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<hr><h1>pcre++.cc</h1><a href="pcre++_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"> * CONSTRUCTORS and stuff</span>
00049 <span class="comment"> */</span>
<a name="l00050"></a><a class="code" href="classpcrepp_1_1Pcre.html#a1">00050</a> Pcre::Pcre(<span class="keyword">const</span> string& expression) {
00051 _have_paren = <span class="keyword">false</span>;
00052 _expression = expression;
00053 _flags = 0;
00054 case_t = global_t = <span class="keyword">false</span>;
00055 zero();
00056 Compile(0);
00057 }
00058
<a name="l00059"></a><a class="code" href="classpcrepp_1_1Pcre.html#a2">00059</a> Pcre::Pcre(<span class="keyword">const</span> string& expression, <span class="keyword">const</span> string& flags) {
00060 _have_paren = <span class="keyword">false</span>;
00061 _expression = expression;
00062 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> FLAG = 0;
00063
00064 <span class="keywordflow">for</span>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> flag=0; flag<flags.length(); flag++) {
00065 <span class="keywordflow">switch</span>(flags[flag]) {
00066 <span class="keywordflow">case</span> <span class="charliteral">'i'</span>: FLAG |= PCRE_CASELESS; case_t = <span class="keyword">true</span>; <span class="keywordflow">break</span>;
00067 <span class="keywordflow">case</span> <span class="charliteral">'m'</span>: FLAG |= PCRE_MULTILINE; <span class="keywordflow">break</span>;
00068 <span class="keywordflow">case</span> <span class="charliteral">'s'</span>: FLAG |= PCRE_DOTALL; <span class="keywordflow">break</span>;
00069 <span class="keywordflow">case</span> <span class="charliteral">'x'</span>: FLAG |= PCRE_EXTENDED; <span class="keywordflow">break</span>;
00070 <span class="keywordflow">case</span> <span class="charliteral">'g'</span>: global_t = <span class="keyword">true</span>; <span class="keywordflow">break</span>;
00071 }
00072 }
00073
00074 _flags = FLAG;
00075
00076 zero();
00077 Compile(FLAG);
00078 }
00079
<a name="l00080"></a><a class="code" href="classpcrepp_1_1Pcre.html#a3">00080</a> Pcre::Pcre(<span class="keyword">const</span> string& expression, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> flags) {
00081 _have_paren = <span class="keyword">false</span>;
00082 _expression = expression;
00083 _flags = flags;
00084
00085 <span class="keywordflow">if</span>((_flags & PCRE_CASELESS) != 0)
00086 case_t = <span class="keyword">true</span>;
00087
00088 <span class="keywordflow">if</span>((_flags & <a class="code" href="pcre++_8h.html#a1">PCRE_GLOBAL</a>) != 0) {
00089 global_t = <span class="keyword">true</span>;
00090 _flags = _flags - <a class="code" href="pcre++_8h.html#a1">PCRE_GLOBAL</a>; <span class="comment">/* remove pcre++ flag before feeding _flags to pcre */</span>
00091 }
00092
00093 zero();
00094 Compile(_flags);
00095 }
00096
<a name="l00097"></a><a class="code" href="classpcrepp_1_1Pcre.html#a4">00097</a> Pcre::Pcre(<span class="keyword">const</span> <a class="code" href="classpcrepp_1_1Pcre.html">Pcre</a> &P) {
00098 _have_paren = P.<a class="code" href="classpcrepp_1_1Pcre.html#o11">_have_paren</a>;
00099 _expression = P.<a class="code" href="classpcrepp_1_1Pcre.html#o0">_expression</a>;
00100 _flags = P.<a class="code" href="classpcrepp_1_1Pcre.html#o1">_flags</a>;
00101 case_t = P.<a class="code" href="classpcrepp_1_1Pcre.html#o2">case_t</a>;
00102 global_t = P.<a class="code" href="classpcrepp_1_1Pcre.html#o3">global_t</a>;
00103 zero();
00104 Compile(_flags);
00105 }
00106
<a name="l00107"></a><a class="code" href="classpcrepp_1_1Pcre.html#a0">00107</a> Pcre::Pcre() {
00108 zero();
00109 }
00110
00111
00112
00113
00114
00115
00116
00117 <span class="comment">/*</span>
00118 <span class="comment"> * Destructor</span>
00119 <span class="comment"> */</span>
<a name="l00120"></a><a class="code" href="classpcrepp_1_1Pcre.html#a7">00120</a> Pcre::~Pcre() {
00121 <span class="comment">/* avoid deleting of uninitialized pointers */</span>
00122 <span class="keywordflow">if</span> (p_pcre != NULL) {
00123 pcre_free(p_pcre);
00124 }
00125 <span class="keywordflow">if</span> (p_pcre_extra != NULL) {
00126 pcre_free(p_pcre_extra);
00127 }
00128 <span class="keywordflow">if</span>(sub_vec != NULL) {
00129 <span class="keyword">delete</span>[] sub_vec;
00130 }
00131 <span class="keywordflow">if</span>(resultset != NULL) {
00132 <span class="keyword">delete</span> resultset;
00133 }
00134 }
00135
00136
00137
00138
00139 <span class="comment">/*</span>
00140 <span class="comment"> * operator= definitions</span>
00141 <span class="comment"> */</span>
<a name="l00142"></a><a class="code" href="classpcrepp_1_1Pcre.html#a5">00142</a> <span class="keyword">const</span> <a class="code" href="classpcrepp_1_1Pcre.html">Pcre</a>& Pcre::operator = (<span class="keyword">const</span> string& expression) {
00143 <span class="comment">/* reset the object and re-intialize it */</span>
00144 reset();
00145 _expression = expression;
00146 _flags = 0;
00147 case_t = global_t = <span class="keyword">false</span>;
00148 Compile(0);
00149 <span class="keywordflow">return</span> *<span class="keyword">this</span>;
00150 }
00151
00152
<a name="l00153"></a><a class="code" href="classpcrepp_1_1Pcre.html#a6">00153</a> <span class="keyword">const</span> <a class="code" href="classpcrepp_1_1Pcre.html">Pcre</a>& Pcre::operator = (<span class="keyword">const</span> <a class="code" href="classpcrepp_1_1Pcre.html">Pcre</a> &P) {
00154 reset();
00155 _expression = P.<a class="code" href="classpcrepp_1_1Pcre.html#o0">_expression</a>;
00156 _flags = P.<a class="code" href="classpcrepp_1_1Pcre.html#o1">_flags</a>;
00157 case_t = P.<a class="code" href="classpcrepp_1_1Pcre.html#o2">case_t</a>;
00158 global_t = P.<a class="code" href="classpcrepp_1_1Pcre.html#o3">global_t</a>;
00159 zero();
00160 Compile(_flags);
00161 <span class="keywordflow">return</span> *<span class="keyword">this</span>;
00162 }
00163
00164
00165
00166
00167
00168
00169 <span class="comment">/*</span>
00170 <span class="comment"> * mem resetting methods</span>
00171 <span class="comment"> */</span>
00172 <span class="keywordtype">void</span> Pcre::zero() {
00173 <span class="comment">/* what happens if p_pcre is already allocated? hm ... */</span>
00174 p_pcre_extra = NULL;
00175 p_pcre = NULL;
00176 sub_vec = NULL;
00177 resultset = NULL;
00178 err_str = NULL;
00179 num_matches = -1;
00180 tables = NULL;
00181 }
00182
00183 <span class="keywordtype">void</span> Pcre::reset() {
00184 did_match = <span class="keyword">false</span>;
00185 num_matches = -1;
00186 }
00187
00188
00189
00190
00191
00192 <span class="comment">/*</span>
00193 <span class="comment"> * accessing the underlying implementation</span>
00194 <span class="comment"> */</span>
<a name="l00195"></a><a class="code" href="classpcrepp_1_1Pcre.html#a25">00195</a> pcre* Pcre::get_pcre() {
00196 <span class="keywordflow">return</span> p_pcre;
00197 }
00198
<a name="l00199"></a><a class="code" href="classpcrepp_1_1Pcre.html#a26">00199</a> pcre_extra* Pcre::get_pcre_extra() {
00200 <span class="keywordflow">return</span> p_pcre_extra;
00201 }
00202
00203
00204
00205
00206
00207 <span class="comment">/*</span>
00208 <span class="comment"> * support stuff</span>
00209 <span class="comment"> */</span>
<a name="l00210"></a><a class="code" href="classpcrepp_1_1Pcre.html#a27">00210</a> <span class="keywordtype">void</span> Pcre::study() {
00211 p_pcre_extra = pcre_study(p_pcre, 0, (<span class="keyword">const</span> <span class="keywordtype">char</span> **)(&err_str));
00212 <span class="keywordflow">if</span>(err_str != NULL)
00213 <span class="keywordflow">throw</span> <a class="code" href="classpcrepp_1_1Pcre_1_1exception.html">exception</a>(<span class="stringliteral">"pcre_study(..) failed: "</span> + string(err_str));
00214 }
00215
00216
00217 <span class="comment">/*</span>
00218 <span class="comment"> * setting current locale</span>
00219 <span class="comment"> */</span>
<a name="l00220"></a><a class="code" href="classpcrepp_1_1Pcre.html#a28">00220</a> <span class="keywordtype">bool</span> Pcre::setlocale(<span class="keyword">const</span> <span class="keywordtype">char</span>* locale) {
00221 <span class="keywordflow">if</span> (std::setlocale(LC_CTYPE, locale) == NULL) <span class="keywordflow">return</span> <span class="keyword">false</span>;
00222 tables = pcre_maketables();
00223 <span class="keywordflow">return</span> <span class="keyword">true</span>;
00224 }
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