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mod_rayo: fix error in SRGS grammar parser... <one-of><item>7</item><item>715</item></one-of> will return MATCH_END with input of 7 instead of MATCH since 715 is a potential match with further input.

This commit is contained in:
Chris Rienzo 2014-10-09 11:38:53 -04:00
parent 63734bcde0
commit 28bc992fce
2 changed files with 11 additions and 4 deletions
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6
src/mod/event_handlers/mod_rayo/srgs.c
View File

@ -1256,12 +1256,16 @@ static int is_match_end(pcre *compiled_regex, const char *input)
search = search_set;
}
search_input[input_size] = *search++;
result = pcre_exec(compiled_regex, NULL, search_input, input_size + 1, 0, 0,
result = pcre_exec(compiled_regex, NULL, search_input, input_size + 1, 0, PCRE_PARTIAL,
ovector, sizeof(ovector) / sizeof(ovector[0]));
if (result > 0) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "not match end\n");
return 0;
}
if (result == PCRE_ERROR_PARTIAL) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "partial match possible - not match end\n");
return 0;
}
}
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "is match end\n");
return 1;

9
src/mod/event_handlers/mod_rayo/test_srgs/main.c
View File

@ -11,8 +11,9 @@ static const char *adhearsion_menu_grammar =
" <one-of>\n"
" <item><tag>0</tag>1</item>\n"
" <item><tag>1</tag>5</item>\n"
" <item><tag>2</tag>7</item>\n"
" <item><tag>7</tag>7</item>\n"
" <item><tag>3</tag>9</item>\n"
" <item><tag>4</tag>715</item>\n"
" </one-of>\n"
" </rule>\n"
"</grammar>\n";
@ -43,8 +44,10 @@ static void test_match_adhearsion_menu_grammar(void)
ASSERT_STRING_EQUALS("1", interpretation);
ASSERT_EQUALS(SMT_NO_MATCH, srgs_grammar_match(grammar, "6", &interpretation));
ASSERT_NULL(interpretation);
ASSERT_EQUALS(SMT_MATCH_END, srgs_grammar_match(grammar, "7", &interpretation));
ASSERT_STRING_EQUALS("2", interpretation);
ASSERT_EQUALS(SMT_MATCH, srgs_grammar_match(grammar, "7", &interpretation));
ASSERT_STRING_EQUALS("7", interpretation);
ASSERT_EQUALS(SMT_MATCH_END, srgs_grammar_match(grammar, "715", &interpretation));
ASSERT_STRING_EQUALS("4", interpretation);
ASSERT_EQUALS(SMT_NO_MATCH, srgs_grammar_match(grammar, "8", &interpretation));
ASSERT_NULL(interpretation);
ASSERT_EQUALS(SMT_MATCH_END, srgs_grammar_match(grammar, "9", &interpretation));