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-rw-r--r--src/regress/lib/libc/regex/main.c516
1 files changed, 516 insertions, 0 deletions
diff --git a/src/regress/lib/libc/regex/main.c b/src/regress/lib/libc/regex/main.c
new file mode 100644
index 0000000000..e0ed86f5e8
--- /dev/null
+++ b/src/regress/lib/libc/regex/main.c
@@ -0,0 +1,516 @@
1/* $OpenBSD: main.c,v 1.7 2007/09/12 19:32:35 otto Exp $ */
2/* $NetBSD: main.c,v 1.2 1995/04/20 22:39:51 cgd Exp $ */
3
4#include <stdio.h>
5#include <stdlib.h>
6#include <string.h>
7#include <sys/types.h>
8#include <regex.h>
9#include <assert.h>
10#include <unistd.h>
11
12#include "main.ih"
13
14char *progname;
15int debug = 0;
16int line = 0;
17int status = 0;
18
19int copts = REG_EXTENDED;
20int eopts = 0;
21regoff_t startoff = 0;
22regoff_t endoff = 0;
23
24
25extern int split(char *, char *[], int, char *);
26extern void regprint(regex_t *, FILE *);
27
28/*
29 - main - do the simple case, hand off to regress() for regression
30 */
31int
32main(int argc, char *argv[])
33
34{
35 regex_t re;
36# define NS 10
37 regmatch_t subs[NS];
38 char erbuf[100];
39 int err;
40 size_t len;
41 int c;
42 int errflg = 0;
43 register int i;
44 extern int optind;
45 extern char *optarg;
46
47 progname = argv[0];
48
49 while ((c = getopt(argc, argv, "c:e:S:E:x")) != -1)
50 switch (c) {
51 case 'c': /* compile options */
52 copts = options('c', optarg);
53 break;
54 case 'e': /* execute options */
55 eopts = options('e', optarg);
56 break;
57 case 'S': /* start offset */
58 startoff = (regoff_t)atoi(optarg);
59 break;
60 case 'E': /* end offset */
61 endoff = (regoff_t)atoi(optarg);
62 break;
63 case 'x': /* Debugging. */
64 debug++;
65 break;
66 case '?':
67 default:
68 errflg++;
69 break;
70 }
71 if (errflg) {
72 fprintf(stderr, "usage: %s ", progname);
73 fprintf(stderr, "[-c copt][-C][-d] [re]\n");
74 exit(2);
75 }
76
77 if (optind >= argc) {
78 regress(stdin);
79 exit(status);
80 }
81
82 err = regcomp(&re, argv[optind++], copts);
83 if (err) {
84 len = regerror(err, &re, erbuf, sizeof(erbuf));
85 fprintf(stderr, "error %s, %zu/%zu `%s'\n",
86 eprint(err), len, sizeof(erbuf), erbuf);
87 exit(status);
88 }
89 regprint(&re, stdout);
90
91 if (optind >= argc) {
92 regfree(&re);
93 exit(status);
94 }
95
96 if (eopts&REG_STARTEND) {
97 subs[0].rm_so = startoff;
98 subs[0].rm_eo = strlen(argv[optind]) - endoff;
99 }
100 err = regexec(&re, argv[optind], (size_t)NS, subs, eopts);
101 if (err) {
102 len = regerror(err, &re, erbuf, sizeof(erbuf));
103 fprintf(stderr, "error %s, %zu/%zu `%s'\n",
104 eprint(err), len, sizeof(erbuf), erbuf);
105 exit(status);
106 }
107 if (!(copts&REG_NOSUB)) {
108 len = (size_t)(subs[0].rm_eo - subs[0].rm_so);
109 if (subs[0].rm_so != -1) {
110 if (len != 0)
111 printf("match `%.*s'\n", (int)len,
112 argv[optind] + subs[0].rm_so);
113 else
114 printf("match `'@%.1s\n",
115 argv[optind] + subs[0].rm_so);
116 }
117 for (i = 1; i < NS; i++)
118 if (subs[i].rm_so != -1)
119 printf("(%d) `%.*s'\n", i,
120 (int)(subs[i].rm_eo - subs[i].rm_so),
121 argv[optind] + subs[i].rm_so);
122 }
123 exit(status);
124}
125
126/*
127 - regress - main loop of regression test
128 == void regress(FILE *in);
129 */
130void
131regress(in)
132FILE *in;
133{
134 char inbuf[1000];
135# define MAXF 10
136 char *f[MAXF];
137 int nf;
138 int i;
139 char erbuf[100];
140 size_t ne;
141 char *badpat = "invalid regular expression";
142# define SHORT 10
143 char *bpname = "REG_BADPAT";
144 regex_t re;
145
146 while (fgets(inbuf, sizeof(inbuf), in) != NULL) {
147 line++;
148 if (inbuf[0] == '#' || inbuf[0] == '\n')
149 continue; /* NOTE CONTINUE */
150 inbuf[strcspn(inbuf, "\n")] = '\0'; /* get rid of stupid \n */
151 if (debug)
152 fprintf(stdout, "%d:\n", line);
153 nf = split(inbuf, f, MAXF, "\t\t");
154 if (nf < 3) {
155 fprintf(stderr, "bad input, line %d\n", line);
156 exit(1);
157 }
158 for (i = 0; i < nf; i++)
159 if (strcmp(f[i], "\"\"") == 0)
160 f[i] = "";
161 if (nf <= 3)
162 f[3] = NULL;
163 if (nf <= 4)
164 f[4] = NULL;
165 try(f[0], f[1], f[2], f[3], f[4], options('c', f[1]));
166 if (opt('&', f[1])) /* try with either type of RE */
167 try(f[0], f[1], f[2], f[3], f[4],
168 options('c', f[1]) &~ REG_EXTENDED);
169 }
170
171 ne = regerror(REG_BADPAT, (regex_t *)NULL, erbuf, sizeof(erbuf));
172 if (strcmp(erbuf, badpat) != 0 || ne != strlen(badpat)+1) {
173 fprintf(stderr, "end: regerror() test gave `%s' not `%s'\n",
174 erbuf, badpat);
175 status = 1;
176 }
177 ne = regerror(REG_BADPAT, (regex_t *)NULL, erbuf, (size_t)SHORT);
178 if (strncmp(erbuf, badpat, SHORT-1) != 0 || erbuf[SHORT-1] != '\0' ||
179 ne != strlen(badpat)+1) {
180 fprintf(stderr, "end: regerror() short test gave `%s' not `%.*s'\n",
181 erbuf, SHORT-1, badpat);
182 status = 1;
183 }
184 ne = regerror(REG_ITOA|REG_BADPAT, (regex_t *)NULL, erbuf, sizeof(erbuf));
185 if (strcmp(erbuf, bpname) != 0 || ne != strlen(bpname)+1) {
186 fprintf(stderr, "end: regerror() ITOA test gave `%s' not `%s'\n",
187 erbuf, bpname);
188 status = 1;
189 }
190 re.re_endp = bpname;
191 ne = regerror(REG_ATOI, &re, erbuf, sizeof(erbuf));
192 if (atoi(erbuf) != (int)REG_BADPAT) {
193 fprintf(stderr, "end: regerror() ATOI test gave `%s' not `%ld'\n",
194 erbuf, (long)REG_BADPAT);
195 status = 1;
196 } else if (ne != strlen(erbuf)+1) {
197 fprintf(stderr, "end: regerror() ATOI test len(`%s') = %ld\n",
198 erbuf, (long)REG_BADPAT);
199 status = 1;
200 }
201}
202
203/*
204 - try - try it, and report on problems
205 == void try(char *f0, char *f1, char *f2, char *f3, char *f4, int opts);
206 */
207void
208try(f0, f1, f2, f3, f4, opts)
209char *f0;
210char *f1;
211char *f2;
212char *f3;
213char *f4;
214int opts; /* may not match f1 */
215{
216 regex_t re;
217# define NSUBS 10
218 regmatch_t subs[NSUBS];
219# define NSHOULD 15
220 char *should[NSHOULD];
221 int nshould;
222 char erbuf[100];
223 int err;
224 int len;
225 char *type = (opts & REG_EXTENDED) ? "ERE" : "BRE";
226 register int i;
227 char *grump;
228 char f0copy[1000];
229 char f2copy[1000];
230
231 strlcpy(f0copy, f0, sizeof f0copy);
232 re.re_endp = (opts&REG_PEND) ? f0copy + strlen(f0copy) : NULL;
233 fixstr(f0copy);
234 err = regcomp(&re, f0copy, opts);
235 if (err != 0 && (!opt('C', f1) || err != efind(f2))) {
236 /* unexpected error or wrong error */
237 len = regerror(err, &re, erbuf, sizeof(erbuf));
238 fprintf(stderr, "%d: %s error %s, %d/%zu `%s'\n",
239 line, type, eprint(err), len,
240 sizeof(erbuf), erbuf);
241 status = 1;
242 } else if (err == 0 && opt('C', f1)) {
243 /* unexpected success */
244 fprintf(stderr, "%d: %s should have given REG_%s\n",
245 line, type, f2);
246 status = 1;
247 err = 1; /* so we won't try regexec */
248 }
249
250 if (err != 0) {
251 regfree(&re);
252 return;
253 }
254
255 strlcpy(f2copy, f2, sizeof f2copy);
256 fixstr(f2copy);
257
258 if (options('e', f1)&REG_STARTEND) {
259 if (strchr(f2, '(') == NULL || strchr(f2, ')') == NULL)
260 fprintf(stderr, "%d: bad STARTEND syntax\n", line);
261 subs[0].rm_so = strchr(f2, '(') - f2 + 1;
262 subs[0].rm_eo = strchr(f2, ')') - f2;
263 }
264 err = regexec(&re, f2copy, NSUBS, subs, options('e', f1));
265
266 if (err != 0 && (f3 != NULL || err != REG_NOMATCH)) {
267 /* unexpected error or wrong error */
268 len = regerror(err, &re, erbuf, sizeof(erbuf));
269 fprintf(stderr, "%d: %s exec error %s, %d/%zu `%s'\n",
270 line, type, eprint(err), len,
271 sizeof(erbuf), erbuf);
272 status = 1;
273 } else if (err != 0) {
274 /* nothing more to check */
275 } else if (f3 == NULL) {
276 /* unexpected success */
277 fprintf(stderr, "%d: %s exec should have failed\n",
278 line, type);
279 status = 1;
280 err = 1; /* just on principle */
281 } else if (opts&REG_NOSUB) {
282 /* nothing more to check */
283 } else if ((grump = check(f2, subs[0], f3)) != NULL) {
284 fprintf(stderr, "%d: %s %s\n", line, type, grump);
285 status = 1;
286 err = 1;
287 }
288
289 if (err != 0 || f4 == NULL) {
290 regfree(&re);
291 return;
292 }
293
294 for (i = 1; i < NSHOULD; i++)
295 should[i] = NULL;
296 nshould = split(f4, should+1, NSHOULD-1, ",");
297 if (nshould == 0) {
298 nshould = 1;
299 should[1] = "";
300 }
301 for (i = 1; i < NSUBS; i++) {
302 grump = check(f2, subs[i], should[i]);
303 if (grump != NULL) {
304 fprintf(stderr, "%d: %s $%d %s\n", line,
305 type, i, grump);
306 status = 1;
307 err = 1;
308 }
309 }
310
311 regfree(&re);
312}
313
314/*
315 - options - pick options out of a regression-test string
316 == int options(int type, char *s);
317 */
318int
319options(type, s)
320int type; /* 'c' compile, 'e' exec */
321char *s;
322{
323 register char *p;
324 register int o = (type == 'c') ? copts : eopts;
325 register char *legal = (type == 'c') ? "bisnmp" : "^$#tl";
326
327 for (p = s; *p != '\0'; p++)
328 if (strchr(legal, *p) != NULL)
329 switch (*p) {
330 case 'b':
331 o &= ~REG_EXTENDED;
332 break;
333 case 'i':
334 o |= REG_ICASE;
335 break;
336 case 's':
337 o |= REG_NOSUB;
338 break;
339 case 'n':
340 o |= REG_NEWLINE;
341 break;
342 case 'm':
343 o &= ~REG_EXTENDED;
344 o |= REG_NOSPEC;
345 break;
346 case 'p':
347 o |= REG_PEND;
348 break;
349 case '^':
350 o |= REG_NOTBOL;
351 break;
352 case '$':
353 o |= REG_NOTEOL;
354 break;
355 case '#':
356 o |= REG_STARTEND;
357 break;
358 case 't': /* trace */
359 o |= REG_TRACE;
360 break;
361 case 'l': /* force long representation */
362 o |= REG_LARGE;
363 break;
364 case 'r': /* force backref use */
365 o |= REG_BACKR;
366 break;
367 }
368 return(o);
369}
370
371/*
372 - opt - is a particular option in a regression string?
373 == int opt(int c, char *s);
374 */
375int /* predicate */
376opt(c, s)
377int c;
378char *s;
379{
380 return(strchr(s, c) != NULL);
381}
382
383/*
384 - fixstr - transform magic characters in strings
385 == void fixstr(register char *p);
386 */
387void
388fixstr(p)
389register char *p;
390{
391 if (p == NULL)
392 return;
393
394 for (; *p != '\0'; p++)
395 if (*p == 'N')
396 *p = '\n';
397 else if (*p == 'T')
398 *p = '\t';
399 else if (*p == 'S')
400 *p = ' ';
401 else if (*p == 'Z')
402 *p = '\0';
403}
404
405/*
406 - check - check a substring match
407 == char *check(char *str, regmatch_t sub, char *should);
408 */
409char * /* NULL or complaint */
410check(str, sub, should)
411char *str;
412regmatch_t sub;
413char *should;
414{
415 register int len;
416 register int shlen;
417 register char *p;
418 static char grump[500];
419 register char *at = NULL;
420
421 if (should != NULL && strcmp(should, "-") == 0)
422 should = NULL;
423 if (should != NULL && should[0] == '@') {
424 at = should + 1;
425 should = "";
426 }
427
428 /* check rm_so and rm_eo for consistency */
429 if (sub.rm_so > sub.rm_eo || (sub.rm_so == -1 && sub.rm_eo != -1) ||
430 (sub.rm_so != -1 && sub.rm_eo == -1) ||
431 (sub.rm_so != -1 && sub.rm_so < 0) ||
432 (sub.rm_eo != -1 && sub.rm_eo < 0) ) {
433 snprintf(grump, sizeof grump,
434 "start %ld end %ld", (long)sub.rm_so,
435 (long)sub.rm_eo);
436 return(grump);
437 }
438
439 /* check for no match */
440 if (sub.rm_so == -1 && should == NULL)
441 return(NULL);
442 if (sub.rm_so == -1)
443 return("did not match");
444
445 /* check for in range */
446 if (sub.rm_eo > strlen(str)) {
447 snprintf(grump, sizeof grump,
448 "start %ld end %ld, past end of string",
449 (long)sub.rm_so, (long)sub.rm_eo);
450 return(grump);
451 }
452
453 len = (int)(sub.rm_eo - sub.rm_so);
454 shlen = (int)strlen(should);
455 p = str + sub.rm_so;
456
457 /* check for not supposed to match */
458 if (should == NULL) {
459 snprintf(grump, sizeof grump, "matched `%.*s'", len, p);
460 return(grump);
461 }
462
463 /* check for wrong match */
464 if (len != shlen || strncmp(p, should, (size_t)shlen) != 0) {
465 snprintf(grump, sizeof grump, "matched `%.*s' instead", len, p);
466 return(grump);
467 }
468 if (shlen > 0)
469 return(NULL);
470
471 /* check null match in right place */
472 if (at == NULL)
473 return(NULL);
474 shlen = strlen(at);
475 if (shlen == 0)
476 shlen = 1; /* force check for end-of-string */
477 if (strncmp(p, at, shlen) != 0) {
478 snprintf(grump, sizeof grump, "matched null at `%.20s'", p);
479 return(grump);
480 }
481 return(NULL);
482}
483
484/*
485 - eprint - convert error number to name
486 == static char *eprint(int err);
487 */
488static char *
489eprint(err)
490int err;
491{
492 static char epbuf[100];
493 size_t len;
494
495 len = regerror(REG_ITOA|err, (regex_t *)NULL, epbuf, sizeof(epbuf));
496 assert(len <= sizeof(epbuf));
497 return(epbuf);
498}
499
500/*
501 - efind - convert error name to number
502 == static int efind(char *name);
503 */
504static int
505efind(name)
506char *name;
507{
508 static char efbuf[100];
509 regex_t re;
510
511 snprintf(efbuf, sizeof efbuf, "REG_%s", name);
512 assert(strlen(efbuf) < sizeof(efbuf));
513 re.re_endp = efbuf;
514 (void) regerror(REG_ATOI, &re, efbuf, sizeof(efbuf));
515 return(atoi(efbuf));
516}
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