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 regex/test_regex_iterate_api.c
22 * @brief test for regex.c
23 * @author Maximilian Szengel
28 #include "gnunet_regex_lib.h"
29 #include "regex_internal.h"
32 * Regex initial padding.
34 #define INITIAL_PADDING "PADPADPADPADPADP"
37 * Set to GNUNET_YES to save a debug graph.
39 #define GNUNET_REGEX_ITERATE_SAVE_DEBUG_GRAPH GNUNET_NO
41 static unsigned int transition_counter;
43 struct IteratorContext
46 int should_save_graph;
48 unsigned int string_count;
50 unsigned int match_count;
53 struct RegexStringPair
56 unsigned int string_count;
61 key_iterator (void *cls, const struct GNUNET_HashCode *key, const char *proof,
62 int accepting, unsigned int num_edges,
63 const struct GNUNET_REGEX_Edge *edges)
66 struct IteratorContext *ctx = cls;
68 char *state_id = GNUNET_strdup (GNUNET_h2s (key));
70 if (GNUNET_YES == ctx->should_save_graph)
72 if (GNUNET_YES == accepting)
73 GNUNET_asprintf (&out_str, "\"%s\" [shape=doublecircle]\n", state_id);
75 GNUNET_asprintf (&out_str, "\"%s\" [shape=circle]\n", state_id);
76 fwrite (out_str, strlen (out_str), 1, ctx->graph_filep);
77 GNUNET_free (out_str);
79 for (i = 0; i < num_edges; i++)
82 GNUNET_asprintf (&out_str, "\"%s\" -> \"%s\" [label = \"%s (%s)\"]\n",
83 state_id, GNUNET_h2s (&edges[i].destination),
84 edges[i].label, proof);
85 fwrite (out_str, strlen (out_str), 1, ctx->graph_filep);
87 GNUNET_free (out_str);
92 for (i = 0; i < num_edges; i++)
96 for (i = 0; i < ctx->string_count; i++)
98 if (0 == strcmp (proof, ctx->strings[i]))
102 if (GNUNET_OK != GNUNET_REGEX_check_proof (proof, key))
105 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
106 "Proof check failed: proof: %s key: %s\n", proof, state_id);
109 GNUNET_free (state_id);
113 main (int argc, char *argv[])
115 GNUNET_log_setup ("test-regex", "WARNING", NULL);
118 struct GNUNET_REGEX_Automaton *dfa;
120 unsigned int num_transitions;
121 char *filename = NULL;
122 struct IteratorContext ctx = { 0, 0, NULL, 0, NULL, 0 };
126 const struct RegexStringPair rxstr[13] = {
127 {INITIAL_PADDING "ab(c|d)+c*(a(b|c)+d)+(bla)+", 2,
128 {INITIAL_PADDING "abcdcdca", INITIAL_PADDING "abcabdbl"}},
130 "abcdefghixxxxxxxxxxxxxjklmnop*qstoisdjfguisdfguihsdfgbdsuivggsd", 1,
131 {INITIAL_PADDING "abcdefgh"}},
132 {INITIAL_PADDING "VPN-4-1(0|1)*", 2,
133 {INITIAL_PADDING "VPN-4-10", INITIAL_PADDING "VPN-4-11"}},
134 {INITIAL_PADDING "(a+X*y+c|p|R|Z*K*y*R+w|Y*6+n+h*k*w+V*F|W*B*e*)", 2,
135 {INITIAL_PADDING "aaaaaaaa", INITIAL_PADDING "aaXXyyyc"}},
136 {INITIAL_PADDING "a*", 1, {INITIAL_PADDING "aaaaaaaa"}},
137 {INITIAL_PADDING "xzxzxzxzxz", 1, {INITIAL_PADDING "xzxzxzxz"}},
138 {INITIAL_PADDING "xyz*", 1, {INITIAL_PADDING "xyzzzzzz"}},
140 "abcd:(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1):(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)(0|1)",
141 2, {INITIAL_PADDING "abcd:000", INITIAL_PADDING "abcd:101"}},
142 {INITIAL_PADDING "(x*|(0|1|2)(a|b|c|d)+)", 2,
143 {INITIAL_PADDING "xxxxxxxx", INITIAL_PADDING "0abcdbad"}},
144 {INITIAL_PADDING "(0|1)(0|1)23456789ABC", 1, {INITIAL_PADDING "11234567"}},
145 {INITIAL_PADDING "0*123456789ABC*", 3,
146 {INITIAL_PADDING "00123456", INITIAL_PADDING "00000000",
147 INITIAL_PADDING "12345678"}},
148 {INITIAL_PADDING "0123456789A*BC", 1, {INITIAL_PADDING "01234567"}},
149 {"GNUNETVPN000100000IPEX6-fc5a:4e1:c2ba::1", 1, {"GNUNETVPN000100000IPEX6-"}}
152 const char *graph_start_str = "digraph G {\nrankdir=LR\n";
153 const char *graph_end_str = "\n}\n";
155 for (i = 0; i < 13; i++)
157 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Iterating DFA for regex %s\n",
162 if (GNUNET_YES == GNUNET_REGEX_ITERATE_SAVE_DEBUG_GRAPH)
164 GNUNET_asprintf (&filename, "iteration_graph_%u.dot", i);
165 ctx.graph_filep = fopen (filename, "w");
166 if (NULL == ctx.graph_filep)
168 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
169 "Could not open file %s for saving iteration graph.\n",
171 ctx.should_save_graph = GNUNET_NO;
175 ctx.should_save_graph = GNUNET_YES;
176 fwrite (graph_start_str, strlen (graph_start_str), 1, ctx.graph_filep);
178 GNUNET_free (filename);
182 ctx.should_save_graph = GNUNET_NO;
183 ctx.graph_filep = NULL;
186 // Iterate over DFA edges
187 transition_counter = 0;
188 ctx.string_count = rxstr[i].string_count;
189 ctx.strings = rxstr[i].strings;
191 dfa = GNUNET_REGEX_construct_dfa (rxstr[i].regex, strlen (rxstr[i].regex), 0);
192 GNUNET_REGEX_iterate_all_edges (dfa, key_iterator, &ctx);
194 GNUNET_REGEX_get_transition_count (dfa) - dfa->start->transition_count;
196 if (transition_counter < num_transitions)
198 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
199 "Automaton has %d transitions, iterated over %d transitions\n",
200 num_transitions, transition_counter);
204 if (ctx.match_count < ctx.string_count)
206 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
207 "Missing initial states for regex %s\n", rxstr[i].regex);
208 error += (ctx.string_count - ctx.match_count);
210 else if (ctx.match_count > ctx.string_count)
212 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
213 "Duplicate initial transitions for regex %s\n",
215 error += (ctx.string_count - ctx.match_count);
218 GNUNET_REGEX_automaton_destroy (dfa);
221 if (GNUNET_YES == ctx.should_save_graph)
223 fwrite (graph_end_str, strlen (graph_end_str), 1, ctx.graph_filep);
224 fclose (ctx.graph_filep);
225 ctx.graph_filep = NULL;
226 ctx.should_save_graph = GNUNET_NO;
231 for (i = 0; i < 13; i++)
233 ctx.string_count = rxstr[i].string_count;
234 ctx.strings = rxstr[i].strings;
237 dfa = GNUNET_REGEX_construct_dfa (rxstr[i].regex, strlen (rxstr[i].regex), 0);
238 GNUNET_REGEX_dfa_add_multi_strides (NULL, dfa, 2);
239 GNUNET_REGEX_iterate_all_edges (dfa, key_iterator, &ctx);
241 if (ctx.match_count < ctx.string_count)
243 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
244 "Missing initial states for regex %s\n", rxstr[i].regex);
245 error += (ctx.string_count - ctx.match_count);
248 GNUNET_REGEX_automaton_destroy (dfa);