63 lines
2.3 KiB
Python
63 lines
2.3 KiB
Python
from PyQt5.QtWidgets import QApplication, QTextEdit
|
|
from PyQt5.QtGui import QSyntaxHighlighter, QTextCharFormat, QFont, QColor
|
|
from PyQt5.QtCore import QRegularExpression, Qt
|
|
|
|
class CodeEditor(QTextEdit):
|
|
def __init__(self):
|
|
super().__init__()
|
|
self.setFont(QFont("Courier New", 12))
|
|
self.highlighter = CodeHighlighter(self.document())
|
|
self.highlighter.rehighlight()
|
|
|
|
def paste(self):
|
|
super().paste()
|
|
self.highlighter.rehighlight()
|
|
|
|
class CodeHighlighter(QSyntaxHighlighter):
|
|
def __init__(self, document):
|
|
super().__init__(document)
|
|
self.highlightingRules = []
|
|
|
|
# 定义 JSON 高亮规则
|
|
self.keyFormat = QTextCharFormat()
|
|
self.keyFormat.setForeground(Qt.GlobalColor.darkBlue)
|
|
self.keyFormat.setFontWeight(QFont.Bold)
|
|
|
|
self.valueFormat = QTextCharFormat()
|
|
self.valueFormat.setForeground(Qt.GlobalColor.darkGreen)
|
|
|
|
self.boolFormat = QTextCharFormat()
|
|
self.boolFormat.setForeground(Qt.GlobalColor.red)
|
|
|
|
self.numberFormat = QTextCharFormat()
|
|
self.numberFormat.setForeground(Qt.GlobalColor.darkCyan)
|
|
|
|
# 创建蓝色格式
|
|
blueFormat = QTextCharFormat()
|
|
blueFormat.setForeground(Qt.GlobalColor.blue)
|
|
|
|
self.rules = [
|
|
(QRegularExpression(r'\b(true|false|null)\b'), self.boolFormat),
|
|
(QRegularExpression(r'\b(-?\d+\.?\d*)\b'), self.numberFormat),
|
|
(QRegularExpression(r'\{'), blueFormat),
|
|
(QRegularExpression(r'\}'), blueFormat),
|
|
(QRegularExpression(r'\['), blueFormat),
|
|
(QRegularExpression(r'\]'), blueFormat),
|
|
(QRegularExpression(r'\"(\\.|[^"\\])*\"'), self.valueFormat),
|
|
(QRegularExpression(r'\b(\w+)\s*:'), self.keyFormat)
|
|
]
|
|
|
|
def highlightBlock(self, text):
|
|
for pattern, format in self.rules:
|
|
expression = QRegularExpression(pattern)
|
|
matchIterator = expression.globalMatch(text)
|
|
while matchIterator.hasNext():
|
|
match = matchIterator.next()
|
|
self.setFormat(match.capturedStart(), match.capturedLength(), format)
|
|
|
|
if __name__ == "__main__":
|
|
import sys
|
|
app = QApplication(sys.argv)
|
|
editor = CodeEditor()
|
|
editor.show()
|
|
sys.exit(app.exec_()) |