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<title>Flex Bison C++ Example: src/position.hh Source File</title>
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<h1>src/position.hh</h1><a href="position_8hh.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001
<a name="l00002"></a>00002 <span class="comment">/* A Bison parser, made by GNU Bison 2.4.1. */</span>
<a name="l00003"></a>00003
<a name="l00004"></a>00004 <span class="comment">/* Positions for Bison parsers in C++</span>
<a name="l00005"></a>00005 <span class="comment"> </span>
<a name="l00006"></a>00006 <span class="comment"> Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.</span>
<a name="l00007"></a>00007 <span class="comment"> </span>
<a name="l00008"></a>00008 <span class="comment"> This program is free software: you can redistribute it and/or modify</span>
<a name="l00009"></a>00009 <span class="comment"> it under the terms of the GNU General Public License as published by</span>
<a name="l00010"></a>00010 <span class="comment"> the Free Software Foundation, either version 3 of the License, or</span>
<a name="l00011"></a>00011 <span class="comment"> (at your option) any later version.</span>
<a name="l00012"></a>00012 <span class="comment"> </span>
<a name="l00013"></a>00013 <span class="comment"> This program is distributed in the hope that it will be useful,</span>
<a name="l00014"></a>00014 <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00015"></a>00015 <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
<a name="l00016"></a>00016 <span class="comment"> GNU General Public License for more details.</span>
<a name="l00017"></a>00017 <span class="comment"> </span>
<a name="l00018"></a>00018 <span class="comment"> You should have received a copy of the GNU General Public License</span>
<a name="l00019"></a>00019 <span class="comment"> along with this program. If not, see <http://www.gnu.org/licenses/>. */</span>
<a name="l00020"></a>00020
<a name="l00021"></a>00021 <span class="comment">/* As a special exception, you may create a larger work that contains</span>
<a name="l00022"></a>00022 <span class="comment"> part or all of the Bison parser skeleton and distribute that work</span>
<a name="l00023"></a>00023 <span class="comment"> under terms of your choice, so long as that work isn't itself a</span>
<a name="l00024"></a>00024 <span class="comment"> parser generator using the skeleton or a modified version thereof</span>
<a name="l00025"></a>00025 <span class="comment"> as a parser skeleton. Alternatively, if you modify or redistribute</span>
<a name="l00026"></a>00026 <span class="comment"> the parser skeleton itself, you may (at your option) remove this</span>
<a name="l00027"></a>00027 <span class="comment"> special exception, which will cause the skeleton and the resulting</span>
<a name="l00028"></a>00028 <span class="comment"> Bison output files to be licensed under the GNU General Public</span>
<a name="l00029"></a>00029 <span class="comment"> License without this special exception.</span>
<a name="l00030"></a>00030 <span class="comment"> </span>
<a name="l00031"></a>00031 <span class="comment"> This special exception was added by the Free Software Foundation in</span>
<a name="l00032"></a>00032 <span class="comment"> version 2.2 of Bison. */</span>
<a name="l00033"></a>00033
<a name="l00039"></a>00039 <span class="preprocessor">#ifndef BISON_POSITION_HH</span>
<a name="l00040"></a>00040 <span class="preprocessor"></span><span class="preprocessor"># define BISON_POSITION_HH</span>
<a name="l00041"></a>00041 <span class="preprocessor"></span>
<a name="l00042"></a>00042 <span class="preprocessor"># include <iostream></span>
<a name="l00043"></a>00043 <span class="preprocessor"># include <string></span>
<a name="l00044"></a>00044 <span class="preprocessor"># include <algorithm></span>
<a name="l00045"></a>00045
<a name="l00046"></a>00046
<a name="l00047"></a>00047 <span class="comment">/* Line 38 of location.cc */</span>
<a name="l00048"></a>00048 <span class="preprocessor">#line 1 "[Bison:b4_percent_define_default]"</span>
<a name="l00049"></a>00049 <span class="preprocessor"></span>
<a name="l00050"></a>00050 <span class="keyword">namespace </span>example {
<a name="l00051"></a>00051
<a name="l00052"></a>00052 <span class="comment">/* Line 38 of location.cc */</span>
<a name="l00053"></a>00053 <span class="preprocessor">#line 54 "position.hh"</span>
<a name="l00055"></a><a class="code" href="classexample_1_1position.html">00055</a> <span class="preprocessor"> class position</span>
<a name="l00056"></a>00056 <span class="preprocessor"></span> {
<a name="l00057"></a>00057 <span class="keyword">public</span>:
<a name="l00058"></a>00058
<a name="l00060"></a><a class="code" href="classexample_1_1position.html#d697514601f21b97a97a61c4410e592c">00060</a> <a class="code" href="classexample_1_1position.html" title="Abstract a position.">position</a> ()
<a name="l00061"></a>00061 : filename (0), line (1), column (1)
<a name="l00062"></a>00062 {
<a name="l00063"></a>00063 }
<a name="l00064"></a>00064
<a name="l00065"></a>00065
<a name="l00067"></a><a class="code" href="classexample_1_1position.html#0b2927172dad066cdb0f2c0c8b9b0a96">00067</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> initialize (std::string* fn)
<a name="l00068"></a>00068 {
<a name="l00069"></a>00069 filename = fn;
<a name="l00070"></a>00070 line = 1;
<a name="l00071"></a>00071 column = 1;
<a name="l00072"></a>00072 }
<a name="l00073"></a>00073
<a name="l00076"></a>00076 <span class="keyword">public</span>:
<a name="l00078"></a><a class="code" href="classexample_1_1position.html#5bf9ea88111fc15a2be19d118c66a95d">00078</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> lines (<span class="keywordtype">int</span> count = 1)
<a name="l00079"></a>00079 {
<a name="l00080"></a>00080 column = 1;
<a name="l00081"></a>00081 line += count;
<a name="l00082"></a>00082 }
<a name="l00083"></a>00083
<a name="l00085"></a><a class="code" href="classexample_1_1position.html#d447ed088ff7dbc4efdfc2e307d63d1f">00085</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> columns (<span class="keywordtype">int</span> count = 1)
<a name="l00086"></a>00086 {
<a name="l00087"></a>00087 column = std::max (1u, column + count);
<a name="l00088"></a>00088 }
<a name="l00091"></a>00091 <span class="keyword">public</span>:
<a name="l00093"></a><a class="code" href="classexample_1_1position.html#f0bddee6cb090d7d8796d0226d2a41f1">00093</a> std::string* filename;
<a name="l00095"></a><a class="code" href="classexample_1_1position.html#0a0bcaae3b937c8fbe2dcc2aa206beec">00095</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> line;
<a name="l00097"></a><a class="code" href="classexample_1_1position.html#cdab5c856e97fc74613117a8304340dd">00097</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> column;
<a name="l00098"></a>00098 };
<a name="l00099"></a>00099
<a name="l00101"></a>00101 <span class="keyword">inline</span> <span class="keyword">const</span> <a class="code" href="classexample_1_1position.html" title="Abstract a position.">position</a>&
<a name="l00102"></a><a class="code" href="namespaceexample.html#02ee68422c93270b3ffe561715c7c211">00102</a> <a class="code" href="namespaceexample.html#6a1a320eb30117289a70be3cc20fcba0" title="Add and assign a location.">operator+= </a>(<a class="code" href="classexample_1_1position.html" title="Abstract a position.">position</a>& res, <span class="keyword">const</span> <span class="keywordtype">int</span> width)
<a name="l00103"></a>00103 {
<a name="l00104"></a>00104 res.<a class="code" href="classexample_1_1position.html#d447ed088ff7dbc4efdfc2e307d63d1f" title="(column related) Advance to the COUNT next columns.">columns</a> (width);
<a name="l00105"></a>00105 <span class="keywordflow">return</span> res;
<a name="l00106"></a>00106 }
<a name="l00107"></a>00107
<a name="l00109"></a>00109 <span class="keyword">inline</span> <span class="keyword">const</span> position
<a name="l00110"></a><a class="code" href="namespaceexample.html#749b87aac7a436e54888dedc8e278408">00110</a> <a class="code" href="namespaceexample.html#89372a147befefadf885a49e91bf178a" title="Join two location objects to create a location.">operator+ </a>(<span class="keyword">const</span> <a class="code" href="classexample_1_1position.html" title="Abstract a position.">position</a>& begin, <span class="keyword">const</span> <span class="keywordtype">int</span> width)
<a name="l00111"></a>00111 {
<a name="l00112"></a>00112 <a class="code" href="classexample_1_1position.html" title="Abstract a position.">position</a> res = begin;
<a name="l00113"></a>00113 <span class="keywordflow">return</span> res += width;
<a name="l00114"></a>00114 }
<a name="l00115"></a>00115
<a name="l00117"></a>00117 <span class="keyword">inline</span> <span class="keyword">const</span> position&
<a name="l00118"></a><a class="code" href="namespaceexample.html#52597b3bd50d7f8395addd568df07108">00118</a> <a class="code" href="namespaceexample.html#52597b3bd50d7f8395addd568df07108" title="Add and assign a position.">operator-= </a>(<a class="code" href="classexample_1_1position.html" title="Abstract a position.">position</a>& res, <span class="keyword">const</span> <span class="keywordtype">int</span> width)
<a name="l00119"></a>00119 {
<a name="l00120"></a>00120 <span class="keywordflow">return</span> res += -width;
<a name="l00121"></a>00121 }
<a name="l00122"></a>00122
<a name="l00124"></a>00124 <span class="keyword">inline</span> <span class="keyword">const</span> position
<a name="l00125"></a><a class="code" href="namespaceexample.html#b6cb659f2190556d57885b763ac2f728">00125</a> <a class="code" href="namespaceexample.html#b6cb659f2190556d57885b763ac2f728" title="Add two position objects.">operator- </a>(<span class="keyword">const</span> <a class="code" href="classexample_1_1position.html" title="Abstract a position.">position</a>& begin, <span class="keyword">const</span> <span class="keywordtype">int</span> width)
<a name="l00126"></a>00126 {
<a name="l00127"></a>00127 <span class="keywordflow">return</span> begin + -width;
<a name="l00128"></a>00128 }
<a name="l00129"></a>00129
<a name="l00131"></a>00131 <span class="keyword">inline</span> <span class="keywordtype">bool</span>
<a name="l00132"></a><a class="code" href="namespaceexample.html#41eca92d18c869383fa7a715c9d38232">00132</a> <a class="code" href="namespaceexample.html#a68799a72a42f5df1011f26ae428a16f" title="Compare two location objects.">operator== </a>(<span class="keyword">const</span> <a class="code" href="classexample_1_1position.html" title="Abstract a position.">position</a>& pos1, <span class="keyword">const</span> <a class="code" href="classexample_1_1position.html" title="Abstract a position.">position</a>& pos2)
<a name="l00133"></a>00133 {
<a name="l00134"></a>00134 <span class="keywordflow">return</span>
<a name="l00135"></a>00135 (pos1.<a class="code" href="classexample_1_1position.html#f0bddee6cb090d7d8796d0226d2a41f1" title="File name to which this position refers.">filename</a> == pos2.<a class="code" href="classexample_1_1position.html#f0bddee6cb090d7d8796d0226d2a41f1" title="File name to which this position refers.">filename</a>
<a name="l00136"></a>00136 || (pos1.<a class="code" href="classexample_1_1position.html#f0bddee6cb090d7d8796d0226d2a41f1" title="File name to which this position refers.">filename</a> && pos2.<a class="code" href="classexample_1_1position.html#f0bddee6cb090d7d8796d0226d2a41f1" title="File name to which this position refers.">filename</a> && *pos1.<a class="code" href="classexample_1_1position.html#f0bddee6cb090d7d8796d0226d2a41f1" title="File name to which this position refers.">filename</a> == *pos2.<a class="code" href="classexample_1_1position.html#f0bddee6cb090d7d8796d0226d2a41f1" title="File name to which this position refers.">filename</a>))
<a name="l00137"></a>00137 && pos1.<a class="code" href="classexample_1_1position.html#0a0bcaae3b937c8fbe2dcc2aa206beec" title="Current line number.">line</a> == pos2.<a class="code" href="classexample_1_1position.html#0a0bcaae3b937c8fbe2dcc2aa206beec" title="Current line number.">line</a> && pos1.<a class="code" href="classexample_1_1position.html#cdab5c856e97fc74613117a8304340dd" title="Current column number.">column</a> == pos2.<a class="code" href="classexample_1_1position.html#cdab5c856e97fc74613117a8304340dd" title="Current column number.">column</a>;
<a name="l00138"></a>00138 }
<a name="l00139"></a>00139
<a name="l00141"></a>00141 <span class="keyword">inline</span> <span class="keywordtype">bool</span>
<a name="l00142"></a><a class="code" href="namespaceexample.html#f82508fee02df7922dae5a182b80b548">00142</a> <a class="code" href="namespaceexample.html#2d1471a6dd6cdfb75001fb44df444110" title="Compare two location objects.">operator!= </a>(<span class="keyword">const</span> <a class="code" href="classexample_1_1position.html" title="Abstract a position.">position</a>& pos1, <span class="keyword">const</span> <a class="code" href="classexample_1_1position.html" title="Abstract a position.">position</a>& pos2)
<a name="l00143"></a>00143 {
<a name="l00144"></a>00144 <span class="keywordflow">return</span> !(pos1 == pos2);
<a name="l00145"></a>00145 }
<a name="l00146"></a>00146
<a name="l00151"></a>00151 <span class="keyword">inline</span> std::ostream&
<a name="l00152"></a><a class="code" href="namespaceexample.html#b776d57e6954f0e84d5fec0f10acd613">00152</a> <a class="code" href="namespaceexample.html#42e9c113ddb6666d26c0ad11d8950bf6" title="Intercept output stream redirection.">operator<< </a>(std::ostream& ostr, <span class="keyword">const</span> <a class="code" href="classexample_1_1position.html" title="Abstract a position.">position</a>& pos)
<a name="l00153"></a>00153 {
<a name="l00154"></a>00154 <span class="keywordflow">if</span> (pos.<a class="code" href="classexample_1_1position.html#f0bddee6cb090d7d8796d0226d2a41f1" title="File name to which this position refers.">filename</a>)
<a name="l00155"></a>00155 ostr << *pos.<a class="code" href="classexample_1_1position.html#f0bddee6cb090d7d8796d0226d2a41f1" title="File name to which this position refers.">filename</a> << <span class="charliteral">':'</span>;
<a name="l00156"></a>00156 <span class="keywordflow">return</span> ostr << pos.<a class="code" href="classexample_1_1position.html#0a0bcaae3b937c8fbe2dcc2aa206beec" title="Current line number.">line</a> << <span class="charliteral">'.'</span> << pos.<a class="code" href="classexample_1_1position.html#cdab5c856e97fc74613117a8304340dd" title="Current column number.">column</a>;
<a name="l00157"></a>00157 }
<a name="l00158"></a>00158
<a name="l00159"></a>00159
<a name="l00160"></a>00160 <span class="comment">/* Line 144 of location.cc */</span>
<a name="l00161"></a>00161 <span class="preprocessor">#line 1 "[Bison:b4_percent_define_default]"</span>
<a name="l00162"></a>00162 <span class="preprocessor"></span>
<a name="l00163"></a>00163 } <span class="comment">// example</span>
<a name="l00164"></a>00164
<a name="l00165"></a>00165 <span class="comment">/* Line 144 of location.cc */</span>
<a name="l00166"></a>00166 <span class="preprocessor">#line 167 "position.hh"</span>
<a name="l00167"></a>00167 <span class="preprocessor"></span><span class="preprocessor">#endif // not BISON_POSITION_HH</span>
</pre></div></div>
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