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annotate DEPENDENCIES/generic/include/boost/spirit/home/classic/symbols/impl/symbols.ipp @ 133:4acb5d8d80b6 tip

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Don't fail environmental check if README.md exists (but .txt and no-suffix don't)
author Chris Cannam
date Tue, 30 Jul 2019 12:25:44 +0100
parents 2665513ce2d3
children
rev   line source
Chris@16 1 /*=============================================================================
Chris@16 2 Copyright (c) 2001-2003 Joel de Guzman
Chris@16 3 http://spirit.sourceforge.net/
Chris@16 4
Chris@16 5 Use, modification and distribution is subject to the Boost Software
Chris@16 6 License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
Chris@16 7 http://www.boost.org/LICENSE_1_0.txt)
Chris@16 8 =============================================================================*/
Chris@16 9 #ifndef BOOST_SPIRIT_SYMBOLS_IPP
Chris@16 10 #define BOOST_SPIRIT_SYMBOLS_IPP
Chris@16 11
Chris@16 12 ///////////////////////////////////////////////////////////////////////////////
Chris@16 13 #include <boost/spirit/home/classic/symbols/impl/tst.ipp>
Chris@16 14 #include <boost/detail/workaround.hpp>
Chris@16 15
Chris@16 16 // MSVC: void warning about the use of 'this' pointer in constructors
Chris@16 17 #if defined(BOOST_MSVC)
Chris@16 18 #pragma warning(push)
Chris@16 19 #pragma warning(disable : 4355)
Chris@16 20 #endif
Chris@16 21
Chris@16 22 ///////////////////////////////////////////////////////////////////////////////
Chris@16 23 namespace boost { namespace spirit {
Chris@16 24
Chris@16 25 BOOST_SPIRIT_CLASSIC_NAMESPACE_BEGIN
Chris@16 26
Chris@16 27 ///////////////////////////////////////////////////////////////////////////////
Chris@16 28 //
Chris@16 29 // symbols class implementation
Chris@16 30 //
Chris@16 31 ///////////////////////////////////////////////////////////////////////////////
Chris@16 32 template <typename T, typename CharT, typename SetT>
Chris@16 33 inline symbols<T, CharT, SetT>::symbols()
Chris@16 34 : SetT()
Chris@16 35 , add(*this)
Chris@16 36 {
Chris@16 37 }
Chris@16 38
Chris@16 39 //////////////////////////////////
Chris@16 40 template <typename T, typename CharT, typename SetT>
Chris@16 41 symbols<T, CharT, SetT>::symbols(symbols const& other)
Chris@16 42 : SetT(other)
Chris@16 43 // Tru64 CXX seems to be confused by the explicit call of the default
Chris@16 44 // constructor and generates wrong code which invalidates the just contructed
Chris@16 45 // first base class in the line above.
Chris@16 46 #if !BOOST_WORKAROUND(__DECCXX_VER, BOOST_TESTED_AT(60590041))
Chris@16 47 , parser<symbols<T, CharT, SetT> >()
Chris@16 48 #endif
Chris@16 49 , add(*this)
Chris@16 50 {
Chris@16 51 }
Chris@16 52
Chris@16 53 //////////////////////////////////
Chris@16 54 template <typename T, typename CharT, typename SetT>
Chris@16 55 inline symbols<T, CharT, SetT>::~symbols()
Chris@16 56 {}
Chris@16 57
Chris@16 58 //////////////////////////////////
Chris@16 59 template <typename T, typename CharT, typename SetT>
Chris@16 60 inline symbols<T, CharT, SetT>&
Chris@16 61 symbols<T, CharT, SetT>::operator=(symbols const& other)
Chris@16 62 {
Chris@16 63 SetT::operator=(other);
Chris@16 64 return *this;
Chris@16 65 }
Chris@16 66
Chris@16 67 //////////////////////////////////
Chris@16 68 template <typename T, typename CharT, typename SetT>
Chris@16 69 inline symbol_inserter<T, SetT> const&
Chris@16 70 symbols<T, CharT, SetT>::operator=(CharT const* str)
Chris@16 71 {
Chris@16 72 return add, str;
Chris@16 73 }
Chris@16 74
Chris@16 75 ///////////////////////////////////////////////////////////////////////////////
Chris@16 76 //
Chris@16 77 // Symbol table utilities
Chris@16 78 //
Chris@16 79 ///////////////////////////////////////////////////////////////////////////////
Chris@16 80 template <typename T, typename CharT, typename SetT>
Chris@16 81 inline T*
Chris@16 82 find(symbols<T, CharT, SetT> const& table, CharT const* sym)
Chris@16 83 {
Chris@16 84 CharT const* last = sym;
Chris@16 85 while (*last)
Chris@16 86 last++;
Chris@16 87 scanner<CharT const *> scan(sym, last);
Chris@16 88 T* result = table.find(scan);
Chris@16 89 return scan.at_end()? result: 0;
Chris@16 90 }
Chris@16 91
Chris@16 92 //////////////////////////////////
Chris@16 93 template <typename T, typename CharT, typename SetT>
Chris@16 94 inline T*
Chris@16 95 add(symbols<T, CharT, SetT>& table, CharT const* sym, T const& data)
Chris@16 96 {
Chris@16 97 CharT const* first = sym;
Chris@16 98 CharT const* last = sym;
Chris@16 99 while (*last)
Chris@16 100 last++;
Chris@16 101 scanner<CharT const *> scan(first, last);
Chris@16 102 if (table.find(scan) && scan.at_end())
Chris@16 103 return 0; // symbol already contained in symbol table
Chris@16 104 table.add(sym, last, data);
Chris@16 105 first = sym;
Chris@16 106 return table.find(scan); // refind the inserted symbol
Chris@16 107 }
Chris@16 108
Chris@16 109 ///////////////////////////////////////////////////////////////////////////////
Chris@16 110 BOOST_SPIRIT_CLASSIC_NAMESPACE_END
Chris@16 111
Chris@16 112 }} // namespace boost::spirit
Chris@16 113
Chris@16 114 #if defined(BOOST_MSVC)
Chris@16 115 #pragma warning(pop)
Chris@16 116 #endif
Chris@16 117
Chris@16 118 #endif