2 * This file is part of GNUnet
3 * (C) 2012 Christian Grothoff (and other contributing authors)
5 * GNUnet is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published
7 * by the Free Software Foundation; either version 3, or (at your
8 * option) any later version.
10 * GNUnet is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with GNUnet; see the file COPYING. If not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 * Boston, MA 02111-1307, USA.
21 * @file src/regex/regex_test_lib.h
22 * @brief library to read regexes representing IP networks from a file.
23 * and simplifying the into one big regex, in order to run
24 * tests (regex performance, regex profiler).
25 * @author Bertlomiej Polot
28 #ifndef REGEX_INTERNAL_TEST_LIB_H
29 #define REGEX_INTERNAL_TEST_LIB_H
31 #include "regex_internal_lib.h"
36 #if 0 /* keep Emacsens' auto-indent happy */
42 * Combine an array of regexes into a single prefix-shared regex.
44 * @param regexes A NULL-terminated array of regexes.
46 * @return A string with a single regex that matches any of the original regexes
49 REGEX_TEST_combine(char * const regexes[]);
53 * Read a set of regexes from a file, one per line and return them in an array
54 * suitable for REGEX_TEST_combine.
55 * The array must be free'd using REGEX_TEST_free_from_file.
57 * @param filename Name of the file containing the regexes.
59 * @return A newly allocated, NULL terminated array of regexes.
62 REGEX_TEST_read_from_file (const char *filename);
66 * Free all memory reserved for a set of regexes created by read_from_file.
68 * @param regexes NULL-terminated array of regexes.
71 REGEX_TEST_free_from_file (char **regexes);
75 * Generate a (pseudo) random regular expression of length 'rx_length', as well
76 * as a (optional) string that will be matched by the generated regex. The
77 * returned regex needs to be freed.
79 * @param rx_length length of the random regex.
80 * @param matching_str (optional) pointer to a string that will contain a string
81 * that will be matched by the generated regex, if
82 * 'matching_str' pointer was not NULL.
84 * @return NULL if 'rx_length' is 0, a random regex of length 'rx_length', which
85 * needs to be freed, otherwise.
88 REGEX_TEST_generate_random_regex (size_t rx_length, char *matching_str);
92 * Generate a random string of maximum length 'max_len' that only contains literals allowed
93 * in a regular expression. The string might be 0 chars long but is garantueed
94 * to be shorter or equal to 'max_len'.
96 * @param max_len maximum length of the string that should be generated.
98 * @return random string that needs to be freed.
101 REGEX_TEST_generate_random_string (size_t max_len);
105 * Options for graph creation function
106 * REGEX_TEST_automaton_save_graph.
108 enum REGEX_TEST_GraphSavingOptions
111 * Default. Do nothing special.
113 REGEX_TEST_GRAPH_DEFAULT = 0,
116 * The generated graph will include extra information such as the NFA states
117 * that were used to generate the DFA state.
119 REGEX_TEST_GRAPH_VERBOSE = 1,
122 * Enable graph coloring. Will color each SCC in a different color.
124 REGEX_TEST_GRAPH_COLORING = 2
129 * Save the given automaton as a GraphViz dot file.
131 * @param a the automaton to be saved.
132 * @param filename where to save the file.
133 * @param options options for graph generation that include coloring or verbose
137 REGEX_TEST_automaton_save_graph (struct REGEX_INTERNAL_Automaton *a,
138 const char *filename,
139 enum REGEX_TEST_GraphSavingOptions options);
143 #if 0 /* keep Emacsens' auto-indent happy */
150 /* end of regex_internal_lib.h */