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99 lines
2.8 KiB
C++
99 lines
2.8 KiB
C++
// Boost tokenizer.hpp -----------------------------------------------------//
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// (c) Copyright Jeremy Siek and John R. Bandela 2001.
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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// See http://www.boost.org/libs/tokenizer for documenation
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// Revision History:
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// 03 Jul 2003 John Bandela
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// Converted to new iterator adapter
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// 02 Feb 2002 Jeremy Siek
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// Removed tabs and a little cleanup.
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#ifndef BOOST_TOKENIZER_JRB070303_HPP_
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#define BOOST_TOKENIZER_JRB070303_HPP_
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#include <boost/token_iterator.hpp>
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namespace boost {
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//===========================================================================
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// A container-view of a tokenized "sequence"
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template <
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typename TokenizerFunc = char_delimiters_separator<char>,
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typename Iterator = std::string::const_iterator,
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typename Type = std::string
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>
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class tokenizer {
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private:
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typedef token_iterator_generator<TokenizerFunc,Iterator,Type> TGen;
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// It seems that MSVC does not like the unqualified use of iterator,
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// Thus we use iter internally when it is used unqualified and
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// the users of this class will always qualify iterator.
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typedef typename TGen::type iter;
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public:
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typedef iter iterator;
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typedef iter const_iterator;
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typedef Type value_type;
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typedef value_type& reference;
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typedef const value_type& const_reference;
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typedef value_type* pointer;
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typedef const pointer const_pointer;
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typedef void size_type;
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typedef void difference_type;
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tokenizer(Iterator first, Iterator last,
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const TokenizerFunc& f = TokenizerFunc())
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: first_(first), last_(last), f_(f) { }
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template <typename Container>
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tokenizer(const Container& c)
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: first_(c.begin()), last_(c.end()), f_() { }
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template <typename Container>
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tokenizer(const Container& c,const TokenizerFunc& f)
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: first_(c.begin()), last_(c.end()), f_(f) { }
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void assign(Iterator first, Iterator last){
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first_ = first;
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last_ = last;
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}
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void assign(Iterator first, Iterator last, const TokenizerFunc& f){
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assign(first,last);
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f_ = f;
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}
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template <typename Container>
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void assign(const Container& c){
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assign(c.begin(),c.end());
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}
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template <typename Container>
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void assign(const Container& c, const TokenizerFunc& f){
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assign(c.begin(),c.end(),f);
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}
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iter begin() const { return iter(f_,first_,last_); }
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iter end() const { return iter(f_,last_,last_); }
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private:
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Iterator first_;
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Iterator last_;
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TokenizerFunc f_;
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};
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} // namespace boost
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#endif
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