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Dont crash if pygments raises an exception

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This commit is contained in:
Kovid Goyal 2014-11-21 12:23:25 +05:30
parent 022c1ed445
commit 01f9a4a330
1 changed files with 11 additions and 4 deletions
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7
src/calibre/gui2/tweak_book/editor/syntax/pygments_highlighter.py
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@ -75,11 +75,18 @@ def create_lexer(base_class):
formats = []
if i > 0:
# This should never happen
state.pygments_stack = None
return [(len(text) - i, formats_map(Error))]
try:
# Pygments lexers expect newlines at the end of the line
for pos, token, txt in self.get_tokens_unprocessed(text + '\n', statestack):
if txt not in ('\n', ''):
formats.append((len(txt), formats_map(token)))
except Exception:
import traceback
traceback.print_exc()
state.pygments_stack = None
return [(len(text) - i, formats_map(Error))]
state.pygments_stack = statestack
return formats