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<div class="title">ktraderparsetree.cpp</div> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* This file is part of the KDE project</span>
<a name="l00002"></a>00002 <span class="comment"> Copyright (C) 1998, 1999 Torben Weis <weis@kde.org></span>
<a name="l00003"></a>00003 <span class="comment"></span>
<a name="l00004"></a>00004 <span class="comment"> This library is free software; you can redistribute it and/or</span>
<a name="l00005"></a>00005 <span class="comment"> modify it under the terms of the GNU Library General Public</span>
<a name="l00006"></a>00006 <span class="comment"> License as published by the Free Software Foundation; either</span>
<a name="l00007"></a>00007 <span class="comment"> version 2 of the License, or (at your option) any later version.</span>
<a name="l00008"></a>00008 <span class="comment"></span>
<a name="l00009"></a>00009 <span class="comment"> This library is distributed in the hope that it will be useful,</span>
<a name="l00010"></a>00010 <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00011"></a>00011 <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
<a name="l00012"></a>00012 <span class="comment"> Library General Public License for more details.</span>
<a name="l00013"></a>00013 <span class="comment"></span>
<a name="l00014"></a>00014 <span class="comment"> You should have received a copy of the GNU Library General Public License</span>
<a name="l00015"></a>00015 <span class="comment"> along with this library; see the file COPYING.LIB. If not, write to</span>
<a name="l00016"></a>00016 <span class="comment"> the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,</span>
<a name="l00017"></a>00017 <span class="comment"> Boston, MA 02110-1301, USA.</span>
<a name="l00018"></a>00018 <span class="comment">*/</span>
<a name="l00019"></a>00019
<a name="l00020"></a>00020 <span class="preprocessor">#include "ktraderparsetree.h"</span>
<a name="l00021"></a>00021
<a name="l00022"></a>00022 <span class="keyword">namespace </span>KIO {
<a name="l00023"></a>00023
<a name="l00024"></a>00024 <span class="keywordtype">bool</span> ParseTreeOR::eval( ParseContext *_context )<span class="keyword"> const</span>
<a name="l00025"></a>00025 <span class="keyword"></span>{
<a name="l00026"></a>00026 ParseContext c1( _context );
<a name="l00027"></a>00027 ParseContext c2( _context );
<a name="l00028"></a>00028
<a name="l00029"></a>00029 <span class="comment">// don't evaluate both expressions but return immediately</span>
<a name="l00030"></a>00030 <span class="comment">// if the first one of them succeeds. Otherwise queries like</span>
<a name="l00031"></a>00031 <span class="comment">// ((not exist Blah) or (Blah == 'Foo')) do not work, because</span>
<a name="l00032"></a>00032 <span class="comment">// the evaluation of the second term ends up in a fatal error</span>
<a name="l00033"></a>00033 <span class="comment">// (Simon)</span>
<a name="l00034"></a>00034
<a name="l00035"></a>00035 <span class="keywordflow">if</span> ( !m_pLeft->eval( &c1 ) )
<a name="l00036"></a>00036 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00037"></a>00037
<a name="l00038"></a>00038 <span class="keywordflow">if</span> ( c1.type != ParseContext::T_BOOL )
<a name="l00039"></a>00039 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00040"></a>00040
<a name="l00041"></a>00041 _context->b = c1.b;
<a name="l00042"></a>00042 _context->type = ParseContext::T_BOOL;
<a name="l00043"></a>00043 <span class="keywordflow">if</span> ( c1.b )
<a name="l00044"></a>00044 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00045"></a>00045
<a name="l00046"></a>00046 <span class="keywordflow">if</span> ( !m_pRight->eval( &c2 ) )
<a name="l00047"></a>00047 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00048"></a>00048
<a name="l00049"></a>00049 <span class="keywordflow">if</span> ( c2.type != ParseContext::T_BOOL )
<a name="l00050"></a>00050 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00051"></a>00051
<a name="l00052"></a>00052 _context->b = ( c1.b || c2.b );
<a name="l00053"></a>00053 _context->type = ParseContext::T_BOOL;
<a name="l00054"></a>00054
<a name="l00055"></a>00055 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00056"></a>00056 }
<a name="l00057"></a>00057
<a name="l00058"></a>00058 <span class="keywordtype">bool</span> ParseTreeAND::eval( ParseContext *_context )<span class="keyword"> const</span>
<a name="l00059"></a>00059 <span class="keyword"></span>{
<a name="l00060"></a>00060 _context->type = ParseContext::T_BOOL;
<a name="l00061"></a>00061
<a name="l00062"></a>00062 ParseContext c1( _context );
<a name="l00063"></a>00063 ParseContext c2( _context );
<a name="l00064"></a>00064 <span class="keywordflow">if</span> ( !m_pLeft->eval( &c1 ) )
<a name="l00065"></a>00065 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00066"></a>00066 <span class="keywordflow">if</span> ( c1.type != ParseContext::T_BOOL )
<a name="l00067"></a>00067 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00068"></a>00068 <span class="keywordflow">if</span> ( !c1.b )
<a name="l00069"></a>00069 {
<a name="l00070"></a>00070 _context->b = <span class="keyword">false</span>;
<a name="l00071"></a>00071 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00072"></a>00072 }
<a name="l00073"></a>00073
<a name="l00074"></a>00074 <span class="keywordflow">if</span> ( !m_pRight->eval( &c2 ) )
<a name="l00075"></a>00075 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00076"></a>00076 <span class="keywordflow">if</span> ( c2.type != ParseContext::T_BOOL )
<a name="l00077"></a>00077 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00078"></a>00078
<a name="l00079"></a>00079 _context->b = ( c1.b && c2.b );
<a name="l00080"></a>00080
<a name="l00081"></a>00081 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00082"></a>00082 }
<a name="l00083"></a>00083
<a name="l00084"></a>00084 <span class="keywordtype">bool</span> ParseTreeCALC::eval( ParseContext *_context )<span class="keyword"> const</span>
<a name="l00085"></a>00085 <span class="keyword"></span>{
<a name="l00086"></a>00086 ParseContext c1( _context );
<a name="l00087"></a>00087 ParseContext c2( _context );
<a name="l00088"></a>00088 <span class="keywordflow">if</span> ( !m_pLeft->eval( &c1 ) )
<a name="l00089"></a>00089 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00090"></a>00090 <span class="keywordflow">if</span> ( !m_pRight->eval( &c2 ) )
<a name="l00091"></a>00091 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00092"></a>00092
<a name="l00093"></a>00093 <span class="comment">// Bool extension</span>
<a name="l00094"></a>00094 <span class="keywordflow">if</span> ( c1.type != ParseContext::T_NUM && c1.type != ParseContext::T_DOUBLE && c1.type != ParseContext::T_BOOL )
<a name="l00095"></a>00095 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00096"></a>00096 <span class="comment">// Bool extension</span>
<a name="l00097"></a>00097 <span class="keywordflow">if</span> ( c2.type != ParseContext::T_NUM && c2.type != ParseContext::T_DOUBLE && c2.type != ParseContext::T_BOOL )
<a name="l00098"></a>00098 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00099"></a>00099 <span class="comment">// Bool extension</span>
<a name="l00100"></a>00100 <span class="keywordflow">if</span> ( c1.type == ParseContext::T_BOOL && c2.type == ParseContext::T_BOOL )
<a name="l00101"></a>00101 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00102"></a>00102
<a name="l00106"></a>00106 <span class="keywordflow">if</span> ( c1.type == ParseContext::T_NUM && c2.type == ParseContext::T_DOUBLE )
<a name="l00107"></a>00107 {
<a name="l00108"></a>00108 c1.type = ParseContext::T_DOUBLE;
<a name="l00109"></a>00109 c1.f = (double)c1.i;
<a name="l00110"></a>00110 }
<a name="l00111"></a>00111 <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( c1.type == ParseContext::T_DOUBLE && c2.type == ParseContext::T_NUM )
<a name="l00112"></a>00112 {
<a name="l00113"></a>00113 c2.type = ParseContext::T_DOUBLE;
<a name="l00114"></a>00114 c2.f = (double)c2.i;
<a name="l00115"></a>00115 }
<a name="l00116"></a>00116 <span class="comment">// Bool extension</span>
<a name="l00117"></a>00117 <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( c1.type == ParseContext::T_BOOL && c2.type == ParseContext::T_NUM )
<a name="l00118"></a>00118 {
<a name="l00119"></a>00119 c1.type = ParseContext::T_NUM;
<a name="l00120"></a>00120 <span class="keywordflow">if</span> ( c1.b )
<a name="l00121"></a>00121 c1.i = 1;
<a name="l00122"></a>00122 <span class="keywordflow">else</span>
<a name="l00123"></a>00123 c1.i = -1;
<a name="l00124"></a>00124 }
<a name="l00125"></a>00125 <span class="comment">// Bool extension</span>
<a name="l00126"></a>00126 <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( c1.type == ParseContext::T_BOOL && c2.type == ParseContext::T_DOUBLE )
<a name="l00127"></a>00127 {
<a name="l00128"></a>00128 c1.type = ParseContext::T_DOUBLE;
<a name="l00129"></a>00129 <span class="keywordflow">if</span> ( c1.b )
<a name="l00130"></a>00130 c1.f = 1.0;
<a name="l00131"></a>00131 <span class="keywordflow">else</span>
<a name="l00132"></a>00132 c1.f = -1.0;
<a name="l00133"></a>00133 }
<a name="l00134"></a>00134 <span class="comment">// Bool extension</span>
<a name="l00135"></a>00135 <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( c1.type == ParseContext::T_NUM && c2.type == ParseContext::T_BOOL )
<a name="l00136"></a>00136 {
<a name="l00137"></a>00137 c2.type = ParseContext::T_NUM;
<a name="l00138"></a>00138 <span class="keywordflow">if</span> ( c2.b )
<a name="l00139"></a>00139 c2.i = 1;
<a name="l00140"></a>00140 <span class="keywordflow">else</span>
<a name="l00141"></a>00141 c2.i = -1;
<a name="l00142"></a>00142 }
<a name="l00143"></a>00143 <span class="comment">// Bool extension</span>
<a name="l00144"></a>00144 <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( c1.type == ParseContext::T_DOUBLE && c2.type == ParseContext::T_BOOL )
<a name="l00145"></a>00145 {
<a name="l00146"></a>00146 c2.type = ParseContext::T_DOUBLE;
<a name="l00147"></a>00147 <span class="keywordflow">if</span> ( c2.b )
<a name="l00148"></a>00148 c2.f = 1.0;
<a name="l00149"></a>00149 <span class="keywordflow">else</span>
<a name="l00150"></a>00150 c2.f = -1.0;
<a name="l00151"></a>00151 }
<a name="l00152"></a>00152
<a name="l00153"></a>00153 _context->type = c1.type;
<a name="l00154"></a>00154
<a name="l00158"></a>00158 <span class="keywordflow">switch</span>( m_cmd )
<a name="l00159"></a>00159 {
<a name="l00160"></a>00160 <span class="keywordflow">case</span> 1: <span class="comment">/* Add */</span>
<a name="l00161"></a>00161 <span class="keywordflow">if</span> ( c1.type == ParseContext::T_DOUBLE )
<a name="l00162"></a>00162 {
<a name="l00163"></a>00163 _context->f = ( c1.f + c2.f );
<a name="l00164"></a>00164 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00165"></a>00165 }
<a name="l00166"></a>00166 <span class="keywordflow">if</span> ( c1.type == ParseContext::T_NUM )
<a name="l00167"></a>00167 {
<a name="l00168"></a>00168 _context->i = ( c1.i + c2.i );
<a name="l00169"></a>00169 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00170"></a>00170 }
<a name="l00171"></a>00171 <span class="keywordflow">break</span>;
<a name="l00172"></a>00172 <span class="keywordflow">case</span> 2: <span class="comment">/* Sub */</span>
<a name="l00173"></a>00173 <span class="keywordflow">if</span> ( c1.type == ParseContext::T_DOUBLE )
<a name="l00174"></a>00174 {
<a name="l00175"></a>00175 _context->f = ( c1.f - c2.f );
<a name="l00176"></a>00176 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00177"></a>00177 }
<a name="l00178"></a>00178 <span class="keywordflow">if</span> ( c1.type == ParseContext::T_NUM )
<a name="l00179"></a>00179 {
<a name="l00180"></a>00180 _context->i = ( c1.i - c2.i );
<a name="l00181"></a>00181 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00182"></a>00182 }
<a name="l00183"></a>00183 <span class="keywordflow">break</span>;
<a name="l00184"></a>00184 <span class="keywordflow">case</span> 3: <span class="comment">/* Mul */</span>
<a name="l00185"></a>00185 <span class="keywordflow">if</span> ( c1.type == ParseContext::T_DOUBLE )
<a name="l00186"></a>00186 {
<a name="l00187"></a>00187 <span class="comment">//cout << "Double Mult" << endl;</span>
<a name="l00188"></a>00188 _context->f = ( c1.f * c2.f );
<a name="l00189"></a>00189 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00190"></a>00190 }
<a name="l00191"></a>00191 <span class="keywordflow">if</span> ( c1.type == ParseContext::T_NUM )
<a name="l00192"></a>00192 {
<a name="l00193"></a>00193 _context->i = ( c1.i * c2.i );
<a name="l00194"></a>00194 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00195"></a>00195 }
<a name="l00196"></a>00196 <span class="keywordflow">break</span>;
<a name="l00197"></a>00197 <span class="keywordflow">case</span> 4: <span class="comment">/* Div */</span>
<a name="l00198"></a>00198 <span class="keywordflow">if</span> ( c1.type == ParseContext::T_DOUBLE )
<a name="l00199"></a>00199 {
<a name="l00200"></a>00200 _context->f = ( c1.f / c2.f );
<a name="l00201"></a>00201 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00202"></a>00202 }
<a name="l00203"></a>00203 <span class="keywordflow">if</span> ( c1.type == ParseContext::T_NUM )
<a name="l00204"></a>00204 {
<a name="l00205"></a>00205 _context->i = ( c1.i / c2.i );
<a name="l00206"></a>00206 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00207"></a>00207 }
<a name="l00208"></a>00208 <span class="keywordflow">break</span>;
<a name="l00209"></a>00209 }
<a name="l00210"></a>00210
<a name="l00211"></a>00211 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00212"></a>00212 }
<a name="l00213"></a>00213
<a name="l00214"></a>00214 <span class="keywordtype">bool</span> ParseTreeCMP::eval( ParseContext *_context )<span class="keyword"> const</span>
<a name="l00215"></a>00215 <span class="keyword"></span>{
<a name="l00216"></a>00216 <span class="comment">//cout << "CMP 1 cmd=" << m_cmd << endl;</span>
<a name="l00217"></a>00217 ParseContext c1( _context );
<a name="l00218"></a>00218 ParseContext c2( _context );
<a name="l00219"></a>00219 <span class="keywordflow">if</span> ( !m_pLeft->eval( &c1 ) )
<a name="l00220"></a>00220 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00221"></a>00221
<a name="l00222"></a>00222 <span class="keywordflow">if</span> ( !m_pRight->eval( &c2 ) )
<a name="l00223"></a>00223 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00224"></a>00224
<a name="l00228"></a>00228 <span class="keywordflow">if</span> ( c1.type == ParseContext::T_NUM && c2.type == ParseContext::T_DOUBLE )
<a name="l00229"></a>00229 {
<a name="l00230"></a>00230 c1.type = ParseContext::T_DOUBLE;
<a name="l00231"></a>00231 c1.f = (double)c1.i;
<a name="l00232"></a>00232 }
<a name="l00233"></a>00233 <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( c1.type == ParseContext::T_DOUBLE && c2.type == ParseContext::T_NUM )
<a name="l00234"></a>00234 {
<a name="l00235"></a>00235 c2.type = ParseContext::T_DOUBLE;
<a name="l00236"></a>00236 c2.f = (double)c2.i;
<a name="l00237"></a>00237 }
<a name="l00238"></a>00238
<a name="l00242"></a>00242 _context->type = ParseContext::T_BOOL;
<a name="l00243"></a>00243
<a name="l00244"></a>00244 <span class="keywordflow">switch</span>( m_cmd )
<a name="l00245"></a>00245 {
<a name="l00246"></a>00246 <span class="keywordflow">case</span> 1: <span class="comment">/* EQ */</span>
<a name="l00247"></a>00247 <span class="keywordflow">if</span> ( c1.type != c2.type )
<a name="l00248"></a>00248 {
<a name="l00249"></a>00249 _context->b = <span class="keyword">false</span>;
<a name="l00250"></a>00250 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00251"></a>00251 }
<a name="l00252"></a>00252 <span class="keywordflow">if</span> ( c1.type == ParseContext::T_STRING )
<a name="l00253"></a>00253 {
<a name="l00254"></a>00254 _context->b = ( c1.str == c2.str );
<a name="l00255"></a>00255 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00256"></a>00256 }
<a name="l00257"></a>00257 <span class="keywordflow">if</span> ( c1.type == ParseContext::T_BOOL )
<a name="l00258"></a>00258 {
<a name="l00259"></a>00259 _context->b = ( c1.b == c2.b );
<a name="l00260"></a>00260 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00261"></a>00261 }
<a name="l00262"></a>00262 <span class="keywordflow">if</span> ( c1.type == ParseContext::T_DOUBLE )
<a name="l00263"></a>00263 {
<a name="l00264"></a>00264 _context->b = ( c1.f == c2.f );
<a name="l00265"></a>00265 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00266"></a>00266 }
<a name="l00267"></a>00267 <span class="keywordflow">if</span> ( c1.type == ParseContext::T_NUM )
<a name="l00268"></a>00268 {
<a name="l00269"></a>00269 _context->b = ( c1.i == c2.i );
<a name="l00270"></a>00270 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00271"></a>00271 }
<a name="l00272"></a>00272 <span class="keywordflow">break</span>;
<a name="l00273"></a>00273 <span class="keywordflow">case</span> 2: <span class="comment">/* NEQ */</span>
<a name="l00274"></a>00274 <span class="keywordflow">if</span> ( c1.type != c2.type )
<a name="l00275"></a>00275 {
<a name="l00276"></a>00276 _context->b = <span class="keyword">true</span>;
<a name="l00277"></a>00277 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00278"></a>00278 }
<a name="l00279"></a>00279 <span class="keywordflow">if</span> ( c1.type == ParseContext::T_STRING )
<a name="l00280"></a>00280 {
<a name="l00281"></a>00281 _context->b = ( c1.str != c2.str );
<a name="l00282"></a>00282 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00283"></a>00283 }
<a name="l00284"></a>00284 <span class="keywordflow">if</span> ( c1.type == ParseContext::T_BOOL )
<a name="l00285"></a>00285 {
<a name="l00286"></a>00286 _context->b = ( c1.b != c2.b );
<a name="l00287"></a>00287 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00288"></a>00288 }
<a name="l00289"></a>00289 <span class="keywordflow">if</span> ( c1.type == ParseContext::T_DOUBLE )
<a name="l00290"></a>00290 {
<a name="l00291"></a>00291 _context->b = ( c1.f != c2.f );
<a name="l00292"></a>00292 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00293"></a>00293 }
<a name="l00294"></a>00294 <span class="keywordflow">if</span> ( c1.type == ParseContext::T_NUM )
<a name="l00295"></a>00295 {
<a name="l00296"></a>00296 _context->b = ( c1.i != c2.i );
<a name="l00297"></a>00297 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00298"></a>00298 }
<a name="l00299"></a>00299 <span class="keywordflow">break</span>;
<a name="l00300"></a>00300 <span class="keywordflow">case</span> 3: <span class="comment">/* GEQ */</span>
<a name="l00301"></a>00301 <span class="keywordflow">if</span> ( c1.type != c2.type )
<a name="l00302"></a>00302 {
<a name="l00303"></a>00303 _context->b = <span class="keyword">false</span>;
<a name="l00304"></a>00304 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00305"></a>00305 }
<a name="l00306"></a>00306 <span class="keywordflow">if</span> ( c1.type == ParseContext::T_DOUBLE )
<a name="l00307"></a>00307 {
<a name="l00308"></a>00308 _context->b = ( c1.f >= c2.f );
<a name="l00309"></a>00309 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00310"></a>00310 }
<a name="l00311"></a>00311 <span class="keywordflow">if</span> ( c1.type == ParseContext::T_NUM )
<a name="l00312"></a>00312 {
<a name="l00313"></a>00313 _context->b = ( c1.i >= c2.i );
<a name="l00314"></a>00314 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00315"></a>00315 }
<a name="l00316"></a>00316 _context->b = <span class="keyword">false</span>;
<a name="l00317"></a>00317 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00318"></a>00318
<a name="l00319"></a>00319 <span class="keywordflow">case</span> 4: <span class="comment">/* LEQ */</span>
<a name="l00320"></a>00320 <span class="keywordflow">if</span> ( c1.type != c2.type )
<a name="l00321"></a>00321 {
<a name="l00322"></a>00322 _context->b = <span class="keyword">false</span>;
<a name="l00323"></a>00323 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00324"></a>00324 }
<a name="l00325"></a>00325 <span class="keywordflow">if</span> ( c1.type == ParseContext::T_DOUBLE )
<a name="l00326"></a>00326 {
<a name="l00327"></a>00327 _context->b = ( c1.f <= c2.f );
<a name="l00328"></a>00328 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00329"></a>00329 }
<a name="l00330"></a>00330 <span class="keywordflow">if</span> ( c1.type == ParseContext::T_NUM )
<a name="l00331"></a>00331 {
<a name="l00332"></a>00332 _context->b = ( c1.i <= c2.i );
<a name="l00333"></a>00333 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00334"></a>00334 }
<a name="l00335"></a>00335 _context->b = <span class="keyword">false</span>;
<a name="l00336"></a>00336 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00337"></a>00337
<a name="l00338"></a>00338 <span class="keywordflow">case</span> 5: <span class="comment">/* < */</span>
<a name="l00339"></a>00339 <span class="keywordflow">if</span> ( c1.type != c2.type )
<a name="l00340"></a>00340 {
<a name="l00341"></a>00341 _context->b = <span class="keyword">false</span>;
<a name="l00342"></a>00342 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00343"></a>00343 }
<a name="l00344"></a>00344 <span class="keywordflow">if</span> ( c1.type == ParseContext::T_DOUBLE )
<a name="l00345"></a>00345 {
<a name="l00346"></a>00346 _context->b = ( c1.f < c2.f );
<a name="l00347"></a>00347 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00348"></a>00348 }
<a name="l00349"></a>00349 <span class="keywordflow">if</span> ( c1.type == ParseContext::T_NUM )
<a name="l00350"></a>00350 {
<a name="l00351"></a>00351 _context->b = ( c1.i < c2.i );
<a name="l00352"></a>00352 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00353"></a>00353 }
<a name="l00354"></a>00354 _context->b = <span class="keyword">false</span>;
<a name="l00355"></a>00355 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00356"></a>00356
<a name="l00357"></a>00357 <span class="keywordflow">case</span> 6: <span class="comment">/* > */</span>
<a name="l00358"></a>00358 <span class="keywordflow">if</span> ( c1.type != c2.type )
<a name="l00359"></a>00359 {
<a name="l00360"></a>00360 _context->b = <span class="keyword">false</span>;
<a name="l00361"></a>00361 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00362"></a>00362 }
<a name="l00363"></a>00363 <span class="keywordflow">if</span> ( c1.type == ParseContext::T_DOUBLE )
<a name="l00364"></a>00364 {
<a name="l00365"></a>00365 _context->b = ( c1.f > c2.f );
<a name="l00366"></a>00366 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00367"></a>00367 }
<a name="l00368"></a>00368 <span class="keywordflow">if</span> ( c1.type == ParseContext::T_NUM )
<a name="l00369"></a>00369 {
<a name="l00370"></a>00370 _context->b = ( c1.i > c2.i );
<a name="l00371"></a>00371 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00372"></a>00372 }
<a name="l00373"></a>00373 _context->b = <span class="keyword">false</span>;
<a name="l00374"></a>00374 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00375"></a>00375
<a name="l00376"></a>00376 }
<a name="l00377"></a>00377
<a name="l00378"></a>00378 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00379"></a>00379 }
<a name="l00380"></a>00380
<a name="l00381"></a>00381 <span class="keywordtype">bool</span> ParseTreeNOT::eval( ParseContext *_context )<span class="keyword"> const</span>
<a name="l00382"></a>00382 <span class="keyword"></span>{
<a name="l00383"></a>00383 ParseContext c1( _context );
<a name="l00384"></a>00384 <span class="keywordflow">if</span> ( !m_pLeft->eval( &c1 ) )
<a name="l00385"></a>00385 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00386"></a>00386 <span class="keywordflow">if</span> ( c1.type != ParseContext::T_BOOL )
<a name="l00387"></a>00387 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00388"></a>00388
<a name="l00389"></a>00389 _context->b = !c1.b;
<a name="l00390"></a>00390 _context->type = ParseContext::T_BOOL;
<a name="l00391"></a>00391
<a name="l00392"></a>00392 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00393"></a>00393 }
<a name="l00394"></a>00394
<a name="l00395"></a>00395 <span class="keywordtype">bool</span> ParseTreeEXIST::eval( ParseContext *_context )<span class="keyword"> const</span>
<a name="l00396"></a>00396 <span class="keyword"></span>{
<a name="l00397"></a>00397 _context->type = ParseContext::T_BOOL;
<a name="l00398"></a>00398
<a name="l00399"></a>00399 <a class="codeRef" href="qvariant.html">QVariant</a> prop = _context->service->property( m_id );
<a name="l00400"></a>00400 _context->b = prop.<a class="codeRef" href="qvariant.html#isValid">isValid</a>();
<a name="l00401"></a>00401
<a name="l00402"></a>00402 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00403"></a>00403 }
<a name="l00404"></a>00404
<a name="l00405"></a>00405 <span class="keywordtype">bool</span> ParseTreeMATCH::eval( ParseContext *_context )<span class="keyword"> const</span>
<a name="l00406"></a>00406 <span class="keyword"></span>{
<a name="l00407"></a>00407 _context->type = ParseContext::T_BOOL;
<a name="l00408"></a>00408
<a name="l00409"></a>00409 ParseContext c1( _context );
<a name="l00410"></a>00410 ParseContext c2( _context );
<a name="l00411"></a>00411 <span class="keywordflow">if</span> ( !m_pLeft->eval( &c1 ) )
<a name="l00412"></a>00412 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00413"></a>00413 <span class="keywordflow">if</span> ( !m_pRight->eval( &c2 ) )
<a name="l00414"></a>00414 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00415"></a>00415 <span class="keywordflow">if</span> ( c1.type != ParseContext::T_STRING || c2.type != ParseContext::T_STRING )
<a name="l00416"></a>00416 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00417"></a>00417
<a name="l00418"></a>00418 _context->b = ( c2.str.find( c1.str ) != -1 );
<a name="l00419"></a>00419
<a name="l00420"></a>00420 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00421"></a>00421 }
<a name="l00422"></a>00422
<a name="l00423"></a>00423 <span class="keywordtype">bool</span> ParseTreeIN::eval( ParseContext *_context )<span class="keyword"> const</span>
<a name="l00424"></a>00424 <span class="keyword"></span>{
<a name="l00425"></a>00425 _context->type = ParseContext::T_BOOL;
<a name="l00426"></a>00426
<a name="l00427"></a>00427 ParseContext c1( _context );
<a name="l00428"></a>00428 ParseContext c2( _context );
<a name="l00429"></a>00429 <span class="keywordflow">if</span> ( !m_pLeft->eval( &c1 ) )
<a name="l00430"></a>00430 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00431"></a>00431 <span class="keywordflow">if</span> ( !m_pRight->eval( &c2 ) )
<a name="l00432"></a>00432 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00433"></a>00433
<a name="l00434"></a>00434 <span class="keywordflow">if</span> ( (c1.type == ParseContext::T_NUM) &&
<a name="l00435"></a>00435 (c2.type == ParseContext::T_SEQ) &&
<a name="l00436"></a>00436 ((*(c2.seq.begin())).type() == QVariant::Int)) {
<a name="l00437"></a>00437
<a name="l00438"></a>00438 <a class="codeRef" href="qvaluelist.html">QValueList<QVariant>::ConstIterator</a> it = c2.seq.<a class="codeRef" href="qvaluelist.html#begin">begin</a>();
<a name="l00439"></a>00439 <a class="codeRef" href="qvaluelist.html">QValueList<QVariant>::ConstIterator</a> end = c2.seq.<a class="codeRef" href="qvaluelist.html#end">end</a>();
<a name="l00440"></a>00440 _context->b = <span class="keyword">false</span>;
<a name="l00441"></a>00441 <span class="keywordflow">for</span> (; it != end; it++)
<a name="l00442"></a>00442 <span class="keywordflow">if</span> ((*it).type() == QVariant::Int &&
<a name="l00443"></a>00443 (*it).toInt() == c1.i) {
<a name="l00444"></a>00444 _context->b = <span class="keyword">true</span>;
<a name="l00445"></a>00445 <span class="keywordflow">break</span>;
<a name="l00446"></a>00446 }
<a name="l00447"></a>00447 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00448"></a>00448 }
<a name="l00449"></a>00449
<a name="l00450"></a>00450 <span class="keywordflow">if</span> ( c1.type == ParseContext::T_DOUBLE &&
<a name="l00451"></a>00451 c2.type == ParseContext::T_SEQ &&
<a name="l00452"></a>00452 (*(c2.seq.begin())).type() == QVariant::Double) {
<a name="l00453"></a>00453
<a name="l00454"></a>00454 <a class="codeRef" href="qvaluelist.html">QValueList<QVariant>::ConstIterator</a> it = c2.seq.<a class="codeRef" href="qvaluelist.html#begin">begin</a>();
<a name="l00455"></a>00455 <a class="codeRef" href="qvaluelist.html">QValueList<QVariant>::ConstIterator</a> end = c2.seq.<a class="codeRef" href="qvaluelist.html#end">end</a>();
<a name="l00456"></a>00456 _context->b = <span class="keyword">false</span>;
<a name="l00457"></a>00457 <span class="keywordflow">for</span> (; it != end; it++)
<a name="l00458"></a>00458 <span class="keywordflow">if</span> ((*it).type() == QVariant::Double &&
<a name="l00459"></a>00459 (*it).toDouble() == c1.i) {
<a name="l00460"></a>00460 _context->b = <span class="keyword">true</span>;
<a name="l00461"></a>00461 <span class="keywordflow">break</span>;
<a name="l00462"></a>00462 }
<a name="l00463"></a>00463 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00464"></a>00464 }
<a name="l00465"></a>00465
<a name="l00466"></a>00466 <span class="keywordflow">if</span> ( c1.type == ParseContext::T_STRING && c2.type == ParseContext::T_STR_SEQ )
<a name="l00467"></a>00467 {
<a name="l00468"></a>00468 _context->b = ( c2.strSeq.find( c1.str ) != c2.strSeq.end() );
<a name="l00469"></a>00469 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00470"></a>00470 }
<a name="l00471"></a>00471
<a name="l00472"></a>00472 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00473"></a>00473 }
<a name="l00474"></a>00474
<a name="l00475"></a>00475 <span class="keywordtype">bool</span> ParseTreeID::eval( ParseContext *_context )<span class="keyword"> const</span>
<a name="l00476"></a>00476 <span class="keyword"></span>{
<a name="l00477"></a>00477 <a class="codeRef" href="qvariant.html">QVariant</a> prop = _context->service->property( m_str );
<a name="l00478"></a>00478 <span class="keywordflow">if</span> ( !prop.<a class="codeRef" href="qvariant.html#isValid">isValid</a>() )
<a name="l00479"></a>00479 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00480"></a>00480
<a name="l00481"></a>00481 <span class="keywordflow">if</span> ( prop.<a class="codeRef" href="qvariant.html#type">type</a>() == QVariant::String )
<a name="l00482"></a>00482 {
<a name="l00483"></a>00483 _context->str = prop.<a class="codeRef" href="qvariant.html#toString">toString</a>();
<a name="l00484"></a>00484 _context->type = ParseContext::T_STRING;
<a name="l00485"></a>00485 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00486"></a>00486 }
<a name="l00487"></a>00487
<a name="l00488"></a>00488 <span class="keywordflow">if</span> ( prop.<a class="codeRef" href="qvariant.html#type">type</a>() == QVariant::Int )
<a name="l00489"></a>00489 {
<a name="l00490"></a>00490 _context->i = prop.<a class="codeRef" href="qvariant.html#toInt">toInt</a>();
<a name="l00491"></a>00491 _context->type = ParseContext::T_NUM;
<a name="l00492"></a>00492 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00493"></a>00493 }
<a name="l00494"></a>00494
<a name="l00495"></a>00495 <span class="keywordflow">if</span> ( prop.<a class="codeRef" href="qvariant.html#type">type</a>() == QVariant::Bool )
<a name="l00496"></a>00496 {
<a name="l00497"></a>00497 _context->b = prop.<a class="codeRef" href="qvariant.html#toBool">toBool</a>();
<a name="l00498"></a>00498 _context->type = ParseContext::T_BOOL;
<a name="l00499"></a>00499 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00500"></a>00500 }
<a name="l00501"></a>00501
<a name="l00502"></a>00502 <span class="keywordflow">if</span> ( prop.<a class="codeRef" href="qvariant.html#type">type</a>() == QVariant::Double )
<a name="l00503"></a>00503 {
<a name="l00504"></a>00504 _context->f = prop.<a class="codeRef" href="qvariant.html#toDouble">toDouble</a>();
<a name="l00505"></a>00505 _context->type = ParseContext::T_DOUBLE;
<a name="l00506"></a>00506 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00507"></a>00507 }
<a name="l00508"></a>00508
<a name="l00509"></a>00509 <span class="keywordflow">if</span> ( prop.<a class="codeRef" href="qvariant.html#type">type</a>() == QVariant::List )
<a name="l00510"></a>00510 {
<a name="l00511"></a>00511 _context->seq = prop.<a class="codeRef" href="qvariant.html#toList">toList</a>();
<a name="l00512"></a>00512 _context->type = ParseContext::T_SEQ;
<a name="l00513"></a>00513 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00514"></a>00514 }
<a name="l00515"></a>00515
<a name="l00516"></a>00516 <span class="keywordflow">if</span> ( prop.<a class="codeRef" href="qvariant.html#type">type</a>() == QVariant::StringList )
<a name="l00517"></a>00517 {
<a name="l00518"></a>00518 _context->strSeq = prop.<a class="codeRef" href="qvariant.html#toStringList">toStringList</a>();
<a name="l00519"></a>00519 _context->type = ParseContext::T_STR_SEQ;
<a name="l00520"></a>00520 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00521"></a>00521 }
<a name="l00522"></a>00522
<a name="l00523"></a>00523 <span class="comment">// Value has unknown type</span>
<a name="l00524"></a>00524 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00525"></a>00525 }
<a name="l00526"></a>00526
<a name="l00527"></a>00527 <span class="keywordtype">bool</span> ParseTreeMIN2::eval( ParseContext *_context )<span class="keyword"> const</span>
<a name="l00528"></a>00528 <span class="keyword"></span>{
<a name="l00529"></a>00529 _context->type = ParseContext::T_DOUBLE;
<a name="l00530"></a>00530
<a name="l00531"></a>00531 <a class="codeRef" href="qvariant.html">QVariant</a> prop = _context->service->property( m_strId );
<a name="l00532"></a>00532 <span class="keywordflow">if</span> ( !prop.<a class="codeRef" href="qvariant.html#isValid">isValid</a>() )
<a name="l00533"></a>00533 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00534"></a>00534
<a name="l00535"></a>00535 <span class="keywordflow">if</span> ( !_context->initMaxima( m_strId ) )
<a name="l00536"></a>00536 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00537"></a>00537
<a name="l00538"></a>00538 <a class="codeRef" href="qmap.html">QMap<QString,PreferencesMaxima>::Iterator</a> it = _context->maxima.<a class="codeRef" href="qvaluelist.html#find">find</a>( m_strId );
<a name="l00539"></a>00539 <span class="keywordflow">if</span> ( it == _context->maxima.<a class="codeRef" href="qmap.html#end">end</a>() )
<a name="l00540"></a>00540 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00541"></a>00541
<a name="l00542"></a>00542 <span class="keywordflow">if</span> ( prop.<a class="codeRef" href="qvariant.html#type">type</a>() == QVariant::Int && it.data().type == PreferencesMaxima::PM_INT )
<a name="l00543"></a>00543 {
<a name="l00544"></a>00544 _context->f = (double)( prop.<a class="codeRef" href="qvariant.html#toInt">toInt</a>() - it.data().iMin ) /
<a name="l00545"></a>00545 (<span class="keywordtype">double</span>)(it.data().iMax - it.data().iMin ) * (-2.0) + 1.0;
<a name="l00546"></a>00546 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00547"></a>00547 }
<a name="l00548"></a>00548 <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( prop.<a class="codeRef" href="qvariant.html#type">type</a>() == QVariant::Double && it.data().type == PreferencesMaxima::PM_DOUBLE )
<a name="l00549"></a>00549 {
<a name="l00550"></a>00550 _context->f = ( prop.<a class="codeRef" href="qvariant.html#toDouble">toDouble</a>() - it.data().fMin ) / (it.data().fMax - it.data().fMin )
<a name="l00551"></a>00551 * (-2.0) + 1.0;
<a name="l00552"></a>00552 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00553"></a>00553 }
<a name="l00554"></a>00554
<a name="l00555"></a>00555 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00556"></a>00556 }
<a name="l00557"></a>00557
<a name="l00558"></a>00558 <span class="keywordtype">bool</span> ParseTreeMAX2::eval( ParseContext *_context )<span class="keyword"> const</span>
<a name="l00559"></a>00559 <span class="keyword"></span>{
<a name="l00560"></a>00560 _context->type = ParseContext::T_DOUBLE;
<a name="l00561"></a>00561
<a name="l00562"></a>00562 <a class="codeRef" href="qvariant.html">QVariant</a> prop = _context->service->property( m_strId );
<a name="l00563"></a>00563 <span class="keywordflow">if</span> ( !prop.<a class="codeRef" href="qvariant.html#isValid">isValid</a>() )
<a name="l00564"></a>00564 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00565"></a>00565
<a name="l00566"></a>00566 <span class="comment">// Create extrema</span>
<a name="l00567"></a>00567 <span class="keywordflow">if</span> ( !_context->initMaxima( m_strId ) )
<a name="l00568"></a>00568 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00569"></a>00569
<a name="l00570"></a>00570 <span class="comment">// Find extrema</span>
<a name="l00571"></a>00571 <a class="codeRef" href="qmap.html">QMap<QString,PreferencesMaxima>::Iterator</a> it = _context->maxima.<a class="codeRef" href="qmap.html#find">find</a>( m_strId );
<a name="l00572"></a>00572 <span class="keywordflow">if</span> ( it == _context->maxima.<a class="codeRef" href="qmap.html#end">end</a>() )
<a name="l00573"></a>00573 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00574"></a>00574
<a name="l00575"></a>00575 <span class="keywordflow">if</span> ( prop.<a class="codeRef" href="qvariant.html#type">type</a>() == QVariant::Int && it.data().type == PreferencesMaxima::PM_INT )
<a name="l00576"></a>00576 {
<a name="l00577"></a>00577 _context->f = (double)( prop.<a class="codeRef" href="qvariant.html#toInt">toInt</a>() - it.data().iMin ) /
<a name="l00578"></a>00578 (<span class="keywordtype">double</span>)(it.data().iMax - it.data().iMin ) * 2.0 - 1.0;
<a name="l00579"></a>00579 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00580"></a>00580 }
<a name="l00581"></a>00581 <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( prop.<a class="codeRef" href="qvariant.html#type">type</a>() == QVariant::Double && it.data().type == PreferencesMaxima::PM_DOUBLE )
<a name="l00582"></a>00582 {
<a name="l00583"></a>00583 _context->f = ( prop.<a class="codeRef" href="qvariant.html#toDouble">toDouble</a>() - it.data().fMin ) /
<a name="l00584"></a>00584 (it.data().fMax - it.data().fMin ) * 2.0 - 1.0;
<a name="l00585"></a>00585 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00586"></a>00586 }
<a name="l00587"></a>00587
<a name="l00588"></a>00588 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00589"></a>00589 }
<a name="l00590"></a>00590
<a name="l00591"></a>00591 <span class="keywordtype">int</span> matchConstraint( <span class="keyword">const</span> ParseTreeBase *_tree, <span class="keyword">const</span> KService::Ptr &_service,
<a name="l00592"></a>00592 <span class="keyword">const</span> <a class="codeRef" href="qvaluelist.html">KServiceTypeProfile::OfferList</a>& _list )
<a name="l00593"></a>00593 {
<a name="l00594"></a>00594 <span class="comment">// Empty tree matches always</span>
<a name="l00595"></a>00595 <span class="keywordflow">if</span> ( !_tree )
<a name="l00596"></a>00596 <span class="keywordflow">return</span> 1;
<a name="l00597"></a>00597
<a name="l00598"></a>00598 <a class="codeRef" href="qmap.html">QMap<QString,PreferencesMaxima></a> maxima;
<a name="l00599"></a>00599 ParseContext c( _service, _list, maxima );
<a name="l00600"></a>00600
<a name="l00601"></a>00601 <span class="comment">// Error during evaluation ?</span>
<a name="l00602"></a>00602 <span class="keywordflow">if</span> ( !_tree->eval( &c ) )
<a name="l00603"></a>00603 <span class="keywordflow">return</span> -1;
<a name="l00604"></a>00604
<a name="l00605"></a>00605 <span class="comment">// Did we get a bool ?</span>
<a name="l00606"></a>00606 <span class="keywordflow">if</span> ( c.type != ParseContext::T_BOOL )
<a name="l00607"></a>00607 <span class="keywordflow">return</span> -1;
<a name="l00608"></a>00608
<a name="l00609"></a>00609 <span class="keywordflow">return</span> ( c.b ? 1 : 0 );
<a name="l00610"></a>00610 }
<a name="l00611"></a>00611
<a name="l00612"></a>00612 PreferencesReturn matchPreferences( <span class="keyword">const</span> ParseTreeBase *_tree, <span class="keyword">const</span> KService::Ptr &_service,
<a name="l00613"></a>00613 <span class="keyword">const</span> <a class="codeRef" href="qvaluelist.html">KServiceTypeProfile::OfferList</a>& _list )
<a name="l00614"></a>00614 {
<a name="l00615"></a>00615 <span class="comment">// By default: error</span>
<a name="l00616"></a>00616 PreferencesReturn ret;
<a name="l00617"></a>00617
<a name="l00618"></a>00618 <span class="keywordflow">if</span> ( !_tree )
<a name="l00619"></a>00619 <span class="keywordflow">return</span> ret;
<a name="l00620"></a>00620
<a name="l00621"></a>00621 <a class="codeRef" href="qmap.html">QMap<QString,PreferencesMaxima></a> maxima;
<a name="l00622"></a>00622 ParseContext c( _service, _list, maxima );
<a name="l00623"></a>00623
<a name="l00624"></a>00624 <span class="keywordflow">if</span> ( !_tree->eval( &c ) )
<a name="l00625"></a>00625 <span class="keywordflow">return</span> ret;
<a name="l00626"></a>00626
<a name="l00627"></a>00627 <span class="comment">// Did we get a numeric return value ?</span>
<a name="l00628"></a>00628 <span class="keywordflow">if</span> ( c.type == ParseContext::T_NUM )
<a name="l00629"></a>00629 {
<a name="l00630"></a>00630 ret.type = PreferencesReturn::PRT_DOUBLE;
<a name="l00631"></a>00631 ret.f = (double)c.i;
<a name="l00632"></a>00632 }
<a name="l00633"></a>00633 <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( c.type == ParseContext::T_DOUBLE )
<a name="l00634"></a>00634 {
<a name="l00635"></a>00635 ret.type = PreferencesReturn::PRT_DOUBLE;
<a name="l00636"></a>00636 ret.f = c.f;
<a name="l00637"></a>00637 }
<a name="l00638"></a>00638
<a name="l00639"></a>00639 <span class="keywordflow">return</span> ret;
<a name="l00640"></a>00640 }
<a name="l00641"></a>00641
<a name="l00642"></a>00642 <span class="keywordtype">bool</span> ParseContext::initMaxima( <span class="keyword">const</span> <a class="codeRef" href="qstring.html">QString</a>& _prop )
<a name="l00643"></a>00643 {
<a name="l00644"></a>00644 <span class="comment">// Is the property known ?</span>
<a name="l00645"></a>00645 <a class="codeRef" href="qvariant.html">QVariant</a> prop = service->property( _prop );
<a name="l00646"></a>00646 <span class="keywordflow">if</span> ( !prop.<a class="codeRef" href="qvariant.html#isValid">isValid</a>() )
<a name="l00647"></a>00647 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00648"></a>00648
<a name="l00649"></a>00649 <span class="comment">// Numeric ?</span>
<a name="l00650"></a>00650 <span class="keywordflow">if</span> ( prop.<a class="codeRef" href="qvariant.html#type">type</a>() != QVariant::Int && prop.<a class="codeRef" href="qvariant.html#type">type</a>() != QVariant::Double )
<a name="l00651"></a>00651 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00652"></a>00652
<a name="l00653"></a>00653 <span class="comment">// Did we cache the result ?</span>
<a name="l00654"></a>00654 <a class="codeRef" href="qmap.html">QMap<QString,PreferencesMaxima>::Iterator</a> it = maxima.<a class="codeRef" href="qmap.html#find">find</a>( _prop );
<a name="l00655"></a>00655 <span class="keywordflow">if</span> ( it != maxima.<a class="codeRef" href="qmap.html#end">end</a>() )
<a name="l00656"></a>00656 <span class="keywordflow">return</span> ( it.data().type == PreferencesMaxima::PM_DOUBLE ||
<a name="l00657"></a>00657 it.data().type == PreferencesMaxima::PM_INT );
<a name="l00658"></a>00658
<a name="l00659"></a>00659 <span class="comment">// Double or Int ?</span>
<a name="l00660"></a>00660 PreferencesMaxima extrema;
<a name="l00661"></a>00661 <span class="keywordflow">if</span> ( prop.<a class="codeRef" href="qvariant.html#type">type</a>() == QVariant::Int )
<a name="l00662"></a>00662 extrema.type = PreferencesMaxima::PM_INVALID_INT;
<a name="l00663"></a>00663 <span class="keywordflow">else</span>
<a name="l00664"></a>00664 extrema.type = PreferencesMaxima::PM_INVALID_DOUBLE;
<a name="l00665"></a>00665
<a name="l00666"></a>00666 <span class="comment">// Iterate over all offers</span>
<a name="l00667"></a>00667 <a class="codeRef" href="qvaluelist.html#ConstIterator">KServiceTypeProfile::OfferList::ConstIterator</a> oit = offers.begin();
<a name="l00668"></a>00668 <span class="keywordflow">for</span>( ; oit != offers.end(); ++oit )
<a name="l00669"></a>00669 {
<a name="l00670"></a>00670 <a class="codeRef" href="qvariant.html">QVariant</a> p = (*oit).service()->property( _prop );
<a name="l00671"></a>00671 <span class="keywordflow">if</span> ( p.<a class="codeRef" href="qvariant.html#isValid">isValid</a>() )
<a name="l00672"></a>00672 {
<a name="l00673"></a>00673 <span class="comment">// Determine new maximum/minimum</span>
<a name="l00674"></a>00674 <span class="keywordflow">if</span> ( extrema.type == PreferencesMaxima::PM_INVALID_INT )
<a name="l00675"></a>00675 {
<a name="l00676"></a>00676 extrema.<a class="codeRef" href="qvariant.html#type">type</a> = PreferencesMaxima::PM_INT;
<a name="l00677"></a>00677 extrema.iMin = p.<a class="codeRef" href="qvariant.html#toInt">toInt</a>();
<a name="l00678"></a>00678 extrema.iMax = p.<a class="codeRef" href="qvariant.html#toInt">toInt</a>();
<a name="l00679"></a>00679 }
<a name="l00680"></a>00680 <span class="comment">// Correct existing extrema</span>
<a name="l00681"></a>00681 <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( extrema.type == PreferencesMaxima::PM_INT )
<a name="l00682"></a>00682 {
<a name="l00683"></a>00683 <span class="keywordflow">if</span> ( p.<a class="codeRef" href="qvariant.html#toInt">toInt</a>() < extrema.iMin )
<a name="l00684"></a>00684 extrema.iMin = p.<a class="codeRef" href="qvariant.html#toInt">toInt</a>();
<a name="l00685"></a>00685 <span class="keywordflow">if</span> ( p.<a class="codeRef" href="qvariant.html#toInt">toInt</a>() > extrema.iMax )
<a name="l00686"></a>00686 extrema.iMax = p.<a class="codeRef" href="qvariant.html#toInt">toInt</a>();
<a name="l00687"></a>00687 }
<a name="l00688"></a>00688 <span class="comment">// Determine new maximum/minimum</span>
<a name="l00689"></a>00689 <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( extrema.type == PreferencesMaxima::PM_INVALID_DOUBLE )
<a name="l00690"></a>00690 {
<a name="l00691"></a>00691 extrema.type = PreferencesMaxima::PM_DOUBLE;
<a name="l00692"></a>00692 extrema.fMin = p.<a class="codeRef" href="qvariant.html#toDouble">toDouble</a>();
<a name="l00693"></a>00693 extrema.fMax = p.<a class="codeRef" href="qvariant.html#toDouble">toDouble</a>();
<a name="l00694"></a>00694 }
<a name="l00695"></a>00695 <span class="comment">// Correct existing extrema</span>
<a name="l00696"></a>00696 <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( extrema.type == PreferencesMaxima::PM_DOUBLE )
<a name="l00697"></a>00697 {
<a name="l00698"></a>00698 <span class="keywordflow">if</span> ( p.<a class="codeRef" href="qvariant.html#toDouble">toDouble</a>() < it.data().fMin )
<a name="l00699"></a>00699 extrema.fMin = p.<a class="codeRef" href="qvariant.html#toDouble">toDouble</a>();
<a name="l00700"></a>00700 <span class="keywordflow">if</span> ( p.<a class="codeRef" href="qvariant.html#toDouble">toDouble</a>() > it.data().fMax )
<a name="l00701"></a>00701 extrema.fMax = p.<a class="codeRef" href="qvariant.html#toDouble">toDouble</a>();
<a name="l00702"></a>00702 }
<a name="l00703"></a>00703 }
<a name="l00704"></a>00704 }
<a name="l00705"></a>00705
<a name="l00706"></a>00706 <span class="comment">// Cache the result</span>
<a name="l00707"></a>00707 maxima.<a class="codeRef" href="qmap.html#insert">insert</a>( _prop, extrema );
<a name="l00708"></a>00708
<a name="l00709"></a>00709 <span class="comment">// Did we succeed ?</span>
<a name="l00710"></a>00710 <span class="keywordflow">return</span> ( extrema.type == PreferencesMaxima::PM_DOUBLE ||
<a name="l00711"></a>00711 extrema.type == PreferencesMaxima::PM_INT );
<a name="l00712"></a>00712 }
<a name="l00713"></a>00713
<a name="l00714"></a>00714 }
</pre></div></div>
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