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<hr><h1>algo.cpp</h1><a href="algo_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 
00007 <font class="comment">/* Copyright, 2000-2002 Nevrax Ltd.</font>
00008 <font class="comment"> *</font>
00009 <font class="comment"> * This file is part of NEVRAX NEL.</font>
00010 <font class="comment"> * NEVRAX NEL is free software; you can redistribute it and/or modify</font>
00011 <font class="comment"> * it under the terms of the GNU General Public License as published by</font>
00012 <font class="comment"> * the Free Software Foundation; either version 2, or (at your option)</font>
00013 <font class="comment"> * any later version.</font>
00014 <font class="comment"></font>
00015 <font class="comment"> * NEVRAX NEL is distributed in the hope that it will be useful, but</font>
00016 <font class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00017 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font>
00018 <font class="comment"> * General Public License for more details.</font>
00019 <font class="comment"></font>
00020 <font class="comment"> * You should have received a copy of the GNU General Public License</font>
00021 <font class="comment"> * along with NEVRAX NEL; see the file COPYING. If not, write to the</font>
00022 <font class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</font>
00023 <font class="comment"> * MA 02111-1307, USA.</font>
00024 <font class="comment"> */</font>
00025 
00026 <font class="preprocessor">#include "<a class="code" href="stdmisc_8h.html">stdmisc.h</a>"</font>
00027 
00028 <font class="preprocessor">#include "<a class="code" href="algo_8h.html">nel/misc/algo.h</a>"</font>
00029 <font class="preprocessor">#include &lt;string&gt;</font>
00030 
00031 
00032 <font class="keyword">using</font>   <font class="keyword">namespace </font>std;
00033 
00034 
00035 <font class="keyword">namespace </font>NLMISC 
00036 {
00037 
00038 
00039 <font class="comment">// ***************************************************************************</font>
00040 <font class="keywordtype">bool</font>            <a class="code" href="namespaceNLMISC.html#a209">testWildCard</a>(<font class="keyword">const</font> <font class="keywordtype">char</font> *strIn, <font class="keyword">const</font> <font class="keywordtype">char</font> *wildCard)
00041 {
00042         <font class="comment">// run the 2 string in //el</font>
00043         <font class="keywordflow">while</font>(*wildCard!=0 &amp;&amp; *strIn!=0)
00044         {
00045                 <font class="comment">// if same char, continue.</font>
00046                 <font class="keywordflow">if</font>(*wildCard==*strIn)
00047                 {
00048                         wildCard++;
00049                         strIn++;
00050                 }
00051                 <font class="comment">// if wildCard is ?, continue</font>
00052                 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(*wildCard==<font class="charliteral">'?'</font>)
00053                 {
00054                         wildCard++;
00055                         strIn++;
00056                 }
00057                 <font class="comment">// if wildcard is *, recurs check.</font>
00058                 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(*wildCard==<font class="charliteral">'*'</font>)
00059                 {
00060                         wildCard++;
00061                         <font class="comment">// if last *, its OK.</font>
00062                         <font class="keywordflow">if</font>(*wildCard==0)
00063                                 <font class="keywordflow">return</font> <font class="keyword">true</font>;
00064                         <font class="comment">// else must check next strings.</font>
00065                         <font class="keywordflow">else</font>
00066                         {
00067                                 <font class="comment">// build the wilcard token. eg from "*pipo?", take "pipo"</font>
00068                                 string  token;
00069                                 <font class="keywordflow">while</font>(*wildCard!=<font class="charliteral">'*'</font> &amp;&amp; *wildCard!=<font class="charliteral">'?'</font> &amp;&amp; *wildCard!=0)
00070                                 {
00071                                         token+= *wildCard;
00072                                         wildCard++;
00073                                 }
00074                                 <font class="comment">// if token size is empty, error</font>
00075                                 <font class="keywordflow">if</font>(token.empty())
00076                                         <font class="keywordflow">return</font> <font class="keyword">false</font>;
00077 
00078                                 <font class="comment">// in strIn, search all the occurence of token. For each solution, recurs test.</font>
00079                                 string  sCopy= strIn;
00080                                 uint    pos= sCopy.find(token, 0);
00081                                 <font class="keywordflow">while</font>(pos!=string::npos)
00082                                 {
00083                                         <font class="comment">// do a testWildCard test on the remaining string/wildCard</font>
00084                                         <font class="keywordflow">if</font>( <a class="code" href="namespaceNLMISC.html#a209">testWildCard</a>(strIn+pos+token.size(), wildCard) )
00085                                                 <font class="comment">// if succeed, end</font>
00086                                                 <font class="keywordflow">return</font> <font class="keyword">true</font>;
00087                                         <font class="comment">// fails=&gt; test with an other occurence of token in the string.</font>
00088                                         pos= sCopy.find(token, pos+1);
00089                                 }
00090                                 
00091                                 <font class="comment">// if all failed, fail</font>
00092                                 <font class="keywordflow">return</font> <font class="keyword">false</font>;
00093                         }
00094                 }
00095                 <font class="comment">// else fail</font>
00096                 <font class="keywordflow">else</font>
00097                         <font class="keywordflow">return</font> <font class="keyword">false</font>;
00098         }
00099 
00100         <font class="comment">// If quit here because end Of 2 strs, OK.</font>
00101         <font class="keywordflow">if</font>(*wildCard==0 &amp;&amp; *strIn==0)
00102                 <font class="keywordflow">return</font> <font class="keyword">true</font>;
00103         <font class="comment">// if quit here because wildCard=="*" and s="", OK too.</font>
00104         <font class="keywordflow">if</font>(*strIn==0 &amp;&amp; wildCard[0]==<font class="charliteral">'*'</font> &amp;&amp; wildCard[1]==0)
00105                 <font class="keywordflow">return</font> <font class="keyword">true</font>;
00106 
00107         <font class="comment">/*</font>
00108 <font class="comment">                Else false:</font>
00109 <font class="comment">                        It may be wildCard="?aez" and s="" =&gt; error</font>
00110 <font class="comment">                        It may be wildCard="" and s="aer" =&gt; error</font>
00111 <font class="comment">        */</font>
00112         <font class="keywordflow">return</font> <font class="keyword">false</font>;
00113 }
00114 
00115 
00116 <font class="comment">// ***************************************************************************</font>
00117 <font class="keywordtype">void</font>            <a class="code" href="namespaceNLMISC.html#a210">splitString</a>(<font class="keyword">const</font> std::string &amp;str, <font class="keyword">const</font> std::string &amp;separator, std::vector&lt;std::string&gt; &amp;retList)
00118 {
00119         sint    pos=0;
00120         sint    newPos=0;
00121         retList.clear();
00122         <font class="keywordflow">while</font>( (newPos= str.find(separator,pos)) != string::npos)
00123         {
00124                 <font class="comment">// if not empty sub str. (skip repetition of separator )</font>
00125                 <font class="keywordflow">if</font>(newPos-pos&gt;0)
00126                         retList.push_back(str.substr(pos, newPos-pos));
00127                 <font class="comment">// skip token</font>
00128                 pos= newPos+separator.size();
00129         }
00130         <font class="comment">// copy the last substr</font>
00131         <font class="keywordflow">if</font>( pos&lt;(sint)str.size() )
00132                 retList.push_back(str.substr(pos, str.size()-pos));
00133 }
00134 
00135 
00136 } <font class="comment">// NLMISC</font>
</pre></div>

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