mirror of https://github.com/catchorg/Catch2.git
133 lines
4.6 KiB
C++
133 lines
4.6 KiB
C++
/*
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* Created by Phil on 15/5/2013.
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* Copyright 2014 Two Blue Cubes Ltd. All rights reserved.
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*
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* Distributed under the Boost Software License, Version 1.0. (See accompanying
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* file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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*/
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#ifndef TWOBLUECUBES_CATCH_TEST_SPEC_PARSER_HPP_INCLUDED
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#define TWOBLUECUBES_CATCH_TEST_SPEC_PARSER_HPP_INCLUDED
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#ifdef __clang__
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wpadded"
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#endif
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#include "catch_test_spec.hpp"
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#include "catch_interfaces_tag_alias_registry.h"
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namespace Catch {
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class TestSpecParser {
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enum Mode{ None, Name, QuotedName, Tag, EscapedName };
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Mode m_mode;
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bool m_exclusion;
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std::size_t m_start, m_pos;
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std::string m_arg;
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std::vector<std::size_t> m_escapeChars;
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TestSpec::Filter m_currentFilter;
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TestSpec m_testSpec;
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ITagAliasRegistry const* m_tagAliases;
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public:
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TestSpecParser( ITagAliasRegistry const& tagAliases ) : m_tagAliases( &tagAliases ) {}
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TestSpecParser& parse( std::string const& arg ) {
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m_mode = None;
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m_exclusion = false;
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m_start = std::string::npos;
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m_arg = m_tagAliases->expandAliases( arg );
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m_escapeChars.clear();
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for( m_pos = 0; m_pos < m_arg.size(); ++m_pos )
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visitChar( m_arg[m_pos] );
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if( m_mode == Name )
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addPattern<TestSpec::NamePattern>();
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return *this;
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}
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TestSpec testSpec() {
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addFilter();
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return m_testSpec;
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}
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private:
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void visitChar( char c ) {
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if( m_mode == None ) {
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switch( c ) {
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case ' ': return;
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case '~': m_exclusion = true; return;
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case '[': return startNewMode( Tag, ++m_pos );
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case '"': return startNewMode( QuotedName, ++m_pos );
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case '\\': return escape();
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default: startNewMode( Name, m_pos ); break;
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}
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}
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if( m_mode == Name ) {
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if( c == ',' ) {
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addPattern<TestSpec::NamePattern>();
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addFilter();
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}
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else if( c == '[' ) {
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if( subString() == "exclude:" )
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m_exclusion = true;
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else
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addPattern<TestSpec::NamePattern>();
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startNewMode( Tag, ++m_pos );
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}
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else if( c == '\\' )
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escape();
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}
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else if( m_mode == EscapedName )
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m_mode = Name;
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else if( m_mode == QuotedName && c == '"' )
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addPattern<TestSpec::NamePattern>();
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else if( m_mode == Tag && c == ']' )
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addPattern<TestSpec::TagPattern>();
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}
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void startNewMode( Mode mode, std::size_t start ) {
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m_mode = mode;
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m_start = start;
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}
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void escape() {
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if( m_mode == None )
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m_start = m_pos;
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m_mode = EscapedName;
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m_escapeChars.push_back( m_pos );
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}
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std::string subString() const { return m_arg.substr( m_start, m_pos - m_start ); }
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template<typename T>
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void addPattern() {
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std::string token = subString();
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for( size_t i = 0; i < m_escapeChars.size(); ++i )
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token = token.substr( 0, m_escapeChars[i]-m_start-i ) + token.substr( m_escapeChars[i]-m_start-i+1 );
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m_escapeChars.clear();
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if( startsWith( token, "exclude:" ) ) {
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m_exclusion = true;
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token = token.substr( 8 );
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}
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if( !token.empty() ) {
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Ptr<TestSpec::Pattern> pattern = new T( token );
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if( m_exclusion )
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pattern = new TestSpec::ExcludedPattern( pattern );
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m_currentFilter.m_patterns.push_back( pattern );
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}
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m_exclusion = false;
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m_mode = None;
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}
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void addFilter() {
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if( !m_currentFilter.m_patterns.empty() ) {
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m_testSpec.m_filters.push_back( m_currentFilter );
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m_currentFilter = TestSpec::Filter();
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}
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}
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};
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inline TestSpec parseTestSpec( std::string const& arg ) {
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return TestSpecParser( ITagAliasRegistry::get() ).parse( arg ).testSpec();
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}
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} // namespace Catch
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#ifdef __clang__
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#pragma clang diagnostic pop
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#endif
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#endif // TWOBLUECUBES_CATCH_TEST_SPEC_PARSER_HPP_INCLUDED
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