def highlightBlock(self, text): for pattern, format in self.rules: exp = QRegExp(pattern) index = exp.indexIn(text) while index >= 0: length = exp.matchedLength() if exp.captureCount() > 0: self.setFormat(exp.pos(1), len(str(exp.cap(1))), format) else: self.setFormat(exp.pos(0), len(str(exp.cap(0))), format) index = exp.indexIn(text, index + length) # Multi line strings start = self.multilineStart end = self.multilineEnd self.setCurrentBlockState(0) startIndex, skip = 0, 0 if self.previousBlockState() != 1: startIndex, skip = start.indexIn(text), 3 while startIndex >= 0: endIndex = end.indexIn(text, startIndex + skip) if endIndex == -1: self.setCurrentBlockState(1) commentLen = len(text) - startIndex else: commentLen = endIndex - startIndex + 3 self.setFormat(startIndex, commentLen, self.stringFormat) startIndex, skip = (start.indexIn(text, startIndex + commentLen + 3), 3)
class MacroHighlighter(QSyntaxHighlighter): def __init__(self, textboxdoc, valid_list_of_commands): QSyntaxHighlighter.__init__(self, textboxdoc) self.valid_syntax = "|".join( [command.regexp_str for command in valid_list_of_commands]) self.my_expression = QRegExp(self.valid_syntax) #define a blue font format for valid commands self.valid = QTextCharFormat() self.valid.setForeground(Qt.black) #define a bold red font format for invalid commands self.invalid = QTextCharFormat() self.invalid.setFontWeight(QFont.Bold) self.invalid.setForeground(Qt.red) #define a blue font format for valid parameters self.valid_value = QTextCharFormat() self.valid_value.setFontWeight(QFont.Bold) #self.valid_value.setForeground(QColor.fromRgb(255,85,0)) self.valid_value.setForeground(Qt.blue) def highlightBlock(self, text): #this function is automatically called when some text is changed #in the texbox. 'text' is the line of text where the change occured #check if the line of text contains a valid command match = self.my_expression.exactMatch(text) if match: #valid command found: highlight the command in blue self.setFormat(0, len(text), self.valid) #highlight the parameters in orange #loop on all the parameters that can be captured for i in range(self.my_expression.captureCount()): #if a parameter was captured, it's position in the text will be >=0 and its capture contains some value 'xxx' #otherwise its position is -1 and its capture contains an empty string '' if self.my_expression.pos(i + 1) != -1: self.setFormat(self.my_expression.pos(i + 1), len(self.my_expression.cap(i + 1)), self.valid_value) else: #no valid command found: highlight in red self.setFormat(0, len(text), self.invalid)
class MacroHighlighter(QSyntaxHighlighter): def __init__(self,textboxdoc,valid_list_of_commands): QSyntaxHighlighter.__init__(self,textboxdoc) self.valid_syntax="|".join([command.regexp_str for command in valid_list_of_commands]) self.my_expression = QRegExp(self.valid_syntax) #define a blue font format for valid commands self.valid = QTextCharFormat() self.valid.setForeground(Qt.black) #define a bold red font format for invalid commands self.invalid = QTextCharFormat() self.invalid.setFontWeight(QFont.Bold) self.invalid.setForeground(Qt.red) #define a blue font format for valid parameters self.valid_value=QTextCharFormat() self.valid_value.setFontWeight(QFont.Bold) #self.valid_value.setForeground(QColor.fromRgb(255,85,0)) self.valid_value.setForeground(Qt.blue) def highlightBlock(self, text): #this function is automatically called when some text is changed #in the texbox. 'text' is the line of text where the change occured #check if the line of text contains a valid command match = self.my_expression.exactMatch(text) if match: #valid command found: highlight the command in blue self.setFormat(0, len(text), self.valid) #highlight the parameters in orange #loop on all the parameters that can be captured for i in range(self.my_expression.captureCount()): #if a parameter was captured, it's position in the text will be >=0 and its capture contains some value 'xxx' #otherwise its position is -1 and its capture contains an empty string '' if self.my_expression.pos(i+1)!=-1: self.setFormat(self.my_expression.pos(i+1), len(self.my_expression.cap(i+1)), self.valid_value) else: #no valid command found: highlight in red self.setFormat(0, len(text), self.invalid)