[857] | 1 | // (C) Copyright Gennadiy Rozental 2005.
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| 2 | // Use, modification, and distribution are subject to the
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| 3 | // Boost Software License, Version 1.0. (See accompanying file
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| 4 | // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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| 5 |
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| 6 | // See http://www.boost.org/libs/test for the library home page.
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| 7 | //
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| 8 | // File : $RCSfile: argv_traverser.ipp,v $
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| 9 | //
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| 10 | // Version : $Revision: 1.3 $
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| 11 | //
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| 12 | // Description : implements facility to hide input traversing details
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| 13 | // ***************************************************************************
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| 14 |
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| 15 | #ifndef BOOST_RT_CLA_ARGV_TRAVERSER_IPP_070604GER
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| 16 | #define BOOST_RT_CLA_ARGV_TRAVERSER_IPP_070604GER
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| 17 |
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| 18 | // Boost.Runtime.Parameter
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| 19 | #include <boost/test/utils/runtime/trace.hpp>
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| 20 |
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| 21 | #include <boost/test/utils/runtime/cla/argv_traverser.hpp>
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| 22 |
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| 23 | // STL
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| 24 | #include <memory>
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| 25 | #include <cstring>
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| 26 |
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| 27 | #ifdef BOOST_NO_STDC_NAMESPACE
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| 28 | namespace std { using ::memcpy; }
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| 29 | #endif
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| 30 |
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| 31 | namespace boost {
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| 32 |
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| 33 | namespace BOOST_RT_PARAM_NAMESPACE {
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| 34 |
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| 35 | namespace cla {
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| 36 |
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| 37 | // ************************************************************************** //
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| 38 | // ************** runtime::cla::argv_traverser ************** //
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| 39 | // ************************************************************************** //
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| 40 |
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| 41 | BOOST_RT_PARAM_INLINE
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| 42 | argv_traverser::argv_traverser()
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| 43 | : p_ignore_mismatch( false ), p_separator( BOOST_RT_PARAM_LITERAL( ' ' ) )
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| 44 | {
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| 45 | }
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| 46 |
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| 47 | //____________________________________________________________________________//
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| 48 |
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| 49 | BOOST_RT_PARAM_INLINE void
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| 50 | argv_traverser::init( int argc, char_type** argv )
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| 51 | {
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| 52 | for( int index = 1; index < argc; ++index ) {
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| 53 | m_buffer += argv[index];
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| 54 | if( index != argc-1 )
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| 55 | m_buffer += BOOST_RT_PARAM_LITERAL( ' ' );
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| 56 | }
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| 57 |
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| 58 | m_remainder.reset( new char_type[m_buffer.size()+1] );
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| 59 | m_remainder_size = 0;
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| 60 | m_work_buffer = m_buffer;
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| 61 | m_commited_end = m_work_buffer.begin();
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| 62 |
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| 63 | BOOST_RT_PARAM_TRACE( "Input buffer: " << m_buffer );
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| 64 |
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| 65 | next_token();
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| 66 | }
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| 67 |
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| 68 | //____________________________________________________________________________//
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| 69 |
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| 70 | BOOST_RT_PARAM_INLINE void
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| 71 | argv_traverser::remainder( int& argc, char_type** argv )
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| 72 | {
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| 73 | argc = 1;
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| 74 | std::size_t pos = 0;
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| 75 | while(pos < m_remainder_size ) {
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| 76 | argv[argc++] = m_remainder.get() + pos;
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| 77 |
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| 78 | pos = std::find( m_remainder.get() + pos, m_remainder.get() + m_remainder_size,
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| 79 | BOOST_RT_PARAM_LITERAL( ' ' ) ) - m_remainder.get();
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| 80 | m_remainder[pos++] = BOOST_RT_PARAM_LITERAL( '\0' );
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| 81 | }
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| 82 | }
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| 83 |
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| 84 | //____________________________________________________________________________//
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| 85 |
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| 86 | BOOST_RT_PARAM_INLINE cstring
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| 87 | argv_traverser::token() const
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| 88 | {
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| 89 | return m_token;
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| 90 | }
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| 91 |
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| 92 | //____________________________________________________________________________//
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| 93 |
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| 94 | BOOST_RT_PARAM_INLINE void
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| 95 | argv_traverser::next_token()
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| 96 | {
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| 97 | if( m_work_buffer.is_empty() )
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| 98 | return;
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| 99 |
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| 100 | m_work_buffer.trim_left( m_token.size() ); // skip remainder of current token
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| 101 |
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| 102 | if( m_work_buffer.size() != m_buffer.size() ) // !! is there a better way to identify first token
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| 103 | m_work_buffer.trim_left( 1 ); // skip separator if not first token;
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| 104 |
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| 105 | m_token.assign( m_work_buffer.begin(),
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| 106 | std::find( m_work_buffer.begin(), m_work_buffer.end(), p_separator ) );
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| 107 | }
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| 108 |
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| 109 | //____________________________________________________________________________//
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| 110 |
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| 111 | BOOST_RT_PARAM_INLINE cstring
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| 112 | argv_traverser::input() const
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| 113 | {
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| 114 | return m_work_buffer;
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| 115 | }
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| 116 |
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| 117 | //____________________________________________________________________________//
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| 118 |
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| 119 | BOOST_RT_PARAM_INLINE void
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| 120 | argv_traverser::trim( std::size_t size )
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| 121 | {
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| 122 | m_work_buffer.trim_left( size );
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| 123 |
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| 124 | if( size <= m_token.size() )
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| 125 | m_token.trim_left( size );
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| 126 | else {
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| 127 | m_token.assign( m_work_buffer.begin(),
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| 128 | std::find( m_work_buffer.begin(), m_work_buffer.end(), p_separator ) );
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| 129 | }
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| 130 | }
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| 131 |
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| 132 | //____________________________________________________________________________//
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| 133 |
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| 134 | BOOST_RT_PARAM_INLINE bool
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| 135 | argv_traverser::match_front( cstring str )
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| 136 | {
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| 137 | return m_work_buffer.size() < str.size() ? false : m_work_buffer.substr( 0, str.size() ) == str;
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| 138 | }
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| 139 |
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| 140 | //____________________________________________________________________________//
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| 141 |
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| 142 | BOOST_RT_PARAM_INLINE bool
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| 143 | argv_traverser::match_front( char_type c )
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| 144 | {
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| 145 | return first_char( m_work_buffer ) == c;
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| 146 | }
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| 147 |
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| 148 | //____________________________________________________________________________//
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| 149 |
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| 150 | BOOST_RT_PARAM_INLINE bool
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| 151 | argv_traverser::eoi() const
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| 152 | {
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| 153 | return m_work_buffer.is_empty();
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| 154 | }
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| 155 |
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| 156 | //____________________________________________________________________________//
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| 157 |
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| 158 | BOOST_RT_PARAM_INLINE void
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| 159 | argv_traverser::commit()
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| 160 | {
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| 161 | m_commited_end = m_work_buffer.begin();
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| 162 | }
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| 163 |
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| 164 | //____________________________________________________________________________//
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| 165 |
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| 166 | BOOST_RT_PARAM_INLINE void
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| 167 | argv_traverser::rollback()
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| 168 | {
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| 169 | m_work_buffer.assign( m_commited_end, m_work_buffer.end() );
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| 170 | m_token.assign( m_work_buffer.begin(),
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| 171 | std::find( m_work_buffer.begin(), m_work_buffer.end(), p_separator ) );
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| 172 |
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| 173 | }
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| 174 |
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| 175 | //____________________________________________________________________________//
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| 176 |
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| 177 | BOOST_RT_PARAM_INLINE std::size_t
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| 178 | argv_traverser::input_pos() const
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| 179 | {
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| 180 | return m_work_buffer.begin() - m_commited_end;
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| 181 | }
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| 182 |
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| 183 | //____________________________________________________________________________//
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| 184 |
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| 185 | BOOST_RT_PARAM_INLINE bool
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| 186 | argv_traverser::handle_mismatch()
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| 187 | {
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| 188 | if( !p_ignore_mismatch )
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| 189 | return false;
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| 190 |
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| 191 | std::memcpy( m_remainder.get() + m_remainder_size, token().begin(), token().size() );
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| 192 | m_remainder_size += token().size();
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| 193 | m_remainder[m_remainder_size++] = p_separator;
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| 194 |
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| 195 | next_token();
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| 196 | commit();
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| 197 |
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| 198 | return true;
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| 199 | }
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| 200 |
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| 201 | //____________________________________________________________________________//
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| 202 |
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| 203 | } // namespace cla
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| 204 |
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| 205 | } // namespace BOOST_RT_PARAM_NAMESPACE
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| 206 |
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| 207 | } // namespace boost
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| 208 |
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| 209 | // ************************************************************************** //
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| 210 | // Revision History:
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| 211 | //
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| 212 | // $Log: argv_traverser.ipp,v $
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| 213 | // Revision 1.3 2005/05/05 05:55:45 rogeeff
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| 214 | // portability fixes
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| 215 | //
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| 216 | // Revision 1.2 2005/05/03 05:02:49 rogeeff
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| 217 | // como fixes
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| 218 | //
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| 219 | // Revision 1.1 2005/04/12 06:42:43 rogeeff
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| 220 | // Runtime.Param library initial commit
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| 221 | //
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| 222 | // ************************************************************************** //
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| 223 |
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| 224 | #endif // BOOST_RT_CLA_ARGV_TRAVERSER_IPP_070604GER
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