refinemathpix中增加对langle和rangle前\left与\right的处理

工具v2/database_tools.py

@@ -1223,6 +1223,7 @@ def RefineMathpix(raw_string): # 进一步修改mathpix得到的字符串
     string = re.sub(r"\\right([\.\)\]|])",lambda matchobj: "" if matchobj.group(1) == "." else matchobj.group(1),string) #删去括号前的\right标记\
     string = re.sub(r"\\left\\\{","\\{",string) #删去大括号前的\left标记
     string = re.sub(r"\\right\\\}","\\}",string) #删去大括号前的\right标记
+    string = string.replace("\\left\\langle","\\langle").replace("\\right\\rangle","\\rangle")
     for s in puctuationsfulltosemi:
         string = re.sub(s,puctuationsfulltosemi[s],string) #将部分全角标记替换为半角
     for s in replacestrings: