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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 JA |
24 | #if defined (HAVE_UNISTD_H) |
25 | # include <unistd.h> | |
26 | #endif | |
27 | ||
28 | #if defined (PREFER_STDARG) | |
29 | # include <stdarg.h> | |
30 | #else | |
31 | # if defined (PREFER_VARARGS) | |
32 | # include <varargs.h> | |
33 | # endif | |
726f6388 JA |
34 | #endif |
35 | ||
ccc6cda3 | 36 | #include "bashansi.h" |
726f6388 JA |
37 | |
38 | #include "shell.h" | |
39 | #include "y.tab.h" | |
40 | #include "stdc.h" | |
41 | #include "builtins/common.h" | |
42 | ||
ccc6cda3 | 43 | #if !defined (PRINTF_DECLARED) |
726f6388 JA |
44 | extern int printf __P((const char *, ...)); /* Yuck. Double yuck. */ |
45 | #endif | |
46 | ||
ccc6cda3 | 47 | static int indentation; |
726f6388 JA |
48 | static int indentation_amount = 4; |
49 | ||
ccc6cda3 JA |
50 | static void cprintf __P((char *, ...)); |
51 | ||
52 | static void newline (), indent (), the_printed_command_resize (); | |
726f6388 | 53 | static void semicolon (); |
ccc6cda3 | 54 | static void xprintf (); |
726f6388 JA |
55 | |
56 | static void make_command_string_internal (); | |
57 | static void command_print_word_list (); | |
58 | static void print_case_clauses (); | |
59 | static void print_redirection_list (); | |
60 | static void print_redirection (); | |
61 | ||
62 | static void print_for_command (); | |
63 | #if defined (SELECT_COMMAND) | |
64 | static void print_select_command (); | |
65 | #endif | |
66 | static void print_group_command (); | |
67 | static void print_case_command (); | |
68 | static void print_while_command (); | |
69 | static void print_until_command (); | |
70 | static void print_until_or_while (); | |
71 | static void print_if_command (); | |
72 | static void print_function_def (); | |
73 | ||
74 | #define PRINTED_COMMAND_GROW_SIZE 1024 | |
75 | ||
76 | char *the_printed_command = (char *)NULL; | |
77 | int the_printed_command_size = 0; | |
78 | int command_string_index = 0; | |
79 | ||
80 | /* Non-zero means the stuff being printed is inside of a function def. */ | |
ccc6cda3 JA |
81 | static int inside_function_def; |
82 | static int skip_this_indent; | |
726f6388 JA |
83 | |
84 | /* The depth of the group commands that we are currently printing. This | |
85 | includes the group command that is a function body. */ | |
ccc6cda3 | 86 | static int group_command_nesting; |
726f6388 JA |
87 | |
88 | /* Print COMMAND (a command tree) on standard output. */ | |
89 | void | |
90 | print_command (command) | |
91 | COMMAND *command; | |
92 | { | |
93 | command_string_index = 0; | |
94 | printf ("%s", make_command_string (command)); | |
95 | } | |
96 | ||
97 | /* Make a string which is the printed representation of the command | |
98 | tree in COMMAND. We return this string. However, the string is | |
99 | not consed, so you have to do that yourself if you want it to | |
100 | remain around. */ | |
101 | char * | |
102 | make_command_string (command) | |
103 | COMMAND *command; | |
104 | { | |
105 | command_string_index = 0; | |
106 | make_command_string_internal (command); | |
107 | return (the_printed_command); | |
108 | } | |
109 | ||
110 | /* The internal function. This is the real workhorse. */ | |
111 | static void | |
112 | make_command_string_internal (command) | |
113 | COMMAND *command; | |
114 | { | |
ccc6cda3 | 115 | if (command == 0) |
726f6388 JA |
116 | cprintf (""); |
117 | else | |
118 | { | |
119 | if (skip_this_indent) | |
120 | skip_this_indent--; | |
121 | else | |
122 | indent (indentation); | |
123 | ||
124 | if (command->flags & CMD_WANT_SUBSHELL) | |
125 | cprintf ("( "); | |
126 | ||
ccc6cda3 JA |
127 | if (command->flags & CMD_TIME_PIPELINE) |
128 | cprintf ("time "); | |
129 | ||
726f6388 JA |
130 | if (command->flags & CMD_INVERT_RETURN) |
131 | cprintf ("! "); | |
132 | ||
133 | switch (command->type) | |
134 | { | |
135 | case cm_for: | |
136 | print_for_command (command->value.For); | |
137 | break; | |
138 | ||
139 | #if defined (SELECT_COMMAND) | |
140 | case cm_select: | |
141 | print_select_command (command->value.Select); | |
142 | break; | |
143 | #endif | |
144 | ||
145 | case cm_case: | |
146 | print_case_command (command->value.Case); | |
147 | break; | |
148 | ||
149 | case cm_while: | |
150 | print_while_command (command->value.While); | |
151 | break; | |
152 | ||
153 | case cm_until: | |
154 | print_until_command (command->value.While); | |
155 | break; | |
156 | ||
157 | case cm_if: | |
158 | print_if_command (command->value.If); | |
159 | break; | |
160 | ||
161 | case cm_simple: | |
162 | print_simple_command (command->value.Simple); | |
163 | break; | |
164 | ||
ccc6cda3 | 165 | case cm_connection: |
726f6388 JA |
166 | |
167 | skip_this_indent++; | |
168 | make_command_string_internal (command->value.Connection->first); | |
169 | ||
170 | switch (command->value.Connection->connector) | |
171 | { | |
172 | case '&': | |
173 | case '|': | |
174 | { | |
175 | char c = command->value.Connection->connector; | |
176 | cprintf (" %c", c); | |
177 | if (c != '&' || command->value.Connection->second) | |
178 | { | |
179 | cprintf (" "); | |
180 | skip_this_indent++; | |
181 | } | |
182 | } | |
183 | break; | |
184 | ||
185 | case AND_AND: | |
186 | cprintf (" && "); | |
187 | if (command->value.Connection->second) | |
188 | skip_this_indent++; | |
189 | break; | |
190 | ||
191 | case OR_OR: | |
192 | cprintf (" || "); | |
193 | if (command->value.Connection->second) | |
194 | skip_this_indent++; | |
195 | break; | |
ccc6cda3 | 196 | |
726f6388 JA |
197 | case ';': |
198 | cprintf (";"); | |
199 | ||
200 | if (inside_function_def) | |
201 | cprintf ("\n"); | |
202 | else | |
203 | { | |
204 | cprintf (" "); | |
205 | if (command->value.Connection->second) | |
206 | skip_this_indent++; | |
207 | } | |
208 | break; | |
209 | ||
210 | default: | |
211 | cprintf ("print_command: bad connector `%d'", | |
212 | command->value.Connection->connector); | |
213 | break; | |
214 | } | |
215 | ||
216 | make_command_string_internal (command->value.Connection->second); | |
217 | break; | |
ccc6cda3 | 218 | |
726f6388 JA |
219 | case cm_function_def: |
220 | print_function_def (command->value.Function_def); | |
221 | break; | |
222 | ||
223 | case cm_group: | |
224 | print_group_command (command->value.Group); | |
225 | break; | |
226 | ||
227 | default: | |
228 | programming_error ("print_command: bad command type `%d'", command->type); | |
229 | break; | |
230 | } | |
231 | ||
232 | if (command->flags & CMD_WANT_SUBSHELL) | |
233 | cprintf (" )"); | |
234 | ||
235 | if (command->redirects) | |
236 | print_redirection_list (command->redirects); | |
237 | } | |
238 | } | |
239 | ||
240 | static void | |
241 | _print_word_list (list, separator, pfunc) | |
242 | WORD_LIST *list; | |
243 | char *separator; | |
244 | VFunction *pfunc; | |
245 | { | |
ccc6cda3 JA |
246 | WORD_LIST *w; |
247 | ||
248 | for (w = list; w; w = w->next) | |
249 | (*pfunc) ("%s%s", w->word->word, w->next ? separator : ""); | |
726f6388 JA |
250 | } |
251 | ||
ccc6cda3 JA |
252 | void |
253 | print_word_list (list, separator) | |
726f6388 JA |
254 | WORD_LIST *list; |
255 | char *separator; | |
256 | { | |
ccc6cda3 JA |
257 | _print_word_list (list, separator, xprintf); |
258 | } | |
259 | ||
260 | /* A function to print the words of a simple command when set -x is on. */ | |
261 | void | |
262 | xtrace_print_word_list (list) | |
263 | WORD_LIST *list; | |
264 | { | |
265 | WORD_LIST *w; | |
266 | char *t; | |
267 | ||
268 | fprintf (stderr, "%s", indirection_level_string ()); | |
269 | for (w = list; w; w = w->next) | |
270 | { | |
271 | t = w->word->word; | |
272 | if (t == 0 || *t == '\0') | |
273 | fprintf (stderr, "''%s", w->next ? " " : ""); | |
274 | else if (contains_shell_metas (t)) | |
275 | fprintf (stderr, "'%s'%s", t, w->next ? " " : ""); | |
276 | else | |
277 | fprintf (stderr, "%s%s", t, w->next ? " " : ""); | |
278 | } | |
279 | fprintf (stderr, "\n"); | |
726f6388 JA |
280 | } |
281 | ||
282 | static void | |
283 | command_print_word_list (list, separator) | |
284 | WORD_LIST *list; | |
285 | char *separator; | |
286 | { | |
287 | _print_word_list (list, separator, cprintf); | |
288 | } | |
289 | ||
290 | static void | |
291 | print_for_command (for_command) | |
292 | FOR_COM *for_command; | |
293 | { | |
294 | cprintf ("for %s in ", for_command->name->word); | |
295 | command_print_word_list (for_command->map_list, " "); | |
296 | cprintf (";"); | |
297 | newline ("do\n"); | |
298 | indentation += indentation_amount; | |
299 | make_command_string_internal (for_command->action); | |
300 | semicolon (); | |
301 | indentation -= indentation_amount; | |
302 | newline ("done"); | |
303 | } | |
304 | ||
305 | #if defined (SELECT_COMMAND) | |
306 | static void | |
307 | print_select_command (select_command) | |
308 | SELECT_COM *select_command; | |
309 | { | |
310 | cprintf ("select %s in ", select_command->name->word); | |
311 | command_print_word_list (select_command->map_list, " "); | |
312 | cprintf (";"); | |
313 | newline ("do\n"); | |
314 | indentation += indentation_amount; | |
315 | make_command_string_internal (select_command->action); | |
316 | semicolon (); | |
317 | indentation -= indentation_amount; | |
318 | newline ("done"); | |
319 | } | |
320 | #endif /* SELECT_COMMAND */ | |
321 | ||
322 | static void | |
323 | print_group_command (group_command) | |
324 | GROUP_COM *group_command; | |
325 | { | |
326 | group_command_nesting++; | |
327 | cprintf ("{ "); | |
328 | ||
ccc6cda3 | 329 | if (inside_function_def == 0) |
726f6388 JA |
330 | skip_this_indent++; |
331 | else | |
332 | { | |
333 | /* This is a group command { ... } inside of a function | |
ccc6cda3 | 334 | definition, and should be printed as a multiline group |
726f6388 JA |
335 | command, using the current indentation. */ |
336 | cprintf ("\n"); | |
337 | indentation += indentation_amount; | |
338 | } | |
339 | ||
340 | make_command_string_internal (group_command->command); | |
341 | ||
ccc6cda3 | 342 | if (inside_function_def) |
726f6388 | 343 | { |
ccc6cda3 | 344 | cprintf ("\n"); |
726f6388 JA |
345 | indentation -= indentation_amount; |
346 | indent (indentation); | |
726f6388 | 347 | } |
ccc6cda3 JA |
348 | else |
349 | { | |
350 | semicolon (); | |
351 | cprintf (" "); | |
352 | } | |
353 | ||
726f6388 | 354 | cprintf ("}"); |
ccc6cda3 | 355 | |
726f6388 JA |
356 | group_command_nesting--; |
357 | } | |
358 | ||
359 | static void | |
360 | print_case_command (case_command) | |
361 | CASE_COM *case_command; | |
362 | { | |
363 | cprintf ("case %s in ", case_command->word->word); | |
364 | if (case_command->clauses) | |
365 | print_case_clauses (case_command->clauses); | |
366 | newline ("esac"); | |
367 | } | |
368 | ||
369 | static void | |
370 | print_case_clauses (clauses) | |
371 | PATTERN_LIST *clauses; | |
372 | { | |
373 | indentation += indentation_amount; | |
374 | while (clauses) | |
375 | { | |
376 | newline (""); | |
377 | command_print_word_list (clauses->patterns, " | "); | |
378 | cprintf (")\n"); | |
379 | indentation += indentation_amount; | |
380 | make_command_string_internal (clauses->action); | |
381 | indentation -= indentation_amount; | |
382 | newline (";;"); | |
383 | clauses = clauses->next; | |
384 | } | |
385 | indentation -= indentation_amount; | |
386 | } | |
387 | ||
388 | static void | |
389 | print_while_command (while_command) | |
390 | WHILE_COM *while_command; | |
391 | { | |
392 | print_until_or_while (while_command, "while"); | |
393 | } | |
394 | ||
395 | static void | |
396 | print_until_command (while_command) | |
397 | WHILE_COM *while_command; | |
398 | { | |
399 | print_until_or_while (while_command, "until"); | |
400 | } | |
401 | ||
402 | static void | |
403 | print_until_or_while (while_command, which) | |
404 | WHILE_COM *while_command; | |
405 | char *which; | |
406 | { | |
407 | cprintf ("%s ", which); | |
408 | skip_this_indent++; | |
409 | make_command_string_internal (while_command->test); | |
410 | semicolon (); | |
411 | cprintf (" do\n"); /* was newline ("do\n"); */ | |
412 | indentation += indentation_amount; | |
413 | make_command_string_internal (while_command->action); | |
414 | indentation -= indentation_amount; | |
415 | semicolon (); | |
416 | newline ("done"); | |
417 | } | |
418 | ||
419 | static void | |
420 | print_if_command (if_command) | |
421 | IF_COM *if_command; | |
422 | { | |
423 | cprintf ("if "); | |
424 | skip_this_indent++; | |
425 | make_command_string_internal (if_command->test); | |
426 | semicolon (); | |
427 | cprintf (" then\n"); | |
428 | indentation += indentation_amount; | |
429 | make_command_string_internal (if_command->true_case); | |
430 | indentation -= indentation_amount; | |
431 | ||
432 | if (if_command->false_case) | |
433 | { | |
434 | semicolon (); | |
435 | newline ("else\n"); | |
436 | indentation += indentation_amount; | |
437 | make_command_string_internal (if_command->false_case); | |
438 | indentation -= indentation_amount; | |
439 | } | |
440 | semicolon (); | |
441 | newline ("fi"); | |
442 | } | |
443 | ||
444 | void | |
445 | print_simple_command (simple_command) | |
446 | SIMPLE_COM *simple_command; | |
447 | { | |
448 | command_print_word_list (simple_command->words, " "); | |
449 | ||
450 | if (simple_command->redirects) | |
451 | { | |
452 | cprintf (" "); | |
453 | print_redirection_list (simple_command->redirects); | |
454 | } | |
455 | } | |
456 | ||
457 | static void | |
458 | print_redirection_list (redirects) | |
459 | REDIRECT *redirects; | |
460 | { | |
461 | while (redirects) | |
462 | { | |
463 | print_redirection (redirects); | |
464 | redirects = redirects->next; | |
465 | if (redirects) | |
466 | cprintf (" "); | |
467 | } | |
468 | } | |
469 | ||
470 | static void | |
471 | print_redirection (redirect) | |
472 | REDIRECT *redirect; | |
473 | { | |
474 | int kill_leading = 0; | |
475 | int redirector = redirect->redirector; | |
476 | WORD_DESC *redirectee = redirect->redirectee.filename; | |
477 | int redir_fd = redirect->redirectee.dest; | |
478 | ||
479 | switch (redirect->instruction) | |
480 | { | |
481 | case r_output_direction: | |
482 | if (redirector != 1) | |
483 | cprintf ("%d", redirector); | |
484 | cprintf (">%s", redirectee->word); | |
485 | break; | |
486 | ||
487 | case r_input_direction: | |
488 | if (redirector != 0) | |
489 | cprintf ("%d", redirector); | |
490 | cprintf ("<%s", redirectee->word); | |
491 | break; | |
492 | ||
493 | case r_inputa_direction: /* Redirection created by the shell. */ | |
494 | cprintf ("&"); | |
495 | break; | |
496 | ||
497 | case r_appending_to: | |
498 | if (redirector != 1) | |
499 | cprintf ("%d", redirector); | |
500 | cprintf (">>%s", redirectee->word); | |
501 | break; | |
502 | ||
503 | case r_deblank_reading_until: | |
504 | kill_leading++; | |
505 | /* ... */ | |
506 | case r_reading_until: | |
507 | if (redirector != 0) | |
508 | cprintf ("%d", redirector); | |
509 | /* If the here document delimiter is quoted, single-quote it. */ | |
ccc6cda3 | 510 | if (redirect->redirectee.filename->flags & W_QUOTED) |
726f6388 JA |
511 | { |
512 | char *x; | |
513 | x = single_quote (redirect->here_doc_eof); | |
514 | cprintf ("<<%s%s\n", kill_leading? "-" : "", x); | |
515 | free (x); | |
516 | } | |
517 | else | |
518 | cprintf ("<<%s%s\n", kill_leading? "-" : "", redirect->here_doc_eof); | |
519 | cprintf ("%s%s", | |
520 | redirect->redirectee.filename->word, redirect->here_doc_eof); | |
521 | break; | |
522 | ||
523 | case r_duplicating_input: | |
524 | cprintf ("%d<&%d", redirector, redir_fd); | |
525 | break; | |
526 | ||
527 | case r_duplicating_output: | |
528 | cprintf ("%d>&%d", redirector, redir_fd); | |
529 | break; | |
530 | ||
531 | case r_duplicating_input_word: | |
532 | cprintf ("%d<&%s", redirector, redirectee->word); | |
533 | break; | |
534 | ||
535 | case r_duplicating_output_word: | |
536 | cprintf ("%d>&%s", redirector, redirectee->word); | |
537 | break; | |
538 | ||
539 | case r_close_this: | |
540 | cprintf ("%d>&-", redirector); | |
541 | break; | |
542 | ||
543 | case r_err_and_out: | |
544 | cprintf (">&%s", redirectee->word); | |
545 | break; | |
546 | ||
547 | case r_input_output: | |
548 | if (redirector != 1) | |
549 | cprintf ("%d", redirector); | |
550 | cprintf ("<>%s", redirectee->word); | |
551 | break; | |
552 | ||
553 | case r_output_force: | |
554 | if (redirector != 1) | |
555 | cprintf ("%d", redirector); | |
556 | cprintf (">|%s", redirectee->word); | |
557 | break; | |
558 | } | |
559 | } | |
560 | ||
561 | static void | |
562 | reset_locals () | |
563 | { | |
564 | inside_function_def = 0; | |
565 | indentation = 0; | |
566 | } | |
567 | ||
568 | static void | |
569 | print_function_def (func) | |
570 | FUNCTION_DEF *func; | |
571 | { | |
572 | cprintf ("function %s () \n", func->name->word); | |
573 | add_unwind_protect (reset_locals, 0); | |
574 | ||
575 | indent (indentation); | |
576 | cprintf ("{ \n"); | |
577 | ||
578 | inside_function_def++; | |
579 | indentation += indentation_amount; | |
580 | ||
ccc6cda3 JA |
581 | make_command_string_internal (func->command->type == cm_group |
582 | ? func->command->value.Group->command | |
583 | : func->command); | |
584 | ||
726f6388 JA |
585 | remove_unwind_protect (); |
586 | indentation -= indentation_amount; | |
587 | inside_function_def--; | |
588 | ||
589 | newline ("}"); | |
590 | } | |
591 | ||
592 | /* Return the string representation of the named function. | |
593 | NAME is the name of the function. | |
594 | COMMAND is the function body. It should be a GROUP_COM. | |
595 | MULTI_LINE is non-zero to pretty-print, or zero for all on one line. | |
596 | */ | |
597 | char * | |
598 | named_function_string (name, command, multi_line) | |
599 | char *name; | |
600 | COMMAND *command; | |
601 | int multi_line; | |
602 | { | |
603 | char *result; | |
ccc6cda3 | 604 | int old_indent, old_amount; |
726f6388 | 605 | |
ccc6cda3 JA |
606 | old_indent = indentation; |
607 | old_amount = indentation_amount; | |
726f6388 JA |
608 | command_string_index = 0; |
609 | ||
610 | if (name && *name) | |
611 | cprintf ("%s ", name); | |
612 | ||
613 | cprintf ("() "); | |
614 | ||
ccc6cda3 | 615 | if (multi_line == 0) |
726f6388 JA |
616 | { |
617 | indentation = 1; | |
618 | indentation_amount = 0; | |
619 | } | |
620 | else | |
621 | { | |
622 | cprintf ("\n"); | |
623 | indentation += indentation_amount; | |
624 | } | |
625 | ||
626 | inside_function_def++; | |
627 | ||
ccc6cda3 | 628 | cprintf (multi_line ? "{ \n" : "{ "); |
726f6388 | 629 | |
ccc6cda3 JA |
630 | make_command_string_internal (command->type == cm_group |
631 | ? command->value.Group->command | |
632 | : command); | |
726f6388 JA |
633 | |
634 | indentation = old_indent; | |
635 | indentation_amount = old_amount; | |
636 | inside_function_def--; | |
637 | ||
638 | newline ("}"); | |
639 | ||
640 | result = the_printed_command; | |
641 | ||
642 | if (!multi_line) | |
643 | { | |
644 | #if 0 | |
645 | register int i; | |
646 | for (i = 0; result[i]; i++) | |
647 | if (result[i] == '\n') | |
648 | { | |
649 | strcpy (result + i, result + i + 1); | |
650 | --i; | |
651 | } | |
652 | #else | |
653 | if (result[2] == '\n') /* XXX -- experimental */ | |
654 | strcpy (result + 2, result + 3); | |
655 | #endif | |
656 | } | |
657 | ||
658 | return (result); | |
659 | } | |
660 | ||
661 | static void | |
662 | newline (string) | |
663 | char *string; | |
664 | { | |
665 | cprintf ("\n"); | |
666 | indent (indentation); | |
667 | if (string && *string) | |
668 | cprintf ("%s", string); | |
669 | } | |
670 | ||
ccc6cda3 JA |
671 | static char *indentation_string; |
672 | static int indentation_size; | |
673 | ||
726f6388 JA |
674 | static void |
675 | indent (amount) | |
676 | int amount; | |
677 | { | |
ccc6cda3 JA |
678 | register int i; |
679 | ||
680 | RESIZE_MALLOCED_BUFFER (indentation_string, 0, amount, indentation_size, 16); | |
681 | ||
682 | for (i = 0; amount > 0; amount--) | |
683 | indentation_string[i++] = ' '; | |
684 | indentation_string[i] = '\0'; | |
685 | cprintf (indentation_string); | |
726f6388 JA |
686 | } |
687 | ||
688 | static void | |
689 | semicolon () | |
690 | { | |
691 | if (command_string_index > 0 && the_printed_command[command_string_index - 1] == '&') | |
692 | return; | |
693 | cprintf (";"); | |
694 | } | |
695 | ||
ccc6cda3 | 696 | #if !defined (USE_VARARGS) |
726f6388 JA |
697 | /* How to make the string. */ |
698 | static void | |
699 | cprintf (format, arg1, arg2) | |
700 | char *format, *arg1, *arg2; | |
701 | { | |
702 | register char *s; | |
703 | char char_arg[2], *argp, *args[2]; | |
704 | int arg_len, c, arg_index; | |
705 | ||
706 | args[arg_index = 0] = arg1; | |
707 | args[1] = arg2; | |
708 | ||
709 | arg_len = strlen (format); | |
710 | the_printed_command_resize (arg_len + 1); | |
711 | ||
712 | char_arg[1] = '\0'; | |
713 | s = format; | |
714 | while (s && *s) | |
715 | { | |
716 | int free_argp = 0; | |
717 | c = *s++; | |
718 | if (c != '%' || !*s) | |
719 | { | |
720 | argp = s; | |
721 | arg_len = 1; | |
722 | } | |
723 | else | |
724 | { | |
725 | c = *s++; | |
726 | switch (c) | |
727 | { | |
728 | case '%': | |
729 | char_arg[0] = c; | |
730 | argp = char_arg; | |
731 | arg_len = 1; | |
732 | break; | |
733 | ||
734 | case 's': | |
735 | argp = (char *)args[arg_index++]; | |
736 | arg_len = strlen (argp); | |
737 | break; | |
738 | ||
739 | case 'd': | |
740 | argp = itos (pointer_to_int (args[arg_index])); | |
741 | arg_index++; | |
742 | arg_len = strlen (argp); | |
743 | free_argp = 1; | |
744 | break; | |
745 | ||
746 | case 'c': | |
747 | char_arg[0] = pointer_to_int (args[arg_index]); | |
748 | arg_index++; | |
749 | argp = char_arg; | |
750 | arg_len = 1; | |
751 | break; | |
752 | ||
753 | default: | |
754 | programming_error ("cprintf: bad `%%' argument (%c)", c); | |
755 | } | |
756 | } | |
757 | if (argp) | |
758 | { | |
759 | the_printed_command_resize (arg_len + 1); | |
760 | FASTCOPY (argp, the_printed_command + command_string_index, arg_len); | |
761 | command_string_index += arg_len; | |
762 | if (free_argp) | |
763 | free (argp); | |
764 | } | |
765 | } | |
766 | ||
767 | the_printed_command[command_string_index] = '\0'; | |
768 | } | |
769 | ||
770 | #else /* We have support for varargs. */ | |
771 | ||
772 | /* How to make the string. */ | |
773 | static void | |
ccc6cda3 JA |
774 | #if defined (PREFER_STDARG) |
775 | cprintf (char *control, ...) | |
776 | #else | |
777 | cprintf (control, va_alist) | |
778 | char *control; | |
726f6388 | 779 | va_dcl |
ccc6cda3 | 780 | #endif |
726f6388 JA |
781 | { |
782 | register char *s; | |
ccc6cda3 | 783 | char char_arg[2], *argp; |
726f6388 JA |
784 | int digit_arg, arg_len, c; |
785 | va_list args; | |
786 | ||
ccc6cda3 JA |
787 | #if defined (PREFER_STDARG) |
788 | va_start (args, control); | |
789 | #else | |
726f6388 | 790 | va_start (args); |
ccc6cda3 | 791 | #endif |
726f6388 JA |
792 | |
793 | arg_len = strlen (control); | |
794 | the_printed_command_resize (arg_len + 1); | |
795 | ||
796 | char_arg[1] = '\0'; | |
797 | s = control; | |
798 | while (s && *s) | |
799 | { | |
ccc6cda3 JA |
800 | int free_argp; |
801 | free_argp = 0; | |
726f6388 | 802 | c = *s++; |
ccc6cda3 | 803 | argp = (char *)NULL; |
726f6388 JA |
804 | if (c != '%' || !*s) |
805 | { | |
806 | argp = s - 1; | |
807 | arg_len = 1; | |
808 | } | |
809 | else | |
810 | { | |
811 | c = *s++; | |
812 | switch (c) | |
813 | { | |
814 | case '%': | |
815 | char_arg[0] = c; | |
816 | argp = char_arg; | |
817 | arg_len = 1; | |
818 | break; | |
819 | ||
820 | case 's': | |
821 | argp = va_arg (args, char *); | |
822 | arg_len = strlen (argp); | |
823 | break; | |
824 | ||
825 | case 'd': | |
826 | digit_arg = va_arg (args, int); | |
827 | argp = itos (digit_arg); | |
828 | arg_len = strlen (argp); | |
829 | free_argp = 1; | |
830 | break; | |
831 | ||
832 | case 'c': | |
833 | char_arg[0] = va_arg (args, int); | |
834 | argp = char_arg; | |
835 | arg_len = 1; | |
836 | break; | |
837 | ||
838 | default: | |
839 | programming_error ("cprintf: bad `%%' argument (%c)", c); | |
ccc6cda3 | 840 | /*NOTREACHED*/ |
726f6388 JA |
841 | } |
842 | } | |
843 | ||
ccc6cda3 | 844 | if (argp && arg_len) |
726f6388 JA |
845 | { |
846 | the_printed_command_resize (arg_len + 1); | |
847 | FASTCOPY (argp, the_printed_command + command_string_index, arg_len); | |
848 | command_string_index += arg_len; | |
849 | if (free_argp) | |
850 | free (argp); | |
851 | } | |
852 | } | |
853 | ||
854 | the_printed_command[command_string_index] = '\0'; | |
855 | } | |
856 | #endif /* HAVE_VARARGS_H */ | |
857 | ||
858 | /* Ensure that there is enough space to stuff LENGTH characters into | |
859 | THE_PRINTED_COMMAND. */ | |
860 | static void | |
861 | the_printed_command_resize (length) | |
862 | int length; | |
863 | { | |
864 | if (!the_printed_command) | |
865 | { | |
866 | the_printed_command_size = length + 1; | |
867 | the_printed_command = xmalloc (the_printed_command_size); | |
868 | command_string_index = 0; | |
869 | } | |
870 | else if ((command_string_index + length) >= the_printed_command_size) | |
871 | { | |
872 | int new; | |
873 | new = command_string_index + length + 1; | |
874 | new = new + 2 * PRINTED_COMMAND_GROW_SIZE - 1; | |
875 | new -= new % PRINTED_COMMAND_GROW_SIZE; | |
876 | the_printed_command_size = new; | |
877 | the_printed_command = xrealloc (the_printed_command, the_printed_command_size); | |
878 | } | |
879 | } | |
ccc6cda3 JA |
880 | |
881 | #if defined (HAVE_VFPRINTF) | |
882 | ||
883 | static void | |
884 | xprintf (va_alist) | |
885 | va_dcl | |
886 | { | |
887 | va_list args; | |
888 | char *format; | |
889 | ||
890 | va_start (args); | |
891 | format = va_arg (args, char *); | |
892 | vfprintf (stdout, format, args); | |
893 | va_end (args); | |
894 | } | |
895 | ||
896 | #else | |
897 | ||
898 | static void | |
899 | xprintf (format, arg1, arg2, arg3, arg4, arg5) | |
900 | char *format; | |
901 | { | |
902 | printf (format, arg1, arg2, arg3, arg4, arg5); | |
903 | } | |
904 | ||
905 | #endif /* !HAVE_VFPRINTF */ |