+/*
+ * This file is part of DisOrder
+ * Copyright (C) 2017 Mark Wooding
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+/** @file lib/regexp.c
+ * @brief Regular expressions
+ */
+#include "common.h"
+
+#include "regexp.h"
+#include "mem.h"
+
+void regexp_setup(void)
+{
+ pcre_malloc = xmalloc;
+ pcre_free = xfree;
+}
+
+regexp *regexp_compile(const char *pat, unsigned f,
+ char *errbuf, size_t errlen, size_t *erroff_out)
+{
+ char *p;
+ const char *e;
+ int erroff;
+ regexp *re;
+ size_t i;
+
+ re = pcre_compile(pat, f, &e, &erroff, 0);
+ if(!re) {
+ *erroff_out = erroff;
+ for(p = errbuf, i = errlen - 1; i && *e; i--) *p++ = *e++;
+ *p = 0;
+ }
+ return re;
+}
+
+int regexp_match(const regexp *re, const char *s, size_t n, unsigned f,
+ size_t *ov, size_t on)
+{
+ int rc;
+ int *myov;
+ size_t i;
+
+ myov = xmalloc(on*sizeof(*myov));
+ rc = pcre_exec(re, 0, s, n, 0, f, myov, on);
+ for(i = 0; i < on; i++) ov[i] = myov[i];
+ xfree(myov);
+ return rc;
+}
+
+void regexp_free(regexp *re)
+ { pcre_free(re); }
+
+/*
+Local Variables:
+c-basic-offset:2
+comment-column:40
+End:
+*/
~mdw / disorder / commitdiff