]>
Commit | Line | Data |
---|---|---|
726f6388 JA |
1 | /* print_command -- A way to make readable commands from a command tree. */ |
2 | /* Copyright (C) 1989 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GNU Bash, the Bourne Again SHell. | |
5 | ||
6 | Bash is free software; you can redistribute it and/or modify it under | |
7 | the terms of the GNU General Public License as published by the Free | |
bb70624e | 8 | Software Foundation; either version 2, or (at your option) any later |
726f6388 JA |
9 | version. |
10 | ||
11 | Bash is distributed in the hope that it will be useful, but WITHOUT ANY | |
12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
14 | for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License along | |
17 | with Bash; see the file COPYING. If not, write to the Free Software | |
bb70624e | 18 | Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */ |
726f6388 | 19 | |
ccc6cda3 JA |
20 | #include "config.h" |
21 | ||
726f6388 JA |
22 | #include <stdio.h> |
23 | ||
ccc6cda3 | 24 | #if defined (HAVE_UNISTD_H) |
cce855bc JA |
25 | # ifdef _MINIX |
26 | # include <sys/types.h> | |
27 | # endif | |
ccc6cda3 JA |
28 | # include <unistd.h> |
29 | #endif | |
30 | ||
31 | #if defined (PREFER_STDARG) | |
32 | # include <stdarg.h> | |
33 | #else | |
34 | # if defined (PREFER_VARARGS) | |
35 | # include <varargs.h> | |
36 | # endif | |
726f6388 JA |
37 | #endif |
38 | ||
ccc6cda3 | 39 | #include "bashansi.h" |
726f6388 JA |
40 | |
41 | #include "shell.h" | |
d166f048 | 42 | #include <y.tab.h> /* use <...> so we pick it up from the build directory */ |
726f6388 JA |
43 | #include "stdc.h" |
44 | #include "builtins/common.h" | |
45 | ||
f73dda09 | 46 | #if !HAVE_DECL_PRINTF |
726f6388 JA |
47 | extern int printf __P((const char *, ...)); /* Yuck. Double yuck. */ |
48 | #endif | |
49 | ||
ccc6cda3 | 50 | static int indentation; |
726f6388 JA |
51 | static int indentation_amount = 4; |
52 | ||
d166f048 | 53 | #if defined (PREFER_STDARG) |
f73dda09 JA |
54 | typedef void PFUNC __P((const char *, ...)); |
55 | ||
56 | static void cprintf __P((const char *, ...)) __attribute__((__format__ (printf, 1, 2))); | |
57 | static void xprintf __P((const char *, ...)) __attribute__((__format__ (printf, 1, 2))); | |
d166f048 | 58 | #else |
f73dda09 | 59 | #define PFUNC VFunction |
d166f048 | 60 | static void cprintf (); |
f73dda09 | 61 | static void xprintf (); |
d166f048 | 62 | #endif |
ccc6cda3 | 63 | |
f73dda09 JA |
64 | static void reset_locals __P((void)); |
65 | static void newline __P((char *)); | |
66 | static void indent __P((int)); | |
67 | static void semicolon __P((void)); | |
68 | static void the_printed_command_resize __P((int)); | |
726f6388 | 69 | |
f73dda09 JA |
70 | static void make_command_string_internal __P((COMMAND *)); |
71 | static void _print_word_list __P((WORD_LIST *, char *, PFUNC *)); | |
72 | static void command_print_word_list __P((WORD_LIST *, char *)); | |
73 | static void print_case_clauses __P((PATTERN_LIST *)); | |
74 | static void print_redirection_list __P((REDIRECT *)); | |
75 | static void print_redirection __P((REDIRECT *)); | |
726f6388 | 76 | |
f73dda09 JA |
77 | static void print_for_command __P((FOR_COM *)); |
78 | #if defined (ARITH_FOR_COMMAND) | |
79 | static void print_arith_for_command __P((ARITH_FOR_COM *)); | |
80 | #endif | |
726f6388 | 81 | #if defined (SELECT_COMMAND) |
f73dda09 | 82 | static void print_select_command __P((SELECT_COM *)); |
726f6388 | 83 | #endif |
f73dda09 JA |
84 | static void print_group_command __P((GROUP_COM *)); |
85 | static void print_case_command __P((CASE_COM *)); | |
86 | static void print_while_command __P((WHILE_COM *)); | |
87 | static void print_until_command __P((WHILE_COM *)); | |
88 | static void print_until_or_while __P((WHILE_COM *, char *)); | |
89 | static void print_if_command __P((IF_COM *)); | |
cce855bc | 90 | #if defined (DPAREN_ARITHMETIC) |
f73dda09 | 91 | static void print_arith_command __P((ARITH_COM *)); |
cce855bc JA |
92 | #endif |
93 | #if defined (COND_COMMAND) | |
f73dda09 JA |
94 | static void print_cond_node __P((COND_COM *)); |
95 | static void print_cond_command __P((COND_COM *)); | |
bb70624e | 96 | #endif |
f73dda09 | 97 | static void print_function_def __P((FUNCTION_DEF *)); |
726f6388 | 98 | |
d166f048 JA |
99 | #define PRINTED_COMMAND_INITIAL_SIZE 64 |
100 | #define PRINTED_COMMAND_GROW_SIZE 128 | |
726f6388 JA |
101 | |
102 | char *the_printed_command = (char *)NULL; | |
103 | int the_printed_command_size = 0; | |
104 | int command_string_index = 0; | |
105 | ||
106 | /* Non-zero means the stuff being printed is inside of a function def. */ | |
ccc6cda3 JA |
107 | static int inside_function_def; |
108 | static int skip_this_indent; | |
d166f048 | 109 | static int was_heredoc; |
726f6388 JA |
110 | |
111 | /* The depth of the group commands that we are currently printing. This | |
112 | includes the group command that is a function body. */ | |
ccc6cda3 | 113 | static int group_command_nesting; |
726f6388 JA |
114 | |
115 | /* Print COMMAND (a command tree) on standard output. */ | |
116 | void | |
117 | print_command (command) | |
118 | COMMAND *command; | |
119 | { | |
120 | command_string_index = 0; | |
121 | printf ("%s", make_command_string (command)); | |
122 | } | |
123 | ||
124 | /* Make a string which is the printed representation of the command | |
125 | tree in COMMAND. We return this string. However, the string is | |
126 | not consed, so you have to do that yourself if you want it to | |
127 | remain around. */ | |
128 | char * | |
129 | make_command_string (command) | |
130 | COMMAND *command; | |
131 | { | |
d166f048 | 132 | command_string_index = was_heredoc = 0; |
726f6388 JA |
133 | make_command_string_internal (command); |
134 | return (the_printed_command); | |
135 | } | |
136 | ||
137 | /* The internal function. This is the real workhorse. */ | |
138 | static void | |
139 | make_command_string_internal (command) | |
140 | COMMAND *command; | |
141 | { | |
ccc6cda3 | 142 | if (command == 0) |
726f6388 JA |
143 | cprintf (""); |
144 | else | |
145 | { | |
146 | if (skip_this_indent) | |
147 | skip_this_indent--; | |
148 | else | |
149 | indent (indentation); | |
150 | ||
ccc6cda3 | 151 | if (command->flags & CMD_TIME_PIPELINE) |
d166f048 JA |
152 | { |
153 | cprintf ("time "); | |
154 | if (command->flags & CMD_TIME_POSIX) | |
155 | cprintf ("-p "); | |
156 | } | |
ccc6cda3 | 157 | |
726f6388 JA |
158 | if (command->flags & CMD_INVERT_RETURN) |
159 | cprintf ("! "); | |
160 | ||
161 | switch (command->type) | |
162 | { | |
163 | case cm_for: | |
164 | print_for_command (command->value.For); | |
165 | break; | |
166 | ||
bb70624e JA |
167 | #if defined (ARITH_FOR_COMMAND) |
168 | case cm_arith_for: | |
169 | print_arith_for_command (command->value.ArithFor); | |
170 | break; | |
171 | #endif | |
172 | ||
726f6388 JA |
173 | #if defined (SELECT_COMMAND) |
174 | case cm_select: | |
175 | print_select_command (command->value.Select); | |
176 | break; | |
177 | #endif | |
178 | ||
179 | case cm_case: | |
180 | print_case_command (command->value.Case); | |
181 | break; | |
182 | ||
183 | case cm_while: | |
184 | print_while_command (command->value.While); | |
185 | break; | |
186 | ||
187 | case cm_until: | |
188 | print_until_command (command->value.While); | |
189 | break; | |
190 | ||
191 | case cm_if: | |
192 | print_if_command (command->value.If); | |
193 | break; | |
194 | ||
cce855bc JA |
195 | #if defined (DPAREN_ARITHMETIC) |
196 | case cm_arith: | |
197 | print_arith_command (command->value.Arith); | |
198 | break; | |
199 | #endif | |
200 | ||
201 | #if defined (COND_COMMAND) | |
202 | case cm_cond: | |
203 | print_cond_command (command->value.Cond); | |
204 | break; | |
205 | #endif | |
206 | ||
726f6388 JA |
207 | case cm_simple: |
208 | print_simple_command (command->value.Simple); | |
209 | break; | |
210 | ||
ccc6cda3 | 211 | case cm_connection: |
726f6388 JA |
212 | |
213 | skip_this_indent++; | |
214 | make_command_string_internal (command->value.Connection->first); | |
215 | ||
216 | switch (command->value.Connection->connector) | |
217 | { | |
218 | case '&': | |
219 | case '|': | |
220 | { | |
221 | char c = command->value.Connection->connector; | |
222 | cprintf (" %c", c); | |
223 | if (c != '&' || command->value.Connection->second) | |
224 | { | |
225 | cprintf (" "); | |
226 | skip_this_indent++; | |
227 | } | |
228 | } | |
229 | break; | |
230 | ||
231 | case AND_AND: | |
232 | cprintf (" && "); | |
233 | if (command->value.Connection->second) | |
234 | skip_this_indent++; | |
235 | break; | |
236 | ||
237 | case OR_OR: | |
238 | cprintf (" || "); | |
239 | if (command->value.Connection->second) | |
240 | skip_this_indent++; | |
241 | break; | |
ccc6cda3 | 242 | |
726f6388 | 243 | case ';': |
d166f048 JA |
244 | if (was_heredoc == 0) |
245 | cprintf (";"); | |
246 | else | |
247 | was_heredoc = 0; | |
726f6388 JA |
248 | |
249 | if (inside_function_def) | |
250 | cprintf ("\n"); | |
251 | else | |
252 | { | |
253 | cprintf (" "); | |
254 | if (command->value.Connection->second) | |
255 | skip_this_indent++; | |
256 | } | |
257 | break; | |
258 | ||
259 | default: | |
260 | cprintf ("print_command: bad connector `%d'", | |
261 | command->value.Connection->connector); | |
262 | break; | |
263 | } | |
264 | ||
265 | make_command_string_internal (command->value.Connection->second); | |
266 | break; | |
ccc6cda3 | 267 | |
726f6388 JA |
268 | case cm_function_def: |
269 | print_function_def (command->value.Function_def); | |
270 | break; | |
271 | ||
272 | case cm_group: | |
273 | print_group_command (command->value.Group); | |
274 | break; | |
275 | ||
bb70624e JA |
276 | case cm_subshell: |
277 | cprintf ("( "); | |
278 | skip_this_indent++; | |
279 | make_command_string_internal (command->value.Subshell->command); | |
280 | cprintf (" )"); | |
281 | break; | |
282 | ||
726f6388 | 283 | default: |
b72432fd | 284 | command_error ("print_command", CMDERR_BADTYPE, command->type, 0); |
726f6388 JA |
285 | break; |
286 | } | |
287 | ||
726f6388 JA |
288 | |
289 | if (command->redirects) | |
b72432fd JA |
290 | { |
291 | cprintf (" "); | |
292 | print_redirection_list (command->redirects); | |
293 | } | |
726f6388 JA |
294 | } |
295 | } | |
296 | ||
297 | static void | |
298 | _print_word_list (list, separator, pfunc) | |
299 | WORD_LIST *list; | |
300 | char *separator; | |
f73dda09 | 301 | PFUNC *pfunc; |
726f6388 | 302 | { |
ccc6cda3 JA |
303 | WORD_LIST *w; |
304 | ||
305 | for (w = list; w; w = w->next) | |
306 | (*pfunc) ("%s%s", w->word->word, w->next ? separator : ""); | |
726f6388 JA |
307 | } |
308 | ||
ccc6cda3 JA |
309 | void |
310 | print_word_list (list, separator) | |
726f6388 JA |
311 | WORD_LIST *list; |
312 | char *separator; | |
313 | { | |
ccc6cda3 JA |
314 | _print_word_list (list, separator, xprintf); |
315 | } | |
316 | ||
317 | /* A function to print the words of a simple command when set -x is on. */ | |
318 | void | |
319 | xtrace_print_word_list (list) | |
320 | WORD_LIST *list; | |
321 | { | |
322 | WORD_LIST *w; | |
e8ce775d | 323 | char *t, *x; |
ccc6cda3 JA |
324 | |
325 | fprintf (stderr, "%s", indirection_level_string ()); | |
326 | for (w = list; w; w = w->next) | |
327 | { | |
328 | t = w->word->word; | |
329 | if (t == 0 || *t == '\0') | |
e8ce775d | 330 | fprintf (stderr, "''%s", w->next ? " " : ""); |
28ef6c31 | 331 | else if (sh_contains_shell_metas (t)) |
e8ce775d | 332 | { |
28ef6c31 | 333 | x = sh_single_quote (t); |
e8ce775d JA |
334 | fprintf (stderr, "%s%s", x, w->next ? " " : ""); |
335 | free (x); | |
336 | } | |
ccc6cda3 | 337 | else |
e8ce775d | 338 | fprintf (stderr, "%s%s", t, w->next ? " " : ""); |
ccc6cda3 JA |
339 | } |
340 | fprintf (stderr, "\n"); | |
726f6388 JA |
341 | } |
342 | ||
343 | static void | |
344 | command_print_word_list (list, separator) | |
345 | WORD_LIST *list; | |
346 | char *separator; | |
347 | { | |
348 | _print_word_list (list, separator, cprintf); | |
349 | } | |
350 | ||
351 | static void | |
352 | print_for_command (for_command) | |
353 | FOR_COM *for_command; | |
354 | { | |
355 | cprintf ("for %s in ", for_command->name->word); | |
356 | command_print_word_list (for_command->map_list, " "); | |
357 | cprintf (";"); | |
358 | newline ("do\n"); | |
359 | indentation += indentation_amount; | |
360 | make_command_string_internal (for_command->action); | |
361 | semicolon (); | |
362 | indentation -= indentation_amount; | |
363 | newline ("done"); | |
364 | } | |
365 | ||
bb70624e JA |
366 | #if defined (ARITH_FOR_COMMAND) |
367 | static void | |
368 | print_arith_for_command (arith_for_command) | |
369 | ARITH_FOR_COM *arith_for_command; | |
370 | { | |
371 | cprintf ("for (( "); | |
372 | command_print_word_list (arith_for_command->init, " "); | |
373 | cprintf (" ; "); | |
374 | command_print_word_list (arith_for_command->test, " "); | |
375 | cprintf (" ; "); | |
376 | command_print_word_list (arith_for_command->step, " "); | |
377 | cprintf (" ))"); | |
378 | newline ("do\n"); | |
379 | indentation += indentation_amount; | |
380 | make_command_string_internal (arith_for_command->action); | |
381 | semicolon (); | |
382 | indentation -= indentation_amount; | |
383 | newline ("done"); | |
384 | } | |
385 | #endif /* ARITH_FOR_COMMAND */ | |
386 | ||
726f6388 JA |
387 | #if defined (SELECT_COMMAND) |
388 | static void | |
389 | print_select_command (select_command) | |
390 | SELECT_COM *select_command; | |
391 | { | |
392 | cprintf ("select %s in ", select_command->name->word); | |
393 | command_print_word_list (select_command->map_list, " "); | |
394 | cprintf (";"); | |
395 | newline ("do\n"); | |
396 | indentation += indentation_amount; | |
397 | make_command_string_internal (select_command->action); | |
398 | semicolon (); | |
399 | indentation -= indentation_amount; | |
400 | newline ("done"); | |
401 | } | |
402 | #endif /* SELECT_COMMAND */ | |
403 | ||
404 | static void | |
405 | print_group_command (group_command) | |
406 | GROUP_COM *group_command; | |
407 | { | |
408 | group_command_nesting++; | |
409 | cprintf ("{ "); | |
410 | ||
ccc6cda3 | 411 | if (inside_function_def == 0) |
726f6388 JA |
412 | skip_this_indent++; |
413 | else | |
414 | { | |
415 | /* This is a group command { ... } inside of a function | |
ccc6cda3 | 416 | definition, and should be printed as a multiline group |
726f6388 JA |
417 | command, using the current indentation. */ |
418 | cprintf ("\n"); | |
419 | indentation += indentation_amount; | |
420 | } | |
421 | ||
422 | make_command_string_internal (group_command->command); | |
423 | ||
ccc6cda3 | 424 | if (inside_function_def) |
726f6388 | 425 | { |
ccc6cda3 | 426 | cprintf ("\n"); |
726f6388 JA |
427 | indentation -= indentation_amount; |
428 | indent (indentation); | |
726f6388 | 429 | } |
ccc6cda3 JA |
430 | else |
431 | { | |
432 | semicolon (); | |
433 | cprintf (" "); | |
434 | } | |
435 | ||
726f6388 | 436 | cprintf ("}"); |
ccc6cda3 | 437 | |
726f6388 JA |
438 | group_command_nesting--; |
439 | } | |
440 | ||
441 | static void | |
442 | print_case_command (case_command) | |
443 | CASE_COM *case_command; | |
444 | { | |
445 | cprintf ("case %s in ", case_command->word->word); | |
446 | if (case_command->clauses) | |
447 | print_case_clauses (case_command->clauses); | |
448 | newline ("esac"); | |
449 | } | |
450 | ||
451 | static void | |
452 | print_case_clauses (clauses) | |
453 | PATTERN_LIST *clauses; | |
454 | { | |
455 | indentation += indentation_amount; | |
456 | while (clauses) | |
457 | { | |
458 | newline (""); | |
459 | command_print_word_list (clauses->patterns, " | "); | |
460 | cprintf (")\n"); | |
461 | indentation += indentation_amount; | |
462 | make_command_string_internal (clauses->action); | |
463 | indentation -= indentation_amount; | |
464 | newline (";;"); | |
465 | clauses = clauses->next; | |
466 | } | |
467 | indentation -= indentation_amount; | |
468 | } | |
469 | ||
470 | static void | |
471 | print_while_command (while_command) | |
472 | WHILE_COM *while_command; | |
473 | { | |
474 | print_until_or_while (while_command, "while"); | |
475 | } | |
476 | ||
477 | static void | |
478 | print_until_command (while_command) | |
479 | WHILE_COM *while_command; | |
480 | { | |
481 | print_until_or_while (while_command, "until"); | |
482 | } | |
483 | ||
484 | static void | |
485 | print_until_or_while (while_command, which) | |
486 | WHILE_COM *while_command; | |
487 | char *which; | |
488 | { | |
489 | cprintf ("%s ", which); | |
490 | skip_this_indent++; | |
491 | make_command_string_internal (while_command->test); | |
492 | semicolon (); | |
493 | cprintf (" do\n"); /* was newline ("do\n"); */ | |
494 | indentation += indentation_amount; | |
495 | make_command_string_internal (while_command->action); | |
496 | indentation -= indentation_amount; | |
497 | semicolon (); | |
498 | newline ("done"); | |
499 | } | |
500 | ||
501 | static void | |
502 | print_if_command (if_command) | |
503 | IF_COM *if_command; | |
504 | { | |
505 | cprintf ("if "); | |
506 | skip_this_indent++; | |
507 | make_command_string_internal (if_command->test); | |
508 | semicolon (); | |
509 | cprintf (" then\n"); | |
510 | indentation += indentation_amount; | |
511 | make_command_string_internal (if_command->true_case); | |
512 | indentation -= indentation_amount; | |
513 | ||
514 | if (if_command->false_case) | |
515 | { | |
516 | semicolon (); | |
517 | newline ("else\n"); | |
518 | indentation += indentation_amount; | |
519 | make_command_string_internal (if_command->false_case); | |
520 | indentation -= indentation_amount; | |
521 | } | |
522 | semicolon (); | |
523 | newline ("fi"); | |
524 | } | |
525 | ||
cce855bc JA |
526 | #if defined (DPAREN_ARITHMETIC) |
527 | static void | |
528 | print_arith_command (arith_command) | |
529 | ARITH_COM *arith_command; | |
530 | { | |
531 | cprintf ("(( "); | |
532 | command_print_word_list (arith_command->exp, " "); | |
533 | cprintf (" ))"); | |
534 | } | |
bb70624e | 535 | #endif |
cce855bc JA |
536 | |
537 | #if defined (COND_COMMAND) | |
538 | static void | |
539 | print_cond_node (cond) | |
540 | COND_COM *cond; | |
541 | { | |
542 | if (cond->flags & CMD_INVERT_RETURN) | |
543 | cprintf ("! "); | |
544 | ||
545 | if (cond->type == COND_EXPR) | |
546 | { | |
547 | cprintf ("( "); | |
548 | print_cond_node (cond->left); | |
549 | cprintf (" )"); | |
550 | } | |
551 | else if (cond->type == COND_AND) | |
552 | { | |
553 | print_cond_node (cond->left); | |
554 | cprintf (" && "); | |
555 | print_cond_node (cond->right); | |
556 | } | |
557 | else if (cond->type == COND_OR) | |
558 | { | |
559 | print_cond_node (cond->left); | |
560 | cprintf (" || "); | |
561 | print_cond_node (cond->right); | |
562 | } | |
563 | else if (cond->type == COND_UNARY) | |
564 | { | |
b72432fd | 565 | cprintf ("%s", cond->op->word); |
cce855bc JA |
566 | cprintf (" "); |
567 | print_cond_node (cond->left); | |
568 | } | |
569 | else if (cond->type == COND_BINARY) | |
570 | { | |
571 | print_cond_node (cond->left); | |
572 | cprintf (" "); | |
b72432fd | 573 | cprintf ("%s", cond->op->word); |
cce855bc JA |
574 | cprintf (" "); |
575 | print_cond_node (cond->right); | |
576 | } | |
577 | else if (cond->type == COND_TERM) | |
578 | { | |
b72432fd | 579 | cprintf ("%s", cond->op->word); /* need to add quoting here */ |
cce855bc JA |
580 | } |
581 | } | |
582 | ||
583 | static void | |
584 | print_cond_command (cond) | |
585 | COND_COM *cond; | |
586 | { | |
587 | cprintf ("[[ "); | |
588 | print_cond_node (cond); | |
589 | cprintf (" ]]"); | |
590 | } | |
591 | ||
28ef6c31 | 592 | #ifdef DEBUG |
cce855bc JA |
593 | void |
594 | debug_print_cond_command (cond) | |
595 | COND_COM *cond; | |
596 | { | |
597 | fprintf (stderr, "DEBUG: "); | |
598 | command_string_index = 0; | |
599 | print_cond_command (cond); | |
600 | fprintf (stderr, "%s\n", the_printed_command); | |
601 | } | |
28ef6c31 | 602 | #endif |
cce855bc JA |
603 | |
604 | void | |
605 | xtrace_print_cond_term (type, invert, op, arg1, arg2) | |
606 | int type, invert; | |
607 | WORD_DESC *op; | |
608 | char *arg1, *arg2; | |
609 | { | |
610 | command_string_index = 0; | |
611 | fprintf (stderr, "%s", indirection_level_string ()); | |
612 | fprintf (stderr, "[[ "); | |
613 | if (invert) | |
614 | fprintf (stderr, "! "); | |
615 | ||
616 | if (type == COND_UNARY) | |
617 | { | |
618 | fprintf (stderr, "%s ", op->word); | |
619 | fprintf (stderr, "%s", (arg1 && *arg1) ? arg1 : "''"); | |
620 | } | |
621 | else if (type == COND_BINARY) | |
622 | { | |
623 | fprintf (stderr, "%s", (arg1 && *arg1) ? arg1 : "''"); | |
624 | fprintf (stderr, " %s ", op->word); | |
625 | fprintf (stderr, "%s", (arg2 && *arg2) ? arg2 : "''"); | |
626 | } | |
627 | ||
628 | fprintf (stderr, " ]]\n"); | |
629 | } | |
630 | #endif /* COND_COMMAND */ | |
631 | ||
bb70624e | 632 | #if defined (DPAREN_ARITHMETIC) || defined (ARITH_FOR_COMMAND) |
cce855bc JA |
633 | /* A function to print the words of an arithmetic command when set -x is on. */ |
634 | void | |
635 | xtrace_print_arith_cmd (list) | |
636 | WORD_LIST *list; | |
637 | { | |
638 | WORD_LIST *w; | |
639 | ||
640 | fprintf (stderr, "%s", indirection_level_string ()); | |
641 | fprintf (stderr, "(( "); | |
642 | for (w = list; w; w = w->next) | |
643 | fprintf (stderr, "%s%s", w->word->word, w->next ? " " : ""); | |
644 | fprintf (stderr, " ))\n"); | |
645 | } | |
646 | #endif | |
647 | ||
726f6388 JA |
648 | void |
649 | print_simple_command (simple_command) | |
650 | SIMPLE_COM *simple_command; | |
651 | { | |
652 | command_print_word_list (simple_command->words, " "); | |
653 | ||
654 | if (simple_command->redirects) | |
655 | { | |
656 | cprintf (" "); | |
657 | print_redirection_list (simple_command->redirects); | |
658 | } | |
659 | } | |
660 | ||
661 | static void | |
662 | print_redirection_list (redirects) | |
663 | REDIRECT *redirects; | |
664 | { | |
d166f048 JA |
665 | REDIRECT *heredocs, *hdtail, *newredir; |
666 | ||
667 | heredocs = (REDIRECT *)NULL; | |
668 | hdtail = heredocs; | |
669 | ||
670 | was_heredoc = 0; | |
726f6388 JA |
671 | while (redirects) |
672 | { | |
d166f048 JA |
673 | /* Defer printing the here documents until we've printed the |
674 | rest of the redirections. */ | |
675 | if (redirects->instruction == r_reading_until || redirects->instruction == r_deblank_reading_until) | |
676 | { | |
677 | newredir = copy_redirect (redirects); | |
678 | newredir->next = (REDIRECT *)NULL; | |
679 | if (heredocs) | |
680 | { | |
681 | hdtail->next = newredir; | |
682 | hdtail = newredir; | |
683 | } | |
684 | else | |
685 | hdtail = heredocs = newredir; | |
686 | } | |
687 | else | |
688 | print_redirection (redirects); | |
689 | ||
726f6388 JA |
690 | redirects = redirects->next; |
691 | if (redirects) | |
692 | cprintf (" "); | |
693 | } | |
d166f048 JA |
694 | |
695 | /* Now that we've printed all the other redirections (on one line), | |
696 | print the here documents. */ | |
697 | if (heredocs) | |
698 | { | |
699 | cprintf (" "); | |
700 | for (hdtail = heredocs; hdtail; hdtail = hdtail->next) | |
28ef6c31 | 701 | { |
d166f048 JA |
702 | print_redirection (hdtail); |
703 | cprintf ("\n"); | |
28ef6c31 | 704 | } |
d166f048 JA |
705 | dispose_redirects (heredocs); |
706 | was_heredoc = 1; | |
707 | } | |
726f6388 JA |
708 | } |
709 | ||
710 | static void | |
711 | print_redirection (redirect) | |
712 | REDIRECT *redirect; | |
713 | { | |
d166f048 JA |
714 | int kill_leading, redirector, redir_fd; |
715 | WORD_DESC *redirectee; | |
716 | ||
717 | kill_leading = 0; | |
718 | redirectee = redirect->redirectee.filename; | |
719 | redirector = redirect->redirector; | |
720 | redir_fd = redirect->redirectee.dest; | |
726f6388 JA |
721 | |
722 | switch (redirect->instruction) | |
723 | { | |
724 | case r_output_direction: | |
725 | if (redirector != 1) | |
726 | cprintf ("%d", redirector); | |
727 | cprintf (">%s", redirectee->word); | |
728 | break; | |
729 | ||
730 | case r_input_direction: | |
731 | if (redirector != 0) | |
732 | cprintf ("%d", redirector); | |
733 | cprintf ("<%s", redirectee->word); | |
734 | break; | |
735 | ||
736 | case r_inputa_direction: /* Redirection created by the shell. */ | |
737 | cprintf ("&"); | |
738 | break; | |
739 | ||
740 | case r_appending_to: | |
741 | if (redirector != 1) | |
742 | cprintf ("%d", redirector); | |
743 | cprintf (">>%s", redirectee->word); | |
744 | break; | |
745 | ||
746 | case r_deblank_reading_until: | |
747 | kill_leading++; | |
748 | /* ... */ | |
749 | case r_reading_until: | |
750 | if (redirector != 0) | |
751 | cprintf ("%d", redirector); | |
752 | /* If the here document delimiter is quoted, single-quote it. */ | |
ccc6cda3 | 753 | if (redirect->redirectee.filename->flags & W_QUOTED) |
28ef6c31 JA |
754 | { |
755 | char *x; | |
756 | x = sh_single_quote (redirect->here_doc_eof); | |
726f6388 | 757 | cprintf ("<<%s%s\n", kill_leading? "-" : "", x); |
28ef6c31 JA |
758 | free (x); |
759 | } | |
726f6388 JA |
760 | else |
761 | cprintf ("<<%s%s\n", kill_leading? "-" : "", redirect->here_doc_eof); | |
762 | cprintf ("%s%s", | |
763 | redirect->redirectee.filename->word, redirect->here_doc_eof); | |
764 | break; | |
765 | ||
766 | case r_duplicating_input: | |
767 | cprintf ("%d<&%d", redirector, redir_fd); | |
768 | break; | |
769 | ||
770 | case r_duplicating_output: | |
771 | cprintf ("%d>&%d", redirector, redir_fd); | |
772 | break; | |
773 | ||
774 | case r_duplicating_input_word: | |
775 | cprintf ("%d<&%s", redirector, redirectee->word); | |
776 | break; | |
777 | ||
778 | case r_duplicating_output_word: | |
779 | cprintf ("%d>&%s", redirector, redirectee->word); | |
780 | break; | |
781 | ||
782 | case r_close_this: | |
783 | cprintf ("%d>&-", redirector); | |
784 | break; | |
785 | ||
786 | case r_err_and_out: | |
787 | cprintf (">&%s", redirectee->word); | |
788 | break; | |
789 | ||
790 | case r_input_output: | |
791 | if (redirector != 1) | |
792 | cprintf ("%d", redirector); | |
793 | cprintf ("<>%s", redirectee->word); | |
794 | break; | |
795 | ||
796 | case r_output_force: | |
797 | if (redirector != 1) | |
798 | cprintf ("%d", redirector); | |
799 | cprintf (">|%s", redirectee->word); | |
800 | break; | |
801 | } | |
802 | } | |
803 | ||
804 | static void | |
805 | reset_locals () | |
806 | { | |
807 | inside_function_def = 0; | |
808 | indentation = 0; | |
809 | } | |
810 | ||
811 | static void | |
812 | print_function_def (func) | |
813 | FUNCTION_DEF *func; | |
814 | { | |
bb70624e JA |
815 | COMMAND *cmdcopy; |
816 | REDIRECT *func_redirects; | |
817 | ||
f73dda09 | 818 | func_redirects = NULL; |
726f6388 JA |
819 | cprintf ("function %s () \n", func->name->word); |
820 | add_unwind_protect (reset_locals, 0); | |
821 | ||
822 | indent (indentation); | |
823 | cprintf ("{ \n"); | |
824 | ||
825 | inside_function_def++; | |
826 | indentation += indentation_amount; | |
827 | ||
bb70624e JA |
828 | cmdcopy = copy_command (func->command); |
829 | if (cmdcopy->type == cm_group) | |
830 | { | |
28ef6c31 JA |
831 | func_redirects = cmdcopy->redirects; |
832 | cmdcopy->redirects = (REDIRECT *)NULL; | |
bb70624e JA |
833 | } |
834 | make_command_string_internal (cmdcopy->type == cm_group | |
835 | ? cmdcopy->value.Group->command | |
836 | : cmdcopy); | |
ccc6cda3 | 837 | |
726f6388 JA |
838 | remove_unwind_protect (); |
839 | indentation -= indentation_amount; | |
840 | inside_function_def--; | |
841 | ||
bb70624e JA |
842 | if (func_redirects) |
843 | { /* { */ | |
844 | newline ("} "); | |
845 | print_redirection_list (func_redirects); | |
28ef6c31 | 846 | cmdcopy->redirects = func_redirects; |
bb70624e JA |
847 | } |
848 | else | |
849 | newline ("}"); | |
850 | ||
851 | dispose_command (cmdcopy); | |
726f6388 JA |
852 | } |
853 | ||
854 | /* Return the string representation of the named function. | |
855 | NAME is the name of the function. | |
856 | COMMAND is the function body. It should be a GROUP_COM. | |
857 | MULTI_LINE is non-zero to pretty-print, or zero for all on one line. | |
858 | */ | |
859 | char * | |
860 | named_function_string (name, command, multi_line) | |
861 | char *name; | |
862 | COMMAND *command; | |
863 | int multi_line; | |
864 | { | |
865 | char *result; | |
ccc6cda3 | 866 | int old_indent, old_amount; |
bb70624e JA |
867 | COMMAND *cmdcopy; |
868 | REDIRECT *func_redirects; | |
726f6388 | 869 | |
ccc6cda3 JA |
870 | old_indent = indentation; |
871 | old_amount = indentation_amount; | |
d166f048 | 872 | command_string_index = was_heredoc = 0; |
726f6388 JA |
873 | |
874 | if (name && *name) | |
875 | cprintf ("%s ", name); | |
876 | ||
877 | cprintf ("() "); | |
878 | ||
ccc6cda3 | 879 | if (multi_line == 0) |
726f6388 JA |
880 | { |
881 | indentation = 1; | |
882 | indentation_amount = 0; | |
883 | } | |
884 | else | |
885 | { | |
886 | cprintf ("\n"); | |
887 | indentation += indentation_amount; | |
888 | } | |
889 | ||
890 | inside_function_def++; | |
891 | ||
ccc6cda3 | 892 | cprintf (multi_line ? "{ \n" : "{ "); |
726f6388 | 893 | |
bb70624e JA |
894 | cmdcopy = copy_command (command); |
895 | /* Take any redirections specified in the function definition (which should | |
896 | apply to the function as a whole) and save them for printing later. */ | |
897 | func_redirects = (REDIRECT *)NULL; | |
898 | if (cmdcopy->type == cm_group) | |
899 | { | |
28ef6c31 JA |
900 | func_redirects = cmdcopy->redirects; |
901 | cmdcopy->redirects = (REDIRECT *)NULL; | |
bb70624e JA |
902 | } |
903 | make_command_string_internal (cmdcopy->type == cm_group | |
904 | ? cmdcopy->value.Group->command | |
905 | : cmdcopy); | |
726f6388 JA |
906 | |
907 | indentation = old_indent; | |
908 | indentation_amount = old_amount; | |
909 | inside_function_def--; | |
910 | ||
bb70624e JA |
911 | if (func_redirects) |
912 | { /* { */ | |
913 | newline ("} "); | |
914 | print_redirection_list (func_redirects); | |
28ef6c31 | 915 | cmdcopy->redirects = func_redirects; |
bb70624e JA |
916 | } |
917 | else | |
918 | newline ("}"); | |
726f6388 JA |
919 | |
920 | result = the_printed_command; | |
921 | ||
922 | if (!multi_line) | |
923 | { | |
924 | #if 0 | |
925 | register int i; | |
926 | for (i = 0; result[i]; i++) | |
927 | if (result[i] == '\n') | |
928 | { | |
929 | strcpy (result + i, result + i + 1); | |
930 | --i; | |
931 | } | |
932 | #else | |
933 | if (result[2] == '\n') /* XXX -- experimental */ | |
28ef6c31 | 934 | strcpy (result + 2, result + 3); |
726f6388 JA |
935 | #endif |
936 | } | |
937 | ||
bb70624e JA |
938 | dispose_command (cmdcopy); |
939 | ||
726f6388 JA |
940 | return (result); |
941 | } | |
942 | ||
943 | static void | |
944 | newline (string) | |
945 | char *string; | |
946 | { | |
947 | cprintf ("\n"); | |
948 | indent (indentation); | |
949 | if (string && *string) | |
950 | cprintf ("%s", string); | |
951 | } | |
952 | ||
ccc6cda3 JA |
953 | static char *indentation_string; |
954 | static int indentation_size; | |
955 | ||
726f6388 JA |
956 | static void |
957 | indent (amount) | |
958 | int amount; | |
959 | { | |
ccc6cda3 JA |
960 | register int i; |
961 | ||
962 | RESIZE_MALLOCED_BUFFER (indentation_string, 0, amount, indentation_size, 16); | |
963 | ||
964 | for (i = 0; amount > 0; amount--) | |
965 | indentation_string[i++] = ' '; | |
966 | indentation_string[i] = '\0'; | |
967 | cprintf (indentation_string); | |
726f6388 JA |
968 | } |
969 | ||
970 | static void | |
971 | semicolon () | |
972 | { | |
973 | if (command_string_index > 0 && the_printed_command[command_string_index - 1] == '&') | |
974 | return; | |
975 | cprintf (";"); | |
976 | } | |
977 | ||
ccc6cda3 | 978 | #if !defined (USE_VARARGS) |
726f6388 JA |
979 | /* How to make the string. */ |
980 | static void | |
981 | cprintf (format, arg1, arg2) | |
f73dda09 JA |
982 | const char *format; |
983 | char *arg1, *arg2; | |
726f6388 | 984 | { |
f73dda09 JA |
985 | register const char *s; |
986 | char char_arg[2], *argp, *args[2], intbuf[INT_STRLEN_BOUND(int) + 1]; | |
987 | int arg_len, c, arg_index, digit_arg; | |
726f6388 JA |
988 | |
989 | args[arg_index = 0] = arg1; | |
990 | args[1] = arg2; | |
991 | ||
992 | arg_len = strlen (format); | |
993 | the_printed_command_resize (arg_len + 1); | |
994 | ||
995 | char_arg[1] = '\0'; | |
996 | s = format; | |
997 | while (s && *s) | |
998 | { | |
999 | int free_argp = 0; | |
1000 | c = *s++; | |
1001 | if (c != '%' || !*s) | |
1002 | { | |
f73dda09 JA |
1003 | char_arg[0] = c; |
1004 | argp = char_arg; | |
726f6388 JA |
1005 | arg_len = 1; |
1006 | } | |
1007 | else | |
1008 | { | |
1009 | c = *s++; | |
1010 | switch (c) | |
1011 | { | |
1012 | case '%': | |
1013 | char_arg[0] = c; | |
1014 | argp = char_arg; | |
1015 | arg_len = 1; | |
1016 | break; | |
1017 | ||
1018 | case 's': | |
1019 | argp = (char *)args[arg_index++]; | |
1020 | arg_len = strlen (argp); | |
1021 | break; | |
1022 | ||
1023 | case 'd': | |
f73dda09 JA |
1024 | /* Represent an out-of-range file descriptor with an out-of-range |
1025 | integer value. We can do this because the only use of `%d' in | |
1026 | the calls to cprintf is to output a file descriptor number for | |
1027 | a redirection. */ | |
1028 | digit_arg = pointer_to_int (args[arg_index]); | |
1029 | if (digit_arg < 0) | |
1030 | { | |
1031 | sprintf (intbuf, "%u", (unsigned)-1); | |
1032 | argp = intbuf; | |
1033 | } | |
1034 | else | |
1035 | argp = inttostr (digit_arg, intbuf, sizeof (intbuf)); | |
726f6388 JA |
1036 | arg_index++; |
1037 | arg_len = strlen (argp); | |
726f6388 JA |
1038 | break; |
1039 | ||
1040 | case 'c': | |
1041 | char_arg[0] = pointer_to_int (args[arg_index]); | |
1042 | arg_index++; | |
1043 | argp = char_arg; | |
1044 | arg_len = 1; | |
1045 | break; | |
1046 | ||
1047 | default: | |
1048 | programming_error ("cprintf: bad `%%' argument (%c)", c); | |
1049 | } | |
1050 | } | |
1051 | if (argp) | |
1052 | { | |
1053 | the_printed_command_resize (arg_len + 1); | |
1054 | FASTCOPY (argp, the_printed_command + command_string_index, arg_len); | |
1055 | command_string_index += arg_len; | |
1056 | if (free_argp) | |
1057 | free (argp); | |
1058 | } | |
1059 | } | |
1060 | ||
1061 | the_printed_command[command_string_index] = '\0'; | |
1062 | } | |
1063 | ||
1064 | #else /* We have support for varargs. */ | |
1065 | ||
1066 | /* How to make the string. */ | |
1067 | static void | |
ccc6cda3 | 1068 | #if defined (PREFER_STDARG) |
f73dda09 | 1069 | cprintf (const char *control, ...) |
ccc6cda3 JA |
1070 | #else |
1071 | cprintf (control, va_alist) | |
f73dda09 | 1072 | const char *control; |
726f6388 | 1073 | va_dcl |
ccc6cda3 | 1074 | #endif |
726f6388 | 1075 | { |
f73dda09 JA |
1076 | register const char *s; |
1077 | char char_arg[2], *argp, intbuf[INT_STRLEN_BOUND (int) + 1]; | |
726f6388 JA |
1078 | int digit_arg, arg_len, c; |
1079 | va_list args; | |
1080 | ||
ccc6cda3 JA |
1081 | #if defined (PREFER_STDARG) |
1082 | va_start (args, control); | |
1083 | #else | |
726f6388 | 1084 | va_start (args); |
ccc6cda3 | 1085 | #endif |
726f6388 JA |
1086 | |
1087 | arg_len = strlen (control); | |
1088 | the_printed_command_resize (arg_len + 1); | |
1089 | ||
1090 | char_arg[1] = '\0'; | |
1091 | s = control; | |
1092 | while (s && *s) | |
1093 | { | |
ccc6cda3 JA |
1094 | int free_argp; |
1095 | free_argp = 0; | |
726f6388 | 1096 | c = *s++; |
ccc6cda3 | 1097 | argp = (char *)NULL; |
726f6388 JA |
1098 | if (c != '%' || !*s) |
1099 | { | |
f73dda09 JA |
1100 | char_arg[0] = c; |
1101 | argp = char_arg; | |
726f6388 JA |
1102 | arg_len = 1; |
1103 | } | |
1104 | else | |
1105 | { | |
1106 | c = *s++; | |
1107 | switch (c) | |
1108 | { | |
1109 | case '%': | |
1110 | char_arg[0] = c; | |
1111 | argp = char_arg; | |
1112 | arg_len = 1; | |
1113 | break; | |
1114 | ||
1115 | case 's': | |
1116 | argp = va_arg (args, char *); | |
1117 | arg_len = strlen (argp); | |
1118 | break; | |
1119 | ||
1120 | case 'd': | |
f73dda09 JA |
1121 | /* Represent an out-of-range file descriptor with an out-of-range |
1122 | integer value. We can do this because the only use of `%d' in | |
1123 | the calls to cprintf is to output a file descriptor number for | |
1124 | a redirection. */ | |
726f6388 | 1125 | digit_arg = va_arg (args, int); |
f73dda09 JA |
1126 | if (digit_arg < 0) |
1127 | { | |
1128 | sprintf (intbuf, "%u", (unsigned)-1); | |
1129 | argp = intbuf; | |
1130 | } | |
1131 | else | |
1132 | argp = inttostr (digit_arg, intbuf, sizeof (intbuf)); | |
726f6388 | 1133 | arg_len = strlen (argp); |
726f6388 JA |
1134 | break; |
1135 | ||
1136 | case 'c': | |
1137 | char_arg[0] = va_arg (args, int); | |
1138 | argp = char_arg; | |
1139 | arg_len = 1; | |
1140 | break; | |
1141 | ||
1142 | default: | |
1143 | programming_error ("cprintf: bad `%%' argument (%c)", c); | |
ccc6cda3 | 1144 | /*NOTREACHED*/ |
726f6388 JA |
1145 | } |
1146 | } | |
1147 | ||
ccc6cda3 | 1148 | if (argp && arg_len) |
726f6388 JA |
1149 | { |
1150 | the_printed_command_resize (arg_len + 1); | |
1151 | FASTCOPY (argp, the_printed_command + command_string_index, arg_len); | |
1152 | command_string_index += arg_len; | |
1153 | if (free_argp) | |
1154 | free (argp); | |
1155 | } | |
1156 | } | |
1157 | ||
1158 | the_printed_command[command_string_index] = '\0'; | |
1159 | } | |
1160 | #endif /* HAVE_VARARGS_H */ | |
1161 | ||
1162 | /* Ensure that there is enough space to stuff LENGTH characters into | |
1163 | THE_PRINTED_COMMAND. */ | |
1164 | static void | |
1165 | the_printed_command_resize (length) | |
1166 | int length; | |
1167 | { | |
d166f048 | 1168 | if (the_printed_command == 0) |
726f6388 | 1169 | { |
d166f048 | 1170 | the_printed_command_size = (length + PRINTED_COMMAND_INITIAL_SIZE - 1) & ~(PRINTED_COMMAND_INITIAL_SIZE - 1); |
f73dda09 | 1171 | the_printed_command = (char *)xmalloc (the_printed_command_size); |
726f6388 JA |
1172 | command_string_index = 0; |
1173 | } | |
1174 | else if ((command_string_index + length) >= the_printed_command_size) | |
1175 | { | |
1176 | int new; | |
1177 | new = command_string_index + length + 1; | |
bb70624e | 1178 | |
d166f048 JA |
1179 | /* Round up to the next multiple of PRINTED_COMMAND_GROW_SIZE. */ |
1180 | new = (new + PRINTED_COMMAND_GROW_SIZE - 1) & ~(PRINTED_COMMAND_GROW_SIZE - 1); | |
726f6388 | 1181 | the_printed_command_size = new; |
bb70624e | 1182 | |
f73dda09 | 1183 | the_printed_command = (char *)xrealloc (the_printed_command, the_printed_command_size); |
726f6388 JA |
1184 | } |
1185 | } | |
ccc6cda3 | 1186 | |
f73dda09 JA |
1187 | #if defined (HAVE_VPRINTF) |
1188 | /* ``If vprintf is available, you may assume that vfprintf and vsprintf are | |
1189 | also available.'' */ | |
ccc6cda3 JA |
1190 | |
1191 | static void | |
d166f048 JA |
1192 | #if defined (PREFER_STDARG) |
1193 | xprintf (const char *format, ...) | |
1194 | #else | |
1195 | xprintf (format, va_alist) | |
1196 | const char *format; | |
ccc6cda3 | 1197 | va_dcl |
d166f048 | 1198 | #endif |
ccc6cda3 JA |
1199 | { |
1200 | va_list args; | |
ccc6cda3 | 1201 | |
d166f048 JA |
1202 | #if defined (PREFER_STDARG) |
1203 | va_start (args, format); | |
1204 | #else | |
ccc6cda3 | 1205 | va_start (args); |
d166f048 JA |
1206 | #endif |
1207 | ||
ccc6cda3 JA |
1208 | vfprintf (stdout, format, args); |
1209 | va_end (args); | |
1210 | } | |
1211 | ||
1212 | #else | |
1213 | ||
1214 | static void | |
1215 | xprintf (format, arg1, arg2, arg3, arg4, arg5) | |
f73dda09 | 1216 | const char *format; |
ccc6cda3 JA |
1217 | { |
1218 | printf (format, arg1, arg2, arg3, arg4, arg5); | |
1219 | } | |
1220 | ||
f73dda09 | 1221 | #endif /* !HAVE_VPRINTF */ |