Concentrate knowledge about the `pcre' API in one place.

[disorder] / lib / regexp.h

diff --git a/lib/regexp.h b/lib/regexp.h
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+/*
+ * 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.h
+ * @brief Regular expressions
+ */
+#ifndef REGEXP_H
+#define REGEXP_H
+
+#if defined(HAVE_PCRE_H)
+# include <pcre.h>
+  typedef pcre regexp;
+# define RXF_CASELESS PCRE_CASELESS
+# define RXERR_NOMATCH PCRE_ERROR_NOMATCH
+#else
+# error "no supported regular expression library found"
+#endif
+
+void regexp_setup(void);
+
+#define RXCERR_LEN 128
+regexp *regexp_compile(const char *pat, unsigned f,
+                      char *errbuf, size_t errlen, size_t *erroff_out);
+
+int regexp_match(const regexp *re, const char *s, size_t n, unsigned f,
+                size_t *ov, size_t on);
+
+void regexp_free(regexp *re);
+
+#endif /* REGEXP_H */
+
+/*
+Local Variables:
+c-basic-offset:2
+comment-column:40
+End:
+*/