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Handle . in parse_term()

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This commit is contained in:
Camden Dixie O'Brien 2024-10-25 14:16:56 +01:00
parent f434af5c96
commit a9b8e24007
2 changed files with 26 additions and 5 deletions
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17
lib/parser.c
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@ -14,6 +14,7 @@ static bool is_special(char c)
{ {
switch (c) { switch (c) {
case '|': case '|':
case '.':
return true; return true;
default: default:
return false; return false;
@ -34,12 +35,18 @@ static int parse_term(const char *input, int rem, term_t *out)
{ {
int result, used = 0; int result, used = 0;
result = parse_literal(input + used, rem - used, &out->literal); if (used < rem && '.' == input[0]) {
if (result < 0) out->type = TERM_TYPE_WILDCARD;
return -1; ++used;
} else {
result = parse_literal(input + used, rem - used, &out->literal);
if (result < 0)
return -1;
out->type = TERM_TYPE_LITERAL;
used += result;
}
out->quantifier = QUANTIFIER_NONE; out->quantifier = QUANTIFIER_NONE;
out->type = TERM_TYPE_LITERAL;
used += result;
return used; return used;
} }

14
tests/parser_tests.c
View File

@ -84,6 +84,19 @@ static void abc_is_parsed_as_sequence_of_unquantified_literals(void)
regex_free_children(&r); regex_free_children(&r);
} }
static void dot_is_parsed_as_unquantified_wildcard_term(void)
{
regex_t r = { 0 };
const int result = PARSE_REGEX_STRING(".", &r);
ASSERT_NE(-1, result);
ASSERT_EQ(1, r.sequence.len);
ASSERT_EQ(QUANTIFIER_NONE, r.sequence.contents[0].quantifier);
ASSERT_EQ(TERM_TYPE_WILDCARD, r.sequence.contents[0].type);
regex_free_children(&r);
}
int main(void) int main(void)
{ {
TESTING_BEGIN(); TESTING_BEGIN();
@ -93,5 +106,6 @@ int main(void)
a_is_parsed_as_unquantified_literal(); a_is_parsed_as_unquantified_literal();
b_is_parsed_as_unquantified_literal(); b_is_parsed_as_unquantified_literal();
abc_is_parsed_as_sequence_of_unquantified_literals(); abc_is_parsed_as_sequence_of_unquantified_literals();
dot_is_parsed_as_unquantified_wildcard_term();
return TESTING_END(); return TESTING_END();
} }