]>
Commit | Line | Data |
---|---|---|
cce855bc JA |
1 | This file is printf.def, from which is created printf.c. |
2 | It implements the builtin "printf" in Bash. | |
3 | ||
4 | Copyright (C) 1997 Free Software Foundation, Inc. | |
5 | ||
6 | This file is part of GNU Bash, the Bourne Again SHell. | |
7 | ||
8 | Bash is free software; you can redistribute it and/or modify it under | |
9 | the terms of the GNU General Public License as published by the Free | |
bb70624e | 10 | Software Foundation; either version 2, or (at your option) any later |
cce855bc JA |
11 | version. |
12 | ||
13 | Bash is distributed in the hope that it will be useful, but WITHOUT ANY | |
14 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
15 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
16 | for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License along | |
19 | with Bash; see the file COPYING. If not, write to the Free Software | |
20 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA | |
21 | ||
22 | $PRODUCES printf.c | |
23 | ||
24 | $BUILTIN printf | |
25 | $FUNCTION printf_builtin | |
26 | $SHORT_DOC printf format [arguments] | |
27 | printf formats and prints ARGUMENTS under control of the FORMAT. FORMAT | |
28 | is a character string which contains three types of objects: plain | |
29 | characters, which are simply copied to standard output, character escape | |
30 | sequences which are converted and copied to the standard output, and | |
31 | format specifications, each of which causes printing of the next successive | |
32 | argument. In addition to the standard printf(1) formats, %b means to | |
33 | expand backslash escape sequences in the corresponding argument, and %q | |
34 | means to quote the argument in a way that can be reused as shell input. | |
35 | $END | |
36 | ||
37 | #include <config.h> | |
38 | ||
39 | #include "../bashtypes.h" | |
40 | ||
41 | #include <errno.h> | |
42 | #if defined (HAVE_LIMITS_H) | |
43 | # include <limits.h> | |
44 | #else | |
45 | /* Assume 32-bit ints and longs. */ | |
46 | # define LONG_MAX 2147483647L | |
47 | # define LONG_MIN (-2147483647L-1) | |
48 | # define INT_MAX 2147483647 | |
49 | # define INT_MIN (-2147483647-1) | |
50 | #endif | |
51 | ||
52 | #include <stdio.h> | |
53 | #include <ctype.h> | |
54 | ||
55 | #include "../bashansi.h" | |
56 | #include "../shell.h" | |
bb70624e | 57 | #include "stdc.h" |
cce855bc JA |
58 | #include "bashgetopt.h" |
59 | ||
60 | #if !defined (errno) | |
61 | extern int errno; | |
62 | #endif | |
63 | ||
64 | #define PF(f, func) \ | |
65 | do { \ | |
66 | if (fieldwidth && precision) \ | |
67 | (void)printf(f, fieldwidth, precision, func); \ | |
68 | else if (fieldwidth && precision == 0) \ | |
69 | (void)printf(f, fieldwidth, func); \ | |
70 | else if (precision) \ | |
71 | (void)printf(f, precision, func); \ | |
72 | else \ | |
73 | (void)printf(f, func); \ | |
74 | } while (0) | |
75 | ||
76 | #define PRETURN(value) \ | |
bb70624e | 77 | do { /* free (format); */ fflush (stdout); return (value); } while (0) |
cce855bc JA |
78 | |
79 | #define SKIP1 "#-+ 0" | |
80 | #define SKIP2 "*0123456789" | |
81 | ||
82 | static void printstr __P((char *, char *, int, int, int)); | |
bb70624e | 83 | static int tescape __P((char *, int, char *, int *)); |
cce855bc JA |
84 | static char *bexpand __P((char *, int, int *, int *)); |
85 | static char *mklong __P((char *, int)); | |
86 | static int getchr __P((void)); | |
87 | static char *getstr __P((void)); | |
88 | static int getint __P((void)); | |
89 | static int getlong __P((long *)); | |
90 | static int getulong __P((unsigned long *)); | |
28ef6c31 | 91 | static int getdouble __P((double *)); |
cce855bc JA |
92 | static int asciicode __P((void)); |
93 | ||
94 | static WORD_LIST *garglist; | |
95 | static int retval; | |
96 | ||
28ef6c31 | 97 | extern char *sh_backslash_quote (); |
cce855bc JA |
98 | |
99 | int | |
100 | printf_builtin (list) | |
101 | WORD_LIST *list; | |
102 | { | |
b72432fd | 103 | int ch, end, fieldwidth, precision, foundmod, fmtlen; |
cce855bc JA |
104 | char convch, nextch, *format, *fmt, *start; |
105 | ||
106 | retval = EXECUTION_SUCCESS; | |
107 | reset_internal_getopt (); | |
108 | while ((ch = internal_getopt (list, "")) != -1) | |
109 | { | |
110 | switch (ch) | |
111 | { | |
112 | case '?': | |
113 | default: | |
114 | builtin_usage(); | |
115 | return (EX_USAGE); | |
116 | } | |
117 | } | |
118 | list = loptend; | |
119 | ||
120 | if (list == 0) | |
121 | { | |
122 | builtin_usage (); | |
123 | return (EX_USAGE); | |
124 | } | |
125 | ||
126 | if (list->word->word == 0 || list->word->word[0] == '\0') | |
127 | return (EXECUTION_SUCCESS); | |
128 | ||
bb70624e | 129 | format = list->word->word; |
cce855bc JA |
130 | |
131 | garglist = list->next; | |
132 | ||
bc4cd23c | 133 | /* If the format string is empty after preprocessing, return immediately. */ |
bb70624e | 134 | if (format == 0 || *format == 0) |
bc4cd23c JA |
135 | return (EXECUTION_SUCCESS); |
136 | ||
cce855bc JA |
137 | /* Basic algorithm is to scan the format string for conversion |
138 | specifications -- once one is found, find out if the field | |
139 | width or precision is a '*'; if it is, gather up value. Note, | |
140 | format strings are reused as necessary to use up the provided | |
141 | arguments, arguments of zero/null string are provided to use | |
142 | up the format string. */ | |
143 | ||
144 | do | |
145 | { | |
146 | /* find next format specification */ | |
bb70624e | 147 | for (fmt = format; *fmt; fmt++) |
cce855bc JA |
148 | { |
149 | precision = fieldwidth = foundmod = 0; | |
150 | ||
bb70624e JA |
151 | if (*fmt == '\\') |
152 | { | |
153 | fmt++; | |
154 | /* A NULL third argument to tescape means to not do special | |
155 | processing for \c. */ | |
156 | fmt += tescape (fmt, 1, &nextch, (int *)NULL); | |
157 | putchar (nextch); | |
158 | fmt--; /* for loop will increment it for us again */ | |
159 | continue; | |
160 | } | |
161 | ||
cce855bc JA |
162 | if (*fmt != '%') |
163 | { | |
164 | putchar (*fmt); | |
165 | continue; | |
166 | } | |
167 | ||
168 | /* ASSERT(*fmt == '%') */ | |
169 | start = fmt++; | |
170 | ||
171 | if (*fmt == '%') /* %% prints a % */ | |
172 | { | |
173 | putchar ('%'); | |
174 | continue; | |
175 | } | |
176 | ||
177 | /* found format specification, skip to field width */ | |
178 | for (; *fmt && strchr(SKIP1, *fmt); ++fmt) | |
179 | ; | |
180 | fieldwidth = (*fmt == '*') ? getint () : 0; | |
181 | ||
182 | /* skip to possible '.', get following precision */ | |
183 | for (; *fmt && strchr(SKIP2, *fmt); ++fmt) | |
184 | ; | |
185 | if (*fmt == '.') | |
186 | { | |
187 | ++fmt; | |
188 | precision = (*fmt == '*') ? getint () : 0; | |
189 | } | |
190 | ||
191 | /* skip to conversion char */ | |
192 | for (; *fmt && strchr(SKIP2, *fmt); ++fmt) | |
193 | ; | |
cce855bc JA |
194 | |
195 | /* skip possible format modifiers */ | |
196 | if (*fmt == 'l' || *fmt == 'L' || *fmt == 'h') | |
197 | { | |
198 | fmt++; | |
199 | foundmod = 1; | |
200 | } | |
201 | ||
b72432fd JA |
202 | if (*fmt == 0) |
203 | { | |
204 | builtin_error ("`%s': missing format character", start); | |
205 | PRETURN (EXECUTION_FAILURE); | |
206 | } | |
207 | ||
cce855bc JA |
208 | convch = *fmt; |
209 | nextch = fmt[1]; | |
210 | fmt[1] = '\0'; | |
211 | switch(convch) | |
212 | { | |
213 | case 'c': | |
214 | { | |
215 | char p; | |
216 | ||
217 | p = getchr (); | |
218 | PF(start, p); | |
219 | break; | |
220 | } | |
221 | ||
222 | case 's': | |
223 | { | |
224 | char *p; | |
225 | ||
226 | p = getstr (); | |
227 | PF(start, p); | |
228 | break; | |
229 | } | |
230 | ||
231 | case 'b': /* expand escapes in argument */ | |
232 | { | |
233 | char *p, *xp; | |
234 | int rlen; | |
235 | ||
236 | p = getstr (); | |
237 | ch = rlen = 0; | |
238 | xp = bexpand (p, strlen (p), &ch, &rlen); | |
239 | ||
240 | if (xp) | |
241 | { | |
242 | /* Have to use printstr because of possible NUL bytes | |
243 | in XP -- printf does not handle that well. */ | |
244 | printstr (start, xp, rlen, fieldwidth, precision); | |
245 | free (xp); | |
246 | } | |
247 | ||
248 | if (ch) | |
249 | PRETURN (retval); | |
250 | break; | |
251 | } | |
252 | ||
253 | case 'q': /* print with shell quoting */ | |
254 | { | |
255 | char *p, *xp; | |
256 | ||
257 | p = getstr (); | |
28ef6c31 | 258 | xp = sh_backslash_quote (p); |
cce855bc JA |
259 | if (xp) |
260 | { | |
261 | /* Use printstr to get fieldwidth and precision right. */ | |
262 | printstr (start, xp, strlen (xp), fieldwidth, precision); | |
263 | free (xp); | |
264 | } | |
265 | break; | |
266 | } | |
267 | ||
268 | case 'd': | |
269 | case 'i': | |
270 | { | |
271 | long p; | |
272 | char *f; | |
273 | ||
274 | if (foundmod == 0 && ((f = mklong (start, convch)) == NULL)) | |
275 | PRETURN (EXECUTION_FAILURE); | |
276 | else | |
277 | f = start; | |
278 | if (getlong (&p)) | |
279 | PRETURN (EXECUTION_FAILURE); | |
280 | PF(f, p); | |
281 | break; | |
282 | } | |
283 | ||
284 | case 'o': | |
285 | case 'u': | |
286 | case 'x': | |
287 | case 'X': | |
288 | { | |
289 | unsigned long p; | |
290 | char *f; | |
291 | ||
292 | if (foundmod == 0 && ((f = mklong (start, convch)) == NULL)) | |
293 | PRETURN (EXECUTION_FAILURE); | |
294 | else | |
295 | f = start; | |
296 | if (getulong (&p)) | |
297 | PRETURN (EXECUTION_FAILURE); | |
298 | PF (f, p); | |
299 | break; | |
300 | } | |
301 | ||
302 | case 'e': | |
303 | case 'E': | |
304 | case 'f': | |
305 | case 'g': | |
306 | case 'G': | |
307 | { | |
308 | double p; | |
309 | ||
28ef6c31 JA |
310 | if (getdouble (&p)) |
311 | PRETURN (EXECUTION_FAILURE); | |
cce855bc JA |
312 | PF(start, p); |
313 | break; | |
314 | } | |
315 | ||
bb70624e JA |
316 | /* We don't output unrecognized format characters; we print an |
317 | error message and return a failure exit status. */ | |
cce855bc | 318 | default: |
bb70624e | 319 | builtin_error ("`%c': invalid format character", convch); |
cce855bc JA |
320 | PRETURN (EXECUTION_FAILURE); |
321 | } | |
322 | ||
323 | fmt[1] = nextch; | |
324 | } | |
325 | } | |
bc4cd23c | 326 | while (garglist && garglist != list->next); |
cce855bc JA |
327 | |
328 | PRETURN (retval); | |
329 | } | |
330 | ||
331 | /* We duplicate a lot of what printf(3) does here. */ | |
332 | static void | |
333 | printstr (fmt, string, len, fieldwidth, precision) | |
334 | char *fmt; /* format */ | |
335 | char *string; /* expanded string argument */ | |
336 | int len; /* length of expanded string */ | |
337 | int fieldwidth; /* argument for width of `*' */ | |
338 | int precision; /* argument for precision of `*' */ | |
339 | { | |
340 | #if 0 | |
341 | char *s; | |
342 | #endif | |
343 | int padlen, nc, ljust, i; | |
344 | int fw, pr; /* fieldwidth and precision */ | |
345 | ||
346 | if (string == 0 || *string == '\0') | |
347 | return; | |
348 | ||
349 | #if 0 | |
350 | s = fmt; | |
351 | #endif | |
352 | if (*fmt == '%') | |
353 | fmt++; | |
354 | ||
355 | ljust = fw = pr = 0; | |
356 | ||
357 | /* skip flags */ | |
358 | while (*fmt == '#' || *fmt == '-' || *fmt == '+' || *fmt == ' ' || *fmt == '0') | |
359 | { | |
360 | if (*fmt == '-') | |
361 | ljust = 1; | |
362 | fmt++; | |
363 | } | |
364 | ||
365 | /* get fieldwidth, if present */ | |
366 | if (*fmt == '*') | |
367 | { | |
368 | fmt++; | |
369 | fw = fieldwidth; | |
370 | } | |
371 | else if (isdigit (*fmt)) | |
372 | { | |
373 | fw = *fmt++ - '0'; | |
374 | while (isdigit (*fmt)) | |
375 | fw = (fw * 10) + (*fmt++ - '0'); | |
376 | } | |
377 | ||
378 | /* get precision, if present */ | |
379 | if (*fmt == '.') | |
380 | { | |
381 | fmt++; | |
382 | if (*fmt == '*') | |
383 | { | |
384 | fmt++; | |
385 | pr = precision; | |
386 | } | |
387 | else if (isdigit (*fmt)) | |
388 | { | |
389 | pr = *fmt++ - '0'; | |
390 | while (isdigit (*fmt)) | |
391 | pr = (pr * 10) + (*fmt++ - '0'); | |
392 | } | |
393 | } | |
394 | ||
395 | #if 0 | |
396 | /* If we remove this, get rid of `s'. */ | |
397 | if (*fmt != 'b' && *fmt != 'q') | |
398 | { | |
399 | internal_error ("format parsing problem: %s", s); | |
400 | fw = pr = 0; | |
401 | } | |
402 | #endif | |
403 | ||
404 | /* chars from string to print */ | |
405 | nc = (pr > 0 && pr <= len) ? pr : len; | |
406 | ||
407 | padlen = fw - nc; | |
408 | if (padlen < 0) | |
409 | padlen = 0; | |
410 | if (ljust) | |
411 | padlen = -padlen; | |
412 | ||
413 | /* leading pad characters */ | |
414 | for (; padlen > 0; padlen--) | |
415 | putchar (' '); | |
416 | ||
417 | /* output NC characters from STRING */ | |
418 | for (i = 0; i < nc; i++) | |
419 | putchar (string[i]); | |
420 | ||
421 | /* output any necessary trailing padding */ | |
422 | for (; padlen < 0; padlen++) | |
423 | putchar (' '); | |
424 | } | |
425 | ||
426 | /* Convert STRING by expanding the escape sequences specified by the | |
427 | POSIX standard for printf's `%b' format string. If SAWC is non-null, | |
428 | recognize `\c' and use that as a string terminator. If we see \c, set | |
429 | *SAWC to 1 before returning. LEN is the length of STRING. */ | |
430 | ||
431 | #ifdef isoctal | |
432 | #undef isoctal | |
433 | #endif | |
434 | ||
435 | #define isoctal(c) ((c) >= '0' && (c) <= '7') | |
436 | ||
437 | #define OCTVALUE(c) ((c) - '0') | |
438 | ||
439 | #ifndef isxdigit | |
440 | # define isxdigit(c) (isdigit((c)) || ((c) >= 'a' && (c) <= 'f') || ((c) >= 'A' && (c) <= 'F')) | |
441 | #endif | |
442 | ||
443 | #define HEXVALUE(c) \ | |
444 | ((c) >= 'a' && (c) <= 'f' ? (c)-'a'+10 : (c) >= 'A' && (c) <= 'F' ? (c)-'A'+10 : (c)-'0') | |
bb70624e JA |
445 | |
446 | /* Translate a single backslash-escape sequence starting at ESTART (the | |
447 | character after the backslash) and return the number of characters | |
448 | consumed by the sequence. CP is the place to return the translated | |
449 | value. *SAWC is set to 1 if the escape sequence was \c, since that means | |
450 | to short-circuit the rest of the processing. If SAWC is null, we don't | |
451 | do the \c short-circuiting, and \c is treated as an unrecognized escape | |
452 | sequence. */ | |
453 | static int | |
454 | tescape (estart, trans_squote, cp, sawc) | |
455 | char *estart; | |
456 | int trans_squote; | |
457 | char *cp; | |
458 | int *sawc; | |
459 | { | |
460 | register char *p; | |
461 | int temp, c, evalue; | |
462 | ||
463 | p = estart; | |
464 | ||
465 | switch (c = *p++) | |
466 | { | |
467 | #if defined (__STDC__) | |
468 | case 'a': *cp = '\a'; break; | |
469 | #else | |
470 | case 'a': *cp = '\007'; break; | |
471 | #endif | |
472 | ||
473 | case 'b': *cp = '\b'; break; | |
474 | ||
28ef6c31 JA |
475 | case 'e': |
476 | case 'E': *cp = '\033'; break; /* ESC -- non-ANSI */ | |
bb70624e JA |
477 | |
478 | case 'f': *cp = '\f'; break; | |
479 | ||
480 | case 'n': *cp = '\n'; break; | |
481 | ||
482 | case 'r': *cp = '\r'; break; | |
483 | ||
484 | case 't': *cp = '\t'; break; | |
485 | ||
486 | case 'v': *cp = '\v'; break; | |
487 | ||
488 | /* %b octal constants are `\0' followed by one, two, or three | |
28ef6c31 | 489 | octal digits... */ |
bb70624e JA |
490 | case '0': |
491 | for (temp = 3, evalue = 0; isoctal (*p) && temp--; p++) | |
492 | evalue = (evalue * 8) + OCTVALUE (*p); | |
493 | *cp = evalue; | |
494 | break; | |
495 | ||
496 | /* but, as an extension, the other echo-like octal escape | |
497 | sequences are supported as well. */ | |
498 | case '1': case '2': case '3': case '4': | |
499 | case '5': case '6': case '7': | |
500 | for (temp = 2, evalue = c - '0'; isoctal (*p) && temp--; p++) | |
501 | evalue = (evalue * 8) + OCTVALUE (*p); | |
502 | *cp = evalue; | |
503 | break; | |
504 | ||
505 | /* And, as another extension, we allow \xNNN, where each N is a | |
506 | hex digit. */ | |
507 | case 'x': | |
508 | for (temp = 3, evalue = 0; isxdigit (*p) && temp--; p++) | |
509 | evalue = (evalue * 16) + HEXVALUE (*p); | |
510 | if (temp == 3) | |
511 | { | |
512 | builtin_error ("missing hex digit for \\x"); | |
513 | *cp = '\\'; | |
514 | return 0; | |
515 | } | |
516 | *cp = evalue; | |
517 | break; | |
518 | ||
519 | case '\\': /* \\ -> \ */ | |
520 | *cp = c; | |
521 | break; | |
522 | ||
523 | case '\'': /* TRANS_SQUOTE != 0 means \' -> ' */ | |
524 | if (trans_squote) | |
525 | *cp = c; | |
526 | else | |
527 | { | |
528 | *cp = '\\'; | |
529 | return 0; | |
530 | } | |
531 | break; | |
532 | ||
533 | case 'c': | |
534 | if (sawc) | |
535 | { | |
536 | *sawc = 1; | |
537 | break; | |
538 | } | |
539 | /* other backslash escapes are passed through unaltered */ | |
540 | default: | |
541 | *cp = '\\'; | |
542 | return 0; | |
543 | } | |
544 | return (p - estart); | |
545 | } | |
546 | ||
cce855bc JA |
547 | static char * |
548 | bexpand (string, len, sawc, lenp) | |
549 | char *string; | |
550 | int len, *sawc, *lenp; | |
551 | { | |
bb70624e JA |
552 | int temp; |
553 | char *ret, *r, *s, c; | |
cce855bc JA |
554 | |
555 | if (string == 0 || *string == '\0') | |
556 | { | |
557 | if (sawc) | |
558 | *sawc = 0; | |
559 | if (lenp) | |
560 | *lenp = 0; | |
561 | return ((char *)NULL); | |
562 | } | |
563 | ||
564 | ret = xmalloc (len + 1); | |
565 | for (r = ret, s = string; s && *s; ) | |
566 | { | |
567 | c = *s++; | |
568 | if (c != '\\' || *s == '\0') | |
569 | { | |
570 | *r++ = c; | |
571 | continue; | |
572 | } | |
bb70624e JA |
573 | temp = 0; |
574 | s += tescape (s, 0, &c, &temp); | |
575 | if (temp) | |
cce855bc | 576 | { |
cce855bc JA |
577 | if (sawc) |
578 | *sawc = 1; | |
bb70624e | 579 | break; |
cce855bc JA |
580 | } |
581 | ||
582 | *r++ = c; | |
583 | } | |
584 | ||
585 | *r = '\0'; | |
586 | if (lenp) | |
587 | *lenp = r - ret; | |
588 | return ret; | |
589 | } | |
590 | ||
591 | static char * | |
592 | mklong (str, ch) | |
593 | char *str; | |
594 | int ch; | |
595 | { | |
596 | static char copy[64]; | |
597 | int len; | |
598 | ||
599 | len = strlen (str) + 2; | |
600 | FASTCOPY (str, copy, len - 3); | |
601 | copy[len - 3] = 'l'; | |
602 | copy[len - 2] = ch; | |
603 | copy[len - 1] = '\0'; | |
604 | return (copy); | |
605 | } | |
606 | ||
607 | static int | |
608 | getchr () | |
609 | { | |
610 | int ret; | |
611 | ||
612 | if (garglist == 0) | |
613 | return ('\0'); | |
614 | ||
615 | ret = (int)garglist->word->word[0]; | |
616 | garglist = garglist->next; | |
617 | return ret; | |
618 | } | |
619 | ||
620 | static char * | |
621 | getstr () | |
622 | { | |
623 | char *ret; | |
624 | ||
625 | if (garglist == 0) | |
626 | return (""); | |
627 | ||
628 | ret = garglist->word->word; | |
629 | garglist = garglist->next; | |
630 | return ret; | |
631 | } | |
632 | ||
633 | static int | |
634 | getint () | |
635 | { | |
636 | long ret; | |
637 | ||
638 | if (getlong (&ret)) | |
639 | return (0); | |
640 | ||
641 | if (ret > INT_MAX) | |
642 | { | |
28ef6c31 JA |
643 | builtin_error ("warning: %s: %s", garglist->word->word, strerror(ERANGE)); |
644 | ret = INT_MAX; | |
645 | } | |
646 | else if (ret < INT_MIN) | |
647 | { | |
648 | builtin_error ("warning: %s: %s", garglist->word->word, strerror(ERANGE)); | |
649 | ret = INT_MIN; | |
cce855bc JA |
650 | } |
651 | ||
652 | return ((int)ret); | |
653 | } | |
654 | ||
655 | static int | |
656 | getlong (lp) | |
657 | long *lp; | |
658 | { | |
659 | long ret; | |
bb70624e | 660 | char *ep; |
cce855bc JA |
661 | |
662 | if (garglist == 0) | |
663 | { | |
664 | *lp = 0L; | |
665 | return (0); | |
666 | } | |
667 | ||
668 | if (garglist->word->word[0] == '\'' || garglist->word->word[0] == '"') | |
669 | { | |
670 | *lp = (long)asciicode (); | |
671 | return (0); | |
672 | } | |
673 | ||
674 | errno = 0; | |
bb70624e JA |
675 | /* If we use 0 as the third argument, we can handle octal and hex, which |
676 | legal_number does not. (This was | |
677 | if (legal_number (garglist->word->word, &ret) == 0) | |
678 | ) */ | |
679 | ret = strtol (garglist->word->word, &ep, 0); | |
680 | if (*ep != '\0') | |
cce855bc | 681 | { |
bb70624e | 682 | builtin_error ("%s: invalid number", garglist->word->word); |
cce855bc JA |
683 | return (1); |
684 | } | |
685 | else if (errno == ERANGE) | |
28ef6c31 | 686 | builtin_error ("warning: %s: %s", garglist->word->word, strerror(ERANGE)); |
cce855bc JA |
687 | |
688 | *lp = ret; | |
689 | garglist = garglist->next; | |
690 | return (0); | |
691 | } | |
692 | ||
693 | static int | |
694 | getulong (ulp) | |
695 | unsigned long *ulp; | |
696 | { | |
697 | unsigned long ret; | |
698 | char *ep; | |
699 | ||
700 | if (garglist == 0) | |
701 | { | |
702 | *ulp = (unsigned long)0; | |
703 | return (0); | |
704 | } | |
705 | ||
706 | if (garglist->word->word[0] == '\'' || garglist->word->word[0] == '"') | |
707 | { | |
708 | *ulp = (unsigned long)asciicode (); | |
709 | return (0); | |
710 | } | |
711 | ||
712 | errno = 0; | |
713 | ret = strtoul (garglist->word->word, &ep, 0); | |
714 | ||
715 | if (*ep) | |
716 | { | |
bb70624e | 717 | builtin_error ("%s: invalid number", garglist->word->word); |
cce855bc JA |
718 | return (1); |
719 | } | |
720 | else if (errno == ERANGE) | |
28ef6c31 | 721 | builtin_error ("warning: %s: %s", garglist->word->word, strerror(ERANGE)); |
cce855bc JA |
722 | |
723 | *ulp = ret; | |
724 | garglist = garglist->next; | |
725 | return (0); | |
726 | } | |
727 | ||
28ef6c31 JA |
728 | static int |
729 | getdouble (dp) | |
730 | double *dp; | |
cce855bc JA |
731 | { |
732 | double ret; | |
28ef6c31 | 733 | char *ep; |
cce855bc JA |
734 | |
735 | if (garglist == 0) | |
28ef6c31 JA |
736 | { |
737 | *dp = (double)0; | |
738 | return (0); | |
739 | } | |
cce855bc JA |
740 | |
741 | if (garglist->word->word[0] == '\'' || garglist->word->word[0] == '"') | |
28ef6c31 JA |
742 | { |
743 | *dp = (double)asciicode (); | |
744 | return (0); | |
745 | } | |
cce855bc | 746 | |
28ef6c31 JA |
747 | errno = 0; |
748 | ret = strtod (garglist->word->word, &ep); | |
749 | if (*ep) | |
750 | { | |
751 | builtin_error ("%s: invalid number", garglist->word->word); | |
752 | return (1); | |
753 | } | |
754 | else if (errno == ERANGE) | |
755 | builtin_error ("warning: %s: %s", garglist->word->word, strerror(ERANGE)); | |
756 | ||
757 | *dp = ret; | |
cce855bc | 758 | garglist = garglist->next; |
28ef6c31 | 759 | return (0); |
cce855bc JA |
760 | } |
761 | ||
762 | /* NO check is needed for garglist here. */ | |
763 | static int | |
764 | asciicode () | |
765 | { | |
766 | register int ch; | |
767 | ||
768 | ch = garglist->word->word[1]; | |
769 | garglist = garglist->next; | |
770 | return (ch); | |
771 | } |