Source Code for Module node_manager_fkie.xml_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 PySide import QtGui 
 35  from PySide import QtCore 
 36   
 37 -class XmlHighlighter(QtGui.QSyntaxHighlighter): 
 38    ''' 
 39    Enabled the syntax highlightning for the ROS launch 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("-->") 
 47      self.commentFormat = QtGui.QTextCharFormat() 
 48      f = QtGui.QTextCharFormat() 
 49      r = QtCore.QRegExp() 
 50      r.setMinimal(True) 
 51      f.setFontWeight(QtGui.QFont.Normal) 
 52      f.setForeground (QtCore.Qt.darkBlue) 
 53      tagList = ["\\blaunch\\b", "\\bnode\\b", "\\bmachine\\b", "\\binclude\\b", 
 54                 "\\bremap\\b", "\\benv-loader\\b", "\\bparam\\b", "\\brosparam\\b", 
 55                 "\\bgroup\\b", "\\btest\\b", "\\barg\\b"] 
 56      for tag in tagList: 
 57        r.setPattern(tag) 
 58        self.rules.append((QtCore.QRegExp(r), QtGui.QTextCharFormat(f))) 
 59   
 60      f.setForeground(QtCore.Qt.darkGreen) 
 61      attrList = ["\\bdeprecated=", "\\bpkg=", "\\btype=", "\\bname=", 
 62                  "\\bargs=", "\\bmachine=", "\\brespawn=", "\\brequired=", 
 63                  "\\bns=", "\\bclear_params=", "\\boutput=", "\\bcwd=", 
 64                  "\\blaunch-prefix=", "\\baddress=", "\\benv-loader=", "\\bdefault=", 
 65                  "\\buser=", "\\bpassword=", "\\btimeout=", "\\bros-root=", 
 66                  "\\bros-package-path=", "\\bfile=", "\\bclear_params=", "\\bfrom=", 
 67                  "\\bto=", "\\bvalue=", "\\btextfile=", "\\bbinfile=", 
 68                  "\\bcommand=", "\\btest-name=", "\\btime-limit=", "\\bretry=", 
 69                  "\\if=", "\\unless="] 
 70      for attr in attrList: 
 71        r.setPattern(attr) 
 72        self.rules.append((QtCore.QRegExp(r), QtGui.QTextCharFormat(f))) 
 73   
 74      f.setForeground(QtCore.Qt.magenta) 
 75      r.setPattern("\".*\"") 
 76      self.rules.append((QtCore.QRegExp(r), QtGui.QTextCharFormat(f))) 
 77   
 78      f.setForeground(QtGui.QColor(127,64,127)) 
 79      r.setPattern ("\\$\\(.*\\)") 
 80      self.rules.append((QtCore.QRegExp(r), QtGui.QTextCharFormat(f))) 
 81   
 82      f.setForeground (QtCore.Qt.lightGray) 
 83      r.setPattern ("<!DOCTYPE.*>") 
 84      self.rules.append((QtCore.QRegExp(r), QtGui.QTextCharFormat(f))) 
 85      r.setPattern ("<\\?xml.*\\?>") 
 86      self.rules.append((QtCore.QRegExp(r), QtGui.QTextCharFormat(f))) 
 87   
 88      self.commentFormat.setFontItalic(True) 
 89      self.commentFormat.setForeground(QtCore.Qt.darkGray) 
 90   
 91     
 92 -  def highlightBlock(self, text): 
 93      for pattern, format in self.rules: 
 94        index = pattern.indexIn(text) 
 95        while index >= 0: 
 96          length = pattern.matchedLength() 
 97          self.setFormat(index, length, format) 
 98          index = pattern.indexIn(text, index + length) 
 99     
100      self.setCurrentBlockState(0) 
101      startIndex = 0 
102      if self.previousBlockState() != 1: 
103        startIndex = self.commentStart.indexIn(text) 
104      while startIndex >= 0: 
105        endIndex = self.commentEnd.indexIn(text, startIndex) 
106        commentLength = 0 
107        if endIndex == -1: 
108          self.setCurrentBlockState(1) 
109          commentLength = len(text) - startIndex 
110        else: 
111          commentLength = endIndex - startIndex + self.commentEnd.matchedLength() 
112        self.setFormat(startIndex, commentLength, self.commentFormat) 
113        startIndex = self.commentStart.indexIn(text, startIndex + commentLength) 
114