New upstream version 3.1.1

include/n2n_regex.h

@@ -0,0 +1,76 @@
+/**
+ * (C) 2007-22 - ntop.org and contributors
+ *
+ * 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 see <http://www.gnu.org/licenses/>
+ *
+ */
+
+// taken from https://github.com/kokke/tiny-regex-c
+// under Unlicense as of August 4, 2020
+
+/*
+ *
+ * Mini regex-module inspired by Rob Pike's regex code described in:
+ *
+ * http://www.cs.princeton.edu/courses/archive/spr09/cos333/beautiful.html
+ *
+ *
+ *
+ * Supports:
+ * ---------
+ *     '.'        Dot, matches any character
+ *     '^'        Start anchor, matches beginning of string
+ *     '$'        End anchor, matches end of string
+ *     '*'        Asterisk, match zero or more (greedy)
+ *     '+'        Plus, match one or more (greedy)
+ *     '?'        Question, match zero or one (non-greedy)
+ *     '[abc]'    Character class, match if one of {'a', 'b', 'c'}
+ *     '[^abc]'   Inverted class, match if NOT one of {'a', 'b', 'c'} -- NOTE: feature is currently broken!
+ *     '[a-zA-Z]' Character ranges, the character set of the ranges { a-z | A-Z }
+ *     '\s'       Whitespace, \t \f \r \n \v and spaces
+ *     '\S'       Non-whitespace
+ *     '\w'       Alphanumeric, [a-zA-Z0-9_]
+ *     '\W'       Non-alphanumeric
+ *     '\d'       Digits, [0-9]
+ *     '\D'       Non-digits
+ *
+ *
+ */
+
+#ifndef _N2N_REGEX_
+#define _N2N_REGEX_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdio.h>
+
+/* Compile regex string pattern to a regex_t-array. */
+re_t re_compile (const char* pattern);
+
+
+/* Find matches of the compiled pattern inside text. */
+int re_matchp (re_t pattern, const char* text, int* matchlenght);
+
+
+/* Find matches of the txt pattern inside text (will compile automatically first). */
+int  re_match (const char* pattern, const char* text, int* matchlenght);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif