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badumbatish
81d4e8fe9d
Add support for question mark and plus mark in regex, supply testing for star Added more characters to the regex alphabets, add more test case Added support for regex matching of configs, awaiting reviews Rename variable to CamelCase Addresses PR reviews Remove unnecessary features and test cases Rewrite to naive regex with dp Addresses PR reviews Build fixes Code Review
38 lines
1.0 KiB
C++
38 lines
1.0 KiB
C++
// SPDX-License-Identifier: MIT
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#include <FEXCore/Utils/WildcardMatcher.h>
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namespace FEXCore::Utils::Wildcard {
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class WildcardMatcher {
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private:
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std::string_view pattern;
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std::string_view text;
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public:
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WildcardMatcher(std::string_view pattern, std::string_view text)
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: pattern(pattern)
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, text(text) {}
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bool matchHelper(size_t p_idx, size_t t_idx);
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};
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bool WildcardMatcher::matchHelper(size_t p_idx, size_t t_idx) {
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if (p_idx == pattern.size()) {
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// Pattern exhausted
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return (t_idx == text.size());
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} else if (pattern[p_idx] == '*') {
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// Wildcard: Try matching zero characters, or one or more characters
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return matchHelper(p_idx + 1, t_idx) || (t_idx < text.size() && matchHelper(p_idx, t_idx + 1));
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} else {
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// Match normally
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return (t_idx < text.size() && pattern[p_idx] == text[t_idx] && matchHelper(p_idx + 1, t_idx + 1));
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}
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}
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bool Matches(std::string_view pattern, std::string_view text) {
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WildcardMatcher matcher(pattern, text);
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return matcher.matchHelper(0, 0);
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}
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} // namespace FEXCore::Utils::Wildcard
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