Source Code for Module node_manager_fkie.yaml_highlighter

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  2  # 
  3  # Copyright (c) 2012, Fraunhofer FKIE/US, Alexander Tiderko 
  4  # based on code of Timo Roehling 
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 33   
 34  from python_qt_binding import QtGui 
 35  from python_qt_binding import QtCore 
 36   
 37 -class YamlHighlighter(QtGui.QSyntaxHighlighter): 
 38    ''' 
 39    Enabled the syntax highlightning for the yaml files. 
 40    ''' 
 41     
 42 -  def __init__(self, parent=None): 
 43      QtGui.QSyntaxHighlighter.__init__(self, parent) 
 44      self.rules = [] 
 45      self.commentStart = QtCore.QRegExp("#") 
 46      self.commentEnd = QtCore.QRegExp("\n|\r") 
 47      self.commentFormat = QtGui.QTextCharFormat() 
 48      self.commentFormat.setFontItalic(True) 
 49      self.commentFormat.setForeground(QtCore.Qt.darkGray) 
 50   
 51      f = QtGui.QTextCharFormat() 
 52      r = QtCore.QRegExp() 
 53      r.setMinimal(True) 
 54      f.setFontWeight(QtGui.QFont.Normal) 
 55      f.setForeground (QtCore.Qt.blue) 
 56      tagList = ["\\btrue\\b", "\\bfalse\\b"] 
 57      for tag in tagList: 
 58        r.setPattern(tag) 
 59        self.rules.append((QtCore.QRegExp(r), QtGui.QTextCharFormat(f))) 
 60   
 61      f.setForeground(QtGui.QColor(127,64,127)) 
 62      r.setPattern ("\\d+") 
 63      self.rules.append((QtCore.QRegExp(r), QtGui.QTextCharFormat(f))) 
 64   
 65      f.setForeground(QtCore.Qt.darkBlue) 
 66      r.setPattern("^\s*[_.\w]*\s*:") 
 67      self.rules.append((QtCore.QRegExp(r), QtGui.QTextCharFormat(f))) 
 68   
 69      f.setForeground(QtCore.Qt.darkBlue) 
 70      r.setPattern(":\s*:[_\.\w]*$|:\s*\@[_\.\w]*$") 
 71      self.rules.append((QtCore.QRegExp(r), QtGui.QTextCharFormat(f))) 
 72   
 73      f.setFontWeight(QtGui.QFont.Bold) 
 74      f.setForeground(QtCore.Qt.darkRed) 
 75      r.setPattern("^\s*-") 
 76      self.rules.append((QtCore.QRegExp(r), QtGui.QTextCharFormat(f))) 
 77   
 78      f.setForeground(QtCore.Qt.darkRed) 
 79      r.setPattern("^---$") 
 80      self.rules.append((QtCore.QRegExp(r), QtGui.QTextCharFormat(f))) 
 81   
 82      f.setForeground(QtCore.Qt.darkGreen) 
 83      r.setPattern("[\[\]\{\}\,]") 
 84      self.rules.append((QtCore.QRegExp(r), QtGui.QTextCharFormat(f))) 
 85   
 86      f.setFontWeight(QtGui.QFont.Normal) 
 87      f.setForeground(QtCore.Qt.magenta) 
 88      r.setPattern("\".*\"|\'.*\'") 
 89      self.rules.append((QtCore.QRegExp(r), QtGui.QTextCharFormat(f))) 
 90   
 91      f.setForeground(QtGui.QColor(127,64,127)) 
 92      r.setPattern ("\\$\\(.*\\)") 
 93      self.rules.append((QtCore.QRegExp(r), QtGui.QTextCharFormat(f))) 
 94   
 95      f.setForeground (QtCore.Qt.lightGray) 
 96      r.setPattern ("<!DOCTYPE.*>") 
 97      self.rules.append((QtCore.QRegExp(r), QtGui.QTextCharFormat(f))) 
 98      r.setPattern ("<\\?xml.*\\?>") 
 99      self.rules.append((QtCore.QRegExp(r), QtGui.QTextCharFormat(f))) 
100   
101   
102 -  def highlightBlock(self, text): 
103      for pattern, format in self.rules: 
104        index = pattern.indexIn(text) 
105        while index >= 0: 
106          length = pattern.matchedLength() 
107          self.setFormat(index, length, format) 
108          index = pattern.indexIn(text, index + length) 
109   
110      # mark comment blocks 
111      self.setCurrentBlockState(0) 
112      startIndex = 0 
113      if self.previousBlockState() != 1: 
114        startIndex = self.commentStart.indexIn(text) 
115        if startIndex >= 0: 
116          commentLength = len(text) - startIndex 
117          self.setFormat(startIndex, commentLength, self.commentFormat) 
118