PyParsing处理相似文本时一处抛异常一处不抛的问题求助

环境信息 #

• 系统：Ubuntu 20.04
• Python版本：3.12
• PyParsing：通过pip安装，本人为PyParsing新手

问题 #

两段相似文本使用同一解析代码时，其中一段触发ParseException，另一段无异常。已为解析器开启setName并输出诊断消息，恳请帮忙排查原因。

解析代码 #

prasnaS.setName("prasna")
parser = englishPreface + invocation + titleLine + pp.ZeroOrMore(EmptyLine) + pp.OneOrMore(prasnaS) + EmptyLine
result = parser.parse_string(text)

文本1的诊断及异常信息 #

Match prasna at loc 155535(2247,2)
  
   ^
Match prasna failed, ParseException raised: Expected prasna, found end of text  (at char 155535), (line:2247, col:2)
Exception  <traceback object at 0x7f53a00739c0>
Traceback (most recent call last):
  File "//home/xxxxx/projects/aksr/doc2txt.py", line 158, in <module>
    result =parser.parse_string(text)
            ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "//home/xxxxx/projects/aksr/myenv1/lib/python3.12/site-packages/pyparsing/core.py", line 1197, in parse_string
    raise exc.with_traceback(None)
pyparsing.exceptions.ParseException: , found end of text  (at char 155535), (line:2247, col:2)

文本2的诊断信息（无异常抛出） #

Match prasna at loc 179582(1977,1)
  
  ^
Match prasna failed, ParseException raised: , found end of text  (at char 179585), (line:1980, col:1)

内容的提问来源于stack exchange，提问作者Harihara Vinayakaram