Merge branch 'main' of https://github.com/Byaidu/PDFMathTranslate

README.md

@@ -43,7 +43,7 @@ pdf2zh example.pdf -p 1 2 3
 ### 使用正则表达式指定需要保留样式的公式字体和字符
 
 ```bash
-pdf2zh BDA3.pdf -f ".*\+(CM[^R].*|MS.*|XY.*|.*0700|.*0500)" -c "(\(|\||=|\u02dc|\u02c6|\u2248|\u223c|\u221d|\u0393|\d|\)|\+)"
+pdf2zh BDA3.pdf -f ".*\+(CM[^R].*|MS.*|XY.*|.*0700|.*0500)" -c "(\(|\||\)|\+|=|\d|[\u0080-\uffff])"
 ```
 
 ## 致谢