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<hr><h1>split.cc</h1><a href="split_8cc.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 <span class="comment">/*</span>
00002 <span class="comment"> *</span>
00003 <span class="comment"> * This file is part of the PCRE++ Class Library.</span>
00004 <span class="comment"> *</span>
00005 <span class="comment"> * By accessing this software, PCRE++, you are duly informed</span>
00006 <span class="comment"> * of and agree to be bound by the conditions described below</span>
00007 <span class="comment"> * in this notice:</span>
00008 <span class="comment"> *</span>
00009 <span class="comment"> * This software product, PCRE++, is developed by Thomas Linden</span>
00010 <span class="comment"> * and copyrighted (C) 2002-2003 by Thomas Linden,with all rights </span>
00011 <span class="comment"> * reserved.</span>
00012 <span class="comment"> *</span>
00013 <span class="comment"> * There is no charge for PCRE++ software. You can redistribute</span>
00014 <span class="comment"> * it and/or modify it under the terms of the GNU Lesser General</span>
00015 <span class="comment"> * Public License, which is incorporated by reference herein.</span>
00016 <span class="comment"> *</span>
00017 <span class="comment"> * PCRE++ is distributed WITHOUT ANY WARRANTY, IMPLIED OR EXPRESS,</span>
00018 <span class="comment"> * OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE or that</span>
00019 <span class="comment"> * the use of it will not infringe on any third party's intellec-</span>
00020 <span class="comment"> * tual property rights.</span>
00021 <span class="comment"> *</span>
00022 <span class="comment"> * You should have received a copy of the GNU Lesser General Public</span>
00023 <span class="comment"> * License along with PCRE++. Copies can also be obtained from:</span>
00024 <span class="comment"> *</span>
00025 <span class="comment"> * http://www.gnu.org/licenses/lgpl.txt</span>
00026 <span class="comment"> *</span>
00027 <span class="comment"> * or by writing to:</span>
00028 <span class="comment"> *</span>
00029 <span class="comment"> * Free Software Foundation, Inc.</span>
00030 <span class="comment"> * 59 Temple Place, Suite 330</span>
00031 <span class="comment"> * Boston, MA 02111-1307</span>
00032 <span class="comment"> * USA</span>
00033 <span class="comment"> *</span>
00034 <span class="comment"> * Or contact:</span>
00035 <span class="comment"> *</span>
00036 <span class="comment"> * "Thomas Linden" <tom@daemon.de></span>
00037 <span class="comment"> *</span>
00038 <span class="comment"> *</span>
00039 <span class="comment"> */</span>
00040
00041
00042 <span class="preprocessor">#include "<a class="code" href="pcre++_8h.html">pcre++.h</a>"</span>
00043
00044 <span class="keyword">using</span> <span class="keyword">namespace </span>std;
00045 <span class="keyword">using</span> <span class="keyword">namespace </span>pcrepp;
00046
00047 <span class="comment">/*</span>
00048 <span class="comment"> * split method and family</span>
00049 <span class="comment"> */</span>
00050
00051 vector<string> Pcre::_split(<span class="keyword">const</span> string& piece, <span class="keywordtype">int</span> limit, <span class="keywordtype">int</span> start_offset, <span class="keywordtype">int</span> end_offset) {
00052 vector<string> Splitted;
00053 <span class="comment">/* _expression will be used as delimiter */</span>
00054 <span class="keywordflow">if</span>(_expression.length() == 1) {
00055 <span class="comment">/* use the plain c++ way, ignore the pre-compiled p_pcre */</span>
00056 string buffer, _delimiter, _piece;
00057 <span class="keywordtype">char</span> z;
00058 <span class="keywordflow">if</span>(case_t) {
00059 z = toupper(_expression[0]);
00060 <span class="keywordflow">for</span>(size_t pos=0; pos < piece.length(); pos++) {
00061 _piece += (char)toupper(piece[pos]);
00062 }
00063 }
00064 <span class="keywordflow">else</span> {
00065 z = _expression[0];
00066 _piece = piece;
00067 }
00068 <span class="keywordflow">for</span>(size_t pos=0; pos<piece.length(); pos++) {
00069 <span class="keywordflow">if</span>(_piece[pos] == z) {
00070 Splitted.push_back(buffer);
00071 buffer = <span class="stringliteral">""</span>;
00072 }
00073 <span class="keywordflow">else</span> {
00074 buffer += piece[pos];
00075 }
00076 }
00077 <span class="keywordflow">if</span>(buffer != <span class="stringliteral">""</span>) {
00078 Splitted.push_back(buffer);
00079 }
00080 }
00081 <span class="keywordflow">else</span> {
00082 <span class="comment">/* use the regex way */</span>
00083 <span class="keywordflow">if</span>(_expression[0] != <span class="charliteral">'('</span> && _expression[ _expression.length() - 1 ] != <span class="charliteral">')'</span> ) {
00084 <span class="comment">/* oh, oh - the pre-compiled expression does not contain brackets */</span>
00085 pcre_free(p_pcre);
00086 pcre_free(p_pcre_extra);
00087
00088 pcre *_p = NULL;
00089 pcre_extra *_e = NULL;;
00090
00091 p_pcre = _p;
00092 p_pcre_extra = _e;
00093
00094 _expression = <span class="stringliteral">"("</span> + _expression + <span class="stringliteral">")"</span>;
00095 Compile(_flags);
00096 }
00097 <span class="keywordtype">int</span> num_pieces=0, pos=0, piece_end = 0, piece_start = 0;
00098 <span class="keywordflow">for</span>(;;) {
00099 <span class="keywordflow">if</span>(<a class="code" href="classpcrepp_1_1Pcre.html#a8">search</a>(piece, pos) == <span class="keyword">true</span>) {
00100 <span class="keywordflow">if</span>(<a class="code" href="classpcrepp_1_1Pcre.html#a18">matches</a>() > 0) {
00101 piece_end = <a class="code" href="classpcrepp_1_1Pcre.html#a14">get_match_start</a>(0) - 1;
00102 piece_start = pos;
00103 pos = piece_end + 1 + <a class="code" href="classpcrepp_1_1Pcre.html#a16">get_match_length</a>(0);
00104 string junk(piece, piece_start, (piece_end - piece_start)+1);
00105 num_pieces++;
00106 <span class="keywordflow">if</span>( (limit != 0 && num_pieces < limit) || limit == 0) {
00107 <span class="keywordflow">if</span>( (start_offset != 0 && num_pieces >= start_offset) || start_offset == 0) {
00108 <span class="keywordflow">if</span>( (end_offset != 0 && num_pieces <= end_offset) || end_offset == 0) {
00109 <span class="comment">/* we are within the allowed range, so just add the grab */</span>
00110 Splitted.push_back(junk);
00111 }
00112 }
00113 }
00114 }
00115 }
00116 <span class="keywordflow">else</span> {
00117 <span class="comment">/* the rest of the string, there are no more delimiters */</span>
00118 string junk(piece, pos, (piece.length() - pos));
00119 num_pieces++;
00120 <span class="keywordflow">if</span>( (limit != 0 && num_pieces < limit) || limit == 0) {
00121 <span class="keywordflow">if</span>( (start_offset != 0 && num_pieces >= start_offset) || start_offset == 0) {
00122 <span class="keywordflow">if</span>( (end_offset != 0 && num_pieces <= end_offset) || end_offset == 0) {
00123 <span class="comment">/* we are within the allowed range, so just add the grab */</span>
00124 Splitted.push_back(junk);
00125 }
00126 }
00127 }
00128 <span class="keywordflow">break</span>;
00129 }
00130 } <span class="comment">// for()</span>
00131 } <span class="comment">// if(_expression.length()</span>
00132 <span class="keywordflow">return</span> Splitted;
00133 }
00134
<a name="l00135"></a><a class="code" href="classpcrepp_1_1Pcre.html#a19">00135</a> vector<string> Pcre::split(<span class="keyword">const</span> string& piece) {
00136 <span class="keywordflow">return</span> _split(piece, 0, 0, 0);
00137 }
00138
<a name="l00139"></a><a class="code" href="classpcrepp_1_1Pcre.html#a20">00139</a> vector<string> Pcre::split(<span class="keyword">const</span> string& piece, <span class="keywordtype">int</span> limit) {
00140 <span class="keywordflow">return</span> _split(piece, limit, 0, 0);
00141 }
00142
<a name="l00143"></a><a class="code" href="classpcrepp_1_1Pcre.html#a21">00143</a> vector<string> Pcre::split(<span class="keyword">const</span> string& piece, <span class="keywordtype">int</span> limit, <span class="keywordtype">int</span> start_offset) {
00144 <span class="keywordflow">return</span> _split(piece, limit, start_offset, 0);
00145 }
00146
<a name="l00147"></a><a class="code" href="classpcrepp_1_1Pcre.html#a22">00147</a> vector<string> Pcre::split(<span class="keyword">const</span> string& piece, <span class="keywordtype">int</span> limit, <span class="keywordtype">int</span> start_offset, <span class="keywordtype">int</span> end_offset) {
00148 <span class="keywordflow">return</span> _split(piece, limit, start_offset, end_offset);
00149 }
00150
<a name="l00151"></a><a class="code" href="classpcrepp_1_1Pcre.html#a23">00151</a> vector<string> Pcre::split(<span class="keyword">const</span> string& piece, vector<int> positions) {
00152 vector<string> PreSplitted = _split(piece, 0, 0, 0);
00153 vector<string> Splitted;
00154 <span class="keywordflow">for</span>(vector<int>::iterator vecIt=positions.begin(); vecIt != positions.end(); ++vecIt) {
00155 Splitted.push_back(PreSplitted[*vecIt]);
00156 }
00157 <span class="keywordflow">return</span> Splitted;
00158 }
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