def highlightBlock(self, text):
#print "DBG: highlightBlock %s" % ( text )
# apply rules
for rule in self.highlightingRules:
expression = QtCore.QRegExp(rule[0])
index = expression.indexIn(text)
while index >= 0:
length = expression.matchedLength()
self.setFormat(index, length, rule[1])
index = expression.indexIn(text, index + length)
self.setCurrentBlockState(0)
# multiline comment handling
startIndex = 0
if self.previousBlockState() != 1:
startIndex = self.commentStartExpression.indexIn(text)
while startIndex >= 0:
endIndex = self.commentEndExpression.indexIn(text, startIndex)
commentLength = 0
if endIndex == -1:
self.setCurrentBlockState(1)
if not usePyQt5:
commentLength = text.length() - startIndex
else:
commentLength = len(text) - startIndex
else:
commentLength = endIndex - startIndex + self.commentEndExpression.matchedLength(
)
self.setFormat(startIndex, commentLength,
self.multiLineCommentFormat)
startIndex = self.commentStartExpression.indexIn(
text, startIndex + commentLength)
def __init__(self, textDocument, mode='SL'):
#
QtGui.QSyntaxHighlighter.__init__(self, textDocument)
self.mode = mode
self.highlightingRules = []
syntax_colors = {}
syntax_colors['types'] = QtCore.Qt.blue
syntax_colors['literal'] = QtCore.Qt.darkGreen
syntax_colors['comment'] = QtCore.Qt.darkGray
syntax_colors['function'] = QtCore.Qt.darkMagenta
syntax_colors['params'] = QtCore.Qt.red
syntax_colors['globals'] = QtCore.Qt.darkCyan
# types
self.typeFormat = QtGui.QTextCharFormat()
self.typeFormat.setForeground(syntax_colors['types'])
typePatterns = [
'\\bfloat\\b', '\\bcolor\\b', '\\bmatrix\\b', '\\bvector\\b',
'\\bstring\\b', '\\bpoint\\b', '\\bnormal\\b'
]
for typePattern in typePatterns:
typeRule = (QtCore.QRegExp(typePattern), self.typeFormat)
self.highlightingRules.append(typeRule)
# single line comment
self.singleLineCommentFormat = QtGui.QTextCharFormat()
self.singleLineCommentFormat.setForeground(syntax_colors['comment'])
singleLineCommentRule = (QtCore.QRegExp('//[^\n]*'),
self.singleLineCommentFormat)
self.highlightingRules.append(singleLineCommentRule)
# multiline comment
self.multiLineCommentFormat = QtGui.QTextCharFormat()
self.multiLineCommentFormat.setForeground(syntax_colors['comment'])
self.commentStartExpression = QtCore.QRegExp("/\\*")
self.commentEndExpression = QtCore.QRegExp("\\*/")
# literal
self.literalFormat = QtGui.QTextCharFormat()
self.literalFormat.setForeground(syntax_colors['literal'])
literalRule_1 = (QtCore.QRegExp('\"[A-Za-z0-9_]+\"'),
self.literalFormat)
literalRule_2 = (QtCore.QRegExp("\'[A-Za-z0-9_]+\'"),
self.literalFormat)
self.highlightingRules.append(literalRule_1)
self.highlightingRules.append(literalRule_2)
# function
self.functionFormat = QtGui.QTextCharFormat()
self.functionFormat.setForeground(syntax_colors['function'])
functionRule = (QtCore.QRegExp('\\b[A-Za-z0-9_]+ ?(?=\\()'),
self.functionFormat)
self.highlightingRules.append(functionRule)
# params
self.paramsFormat = QtGui.QTextCharFormat()
self.paramsFormat.setForeground(syntax_colors['params'])
paramsRule = (QtCore.QRegExp('\$\([A-Za-z0-9_]+\)'), self.paramsFormat)
self.highlightingRules.append(paramsRule)
# globals
self.globalsFormat = QtGui.QTextCharFormat()
self.globalsFormat.setForeground(syntax_colors['globals'])
globalsRule = (QtCore.QRegExp('\$\{[A-Za-z0-9_]+\}'),
self.globalsFormat)
self.highlightingRules.append(globalsRule)
