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- <title>Boost Token Iterator</title>
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- <p><img src="../../../boost.png" alt="C++ Boost" width="277" height=
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- <h1 align="center">Token Iterator</h1>
- <pre>
- template <
- class TokenizerFunc = char_delimiters_separator<char>,
- class Iterator = std::string::const_iterator,
- class Type = std::string
- >
- class token_iterator_generator
- </pre>
- <pre>
- template<class Type, class Iterator, class TokenizerFunc>
- typename token_iterator_generator<TokenizerFunc,Iterator,Type>::type
- make_token_iterator(Iterator begin, Iterator end,const TokenizerFunc& fun)
- </pre>
- <p>The token iterator serves to provide an iterator view of the tokens in a
- parsed sequence.</p>
- <h2>Example</h2>
- <pre>
- /// simple_example_5.cpp
- #include<iostream>
- #include<boost/token_iterator.hpp>
- #include<string>
- int main(){
- using namespace std;
- using namespace boost;
- string s = "12252001";
- int offsets[] = {2,2,4};
- offset_separator f(offsets, offsets+3);
- typedef token_iterator_generator<offset_separator>::type Iter;
- Iter beg = make_token_iterator<string>(s.begin(),s.end(),f);
- Iter end = make_token_iterator<string>(s.end(),s.end(),f);
- // The above statement could also have been what is below
- // Iter end;
- for(;beg!=end;++beg){
- cout << *beg << "\n";
- }
- }
- </pre>
- <p> </p>
- <h3>Template Parameters</h3>
- <table border="1" summary="">
- <tr>
- <th>Parameter</th>
- <th>Description</th>
- </tr>
- <tr>
- <td><tt>TokenizerFunc</tt></td>
- <td>The TokenizerFunction used to parse the sequence.</td>
- </tr>
- <tr>
- <td><tt>Iterator</tt></td>
- <td>The type of the iterator the specifies the sequence.</td>
- </tr>
- <tr>
- <td><tt>Type</tt></td>
- <td>The type of the token, typically string.</td>
- </tr>
- </table>
- <h2>Model of</h2>
- <p>The category of Iterator, up to and including Forward Iterator. Anything
- higher will get scaled down to Forward Iterator.</p>
- <h2>Related Types</h2>
- <table border="1" summary="">
- <tr>
- <td>
- <p align="center"><strong>Type</strong></p>
- </td>
- <td>
- <p align="center"><strong>Remarks</strong></p>
- </td>
- </tr>
- <tr>
- <td>token_iterator_generator::type</td>
- <td>The type of the token iterator.</td>
- </tr>
- </table>
- <h2>Creation</h2>
- <pre>
- template<class Type, class Iterator, class TokenizerFunc>
- typename token_iterator_generator<TokenizerFunc,Iterator,Type>::type
- make_token_iterator(Iterator begin, Iterator end,const TokenizerFunc& fun)
- </pre>
- <table border="1" summary="">
- <tr>
- <td>
- <p align="center"><strong>Parameter</strong></p>
- </td>
- <td>
- <p align="center"><strong>Description</strong></p>
- </td>
- </tr>
- <tr>
- <td>begin</td>
- <td>The beginning of the sequence to be parsed.</td>
- </tr>
- <tr>
- <td>end</td>
- <td>Past the end of the sequence to be parsed.</td>
- </tr>
- <tr>
- <td>fun</td>
- <td>A functor that is a model of TokenizerFunction</td>
- </tr>
- </table>
- <p> </p>
- <hr>
- <p><a href="http://validator.w3.org/check?uri=referer"><img border="0" src=
- "../../doc/images/valid-html401.png" alt="Valid HTML 4.01 Transitional"
- height="31" width="88"></a></p>
- <p>Revised
- <!--webbot bot="Timestamp" s-type="EDITED" s-format="%d %B, %Y" startspan -->25
- December, 2006<!--webbot bot="Timestamp" endspan i-checksum="38518" --></p>
- <p><i>Copyright © 2001 John R. Bandela</i></p>
- <p><i>Distributed under the Boost Software License, Version 1.0. (See
- accompanying file <a href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or
- copy at <a href=
- "http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</a>)</i></p>
- </body>
- </html>
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