catch2/internal/catch_test_spec_parser.hpp

0001
0002 //              Copyright Catch2 Authors
0003 // Distributed under the Boost Software License, Version 1.0.
0004 //   (See accompanying file LICENSE.txt or copy at
0005 //        https://www.boost.org/LICENSE_1_0.txt)
0006
0007 // SPDX-License-Identifier: BSL-1.0
0008 #ifndef CATCH_TEST_SPEC_PARSER_HPP_INCLUDED
0009 #define CATCH_TEST_SPEC_PARSER_HPP_INCLUDED
0010
0011 #ifdef __clang__
0012 #pragma clang diagnostic push
0013 #pragma clang diagnostic ignored "-Wpadded"
0014 #endif
0015
0016 #include <catch2/catch_test_spec.hpp>
0017
0018 #include <vector>
0019 #include <string>
0020
0021 namespace Catch {
0022
0023     class ITagAliasRegistry;
0024
0025     class TestSpecParser {
0026         enum Mode{ None, Name, QuotedName, Tag, EscapedName };
0027         Mode m_mode = None;
0028         Mode lastMode = None;
0029         bool m_exclusion = false;
0030         std::size_t m_pos = 0;
0031         std::size_t m_realPatternPos = 0;
0032         std::string m_arg;
0033         std::string m_substring;
0034         std::string m_patternName;
0035         std::vector<std::size_t> m_escapeChars;
0036         TestSpec::Filter m_currentFilter;
0037         TestSpec m_testSpec;
0038         ITagAliasRegistry const* m_tagAliases = nullptr;
0039
0040     public:
0041         TestSpecParser( ITagAliasRegistry const& tagAliases );
0042
0043         TestSpecParser& parse( std::string const& arg );
0044         TestSpec testSpec();
0045
0046     private:
0047         bool visitChar( char c );
0048         void startNewMode( Mode mode );
0049         bool processNoneChar( char c );
0050         void processNameChar( char c );
0051         bool processOtherChar( char c );
0052         void endMode();
0053         void escape();
0054         bool isControlChar( char c ) const;
0055         void saveLastMode();
0056         void revertBackToLastMode();
0057         void addFilter();
0058         bool separate();
0059
0060         // Handles common preprocessing of the pattern for name/tag patterns
0061         std::string preprocessPattern();
0062         // Adds the current pattern as a test name
0063         void addNamePattern();
0064         // Adds the current pattern as a tag
0065         void addTagPattern();
0066
0067         inline void addCharToPattern(char c) {
0068             m_substring += c;
0069             m_patternName += c;
0070             m_realPatternPos++;
0071         }
0072
0073     };
0074
0075 } // namespace Catch
0076
0077 #ifdef __clang__
0078 #pragma clang diagnostic pop
0079 #endif
0080
0081 #endif // CATCH_TEST_SPEC_PARSER_HPP_INCLUDED