1 files changed, 86 insertions, 0 deletions
diff --git a/src/core/simple-regex.h b/src/core/simple-regex.h
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+/*
+ * simple_regex.h
+ *
+ * Simle regex library.
+ *
+ * Copyright (C) 2004,2005 Martin Schlemmer <azarah@nosferatu.za.org>
+ *
+ *
+ *      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 version 2 of the License.
+ *
+ *      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, write to the Free Software Foundation, Inc.,
+ *      675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * $Header$
+ */
+
+#ifndef _SIMPLE_REGEX_H
+#define _SIMPLE_REGEX_H
+
+#define REGEX_NO_MATCH 0	/* We have no match */
+#define REGEX_PARTIAL_MATCH 1	/* Some of the string matches the regex */
+#define REGEX_FULL_MATCH 2	/* The whole string matches the regex */
+
+/* Macro to fill in .data and .regex */
+#define FILL_REGEX_DATA(_regex_data, _string, _regex) \
+	do { \
+		_regex_data.data = _string; \
+		_regex_data.regex = _regex; \
+	} while (0)
+
+/* Fill in _regex_data with _data and _regex, on failure goto _error */
+#define DO_REGEX(_regex_data, _data, _regex, _error) \
+	do { \
+		FILL_REGEX_DATA(_regex_data, _data, _regex); \
+		if (-1 == match(&_regex_data)) { \
+			DBG_MSG("Could not do regex match!\n"); \
+			goto _error; \
+		} \
+	} while (0)
+
+/* Evaluate to true if we have some kind of match */
+#define REGEX_MATCH(_regex_data) \
+	((REGEX_FULL_MATCH == _regex_data.match) || \
+	 (REGEX_PARTIAL_MATCH == _regex_data.match))
+
+/* Same as above, but for use when _regex_data is a pointer */
+#define REGEX_MATCH_P(_regex_data) \
+	((REGEX_FULL_MATCH == _regex_data->match) || \
+	 (REGEX_PARTIAL_MATCH == _regex_data->match))
+
+typedef struct {
+	char *data;	/* String to perform regex operation on */
+	char *regex;	/* String containing regex to use */
+	int match;	/* Will be set if there was a match.  Check
+			 * REGEX_*_MATCH above for possible values */
+	char *where;	/* Pointer to where match starts in data */
+	size_t count;	/* Count characters from data matched by regex */
+	size_t r_count;	/* Count characters of regex used for match.  This
+			 * should normally be the lenght of regex, but might
+			 * not be for some internal functions ... */
+} regex_data_t;
+
+/*
+ * Return:
+ *
+ *  0		- There was no error.  If there was a match, regex_data->match
+ *  		- will be > 0 (this is the definitive check - if not true, the
+ *  		- other values of the struct may be bogus), regex_data->count
+ *  		- will be the amount of data that was matched (might be 0 for
+ *  		- some wildcards), and regex_data->r_count will be > 0.
+ *
+ *  -1		- An error occured.  Check errno for more info.
+ *
+ */
+int match(regex_data_t *regex_data);
+
+#endif /* _SIMPLE_REGEX_H */
+