1 files changed, 66 insertions, 0 deletions
diff --git a/lib/wordfnmatch.c b/lib/wordfnmatch.c
new file mode 100644
index 0000000..b073a88
--- /dev/null
+++ b/lib/wordfnmatch.c
@@ -0,0 +1,66 @@
+/*
+ * wordfnmatch.c: fnmatch on word boundaries
+ *
+ * Copyright (C) 2001, 2003, 2008 Colin Watson.
+ *
+ * This file is part of man-db.
+ *
+ * man-db 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * man-db 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 man-db; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif /* HAVE_CONFIG_H */
+
+#include <stdbool.h>
+#include <stdlib.h>
+#include <ctype.h>
+
+#include "fnmatch.h"
+#include "xalloc.h"
+
+#include "manconfig.h"
+
+#include "wordfnmatch.h"
+
+/* TODO: How on earth do we allow multiple-word matches without
+ * reimplementing fnmatch()?
+ */
+bool word_fnmatch (const char *pattern, const char *string)
+{
+	char *dupstring = xstrdup (string);
+	const char *begin = dupstring;
+	char *p;
+
+	for (p = dupstring; *p; p++) {
+		if (CTYPE (isalpha, *p) || *p == '_')
+			continue;
+
+		/* Check for multiple non-word characters in a row. */
+		if (p <= begin + 1)
+			begin++;
+		else {
+			*p = '\0';
+			if (fnmatch (pattern, begin, FNM_CASEFOLD) == 0) {
+				free (dupstring);
+				return true;
+			}
+			begin = p + 1;
+		}
+	}
+
+	free (dupstring);
+	return false;
+}