diff -r 000000000000 -r bde4ae8d615e os/ossrv/ossrv_pub/boost_apis/boost/token_iterator.hpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/os/ossrv/ossrv_pub/boost_apis/boost/token_iterator.hpp Fri Jun 15 03:10:57 2012 +0200 @@ -0,0 +1,128 @@ +// Boost token_iterator.hpp -------------------------------------------------// + +// Copyright John R. Bandela 2001 +// Distributed under the Boost Software License, Version 1.0. (See +// accompanying file LICENSE_1_0.txt or copy at +// http://www.boost.org/LICENSE_1_0.txt) + +// See http://www.boost.org/libs/tokenizer for documentation. + +// Revision History: +// 16 Jul 2003 John Bandela +// Allowed conversions from convertible base iterators +// 03 Jul 2003 John Bandela +// Converted to new iterator adapter + + + +#ifndef BOOST_TOKENIZER_POLICY_JRB070303_HPP_ +#define BOOST_TOKENIZER_POLICY_JRB070303_HPP_ + +#include +#include +#include +#include +#include + +namespace boost +{ + template + class token_iterator + : public iterator_facade< + token_iterator + , Type + , typename detail::minimum_category< + forward_traversal_tag + , typename iterator_traversal::type + >::type + , const Type& + > + { + + friend class iterator_core_access; + + TokenizerFunc f_; + Iterator begin_; + Iterator end_; + bool valid_; + Type tok_; + + void increment(){ + BOOST_ASSERT(valid_); + valid_ = f_(begin_,end_,tok_); + } + + const Type& dereference() const { + BOOST_ASSERT(valid_); + return tok_; + } + template + bool equal(const Other& a) const{ + return (a.valid_ && valid_) + ?( (a.begin_==begin_) && (a.end_ == end_) ) + :(a.valid_==valid_); + + } + + void initialize(){ + if(valid_) return; + f_.reset(); + valid_ = (begin_ != end_)? + f_(begin_,end_,tok_):false; + } + public: + token_iterator():begin_(),end_(),valid_(false),tok_() { } + + token_iterator(TokenizerFunc f, Iterator begin, Iterator e = Iterator()) + : f_(f),begin_(begin),end_(e),valid_(false),tok_(){ initialize(); } + + token_iterator(Iterator begin, Iterator e = Iterator()) + : f_(),begin_(begin),end_(e),valid_(false),tok_() {initialize();} + + template + token_iterator( + token_iterator const& t + , typename enable_if_convertible::type* = 0) + : f_(t.tokenizer_function()),begin_(t.base()) + ,end_(t.end()),valid_(t.at_end()),tok_(t.current_token()) {} + + Iterator base()const{return begin_;} + + Iterator end()const{return end_;}; + + TokenizerFunc tokenizer_function()const{return f_;} + + Type current_token()const{return tok_;} + + bool at_end()const{return valid_;} + + + + + }; + template < + class TokenizerFunc = char_delimiters_separator, + class Iterator = std::string::const_iterator, + class Type = std::string + > + class token_iterator_generator { + + private: + public: + typedef token_iterator type; + }; + + + // Type has to be first because it needs to be explicitly specified + // because there is no way the function can deduce it. + template + typename token_iterator_generator::type + make_token_iterator(Iterator begin, Iterator end,const TokenizerFunc& fun){ + typedef typename + token_iterator_generator::type ret_type; + return ret_type(fun,begin,end); + } + +} // namespace boost + +#endif