runtime/khelpcenter/formatter.cpp

   1 /*
   2     This file is part of KHelpcenter.
   3
   4     Copyright (c) 2003 Cornelius Schumacher <schumacher@kde.org>
   5
   6     This program is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     This program is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with this program; if not, write to the Free Software
  18     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  19 */
  20
  21 #include "formatter.h"
  22
  23 #include <klocale.h>
  24 #include <kglobal.h>
  25 #include <kdebug.h>
  26 #include <kconfig.h>
  27 #include <kconfiggroup.h>
  28 #include <kstandarddirs.h>
  29
  30 #include <QFile>
  31 #include <QTextStream>
  32
  33 using namespace KHC;
  34
  35 Formatter::Formatter()
  36   : mHasTemplate( false )
  37 {
  38 }
  39
  40 Formatter:: ~Formatter()
  41 {
  42 }
  43
  44 bool Formatter::readTemplates()
  45 {
  46   KConfigGroup cfg(KGlobal::config(), "Templates");
  47   QString mainTemplate = cfg.readEntry( "MainTemplate" );
  48
  49   if ( mainTemplate.isEmpty() ) {
  50     mainTemplate = KStandardDirs::locate( "appdata", "maintemplate" );
  51   }
  52
  53   if ( mainTemplate.isEmpty() ) {
  54     kWarning() << "Main template file name is empty." ;
  55     return false;
  56   }
  57
  58   QFile f( mainTemplate );
  59   if ( !f.open( QIODevice::ReadOnly ) ) {
  60     kWarning() << "Unable to open main template file '" << mainTemplate
  61                 << "'." << endl;
  62     return false;
  63   }
  64
  65   QTextStream ts( &f );
  66   QString line;
  67   enum State { IDLE, SINGLELINE, MULTILINE };
  68   State state = IDLE;
  69   QString symbol;
  70   QString endMarker;
  71   QString value;
  72   while( !( line = ts.readLine() ).isNull() ) {
  73     switch ( state ) {
  74       case IDLE:
  75         if ( !line.isEmpty() && !line.startsWith( '#' ) ) {
  76           int pos = line.indexOf( "<<" );
  77           if ( pos >= 0 ) {
  78             state = MULTILINE;
  79             symbol = line.left( pos ).trimmed();
  80             endMarker = line.mid( pos + 2 ).trimmed();
  81           } else {
  82             state = SINGLELINE;
  83             symbol = line.trimmed();
  84           }
  85         }
  86         break;
  87       case SINGLELINE:
  88         mSymbols.insert( symbol, line );
  89         state = IDLE;
  90         break;
  91       case MULTILINE:
  92         if ( line.startsWith( endMarker ) ) {
  93           mSymbols.insert( symbol, value );
  94           value = "";
  95           state = IDLE;
  96         } else {
  97           value += line + '\n';
  98         }
  99         break;
 100       default:
 101         kError() << "Formatter::readTemplates(): Illegal state: "
 102                   << static_cast<int>(state) << endl;
 103         break;
 104     }
 105   }
 106
 107   f.close();
 108
 109 #if 0
 110   QMap<QString,QString>::ConstIterator it;
 111   for( it = mSymbols.begin(); it != mSymbols.end(); ++it ) {
 112     kDebug() << "KEY: " << it.key();
 113     kDebug() << "VALUE: " << it.data();
 114   }
 115 #endif
 116
 117   QStringList requiredSymbols;
 118   requiredSymbols << "HEADER" << "FOOTER";
 119
 120   bool success = true;
 121   QStringList::ConstIterator it2;
 122   for( it2 = requiredSymbols.begin(); it2 != requiredSymbols.end(); ++it2 ) {
 123     if ( !mSymbols.contains( *it2 ) ) {
 124       success = false;
 125       kError() << "Symbol '" << *it2 << "' is missing from main template file."
 126                 << endl;
 127     }
 128   }
 129
 130   if ( success ) mHasTemplate = true;
 131
 132   return success;
 133 }
 134
 135 QString Formatter::header( const QString &title )
 136 {
 137   QString s;
 138   if ( mHasTemplate ) {
 139     s = mSymbols[ "HEADER" ];
 140     s.replace( "--TITLE:--", title );
 141   } else {
 142     s = QLatin1String("<html><head><title>") + title + QLatin1String("</title></head>\n<body>\n");
 143   }
 144   return s;
 145 }
 146
 147 QString Formatter::footer()
 148 {
 149   if ( mHasTemplate ) {
 150     return mSymbols[ "FOOTER" ];
 151   } else {
 152     return QLatin1String("</body></html>");
 153   }
 154 }
 155
 156 QString Formatter::separator()
 157 {
 158 //  return "<table width=100%><tr><td bgcolor=\"#7B8962\">&nbsp;"
 159 //         "</td></tr></table>";
 160   return "<hr>";
 161 }
 162
 163 QString Formatter::docTitle( const QString &title )
 164 {
 165   return QLatin1String("<h3><font color=\"red\">") + title + QLatin1String("</font></h3>");
 166 }
 167
 168 QString Formatter::sectionHeader( const QString &section )
 169 {
 170   return QLatin1String("<h2><font color=\"blue\">") + section + QLatin1String("</font></h2>");
 171 }
 172
 173 QString Formatter::processResult( const QString &data )
 174 {
 175   QString result;
 176
 177   enum { Header, BodyTag, Body, Footer };
 178
 179   int state = Header;
 180
 181   for( int i = 0; i < data.length(); ++i ) {
 182     QChar c = data[i];
 183     switch ( state ) {
 184       case Header:
 185         if ( c == QLatin1Char('<') && data.mid( i, 5 ).toLower() == QLatin1String("<body") ) {
 186           state = BodyTag;
 187           i += 4;
 188         }
 189         break;
 190       case BodyTag:
 191         if ( c == '>' ) state = Body;
 192         break;
 193       case Body:
 194         if ( c == QLatin1Char('<') && data.mid( i, 7 ).toLower() == QLatin1String("</body>") ) {
 195           state = Footer;
 196         } else {
 197           result.append( c );
 198         }
 199         break;
 200       case Footer:
 201         break;
 202       default:
 203         result.append( c );
 204         break;
 205     }
 206   }
 207
 208   if ( state == Header ) return data;
 209   else return result;
 210 }
 211
 212 QString Formatter::paragraph( const QString &str )
 213 {
 214   return QLatin1String("<p>") + str + QLatin1String("</p>");
 215 }
 216
 217 QString Formatter::title( const QString &title )
 218 {
 219   return QLatin1String("<h2>") + title + QLatin1String("</h2>");
 220 }
 221
 222 // vim:ts=2:sw=2:et