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<div class="title">regex_cursor.h</div> </div>
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<a href="a01413.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// class template regex -*- C++ -*-</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> </div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Copyright (C) 2010, 2011 Free Software Foundation, Inc.</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">//</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// This file is part of the GNU ISO C++ Library. This library is free</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// software; you can redistribute it and/or modify it under the</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// terms of the GNU General Public License as published by the</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// Free Software Foundation; either version 3, or (at your option)</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// any later version.</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// This library is distributed in the hope that it will be useful,</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">// GNU General Public License for more details.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">// Under Section 7 of GPL version 3, you are granted additional</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">// permissions described in the GCC Runtime Library Exception, version</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">// 3.1, as published by the Free Software Foundation.</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">// You should have received a copy of the GNU General Public License and</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">// a copy of the GCC Runtime Library Exception along with this program;</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment">// <http://www.gnu.org/licenses/>.</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"></span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment">/**</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> * @file bits/regex_cursor.h</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> * This is an internal header file, included by other library headers.</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"> * Do not attempt to use it directly. @headername{regex}</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">namespace </span>std _GLIBCXX_VISIBILITY(default)</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> {</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="keyword">namespace </span>__regex</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> {</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> _GLIBCXX_BEGIN_NAMESPACE_VERSION</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="comment">// ABC for pattern matching</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keyword">struct </span>_PatternCursor</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  {</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keyword">virtual</span> ~_PatternCursor() { };</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> _M_next() = 0;</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keyword">virtual</span> <span class="keywordtype">bool</span> _M_at_end() <span class="keyword">const</span> = 0;</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  };</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="comment">// Provides a cursor into the specific target string.</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _FwdIterT></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keyword">class </span>_SpecializedCursor</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  : <span class="keyword">public</span> _PatternCursor</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  {</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  _SpecializedCursor(<span class="keyword">const</span> _FwdIterT& __b, <span class="keyword">const</span> _FwdIterT __e)</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  : _M_b(__b), _M_c(__b), _M_e(__e)</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  { }</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keyword">typename</span> std::iterator_traits<_FwdIterT>::value_type</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  _M_current()<span class="keyword"> const</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> *_M_c; }</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordtype">void</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  _M_next()</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  { ++_M_c; }</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  _FwdIterT</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  _M_pos()<span class="keyword"> const</span></div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> _M_c; }</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> </div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keyword">const</span> _FwdIterT&</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  _M_begin()<span class="keyword"> const</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> _M_b; }</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> </div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keyword">const</span> _FwdIterT&</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  _M_end()<span class="keyword"> const</span></div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> _M_e; }</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordtype">bool</span></div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  _M_at_end()<span class="keyword"> const</span></div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> _M_c == _M_e; }</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keyword">private</span>:</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  _FwdIterT _M_b;</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  _FwdIterT _M_c;</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  _FwdIterT _M_e;</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  };</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="comment">// Helper function to create a cursor specialized for an iterator class.</span></div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _FwdIterT></div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keyword">inline</span> _SpecializedCursor<_FwdIterT></div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  __cursor(<span class="keyword">const</span> _FwdIterT& __b, <span class="keyword">const</span> _FwdIterT __e)</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  { <span class="keywordflow">return</span> _SpecializedCursor<_FwdIterT>(__b, __e); }</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> </div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> _GLIBCXX_END_NAMESPACE_VERSION</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> } <span class="comment">// namespace __regex</span></div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> } <span class="comment">// namespace</span></div>
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