static int utf8_getchars(char *buf, int c) { #ifdef USE_UTF8 return utf8_fromunicode(buf, c); #else *buf = c; return 1; #endif }
/* - regdump - dump a regexp onto stdout in vaguely comprehensible form */ static void regdump(regex_t *preg) { int s; int op = EXACTLY; /* Arbitrary non-END op. */ int next; char buf[4]; int i; for (i = 1; i < preg->p; i++) { printf("%02x ", preg->program[i]); if (i % 16 == 15) { printf("\n"); } } printf("\n"); s = 1; while (op != END && s < preg->p) { /* While that wasn't END last time... */ op = OP(preg, s); printf("%3d: %s", s, regprop(op)); /* Where, what. */ next = regnext(preg, s); if (next == 0) /* Next ptr. */ printf("(0)"); else printf("(%d)", next); s += 2; if (op == REP || op == REPMIN || op == REPX || op == REPXMIN) { int max = preg->program[s]; int min = preg->program[s + 1]; if (max == 65535) { printf("{%d,*}", min); } else { printf("{%d,%d}", min, max); } printf(" %d", preg->program[s + 2]); s += 3; } else if (op == ANYOF || op == ANYBUT) { /* set of ranges */ while (preg->program[s]) { int len = preg->program[s++]; int first = preg->program[s++]; buf[utf8_fromunicode(buf, first)] = 0; printf("%s", buf); if (len > 1) { buf[utf8_fromunicode(buf, first + len - 1)] = 0; printf("-%s", buf); } } s++; } else if (op == EXACTLY) { /* Literal string, where present. */ while (preg->program[s]) { buf[utf8_fromunicode(buf, preg->program[s])] = 0; printf("%s", buf); s++; } s++; } putchar('\n'); } if (op == END) { /* Header fields of interest. */ if (preg->regstart) { buf[utf8_fromunicode(buf, preg->regstart)] = 0; printf("start '%s' ", buf); } if (preg->reganch) printf("anchored "); if (preg->regmust != 0) { int i; printf("must have:"); for (i = 0; i < preg->regmlen; i++) { putchar(preg->program[preg->regmust + i]); } putchar('\n'); } } printf("\n"); }