash */
5994 continue;
5995 }
5996
5997 RESIZE_MALLOCED_BUFFER (ret, retind, 2, retsize, 64);
ac50fbac 5998 if MBTEST(ch == CTLESC)
0001803f
CR		 5999 ret[retind++] = CTLESC;
6000 ret[retind++] = ch;
6001 continue;
6002 }
6003
6004 /* If this is a shell break character, we are not in a word. If not,
6005 we either start or continue a word. */
6006 if MBTEST(shellbreak (ch))
6007 {
6008 tflags &= ~LEX_INWORD;
6009/*itrace("parse_comsub:%d: lex_inword -> 0 ch = `%c' (%d)", line_number, ch, __LINE__);*/
6010 }
6011 else
6012 {
6013 if (tflags & LEX_INWORD)
6014 {
6015 lex_wlen++;
6016/*itrace("parse_comsub:%d: lex_inword == 1 ch = `%c' lex_wlen = %d (%d)", line_number, ch, lex_wlen, __LINE__);*/
6017 }
6018 else
6019 {
6020/*itrace("parse_comsub:%d: lex_inword -> 1 ch = `%c' (%d)", line_number, ch, __LINE__);*/
6021 tflags |= LEX_INWORD;
6022 lex_wlen = 0;
6023 }
6024 }
6025
3185942a 6026 /* Skip whitespace */
495aee44 6027 if MBTEST(shellblank (ch) && (tflags & LEX_HEREDELIM) == 0 && lex_rwlen == 0)
3185942a
JA		 6028 {
6029 /* Add this character. */
6030 RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64);
6031 ret[retind++] = ch;
6032 continue;
6033 }
6034
6035 /* Either we are looking for the start of the here-doc delimiter
6036 (lex_firstind == -1) or we are reading one (lex_firstind >= 0).
6037 If this character is a shell break character and we are reading
6038 the delimiter, save it and note that we are now reading a here
6039 document. If we've found the start of the delimiter, note it by
6040 setting lex_firstind. Backslashes can quote shell metacharacters
6041 in here-doc delimiters. */
6042 if (tflags & LEX_HEREDELIM)
0628567a 6043 {
3185942a
JA		 6044 if (lex_firstind == -1 && shellbreak (ch) == 0)
6045 lex_firstind = retind;
0001803f
CR		 6046#if 0
6047 else if (heredelim && (tflags & LEX_PASSNEXT) == 0 && ch == '\n')
6048 {
6049 tflags |= LEX_INHEREDOC;
6050 tflags &= ~LEX_HEREDELIM;
6051 lex_firstind = retind + 1;
6052 }
6053#endif
3185942a
JA		 6054 else if (lex_firstind >= 0 && (tflags & LEX_PASSNEXT) == 0 && shellbreak (ch))
6055 {
0001803f
CR		 6056 if (heredelim == 0)
6057 {
6058 nestret = substring (ret, lex_firstind, retind);
6059 heredelim = string_quote_removal (nestret, 0);
6060 free (nestret);
6061 hdlen = STRLEN(heredelim);
3185942a 6062/*itrace("parse_comsub:%d: found here doc delimiter `%s' (%d)", line_number, heredelim, hdlen);*/
0001803f 6063 }
3185942a
JA		 6064 if (ch == '\n')
6065 {
6066 tflags |= LEX_INHEREDOC;
6067 tflags &= ~LEX_HEREDELIM;
6068 lex_firstind = retind + 1;
6069 }
6070 else
6071 lex_firstind = -1;
6072 }
0628567a
JA		 6073 }
6074
3185942a 6075 /* Meta-characters that can introduce a reserved word. Not perfect yet. */
0001803f 6076 if MBTEST((tflags & LEX_RESWDOK) == 0 && (tflags & LEX_CKCASE) && (tflags & LEX_INCOMMENT) == 0 && (shellmeta(ch) || ch == '\n'))
726f6388 6077 {
3185942a
JA		 6078 /* Add this character. */
6079 RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64);
6080 ret[retind++] = ch;
6081 peekc = shell_getc (1);
6082 if (ch == peekc && (ch == '&' || ch == '|' || ch == ';')) /* two-character tokens */
6083 {
6084 RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64);
6085 ret[retind++] = peekc;
0001803f 6086/*itrace("parse_comsub:%d: set lex_reswordok = 1, ch = `%c'", line_number, ch);*/
3185942a
JA		 6087 tflags |= LEX_RESWDOK;
6088 lex_rwlen = 0;
6089 continue;
6090 }
6091 else if (ch == '\n' || COMSUB_META(ch))
6092 {
6093 shell_ungetc (peekc);
3185942a 6094/*itrace("parse_comsub:%d: set lex_reswordok = 1, ch = `%c'", line_number, ch);*/
0001803f 6095 tflags |= LEX_RESWDOK;
3185942a
JA		 6096 lex_rwlen = 0;
6097 continue;
6098 }
6099 else if (ch == EOF)
6100 goto eof_error;
6101 else
6102 {
6103 /* `unget' the character we just added and fall through */
6104 retind--;
6105 shell_ungetc (peekc);
6106 }
6107 }
6108
6109 /* If we can read a reserved word, try to read one. */
6110 if (tflags & LEX_RESWDOK)
6111 {
6112 if MBTEST(islower (ch))
6113 {
6114 /* Add this character. */
6115 RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64);
6116 ret[retind++] = ch;
6117 lex_rwlen++;
6118 continue;
6119 }
6120 else if MBTEST(lex_rwlen == 4 && shellbreak (ch))
6121 {
6122 if (STREQN (ret + retind - 4, "case", 4))
ac50fbac
CR		 6123 {
6124 tflags |= LEX_INCASE;
0001803f 6125/*itrace("parse_comsub:%d: found `case', lex_incase -> 1 lex_reswdok -> 0", line_number);*/
ac50fbac 6126 }
3185942a 6127 else if (STREQN (ret + retind - 4, "esac", 4))
ac50fbac
CR		 6128 {
6129 tflags &= ~LEX_INCASE;
0001803f 6130/*itrace("parse_comsub:%d: found `esac', lex_incase -> 0 lex_reswdok -> 0", line_number);*/
ac50fbac 6131 }
3185942a
JA		 6132 tflags &= ~LEX_RESWDOK;
6133 }
0001803f
CR		 6134 else if MBTEST((tflags & LEX_CKCOMMENT) && ch == '#' && (lex_rwlen == 0 || ((tflags & LEX_INWORD) && lex_wlen == 0)))
6135 ; /* don't modify LEX_RESWDOK if we're starting a comment */
ac50fbac
CR		 6136 /* Allow `do' followed by space, tab, or newline to preserve the
6137 RESWDOK flag, but reset the reserved word length counter so we
6138 can read another one. */
6139 else if MBTEST(((tflags & LEX_INCASE) == 0) &&
6140 (isblank(ch) || ch == '\n') &&
6141 lex_rwlen == 2 &&
6142 STREQN (ret + retind - 2, "do", 2))
6143 {
6144/*itrace("parse_comsub:%d: lex_incase == 1 found `%c', found \"do\"", line_number, ch);*/
6145 lex_rwlen = 0;
6146 }
0001803f
CR		 6147 else if MBTEST((tflags & LEX_INCASE) && ch != '\n')
6148 /* If we can read a reserved word and we're in case, we're at the
6149 point where we can read a new pattern list or an esac. We
6150 handle the esac case above. If we read a newline, we want to
6151 leave LEX_RESWDOK alone. If we read anything else, we want to
6152 turn off LEX_RESWDOK, since we're going to read a pattern list. */
ac50fbac
CR		 6153 {
6154 tflags &= ~LEX_RESWDOK;
0001803f 6155/*itrace("parse_comsub:%d: lex_incase == 1 found `%c', lex_reswordok -> 0", line_number, ch);*/
ac50fbac 6156 }
0001803f 6157 else if MBTEST(shellbreak (ch) == 0)
ac50fbac
CR		 6158 {
6159 tflags &= ~LEX_RESWDOK;
3185942a 6160/*itrace("parse_comsub:%d: found `%c', lex_reswordok -> 0", line_number, ch);*/
ac50fbac
CR		 6161 }
6162#if 0
6163 /* If we find a space or tab but have read something and it's not
6164 `do', turn off the reserved-word-ok flag */
6165 else if MBTEST(isblank (ch) && lex_rwlen > 0)
6166 {
6167 tflags &= ~LEX_RESWDOK;
6168/*itrace("parse_comsub:%d: found `%c', lex_reswordok -> 0", line_number, ch);*/
6169 }
6170#endif
3185942a
JA		 6171 }
6172
0001803f 6173 /* Might be the start of a here-doc delimiter */
3185942a
JA		 6174 if MBTEST((tflags & LEX_INCOMMENT) == 0 && (tflags & LEX_CKCASE) && ch == '<')
6175 {
6176 /* Add this character. */
6177 RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64);
6178 ret[retind++] = ch;
6179 peekc = shell_getc (1);
6180 if (peekc == EOF)
6181 goto eof_error;
6182 if (peekc == ch)
6183 {
6184 RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64);
6185 ret[retind++] = peekc;
6186 peekc = shell_getc (1);
6187 if (peekc == EOF)
6188 goto eof_error;
6189 if (peekc == '-')
6190 {
6191 RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64);
6192 ret[retind++] = peekc;
6193 tflags |= LEX_STRIPDOC;
6194 }
6195 else
6196 shell_ungetc (peekc);
0001803f
CR		 6197 if (peekc != '<')
6198 {
6199 tflags |= LEX_HEREDELIM;
6200 lex_firstind = -1;
6201 }
3185942a
JA		 6202 continue;
6203 }
6204 else
0001803f 6205 ch = peekc; /* fall through and continue XXX */
3185942a 6206 }
0001803f 6207 else if MBTEST((tflags & LEX_CKCOMMENT) && (tflags & LEX_INCOMMENT) == 0 && ch == '#' && (((tflags & LEX_RESWDOK) && lex_rwlen == 0) || ((tflags & LEX_INWORD) && lex_wlen == 0)))
ac50fbac 6208 {
0001803f 6209/*itrace("parse_comsub:%d: lex_incomment -> 1 (%d)", line_number, __LINE__);*/
ac50fbac
CR		 6210 tflags |= LEX_INCOMMENT;
6211 }
3185942a 6212
0001803f 6213 if MBTEST(ch == CTLESC || ch == CTLNUL) /* special shell escapes */
726f6388 6214 {
28ef6c31
JA		 6215 RESIZE_MALLOCED_BUFFER (ret, retind, 2, retsize, 64);
6216 ret[retind++] = CTLESC;
6217 ret[retind++] = ch;
6218 continue;
726f6388 6219 }
3185942a
JA		 6220#if 0
6221 else if MBTEST((tflags & LEX_INCASE) && ch == close && close == ')')
6222 tflags &= ~LEX_INCASE; /* XXX */
6223#endif
6224 else if MBTEST(ch == close && (tflags & LEX_INCASE) == 0) /* ending delimiter */
ac50fbac
CR		 6225 {
6226 count--;
3185942a 6227/*itrace("parse_comsub:%d: found close: count = %d", line_number, count);*/
ac50fbac 6228 }
3185942a 6229 else if MBTEST(((flags & P_FIRSTCLOSE) == 0) && (tflags & LEX_INCASE) == 0 && ch == open) /* nested begin */
ac50fbac
CR		 6230 {
6231 count++;
0001803f 6232/*itrace("parse_comsub:%d: found open: count = %d", line_number, count);*/
ac50fbac 6233 }
726f6388 6234
28ef6c31
JA		 6235 /* Add this character. */
6236 RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64);
6237 ret[retind++] = ch;
6238
3185942a
JA		 6239 /* If we just read the ending character, don't bother continuing. */
6240 if (count == 0)
6241 break;
726f6388 6242
7117c2d2 6243 if MBTEST(ch == '\\') /* backslashes */
3185942a 6244 tflags |= LEX_PASSNEXT;
28ef6c31 6245
3185942a
JA		 6246 if MBTEST(shellquote (ch))
6247 {
6248 /* '', ``, or "" inside $(...). */
6249 push_delimiter (dstack, ch);
6250 if MBTEST((tflags & LEX_WASDOL) && ch == '\'') /* $'...' inside group */
6251 nestret = parse_matched_pair (ch, ch, ch, &nestlen, P_ALLOWESC|rflags);
6252 else
6253 nestret = parse_matched_pair (ch, ch, ch, &nestlen, rflags);
6254 pop_delimiter (dstack);
6255 CHECK_NESTRET_ERROR ();
6256
6257 if MBTEST((tflags & LEX_WASDOL) && ch == '\'' && (extended_quote || (rflags & P_DQUOTE) == 0))
28ef6c31 6258 {
3185942a
JA		 6259 /* Translate $'...' here. */
6260 ttrans = ansiexpand (nestret, 0, nestlen - 1, &ttranslen);
6261 xfree (nestret);
95732b49 6262
3185942a 6263 if ((rflags & P_DQUOTE) == 0)
28ef6c31 6264 {
3185942a 6265 nestret = sh_single_quote (ttrans);
28ef6c31 6266 free (ttrans);
3185942a 6267 nestlen = strlen (nestret);
28ef6c31 6268 }
3185942a 6269 else
28ef6c31 6270 {
3185942a
JA		 6271 nestret = ttrans;
6272 nestlen = ttranslen;
28ef6c31 6273 }
3185942a 6274 retind -= 2; /* back up before the $' */
28ef6c31 6275 }
3185942a 6276 else if MBTEST((tflags & LEX_WASDOL) && ch == '"' && (extended_quote || (rflags & P_DQUOTE) == 0))
28ef6c31 6277 {
3185942a
JA		 6278 /* Locale expand $"..." here. */
6279 ttrans = localeexpand (nestret, 0, nestlen - 1, start_lineno, &ttranslen);
6280 xfree (nestret);
6281
6282 nestret = sh_mkdoublequoted (ttrans, ttranslen, 0);
6283 free (ttrans);
6284 nestlen = ttranslen + 2;
6285 retind -= 2; /* back up before the $" */
28ef6c31 6286 }
3185942a
JA		 6287
6288 APPEND_NESTRET ();
28ef6c31
JA		 6289 FREE (nestret);
6290 }
3185942a
JA		 6291 else if MBTEST((tflags & LEX_WASDOL) && (ch == '(' || ch == '{' || ch == '[')) /* ) } ] */
6292 /* check for $(), $[], or ${} inside command substitution. */
28ef6c31 6293 {
3185942a 6294 if ((tflags & LEX_INCASE) == 0 && open == ch) /* undo previous increment */
28ef6c31
JA		 6295 count--;
6296 if (ch == '(') /* ) */
3185942a 6297 nestret = parse_comsub (0, '(', ')', &nestlen, (rflags|P_COMMAND) & ~P_DQUOTE);
28ef6c31 6298 else if (ch == '{') /* } */
495aee44 6299 nestret = parse_matched_pair (0, '{', '}', &nestlen, P_FIRSTCLOSE|P_DOLBRACE|rflags);
28ef6c31 6300 else if (ch == '[') /* ] */
b80f6443 6301 nestret = parse_matched_pair (0, '[', ']', &nestlen, rflags);
95732b49 6302
3185942a
JA		 6303 CHECK_NESTRET_ERROR ();
6304 APPEND_NESTRET ();
6305
6306 FREE (nestret);
726f6388 6307 }
3185942a
JA		 6308 if MBTEST(ch == '$')
6309 tflags |= LEX_WASDOL;
6310 else
6311 tflags &= ~LEX_WASDOL;
726f6388 6312 }
ccc6cda3 6313
3185942a 6314 FREE (heredelim);
28ef6c31
JA		 6315 ret[retind] = '\0';
6316 if (lenp)
6317 *lenp = retind;
3185942a
JA		 6318/*itrace("parse_comsub:%d: returning `%s'", line_number, ret);*/
6319 return ret;
6320}
6321
495aee44 6322/* Recursively call the parser to parse a $(...) command substitution. */
3185942a
JA		 6323char *
6324xparse_dolparen (base, string, indp, flags)
6325 char *base;
6326 char *string;
6327 int *indp;
6328 int flags;
6329{
6330 sh_parser_state_t ps;
509a4430 6331 sh_input_line_state_t ls;
ac50fbac 6332 int orig_ind, nc, sflags, orig_eof_token;
3185942a
JA		 6333 char *ret, *s, *ep, *ostring;
6334
6335 /*yydebug = 1;*/
6336 orig_ind = *indp;
6337 ostring = string;
6338
509a4430 6339/*itrace("xparse_dolparen: size = %d shell_input_line = `%s'", shell_input_line_size, shell_input_line);*/
3185942a
JA		 6340 sflags = SEVAL_NONINT|SEVAL_NOHIST|SEVAL_NOFREE;
6341 if (flags & SX_NOLONGJMP)
6342 sflags |= SEVAL_NOLONGJMP;
6343 save_parser_state (&ps);
509a4430 6344 save_input_line_state (&ls);
ac50fbac 6345 orig_eof_token = shell_eof_token;
3185942a
JA		 6346
6347 /*(*/
6348 parser_state |= PST_CMDSUBST|PST_EOFTOKEN; /* allow instant ')' */ /*(*/
6349 shell_eof_token = ')';
6350 parse_string (string, "command substitution", sflags, &ep);
6351
ac50fbac 6352 shell_eof_token = orig_eof_token;
3185942a
JA		 6353 restore_parser_state (&ps);
6354 reset_parser ();
509a4430
CR		 6355 /* reset_parser clears shell_input_line and associated variables */
6356 restore_input_line_state (&ls);
ca6a2ba4
CR		 6357
6358 token_to_read = 0;
3185942a
JA		 6359
6360 /* Need to find how many characters parse_and_execute consumed, update
6361 *indp, if flags != 0, copy the portion of the string parsed into RET
6362 and return it. If flags & 1 (EX_NOALLOC) we can return NULL. */
6363
6364 /*(*/
6365 if (ep[-1] != ')')
6366 {
6367#if DEBUG
6368 if (ep[-1] != '\n')
6369 itrace("xparse_dolparen:%d: ep[-1] != RPAREN (%d), ep = `%s'", line_number, ep[-1], ep);
6370#endif
6371 while (ep > ostring && ep[-1] == '\n') ep--;
6372 }
6373
6374 nc = ep - ostring;
6375 *indp = ep - base - 1;
6376
6377 /*(*/
6378#if DEBUG
6379 if (base[*indp] != ')')
6380 itrace("xparse_dolparen:%d: base[%d] != RPAREN (%d), base = `%s'", line_number, *indp, base[*indp], base);
6381#endif
6382
6383 if (flags & SX_NOALLOC)
6384 return (char *)NULL;
6385
6386 if (nc == 0)
6387 {
6388 ret = xmalloc (1);
6389 ret[0] = '\0';
6390 }
6391 else
6392 ret = substring (ostring, 0, nc - 1);
6393
28ef6c31
JA		 6394 return ret;
6395}
726f6388 6396
28ef6c31 6397#if defined (DPAREN_ARITHMETIC) || defined (ARITH_FOR_COMMAND)
7117c2d2
JA		 6398/* Parse a double-paren construct. It can be either an arithmetic
6399 command, an arithmetic `for' command, or a nested subshell. Returns
6400 the parsed token, -1 on error, or -2 if we didn't do anything and
6401 should just go on. */
6402static int
6403parse_dparen (c)
6404 int c;
6405{
0628567a
JA		 6406 int cmdtyp, sline;
6407 char *wval;
7117c2d2
JA		 6408 WORD_DESC *wd;
6409
6410#if defined (ARITH_FOR_COMMAND)
6411 if (last_read_token == FOR)
6412 {
6413 arith_for_lineno = line_number;
b80f6443 6414 cmdtyp = parse_arith_cmd (&wval, 0);
7117c2d2
JA		 6415 if (cmdtyp == 1)
6416 {
95732b49
JA		 6417 wd = alloc_word_desc ();
6418 wd->word = wval;
7117c2d2 6419 yylval.word_list = make_word_list (wd, (WORD_LIST *)NULL);
7117c2d2
JA		 6420 return (ARITH_FOR_EXPRS);
6421 }
6422 else
6423 return -1; /* ERROR */
6424 }
6425#endif
6426
6427#if defined (DPAREN_ARITHMETIC)
6428 if (reserved_word_acceptable (last_read_token))
6429 {
6430 sline = line_number;
95732b49 6431
b80f6443 6432 cmdtyp = parse_arith_cmd (&wval, 0);
7117c2d2
JA		 6433 if (cmdtyp == 1) /* arithmetic command */
6434 {
95732b49
JA		 6435 wd = alloc_word_desc ();
6436 wd->word = wval;
6437 wd->flags = W_QUOTED|W_NOSPLIT|W_NOGLOB|W_DQUOTE;
7117c2d2 6438 yylval.word_list = make_word_list (wd, (WORD_LIST *)NULL);
7117c2d2
JA		 6439 return (ARITH_CMD);
6440 }
6441 else if (cmdtyp == 0) /* nested subshell */
6442 {
6443 push_string (wval, 0, (alias_t *)NULL);
ac50fbac 6444 pushed_string_list->flags = PSH_DPAREN;
7117c2d2
JA		 6445 if ((parser_state & PST_CASEPAT) == 0)
6446 parser_state |= PST_SUBSHELL;
6447 return (c);
6448 }
6449 else /* ERROR */
6450 return -1;
6451 }
6452#endif
6453
6454 return -2; /* XXX */
6455}
6456
28ef6c31
JA		 6457/* We've seen a `(('. Look for the matching `))'. If we get it, return 1.
6458 If not, assume it's a nested subshell for backwards compatibility and
6459 return 0. In any case, put the characters we've consumed into a locally-
6460 allocated buffer and make *ep point to that buffer. Return -1 on an
6461 error, for example EOF. */
6462static int
b80f6443 6463parse_arith_cmd (ep, adddq)
28ef6c31 6464 char **ep;
b80f6443 6465 int adddq;
28ef6c31
JA		 6466{
6467 int exp_lineno, rval, c;
f73dda09 6468 char *ttok, *tokstr;
28ef6c31 6469 int ttoklen;
726f6388 6470
28ef6c31
JA		 6471 exp_lineno = line_number;
6472 ttok = parse_matched_pair (0, '(', ')', &ttoklen, 0);
6473 rval = 1;
6474 if (ttok == &matched_pair_error)
6475 return -1;
6476 /* Check that the next character is the closing right paren. If
6477 not, this is a syntax error. ( */
7117c2d2
JA		 6478 c = shell_getc (0);
6479 if MBTEST(c != ')')
28ef6c31
JA		 6480 rval = 0;
6481
f73dda09 6482 tokstr = (char *)xmalloc (ttoklen + 4);
28ef6c31 6483
b80f6443
JA		 6484 /* if ADDDQ != 0 then (( ... )) -> "..." */
6485 if (rval == 1 && adddq) /* arith cmd, add double quotes */
726f6388 6486 {
b80f6443
JA		 6487 tokstr[0] = '"';
6488 strncpy (tokstr + 1, ttok, ttoklen - 1);
f73dda09
JA		 6489 tokstr[ttoklen] = '"';
6490 tokstr[ttoklen+1] = '\0';
726f6388 6491 }
b80f6443
JA		 6492 else if (rval == 1) /* arith cmd, don't add double quotes */
6493 {
6494 strncpy (tokstr, ttok, ttoklen - 1);
6495 tokstr[ttoklen-1] = '\0';
6496 }
6497 else /* nested subshell */
726f6388 6498 {
b80f6443
JA		 6499 tokstr[0] = '(';
6500 strncpy (tokstr + 1, ttok, ttoklen - 1);
f73dda09
JA		 6501 tokstr[ttoklen] = ')';
6502 tokstr[ttoklen+1] = c;
6503 tokstr[ttoklen+2] = '\0';
726f6388 6504 }
b80f6443 6505
f73dda09 6506 *ep = tokstr;
28ef6c31
JA		 6507 FREE (ttok);
6508 return rval;
726f6388 6509}
28ef6c31 6510#endif /* DPAREN_ARITHMETIC || ARITH_FOR_COMMAND */
726f6388 6511
28ef6c31 6512#if defined (COND_COMMAND)
7117c2d2
JA		 6513static void
6514cond_error ()
6515{
6516 char *etext;
6517
6518 if (EOF_Reached && cond_token != COND_ERROR) /* [[ */
b80f6443 6519 parser_error (cond_lineno, _("unexpected EOF while looking for `]]'"));
7117c2d2
JA		 6520 else if (cond_token != COND_ERROR)
6521 {
6522 if (etext = error_token_from_token (cond_token))
6523 {
b80f6443 6524 parser_error (cond_lineno, _("syntax error in conditional expression: unexpected token `%s'"), etext);
7117c2d2
JA		 6525 free (etext);
6526 }
6527 else
b80f6443 6528 parser_error (cond_lineno, _("syntax error in conditional expression"));
7117c2d2
JA		 6529 }
6530}
6531
28ef6c31
JA		 6532static COND_COM *
6533cond_expr ()
ccc6cda3 6534{
28ef6c31 6535 return (cond_or ());
ccc6cda3
JA		 6536}
6537
28ef6c31
JA		 6538static COND_COM *
6539cond_or ()
726f6388 6540{
28ef6c31 6541 COND_COM *l, *r;
726f6388 6542
28ef6c31
JA		 6543 l = cond_and ();
6544 if (cond_token == OR_OR)
6545 {
6546 r = cond_or ();
6547 l = make_cond_node (COND_OR, (WORD_DESC *)NULL, l, r);
6548 }
6549 return l;
726f6388 6550}
726f6388 6551
28ef6c31
JA		 6552static COND_COM *
6553cond_and ()
726f6388 6554{
28ef6c31 6555 COND_COM *l, *r;
726f6388 6556
28ef6c31
JA		 6557 l = cond_term ();
6558 if (cond_token == AND_AND)
6559 {
6560 r = cond_and ();
6561 l = make_cond_node (COND_AND, (WORD_DESC *)NULL, l, r);
6562 }
6563 return l;
726f6388
JA		 6564}
6565
ccc6cda3 6566static int
28ef6c31 6567cond_skip_newlines ()
726f6388 6568{
28ef6c31 6569 while ((cond_token = read_token (READ)) == '\n')
726f6388 6570 {
b80f6443 6571 if (SHOULD_PROMPT ())
726f6388
JA		 6572 prompt_again ();
6573 }
28ef6c31 6574 return (cond_token);
726f6388
JA		 6575}
6576
28ef6c31
JA		 6577#define COND_RETURN_ERROR() \
6578 do { cond_token = COND_ERROR; return ((COND_COM *)NULL); } while (0)
726f6388 6579
28ef6c31
JA		 6580static COND_COM *
6581cond_term ()
726f6388 6582{
28ef6c31
JA		 6583 WORD_DESC *op;
6584 COND_COM *term, *tleft, *tright;
6585 int tok, lineno;
7117c2d2 6586 char *etext;
28ef6c31
JA		 6587
6588 /* Read a token. It can be a left paren, a `!', a unary operator, or a
6589 word that should be the first argument of a binary operator. Start by
6590 skipping newlines, since this is a compound command. */
6591 tok = cond_skip_newlines ();
6592 lineno = line_number;
6593 if (tok == COND_END)
726f6388 6594 {
28ef6c31 6595 COND_RETURN_ERROR ();
726f6388 6596 }
28ef6c31
JA		 6597 else if (tok == '(')
6598 {
6599 term = cond_expr ();
6600 if (cond_token != ')')
6601 {
6602 if (term)
6603 dispose_cond_node (term); /* ( */
7117c2d2
JA		 6604 if (etext = error_token_from_token (cond_token))
6605 {
b80f6443 6606 parser_error (lineno, _("unexpected token `%s', expected `)'"), etext);
7117c2d2
JA		 6607 free (etext);
6608 }
6609 else
b80f6443 6610 parser_error (lineno, _("expected `)'"));
28ef6c31
JA		 6611 COND_RETURN_ERROR ();
6612 }
6613 term = make_cond_node (COND_EXPR, (WORD_DESC *)NULL, term, (COND_COM *)NULL);
6614 (void)cond_skip_newlines ();
6615 }
6616 else if (tok == BANG || (tok == WORD && (yylval.word->word[0] == '!' && yylval.word->word[1] == '\0')))
6617 {
6618 if (tok == WORD)
6619 dispose_word (yylval.word); /* not needed */
6620 term = cond_term ();
6621 if (term)
6622 term->flags |= CMD_INVERT_RETURN;
6623 }
3185942a 6624 else if (tok == WORD && yylval.word->word[0] == '-' && yylval.word->word[2] == 0 && test_unop (yylval.word->word))
28ef6c31
JA		 6625 {
6626 op = yylval.word;
6627 tok = read_token (READ);
6628 if (tok == WORD)
6629 {
6630 tleft = make_cond_node (COND_TERM, yylval.word, (COND_COM *)NULL, (COND_COM *)NULL);
6631 term = make_cond_node (COND_UNARY, op, tleft, (COND_COM *)NULL);
6632 }
6633 else
6634 {
6635 dispose_word (op);
7117c2d2
JA		 6636 if (etext = error_token_from_token (tok))
6637 {
b80f6443 6638 parser_error (line_number, _("unexpected argument `%s' to conditional unary operator"), etext);
7117c2d2
JA		 6639 free (etext);
6640 }
6641 else
b80f6443 6642 parser_error (line_number, _("unexpected argument to conditional unary operator"));
28ef6c31
JA		 6643 COND_RETURN_ERROR ();
6644 }
726f6388 6645
28ef6c31
JA		 6646 (void)cond_skip_newlines ();
6647 }
6648 else if (tok == WORD) /* left argument to binary operator */
6649 {
6650 /* lhs */
6651 tleft = make_cond_node (COND_TERM, yylval.word, (COND_COM *)NULL, (COND_COM *)NULL);
726f6388 6652
28ef6c31
JA		 6653 /* binop */
6654 tok = read_token (READ);
6655 if (tok == WORD && test_binop (yylval.word->word))
0001803f
CR		 6656 {
6657 op = yylval.word;
6658 if (op->word[0] == '=' && (op->word[1] == '\0' || (op->word[1] == '=' && op->word[2] == '\0')))
6659 parser_state |= PST_EXTPAT;
6660 else if (op->word[0] == '!' && op->word[1] == '=' && op->word[2] == '\0')
6661 parser_state |= PST_EXTPAT;
6662 }
b80f6443 6663#if defined (COND_REGEXP)
3185942a
JA		 6664 else if (tok == WORD && STREQ (yylval.word->word, "=~"))
6665 {
6666 op = yylval.word;
6667 parser_state |= PST_REGEXP;
6668 }
b80f6443 6669#endif
28ef6c31
JA		 6670 else if (tok == '<' || tok == '>')
6671 op = make_word_from_token (tok); /* ( */
6672 /* There should be a check before blindly accepting the `)' that we have
6673 seen the opening `('. */
6674 else if (tok == COND_END || tok == AND_AND || tok == OR_OR || tok == ')')
6675 {
6676 /* Special case. [[ x ]] is equivalent to [[ -n x ]], just like
6677 the test command. Similarly for [[ x && expr ]] or
6678 [[ x || expr ]] or [[ (x) ]]. */
6679 op = make_word ("-n");
6680 term = make_cond_node (COND_UNARY, op, tleft, (COND_COM *)NULL);
6681 cond_token = tok;
6682 return (term);
6683 }
6684 else
6685 {
7117c2d2
JA		 6686 if (etext = error_token_from_token (tok))
6687 {
b80f6443 6688 parser_error (line_number, _("unexpected token `%s', conditional binary operator expected"), etext);
7117c2d2
JA		 6689 free (etext);
6690 }
6691 else
b80f6443 6692 parser_error (line_number, _("conditional binary operator expected"));
28ef6c31
JA		 6693 dispose_cond_node (tleft);
6694 COND_RETURN_ERROR ();
6695 }
726f6388 6696
28ef6c31 6697 /* rhs */
0001803f
CR		 6698 if (parser_state & PST_EXTPAT)
6699 extended_glob = 1;
28ef6c31 6700 tok = read_token (READ);
0001803f
CR		 6701 if (parser_state & PST_EXTPAT)
6702 extended_glob = global_extglob;
6703 parser_state &= ~(PST_REGEXP|PST_EXTPAT);
6704
28ef6c31
JA		 6705 if (tok == WORD)
6706 {
6707 tright = make_cond_node (COND_TERM, yylval.word, (COND_COM *)NULL, (COND_COM *)NULL);
6708 term = make_cond_node (COND_BINARY, op, tleft, tright);
6709 }
6710 else
6711 {
7117c2d2
JA		 6712 if (etext = error_token_from_token (tok))
6713 {
b80f6443 6714 parser_error (line_number, _("unexpected argument `%s' to conditional binary operator"), etext);
7117c2d2
JA		 6715 free (etext);
6716 }
6717 else
b80f6443 6718 parser_error (line_number, _("unexpected argument to conditional binary operator"));
28ef6c31
JA		 6719 dispose_cond_node (tleft);
6720 dispose_word (op);
6721 COND_RETURN_ERROR ();
6722 }
726f6388 6723
28ef6c31
JA		 6724 (void)cond_skip_newlines ();
6725 }
6726 else
6727 {
6728 if (tok < 256)
b80f6443 6729 parser_error (line_number, _("unexpected token `%c' in conditional command"), tok);
7117c2d2
JA		 6730 else if (etext = error_token_from_token (tok))
6731 {
b80f6443 6732 parser_error (line_number, _("unexpected token `%s' in conditional command"), etext);
7117c2d2
JA		 6733 free (etext);
6734 }
28ef6c31 6735 else
b80f6443 6736 parser_error (line_number, _("unexpected token %d in conditional command"), tok);
28ef6c31
JA		 6737 COND_RETURN_ERROR ();
6738 }
6739 return (term);
6740}
ccc6cda3 6741
28ef6c31
JA		 6742/* This is kind of bogus -- we slip a mini recursive-descent parser in
6743 here to handle the conditional statement syntax. */
6744static COMMAND *
6745parse_cond_command ()
6746{
6747 COND_COM *cexp;
ccc6cda3 6748
0001803f 6749 global_extglob = extended_glob;
28ef6c31
JA		 6750 cexp = cond_expr ();
6751 return (make_cond_command (cexp));
6752}
6753#endif
ccc6cda3 6754
7117c2d2
JA		 6755#if defined (ARRAY_VARS)
6756/* When this is called, it's guaranteed that we don't care about anything
6757 in t beyond i. We do save and restore the chars, though. */
6758static int
6759token_is_assignment (t, i)
6760 char *t;
6761 int i;
6762{
6763 unsigned char c, c1;
6764 int r;
6765
6766 c = t[i]; c1 = t[i+1];
6767 t[i] = '='; t[i+1] = '\0';
b80f6443 6768 r = assignment (t, (parser_state & PST_COMPASSIGN) != 0);
7117c2d2
JA		 6769 t[i] = c; t[i+1] = c1;
6770 return r;
6771}
6772
95732b49 6773/* XXX - possible changes here for `+=' */
7117c2d2
JA		 6774static int
6775token_is_ident (t, i)
6776 char *t;
6777 int i;
6778{
6779 unsigned char c;
6780 int r;
6781
6782 c = t[i];
6783 t[i] = '\0';
6784 r = legal_identifier (t);
6785 t[i] = c;
6786 return r;
6787}
6788#endif
6789
726f6388 6790static int
28ef6c31
JA		 6791read_token_word (character)
6792 int character;
726f6388 6793{
28ef6c31
JA		 6794 /* The value for YYLVAL when a WORD is read. */
6795 WORD_DESC *the_word;
726f6388 6796
28ef6c31
JA		 6797 /* Index into the token that we are building. */
6798 int token_index;
ccc6cda3 6799
28ef6c31 6800 /* ALL_DIGITS becomes zero when we see a non-digit. */
f73dda09 6801 int all_digit_token;
ccc6cda3 6802
28ef6c31
JA		 6803 /* DOLLAR_PRESENT becomes non-zero if we see a `$'. */
6804 int dollar_present;
cce855bc 6805
95732b49
JA		 6806 /* COMPOUND_ASSIGNMENT becomes non-zero if we are parsing a compound
6807 assignment. */
6808 int compound_assignment;
6809
28ef6c31
JA		 6810 /* QUOTED becomes non-zero if we see one of ("), ('), (`), or (\). */
6811 int quoted;
cce855bc 6812
28ef6c31
JA		 6813 /* Non-zero means to ignore the value of the next character, and just
6814 to add it no matter what. */
6815 int pass_next_character;
cce855bc 6816
28ef6c31
JA		 6817 /* The current delimiting character. */
6818 int cd;
6819 int result, peek_char;
6820 char *ttok, *ttrans;
6821 int ttoklen, ttranslen;
7117c2d2 6822 intmax_t lvalue;
ccc6cda3 6823
28ef6c31 6824 if (token_buffer_size < TOKEN_DEFAULT_INITIAL_SIZE)
f73dda09 6825 token = (char *)xrealloc (token, token_buffer_size = TOKEN_DEFAULT_INITIAL_SIZE);
726f6388 6826
28ef6c31 6827 token_index = 0;
f73dda09 6828 all_digit_token = DIGIT (character);
95732b49 6829 dollar_present = quoted = pass_next_character = compound_assignment = 0;
ccc6cda3 6830
28ef6c31 6831 for (;;)
ccc6cda3 6832 {
28ef6c31
JA		 6833 if (character == EOF)
6834 goto got_token;
726f6388 6835
28ef6c31 6836 if (pass_next_character)
726f6388 6837 {
28ef6c31 6838 pass_next_character = 0;
3185942a 6839 goto got_escaped_character;
726f6388 6840 }
726f6388 6841
28ef6c31 6842 cd = current_delimiter (dstack);
ccc6cda3 6843
28ef6c31
JA		 6844 /* Handle backslashes. Quote lots of things when not inside of
6845 double-quotes, quote some things inside of double-quotes. */
7117c2d2 6846 if MBTEST(character == '\\')
28ef6c31
JA		 6847 {
6848 peek_char = shell_getc (0);
ccc6cda3 6849
28ef6c31
JA		 6850 /* Backslash-newline is ignored in all cases except
6851 when quoted with single quotes. */
6852 if (peek_char == '\n')
6853 {
6854 character = '\n';
6855 goto next_character;
6856 }
6857 else
6858 {
6859 shell_ungetc (peek_char);
ccc6cda3 6860
28ef6c31
JA		 6861 /* If the next character is to be quoted, note it now. */
6862 if (cd == 0 || cd == '`' ||
f73dda09 6863 (cd == '"' && peek_char >= 0 && (sh_syntaxtab[peek_char] & CBSDQUOTE)))
28ef6c31 6864 pass_next_character++;
ccc6cda3 6865
28ef6c31
JA		 6866 quoted = 1;
6867 goto got_character;
6868 }
6869 }
726f6388 6870
28ef6c31 6871 /* Parse a matched pair of quote characters. */
7117c2d2 6872 if MBTEST(shellquote (character))
d166f048 6873 {
28ef6c31 6874 push_delimiter (dstack, character);
95732b49 6875 ttok = parse_matched_pair (character, character, character, &ttoklen, (character == '`') ? P_COMMAND : 0);
28ef6c31
JA		 6876 pop_delimiter (dstack);
6877 if (ttok == &matched_pair_error)
6878 return -1; /* Bail immediately. */
6879 RESIZE_MALLOCED_BUFFER (token, token_index, ttoklen + 2,
6880 token_buffer_size, TOKEN_DEFAULT_GROW_SIZE);
6881 token[token_index++] = character;
6882 strcpy (token + token_index, ttok);
6883 token_index += ttoklen;
f73dda09 6884 all_digit_token = 0;
28ef6c31
JA		 6885 quoted = 1;
6886 dollar_present |= (character == '"' && strchr (ttok, '$') != 0);
6887 FREE (ttok);
6888 goto next_character;
d166f048 6889 }
726f6388 6890
3185942a
JA		 6891#ifdef COND_REGEXP
6892 /* When parsing a regexp as a single word inside a conditional command,
6893 we need to special-case characters special to both the shell and
6894 regular expressions. Right now, that is only '(' and '|'. */ /*)*/
6895 if MBTEST((parser_state & PST_REGEXP) && (character == '(' || character == '|')) /*)*/
6896 {
6897 if (character == '|')
6898 goto got_character;
6899
6900 push_delimiter (dstack, character);
6901 ttok = parse_matched_pair (cd, '(', ')', &ttoklen, 0);
6902 pop_delimiter (dstack);
6903 if (ttok == &matched_pair_error)
6904 return -1; /* Bail immediately. */
6905 RESIZE_MALLOCED_BUFFER (token, token_index, ttoklen + 2,
6906 token_buffer_size, TOKEN_DEFAULT_GROW_SIZE);
6907 token[token_index++] = character;
6908 strcpy (token + token_index, ttok);
6909 token_index += ttoklen;
6910 FREE (ttok);
6911 dollar_present = all_digit_token = 0;
6912 goto next_character;
6913 }
6914#endif /* COND_REGEXP */
6915
28ef6c31
JA		 6916#ifdef EXTENDED_GLOB
6917 /* Parse a ksh-style extended pattern matching specification. */
3185942a 6918 if MBTEST(extended_glob && PATTERN_CHAR (character))
cce855bc 6919 {
28ef6c31 6920 peek_char = shell_getc (1);
7117c2d2 6921 if MBTEST(peek_char == '(') /* ) */
28ef6c31
JA		 6922 {
6923 push_delimiter (dstack, peek_char);
6924 ttok = parse_matched_pair (cd, '(', ')', &ttoklen, 0);
6925 pop_delimiter (dstack);
6926 if (ttok == &matched_pair_error)
6927 return -1; /* Bail immediately. */
ac50fbac 6928 RESIZE_MALLOCED_BUFFER (token, token_index, ttoklen + 3,
28ef6c31
JA		 6929 token_buffer_size,
6930 TOKEN_DEFAULT_GROW_SIZE);
6931 token[token_index++] = character;
6932 token[token_index++] = peek_char;
6933 strcpy (token + token_index, ttok);
6934 token_index += ttoklen;
6935 FREE (ttok);
f73dda09 6936 dollar_present = all_digit_token = 0;
28ef6c31
JA		 6937 goto next_character;
6938 }
6939 else
6940 shell_ungetc (peek_char);
6941 }
6942#endif /* EXTENDED_GLOB */
726f6388 6943
28ef6c31
JA		 6944 /* If the delimiter character is not single quote, parse some of
6945 the shell expansions that must be read as a single word. */
6946 if (shellexp (character))
6947 {
6948 peek_char = shell_getc (1);
6949 /* $(...), <(...), >(...), $((...)), ${...}, and $[...] constructs */
ac50fbac 6950 if MBTEST(peek_char == '(' ||
28ef6c31
JA		 6951 ((peek_char == '{' || peek_char == '[') && character == '$')) /* ) ] } */
6952 {
6953 if (peek_char == '{') /* } */
495aee44 6954 ttok = parse_matched_pair (cd, '{', '}', &ttoklen, P_FIRSTCLOSE|P_DOLBRACE);
28ef6c31
JA		 6955 else if (peek_char == '(') /* ) */
6956 {
6957 /* XXX - push and pop the `(' as a delimiter for use by
6958 the command-oriented-history code. This way newlines
6959 appearing in the $(...) string get added to the
6960 history literally rather than causing a possibly-
6961 incorrect `;' to be added. ) */
6962 push_delimiter (dstack, peek_char);
3185942a 6963 ttok = parse_comsub (cd, '(', ')', &ttoklen, P_COMMAND);
28ef6c31
JA		 6964 pop_delimiter (dstack);
6965 }
6966 else
6967 ttok = parse_matched_pair (cd, '[', ']', &ttoklen, 0);
6968 if (ttok == &matched_pair_error)
6969 return -1; /* Bail immediately. */
ac50fbac 6970 RESIZE_MALLOCED_BUFFER (token, token_index, ttoklen + 3,
28ef6c31
JA		 6971 token_buffer_size,
6972 TOKEN_DEFAULT_GROW_SIZE);
6973 token[token_index++] = character;
6974 token[token_index++] = peek_char;
6975 strcpy (token + token_index, ttok);
6976 token_index += ttoklen;
6977 FREE (ttok);
6978 dollar_present = 1;
f73dda09 6979 all_digit_token = 0;
28ef6c31
JA		 6980 goto next_character;
6981 }
6982 /* This handles $'...' and $"..." new-style quoted strings. */
7117c2d2 6983 else if MBTEST(character == '$' && (peek_char == '\'' || peek_char == '"'))
28ef6c31
JA		 6984 {
6985 int first_line;
726f6388 6986
28ef6c31
JA		 6987 first_line = line_number;
6988 push_delimiter (dstack, peek_char);
6989 ttok = parse_matched_pair (peek_char, peek_char, peek_char,
6990 &ttoklen,
6991 (peek_char == '\'') ? P_ALLOWESC : 0);
6992 pop_delimiter (dstack);
6993 if (ttok == &matched_pair_error)
6994 return -1;
6995 if (peek_char == '\'')
6996 {
6997 ttrans = ansiexpand (ttok, 0, ttoklen - 1, &ttranslen);
6998 free (ttok);
95732b49 6999
28ef6c31
JA		 7000 /* Insert the single quotes and correctly quote any
7001 embedded single quotes (allowed because P_ALLOWESC was
7002 passed to parse_matched_pair). */
7003 ttok = sh_single_quote (ttrans);
7004 free (ttrans);
95732b49 7005 ttranslen = strlen (ttok);
28ef6c31 7006 ttrans = ttok;
28ef6c31
JA		 7007 }
7008 else
7009 {
0628567a 7010 /* Try to locale-expand the converted string. */
28ef6c31
JA		 7011 ttrans = localeexpand (ttok, 0, ttoklen - 1, first_line, &ttranslen);
7012 free (ttok);
726f6388 7013
28ef6c31 7014 /* Add the double quotes back */
95732b49 7015 ttok = sh_mkdoublequoted (ttrans, ttranslen, 0);
28ef6c31 7016 free (ttrans);
95732b49 7017 ttranslen += 2;
28ef6c31
JA		 7018 ttrans = ttok;
7019 }
726f6388 7020
ac50fbac 7021 RESIZE_MALLOCED_BUFFER (token, token_index, ttranslen + 1,
f73dda09
JA		 7022 token_buffer_size,
7023 TOKEN_DEFAULT_GROW_SIZE);
7024 strcpy (token + token_index, ttrans);
7025 token_index += ttranslen;
7026 FREE (ttrans);
7027 quoted = 1;
7028 all_digit_token = 0;
7029 goto next_character;
7030 }
7031 /* This could eventually be extended to recognize all of the
7032 shell's single-character parameter expansions, and set flags.*/
7117c2d2 7033 else if MBTEST(character == '$' && peek_char == '$')
f73dda09 7034 {
f73dda09
JA		 7035 RESIZE_MALLOCED_BUFFER (token, token_index, 3,
7036 token_buffer_size,
7037 TOKEN_DEFAULT_GROW_SIZE);
ac50fbac
CR		 7038 token[token_index++] = '$';
7039 token[token_index++] = peek_char;
f73dda09
JA		 7040 dollar_present = 1;
7041 all_digit_token = 0;
f73dda09
JA		 7042 goto next_character;
7043 }
7044 else
7045 shell_ungetc (peek_char);
7046 }
28ef6c31 7047
f73dda09 7048#if defined (ARRAY_VARS)
3185942a
JA		 7049 /* Identify possible array subscript assignment; match [...]. If
7050 parser_state&PST_COMPASSIGN, we need to parse [sub]=words treating
7051 `sub' as if it were enclosed in double quotes. */
7052 else if MBTEST(character == '[' && /* ] */
7053 ((token_index > 0 && assignment_acceptable (last_read_token) && token_is_ident (token, token_index)) ||
7054 (token_index == 0 && (parser_state&PST_COMPASSIGN))))
7117c2d2 7055 {
0001803f 7056 ttok = parse_matched_pair (cd, '[', ']', &ttoklen, P_ARRAYSUB);
7117c2d2
JA		 7057 if (ttok == &matched_pair_error)
7058 return -1; /* Bail immediately. */
7059 RESIZE_MALLOCED_BUFFER (token, token_index, ttoklen + 2,
7060 token_buffer_size,
7061 TOKEN_DEFAULT_GROW_SIZE);
7062 token[token_index++] = character;
7063 strcpy (token + token_index, ttok);
7064 token_index += ttoklen;
7065 FREE (ttok);
7066 all_digit_token = 0;
7067 goto next_character;
7068 }
f73dda09 7069 /* Identify possible compound array variable assignment. */
95732b49 7070 else if MBTEST(character == '=' && token_index > 0 && (assignment_acceptable (last_read_token) || (parser_state & PST_ASSIGNOK)) && token_is_assignment (token, token_index))
ccc6cda3 7071 {
f73dda09 7072 peek_char = shell_getc (1);
7117c2d2 7073 if MBTEST(peek_char == '(') /* ) */
f73dda09 7074 {
7117c2d2
JA		 7075 ttok = parse_compound_assignment (&ttoklen);
7076
7077 RESIZE_MALLOCED_BUFFER (token, token_index, ttoklen + 4,
f73dda09
JA		 7078 token_buffer_size,
7079 TOKEN_DEFAULT_GROW_SIZE);
7117c2d2
JA		 7080
7081 token[token_index++] = '=';
7082 token[token_index++] = '(';
7083 if (ttok)
7084 {
7085 strcpy (token + token_index, ttok);
7086 token_index += ttoklen;
7087 }
7088 token[token_index++] = ')';
f73dda09
JA		 7089 FREE (ttok);
7090 all_digit_token = 0;
95732b49 7091 compound_assignment = 1;
0628567a 7092#if 1
f73dda09 7093 goto next_character;
95732b49
JA		 7094#else
7095 goto got_token; /* ksh93 seems to do this */
7096#endif
f73dda09
JA		 7097 }
7098 else
7099 shell_ungetc (peek_char);
ccc6cda3 7100 }
f73dda09 7101#endif
726f6388 7102
f73dda09
JA		 7103 /* When not parsing a multi-character word construct, shell meta-
7104 characters break words. */
7117c2d2 7105 if MBTEST(shellbreak (character))
f73dda09
JA		 7106 {
7107 shell_ungetc (character);
7108 goto got_token;
7109 }
726f6388 7110
ac50fbac 7111got_character:
726f6388 7112
f73dda09 7113 if (character == CTLESC || character == CTLNUL)
ac50fbac
CR		 7114 {
7115 RESIZE_MALLOCED_BUFFER (token, token_index, 2, token_buffer_size,
7116 TOKEN_DEFAULT_GROW_SIZE);
7117 token[token_index++] = CTLESC;
7118 }
7119 else
7120got_escaped_character:
7121 RESIZE_MALLOCED_BUFFER (token, token_index, 1, token_buffer_size,
7122 TOKEN_DEFAULT_GROW_SIZE);
d166f048 7123
ac50fbac 7124 token[token_index++] = character;
3185942a
JA		 7125
7126 all_digit_token &= DIGIT (character);
7127 dollar_present |= character == '$';
7128
f73dda09 7129 next_character:
b80f6443 7130 if (character == '\n' && SHOULD_PROMPT ())
f73dda09 7131 prompt_again ();
cce855bc 7132
f73dda09
JA		 7133 /* We want to remove quoted newlines (that is, a \<newline> pair)
7134 unless we are within single quotes or pass_next_character is
7135 set (the shell equivalent of literal-next). */
7136 cd = current_delimiter (dstack);
7137 character = shell_getc (cd != '\'' && pass_next_character == 0);
7138 } /* end for (;;) */
cce855bc 7139
f73dda09 7140got_token:
cce855bc 7141
ac50fbac 7142 /* Calls to RESIZE_MALLOCED_BUFFER ensure there is sufficient room. */
f73dda09 7143 token[token_index] = '\0';
28ef6c31 7144
f73dda09
JA		 7145 /* Check to see what thing we should return. If the last_read_token
7146 is a `<', or a `&', or the character which ended this token is
7147 a '>' or '<', then, and ONLY then, is this input token a NUMBER.
7148 Otherwise, it is just a word, and should be returned as such. */
ac50fbac
CR		 7149 if MBTEST(all_digit_token && (character == '<' || character == '>' ||
7150 last_read_token == LESS_AND ||
f73dda09
JA		 7151 last_read_token == GREATER_AND))
7152 {
7153 if (legal_number (token, &lvalue) && (int)lvalue == lvalue)
ac50fbac
CR		 7154 {
7155 yylval.number = lvalue;
7156 return (NUMBER);
7157 }
f73dda09 7158 }
cce855bc 7159
f73dda09 7160 /* Check for special case tokens. */
7117c2d2 7161 result = (last_shell_getc_is_singlebyte) ? special_case_tokens (token) : -1;
f73dda09
JA		 7162 if (result >= 0)
7163 return result;
cce855bc 7164
f73dda09
JA		 7165#if defined (ALIAS)
7166 /* Posix.2 does not allow reserved words to be aliased, so check for all
7167 of them, including special cases, before expanding the current token
7168 as an alias. */
7117c2d2 7169 if MBTEST(posixly_correct)
f73dda09 7170 CHECK_FOR_RESERVED_WORD (token);
cce855bc 7171
f73dda09
JA		 7172 /* Aliases are expanded iff EXPAND_ALIASES is non-zero, and quoting
7173 inhibits alias expansion. */
7174 if (expand_aliases && quoted == 0)
cce855bc 7175 {
f73dda09
JA		 7176 result = alias_expand_token (token);
7177 if (result == RE_READ_TOKEN)
7178 return (RE_READ_TOKEN);
7179 else if (result == NO_EXPANSION)
7180 parser_state &= ~PST_ALEXPNEXT;
cce855bc 7181 }
28ef6c31 7182
f73dda09
JA		 7183 /* If not in Posix.2 mode, check for reserved words after alias
7184 expansion. */
7117c2d2 7185 if MBTEST(posixly_correct == 0)
f73dda09
JA		 7186#endif
7187 CHECK_FOR_RESERVED_WORD (token);
7188
7189 the_word = (WORD_DESC *)xmalloc (sizeof (WORD_DESC));
7190 the_word->word = (char *)xmalloc (1 + token_index);
7191 the_word->flags = 0;
7192 strcpy (the_word->word, token);
7193 if (dollar_present)
7194 the_word->flags |= W_HASDOLLAR;
7195 if (quoted)
0628567a
JA		 7196 the_word->flags |= W_QUOTED; /*(*/
7197 if (compound_assignment && token[token_index-1] == ')')
95732b49 7198 the_word->flags |= W_COMPASSIGN;
f73dda09
JA		 7199 /* A word is an assignment if it appears at the beginning of a
7200 simple command, or after another assignment word. This is
7201 context-dependent, so it cannot be handled in the grammar. */
b80f6443 7202 if (assignment (token, (parser_state & PST_COMPASSIGN) != 0))
cce855bc 7203 {
f73dda09
JA		 7204 the_word->flags |= W_ASSIGNMENT;
7205 /* Don't perform word splitting on assignment statements. */
b80f6443 7206 if (assignment_acceptable (last_read_token) || (parser_state & PST_COMPASSIGN) != 0)
ac50fbac
CR		 7207 {
7208 the_word->flags |= W_NOSPLIT;
7209 if (parser_state & PST_COMPASSIGN)
7210 the_word->flags |= W_NOGLOB; /* XXX - W_NOBRACE? */
7211 }
cce855bc 7212 }
28ef6c31 7213
95732b49
JA		 7214 if (command_token_position (last_read_token))
7215 {
7216 struct builtin *b;
7217 b = builtin_address_internal (token, 0);
7218 if (b && (b->flags & ASSIGNMENT_BUILTIN))
0628567a
JA		 7219 parser_state |= PST_ASSIGNOK;
7220 else if (STREQ (token, "eval") || STREQ (token, "let"))
7221 parser_state |= PST_ASSIGNOK;
95732b49
JA		 7222 }
7223
f73dda09
JA		 7224 yylval.word = the_word;
7225
0001803f
CR		 7226 if (token[0] == '{' && token[token_index-1] == '}' &&
7227 (character == '<' || character == '>'))
7228 {
7229 /* can use token; already copied to the_word */
7230 token[token_index-1] = '\0';
ac50fbac
CR		 7231#if defined (ARRAY_VARS)
7232 if (legal_identifier (token+1) || valid_array_reference (token+1))
7233#else
0001803f 7234 if (legal_identifier (token+1))
ac50fbac 7235#endif
0001803f
CR		 7236 {
7237 strcpy (the_word->word, token+1);
7238/*itrace("read_token_word: returning REDIR_WORD for %s", the_word->word);*/
7239 return (REDIR_WORD);
7240 }
7241 }
7242
f73dda09
JA		 7243 result = ((the_word->flags & (W_ASSIGNMENT|W_NOSPLIT)) == (W_ASSIGNMENT|W_NOSPLIT))
7244 ? ASSIGNMENT_WORD : WORD;
7245
b80f6443 7246 switch (last_read_token)
cce855bc 7247 {
b80f6443 7248 case FUNCTION:
f73dda09
JA		 7249 parser_state |= PST_ALLOWOPNBRC;
7250 function_dstart = line_number;
b80f6443
JA		 7251 break;
7252 case CASE:
7253 case SELECT:
7254 case FOR:
7255 if (word_top < MAX_CASE_NEST)
7256 word_top++;
7257 word_lineno[word_top] = line_number;
7258 break;
cce855bc 7259 }
cce855bc 7260
f73dda09 7261 return (result);
28ef6c31 7262}
cce855bc 7263
f73dda09
JA		 7264/* Return 1 if TOKSYM is a token that after being read would allow
7265 a reserved word to be seen, else 0. */
7266static int
7267reserved_word_acceptable (toksym)
7268 int toksym;
7269{
7117c2d2
JA		 7270 switch (toksym)
7271 {
7272 case '\n':
7273 case ';':
7274 case '(':
7275 case ')':
7276 case '|':
7277 case '&':
7278 case '{':
7279 case '}': /* XXX */
7280 case AND_AND:
7281 case BANG:
0001803f 7282 case BAR_AND:
7117c2d2
JA		 7283 case DO:
7284 case DONE:
7285 case ELIF:
7286 case ELSE:
7287 case ESAC:
7288 case FI:
7289 case IF:
7290 case OR_OR:
7291 case SEMI_SEMI:
3185942a
JA		 7292 case SEMI_AND:
7293 case SEMI_SEMI_AND:
7117c2d2
JA		 7294 case THEN:
7295 case TIME:
7296 case TIMEOPT:
495aee44 7297 case TIMEIGN:
3185942a 7298 case COPROC:
7117c2d2
JA		 7299 case UNTIL:
7300 case WHILE:
7301 case 0:
7302 return 1;
7303 default:
3185942a
JA		 7304#if defined (COPROCESS_SUPPORT)
7305 if (last_read_token == WORD && token_before_that == COPROC)
7306 return 1;
7307#endif
495aee44
CR		 7308 if (last_read_token == WORD && token_before_that == FUNCTION)
7309 return 1;
7117c2d2
JA		 7310 return 0;
7311 }
f73dda09 7312}
7117c2d2 7313
f73dda09
JA		 7314/* Return the index of TOKEN in the alist of reserved words, or -1 if
7315 TOKEN is not a shell reserved word. */
7316int
7317find_reserved_word (tokstr)
7318 char *tokstr;
7319{
7320 int i;
7321 for (i = 0; word_token_alist[i].word; i++)
7322 if (STREQ (tokstr, word_token_alist[i].word))
7323 return i;
7324 return -1;
7325}
ccc6cda3 7326
ac50fbac
CR		 7327/* An interface to let the rest of the shell (primarily the completion
7328 system) know what the parser is expecting. */
7329int
7330parser_in_command_position ()
7331{
7332 return (command_token_position (last_read_token));
7333}
7334
f73dda09
JA		 7335#if 0
7336#if defined (READLINE)
7337/* Called after each time readline is called. This insures that whatever
7338 the new prompt string is gets propagated to readline's local prompt
7339 variable. */
7340static void
7341reset_readline_prompt ()
7342{
7343 char *temp_prompt;
726f6388 7344
f73dda09
JA		 7345 if (prompt_string_pointer)
7346 {
7347 temp_prompt = (*prompt_string_pointer)
7348 ? decode_prompt_string (*prompt_string_pointer)
7349 : (char *)NULL;
726f6388 7350
f73dda09
JA		 7351 if (temp_prompt == 0)
7352 {
7353 temp_prompt = (char *)xmalloc (1);
7354 temp_prompt[0] = '\0';
7355 }
ccc6cda3 7356
f73dda09
JA		 7357 FREE (current_readline_prompt);
7358 current_readline_prompt = temp_prompt;
7359 }
7360}
7361#endif /* READLINE */
7362#endif /* 0 */
726f6388 7363
f73dda09
JA		 7364#if defined (HISTORY)
7365/* A list of tokens which can be followed by newlines, but not by
7366 semi-colons. When concatenating multiple lines of history, the
7367 newline separator for such tokens is replaced with a space. */
3185942a 7368static const int no_semi_successors[] = {
f73dda09 7369 '\n', '{', '(', ')', ';', '&', '|',
3185942a
JA		 7370 CASE, DO, ELSE, IF, SEMI_SEMI, SEMI_AND, SEMI_SEMI_AND, THEN, UNTIL,
7371 WHILE, AND_AND, OR_OR, IN,
f73dda09
JA		 7372 0
7373};
ccc6cda3 7374
f73dda09
JA		 7375/* If we are not within a delimited expression, try to be smart
7376 about which separators can be semi-colons and which must be
7377 newlines. Returns the string that should be added into the
495aee44
CR		 7378 history entry. LINE is the line we're about to add; it helps
7379 make some more intelligent decisions in certain cases. */
f73dda09 7380char *
495aee44
CR		 7381history_delimiting_chars (line)
7382 const char *line;
f73dda09 7383{
495aee44 7384 static int last_was_heredoc = 0; /* was the last entry the start of a here document? */
f73dda09 7385 register int i;
726f6388 7386
495aee44
CR		 7387 if ((parser_state & PST_HEREDOC) == 0)
7388 last_was_heredoc = 0;
7389
f73dda09
JA		 7390 if (dstack.delimiter_depth != 0)
7391 return ("\n");
3185942a
JA		 7392
7393 /* We look for current_command_line_count == 2 because we are looking to
7394 add the first line of the body of the here document (the second line
495aee44
CR		 7395 of the command). We also keep LAST_WAS_HEREDOC as a private sentinel
7396 variable to note when we think we added the first line of a here doc
7397 (the one with a "<<" somewhere in it) */
3185942a 7398 if (parser_state & PST_HEREDOC)
495aee44
CR		 7399 {
7400 if (last_was_heredoc)
7401 {
7402 last_was_heredoc = 0;
7403 return "\n";
7404 }
7405 return (current_command_line_count == 2 ? "\n" : "");
7406 }
3185942a 7407
509a4430
CR		 7408 if (parser_state & PST_COMPASSIGN)
7409 return (" ");
7410
f73dda09
JA		 7411 /* First, handle some special cases. */
7412 /*(*/
7413 /* If we just read `()', assume it's a function definition, and don't
7414 add a semicolon. If the token before the `)' was not `(', and we're
7415 not in the midst of parsing a case statement, assume it's a
7416 parenthesized command and add the semicolon. */
7417 /*)(*/
7418 if (token_before_that == ')')
7419 {
7420 if (two_tokens_ago == '(') /*)*/ /* function def */
7421 return " ";
7422 /* This does not work for subshells inside case statement
7423 command lists. It's a suboptimal solution. */
7424 else if (parser_state & PST_CASESTMT) /* case statement pattern */
7425 return " ";
7426 else
7427 return "; "; /* (...) subshell */
7428 }
7429 else if (token_before_that == WORD && two_tokens_ago == FUNCTION)
7430 return " "; /* function def using `function name' without `()' */
726f6388 7431
495aee44
CR		 7432 /* If we're not in a here document, but we think we're about to parse one,
7433 and we would otherwise return a `;', return a newline to delimit the
7434 line with the here-doc delimiter */
7435 else if ((parser_state & PST_HEREDOC) == 0 && current_command_line_count > 1 && last_read_token == '\n' && strstr (line, "<<"))
7436 {
7437 last_was_heredoc = 1;
7438 return "\n";
7439 }
7440
f73dda09
JA		 7441 else if (token_before_that == WORD && two_tokens_ago == FOR)
7442 {
7443 /* Tricky. `for i\nin ...' should not have a semicolon, but
7444 `for i\ndo ...' should. We do what we can. */
3185942a 7445 for (i = shell_input_line_index; whitespace (shell_input_line[i]); i++)
f73dda09
JA		 7446 ;
7447 if (shell_input_line[i] && shell_input_line[i] == 'i' && shell_input_line[i+1] == 'n')
7448 return " ";
7449 return ";";
7450 }
95732b49
JA		 7451 else if (two_tokens_ago == CASE && token_before_that == WORD && (parser_state & PST_CASESTMT))
7452 return " ";
726f6388 7453
f73dda09
JA		 7454 for (i = 0; no_semi_successors[i]; i++)
7455 {
7456 if (token_before_that == no_semi_successors[i])
7457 return (" ");
7458 }
726f6388 7459
f73dda09
JA		 7460 return ("; ");
7461}
7462#endif /* HISTORY */
ccc6cda3 7463
f73dda09
JA		 7464/* Issue a prompt, or prepare to issue a prompt when the next character
7465 is read. */
7466static void
7467prompt_again ()
7468{
7469 char *temp_prompt;
726f6388 7470
0001803f 7471 if (interactive == 0 || expanding_alias ()) /* XXX */
f73dda09 7472 return;
726f6388 7473
f73dda09
JA		 7474 ps1_prompt = get_string_value ("PS1");
7475 ps2_prompt = get_string_value ("PS2");
28ef6c31 7476
f73dda09
JA		 7477 if (!prompt_string_pointer)
7478 prompt_string_pointer = &ps1_prompt;
28ef6c31 7479
f73dda09
JA		 7480 temp_prompt = *prompt_string_pointer
7481 ? decode_prompt_string (*prompt_string_pointer)
7482 : (char *)NULL;
28ef6c31 7483
f73dda09
JA		 7484 if (temp_prompt == 0)
7485 {
7486 temp_prompt = (char *)xmalloc (1);
7487 temp_prompt[0] = '\0';
28ef6c31 7488 }
28ef6c31 7489
f73dda09
JA		 7490 current_prompt_string = *prompt_string_pointer;
7491 prompt_string_pointer = &ps2_prompt;
28ef6c31 7492
f73dda09
JA		 7493#if defined (READLINE)
7494 if (!no_line_editing)
ccc6cda3 7495 {
f73dda09
JA		 7496 FREE (current_readline_prompt);
7497 current_readline_prompt = temp_prompt;
ccc6cda3
JA		 7498 }
7499 else
f73dda09 7500#endif /* READLINE */
ccc6cda3 7501 {
f73dda09
JA		 7502 FREE (current_decoded_prompt);
7503 current_decoded_prompt = temp_prompt;
ccc6cda3
JA		 7504 }
7505}
726f6388 7506
28ef6c31 7507int
f73dda09 7508get_current_prompt_level ()
bb70624e 7509{
f73dda09 7510 return ((current_prompt_string && current_prompt_string == ps2_prompt) ? 2 : 1);
28ef6c31 7511}
bb70624e 7512
f73dda09
JA		 7513void
7514set_current_prompt_level (x)
7515 int x;
7516{
7517 prompt_string_pointer = (x == 2) ? &ps2_prompt : &ps1_prompt;
7518 current_prompt_string = *prompt_string_pointer;
7519}
7520
28ef6c31 7521static void
f73dda09 7522print_prompt ()
28ef6c31 7523{
f73dda09
JA		 7524 fprintf (stderr, "%s", current_decoded_prompt);
7525 fflush (stderr);
7526}
bb70624e 7527
f73dda09
JA		 7528/* Return a string which will be printed as a prompt. The string
7529 may contain special characters which are decoded as follows:
726f6388 7530
f73dda09 7531 \a bell (ascii 07)
f73dda09 7532 \d the date in Day Mon Date format
7117c2d2 7533 \e escape (ascii 033)
f73dda09
JA		 7534 \h the hostname up to the first `.'
7535 \H the hostname
7536 \j the number of active jobs
7537 \l the basename of the shell's tty device name
7538 \n CRLF
7117c2d2 7539 \r CR
f73dda09
JA		 7540 \s the name of the shell
7541 \t the time in 24-hour hh:mm:ss format
7542 \T the time in 12-hour hh:mm:ss format
7117c2d2
JA		 7543 \@ the time in 12-hour hh:mm am/pm format
7544 \A the time in 24-hour hh:mm format
7545 \D{fmt} the result of passing FMT to strftime(3)
7546 \u your username
f73dda09
JA		 7547 \v the version of bash (e.g., 2.00)
7548 \V the release of bash, version + patchlevel (e.g., 2.00.0)
7549 \w the current working directory
7550 \W the last element of $PWD
f73dda09 7551 \! the history number of this command
7117c2d2 7552 \# the command number of this command
f73dda09
JA		 7553 \$ a $ or a # if you are root
7554 \nnn character code nnn in octal
7555 \\ a backslash
7556 \[ begin a sequence of non-printing chars
7557 \] end a sequence of non-printing chars
7558*/
7559#define PROMPT_GROWTH 48
7560char *
7561decode_prompt_string (string)
7562 char *string;
7563{
7564 WORD_LIST *list;
7565 char *result, *t;
7566 struct dstack save_dstack;
0001803f 7567 int last_exit_value, last_comsub_pid;
f73dda09
JA		 7568#if defined (PROMPT_STRING_DECODE)
7569 int result_size, result_index;
0628567a 7570 int c, n, i;
f73dda09 7571 char *temp, octal_string[4];
7117c2d2 7572 struct tm *tm;
f73dda09 7573 time_t the_time;
7117c2d2
JA		 7574 char timebuf[128];
7575 char *timefmt;
726f6388 7576
f73dda09
JA		 7577 result = (char *)xmalloc (result_size = PROMPT_GROWTH);
7578 result[result_index = 0] = 0;
7579 temp = (char *)NULL;
28ef6c31 7580
f73dda09
JA		 7581 while (c = *string++)
7582 {
7583 if (posixly_correct && c == '!')
bb70624e 7584 {
f73dda09 7585 if (*string == '!')
28ef6c31 7586 {
f73dda09
JA		 7587 temp = savestring ("!");
7588 goto add_string;
7589 }
7590 else
7591 {
7592#if !defined (HISTORY)
7593 temp = savestring ("1");
7594#else /* HISTORY */
7595 temp = itos (history_number ());
7596#endif /* HISTORY */
7597 string--; /* add_string increments string again. */
7598 goto add_string;
28ef6c31 7599 }
28ef6c31 7600 }
f73dda09
JA		 7601 if (c == '\\')
7602 {
7603 c = *string;
726f6388 7604
f73dda09
JA		 7605 switch (c)
7606 {
7607 case '0':
7608 case '1':
7609 case '2':
7610 case '3':
7611 case '4':
7612 case '5':
7613 case '6':
7614 case '7':
7615 strncpy (octal_string, string, 3);
7616 octal_string[3] = '\0';
726f6388 7617
f73dda09
JA		 7618 n = read_octal (octal_string);
7619 temp = (char *)xmalloc (3);
726f6388 7620
f73dda09
JA		 7621 if (n == CTLESC || n == CTLNUL)
7622 {
7623 temp[0] = CTLESC;
7624 temp[1] = n;
7625 temp[2] = '\0';
7626 }
7627 else if (n == -1)
7628 {
7629 temp[0] = '\\';
7630 temp[1] = '\0';
7631 }
7632 else
7633 {
7634 temp[0] = n;
7635 temp[1] = '\0';
7636 }
28ef6c31 7637
f73dda09
JA		 7638 for (c = 0; n != -1 && c < 3 && ISOCTAL (*string); c++)
7639 string++;
28ef6c31 7640
7117c2d2 7641 c = 0; /* tested at add_string: */
f73dda09 7642 goto add_string;
28ef6c31 7643
f73dda09 7644 case 'd':
7117c2d2 7645 case 't':
f73dda09
JA		 7646 case 'T':
7647 case '@':
7648 case 'A':
7649 /* Make the current time/date into a string. */
7117c2d2 7650 (void) time (&the_time);
509a4430
CR		 7651#if defined (HAVE_TZSET)
7652 sv_tz ("TZ"); /* XXX -- just make sure */
7653#endif
7117c2d2
JA		 7654 tm = localtime (&the_time);
7655
7656 if (c == 'd')
7657 n = strftime (timebuf, sizeof (timebuf), "%a %b %d", tm);
7658 else if (c == 't')
7659 n = strftime (timebuf, sizeof (timebuf), "%H:%M:%S", tm);
7660 else if (c == 'T')
7661 n = strftime (timebuf, sizeof (timebuf), "%I:%M:%S", tm);
7662 else if (c == '@')
7663 n = strftime (timebuf, sizeof (timebuf), "%I:%M %p", tm);
7664 else if (c == 'A')
7665 n = strftime (timebuf, sizeof (timebuf), "%H:%M", tm);
7666
b80f6443
JA		 7667 if (n == 0)
7668 timebuf[0] = '\0';
7669 else
7670 timebuf[sizeof(timebuf) - 1] = '\0';
7671
7117c2d2
JA		 7672 temp = savestring (timebuf);
7673 goto add_string;
726f6388 7674
7117c2d2
JA		 7675 case 'D': /* strftime format */
7676 if (string[1] != '{') /* } */
7677 goto not_escape;
726f6388 7678
7117c2d2
JA		 7679 (void) time (&the_time);
7680 tm = localtime (&the_time);
7681 string += 2; /* skip { */
7682 timefmt = xmalloc (strlen (string) + 3);
7683 for (t = timefmt; *string && *string != '}'; )
7684 *t++ = *string++;
7685 *t = '\0';
7686 c = *string; /* tested at add_string */
7687 if (timefmt[0] == '\0')
f73dda09 7688 {
7117c2d2
JA		 7689 timefmt[0] = '%';
7690 timefmt[1] = 'X'; /* locale-specific current time */
7691 timefmt[2] = '\0';
f73dda09 7692 }
7117c2d2
JA		 7693 n = strftime (timebuf, sizeof (timebuf), timefmt, tm);
7694 free (timefmt);
7695
b80f6443
JA		 7696 if (n == 0)
7697 timebuf[0] = '\0';
7698 else
7699 timebuf[sizeof(timebuf) - 1] = '\0';
7700
7117c2d2
JA		 7701 if (promptvars || posixly_correct)
7702 /* Make sure that expand_prompt_string is called with a
7703 second argument of Q_DOUBLE_QUOTES if we use this
7704 function here. */
7705 temp = sh_backslash_quote_for_double_quotes (timebuf);
7706 else
7707 temp = savestring (timebuf);
f73dda09 7708 goto add_string;
7117c2d2 7709
f73dda09
JA		 7710 case 'n':
7711 temp = (char *)xmalloc (3);
7712 temp[0] = no_line_editing ? '\n' : '\r';
7713 temp[1] = no_line_editing ? '\0' : '\n';
7714 temp[2] = '\0';
7715 goto add_string;
ccc6cda3 7716
f73dda09
JA		 7717 case 's':
7718 temp = base_pathname (shell_name);
7719 temp = savestring (temp);
7720 goto add_string;
726f6388 7721
f73dda09
JA		 7722 case 'v':
7723 case 'V':
7117c2d2 7724 temp = (char *)xmalloc (16);
f73dda09
JA		 7725 if (c == 'v')
7726 strcpy (temp, dist_version);
7727 else
7728 sprintf (temp, "%s.%d", dist_version, patch_level);
7729 goto add_string;
bb70624e 7730
f73dda09
JA		 7731 case 'w':
7732 case 'W':
7733 {
7734 /* Use the value of PWD because it is much more efficient. */
0628567a 7735 char t_string[PATH_MAX];
f73dda09 7736 int tlen;
28ef6c31 7737
f73dda09 7738 temp = get_string_value ("PWD");
ccc6cda3 7739
f73dda09
JA		 7740 if (temp == 0)
7741 {
7742 if (getcwd (t_string, sizeof(t_string)) == 0)
7743 {
7744 t_string[0] = '.';
7745 tlen = 1;
7746 }
7747 else
7748 tlen = strlen (t_string);
7749 }
7750 else
7751 {
7752 tlen = sizeof (t_string) - 1;
7753 strncpy (t_string, temp, tlen);
7754 }
7755 t_string[tlen] = '\0';
726f6388 7756
0001803f
CR		 7757#if defined (MACOSX)
7758 /* Convert from "fs" format to "input" format */
7759 temp = fnx_fromfs (t_string, strlen (t_string));
7760 if (temp != t_string)
7761 strcpy (t_string, temp);
7762#endif
7763
f73dda09
JA		 7764#define ROOT_PATH(x) ((x)[0] == '/' && (x)[1] == 0)
7765#define DOUBLE_SLASH_ROOT(x) ((x)[0] == '/' && (x)[1] == '/' && (x)[2] == 0)
b80f6443 7766 /* Abbreviate \W as ~ if $PWD == $HOME */
95732b49 7767 if (c == 'W' && (((t = get_string_value ("HOME")) == 0) || STREQ (t, t_string) == 0))
f73dda09
JA		 7768 {
7769 if (ROOT_PATH (t_string) == 0 && DOUBLE_SLASH_ROOT (t_string) == 0)
7770 {
7771 t = strrchr (t_string, '/');
7772 if (t)
495aee44 7773 memmove (t_string, t + 1, strlen (t)); /* strlen(t) to copy NULL */
f73dda09
JA		 7774 }
7775 }
7776#undef ROOT_PATH
7777#undef DOUBLE_SLASH_ROOT
7778 else
ac50fbac
CR		 7779 {
7780 /* polite_directory_format is guaranteed to return a string
7781 no longer than PATH_MAX - 1 characters. */
7782 temp = polite_directory_format (t_string);
7783 if (temp != t_string)
7784 strcpy (t_string, temp);
7785 }
726f6388 7786
3185942a 7787 temp = trim_pathname (t_string, PATH_MAX - 1);
f73dda09
JA		 7788 /* If we're going to be expanding the prompt string later,
7789 quote the directory name. */
7790 if (promptvars || posixly_correct)
7791 /* Make sure that expand_prompt_string is called with a
7117c2d2 7792 second argument of Q_DOUBLE_QUOTES if we use this
f73dda09
JA		 7793 function here. */
7794 temp = sh_backslash_quote_for_double_quotes (t_string);
7795 else
7796 temp = savestring (t_string);
726f6388 7797
f73dda09
JA		 7798 goto add_string;
7799 }
726f6388 7800
f73dda09
JA		 7801 case 'u':
7802 if (current_user.user_name == 0)
7803 get_current_user_info ();
7804 temp = savestring (current_user.user_name);
7805 goto add_string;
726f6388 7806
f73dda09
JA		 7807 case 'h':
7808 case 'H':
7809 temp = savestring (current_host_name);
7810 if (c == 'h' && (t = (char *)strchr (temp, '.')))
7811 *t = '\0';
7812 goto add_string;
726f6388 7813
f73dda09
JA		 7814 case '#':
7815 temp = itos (current_command_number);
7816 goto add_string;
28ef6c31 7817
f73dda09
JA		 7818 case '!':
7819#if !defined (HISTORY)
7820 temp = savestring ("1");
7821#else /* HISTORY */
7822 temp = itos (history_number ());
7823#endif /* HISTORY */
7824 goto add_string;
726f6388 7825
f73dda09
JA		 7826 case '$':
7827 t = temp = (char *)xmalloc (3);
7828 if ((promptvars || posixly_correct) && (current_user.euid != 0))
7829 *t++ = '\\';
7830 *t++ = current_user.euid == 0 ? '#' : '$';
7831 *t = '\0';
7832 goto add_string;
726f6388 7833
f73dda09
JA		 7834 case 'j':
7835 temp = itos (count_all_jobs ());
7836 goto add_string;
28ef6c31 7837
f73dda09
JA		 7838 case 'l':
7839#if defined (HAVE_TTYNAME)
7840 temp = (char *)ttyname (fileno (stdin));
7841 t = temp ? base_pathname (temp) : "tty";
7842 temp = savestring (t);
7843#else
7844 temp = savestring ("tty");
7845#endif /* !HAVE_TTYNAME */
7846 goto add_string;
726f6388 7847
f73dda09
JA		 7848#if defined (READLINE)
7849 case '[':
7850 case ']':
b80f6443
JA		 7851 if (no_line_editing)
7852 {
7853 string++;
7854 break;
7855 }
f73dda09 7856 temp = (char *)xmalloc (3);
0628567a
JA		 7857 n = (c == '[') ? RL_PROMPT_START_IGNORE : RL_PROMPT_END_IGNORE;
7858 i = 0;
7859 if (n == CTLESC || n == CTLNUL)
7860 temp[i++] = CTLESC;
7861 temp[i++] = n;
7862 temp[i] = '\0';
f73dda09
JA		 7863 goto add_string;
7864#endif /* READLINE */
ccc6cda3 7865
f73dda09 7866 case '\\':
f73dda09
JA		 7867 case 'a':
7868 case 'e':
7117c2d2 7869 case 'r':
f73dda09 7870 temp = (char *)xmalloc (2);
7117c2d2
JA		 7871 if (c == 'a')
7872 temp[0] = '\07';
7873 else if (c == 'e')
7874 temp[0] = '\033';
7875 else if (c == 'r')
7876 temp[0] = '\r';
7877 else /* (c == '\\') */
7878 temp[0] = c;
f73dda09
JA		 7879 temp[1] = '\0';
7880 goto add_string;
7881
7882 default:
7117c2d2 7883not_escape:
f73dda09
JA		 7884 temp = (char *)xmalloc (3);
7885 temp[0] = '\\';
7886 temp[1] = c;
7887 temp[2] = '\0';
7888
7889 add_string:
7890 if (c)
7891 string++;
7892 result =
7893 sub_append_string (temp, result, &result_index, &result_size);
7894 temp = (char *)NULL; /* Freed in sub_append_string (). */
7895 result[result_index] = '\0';
7896 break;
7897 }
7898 }
7899 else
7900 {
7901 RESIZE_MALLOCED_BUFFER (result, result_index, 3, result_size, PROMPT_GROWTH);
7902 result[result_index++] = c;
7903 result[result_index] = '\0';
7904 }
7905 }
7906#else /* !PROMPT_STRING_DECODE */
7907 result = savestring (string);
7908#endif /* !PROMPT_STRING_DECODE */
7909
7910 /* Save the delimiter stack and point `dstack' to temp space so any
7911 command substitutions in the prompt string won't result in screwing
7912 up the parser's quoting state. */
7913 save_dstack = dstack;
7914 dstack = temp_dstack;
7915 dstack.delimiter_depth = 0;
7916
7917 /* Perform variable and parameter expansion and command substitution on
7918 the prompt string. */
7919 if (promptvars || posixly_correct)
7920 {
7921 last_exit_value = last_command_exit_value;
0001803f 7922 last_comsub_pid = last_command_subst_pid;
3185942a 7923 list = expand_prompt_string (result, Q_DOUBLE_QUOTES, 0);
f73dda09
JA		 7924 free (result);
7925 result = string_list (list);
7926 dispose_words (list);
7927 last_command_exit_value = last_exit_value;
0001803f 7928 last_command_subst_pid = last_comsub_pid;
f73dda09
JA		 7929 }
7930 else
7931 {
7932 t = dequote_string (result);
7933 free (result);
7934 result = t;
7935 }
7936
7937 dstack = save_dstack;
7938
7939 return (result);
7940}
7941
7117c2d2
JA		 7942/************************************************
7943 * *
7944 * ERROR HANDLING *
7945 * *
7946 ************************************************/
7947
f73dda09
JA		 7948/* Report a syntax error, and restart the parser. Call here for fatal
7949 errors. */
7950int
7951yyerror (msg)
7952 const char *msg;
726f6388 7953{
f73dda09
JA		 7954 report_syntax_error ((char *)NULL);
7955 reset_parser ();
7956 return (0);
7957}
7958
7117c2d2 7959static char *
0628567a
JA		 7960error_token_from_token (tok)
7961 int tok;
7117c2d2
JA		 7962{
7963 char *t;
7964
0628567a 7965 if (t = find_token_in_alist (tok, word_token_alist, 0))
7117c2d2
JA		 7966 return t;
7967
0628567a 7968 if (t = find_token_in_alist (tok, other_token_alist, 0))
7117c2d2
JA		 7969 return t;
7970
7971 t = (char *)NULL;
7972 /* This stuff is dicy and needs closer inspection */
7973 switch (current_token)
7974 {
7975 case WORD:
7976 case ASSIGNMENT_WORD:
7977 if (yylval.word)
7978 t = savestring (yylval.word->word);
7979 break;
7980 case NUMBER:
7981 t = itos (yylval.number);
7982 break;
7983 case ARITH_CMD:
7984 if (yylval.word_list)
7985 t = string_list (yylval.word_list);
7986 break;
7987 case ARITH_FOR_EXPRS:
7988 if (yylval.word_list)
7989 t = string_list_internal (yylval.word_list, " ; ");
7990 break;
7991 case COND_CMD:
7992 t = (char *)NULL; /* punt */
7993 break;
7994 }
7995
7996 return t;
7997}
7998
7999static char *
8000error_token_from_text ()
8001{
8002 char *msg, *t;
8003 int token_end, i;
8004
8005 t = shell_input_line;
8006 i = shell_input_line_index;
8007 token_end = 0;
8008 msg = (char *)NULL;
8009
8010 if (i && t[i] == '\0')
8011 i--;
8012
8013 while (i && (whitespace (t[i]) || t[i] == '\n'))
8014 i--;
8015
8016 if (i)
8017 token_end = i + 1;
8018
8019 while (i && (member (t[i], " \n\t;|&") == 0))
8020 i--;
8021
8022 while (i != token_end && (whitespace (t[i]) || t[i] == '\n'))
8023 i++;
8024
8025 /* Return our idea of the offending token. */
8026 if (token_end || (i == 0 && token_end == 0))
8027 {
8028 if (token_end)
8029 msg = substring (t, i, token_end);
8030 else /* one-character token */
8031 {
8032 msg = (char *)xmalloc (2);
8033 msg[0] = t[i];
8034 msg[1] = '\0';
8035 }
8036 }
8037
8038 return (msg);
8039}
8040
8041static void
8042print_offending_line ()
8043{
8044 char *msg;
8045 int token_end;
8046
8047 msg = savestring (shell_input_line);
8048 token_end = strlen (msg);
8049 while (token_end && msg[token_end - 1] == '\n')
8050 msg[--token_end] = '\0';
8051
8052 parser_error (line_number, "`%s'", msg);
8053 free (msg);
8054}
8055
f73dda09
JA		 8056/* Report a syntax error with line numbers, etc.
8057 Call here for recoverable errors. If you have a message to print,
8058 then place it in MESSAGE, otherwise pass NULL and this will figure
8059 out an appropriate message for you. */
8060static void
8061report_syntax_error (message)
8062 char *message;
726f6388 8063{
495aee44 8064 char *msg, *p;
f73dda09
JA		 8065
8066 if (message)
8067 {
8068 parser_error (line_number, "%s", message);
8069 if (interactive && EOF_Reached)
8070 EOF_Reached = 0;
0001803f 8071 last_command_exit_value = parse_and_execute_level ? EX_BADSYNTAX : EX_BADUSAGE;
f73dda09
JA		 8072 return;
8073 }
8074
8075 /* If the line of input we're reading is not null, try to find the
7117c2d2
JA		 8076 objectionable token. First, try to figure out what token the
8077 parser's complaining about by looking at current_token. */
8078 if (current_token != 0 && EOF_Reached == 0 && (msg = error_token_from_token (current_token)))
f73dda09 8079 {
495aee44
CR		 8080 if (ansic_shouldquote (msg))
8081 {
8082 p = ansic_quote (msg, 0, NULL);
8083 free (msg);
8084 msg = p;
8085 }
b80f6443 8086 parser_error (line_number, _("syntax error near unexpected token `%s'"), msg);
7117c2d2 8087 free (msg);
f73dda09 8088
7117c2d2
JA		 8089 if (interactive == 0)
8090 print_offending_line ();
f73dda09 8091
0001803f 8092 last_command_exit_value = parse_and_execute_level ? EX_BADSYNTAX : EX_BADUSAGE;
7117c2d2
JA		 8093 return;
8094 }
f73dda09 8095
7117c2d2
JA		 8096 /* If looking at the current token doesn't prove fruitful, try to find the
8097 offending token by analyzing the text of the input line near the current
8098 input line index and report what we find. */
8099 if (shell_input_line && *shell_input_line)
8100 {
8101 msg = error_token_from_text ();
8102 if (msg)
f73dda09 8103 {
b80f6443 8104 parser_error (line_number, _("syntax error near `%s'"), msg);
7117c2d2 8105 free (msg);
f73dda09
JA		 8106 }
8107
8108 /* If not interactive, print the line containing the error. */
8109 if (interactive == 0)
7117c2d2 8110 print_offending_line ();
f73dda09
JA		 8111 }
8112 else
8113 {
b80f6443 8114 msg = EOF_Reached ? _("syntax error: unexpected end of file") : _("syntax error");
f73dda09
JA		 8115 parser_error (line_number, "%s", msg);
8116 /* When the shell is interactive, this file uses EOF_Reached
8117 only for error reporting. Other mechanisms are used to
8118 decide whether or not to exit. */
8119 if (interactive && EOF_Reached)
8120 EOF_Reached = 0;
8121 }
7117c2d2 8122
0001803f 8123 last_command_exit_value = parse_and_execute_level ? EX_BADSYNTAX : EX_BADUSAGE;
f73dda09
JA		 8124}
8125
8126/* ??? Needed function. ??? We have to be able to discard the constructs
8127 created during parsing. In the case of error, we want to return
8128 allocated objects to the memory pool. In the case of no error, we want
8129 to throw away the information about where the allocated objects live.
7117c2d2 8130 (dispose_command () will actually free the command.) */
f73dda09
JA		 8131static void
8132discard_parser_constructs (error_p)
8133 int error_p;
28ef6c31 8134{
f73dda09
JA		 8135}
8136
7117c2d2
JA		 8137/************************************************
8138 * *
8139 * EOF HANDLING *
8140 * *
8141 ************************************************/
8142
f73dda09
JA		 8143/* Do that silly `type "bye" to exit' stuff. You know, "ignoreeof". */
8144
8145/* A flag denoting whether or not ignoreeof is set. */
8146int ignoreeof = 0;
8147
8148/* The number of times that we have encountered an EOF character without
8149 another character intervening. When this gets above the limit, the
8150 shell terminates. */
8151int eof_encountered = 0;
8152
8153/* The limit for eof_encountered. */
8154int eof_encountered_limit = 10;
8155
8156/* If we have EOF as the only input unit, this user wants to leave
8157 the shell. If the shell is not interactive, then just leave.
8158 Otherwise, if ignoreeof is set, and we haven't done this the
8159 required number of times in a row, print a message. */
8160static void
8161handle_eof_input_unit ()
28ef6c31 8162{
f73dda09
JA		 8163 if (interactive)
8164 {
8165 /* shell.c may use this to decide whether or not to write out the
8166 history, among other things. We use it only for error reporting
8167 in this file. */
8168 if (EOF_Reached)
8169 EOF_Reached = 0;
8170
8171 /* If the user wants to "ignore" eof, then let her do so, kind of. */
8172 if (ignoreeof)
8173 {
8174 if (eof_encountered < eof_encountered_limit)
8175 {
b80f6443 8176 fprintf (stderr, _("Use \"%s\" to leave the shell.\n"),
f73dda09
JA		 8177 login_shell ? "logout" : "exit");
8178 eof_encountered++;
7117c2d2
JA		 8179 /* Reset the parsing state. */
8180 last_read_token = current_token = '\n';
f73dda09
JA		 8181 /* Reset the prompt string to be $PS1. */
8182 prompt_string_pointer = (char **)NULL;
8183 prompt_again ();
f73dda09
JA		 8184 return;
8185 }
8186 }
8187
8188 /* In this case EOF should exit the shell. Do it now. */
8189 reset_parser ();
8190 exit_builtin ((WORD_LIST *)NULL);
726f6388 8191 }
f73dda09 8192 else
726f6388 8193 {
f73dda09
JA		 8194 /* We don't write history files, etc., for non-interactive shells. */
8195 EOF_Reached = 1;
8196 }
8197}
8198
7117c2d2
JA		 8199/************************************************
8200 * *
8201 * STRING PARSING FUNCTIONS *
8202 * *
8203 ************************************************/
8204
8205/* It's very important that these two functions treat the characters
8206 between ( and ) identically. */
8207
f73dda09
JA		 8208static WORD_LIST parse_string_error;
8209
8210/* Take a string and run it through the shell parser, returning the
8211 resultant word list. Used by compound array assignment. */
8212WORD_LIST *
b80f6443 8213parse_string_to_word_list (s, flags, whom)
f73dda09 8214 char *s;
b80f6443 8215 int flags;
f73dda09
JA		 8216 const char *whom;
8217{
8218 WORD_LIST *wl;
7117c2d2 8219 int tok, orig_current_token, orig_line_number, orig_input_terminator;
f73dda09 8220 int orig_line_count;
7117c2d2 8221 int old_echo_input, old_expand_aliases;
f73dda09
JA		 8222#if defined (HISTORY)
8223 int old_remember_on_history, old_history_expansion_inhibited;
bb70624e 8224#endif
f73dda09
JA		 8225
8226#if defined (HISTORY)
8227 old_remember_on_history = remember_on_history;
8228# if defined (BANG_HISTORY)
8229 old_history_expansion_inhibited = history_expansion_inhibited;
8230# endif
8231 bash_history_disable ();
bb70624e 8232#endif
f73dda09
JA		 8233
8234 orig_line_number = line_number;
8235 orig_line_count = current_command_line_count;
8236 orig_input_terminator = shell_input_line_terminator;
7117c2d2
JA		 8237 old_echo_input = echo_input_at_read;
8238 old_expand_aliases = expand_aliases;
f73dda09
JA		 8239
8240 push_stream (1);
7117c2d2 8241 last_read_token = WORD; /* WORD to allow reserved words here */
f73dda09 8242 current_command_line_count = 0;
7117c2d2 8243 echo_input_at_read = expand_aliases = 0;
f73dda09
JA		 8244
8245 with_input_from_string (s, whom);
8246 wl = (WORD_LIST *)NULL;
b80f6443
JA		 8247
8248 if (flags & 1)
3185942a 8249 parser_state |= PST_COMPASSIGN|PST_REPARSE;
b80f6443 8250
f73dda09
JA		 8251 while ((tok = read_token (READ)) != yacc_EOF)
8252 {
8253 if (tok == '\n' && *bash_input.location.string == '\0')
8254 break;
8255 if (tok == '\n') /* Allow newlines in compound assignments */
8256 continue;
8257 if (tok != WORD && tok != ASSIGNMENT_WORD)
8258 {
8259 line_number = orig_line_number + line_number - 1;
7117c2d2
JA		 8260 orig_current_token = current_token;
8261 current_token = tok;
95732b49 8262 yyerror (NULL); /* does the right thing */
7117c2d2 8263 current_token = orig_current_token;
f73dda09
JA		 8264 if (wl)
8265 dispose_words (wl);
8266 wl = &parse_string_error;
8267 break;
8268 }
8269 wl = make_word_list (yylval.word, wl);
bb70624e 8270 }
f73dda09
JA		 8271
8272 last_read_token = '\n';
8273 pop_stream ();
8274
8275#if defined (HISTORY)
8276 remember_on_history = old_remember_on_history;
8277# if defined (BANG_HISTORY)
8278 history_expansion_inhibited = old_history_expansion_inhibited;
8279# endif /* BANG_HISTORY */
8280#endif /* HISTORY */
8281
7117c2d2
JA		 8282 echo_input_at_read = old_echo_input;
8283 expand_aliases = old_expand_aliases;
8284
f73dda09
JA		 8285 current_command_line_count = orig_line_count;
8286 shell_input_line_terminator = orig_input_terminator;
8287
b80f6443 8288 if (flags & 1)
3185942a 8289 parser_state &= ~(PST_COMPASSIGN|PST_REPARSE);
b80f6443 8290
f73dda09 8291 if (wl == &parse_string_error)
bb70624e 8292 {
f73dda09
JA		 8293 last_command_exit_value = EXECUTION_FAILURE;
8294 if (interactive_shell == 0 && posixly_correct)
8295 jump_to_top_level (FORCE_EOF);
8296 else
8297 jump_to_top_level (DISCARD);
bb70624e 8298 }
f73dda09
JA		 8299
8300 return (REVERSE_LIST (wl, WORD_LIST *));
bb70624e 8301}
7117c2d2
JA		 8302
8303static char *
8304parse_compound_assignment (retlenp)
8305 int *retlenp;
8306{
8307 WORD_LIST *wl, *rl;
0628567a 8308 int tok, orig_line_number, orig_token_size, orig_last_token, assignok;
7117c2d2
JA		 8309 char *saved_token, *ret;
8310
8311 saved_token = token;
8312 orig_token_size = token_buffer_size;
8313 orig_line_number = line_number;
0628567a 8314 orig_last_token = last_read_token;
7117c2d2
JA		 8315
8316 last_read_token = WORD; /* WORD to allow reserved words here */
8317
8318 token = (char *)NULL;
8319 token_buffer_size = 0;
8320
0628567a
JA		 8321 assignok = parser_state&PST_ASSIGNOK; /* XXX */
8322
7117c2d2 8323 wl = (WORD_LIST *)NULL; /* ( */
b80f6443
JA		 8324 parser_state |= PST_COMPASSIGN;
8325
7117c2d2
JA		 8326 while ((tok = read_token (READ)) != ')')
8327 {
8328 if (tok == '\n') /* Allow newlines in compound assignments */
b80f6443
JA		 8329 {
8330 if (SHOULD_PROMPT ())
8331 prompt_again ();
8332 continue;
8333 }
7117c2d2
JA		 8334 if (tok != WORD && tok != ASSIGNMENT_WORD)
8335 {
8336 current_token = tok; /* for error reporting */
8337 if (tok == yacc_EOF) /* ( */
b80f6443 8338 parser_error (orig_line_number, _("unexpected EOF while looking for matching `)'"));
7117c2d2 8339 else
95732b49 8340 yyerror(NULL); /* does the right thing */
7117c2d2
JA		 8341 if (wl)
8342 dispose_words (wl);
8343 wl = &parse_string_error;
8344 break;
8345 }
8346 wl = make_word_list (yylval.word, wl);
8347 }
8348
8349 FREE (token);
8350 token = saved_token;
8351 token_buffer_size = orig_token_size;
8352
b80f6443
JA		 8353 parser_state &= ~PST_COMPASSIGN;
8354
7117c2d2
JA		 8355 if (wl == &parse_string_error)
8356 {
8357 last_command_exit_value = EXECUTION_FAILURE;
8358 last_read_token = '\n'; /* XXX */
8359 if (interactive_shell == 0 && posixly_correct)
8360 jump_to_top_level (FORCE_EOF);
8361 else
8362 jump_to_top_level (DISCARD);
8363 }
8364
0628567a
JA		 8365 last_read_token = orig_last_token; /* XXX - was WORD? */
8366
7117c2d2
JA		 8367 if (wl)
8368 {
8369 rl = REVERSE_LIST (wl, WORD_LIST *);
8370 ret = string_list (rl);
8371 dispose_words (rl);
8372 }
8373 else
8374 ret = (char *)NULL;
8375
8376 if (retlenp)
8377 *retlenp = (ret && *ret) ? strlen (ret) : 0;
0628567a
JA		 8378
8379 if (assignok)
8380 parser_state |= PST_ASSIGNOK;
8381
7117c2d2
JA		 8382 return ret;
8383}
8384
b80f6443
JA		 8385/************************************************
8386 * *
8387 * SAVING AND RESTORING PARTIAL PARSE STATE *
8388 * *
8389 ************************************************/
8390
8391sh_parser_state_t *
8392save_parser_state (ps)
8393 sh_parser_state_t *ps;
8394{
b80f6443 8395 if (ps == 0)
95732b49 8396 ps = (sh_parser_state_t *)xmalloc (sizeof (sh_parser_state_t));
b80f6443
JA		 8397 if (ps == 0)
8398 return ((sh_parser_state_t *)NULL);
8399
8400 ps->parser_state = parser_state;
8401 ps->token_state = save_token_state ();
8402
8403 ps->input_line_terminator = shell_input_line_terminator;
8404 ps->eof_encountered = eof_encountered;
8405
495aee44
CR		 8406 ps->prompt_string_pointer = prompt_string_pointer;
8407
b80f6443
JA		 8408 ps->current_command_line_count = current_command_line_count;
8409
8410#if defined (HISTORY)
8411 ps->remember_on_history = remember_on_history;
8412# if defined (BANG_HISTORY)
8413 ps->history_expansion_inhibited = history_expansion_inhibited;
8414# endif
8415#endif
8416
8417 ps->last_command_exit_value = last_command_exit_value;
8418#if defined (ARRAY_VARS)
495aee44 8419 ps->pipestatus = save_pipestatus_array ();
b80f6443
JA		 8420#endif
8421
8422 ps->last_shell_builtin = last_shell_builtin;
8423 ps->this_shell_builtin = this_shell_builtin;
8424
8425 ps->expand_aliases = expand_aliases;
8426 ps->echo_input_at_read = echo_input_at_read;
daefb2c5 8427 ps->need_here_doc = need_here_doc;
b80f6443 8428
509a4430
CR		 8429 ps->token = token;
8430 ps->token_buffer_size = token_buffer_size;
8431 /* Force reallocation on next call to read_token_word */
8432 token = 0;
8433 token_buffer_size = 0;
8434
b80f6443
JA		 8435 return (ps);
8436}
8437
8438void
8439restore_parser_state (ps)
8440 sh_parser_state_t *ps;
8441{
b80f6443
JA		 8442 if (ps == 0)
8443 return;
8444
8445 parser_state = ps->parser_state;
8446 if (ps->token_state)
8447 {
8448 restore_token_state (ps->token_state);
8449 free (ps->token_state);
8450 }
8451
8452 shell_input_line_terminator = ps->input_line_terminator;
8453 eof_encountered = ps->eof_encountered;
8454
495aee44
CR		 8455 prompt_string_pointer = ps->prompt_string_pointer;
8456
b80f6443
JA		 8457 current_command_line_count = ps->current_command_line_count;
8458
8459#if defined (HISTORY)
8460 remember_on_history = ps->remember_on_history;
8461# if defined (BANG_HISTORY)
8462 history_expansion_inhibited = ps->history_expansion_inhibited;
8463# endif
8464#endif
8465
8466 last_command_exit_value = ps->last_command_exit_value;
8467#if defined (ARRAY_VARS)
495aee44 8468 restore_pipestatus_array (ps->pipestatus);
b80f6443
JA		 8469#endif
8470
8471 last_shell_builtin = ps->last_shell_builtin;
8472 this_shell_builtin = ps->this_shell_builtin;
8473
8474 expand_aliases = ps->expand_aliases;
8475 echo_input_at_read = ps->echo_input_at_read;
daefb2c5 8476 need_here_doc = ps->need_here_doc;
509a4430
CR		 8477
8478 FREE (token);
8479 token = ps->token;
8480 token_buffer_size = ps->token_buffer_size;
8481}
8482
8483sh_input_line_state_t *
8484save_input_line_state (ls)
8485 sh_input_line_state_t *ls;
8486{
8487 if (ls == 0)
8488 ls = (sh_input_line_state_t *)xmalloc (sizeof (sh_input_line_state_t));
8489 if (ls == 0)
8490 return ((sh_input_line_state_t *)NULL);
8491
8492 ls->input_line = shell_input_line;
8493 ls->input_line_size = shell_input_line_size;
8494 ls->input_line_len = shell_input_line_len;
8495 ls->input_line_index = shell_input_line_index;
8496
8497 /* force reallocation */
8498 shell_input_line = 0;
8499 shell_input_line_size = shell_input_line_len = shell_input_line_index = 0;
ac50fbac
CR		 8500
8501 return ls;
509a4430
CR		 8502}
8503
8504void
8505restore_input_line_state (ls)
8506 sh_input_line_state_t *ls;
8507{
8508 FREE (shell_input_line);
8509 shell_input_line = ls->input_line;
8510 shell_input_line_size = ls->input_line_size;
8511 shell_input_line_len = ls->input_line_len;
8512 shell_input_line_index = ls->input_line_index;
8513
8514 set_line_mbstate ();
b80f6443
JA		 8515}
8516
7117c2d2
JA		 8517/************************************************
8518 * *
8519 * MULTIBYTE CHARACTER HANDLING *
8520 * *
8521 ************************************************/
8522
8523#if defined (HANDLE_MULTIBYTE)
8524static void
8525set_line_mbstate ()
8526{
ac50fbac
CR		 8527 int c;
8528 size_t i, previ, len;
7117c2d2
JA		 8529 mbstate_t mbs, prevs;
8530 size_t mbclen;
8531
8532 if (shell_input_line == NULL)
8533 return;
8534 len = strlen (shell_input_line); /* XXX - shell_input_line_len ? */
8535 FREE (shell_input_line_property);
8536 shell_input_line_property = (char *)xmalloc (len + 1);
8537
8538 memset (&prevs, '\0', sizeof (mbstate_t));
8539 for (i = previ = 0; i < len; i++)
8540 {
8541 mbs = prevs;
8542
b80f6443
JA		 8543 c = shell_input_line[i];
8544 if (c == EOF)
7117c2d2 8545 {
ac50fbac 8546 size_t j;
7117c2d2
JA		 8547 for (j = i; j < len; j++)
8548 shell_input_line_property[j] = 1;
8549 break;
8550 }
8551
8552 mbclen = mbrlen (shell_input_line + previ, i - previ + 1, &mbs);
8553 if (mbclen == 1 || mbclen == (size_t)-1)
8554 {
8555 mbclen = 1;
8556 previ = i + 1;
8557 }
8558 else if (mbclen == (size_t)-2)
8559 mbclen = 0;
8560 else if (mbclen > 1)
8561 {
8562 mbclen = 0;
8563 previ = i + 1;
8564 prevs = mbs;
8565 }
8566 else
8567 {
b80f6443 8568 /* XXX - what to do if mbrlen returns 0? (null wide character) */
ac50fbac 8569 size_t j;
b80f6443
JA		 8570 for (j = i; j < len; j++)
8571 shell_input_line_property[j] = 1;
8572 break;
7117c2d2
JA		 8573 }
8574
8575 shell_input_line_property[i] = mbclen;
8576 }
8577}
8578#endif /* HANDLE_MULTIBYTE */
90a39f32 8579
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