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Solid

predicateparse.cpp

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00001 /*  This file is part of the KDE project
00002     Copyright (C) 2006 Kevin Ottens <ervin@kde.org>
00003 
00004     This library is free software; you can redistribute it and/or
00005     modify it under the terms of the GNU Library General Public
00006     License version 2 as published by the Free Software Foundation.
00007 
00008     This library is distributed in the hope that it will be useful,
00009     but WITHOUT ANY WARRANTY; without even the implied warranty of
00010     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00011     Library General Public License for more details.
00012 
00013     You should have received a copy of the GNU Library General Public License
00014     along with this library; see the file COPYING.LIB.  If not, write to
00015     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00016     Boston, MA 02110-1301, USA.
00017 
00018 */
00019 
00020 extern "C"
00021 {
00022 #include "predicateparse.h"
00023 
00024 void PredicateParse_mainParse(const char *_code);
00025 }
00026 
00027 #include "predicate.h"
00028 
00029 #include <stdlib.h>
00030 
00031 #include <QtCore/QStringList>
00032 
00033 static Solid::Predicate *s_result = 0;
00034 
00035 Solid::Predicate Solid::Predicate::fromString(const QString &predicate)
00036 {
00037     PredicateParse_mainParse(predicate.toAscii());
00038 
00039     if (s_result == 0)
00040     {
00041         return Predicate();
00042     }
00043     else
00044     {
00045         Predicate result(*s_result);
00046         delete s_result;
00047         s_result = 0;
00048         return result;
00049     }
00050 }
00051 
00052 
00053 void PredicateParse_setResult(void *result)
00054 {
00055     s_result = (Solid::Predicate *) result;
00056 }
00057 
00058 void PredicateParse_errorDetected()
00059 {
00060     s_result = 0;
00061 }
00062 
00063 void PredicateParse_destroy(void *pred)
00064 {
00065     Solid::Predicate *p = (Solid::Predicate *) pred;
00066     if (p != s_result) {
00067         delete p;
00068     }
00069 }
00070 
00071 void *PredicateParse_newAtom(char *interface, char *property, void *value)
00072 {
00073     QString iface(interface);
00074     QString prop(property);
00075     QVariant *val = (QVariant *)value;
00076 
00077     Solid::Predicate *result = new Solid::Predicate(iface, prop, *val);
00078 
00079     delete val;
00080     free(interface);
00081     free(property);
00082 
00083     return result;
00084 }
00085 
00086 void *PredicateParse_newMaskAtom(char *interface, char *property, void *value)
00087 {
00088     QString iface(interface);
00089     QString prop(property);
00090     QVariant *val = (QVariant *)value;
00091 
00092     Solid::Predicate *result = new Solid::Predicate(iface, prop, *val, Solid::Predicate::Mask);
00093 
00094     delete val;
00095     free(interface);
00096     free(property);
00097 
00098     return result;
00099 }
00100 
00101 
00102 void *PredicateParse_newIsAtom(char *interface)
00103 {
00104     QString iface(interface);
00105 
00106     Solid::Predicate *result = new Solid::Predicate(iface);
00107 
00108     free(interface);
00109 
00110     return result;
00111 }
00112 
00113 
00114 void *PredicateParse_newAnd(void *pred1, void *pred2)
00115 {
00116     Solid::Predicate *result = new Solid::Predicate();
00117 
00118     Solid::Predicate *p1 = (Solid::Predicate *)pred1;
00119     Solid::Predicate *p2 = (Solid::Predicate *)pred2;
00120 
00121     if (p1==s_result || p2==s_result) {
00122         s_result = 0;
00123     }
00124 
00125     *result = *p1 & *p2;
00126 
00127     delete p1;
00128     delete p2;
00129 
00130     return result;
00131 }
00132 
00133 
00134 void *PredicateParse_newOr(void *pred1, void *pred2)
00135 {
00136     Solid::Predicate *result = new Solid::Predicate();
00137 
00138     Solid::Predicate *p1 = (Solid::Predicate *)pred1;
00139     Solid::Predicate *p2 = (Solid::Predicate *)pred2;
00140 
00141     if (p1==s_result || p2==s_result) {
00142         s_result = 0;
00143     }
00144 
00145     *result = *p1 | *p2;
00146 
00147     delete p1;
00148     delete p2;
00149 
00150     return result;
00151 }
00152 
00153 
00154 void *PredicateParse_newStringValue(char *val)
00155 {
00156     QString s(val);
00157 
00158     free(val);
00159 
00160     return new QVariant(s);
00161 }
00162 
00163 
00164 void *PredicateParse_newBoolValue(int val)
00165 {
00166     bool b = (val != 0);
00167     return new QVariant(b);
00168 }
00169 
00170 
00171 void *PredicateParse_newNumValue(int val)
00172 {
00173     return new QVariant(val);
00174 }
00175 
00176 
00177 void *PredicateParse_newDoubleValue(double val)
00178 {
00179     return new QVariant(val);
00180 }
00181 
00182 
00183 void *PredicateParse_newEmptyStringListValue()
00184 {
00185     return new QVariant(QStringList());
00186 }
00187 
00188 
00189 void *PredicateParse_newStringListValue(char *name)
00190 {
00191     QStringList list;
00192     list << QString(name);
00193 
00194     free(name);
00195 
00196     return new QVariant(list);
00197 }
00198 
00199 
00200 void *PredicateParse_appendStringListValue(char *name, void *list)
00201 {
00202     QVariant *variant = (QVariant *)list;
00203 
00204     QStringList new_list = variant->toStringList();
00205 
00206     new_list << QString(name);
00207 
00208     delete variant;
00209     free(name);
00210 
00211     return new QVariant(new_list);
00212 }

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