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Commit | Line | Data |
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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 | |
8 | Software Foundation; either version 1, or (at your option) any later | |
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 | |
18 | Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
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 | ||
ccc6cda3 | 46 | #if !defined (PRINTF_DECLARED) |
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) |
ccc6cda3 | 54 | static void cprintf __P((char *, ...)); |
d166f048 JA |
55 | #else |
56 | static void cprintf (); | |
57 | #endif | |
ccc6cda3 JA |
58 | |
59 | static void newline (), indent (), the_printed_command_resize (); | |
726f6388 | 60 | static void semicolon (); |
ccc6cda3 | 61 | static void xprintf (); |
726f6388 JA |
62 | |
63 | static void make_command_string_internal (); | |
64 | static void command_print_word_list (); | |
65 | static void print_case_clauses (); | |
66 | static void print_redirection_list (); | |
67 | static void print_redirection (); | |
68 | ||
69 | static void print_for_command (); | |
70 | #if defined (SELECT_COMMAND) | |
71 | static void print_select_command (); | |
72 | #endif | |
73 | static void print_group_command (); | |
74 | static void print_case_command (); | |
75 | static void print_while_command (); | |
76 | static void print_until_command (); | |
77 | static void print_until_or_while (); | |
78 | static void print_if_command (); | |
79 | static void print_function_def (); | |
cce855bc JA |
80 | #if defined (DPAREN_ARITHMETIC) |
81 | static void print_arith_command (); | |
82 | #endif | |
83 | #if defined (COND_COMMAND) | |
84 | static void print_cond_node (); | |
85 | static void print_cond_command (); | |
86 | #endif | |
726f6388 | 87 | |
d166f048 JA |
88 | #define PRINTED_COMMAND_INITIAL_SIZE 64 |
89 | #define PRINTED_COMMAND_GROW_SIZE 128 | |
726f6388 JA |
90 | |
91 | char *the_printed_command = (char *)NULL; | |
92 | int the_printed_command_size = 0; | |
93 | int command_string_index = 0; | |
94 | ||
95 | /* Non-zero means the stuff being printed is inside of a function def. */ | |
ccc6cda3 JA |
96 | static int inside_function_def; |
97 | static int skip_this_indent; | |
d166f048 | 98 | static int was_heredoc; |
726f6388 JA |
99 | |
100 | /* The depth of the group commands that we are currently printing. This | |
101 | includes the group command that is a function body. */ | |
ccc6cda3 | 102 | static int group_command_nesting; |
726f6388 JA |
103 | |
104 | /* Print COMMAND (a command tree) on standard output. */ | |
105 | void | |
106 | print_command (command) | |
107 | COMMAND *command; | |
108 | { | |
109 | command_string_index = 0; | |
110 | printf ("%s", make_command_string (command)); | |
111 | } | |
112 | ||
113 | /* Make a string which is the printed representation of the command | |
114 | tree in COMMAND. We return this string. However, the string is | |
115 | not consed, so you have to do that yourself if you want it to | |
116 | remain around. */ | |
117 | char * | |
118 | make_command_string (command) | |
119 | COMMAND *command; | |
120 | { | |
d166f048 | 121 | command_string_index = was_heredoc = 0; |
726f6388 JA |
122 | make_command_string_internal (command); |
123 | return (the_printed_command); | |
124 | } | |
125 | ||
126 | /* The internal function. This is the real workhorse. */ | |
127 | static void | |
128 | make_command_string_internal (command) | |
129 | COMMAND *command; | |
130 | { | |
ccc6cda3 | 131 | if (command == 0) |
726f6388 JA |
132 | cprintf (""); |
133 | else | |
134 | { | |
135 | if (skip_this_indent) | |
136 | skip_this_indent--; | |
137 | else | |
138 | indent (indentation); | |
139 | ||
140 | if (command->flags & CMD_WANT_SUBSHELL) | |
141 | cprintf ("( "); | |
142 | ||
ccc6cda3 | 143 | if (command->flags & CMD_TIME_PIPELINE) |
d166f048 JA |
144 | { |
145 | cprintf ("time "); | |
146 | if (command->flags & CMD_TIME_POSIX) | |
147 | cprintf ("-p "); | |
148 | } | |
ccc6cda3 | 149 | |
726f6388 JA |
150 | if (command->flags & CMD_INVERT_RETURN) |
151 | cprintf ("! "); | |
152 | ||
153 | switch (command->type) | |
154 | { | |
155 | case cm_for: | |
156 | print_for_command (command->value.For); | |
157 | break; | |
158 | ||
159 | #if defined (SELECT_COMMAND) | |
160 | case cm_select: | |
161 | print_select_command (command->value.Select); | |
162 | break; | |
163 | #endif | |
164 | ||
165 | case cm_case: | |
166 | print_case_command (command->value.Case); | |
167 | break; | |
168 | ||
169 | case cm_while: | |
170 | print_while_command (command->value.While); | |
171 | break; | |
172 | ||
173 | case cm_until: | |
174 | print_until_command (command->value.While); | |
175 | break; | |
176 | ||
177 | case cm_if: | |
178 | print_if_command (command->value.If); | |
179 | break; | |
180 | ||
cce855bc JA |
181 | #if defined (DPAREN_ARITHMETIC) |
182 | case cm_arith: | |
183 | print_arith_command (command->value.Arith); | |
184 | break; | |
185 | #endif | |
186 | ||
187 | #if defined (COND_COMMAND) | |
188 | case cm_cond: | |
189 | print_cond_command (command->value.Cond); | |
190 | break; | |
191 | #endif | |
192 | ||
726f6388 JA |
193 | case cm_simple: |
194 | print_simple_command (command->value.Simple); | |
195 | break; | |
196 | ||
ccc6cda3 | 197 | case cm_connection: |
726f6388 JA |
198 | |
199 | skip_this_indent++; | |
200 | make_command_string_internal (command->value.Connection->first); | |
201 | ||
202 | switch (command->value.Connection->connector) | |
203 | { | |
204 | case '&': | |
205 | case '|': | |
206 | { | |
207 | char c = command->value.Connection->connector; | |
208 | cprintf (" %c", c); | |
209 | if (c != '&' || command->value.Connection->second) | |
210 | { | |
211 | cprintf (" "); | |
212 | skip_this_indent++; | |
213 | } | |
214 | } | |
215 | break; | |
216 | ||
217 | case AND_AND: | |
218 | cprintf (" && "); | |
219 | if (command->value.Connection->second) | |
220 | skip_this_indent++; | |
221 | break; | |
222 | ||
223 | case OR_OR: | |
224 | cprintf (" || "); | |
225 | if (command->value.Connection->second) | |
226 | skip_this_indent++; | |
227 | break; | |
ccc6cda3 | 228 | |
726f6388 | 229 | case ';': |
d166f048 JA |
230 | if (was_heredoc == 0) |
231 | cprintf (";"); | |
232 | else | |
233 | was_heredoc = 0; | |
726f6388 JA |
234 | |
235 | if (inside_function_def) | |
236 | cprintf ("\n"); | |
237 | else | |
238 | { | |
239 | cprintf (" "); | |
240 | if (command->value.Connection->second) | |
241 | skip_this_indent++; | |
242 | } | |
243 | break; | |
244 | ||
245 | default: | |
246 | cprintf ("print_command: bad connector `%d'", | |
247 | command->value.Connection->connector); | |
248 | break; | |
249 | } | |
250 | ||
251 | make_command_string_internal (command->value.Connection->second); | |
252 | break; | |
ccc6cda3 | 253 | |
726f6388 JA |
254 | case cm_function_def: |
255 | print_function_def (command->value.Function_def); | |
256 | break; | |
257 | ||
258 | case cm_group: | |
259 | print_group_command (command->value.Group); | |
260 | break; | |
261 | ||
262 | default: | |
b72432fd | 263 | command_error ("print_command", CMDERR_BADTYPE, command->type, 0); |
726f6388 JA |
264 | break; |
265 | } | |
266 | ||
267 | if (command->flags & CMD_WANT_SUBSHELL) | |
268 | cprintf (" )"); | |
269 | ||
270 | if (command->redirects) | |
b72432fd JA |
271 | { |
272 | cprintf (" "); | |
273 | print_redirection_list (command->redirects); | |
274 | } | |
726f6388 JA |
275 | } |
276 | } | |
277 | ||
278 | static void | |
279 | _print_word_list (list, separator, pfunc) | |
280 | WORD_LIST *list; | |
281 | char *separator; | |
282 | VFunction *pfunc; | |
283 | { | |
ccc6cda3 JA |
284 | WORD_LIST *w; |
285 | ||
286 | for (w = list; w; w = w->next) | |
287 | (*pfunc) ("%s%s", w->word->word, w->next ? separator : ""); | |
726f6388 JA |
288 | } |
289 | ||
ccc6cda3 JA |
290 | void |
291 | print_word_list (list, separator) | |
726f6388 JA |
292 | WORD_LIST *list; |
293 | char *separator; | |
294 | { | |
ccc6cda3 JA |
295 | _print_word_list (list, separator, xprintf); |
296 | } | |
297 | ||
298 | /* A function to print the words of a simple command when set -x is on. */ | |
299 | void | |
300 | xtrace_print_word_list (list) | |
301 | WORD_LIST *list; | |
302 | { | |
303 | WORD_LIST *w; | |
e8ce775d | 304 | char *t, *x; |
ccc6cda3 JA |
305 | |
306 | fprintf (stderr, "%s", indirection_level_string ()); | |
307 | for (w = list; w; w = w->next) | |
308 | { | |
309 | t = w->word->word; | |
310 | if (t == 0 || *t == '\0') | |
e8ce775d | 311 | fprintf (stderr, "''%s", w->next ? " " : ""); |
ccc6cda3 | 312 | else if (contains_shell_metas (t)) |
e8ce775d JA |
313 | { |
314 | x = single_quote (t); | |
315 | fprintf (stderr, "%s%s", x, w->next ? " " : ""); | |
316 | free (x); | |
317 | } | |
ccc6cda3 | 318 | else |
e8ce775d | 319 | fprintf (stderr, "%s%s", t, w->next ? " " : ""); |
ccc6cda3 JA |
320 | } |
321 | fprintf (stderr, "\n"); | |
726f6388 JA |
322 | } |
323 | ||
324 | static void | |
325 | command_print_word_list (list, separator) | |
326 | WORD_LIST *list; | |
327 | char *separator; | |
328 | { | |
329 | _print_word_list (list, separator, cprintf); | |
330 | } | |
331 | ||
332 | static void | |
333 | print_for_command (for_command) | |
334 | FOR_COM *for_command; | |
335 | { | |
336 | cprintf ("for %s in ", for_command->name->word); | |
337 | command_print_word_list (for_command->map_list, " "); | |
338 | cprintf (";"); | |
339 | newline ("do\n"); | |
340 | indentation += indentation_amount; | |
341 | make_command_string_internal (for_command->action); | |
342 | semicolon (); | |
343 | indentation -= indentation_amount; | |
344 | newline ("done"); | |
345 | } | |
346 | ||
347 | #if defined (SELECT_COMMAND) | |
348 | static void | |
349 | print_select_command (select_command) | |
350 | SELECT_COM *select_command; | |
351 | { | |
352 | cprintf ("select %s in ", select_command->name->word); | |
353 | command_print_word_list (select_command->map_list, " "); | |
354 | cprintf (";"); | |
355 | newline ("do\n"); | |
356 | indentation += indentation_amount; | |
357 | make_command_string_internal (select_command->action); | |
358 | semicolon (); | |
359 | indentation -= indentation_amount; | |
360 | newline ("done"); | |
361 | } | |
362 | #endif /* SELECT_COMMAND */ | |
363 | ||
364 | static void | |
365 | print_group_command (group_command) | |
366 | GROUP_COM *group_command; | |
367 | { | |
368 | group_command_nesting++; | |
369 | cprintf ("{ "); | |
370 | ||
ccc6cda3 | 371 | if (inside_function_def == 0) |
726f6388 JA |
372 | skip_this_indent++; |
373 | else | |
374 | { | |
375 | /* This is a group command { ... } inside of a function | |
ccc6cda3 | 376 | definition, and should be printed as a multiline group |
726f6388 JA |
377 | command, using the current indentation. */ |
378 | cprintf ("\n"); | |
379 | indentation += indentation_amount; | |
380 | } | |
381 | ||
382 | make_command_string_internal (group_command->command); | |
383 | ||
ccc6cda3 | 384 | if (inside_function_def) |
726f6388 | 385 | { |
ccc6cda3 | 386 | cprintf ("\n"); |
726f6388 JA |
387 | indentation -= indentation_amount; |
388 | indent (indentation); | |
726f6388 | 389 | } |
ccc6cda3 JA |
390 | else |
391 | { | |
392 | semicolon (); | |
393 | cprintf (" "); | |
394 | } | |
395 | ||
726f6388 | 396 | cprintf ("}"); |
ccc6cda3 | 397 | |
726f6388 JA |
398 | group_command_nesting--; |
399 | } | |
400 | ||
401 | static void | |
402 | print_case_command (case_command) | |
403 | CASE_COM *case_command; | |
404 | { | |
405 | cprintf ("case %s in ", case_command->word->word); | |
406 | if (case_command->clauses) | |
407 | print_case_clauses (case_command->clauses); | |
408 | newline ("esac"); | |
409 | } | |
410 | ||
411 | static void | |
412 | print_case_clauses (clauses) | |
413 | PATTERN_LIST *clauses; | |
414 | { | |
415 | indentation += indentation_amount; | |
416 | while (clauses) | |
417 | { | |
418 | newline (""); | |
419 | command_print_word_list (clauses->patterns, " | "); | |
420 | cprintf (")\n"); | |
421 | indentation += indentation_amount; | |
422 | make_command_string_internal (clauses->action); | |
423 | indentation -= indentation_amount; | |
424 | newline (";;"); | |
425 | clauses = clauses->next; | |
426 | } | |
427 | indentation -= indentation_amount; | |
428 | } | |
429 | ||
430 | static void | |
431 | print_while_command (while_command) | |
432 | WHILE_COM *while_command; | |
433 | { | |
434 | print_until_or_while (while_command, "while"); | |
435 | } | |
436 | ||
437 | static void | |
438 | print_until_command (while_command) | |
439 | WHILE_COM *while_command; | |
440 | { | |
441 | print_until_or_while (while_command, "until"); | |
442 | } | |
443 | ||
444 | static void | |
445 | print_until_or_while (while_command, which) | |
446 | WHILE_COM *while_command; | |
447 | char *which; | |
448 | { | |
449 | cprintf ("%s ", which); | |
450 | skip_this_indent++; | |
451 | make_command_string_internal (while_command->test); | |
452 | semicolon (); | |
453 | cprintf (" do\n"); /* was newline ("do\n"); */ | |
454 | indentation += indentation_amount; | |
455 | make_command_string_internal (while_command->action); | |
456 | indentation -= indentation_amount; | |
457 | semicolon (); | |
458 | newline ("done"); | |
459 | } | |
460 | ||
461 | static void | |
462 | print_if_command (if_command) | |
463 | IF_COM *if_command; | |
464 | { | |
465 | cprintf ("if "); | |
466 | skip_this_indent++; | |
467 | make_command_string_internal (if_command->test); | |
468 | semicolon (); | |
469 | cprintf (" then\n"); | |
470 | indentation += indentation_amount; | |
471 | make_command_string_internal (if_command->true_case); | |
472 | indentation -= indentation_amount; | |
473 | ||
474 | if (if_command->false_case) | |
475 | { | |
476 | semicolon (); | |
477 | newline ("else\n"); | |
478 | indentation += indentation_amount; | |
479 | make_command_string_internal (if_command->false_case); | |
480 | indentation -= indentation_amount; | |
481 | } | |
482 | semicolon (); | |
483 | newline ("fi"); | |
484 | } | |
485 | ||
cce855bc JA |
486 | #if defined (DPAREN_ARITHMETIC) |
487 | static void | |
488 | print_arith_command (arith_command) | |
489 | ARITH_COM *arith_command; | |
490 | { | |
491 | cprintf ("(( "); | |
492 | command_print_word_list (arith_command->exp, " "); | |
493 | cprintf (" ))"); | |
494 | } | |
495 | ||
496 | #if defined (COND_COMMAND) | |
497 | static void | |
498 | print_cond_node (cond) | |
499 | COND_COM *cond; | |
500 | { | |
501 | if (cond->flags & CMD_INVERT_RETURN) | |
502 | cprintf ("! "); | |
503 | ||
504 | if (cond->type == COND_EXPR) | |
505 | { | |
506 | cprintf ("( "); | |
507 | print_cond_node (cond->left); | |
508 | cprintf (" )"); | |
509 | } | |
510 | else if (cond->type == COND_AND) | |
511 | { | |
512 | print_cond_node (cond->left); | |
513 | cprintf (" && "); | |
514 | print_cond_node (cond->right); | |
515 | } | |
516 | else if (cond->type == COND_OR) | |
517 | { | |
518 | print_cond_node (cond->left); | |
519 | cprintf (" || "); | |
520 | print_cond_node (cond->right); | |
521 | } | |
522 | else if (cond->type == COND_UNARY) | |
523 | { | |
b72432fd | 524 | cprintf ("%s", cond->op->word); |
cce855bc JA |
525 | cprintf (" "); |
526 | print_cond_node (cond->left); | |
527 | } | |
528 | else if (cond->type == COND_BINARY) | |
529 | { | |
530 | print_cond_node (cond->left); | |
531 | cprintf (" "); | |
b72432fd | 532 | cprintf ("%s", cond->op->word); |
cce855bc JA |
533 | cprintf (" "); |
534 | print_cond_node (cond->right); | |
535 | } | |
536 | else if (cond->type == COND_TERM) | |
537 | { | |
b72432fd | 538 | cprintf ("%s", cond->op->word); /* need to add quoting here */ |
cce855bc JA |
539 | } |
540 | } | |
541 | ||
542 | static void | |
543 | print_cond_command (cond) | |
544 | COND_COM *cond; | |
545 | { | |
546 | cprintf ("[[ "); | |
547 | print_cond_node (cond); | |
548 | cprintf (" ]]"); | |
549 | } | |
550 | ||
551 | void | |
552 | debug_print_cond_command (cond) | |
553 | COND_COM *cond; | |
554 | { | |
555 | fprintf (stderr, "DEBUG: "); | |
556 | command_string_index = 0; | |
557 | print_cond_command (cond); | |
558 | fprintf (stderr, "%s\n", the_printed_command); | |
559 | } | |
560 | ||
561 | void | |
562 | xtrace_print_cond_term (type, invert, op, arg1, arg2) | |
563 | int type, invert; | |
564 | WORD_DESC *op; | |
565 | char *arg1, *arg2; | |
566 | { | |
567 | command_string_index = 0; | |
568 | fprintf (stderr, "%s", indirection_level_string ()); | |
569 | fprintf (stderr, "[[ "); | |
570 | if (invert) | |
571 | fprintf (stderr, "! "); | |
572 | ||
573 | if (type == COND_UNARY) | |
574 | { | |
575 | fprintf (stderr, "%s ", op->word); | |
576 | fprintf (stderr, "%s", (arg1 && *arg1) ? arg1 : "''"); | |
577 | } | |
578 | else if (type == COND_BINARY) | |
579 | { | |
580 | fprintf (stderr, "%s", (arg1 && *arg1) ? arg1 : "''"); | |
581 | fprintf (stderr, " %s ", op->word); | |
582 | fprintf (stderr, "%s", (arg2 && *arg2) ? arg2 : "''"); | |
583 | } | |
584 | ||
585 | fprintf (stderr, " ]]\n"); | |
586 | } | |
587 | #endif /* COND_COMMAND */ | |
588 | ||
589 | /* A function to print the words of an arithmetic command when set -x is on. */ | |
590 | void | |
591 | xtrace_print_arith_cmd (list) | |
592 | WORD_LIST *list; | |
593 | { | |
594 | WORD_LIST *w; | |
595 | ||
596 | fprintf (stderr, "%s", indirection_level_string ()); | |
597 | fprintf (stderr, "(( "); | |
598 | for (w = list; w; w = w->next) | |
599 | fprintf (stderr, "%s%s", w->word->word, w->next ? " " : ""); | |
600 | fprintf (stderr, " ))\n"); | |
601 | } | |
602 | #endif | |
603 | ||
726f6388 JA |
604 | void |
605 | print_simple_command (simple_command) | |
606 | SIMPLE_COM *simple_command; | |
607 | { | |
608 | command_print_word_list (simple_command->words, " "); | |
609 | ||
610 | if (simple_command->redirects) | |
611 | { | |
612 | cprintf (" "); | |
613 | print_redirection_list (simple_command->redirects); | |
614 | } | |
615 | } | |
616 | ||
617 | static void | |
618 | print_redirection_list (redirects) | |
619 | REDIRECT *redirects; | |
620 | { | |
d166f048 JA |
621 | REDIRECT *heredocs, *hdtail, *newredir; |
622 | ||
623 | heredocs = (REDIRECT *)NULL; | |
624 | hdtail = heredocs; | |
625 | ||
626 | was_heredoc = 0; | |
726f6388 JA |
627 | while (redirects) |
628 | { | |
d166f048 JA |
629 | /* Defer printing the here documents until we've printed the |
630 | rest of the redirections. */ | |
631 | if (redirects->instruction == r_reading_until || redirects->instruction == r_deblank_reading_until) | |
632 | { | |
633 | newredir = copy_redirect (redirects); | |
634 | newredir->next = (REDIRECT *)NULL; | |
635 | if (heredocs) | |
636 | { | |
637 | hdtail->next = newredir; | |
638 | hdtail = newredir; | |
639 | } | |
640 | else | |
641 | hdtail = heredocs = newredir; | |
642 | } | |
643 | else | |
644 | print_redirection (redirects); | |
645 | ||
726f6388 JA |
646 | redirects = redirects->next; |
647 | if (redirects) | |
648 | cprintf (" "); | |
649 | } | |
d166f048 JA |
650 | |
651 | /* Now that we've printed all the other redirections (on one line), | |
652 | print the here documents. */ | |
653 | if (heredocs) | |
654 | { | |
655 | cprintf (" "); | |
656 | for (hdtail = heredocs; hdtail; hdtail = hdtail->next) | |
657 | { | |
658 | print_redirection (hdtail); | |
659 | cprintf ("\n"); | |
660 | } | |
661 | dispose_redirects (heredocs); | |
662 | was_heredoc = 1; | |
663 | } | |
726f6388 JA |
664 | } |
665 | ||
666 | static void | |
667 | print_redirection (redirect) | |
668 | REDIRECT *redirect; | |
669 | { | |
d166f048 JA |
670 | int kill_leading, redirector, redir_fd; |
671 | WORD_DESC *redirectee; | |
672 | ||
673 | kill_leading = 0; | |
674 | redirectee = redirect->redirectee.filename; | |
675 | redirector = redirect->redirector; | |
676 | redir_fd = redirect->redirectee.dest; | |
726f6388 JA |
677 | |
678 | switch (redirect->instruction) | |
679 | { | |
680 | case r_output_direction: | |
681 | if (redirector != 1) | |
682 | cprintf ("%d", redirector); | |
683 | cprintf (">%s", redirectee->word); | |
684 | break; | |
685 | ||
686 | case r_input_direction: | |
687 | if (redirector != 0) | |
688 | cprintf ("%d", redirector); | |
689 | cprintf ("<%s", redirectee->word); | |
690 | break; | |
691 | ||
692 | case r_inputa_direction: /* Redirection created by the shell. */ | |
693 | cprintf ("&"); | |
694 | break; | |
695 | ||
696 | case r_appending_to: | |
697 | if (redirector != 1) | |
698 | cprintf ("%d", redirector); | |
699 | cprintf (">>%s", redirectee->word); | |
700 | break; | |
701 | ||
702 | case r_deblank_reading_until: | |
703 | kill_leading++; | |
704 | /* ... */ | |
705 | case r_reading_until: | |
706 | if (redirector != 0) | |
707 | cprintf ("%d", redirector); | |
708 | /* If the here document delimiter is quoted, single-quote it. */ | |
ccc6cda3 | 709 | if (redirect->redirectee.filename->flags & W_QUOTED) |
726f6388 JA |
710 | { |
711 | char *x; | |
712 | x = single_quote (redirect->here_doc_eof); | |
713 | cprintf ("<<%s%s\n", kill_leading? "-" : "", x); | |
714 | free (x); | |
715 | } | |
716 | else | |
717 | cprintf ("<<%s%s\n", kill_leading? "-" : "", redirect->here_doc_eof); | |
718 | cprintf ("%s%s", | |
719 | redirect->redirectee.filename->word, redirect->here_doc_eof); | |
720 | break; | |
721 | ||
722 | case r_duplicating_input: | |
723 | cprintf ("%d<&%d", redirector, redir_fd); | |
724 | break; | |
725 | ||
726 | case r_duplicating_output: | |
727 | cprintf ("%d>&%d", redirector, redir_fd); | |
728 | break; | |
729 | ||
730 | case r_duplicating_input_word: | |
731 | cprintf ("%d<&%s", redirector, redirectee->word); | |
732 | break; | |
733 | ||
734 | case r_duplicating_output_word: | |
735 | cprintf ("%d>&%s", redirector, redirectee->word); | |
736 | break; | |
737 | ||
738 | case r_close_this: | |
739 | cprintf ("%d>&-", redirector); | |
740 | break; | |
741 | ||
742 | case r_err_and_out: | |
743 | cprintf (">&%s", redirectee->word); | |
744 | break; | |
745 | ||
746 | case r_input_output: | |
747 | if (redirector != 1) | |
748 | cprintf ("%d", redirector); | |
749 | cprintf ("<>%s", redirectee->word); | |
750 | break; | |
751 | ||
752 | case r_output_force: | |
753 | if (redirector != 1) | |
754 | cprintf ("%d", redirector); | |
755 | cprintf (">|%s", redirectee->word); | |
756 | break; | |
757 | } | |
758 | } | |
759 | ||
760 | static void | |
761 | reset_locals () | |
762 | { | |
763 | inside_function_def = 0; | |
764 | indentation = 0; | |
765 | } | |
766 | ||
767 | static void | |
768 | print_function_def (func) | |
769 | FUNCTION_DEF *func; | |
770 | { | |
771 | cprintf ("function %s () \n", func->name->word); | |
772 | add_unwind_protect (reset_locals, 0); | |
773 | ||
774 | indent (indentation); | |
775 | cprintf ("{ \n"); | |
776 | ||
777 | inside_function_def++; | |
778 | indentation += indentation_amount; | |
779 | ||
ccc6cda3 JA |
780 | make_command_string_internal (func->command->type == cm_group |
781 | ? func->command->value.Group->command | |
782 | : func->command); | |
783 | ||
726f6388 JA |
784 | remove_unwind_protect (); |
785 | indentation -= indentation_amount; | |
786 | inside_function_def--; | |
787 | ||
788 | newline ("}"); | |
789 | } | |
790 | ||
791 | /* Return the string representation of the named function. | |
792 | NAME is the name of the function. | |
793 | COMMAND is the function body. It should be a GROUP_COM. | |
794 | MULTI_LINE is non-zero to pretty-print, or zero for all on one line. | |
795 | */ | |
796 | char * | |
797 | named_function_string (name, command, multi_line) | |
798 | char *name; | |
799 | COMMAND *command; | |
800 | int multi_line; | |
801 | { | |
802 | char *result; | |
ccc6cda3 | 803 | int old_indent, old_amount; |
726f6388 | 804 | |
ccc6cda3 JA |
805 | old_indent = indentation; |
806 | old_amount = indentation_amount; | |
d166f048 | 807 | command_string_index = was_heredoc = 0; |
726f6388 JA |
808 | |
809 | if (name && *name) | |
810 | cprintf ("%s ", name); | |
811 | ||
812 | cprintf ("() "); | |
813 | ||
ccc6cda3 | 814 | if (multi_line == 0) |
726f6388 JA |
815 | { |
816 | indentation = 1; | |
817 | indentation_amount = 0; | |
818 | } | |
819 | else | |
820 | { | |
821 | cprintf ("\n"); | |
822 | indentation += indentation_amount; | |
823 | } | |
824 | ||
825 | inside_function_def++; | |
826 | ||
ccc6cda3 | 827 | cprintf (multi_line ? "{ \n" : "{ "); |
726f6388 | 828 | |
ccc6cda3 JA |
829 | make_command_string_internal (command->type == cm_group |
830 | ? command->value.Group->command | |
831 | : command); | |
726f6388 JA |
832 | |
833 | indentation = old_indent; | |
834 | indentation_amount = old_amount; | |
835 | inside_function_def--; | |
836 | ||
837 | newline ("}"); | |
838 | ||
839 | result = the_printed_command; | |
840 | ||
841 | if (!multi_line) | |
842 | { | |
843 | #if 0 | |
844 | register int i; | |
845 | for (i = 0; result[i]; i++) | |
846 | if (result[i] == '\n') | |
847 | { | |
848 | strcpy (result + i, result + i + 1); | |
849 | --i; | |
850 | } | |
851 | #else | |
852 | if (result[2] == '\n') /* XXX -- experimental */ | |
853 | strcpy (result + 2, result + 3); | |
854 | #endif | |
855 | } | |
856 | ||
857 | return (result); | |
858 | } | |
859 | ||
860 | static void | |
861 | newline (string) | |
862 | char *string; | |
863 | { | |
864 | cprintf ("\n"); | |
865 | indent (indentation); | |
866 | if (string && *string) | |
867 | cprintf ("%s", string); | |
868 | } | |
869 | ||
ccc6cda3 JA |
870 | static char *indentation_string; |
871 | static int indentation_size; | |
872 | ||
726f6388 JA |
873 | static void |
874 | indent (amount) | |
875 | int amount; | |
876 | { | |
ccc6cda3 JA |
877 | register int i; |
878 | ||
879 | RESIZE_MALLOCED_BUFFER (indentation_string, 0, amount, indentation_size, 16); | |
880 | ||
881 | for (i = 0; amount > 0; amount--) | |
882 | indentation_string[i++] = ' '; | |
883 | indentation_string[i] = '\0'; | |
884 | cprintf (indentation_string); | |
726f6388 JA |
885 | } |
886 | ||
887 | static void | |
888 | semicolon () | |
889 | { | |
890 | if (command_string_index > 0 && the_printed_command[command_string_index - 1] == '&') | |
891 | return; | |
892 | cprintf (";"); | |
893 | } | |
894 | ||
ccc6cda3 | 895 | #if !defined (USE_VARARGS) |
726f6388 JA |
896 | /* How to make the string. */ |
897 | static void | |
898 | cprintf (format, arg1, arg2) | |
899 | char *format, *arg1, *arg2; | |
900 | { | |
901 | register char *s; | |
b72432fd | 902 | char char_arg[2], *argp, *args[2], intbuf[32]; |
726f6388 JA |
903 | int arg_len, c, arg_index; |
904 | ||
905 | args[arg_index = 0] = arg1; | |
906 | args[1] = arg2; | |
907 | ||
908 | arg_len = strlen (format); | |
909 | the_printed_command_resize (arg_len + 1); | |
910 | ||
911 | char_arg[1] = '\0'; | |
912 | s = format; | |
913 | while (s && *s) | |
914 | { | |
915 | int free_argp = 0; | |
916 | c = *s++; | |
917 | if (c != '%' || !*s) | |
918 | { | |
919 | argp = s; | |
920 | arg_len = 1; | |
921 | } | |
922 | else | |
923 | { | |
924 | c = *s++; | |
925 | switch (c) | |
926 | { | |
927 | case '%': | |
928 | char_arg[0] = c; | |
929 | argp = char_arg; | |
930 | arg_len = 1; | |
931 | break; | |
932 | ||
933 | case 's': | |
934 | argp = (char *)args[arg_index++]; | |
935 | arg_len = strlen (argp); | |
936 | break; | |
937 | ||
938 | case 'd': | |
b72432fd | 939 | argp = inttostr (pointer_to_int (args[arg_index]), intbuf, sizeof (intbuf)); |
726f6388 JA |
940 | arg_index++; |
941 | arg_len = strlen (argp); | |
726f6388 JA |
942 | break; |
943 | ||
944 | case 'c': | |
945 | char_arg[0] = pointer_to_int (args[arg_index]); | |
946 | arg_index++; | |
947 | argp = char_arg; | |
948 | arg_len = 1; | |
949 | break; | |
950 | ||
951 | default: | |
952 | programming_error ("cprintf: bad `%%' argument (%c)", c); | |
953 | } | |
954 | } | |
955 | if (argp) | |
956 | { | |
957 | the_printed_command_resize (arg_len + 1); | |
958 | FASTCOPY (argp, the_printed_command + command_string_index, arg_len); | |
959 | command_string_index += arg_len; | |
960 | if (free_argp) | |
961 | free (argp); | |
962 | } | |
963 | } | |
964 | ||
965 | the_printed_command[command_string_index] = '\0'; | |
966 | } | |
967 | ||
968 | #else /* We have support for varargs. */ | |
969 | ||
970 | /* How to make the string. */ | |
971 | static void | |
ccc6cda3 JA |
972 | #if defined (PREFER_STDARG) |
973 | cprintf (char *control, ...) | |
974 | #else | |
975 | cprintf (control, va_alist) | |
976 | char *control; | |
726f6388 | 977 | va_dcl |
ccc6cda3 | 978 | #endif |
726f6388 JA |
979 | { |
980 | register char *s; | |
b72432fd | 981 | char char_arg[2], *argp, intbuf[32]; |
726f6388 JA |
982 | int digit_arg, arg_len, c; |
983 | va_list args; | |
984 | ||
ccc6cda3 JA |
985 | #if defined (PREFER_STDARG) |
986 | va_start (args, control); | |
987 | #else | |
726f6388 | 988 | va_start (args); |
ccc6cda3 | 989 | #endif |
726f6388 JA |
990 | |
991 | arg_len = strlen (control); | |
992 | the_printed_command_resize (arg_len + 1); | |
993 | ||
994 | char_arg[1] = '\0'; | |
995 | s = control; | |
996 | while (s && *s) | |
997 | { | |
ccc6cda3 JA |
998 | int free_argp; |
999 | free_argp = 0; | |
726f6388 | 1000 | c = *s++; |
ccc6cda3 | 1001 | argp = (char *)NULL; |
726f6388 JA |
1002 | if (c != '%' || !*s) |
1003 | { | |
1004 | argp = s - 1; | |
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 = va_arg (args, char *); | |
1020 | arg_len = strlen (argp); | |
1021 | break; | |
1022 | ||
1023 | case 'd': | |
1024 | digit_arg = va_arg (args, int); | |
b72432fd | 1025 | argp = inttostr (digit_arg, intbuf, sizeof (intbuf)); |
726f6388 | 1026 | arg_len = strlen (argp); |
726f6388 JA |
1027 | break; |
1028 | ||
1029 | case 'c': | |
1030 | char_arg[0] = va_arg (args, int); | |
1031 | argp = char_arg; | |
1032 | arg_len = 1; | |
1033 | break; | |
1034 | ||
1035 | default: | |
1036 | programming_error ("cprintf: bad `%%' argument (%c)", c); | |
ccc6cda3 | 1037 | /*NOTREACHED*/ |
726f6388 JA |
1038 | } |
1039 | } | |
1040 | ||
ccc6cda3 | 1041 | if (argp && arg_len) |
726f6388 JA |
1042 | { |
1043 | the_printed_command_resize (arg_len + 1); | |
1044 | FASTCOPY (argp, the_printed_command + command_string_index, arg_len); | |
1045 | command_string_index += arg_len; | |
1046 | if (free_argp) | |
1047 | free (argp); | |
1048 | } | |
1049 | } | |
1050 | ||
1051 | the_printed_command[command_string_index] = '\0'; | |
1052 | } | |
1053 | #endif /* HAVE_VARARGS_H */ | |
1054 | ||
1055 | /* Ensure that there is enough space to stuff LENGTH characters into | |
1056 | THE_PRINTED_COMMAND. */ | |
1057 | static void | |
1058 | the_printed_command_resize (length) | |
1059 | int length; | |
1060 | { | |
d166f048 | 1061 | if (the_printed_command == 0) |
726f6388 | 1062 | { |
d166f048 | 1063 | the_printed_command_size = (length + PRINTED_COMMAND_INITIAL_SIZE - 1) & ~(PRINTED_COMMAND_INITIAL_SIZE - 1); |
726f6388 JA |
1064 | the_printed_command = xmalloc (the_printed_command_size); |
1065 | command_string_index = 0; | |
1066 | } | |
1067 | else if ((command_string_index + length) >= the_printed_command_size) | |
1068 | { | |
1069 | int new; | |
1070 | new = command_string_index + length + 1; | |
d166f048 JA |
1071 | #if 1 |
1072 | /* Round up to the next multiple of PRINTED_COMMAND_GROW_SIZE. */ | |
1073 | new = (new + PRINTED_COMMAND_GROW_SIZE - 1) & ~(PRINTED_COMMAND_GROW_SIZE - 1); | |
1074 | #else | |
726f6388 JA |
1075 | new = new + 2 * PRINTED_COMMAND_GROW_SIZE - 1; |
1076 | new -= new % PRINTED_COMMAND_GROW_SIZE; | |
d166f048 | 1077 | #endif |
726f6388 JA |
1078 | the_printed_command_size = new; |
1079 | the_printed_command = xrealloc (the_printed_command, the_printed_command_size); | |
1080 | } | |
1081 | } | |
ccc6cda3 JA |
1082 | |
1083 | #if defined (HAVE_VFPRINTF) | |
1084 | ||
1085 | static void | |
d166f048 JA |
1086 | #if defined (PREFER_STDARG) |
1087 | xprintf (const char *format, ...) | |
1088 | #else | |
1089 | xprintf (format, va_alist) | |
1090 | const char *format; | |
ccc6cda3 | 1091 | va_dcl |
d166f048 | 1092 | #endif |
ccc6cda3 JA |
1093 | { |
1094 | va_list args; | |
ccc6cda3 | 1095 | |
d166f048 JA |
1096 | #if defined (PREFER_STDARG) |
1097 | va_start (args, format); | |
1098 | #else | |
ccc6cda3 | 1099 | va_start (args); |
d166f048 JA |
1100 | #endif |
1101 | ||
ccc6cda3 JA |
1102 | vfprintf (stdout, format, args); |
1103 | va_end (args); | |
1104 | } | |
1105 | ||
1106 | #else | |
1107 | ||
1108 | static void | |
1109 | xprintf (format, arg1, arg2, arg3, arg4, arg5) | |
1110 | char *format; | |
1111 | { | |
1112 | printf (format, arg1, arg2, arg3, arg4, arg5); | |
1113 | } | |
1114 | ||
1115 | #endif /* !HAVE_VFPRINTF */ |