625 lines
24 KiB
C++
Executable file
625 lines
24 KiB
C++
Executable file
// (C) Copyright Gennadiy Rozental 2001.
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// Use, modification, and distribution are subject to the
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// Boost Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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// See http://www.boost.org/libs/test for the library home page.
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//
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//!@file
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//!@brief CLA parser
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// ***************************************************************************
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#ifndef BOOST_TEST_UTILS_RUNTIME_CLA_PARSER_HPP
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#define BOOST_TEST_UTILS_RUNTIME_CLA_PARSER_HPP
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// Boost.Test Runtime parameters
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#include <boost/test/utils/runtime/argument.hpp>
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#include <boost/test/utils/runtime/modifier.hpp>
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#include <boost/test/utils/runtime/parameter.hpp>
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#include <boost/test/utils/runtime/cla/argv_traverser.hpp>
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// Boost.Test
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#include <boost/test/utils/foreach.hpp>
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#include <boost/test/utils/algorithm.hpp>
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#include <boost/test/detail/throw_exception.hpp>
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#include <boost/test/detail/global_typedef.hpp>
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#include <boost/algorithm/cxx11/all_of.hpp> // !! ?? unnecessary after cxx11
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// STL
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// !! ?? #include <unordered_set>
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#include <set>
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#include <iostream>
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#include <boost/test/detail/suppress_warnings.hpp>
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namespace boost {
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namespace runtime {
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namespace cla {
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// ************************************************************************** //
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// ************** runtime::cla::parameter_trie ************** //
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// ************************************************************************** //
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namespace rt_cla_detail {
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struct parameter_trie;
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typedef shared_ptr<parameter_trie> parameter_trie_ptr;
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typedef std::map<char,parameter_trie_ptr> trie_per_char;
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typedef std::vector<boost::reference_wrapper<parameter_cla_id const> > param_cla_id_list;
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struct parameter_trie {
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parameter_trie() : m_has_final_candidate( false ) {}
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/// If subtrie corresponding to the char c exists returns it otherwise creates new
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parameter_trie_ptr make_subtrie( char c )
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{
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trie_per_char::const_iterator it = m_subtrie.find( c );
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if( it == m_subtrie.end() )
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it = m_subtrie.insert( std::make_pair( c, parameter_trie_ptr( new parameter_trie ) ) ).first;
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return it->second;
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}
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/// Creates series of sub-tries per characters in a string
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parameter_trie_ptr make_subtrie( cstring s )
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{
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parameter_trie_ptr res;
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BOOST_TEST_FOREACH( char, c, s )
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res = (res ? res->make_subtrie( c ) : make_subtrie( c ));
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return res;
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}
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/// Registers candidate parameter for this subtrie. If final, it needs to be unique
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void add_candidate_id( parameter_cla_id const& param_id, basic_param_ptr param_candidate, bool final )
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{
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BOOST_TEST_I_ASSRT( !m_has_final_candidate && (!final || m_id_candidates.empty()),
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conflicting_param() << "Parameter cla id " << param_id.m_tag << " conflicts with the "
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<< "parameter cla id " << m_id_candidates.back().get().m_tag );
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m_has_final_candidate = final;
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m_id_candidates.push_back( ref(param_id) );
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if( m_id_candidates.size() == 1 )
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m_param_candidate = param_candidate;
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else
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m_param_candidate.reset();
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}
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/// Gets subtrie for specified char if present or nullptr otherwise
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parameter_trie_ptr get_subtrie( char c ) const
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{
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trie_per_char::const_iterator it = m_subtrie.find( c );
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return it != m_subtrie.end() ? it->second : parameter_trie_ptr();
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}
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// Data members
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trie_per_char m_subtrie;
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param_cla_id_list m_id_candidates;
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basic_param_ptr m_param_candidate;
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bool m_has_final_candidate;
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};
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// ************************************************************************** //
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// ************** runtime::cla::report_foreing_token ************** //
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// ************************************************************************** //
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static void
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report_foreing_token( cstring program_name, cstring token )
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{
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std::cerr << "Boost.Test WARNING: token \"" << token << "\" does not correspond to the Boost.Test argument \n"
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<< " and should be placed after all Boost.Test arguments and the -- separator.\n"
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<< " For example: " << program_name << " --random -- " << token << "\n";
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}
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} // namespace rt_cla_detail
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// ************************************************************************** //
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// ************** runtime::cla::parser ************** //
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// ************************************************************************** //
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class parser {
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public:
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/// Initializes a parser and builds internal trie representation used for
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/// parsing based on the supplied parameters
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#ifndef BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS
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template<typename Modifiers=nfp::no_params_type>
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parser( parameters_store const& parameters, Modifiers const& m = nfp::no_params )
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#else
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template<typename Modifiers>
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parser( parameters_store const& parameters, Modifiers const& m )
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#endif
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{
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nfp::opt_assign( m_end_of_param_indicator, m, end_of_params );
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nfp::opt_assign( m_negation_prefix, m, negation_prefix );
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BOOST_TEST_I_ASSRT( algorithm::all_of( m_end_of_param_indicator.begin(),
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m_end_of_param_indicator.end(),
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parameter_cla_id::valid_prefix_char ),
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invalid_cla_id() << "End of parameters indicator can only consist of prefix characters." );
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BOOST_TEST_I_ASSRT( algorithm::all_of( m_negation_prefix.begin(),
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m_negation_prefix.end(),
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parameter_cla_id::valid_name_char ),
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invalid_cla_id() << "Negation prefix can only consist of prefix characters." );
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build_trie( parameters );
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}
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// input processing method
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int
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parse( int argc, char** argv, runtime::arguments_store& res )
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{
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// save program name for help message
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m_program_name = argv[0];
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cstring path_sep( "\\/" );
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cstring::iterator it = unit_test::utils::find_last_of( m_program_name.begin(), m_program_name.end(),
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path_sep.begin(), path_sep.end() );
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if( it != m_program_name.end() )
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m_program_name.trim_left( it + 1 );
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// Set up the traverser
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argv_traverser tr( argc, (char const**)argv );
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// Loop till we reach end of input
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while( !tr.eoi() ) {
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cstring curr_token = tr.current_token();
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cstring prefix;
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cstring name;
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cstring value_separator;
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bool negative_form = false;
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// Perform format validations and split the argument into prefix, name and separator
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// False return value indicates end of params indicator is met
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if( !validate_token_format( curr_token, prefix, name, value_separator, negative_form ) ) {
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// get rid of "end of params" token
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tr.next_token();
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break;
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}
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// Locate trie corresponding to found prefix and skip it in the input
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trie_ptr curr_trie = m_param_trie[prefix];
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if( !curr_trie ) {
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// format_error() << "Unrecognized parameter prefix in the argument " << tr.current_token()
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rt_cla_detail::report_foreing_token( m_program_name, curr_token );
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tr.save_token();
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continue;
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}
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curr_token.trim_left( prefix.size() );
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// Locate parameter based on a name and skip it in the input
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locate_result locate_res = locate_parameter( curr_trie, name, curr_token );
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parameter_cla_id const& found_id = locate_res.first;
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basic_param_ptr found_param = locate_res.second;
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if( negative_form ) {
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BOOST_TEST_I_ASSRT( found_id.m_negatable,
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format_error( found_param->p_name )
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<< "Parameter tag " << found_id.m_tag << " is not negatable." );
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curr_token.trim_left( m_negation_prefix.size() );
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}
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curr_token.trim_left( name.size() );
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bool should_go_to_next = true;
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cstring value;
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// Skip validations if parameter has optional value and we are at the end of token
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if( !value_separator.is_empty() || !found_param->p_has_optional_value ) {
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// we are given a separator or there is no optional value
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// Validate and skip value separator in the input
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BOOST_TEST_I_ASSRT( found_id.m_value_separator == value_separator,
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format_error( found_param->p_name )
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<< "Invalid separator for the parameter "
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<< found_param->p_name
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<< " in the argument " << tr.current_token() );
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curr_token.trim_left( value_separator.size() );
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// Deduce value source
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value = curr_token;
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if( value.is_empty() ) {
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tr.next_token();
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value = tr.current_token();
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}
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BOOST_TEST_I_ASSRT( !value.is_empty(),
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format_error( found_param->p_name )
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<< "Missing an argument value for the parameter "
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<< found_param->p_name
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<< " in the argument " << tr.current_token() );
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}
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else if( (value_separator.is_empty() && found_id.m_value_separator.empty()) ) {
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// Deduce value source
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value = curr_token;
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if( value.is_empty() ) {
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tr.next_token(); // tokenization broke the value, we check the next one
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if(!found_param->p_has_optional_value) {
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// there is no separator and there is no optional value
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// we look for the value on the next token
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// example "-t XXXX" (no default)
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// and we commit this value as being the passed value
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value = tr.current_token();
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}
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else {
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// there is no separator and the value is optional
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// we check the next token
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// example "-c" (defaults to true)
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// and commit this as the value if this is not a token
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cstring value_check = tr.current_token();
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cstring prefix_test, name_test, value_separator_test;
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bool negative_form_test;
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if( validate_token_format( value_check, prefix_test, name_test, value_separator_test, negative_form_test )
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&& m_param_trie[prefix_test]) {
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// this is a token, we consume what we have
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should_go_to_next = false;
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}
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else {
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// this is a value, we commit it
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value = value_check;
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}
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}
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}
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}
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// Validate against argument duplication
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BOOST_TEST_I_ASSRT( !res.has( found_param->p_name ) || found_param->p_repeatable,
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duplicate_arg( found_param->p_name )
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<< "Duplicate argument value for the parameter "
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<< found_param->p_name
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<< " in the argument " << tr.current_token() );
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// Produce argument value
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found_param->produce_argument( value, negative_form, res );
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if(should_go_to_next) {
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tr.next_token();
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}
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}
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// generate the remainder and return it's size
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return tr.remainder();
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}
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// help/usage/version
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void
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version( std::ostream& ostr )
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{
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ostr << "Boost.Test module ";
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#if defined(BOOST_TEST_MODULE)
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// we do not want to refer to the master test suite there
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ostr << '\'' << BOOST_TEST_STRINGIZE( BOOST_TEST_MODULE ).trim( "\"" ) << "' ";
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#endif
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ostr << "in executable '" << m_program_name << "'\n";
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ostr << "Compiled from Boost version "
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<< BOOST_VERSION/100000 << "."
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<< BOOST_VERSION/100 % 1000 << "."
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<< BOOST_VERSION % 100 ;
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ostr << " with ";
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#if defined(BOOST_TEST_INCLUDED)
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ostr << "header-only inclusion of";
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#elif defined(BOOST_TEST_DYN_LINK)
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ostr << "dynamic linking to";
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#else
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ostr << "static linking to";
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#endif
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ostr << " Boost.Test\n";
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ostr << "- Compiler: " << BOOST_COMPILER << '\n'
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<< "- Platform: " << BOOST_PLATFORM << '\n'
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<< "- STL : " << BOOST_STDLIB;
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ostr << std::endl;
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}
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void
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usage(std::ostream& ostr,
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cstring param_name = cstring(),
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bool use_color = true)
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{
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namespace utils = unit_test::utils;
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namespace ut_detail = unit_test::ut_detail;
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if( !param_name.is_empty() ) {
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basic_param_ptr param = locate_parameter( m_param_trie[help_prefix], param_name, "" ).second;
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param->usage( ostr, m_negation_prefix );
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}
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else {
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ostr << "\n The program '" << m_program_name << "' is a Boost.Test module containing unit tests.";
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{
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BOOST_TEST_SCOPE_SETCOLOR( use_color, ostr, term_attr::BRIGHT, term_color::ORIGINAL );
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ostr << "\n\n Usage\n ";
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}
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{
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BOOST_TEST_SCOPE_SETCOLOR( use_color, ostr, term_attr::BRIGHT, term_color::GREEN );
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ostr << m_program_name << " [Boost.Test argument]... ";
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}
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if( !m_end_of_param_indicator.empty() ) {
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BOOST_TEST_SCOPE_SETCOLOR( use_color, ostr, term_attr::BRIGHT, term_color::YELLOW );
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ostr << '[' << m_end_of_param_indicator << " [custom test module argument]...]";
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}
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}
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ostr << "\n\n Use\n ";
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{
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BOOST_TEST_SCOPE_SETCOLOR( use_color, ostr, term_attr::BRIGHT, term_color::GREEN );
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ostr << m_program_name << " --help";
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}
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ostr << "\n or ";
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{
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BOOST_TEST_SCOPE_SETCOLOR( use_color, ostr, term_attr::BRIGHT, term_color::GREEN );
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ostr << m_program_name << " --help=<parameter name>";
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}
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ostr << "\n for detailed help on Boost.Test parameters.\n";
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}
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void
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help(std::ostream& ostr,
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parameters_store const& parameters,
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cstring param_name,
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bool use_color = true)
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{
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namespace utils = unit_test::utils;
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namespace ut_detail = unit_test::ut_detail;
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if( !param_name.is_empty() ) {
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basic_param_ptr param = locate_parameter( m_param_trie[help_prefix], param_name, "" ).second;
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param->help( ostr, m_negation_prefix, use_color);
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return;
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}
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usage(ostr, cstring(), use_color);
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ostr << "\n\n";
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{
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BOOST_TEST_SCOPE_SETCOLOR( use_color, ostr, term_attr::BRIGHT, term_color::ORIGINAL );
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ostr << " Command line flags:\n";
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}
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runtime::commandline_pretty_print(
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ostr,
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" ",
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"The command line flags of Boost.Test are listed below. "
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"All parameters are optional. You can specify parameter value either "
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"as a command line argument or as a value of its corresponding environment "
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"variable. If a flag is specified as a command line argument and an environment variable "
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"at the same time, the command line takes precedence. "
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"The command line argument "
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"support name guessing, and works with shorter names as long as those are not ambiguous."
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);
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if( !m_end_of_param_indicator.empty() ) {
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ostr << "\n\n All the arguments after the '";
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{
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BOOST_TEST_SCOPE_SETCOLOR( use_color, ostr, term_attr::BRIGHT, term_color::YELLOW );
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ostr << m_end_of_param_indicator;
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}
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ostr << "' are ignored by Boost.Test.";
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}
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{
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BOOST_TEST_SCOPE_SETCOLOR( use_color, ostr, term_attr::BRIGHT, term_color::ORIGINAL );
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ostr << "\n\n Environment variables:\n";
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}
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runtime::commandline_pretty_print(
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ostr,
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" ",
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"Every argument listed below may also be set by a corresponding environment"
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"variable. For an argument '--argument_x=<value>', the corresponding "
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"environment variable is 'BOOST_TEST_ARGUMENT_X=value"
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);
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ostr << "\n\n The following parameters are supported:\n";
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BOOST_TEST_FOREACH(
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parameters_store::storage_type::value_type const&,
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v,
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parameters.all() )
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{
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basic_param_ptr param = v.second;
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ostr << "\n";
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param->usage( ostr, m_negation_prefix, use_color);
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}
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}
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private:
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typedef rt_cla_detail::parameter_trie_ptr trie_ptr;
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typedef rt_cla_detail::trie_per_char trie_per_char;
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typedef std::map<cstring,trie_ptr> str_to_trie;
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void
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build_trie( parameters_store const& parameters )
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{
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// Iterate over all parameters
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BOOST_TEST_FOREACH( parameters_store::storage_type::value_type const&, v, parameters.all() ) {
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basic_param_ptr param = v.second;
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// Register all parameter's ids in trie.
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BOOST_TEST_FOREACH( parameter_cla_id const&, id, param->cla_ids() ) {
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// This is the trie corresponding to the prefix.
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trie_ptr next_trie = m_param_trie[id.m_prefix];
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if( !next_trie )
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next_trie = m_param_trie[id.m_prefix] = trie_ptr( new rt_cla_detail::parameter_trie );
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// Build the trie, by following name's characters
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// and register this parameter as candidate on each level
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for( size_t index = 0; index < id.m_tag.size(); ++index ) {
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next_trie = next_trie->make_subtrie( id.m_tag[index] );
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next_trie->add_candidate_id( id, param, index == (id.m_tag.size() - 1) );
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}
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}
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}
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}
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bool
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validate_token_format( cstring token, cstring& prefix, cstring& name, cstring& separator, bool& negative_form )
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{
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// Match prefix
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cstring::iterator it = token.begin();
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while( it != token.end() && parameter_cla_id::valid_prefix_char( *it ) )
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++it;
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prefix.assign( token.begin(), it );
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if( prefix.empty() )
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return true;
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// Match name
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while( it != token.end() && parameter_cla_id::valid_name_char( *it ) )
|
|
++it;
|
|
|
|
name.assign( prefix.end(), it );
|
|
|
|
if( name.empty() ) {
|
|
if( prefix == m_end_of_param_indicator )
|
|
return false;
|
|
|
|
BOOST_TEST_I_THROW( format_error() << "Invalid format for an actual argument " << token );
|
|
}
|
|
|
|
// Match value separator
|
|
while( it != token.end() && parameter_cla_id::valid_separator_char( *it ) )
|
|
++it;
|
|
|
|
separator.assign( name.end(), it );
|
|
|
|
// Match negation prefix
|
|
negative_form = !m_negation_prefix.empty() && ( name.substr( 0, m_negation_prefix.size() ) == m_negation_prefix );
|
|
if( negative_form )
|
|
name.trim_left( m_negation_prefix.size() );
|
|
|
|
return true;
|
|
}
|
|
|
|
// C++03: cannot have references as types
|
|
typedef std::pair<parameter_cla_id, basic_param_ptr> locate_result;
|
|
|
|
locate_result
|
|
locate_parameter( trie_ptr curr_trie, cstring name, cstring token )
|
|
{
|
|
std::vector<trie_ptr> typo_candidates;
|
|
std::vector<trie_ptr> next_typo_candidates;
|
|
trie_ptr next_trie;
|
|
|
|
BOOST_TEST_FOREACH( char, c, name ) {
|
|
if( curr_trie ) {
|
|
// locate next subtrie corresponding to the char
|
|
next_trie = curr_trie->get_subtrie( c );
|
|
|
|
if( next_trie )
|
|
curr_trie = next_trie;
|
|
else {
|
|
// Initiate search for typo candicates. We will account for 'wrong char' typo
|
|
// 'missing char' typo and 'extra char' typo
|
|
BOOST_TEST_FOREACH( trie_per_char::value_type const&, typo_cand, curr_trie->m_subtrie ) {
|
|
// 'wrong char' typo
|
|
typo_candidates.push_back( typo_cand.second );
|
|
|
|
// 'missing char' typo
|
|
if( (next_trie = typo_cand.second->get_subtrie( c )) )
|
|
typo_candidates.push_back( next_trie );
|
|
}
|
|
|
|
// 'extra char' typo
|
|
typo_candidates.push_back( curr_trie );
|
|
|
|
curr_trie.reset();
|
|
}
|
|
}
|
|
else {
|
|
// go over existing typo candidates and see if they are still viable
|
|
BOOST_TEST_FOREACH( trie_ptr, typo_cand, typo_candidates ) {
|
|
trie_ptr next_typo_cand = typo_cand->get_subtrie( c );
|
|
|
|
if( next_typo_cand )
|
|
next_typo_candidates.push_back( next_typo_cand );
|
|
}
|
|
|
|
next_typo_candidates.swap( typo_candidates );
|
|
next_typo_candidates.clear();
|
|
}
|
|
}
|
|
|
|
if( !curr_trie ) {
|
|
std::vector<cstring> typo_candidate_names;
|
|
std::set<parameter_cla_id const*> unique_typo_candidate; // !! ?? unordered_set
|
|
typo_candidate_names.reserve( typo_candidates.size() );
|
|
// !! ?? unique_typo_candidate.reserve( typo_candidates.size() );
|
|
|
|
BOOST_TEST_FOREACH( trie_ptr, trie_cand, typo_candidates ) {
|
|
// avoid ambiguos candidate trie
|
|
if( trie_cand->m_id_candidates.size() > 1 )
|
|
continue;
|
|
|
|
BOOST_TEST_FOREACH( parameter_cla_id const&, param_cand, trie_cand->m_id_candidates ) {
|
|
if( !unique_typo_candidate.insert( ¶m_cand ).second )
|
|
continue;
|
|
|
|
typo_candidate_names.push_back( param_cand.m_tag );
|
|
}
|
|
}
|
|
|
|
#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
|
|
BOOST_TEST_I_THROW( unrecognized_param( std::move(typo_candidate_names) )
|
|
<< "An unrecognized parameter in the argument "
|
|
<< token );
|
|
#else
|
|
BOOST_TEST_I_THROW( unrecognized_param( typo_candidate_names )
|
|
<< "An unrecognized parameter in the argument "
|
|
<< token );
|
|
#endif
|
|
}
|
|
|
|
if( curr_trie->m_id_candidates.size() > 1 ) {
|
|
std::vector<cstring> amb_names;
|
|
BOOST_TEST_FOREACH( parameter_cla_id const&, param_id, curr_trie->m_id_candidates )
|
|
amb_names.push_back( param_id.m_tag );
|
|
|
|
#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
|
|
BOOST_TEST_I_THROW( ambiguous_param( std::move( amb_names ) )
|
|
<< "An ambiguous parameter name in the argument " << token );
|
|
#else
|
|
BOOST_TEST_I_THROW( ambiguous_param( amb_names )
|
|
<< "An ambiguous parameter name in the argument " << token );
|
|
#endif
|
|
}
|
|
|
|
return locate_result( curr_trie->m_id_candidates.back().get(), curr_trie->m_param_candidate );
|
|
}
|
|
|
|
// Data members
|
|
cstring m_program_name;
|
|
std::string m_end_of_param_indicator;
|
|
std::string m_negation_prefix;
|
|
str_to_trie m_param_trie;
|
|
};
|
|
|
|
} // namespace cla
|
|
} // namespace runtime
|
|
} // namespace boost
|
|
|
|
#include <boost/test/detail/enable_warnings.hpp>
|
|
|
|
#endif // BOOST_TEST_UTILS_RUNTIME_CLA_PARSER_HPP
|