git.maemo.org Git - vym/blob - highlighter.cpp

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  23
  24 // highlighting rules have been adapted by Uwe Drechsel to match vym syntax
  25
  26
  27 #include <QtGui>
  28
  29 #include "highlighter.h"
  30
  31 Highlighter::Highlighter(QTextDocument *parent)
  32     : QSyntaxHighlighter(parent)
  33 {
  34     HighlightingRule rule;
  35
  36     keywordFormat.setForeground(Qt::darkBlue);
  37     keywordFormat.setFontWeight(QFont::Bold);
  38     QStringList keywordPatterns;
  39     keywordPatterns << "\\baddBranch\\b"
  40                                         << "\\baddBranchBefore\\b"
  41                     << "\\baddMapCenter\\b"
  42                     << "\\baddMapInsert\\b"
  43                                         << "\\baddMapReplace\\b"
  44                     << "\\bcolorBranch\\b"
  45                                         << "\\bcolorSubtree\\b"
  46                                         << "\\bcopy\\b"
  47                     << "\\bcut\\b"
  48                                         << "\\bdelete\\b"
  49                                         << "\\bdeleteKeepChilds\\b"
  50                                         << "\\bdeleteChilds\\b"
  51                                         << "\\bexportASCII\\b"
  52                                         << "\\bexportImage\\b"
  53                                         << "\\bexportXHTML\\b"
  54                                         << "\\bexportXML\\b"
  55                                         << "\\bimportDir\\b"
  56                                         << "\\blinkTo\\b"
  57                                         << "\\bloadImage\\b"
  58                                         << "\\bmoveBranchUp\\b"
  59                                         << "\\bmoveBranchDown\\b"
  60                                         << "\\bmove\\b"
  61                                         << "\\bmoveRel\\b"
  62                                         << "\\bnop\\b"
  63                                         << "\\bpaste\\b"
  64                                         << "\\bqa\\b"
  65                                         << "\\bsaveImage\\b"
  66                                         << "\\bscroll\\b"
  67                                         << "\\bselect\\b"
  68                                         << "\\bselectLastBranch\\b"
  69                                         << "\\bselectLastImage\\b"
  70                                         << "\\bselectLatestAdded\\b"
  71                                         << "\\bsetFrameType\\b"
  72                                         << "\\bsetFramePenColor\\b"
  73                                         << "\\bsetFrameBrushColor\\b"
  74                                         << "\\bsetFramePadding\\b"
  75                                         << "\\bsetFrameBorderWidth\\b"
  76                                         << "\\bsetHideLinkUnselected\\b"
  77                                         << "\\bsetMapAuthor\\b"
  78                                         << "\\bsetMapComment\\b"
  79                                         << "\\bsetMapBackgroundColor\\b"
  80                                         << "\\bsetMapDefLinkColor\\b"
  81                                         << "\\bsetMapDefLinkStyle\\b"
  82                                         << "\\bsetHeading\\b"
  83                                         << "\\bsetHideExport\\b"
  84                                         << "\\bsetIncludeImagesHorizontally\\b"
  85                                         << "\\bsetIncludeImagesVertically\\b"
  86                                         << "\\bsetURL\\b"
  87                                         << "\\bsetVymLink\\b"
  88                                         << "\\bsetFlag\\b"
  89                                         << "\\bsortChildren\\b"
  90                                         << "\\btoggleFlag\\b"
  91                                         << "\\bunscroll\\b"
  92                                         << "\\bunscrollChilds\\b"
  93                                         << "\\bunsetFlag\\b"
  94                                         ;
  95     foreach (QString pattern, keywordPatterns) {
  96         rule.pattern = QRegExp(pattern);
  97         rule.format = keywordFormat;
  98         highlightingRules.append(rule);
  99     }
 100
 101         // QT keywords
 102         /*
 103     classFormat.setFontWeight(QFont::Bold);
 104     classFormat.setForeground(Qt::darkMagenta);
 105     rule.pattern = QRegExp("\\bQ[A-Za-z]+\\b");
 106     rule.format = classFormat;
 107     highlightingRules.append(rule);
 108         */
 109
 110         // Single line comments
 111     singleLineCommentFormat.setForeground(Qt::red);
 112     rule.pattern = QRegExp("#[^\n]*");
 113     rule.format = singleLineCommentFormat;
 114     highlightingRules.append(rule);
 115
 116         // multiline comments
 117     multiLineCommentFormat.setForeground(Qt::red);
 118     commentStartExpression = QRegExp("/\\*");
 119     commentEndExpression = QRegExp("\\*/");
 120
 121         // Quotations
 122     quotationFormat.setForeground(Qt::darkGreen);
 123     rule.pattern = QRegExp("\".*\"");
 124     rule.format = quotationFormat;
 125     highlightingRules.append(rule);
 126
 127     QStringList valuePatterns;
 128     valuePatterns << "\\btrue\\b" << "\\bfalse\\b";
 129     foreach (QString pattern, valuePatterns) {
 130         rule.pattern = QRegExp(pattern);
 131         rule.format = quotationFormat;
 132         highlightingRules.append(rule);
 133     }
 134
 135
 136
 137         // Funtions
 138         /*
 139     functionFormat.setFontItalic(true);
 140     functionFormat.setForeground(Qt::blue);
 141     rule.pattern = QRegExp("\\b[A-Za-z0-9_]+(?=\\()");
 142     rule.format = functionFormat;
 143     highlightingRules.append(rule);
 144         */
 145
 146 }
 147
 148 void Highlighter::highlightBlock(const QString &text)
 149 {
 150     foreach (HighlightingRule rule, highlightingRules) {
 151         QRegExp expression(rule.pattern);
 152         int index = text.indexOf(expression);
 153         while (index >= 0) {
 154             int length = expression.matchedLength();
 155             setFormat(index, length, rule.format);
 156             index = text.indexOf(expression, index + length);
 157         }
 158     }
 159     setCurrentBlockState(0);
 160
 161     int startIndex = 0;
 162     if (previousBlockState() != 1)
 163         startIndex = text.indexOf(commentStartExpression);
 164
 165     while (startIndex >= 0) {
 166         int endIndex = text.indexOf(commentEndExpression, startIndex);
 167         int commentLength;
 168         if (endIndex == -1) {
 169             setCurrentBlockState(1);
 170             commentLength = text.length() - startIndex;
 171         } else {
 172             commentLength = endIndex - startIndex
 173                             + commentEndExpression.matchedLength();
 174         }
 175         setFormat(startIndex, commentLength, multiLineCommentFormat);
 176         startIndex = text.indexOf(commentStartExpression,
 177                                                 startIndex + commentLength);
 178     }
 179 }