-#ifdef USE_LIBPCRE1
-static void compile_pcre1_regexp(struct grep_pat *p, const struct grep_opt *opt)
-{
- const char *error;
- int erroffset;
- int options = PCRE_MULTILINE;
- int study_options = 0;
-
- if (opt->ignore_case) {
- if (!opt->ignore_locale && has_non_ascii(p->pattern))
- p->pcre1_tables = pcre_maketables();
- options |= PCRE_CASELESS;
- }
- if (!opt->ignore_locale && is_utf8_locale() && has_non_ascii(p->pattern))
- options |= PCRE_UTF8;
-
- p->pcre1_regexp = pcre_compile(p->pattern, options, &error, &erroffset,
- p->pcre1_tables);
- if (!p->pcre1_regexp)
- compile_regexp_failed(p, error);
-
-#if defined(PCRE_CONFIG_JIT) && !defined(NO_LIBPCRE1_JIT)
- pcre_config(PCRE_CONFIG_JIT, &p->pcre1_jit_on);
- if (opt->debug)
- fprintf(stderr, "pcre1_jit_on=%d\n", p->pcre1_jit_on);
-
- if (p->pcre1_jit_on)
- study_options = PCRE_STUDY_JIT_COMPILE;
-#endif
-
- p->pcre1_extra_info = pcre_study(p->pcre1_regexp, study_options, &error);
- if (!p->pcre1_extra_info && error)
- die("%s", error);
-}
-
-static int pcre1match(struct grep_pat *p, const char *line, const char *eol,
- regmatch_t *match, int eflags)
-{
- int ovector[30], ret, flags = PCRE_NO_UTF8_CHECK;
-
- if (eflags & REG_NOTBOL)
- flags |= PCRE_NOTBOL;
-
- ret = pcre_exec(p->pcre1_regexp, p->pcre1_extra_info, line,
- eol - line, 0, flags, ovector,
- ARRAY_SIZE(ovector));
-
- if (ret < 0 && ret != PCRE_ERROR_NOMATCH)
- die("pcre_exec failed with error code %d", ret);
- if (ret > 0) {
- ret = 0;
- match->rm_so = ovector[0];
- match->rm_eo = ovector[1];
- }
-
- return ret;
-}
-
-static void free_pcre1_regexp(struct grep_pat *p)
-{
- pcre_free(p->pcre1_regexp);
-#ifdef PCRE_CONFIG_JIT
- if (p->pcre1_jit_on)
- pcre_free_study(p->pcre1_extra_info);
- else
-#endif
- pcre_free(p->pcre1_extra_info);
- pcre_free((void *)p->pcre1_tables);
-}
-#else /* !USE_LIBPCRE1 */
-static void compile_pcre1_regexp(struct grep_pat *p, const struct grep_opt *opt)
-{
- die("cannot use Perl-compatible regexes when not compiled with USE_LIBPCRE");
-}
-
-static int pcre1match(struct grep_pat *p, const char *line, const char *eol,
- regmatch_t *match, int eflags)
-{
- return 1;
-}
-
-static void free_pcre1_regexp(struct grep_pat *p)
-{
-}
-#endif /* !USE_LIBPCRE1 */
-