Merge pull request #6502 from tk0miya/6497_custom_lexers_fails_highli…

…ghting Fix #6497: custom lexers fails highlighting when syntax error
sphinx-doc · Jun 18, 2019 · be08561 · be08561
2 parents 5b307fc + 2119a65
commit be08561
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diff --git a/CHANGES b/CHANGES
@@ -16,6 +16,8 @@ Features added
 Bugs fixed
 ----------
 
+* #6497: custom lexers fails highlighting when syntax error
+
 Testing
 --------
 

diff --git a/sphinx/highlighting.py b/sphinx/highlighting.py
@@ -139,7 +139,8 @@ def get_lexer(self, source, lang, opts=None, force=False, location=None):
                 lexer = lexers['none']
 
         if lang in lexers:
-            lexer = lexers[lang]
+            # just return custom lexers here (without installing raiseonerror filter)
+            return lexers[lang]
         elif lang in lexer_classes:
             lexer = lexer_classes[lang](**opts)
         else: