From 24f2c9d570bd181c622955506f6ecc000d5b2a98 Mon Sep 17 00:00:00 2001
From: Maximilian Szengel <gnunet@maxsz.de>
Date: Wed, 27 Jun 2012 16:13:48 +0000
Subject: new and improved tests

---
 src/regex/regex_internal.h | 96 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 96 insertions(+)
 create mode 100644 src/regex/regex_internal.h

(limited to 'src/regex/regex_internal.h')

diff --git a/src/regex/regex_internal.h b/src/regex/regex_internal.h
new file mode 100644
index 000000000..8ea597d40
--- /dev/null
+++ b/src/regex/regex_internal.h
@@ -0,0 +1,96 @@
+/*
+     This file is part of GNUnet
+     (C) 2012 Christian Grothoff (and other contributing authors)
+
+     GNUnet 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, or (at your
+     option) any later version.
+
+     GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
+     Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+     Boston, MA 02111-1307, USA.
+*/
+/**
+ * @file src/regex/regex_internal.h
+ * @brief common internal definitions for regex library
+ * @author Maximilian Szengel
+ */
+#ifndef REGEX_INTERNAL_H
+#define REGEX_INTERNAL_H
+
+#include "gnunet_regex_lib.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#if 0                           /* keep Emacsens' auto-indent happy */
+}
+#endif
+#endif
+
+/**
+ * char array of literals that are allowed inside a regex (apart from the
+ * operators)
+ */
+#define ALLOWED_LITERALS "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
+
+
+/**
+ * Get the canonical regex of the given automaton.
+ * When constructing the automaton a proof is computed for each state,
+ * consisting of the regular expression leading to this state. A complete
+ * regex for the automaton can be computed by combining these proofs.
+ * As of now this function is only useful for testing.
+ *
+ * @param a automaton for which the canonical regex should be returned.
+ *
+ * @return
+ */
+const char *
+GNUNET_REGEX_get_canonical_regex (struct GNUNET_REGEX_Automaton *a);
+
+
+/**
+ * Generate a (pseudo) random regular expression of length 'rx_length', as well
+ * as a (optional) string that will be matched by the generated regex. The
+ * returned regex needs to be freed.
+ *
+ * @param rx_length length of the random regex.
+ * @param matching_str (optional) pointer to a string that will contain a string
+ *                     that will be matched by the generated regex, if
+ *                     'matching_str' pointer was not NULL.
+ *
+ * @return NULL if 'rx_length' is 0, a random regex of length 'rx_length', which
+ *         needs to be freed, otherwise.
+ */
+char *
+GNUNET_REGEX_generate_random_regex (size_t rx_length, char *matching_str);
+
+
+/**
+ * Generate a random string of maximum length 'max_len' that only contains literals allowed
+ * in a regular expression. The string might be 0 chars long but is garantueed
+ * to be shorter or equal to 'max_len'.
+ *
+ * @param max_len maximum length of the string that should be generated.
+ *
+ * @return random string that needs to be freed.
+ */
+char *
+GNUNET_REGEX_generate_random_string (size_t max_len);
+
+#if 0                           /* keep Emacsens' auto-indent happy */
+{
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+#endif
-- 
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