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<h1>ConfigFile.cpp</h1><a href="ConfigFile_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// ConfigFile.cpp</span>
<a name="l00002"></a>00002
<a name="l00003"></a>00003 <span class="preprocessor">#include "<a class="code" href="ConfigFile_8h.html">ConfigFile.h</a>"</span>
<a name="l00004"></a>00004
<a name="l00005"></a>00005 <span class="keyword">using</span> std::string;
<a name="l00006"></a>00006
<a name="l00007"></a><a class="code" href="classConfigFile.html#a183e0c2336f40e4cb8382b8f570248ad">00007</a> <a class="code" href="classConfigFile.html#a9ce259defdfaabeedb2455849ca6bd1e">ConfigFile::ConfigFile</a>( <span class="keywordtype">string</span> filename, <span class="keywordtype">bool</span> isList,<span class="keywordtype">string</span> delimiter,
<a name="l00008"></a>00008 <span class="keywordtype">string</span> comment, <span class="keywordtype">string</span> sentry )
<a name="l00009"></a>00009 : myDelimiter(delimiter), myComment(comment), mySentry(sentry),file(filename),listmode(isList)
<a name="l00010"></a>00010 {
<a name="l00011"></a>00011 <span class="comment">// Construct a ConfigFile, getting keys and values from given file</span>
<a name="l00012"></a>00012
<a name="l00013"></a>00013 std::ifstream in( filename.c_str() );
<a name="l00014"></a>00014
<a name="l00015"></a>00015 <span class="keywordflow">if</span>( !in ) <span class="keywordflow">throw</span> <a class="code" href="structConfigFile_1_1file__not__found.html">file_not_found</a>( filename );
<a name="l00016"></a>00016
<a name="l00017"></a>00017 in >> (*this);
<a name="l00018"></a>00018 }
<a name="l00019"></a>00019
<a name="l00020"></a>00020
<a name="l00021"></a><a class="code" href="classConfigFile.html#a9ce259defdfaabeedb2455849ca6bd1e">00021</a> <a class="code" href="classConfigFile.html#a9ce259defdfaabeedb2455849ca6bd1e">ConfigFile::ConfigFile</a>()
<a name="l00022"></a>00022 : myDelimiter( string(1,<span class="stringliteral">'='</span>) ), myComment( string(2,<span class="stringliteral">'#'</span>) ),listmode(false)
<a name="l00023"></a>00023 {
<a name="l00024"></a>00024 <span class="comment">// Construct a ConfigFile without a file; empty</span>
<a name="l00025"></a>00025 }
<a name="l00026"></a>00026
<a name="l00027"></a>00027 <span class="comment">// Construct the ConfigFile from a given file if its present</span>
<a name="l00028"></a><a class="code" href="classConfigFile.html#aae6af4a2757d27461438600dafef3187">00028</a> <span class="keywordtype">void</span> <a class="code" href="classConfigFile.html#aae6af4a2757d27461438600dafef3187">ConfigFile::load</a>(<span class="keywordtype">string</span> filename,<span class="keywordtype">bool</span> isList)
<a name="l00029"></a>00029 {
<a name="l00030"></a>00030 <a class="code" href="classConfigFile.html#aa5cb7de8754cd596b0e7b1d306d143bf">file</a>=filename;
<a name="l00031"></a>00031 <a class="code" href="classConfigFile.html#a0bc00d561b3a014e9b163901ccebde5f">listmode</a>=isList;
<a name="l00032"></a>00032 std::ifstream in( filename.c_str() );
<a name="l00033"></a>00033 <span class="keywordflow">if</span>( in )
<a name="l00034"></a>00034 in>>(*this);
<a name="l00035"></a>00035 in.close();
<a name="l00036"></a>00036 }
<a name="l00037"></a>00037
<a name="l00038"></a>00038 <span class="comment">// Save the ConfigFile into a given file</span>
<a name="l00039"></a><a class="code" href="classConfigFile.html#ab13acdfb1472f6672574a30e7ae1ba2a">00039</a> <span class="keywordtype">void</span> <a class="code" href="classConfigFile.html#ab13acdfb1472f6672574a30e7ae1ba2a">ConfigFile::save</a>()
<a name="l00040"></a>00040 {
<a name="l00041"></a>00041 std::ofstream out( <a class="code" href="classConfigFile.html#aa5cb7de8754cd596b0e7b1d306d143bf">file</a>.c_str() );
<a name="l00042"></a>00042 <span class="keywordflow">if</span>( !out ) <span class="keywordflow">throw</span> <a class="code" href="structConfigFile_1_1file__not__found.html">file_not_found</a>( <a class="code" href="classConfigFile.html#aa5cb7de8754cd596b0e7b1d306d143bf">file</a> );
<a name="l00043"></a>00043 out<<(*this);
<a name="l00044"></a>00044 out.close();
<a name="l00045"></a>00045 }
<a name="l00046"></a>00046
<a name="l00047"></a><a class="code" href="classConfigFile.html#afca295f72101b138ad2702a11c342f37">00047</a> <span class="keywordtype">void</span> <a class="code" href="classConfigFile.html#afca295f72101b138ad2702a11c342f37">ConfigFile::remove</a>( <span class="keyword">const</span> <span class="keywordtype">string</span>& key )
<a name="l00048"></a>00048 {
<a name="l00049"></a>00049 <span class="comment">// Remove key and its value</span>
<a name="l00050"></a>00050 <a class="code" href="classConfigFile.html#a91b9b9e241d42bd3b1bb8b3e6355761f">myContents</a>.erase( <a class="code" href="classConfigFile.html#a91b9b9e241d42bd3b1bb8b3e6355761f">myContents</a>.find( key ) );
<a name="l00051"></a>00051 <span class="keywordflow">return</span>;
<a name="l00052"></a>00052 }
<a name="l00053"></a>00053
<a name="l00054"></a>00054
<a name="l00055"></a><a class="code" href="classConfigFile.html#afd3d1146ae212a7e5802961f5ad3fe91">00055</a> <span class="keywordtype">bool</span> <a class="code" href="classConfigFile.html#afd3d1146ae212a7e5802961f5ad3fe91">ConfigFile::keyExists</a>( <span class="keyword">const</span> <span class="keywordtype">string</span>& key )<span class="keyword"> const</span>
<a name="l00056"></a>00056 <span class="keyword"></span>{
<a name="l00057"></a>00057 <span class="comment">// Indicate whether key is found</span>
<a name="l00058"></a>00058 <a class="code" href="classConfigFile.html#af606aa032e366450b81792da67c984fc">mapci</a> p = <a class="code" href="classConfigFile.html#a91b9b9e241d42bd3b1bb8b3e6355761f">myContents</a>.find( key );
<a name="l00059"></a>00059 <span class="keywordflow">return</span> ( p != <a class="code" href="classConfigFile.html#a91b9b9e241d42bd3b1bb8b3e6355761f">myContents</a>.end() );
<a name="l00060"></a>00060 }
<a name="l00061"></a>00061
<a name="l00062"></a>00062
<a name="l00063"></a>00063 <span class="comment">/* static */</span>
<a name="l00064"></a><a class="code" href="classConfigFile.html#a6b445b393fcf42386a804fc4077fac10">00064</a> <span class="keywordtype">void</span> <a class="code" href="classConfigFile.html#a6b445b393fcf42386a804fc4077fac10">ConfigFile::trim</a>( <span class="keywordtype">string</span>& s )
<a name="l00065"></a>00065 {
<a name="l00066"></a>00066 <span class="comment">// Remove leading and trailing whitespace</span>
<a name="l00067"></a>00067 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> whitespace[] = <span class="stringliteral">" \n\t\v\r\f"</span>;
<a name="l00068"></a>00068 s.erase( 0, s.find_first_not_of(whitespace) );
<a name="l00069"></a>00069 s.erase( s.find_last_not_of(whitespace) + 1U );
<a name="l00070"></a>00070 }
<a name="l00071"></a>00071
<a name="l00072"></a>00072
<a name="l00073"></a><a class="code" href="ConfigFile_8cpp.html#a8ccacbc37db1992a5515e2c72fc83ce6">00073</a> std::ostream& <a class="code" href="namespaceSchema.html#ae2f8459e876b7551739101741a34a5d8">operator<<</a>( std::ostream& os, <span class="keyword">const</span> <a class="code" href="classConfigFile.html">ConfigFile</a>& cf )
<a name="l00074"></a>00074 {
<a name="l00075"></a>00075 <span class="comment">// Save a ConfigFile to os</span>
<a name="l00076"></a>00076 <span class="keywordflow">for</span>( <a class="code" href="classConfigFile.html#af606aa032e366450b81792da67c984fc">ConfigFile::mapci</a> p = cf.<a class="code" href="classConfigFile.html#a91b9b9e241d42bd3b1bb8b3e6355761f">myContents</a>.begin();
<a name="l00077"></a>00077 p != cf.<a class="code" href="classConfigFile.html#a91b9b9e241d42bd3b1bb8b3e6355761f">myContents</a>.end();
<a name="l00078"></a>00078 ++p )
<a name="l00079"></a>00079 {
<a name="l00080"></a>00080 os << p->first << <span class="stringliteral">" "</span> ;
<a name="l00081"></a>00081 <span class="keywordflow">if</span>(!cf.<a class="code" href="classConfigFile.html#a0bc00d561b3a014e9b163901ccebde5f">listmode</a>)
<a name="l00082"></a>00082 {
<a name="l00083"></a>00083 os<<cf.<a class="code" href="classConfigFile.html#ad63f3e259f665192b64fb3e83c701425">myDelimiter</a> << <span class="stringliteral">" "</span>;
<a name="l00084"></a>00084 os << p->second ;
<a name="l00085"></a>00085 }
<a name="l00086"></a>00086 os<<std::endl;
<a name="l00087"></a>00087 }
<a name="l00088"></a>00088 <span class="keywordflow">return</span> os;
<a name="l00089"></a>00089 }
<a name="l00090"></a>00090
<a name="l00091"></a>00091
<a name="l00092"></a><a class="code" href="ConfigFile_8cpp.html#a25042475439039e70f90febe7d0e63ec">00092</a> std::istream& <a class="code" href="ConfigFile_8cpp.html#a25042475439039e70f90febe7d0e63ec">operator>></a>( std::istream& is, <a class="code" href="classConfigFile.html">ConfigFile</a>& cf )
<a name="l00093"></a>00093 {
<a name="l00094"></a>00094 <span class="comment">// Load a ConfigFile from is</span>
<a name="l00095"></a>00095 <span class="comment">// Read in keys and values, keeping internal whitespace</span>
<a name="l00096"></a>00096 <span class="keyword">typedef</span> string::size_type pos;
<a name="l00097"></a>00097 <span class="keyword">const</span> <span class="keywordtype">string</span>& delim = cf.<a class="code" href="classConfigFile.html#ad63f3e259f665192b64fb3e83c701425">myDelimiter</a>; <span class="comment">// separator</span>
<a name="l00098"></a>00098 <span class="keyword">const</span> <span class="keywordtype">string</span>& comm = cf.<a class="code" href="classConfigFile.html#a2c60a141e8ad012b86a0642ec8ec638d">myComment</a>; <span class="comment">// comment</span>
<a name="l00099"></a>00099 <span class="keyword">const</span> <span class="keywordtype">string</span>& sentry = cf.<a class="code" href="classConfigFile.html#af066ec1942c50848a055350029ebbca5">mySentry</a>; <span class="comment">// end of file sentry</span>
<a name="l00100"></a>00100 <span class="keyword">const</span> pos skip = delim.length(); <span class="comment">// length of separator</span>
<a name="l00101"></a>00101
<a name="l00102"></a>00102 <span class="keywordtype">string</span> nextline = <span class="stringliteral">""</span>; <span class="comment">// might need to read ahead to see where value ends</span>
<a name="l00103"></a>00103
<a name="l00104"></a>00104 <span class="keywordflow">while</span>( is || nextline.length() > 0 )
<a name="l00105"></a>00105 {
<a name="l00106"></a>00106 <span class="comment">// Read an entire line at a time</span>
<a name="l00107"></a>00107 <span class="keywordtype">string</span> line;
<a name="l00108"></a>00108 <span class="keywordflow">if</span>( nextline.length() > 0 )
<a name="l00109"></a>00109 {
<a name="l00110"></a>00110 line = nextline; <span class="comment">// we read ahead; use it now</span>
<a name="l00111"></a>00111 nextline = <span class="stringliteral">""</span>;
<a name="l00112"></a>00112 }
<a name="l00113"></a>00113 <span class="keywordflow">else</span>
<a name="l00114"></a>00114 {
<a name="l00115"></a>00115 std::getline( is, line );
<a name="l00116"></a>00116 }
<a name="l00117"></a>00117
<a name="l00118"></a>00118 <span class="comment">// Ignore comments</span>
<a name="l00119"></a>00119 line = line.substr( 0, line.find(comm) );
<a name="l00120"></a>00120
<a name="l00121"></a>00121 <span class="comment">// Check for end of file sentry</span>
<a name="l00122"></a>00122 <span class="keywordflow">if</span>( sentry != <span class="stringliteral">""</span> && line.find(sentry) != string::npos ) <span class="keywordflow">return</span> is;
<a name="l00123"></a>00123
<a name="l00124"></a>00124 <span class="comment">// Parse the line if it contains a delimiter</span>
<a name="l00125"></a>00125 pos delimPos = line.find( delim );
<a name="l00126"></a>00126 <span class="keywordflow">if</span>( delimPos < string::npos )
<a name="l00127"></a>00127 {
<a name="l00128"></a>00128 <span class="comment">// Extract the key</span>
<a name="l00129"></a>00129 <span class="keywordtype">string</span> key = line.substr( 0, delimPos );
<a name="l00130"></a>00130 line.replace( 0, delimPos+skip, <span class="stringliteral">""</span> );
<a name="l00131"></a>00131
<a name="l00132"></a>00132 <span class="comment">// See if value continues on the next line</span>
<a name="l00133"></a>00133 <span class="comment">// Stop at blank line, next line with a key, end of stream,</span>
<a name="l00134"></a>00134 <span class="comment">// or end of file sentry</span>
<a name="l00135"></a>00135 <span class="keywordtype">bool</span> terminate = <span class="keyword">false</span>;
<a name="l00136"></a>00136 <span class="keywordflow">while</span>( !terminate && is )
<a name="l00137"></a>00137 {
<a name="l00138"></a>00138 std::getline( is, nextline );
<a name="l00139"></a>00139 terminate = <span class="keyword">true</span>;
<a name="l00140"></a>00140
<a name="l00141"></a>00141 <span class="keywordtype">string</span> nlcopy = nextline;
<a name="l00142"></a>00142 <a class="code" href="classConfigFile.html#a6b445b393fcf42386a804fc4077fac10">ConfigFile::trim</a>(nlcopy);
<a name="l00143"></a>00143 <span class="keywordflow">if</span>( nlcopy == <span class="stringliteral">""</span> ) <span class="keywordflow">continue</span>;
<a name="l00144"></a>00144
<a name="l00145"></a>00145 nextline = nextline.substr( 0, nextline.find(comm) );
<a name="l00146"></a>00146 <span class="keywordflow">if</span>( nextline.find(delim) != string::npos )
<a name="l00147"></a>00147 <span class="keywordflow">continue</span>;
<a name="l00148"></a>00148 <span class="keywordflow">if</span>( sentry != <span class="stringliteral">""</span> && nextline.find(sentry) != string::npos )
<a name="l00149"></a>00149 <span class="keywordflow">continue</span>;
<a name="l00150"></a>00150
<a name="l00151"></a>00151 nlcopy = nextline;
<a name="l00152"></a>00152 <a class="code" href="classConfigFile.html#a6b445b393fcf42386a804fc4077fac10">ConfigFile::trim</a>(nlcopy);
<a name="l00153"></a>00153 <span class="keywordflow">if</span>( nlcopy != <span class="stringliteral">""</span> ) line += <span class="stringliteral">"\n"</span>;
<a name="l00154"></a>00154 line += nextline;
<a name="l00155"></a>00155 terminate = <span class="keyword">false</span>;
<a name="l00156"></a>00156 }
<a name="l00157"></a>00157
<a name="l00158"></a>00158 <span class="comment">// Store key and value</span>
<a name="l00159"></a>00159 <a class="code" href="classConfigFile.html#a6b445b393fcf42386a804fc4077fac10">ConfigFile::trim</a>(key);
<a name="l00160"></a>00160 <a class="code" href="classConfigFile.html#a6b445b393fcf42386a804fc4077fac10">ConfigFile::trim</a>(line);
<a name="l00161"></a>00161 cf.<a class="code" href="classConfigFile.html#a91b9b9e241d42bd3b1bb8b3e6355761f">myContents</a>[key] = line; <span class="comment">// overwrites if key is repeated</span>
<a name="l00162"></a>00162 }
<a name="l00163"></a>00163 <span class="keywordflow">else</span> <span class="keywordflow">if</span>(cf.<a class="code" href="classConfigFile.html#a0bc00d561b3a014e9b163901ccebde5f">listmode</a>)
<a name="l00164"></a>00164 {
<a name="l00165"></a>00165 <a class="code" href="classConfigFile.html#a6b445b393fcf42386a804fc4077fac10">ConfigFile::trim</a>(line);
<a name="l00166"></a>00166 cf.<a class="code" href="classConfigFile.html#a91b9b9e241d42bd3b1bb8b3e6355761f">myContents</a>[line]=<span class="stringliteral">" "</span>;
<a name="l00167"></a>00167 }
<a name="l00168"></a>00168 }
<a name="l00169"></a>00169
<a name="l00170"></a>00170 <span class="keywordflow">return</span> is;
<a name="l00171"></a>00171 }
</pre></div></div>
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