src/test3.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include <unistd.h>
   5
   6 #include "libre9/re9.h"
   7
   8
   9 static const char text[] = "test\0for zero";
  10
  11
  12 static void dump_matches (const char *str, const re9_sub_t *rs, int ms) {
  13   for (int c = 0; c < 10; ++c) {
  14     if (rs[c].sp != NULL && rs[c].ep != NULL) {
  15       fprintf(stdout, " %d:(%d,%d) <", c, rs[c].sp-str, rs[c].ep-str);
  16       fwrite(rs[c].sp, rs[c].ep-rs[c].sp, 1, stdout);
  17       fputc('>', stdout);
  18     }
  19   }
  20   fputc('\n', stdout);
  21 }
  22
  23
  24 int main (int argc, char *argv[]) {
  25   re9_sub_t rs[10];
  26   re9_prog_t *p0, *p1, *p2;
  27   const char *errmsg;
  28   /* */
  29   p0 = re9_compile("t\\zfor", RE9_FLAG_NONUTF8, &errmsg);
  30   if (p0 == NULL) { fprintf(stderr, "FATAL: invalid regexp: %s\n", errmsg); exit(2); }
  31   p1 = re9_compile("\\zfor", RE9_FLAG_NONUTF8, &errmsg);
  32   if (p1 == NULL) { fprintf(stderr, "FATAL: invalid regexp: %s\n", errmsg); exit(2); }
  33   p2 = re9_compile("[a\\z]for", RE9_FLAG_NONUTF8, &errmsg);
  34   if (p1 == NULL) { fprintf(stderr, "FATAL: invalid regexp: %s\n", errmsg); exit(2); }
  35   /* */
  36   printf("=============================== (%u)\n", sizeof(text));
  37   rs[0].sp = text;
  38   rs[0].ep = text+sizeof(text);
  39   if (re9_execute(p0, RE9_FLAG_NONUTF8|RE9_FLAG_MT0_RANGE, text, rs, 10) > 0) dump_matches(text, rs, 10);
  40   printf("=============================== (%u)\n", sizeof(text));
  41   rs[0].sp = text;
  42   rs[0].ep = text+sizeof(text);
  43   if (re9_execute(p1, RE9_FLAG_NONUTF8|RE9_FLAG_MT0_RANGE, text, rs, 10) > 0) dump_matches(text, rs, 10);
  44   printf("=============================== (%u)\n", sizeof(text));
  45   rs[0].sp = text;
  46   rs[0].ep = text+sizeof(text);
  47   if (re9_execute(p2, RE9_FLAG_NONUTF8|RE9_FLAG_MT0_RANGE, text, rs, 10) > 0) dump_matches(text, rs, 10);
  48   /* */
  49   re9_free(p2);
  50   re9_free(p1);
  51   re9_free(p0);
  52   /* */
  53   return 0;
  54 }