24 lines
919 B
Diff
24 lines
919 B
Diff
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From e0826a2ec69bc3cf71ba7ca7945774d9213d7d5e Mon Sep 17 00:00:00 2001
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From: Kyle Sunden <git@ksunden.space>
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Date: Wed, 5 Jul 2023 14:16:50 -0500
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Subject: [PATCH] Limit error message overriding when
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---
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pyparsing/core.py | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/pyparsing/core.py b/pyparsing/core.py
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index 8233f72c..bfbb391c 100644
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--- a/pyparsing/core.py
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+++ b/pyparsing/core.py
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@@ -4547,7 +4547,8 @@ def parseImpl(self, instring, loc, doActions=True):
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try:
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return self.expr._parse(instring, loc, doActions, callPreParse=False)
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except ParseBaseException as pbe:
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- pbe.msg = self.errmsg
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+ if not isinstance(self, Forward) or self.customName is not None:
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+ pbe.msg = self.errmsg
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raise
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else:
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raise ParseException(instring, loc, "No expression defined", self)
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