/[pcre]/code/tags/pcre-2.08/pcretest.c
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Contents of /code/tags/pcre-2.08/pcretest.c

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Revision 29 - (hide annotations) (download)
Sat Feb 24 21:38:53 2007 UTC (7 years, 6 months ago) by nigel
Original Path: code/trunk/pcretest.c
File MIME type: text/plain
File size: 23657 byte(s)
Load pcre-2.03 into code/trunk.

1 nigel 3 /*************************************************
2     * PCRE testing program *
3     *************************************************/
4    
5     #include <ctype.h>
6     #include <stdio.h>
7     #include <string.h>
8     #include <stdlib.h>
9     #include <time.h>
10 nigel 25 #include <locale.h>
11 nigel 3
12     /* Use the internal info for displaying the results of pcre_study(). */
13    
14     #include "internal.h"
15     #include "pcreposix.h"
16    
17     #ifndef CLOCKS_PER_SEC
18     #ifdef CLK_TCK
19     #define CLOCKS_PER_SEC CLK_TCK
20     #else
21     #define CLOCKS_PER_SEC 100
22     #endif
23     #endif
24    
25 nigel 27 #define LOOPREPEAT 20000
26 nigel 3
27 nigel 23
28 nigel 3 static FILE *outfile;
29     static int log_store = 0;
30    
31    
32    
33     /* Debugging function to print the internal form of the regex. This is the same
34     code as contained in pcre.c under the DEBUG macro. */
35    
36 nigel 7 static const char *OP_names[] = {
37     "End", "\\A", "\\B", "\\b", "\\D", "\\d",
38 nigel 23 "\\S", "\\s", "\\W", "\\w", "\\Z", "\\z",
39     "Opt", "^", "$", "Any", "chars", "not",
40 nigel 3 "*", "*?", "+", "+?", "?", "??", "{", "{", "{",
41     "*", "*?", "+", "+?", "?", "??", "{", "{", "{",
42     "*", "*?", "+", "+?", "?", "??", "{", "{", "{",
43     "*", "*?", "+", "+?", "?", "??", "{", "{",
44 nigel 23 "class", "Ref",
45     "Alt", "Ket", "KetRmax", "KetRmin", "Assert", "Assert not",
46     "AssertB", "AssertB not", "Reverse", "Once", "Cond", "Cref",
47 nigel 3 "Brazero", "Braminzero", "Bra"
48     };
49    
50    
51 nigel 23 static void print_internals(pcre *re, FILE *outfile)
52 nigel 3 {
53     unsigned char *code = ((real_pcre *)re)->code;
54    
55 nigel 23 fprintf(outfile, "------------------------------------------------------------------\n");
56 nigel 3
57     for(;;)
58     {
59     int c;
60     int charlength;
61    
62 nigel 23 fprintf(outfile, "%3d ", (int)(code - ((real_pcre *)re)->code));
63 nigel 3
64     if (*code >= OP_BRA)
65     {
66 nigel 23 fprintf(outfile, "%3d Bra %d", (code[1] << 8) + code[2], *code - OP_BRA);
67 nigel 3 code += 2;
68     }
69    
70     else switch(*code)
71     {
72     case OP_END:
73 nigel 23 fprintf(outfile, " %s\n", OP_names[*code]);
74     fprintf(outfile, "------------------------------------------------------------------\n");
75 nigel 3 return;
76    
77 nigel 23 case OP_OPT:
78     fprintf(outfile, " %.2x %s", code[1], OP_names[*code]);
79     code++;
80     break;
81    
82     case OP_COND:
83     fprintf(outfile, "%3d Cond", (code[1] << 8) + code[2]);
84     code += 2;
85     break;
86    
87     case OP_CREF:
88     fprintf(outfile, " %.2d %s", code[1], OP_names[*code]);
89     code++;
90     break;
91    
92 nigel 3 case OP_CHARS:
93     charlength = *(++code);
94 nigel 23 fprintf(outfile, "%3d ", charlength);
95 nigel 3 while (charlength-- > 0)
96 nigel 23 if (isprint(c = *(++code))) fprintf(outfile, "%c", c);
97     else fprintf(outfile, "\\x%02x", c);
98 nigel 3 break;
99    
100     case OP_KETRMAX:
101     case OP_KETRMIN:
102     case OP_ALT:
103     case OP_KET:
104     case OP_ASSERT:
105     case OP_ASSERT_NOT:
106 nigel 23 case OP_ASSERTBACK:
107     case OP_ASSERTBACK_NOT:
108 nigel 3 case OP_ONCE:
109 nigel 23 fprintf(outfile, "%3d %s", (code[1] << 8) + code[2], OP_names[*code]);
110 nigel 3 code += 2;
111     break;
112    
113 nigel 23 case OP_REVERSE:
114     fprintf(outfile, "%3d %s", (code[1] << 8) + code[2], OP_names[*code]);
115     code += 2;
116     break;
117    
118 nigel 3 case OP_STAR:
119     case OP_MINSTAR:
120     case OP_PLUS:
121     case OP_MINPLUS:
122     case OP_QUERY:
123     case OP_MINQUERY:
124     case OP_TYPESTAR:
125     case OP_TYPEMINSTAR:
126     case OP_TYPEPLUS:
127     case OP_TYPEMINPLUS:
128     case OP_TYPEQUERY:
129     case OP_TYPEMINQUERY:
130     if (*code >= OP_TYPESTAR)
131 nigel 23 fprintf(outfile, " %s", OP_names[code[1]]);
132     else if (isprint(c = code[1])) fprintf(outfile, " %c", c);
133     else fprintf(outfile, " \\x%02x", c);
134     fprintf(outfile, "%s", OP_names[*code++]);
135 nigel 3 break;
136    
137     case OP_EXACT:
138     case OP_UPTO:
139     case OP_MINUPTO:
140 nigel 23 if (isprint(c = code[3])) fprintf(outfile, " %c{", c);
141     else fprintf(outfile, " \\x%02x{", c);
142     if (*code != OP_EXACT) fprintf(outfile, ",");
143     fprintf(outfile, "%d}", (code[1] << 8) + code[2]);
144     if (*code == OP_MINUPTO) fprintf(outfile, "?");
145 nigel 3 code += 3;
146     break;
147    
148     case OP_TYPEEXACT:
149     case OP_TYPEUPTO:
150     case OP_TYPEMINUPTO:
151 nigel 23 fprintf(outfile, " %s{", OP_names[code[3]]);
152     if (*code != OP_TYPEEXACT) fprintf(outfile, "0,");
153     fprintf(outfile, "%d}", (code[1] << 8) + code[2]);
154     if (*code == OP_TYPEMINUPTO) fprintf(outfile, "?");
155 nigel 3 code += 3;
156     break;
157    
158     case OP_NOT:
159 nigel 23 if (isprint(c = *(++code))) fprintf(outfile, " [^%c]", c);
160     else fprintf(outfile, " [^\\x%02x]", c);
161 nigel 3 break;
162    
163     case OP_NOTSTAR:
164     case OP_NOTMINSTAR:
165     case OP_NOTPLUS:
166     case OP_NOTMINPLUS:
167     case OP_NOTQUERY:
168     case OP_NOTMINQUERY:
169 nigel 23 if (isprint(c = code[1])) fprintf(outfile, " [^%c]", c);
170     else fprintf(outfile, " [^\\x%02x]", c);
171     fprintf(outfile, "%s", OP_names[*code++]);
172 nigel 3 break;
173    
174     case OP_NOTEXACT:
175     case OP_NOTUPTO:
176     case OP_NOTMINUPTO:
177 nigel 23 if (isprint(c = code[3])) fprintf(outfile, " [^%c]{", c);
178     else fprintf(outfile, " [^\\x%02x]{", c);
179     if (*code != OP_NOTEXACT) fprintf(outfile, ",");
180     fprintf(outfile, "%d}", (code[1] << 8) + code[2]);
181     if (*code == OP_NOTMINUPTO) fprintf(outfile, "?");
182 nigel 3 code += 3;
183     break;
184    
185     case OP_REF:
186 nigel 23 fprintf(outfile, " \\%d", *(++code));
187 nigel 9 code++;
188     goto CLASS_REF_REPEAT;
189 nigel 3
190     case OP_CLASS:
191     {
192     int i, min, max;
193 nigel 23 code++;
194     fprintf(outfile, " [");
195 nigel 3
196     for (i = 0; i < 256; i++)
197     {
198     if ((code[i/8] & (1 << (i&7))) != 0)
199     {
200     int j;
201     for (j = i+1; j < 256; j++)
202     if ((code[j/8] & (1 << (j&7))) == 0) break;
203 nigel 23 if (i == '-' || i == ']') fprintf(outfile, "\\");
204     if (isprint(i)) fprintf(outfile, "%c", i); else fprintf(outfile, "\\x%02x", i);
205 nigel 3 if (--j > i)
206     {
207 nigel 23 fprintf(outfile, "-");
208     if (j == '-' || j == ']') fprintf(outfile, "\\");
209     if (isprint(j)) fprintf(outfile, "%c", j); else fprintf(outfile, "\\x%02x", j);
210 nigel 3 }
211     i = j;
212     }
213     }
214 nigel 23 fprintf(outfile, "]");
215 nigel 3 code += 32;
216    
217 nigel 9 CLASS_REF_REPEAT:
218    
219 nigel 3 switch(*code)
220     {
221     case OP_CRSTAR:
222     case OP_CRMINSTAR:
223     case OP_CRPLUS:
224     case OP_CRMINPLUS:
225     case OP_CRQUERY:
226     case OP_CRMINQUERY:
227 nigel 23 fprintf(outfile, "%s", OP_names[*code]);
228 nigel 3 break;
229    
230     case OP_CRRANGE:
231     case OP_CRMINRANGE:
232     min = (code[1] << 8) + code[2];
233     max = (code[3] << 8) + code[4];
234 nigel 23 if (max == 0) fprintf(outfile, "{%d,}", min);
235     else fprintf(outfile, "{%d,%d}", min, max);
236     if (*code == OP_CRMINRANGE) fprintf(outfile, "?");
237 nigel 3 code += 4;
238     break;
239    
240     default:
241     code--;
242     }
243     }
244     break;
245    
246     /* Anything else is just a one-node item */
247    
248     default:
249 nigel 23 fprintf(outfile, " %s", OP_names[*code]);
250 nigel 3 break;
251     }
252    
253     code++;
254 nigel 23 fprintf(outfile, "\n");
255 nigel 3 }
256     }
257    
258    
259    
260     /* Character string printing function. */
261    
262     static void pchars(unsigned char *p, int length)
263     {
264     int c;
265     while (length-- > 0)
266     if (isprint(c = *(p++))) fprintf(outfile, "%c", c);
267     else fprintf(outfile, "\\x%02x", c);
268     }
269    
270    
271    
272     /* Alternative malloc function, to test functionality and show the size of the
273     compiled re. */
274    
275     static void *new_malloc(size_t size)
276     {
277     if (log_store) fprintf(outfile, "Store size request: %d\n", (int)size);
278     return malloc(size);
279     }
280    
281    
282    
283     /* Read lines from named file or stdin and write to named file or stdout; lines
284     consist of a regular expression, in delimiters and optionally followed by
285     options, followed by a set of test data, terminated by an empty line. */
286    
287     int main(int argc, char **argv)
288     {
289     FILE *infile = stdin;
290     int options = 0;
291     int study_options = 0;
292     int op = 1;
293     int timeit = 0;
294     int showinfo = 0;
295     int posix = 0;
296     int debug = 0;
297 nigel 11 int done = 0;
298 nigel 3 unsigned char buffer[30000];
299     unsigned char dbuffer[1024];
300    
301     /* Static so that new_malloc can use it. */
302    
303     outfile = stdout;
304    
305     /* Scan options */
306    
307     while (argc > 1 && argv[op][0] == '-')
308     {
309     if (strcmp(argv[op], "-s") == 0) log_store = 1;
310     else if (strcmp(argv[op], "-t") == 0) timeit = 1;
311     else if (strcmp(argv[op], "-i") == 0) showinfo = 1;
312     else if (strcmp(argv[op], "-d") == 0) showinfo = debug = 1;
313     else if (strcmp(argv[op], "-p") == 0) posix = 1;
314     else
315     {
316     printf("*** Unknown option %s\n", argv[op]);
317 nigel 25 printf("Usage: pcretest [-d] [-i] [-p] [-s] [-t] [<input> [<output>]]\n");
318     printf(" -d debug: show compiled code; implies -i\n"
319     " -i show information about compiled pattern\n"
320     " -p use POSIX interface\n"
321     " -s output store information\n"
322     " -t time compilation and execution\n");
323 nigel 3 return 1;
324     }
325     op++;
326     argc--;
327     }
328    
329     /* Sort out the input and output files */
330    
331     if (argc > 1)
332     {
333     infile = fopen(argv[op], "r");
334     if (infile == NULL)
335     {
336     printf("** Failed to open %s\n", argv[op]);
337     return 1;
338     }
339     }
340    
341     if (argc > 2)
342     {
343     outfile = fopen(argv[op+1], "w");
344     if (outfile == NULL)
345     {
346     printf("** Failed to open %s\n", argv[op+1]);
347     return 1;
348     }
349     }
350    
351     /* Set alternative malloc function */
352    
353     pcre_malloc = new_malloc;
354    
355 nigel 23 /* Heading line, then prompt for first regex if stdin */
356 nigel 3
357     fprintf(outfile, "PCRE version %s\n\n", pcre_version());
358    
359     /* Main loop */
360    
361 nigel 11 while (!done)
362 nigel 3 {
363     pcre *re = NULL;
364     pcre_extra *extra = NULL;
365     regex_t preg;
366 nigel 7 const char *error;
367 nigel 25 unsigned char *p, *pp, *ppp;
368     unsigned const char *tables = NULL;
369 nigel 3 int do_study = 0;
370 nigel 25 int do_debug = debug;
371     int do_showinfo = showinfo;
372 nigel 3 int do_posix = 0;
373     int erroroffset, len, delimiter;
374    
375     if (infile == stdin) printf(" re> ");
376     if (fgets((char *)buffer, sizeof(buffer), infile) == NULL) break;
377 nigel 23 if (infile != stdin) fprintf(outfile, "%s", (char *)buffer);
378 nigel 3
379     p = buffer;
380     while (isspace(*p)) p++;
381     if (*p == 0) continue;
382    
383     /* Get the delimiter and seek the end of the pattern; if is isn't
384     complete, read more. */
385    
386     delimiter = *p++;
387    
388 nigel 29 if (isalnum(delimiter) || delimiter == '\\')
389 nigel 3 {
390 nigel 29 fprintf(outfile, "** Delimiter must not be alphameric or \\\n");
391 nigel 3 goto SKIP_DATA;
392     }
393    
394     pp = p;
395    
396     for(;;)
397     {
398 nigel 29 while (*pp != 0)
399     {
400     if (*pp == '\\' && pp[1] != 0) pp++;
401     else if (*pp == delimiter) break;
402     pp++;
403     }
404 nigel 3 if (*pp != 0) break;
405    
406     len = sizeof(buffer) - (pp - buffer);
407     if (len < 256)
408     {
409     fprintf(outfile, "** Expression too long - missing delimiter?\n");
410     goto SKIP_DATA;
411     }
412    
413     if (infile == stdin) printf(" > ");
414     if (fgets((char *)pp, len, infile) == NULL)
415     {
416     fprintf(outfile, "** Unexpected EOF\n");
417 nigel 11 done = 1;
418     goto CONTINUE;
419 nigel 3 }
420 nigel 23 if (infile != stdin) fprintf(outfile, "%s", (char *)pp);
421 nigel 3 }
422    
423 nigel 29 /* If the first character after the delimiter is backslash, make
424     the pattern end with backslash. This is purely to provide a way
425     of testing for the error message when a pattern ends with backslash. */
426    
427     if (pp[1] == '\\') *pp++ = '\\';
428    
429 nigel 3 /* Terminate the pattern at the delimiter */
430    
431     *pp++ = 0;
432    
433     /* Look for options after final delimiter */
434    
435     options = 0;
436     study_options = 0;
437     while (*pp != 0)
438     {
439     switch (*pp++)
440     {
441     case 'i': options |= PCRE_CASELESS; break;
442     case 'm': options |= PCRE_MULTILINE; break;
443     case 's': options |= PCRE_DOTALL; break;
444     case 'x': options |= PCRE_EXTENDED; break;
445 nigel 25
446 nigel 3 case 'A': options |= PCRE_ANCHORED; break;
447 nigel 25 case 'D': do_debug = do_showinfo = 1; break;
448 nigel 3 case 'E': options |= PCRE_DOLLAR_ENDONLY; break;
449 nigel 25 case 'I': do_showinfo = 1; break;
450 nigel 3 case 'P': do_posix = 1; break;
451     case 'S': do_study = 1; break;
452 nigel 19 case 'U': options |= PCRE_UNGREEDY; break;
453 nigel 3 case 'X': options |= PCRE_EXTRA; break;
454 nigel 25
455     case 'L':
456     ppp = pp;
457     while (*ppp != '\n' && *ppp != ' ') ppp++;
458     *ppp = 0;
459     if (setlocale(LC_CTYPE, (const char *)pp) == NULL)
460     {
461     fprintf(outfile, "** Failed to set locale \"%s\"\n", pp);
462     goto SKIP_DATA;
463     }
464     tables = pcre_maketables();
465     pp = ppp;
466     break;
467    
468 nigel 3 case '\n': case ' ': break;
469     default:
470     fprintf(outfile, "** Unknown option '%c'\n", pp[-1]);
471     goto SKIP_DATA;
472     }
473     }
474    
475 nigel 11 /* Handle compiling via the POSIX interface, which doesn't support the
476 nigel 25 timing, showing, or debugging options, nor the ability to pass over
477     local character tables. */
478 nigel 3
479     if (posix || do_posix)
480     {
481     int rc;
482     int cflags = 0;
483     if ((options & PCRE_CASELESS) != 0) cflags |= REG_ICASE;
484     if ((options & PCRE_MULTILINE) != 0) cflags |= REG_NEWLINE;
485     rc = regcomp(&preg, (char *)p, cflags);
486    
487     /* Compilation failed; go back for another re, skipping to blank line
488     if non-interactive. */
489    
490     if (rc != 0)
491     {
492     (void)regerror(rc, &preg, (char *)buffer, sizeof(buffer));
493     fprintf(outfile, "Failed: POSIX code %d: %s\n", rc, buffer);
494     goto SKIP_DATA;
495     }
496     }
497    
498     /* Handle compiling via the native interface */
499    
500     else
501     {
502     if (timeit)
503     {
504     register int i;
505     clock_t time_taken;
506     clock_t start_time = clock();
507 nigel 23 for (i = 0; i < LOOPREPEAT; i++)
508 nigel 3 {
509 nigel 25 re = pcre_compile((char *)p, options, &error, &erroroffset, tables);
510 nigel 3 if (re != NULL) free(re);
511     }
512     time_taken = clock() - start_time;
513 nigel 27 fprintf(outfile, "Compile time %.3f milliseconds\n",
514     ((double)time_taken * 1000.0) /
515     ((double)LOOPREPEAT * (double)CLOCKS_PER_SEC));
516 nigel 3 }
517    
518 nigel 25 re = pcre_compile((char *)p, options, &error, &erroroffset, tables);
519 nigel 3
520     /* Compilation failed; go back for another re, skipping to blank line
521     if non-interactive. */
522    
523     if (re == NULL)
524     {
525     fprintf(outfile, "Failed: %s at offset %d\n", error, erroroffset);
526     SKIP_DATA:
527     if (infile != stdin)
528     {
529     for (;;)
530     {
531     if (fgets((char *)buffer, sizeof(buffer), infile) == NULL)
532 nigel 11 {
533     done = 1;
534     goto CONTINUE;
535     }
536 nigel 3 len = (int)strlen((char *)buffer);
537     while (len > 0 && isspace(buffer[len-1])) len--;
538     if (len == 0) break;
539     }
540     fprintf(outfile, "\n");
541     }
542 nigel 25 goto CONTINUE;
543 nigel 3 }
544    
545     /* Compilation succeeded; print data if required */
546    
547 nigel 25 if (do_showinfo)
548 nigel 3 {
549     int first_char, count;
550    
551 nigel 25 if (do_debug) print_internals(re, outfile);
552 nigel 3
553     count = pcre_info(re, &options, &first_char);
554     if (count < 0) fprintf(outfile,
555     "Error %d while reading info\n", count);
556     else
557     {
558     fprintf(outfile, "Identifying subpattern count = %d\n", count);
559     if (options == 0) fprintf(outfile, "No options\n");
560 nigel 19 else fprintf(outfile, "Options:%s%s%s%s%s%s%s%s\n",
561 nigel 3 ((options & PCRE_ANCHORED) != 0)? " anchored" : "",
562     ((options & PCRE_CASELESS) != 0)? " caseless" : "",
563     ((options & PCRE_EXTENDED) != 0)? " extended" : "",
564     ((options & PCRE_MULTILINE) != 0)? " multiline" : "",
565     ((options & PCRE_DOTALL) != 0)? " dotall" : "",
566     ((options & PCRE_DOLLAR_ENDONLY) != 0)? " dollar_endonly" : "",
567 nigel 19 ((options & PCRE_EXTRA) != 0)? " extra" : "",
568     ((options & PCRE_UNGREEDY) != 0)? " ungreedy" : "");
569 nigel 3 if (first_char == -1)
570     {
571     fprintf(outfile, "First char at start or follows \\n\n");
572     }
573     else if (first_char < 0)
574     {
575     fprintf(outfile, "No first char\n");
576     }
577     else
578     {
579     if (isprint(first_char))
580     fprintf(outfile, "First char = \'%c\'\n", first_char);
581     else
582     fprintf(outfile, "First char = %d\n", first_char);
583     }
584     }
585     }
586    
587     /* If /S was present, study the regexp to generate additional info to
588     help with the matching. */
589    
590     if (do_study)
591     {
592     if (timeit)
593     {
594     register int i;
595     clock_t time_taken;
596     clock_t start_time = clock();
597 nigel 23 for (i = 0; i < LOOPREPEAT; i++)
598 nigel 3 extra = pcre_study(re, study_options, &error);
599     time_taken = clock() - start_time;
600     if (extra != NULL) free(extra);
601 nigel 27 fprintf(outfile, " Study time %.3f milliseconds\n",
602     ((double)time_taken * 1000.0)/
603     ((double)LOOPREPEAT * (double)CLOCKS_PER_SEC));
604 nigel 3 }
605    
606     extra = pcre_study(re, study_options, &error);
607     if (error != NULL)
608     fprintf(outfile, "Failed to study: %s\n", error);
609     else if (extra == NULL)
610     fprintf(outfile, "Study returned NULL\n");
611    
612     /* This looks at internal information. A bit kludgy to do it this
613     way, but it is useful for testing. */
614    
615 nigel 25 else if (do_showinfo)
616 nigel 3 {
617     real_pcre_extra *xx = (real_pcre_extra *)extra;
618     if ((xx->options & PCRE_STUDY_MAPPED) == 0)
619     fprintf(outfile, "No starting character set\n");
620     else
621     {
622     int i;
623     int c = 24;
624     fprintf(outfile, "Starting character set: ");
625     for (i = 0; i < 256; i++)
626     {
627     if ((xx->start_bits[i/8] & (1<<(i%8))) != 0)
628     {
629     if (c > 75)
630     {
631     fprintf(outfile, "\n ");
632     c = 2;
633     }
634     if (isprint(i) && i != ' ')
635     {
636     fprintf(outfile, "%c ", i);
637     c += 2;
638     }
639     else
640     {
641     fprintf(outfile, "\\x%02x ", i);
642     c += 5;
643     }
644     }
645     }
646     fprintf(outfile, "\n");
647     }
648     }
649     }
650     }
651    
652     /* Read data lines and test them */
653    
654     for (;;)
655     {
656 nigel 9 unsigned char *q;
657 nigel 3 int count, c;
658 nigel 29 int copystrings = 0;
659     int getstrings = 0;
660     int getlist = 0;
661 nigel 23 int offsets[45];
662 nigel 3 int size_offsets = sizeof(offsets)/sizeof(int);
663    
664     options = 0;
665    
666     if (infile == stdin) printf(" data> ");
667 nigel 11 if (fgets((char *)buffer, sizeof(buffer), infile) == NULL)
668     {
669     done = 1;
670     goto CONTINUE;
671     }
672 nigel 23 if (infile != stdin) fprintf(outfile, "%s", (char *)buffer);
673 nigel 3
674     len = (int)strlen((char *)buffer);
675     while (len > 0 && isspace(buffer[len-1])) len--;
676     buffer[len] = 0;
677     if (len == 0) break;
678    
679     p = buffer;
680     while (isspace(*p)) p++;
681    
682 nigel 9 q = dbuffer;
683 nigel 3 while ((c = *p++) != 0)
684     {
685     int i = 0;
686     int n = 0;
687     if (c == '\\') switch ((c = *p++))
688     {
689     case 'a': c = 7; break;
690     case 'b': c = '\b'; break;
691     case 'e': c = 27; break;
692     case 'f': c = '\f'; break;
693     case 'n': c = '\n'; break;
694     case 'r': c = '\r'; break;
695     case 't': c = '\t'; break;
696     case 'v': c = '\v'; break;
697    
698     case '0': case '1': case '2': case '3':
699     case '4': case '5': case '6': case '7':
700     c -= '0';
701     while (i++ < 2 && isdigit(*p) && *p != '8' && *p != '9')
702     c = c * 8 + *p++ - '0';
703     break;
704    
705     case 'x':
706     c = 0;
707     while (i++ < 2 && isxdigit(*p))
708     {
709     c = c * 16 + tolower(*p) - ((isdigit(*p))? '0' : 'W');
710     p++;
711     }
712     break;
713    
714     case 0: /* Allows for an empty line */
715     p--;
716     continue;
717    
718     case 'A': /* Option setting */
719     options |= PCRE_ANCHORED;
720     continue;
721    
722     case 'B':
723     options |= PCRE_NOTBOL;
724     continue;
725    
726 nigel 29 case 'C':
727     while(isdigit(*p)) n = n * 10 + *p++ - '0';
728     copystrings |= 1 << n;
729     continue;
730    
731     case 'G':
732     while(isdigit(*p)) n = n * 10 + *p++ - '0';
733     getstrings |= 1 << n;
734     continue;
735    
736     case 'L':
737     getlist = 1;
738     continue;
739    
740 nigel 3 case 'O':
741     while(isdigit(*p)) n = n * 10 + *p++ - '0';
742 nigel 9 if (n <= (int)(sizeof(offsets)/sizeof(int))) size_offsets = n;
743 nigel 3 continue;
744    
745     case 'Z':
746     options |= PCRE_NOTEOL;
747     continue;
748     }
749 nigel 9 *q++ = c;
750 nigel 3 }
751 nigel 9 *q = 0;
752     len = q - dbuffer;
753 nigel 3
754     /* Handle matching via the POSIX interface, which does not
755     support timing. */
756    
757     if (posix || do_posix)
758     {
759     int rc;
760     int eflags = 0;
761     regmatch_t pmatch[30];
762     if ((options & PCRE_NOTBOL) != 0) eflags |= REG_NOTBOL;
763     if ((options & PCRE_NOTEOL) != 0) eflags |= REG_NOTEOL;
764    
765     rc = regexec(&preg, (char *)dbuffer, sizeof(pmatch)/sizeof(regmatch_t),
766     pmatch, eflags);
767    
768     if (rc != 0)
769     {
770     (void)regerror(rc, &preg, (char *)buffer, sizeof(buffer));
771     fprintf(outfile, "No match: POSIX code %d: %s\n", rc, buffer);
772     }
773     else
774     {
775 nigel 7 size_t i;
776 nigel 3 for (i = 0; i < sizeof(pmatch)/sizeof(regmatch_t); i++)
777     {
778     if (pmatch[i].rm_so >= 0)
779     {
780 nigel 23 fprintf(outfile, "%2d: ", (int)i);
781 nigel 3 pchars(dbuffer + pmatch[i].rm_so,
782     pmatch[i].rm_eo - pmatch[i].rm_so);
783     fprintf(outfile, "\n");
784     }
785     }
786     }
787     }
788    
789     /* Handle matching via the native interface */
790    
791     else
792     {
793     if (timeit)
794     {
795     register int i;
796     clock_t time_taken;
797     clock_t start_time = clock();
798 nigel 27 for (i = 0; i < LOOPREPEAT; i++)
799 nigel 3 count = pcre_exec(re, extra, (char *)dbuffer, len, options, offsets,
800     size_offsets);
801     time_taken = clock() - start_time;
802 nigel 27 fprintf(outfile, "Execute time %.3f milliseconds\n",
803     ((double)time_taken * 1000.0)/
804     ((double)LOOPREPEAT * (double)CLOCKS_PER_SEC));
805 nigel 3 }
806    
807     count = pcre_exec(re, extra, (char *)dbuffer, len, options, offsets,
808     size_offsets);
809    
810     if (count == 0)
811     {
812     fprintf(outfile, "Matched, but too many substrings\n");
813 nigel 23 count = size_offsets/3;
814 nigel 3 }
815    
816     if (count >= 0)
817     {
818     int i;
819 nigel 29 for (i = 0; i < count * 2; i += 2)
820 nigel 3 {
821     if (offsets[i] < 0)
822     fprintf(outfile, "%2d: <unset>\n", i/2);
823     else
824     {
825     fprintf(outfile, "%2d: ", i/2);
826     pchars(dbuffer + offsets[i], offsets[i+1] - offsets[i]);
827     fprintf(outfile, "\n");
828     }
829     }
830 nigel 29
831     for (i = 0; i < 32; i++)
832     {
833     if ((copystrings & (1 << i)) != 0)
834     {
835     char buffer[16];
836     int rc = pcre_copy_substring((char *)dbuffer, offsets, count,
837     i, buffer, sizeof(buffer));
838     if (rc < 0)
839     fprintf(outfile, "copy substring %d failed %d\n", i, rc);
840     else
841     fprintf(outfile, "%2dC %s (%d)\n", i, buffer, rc);
842     }
843     }
844    
845     for (i = 0; i < 32; i++)
846     {
847     if ((getstrings & (1 << i)) != 0)
848     {
849     const char *substring;
850     int rc = pcre_get_substring((char *)dbuffer, offsets, count,
851     i, &substring);
852     if (rc < 0)
853     fprintf(outfile, "get substring %d failed %d\n", i, rc);
854     else
855     {
856     fprintf(outfile, "%2dG %s (%d)\n", i, substring, rc);
857     free((void *)substring);
858     }
859     }
860     }
861    
862     if (getlist)
863     {
864     const char **stringlist;
865     int rc = pcre_get_substring_list((char *)dbuffer, offsets, count,
866     &stringlist);
867     if (rc < 0)
868     fprintf(outfile, "get substring list failed %d\n", rc);
869     else
870     {
871     for (i = 0; i < count; i++)
872     fprintf(outfile, "%2dL %s\n", i, stringlist[i]);
873     if (stringlist[i] != NULL)
874     fprintf(outfile, "string list not terminated by NULL\n");
875     free((void *)stringlist);
876     }
877     }
878    
879 nigel 3 }
880     else
881     {
882     if (count == -1) fprintf(outfile, "No match\n");
883     else fprintf(outfile, "Error %d\n", count);
884     }
885     }
886     }
887    
888 nigel 11 CONTINUE:
889 nigel 3 if (posix || do_posix) regfree(&preg);
890     if (re != NULL) free(re);
891     if (extra != NULL) free(extra);
892 nigel 25 if (tables != NULL)
893     {
894     free((void *)tables);
895     setlocale(LC_CTYPE, "C");
896     }
897 nigel 3 }
898    
899     fprintf(outfile, "\n");
900     return 0;
901     }
902    
903     /* End */

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