82 lines
2.3 KiB
Python
82 lines
2.3 KiB
Python
#-*-coding:utf-8-*-
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import sys, re
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from PyQt4.QtGui import *
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from PyQt4.QtCore import *
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class MyHighlighter( QSyntaxHighlighter ):
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def __init__( self, parent, theme ):
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QSyntaxHighlighter.__init__( self, parent )
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self.parent = parent
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self.parenthesis_color = [Qt.red, Qt.green, Qt.blue]
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def textFormat(self, color):
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init_format = QTextCharFormat()
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brush = QBrush( color, Qt.SolidPattern )
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init_format.setForeground( brush )
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return init_format
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def highlightBlock( self, text ):
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''' ( ( ) )
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paren_level ___0___|__1__|__2_|__1_|__0
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'''
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paren_level = self.previousBlockState()
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if paren_level == -1: # 若是沒有上次的狀態，就設為0
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paren_level = 0
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paren_size = 1
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iterator = re.finditer("[()]", text)
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paran_and_offset = [{"paren": match.group(0), "offset": match.start()} for match in iterator]
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print(paran_and_offset)
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for i in paran_and_offset:
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if i["paren"] == QString('('):
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print("paren_level %d" % paren_level)
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self.setFormat( i["offset"], paren_size , self.textFormat(self.parenthesis_color[paren_level]) )
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paren_level += 1
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elif i["paren"] == QString(')'):
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print(paren_level)
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paren_level -= 1
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self.setFormat( i["offset"], paren_size , self.textFormat(self.parenthesis_color[paren_level]) )
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else:
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pass
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self.setCurrentBlockState(paren_level)
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class HighlightingRule():
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def __init__( self, pattern, format ):
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self.pattern = pattern
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self.format = format
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class TestApp( QMainWindow ):
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def __init__(self):
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QMainWindow.__init__(self)
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font = QFont()
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font.setFamily( "Noto Sans Mono" )
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font.setFixedPitch( True )
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font.setPointSize( 11 )
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editor = QTextEdit()
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editor.setFont( font )
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highlighter = MyHighlighter( editor, "Classic" )
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self.setCentralWidget( editor )
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self.setWindowTitle( "Syntax Highlighter" )
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if __name__ == "__main__":
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app = QApplication( sys.argv )
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window = TestApp()
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window.show()
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sys.exit( app.exec_() )
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