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Closes #845: In code blocks, when the selected lexer fails, display line numbers nevertheless if configured.

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This commit is contained in:
Georg Brandl 2014-01-11 10:00:49 +01:00
parent 2a663ee71c
commit b29226a060
3 changed files with 16 additions and 13 deletions
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3
CHANGES
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@ -46,6 +46,9 @@ Bugs fixed
* #901: Emit a warning when using docutils' new "math" markup without a Sphinx
math extension active.
* #845: In code blocks, when the selected lexer fails, display line numbers
nevertheless if configured.
Documentation
-------------

4
doc/markup/code.rst
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@ -62,8 +62,8 @@ installed) and handled in a smart way:
* ``c``
* ... and any other lexer name that Pygments supports.
* If highlighting with the selected language fails, the block is not highlighted
in any way.
* If highlighting with the selected language fails (i.e. Pygments emits an
"Error" token), the block is not highlighted in any way.
Line numbers
^^^^^^^^^^^^

16
sphinx/highlighting.py
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@ -175,7 +175,7 @@ class PygmentsBridge(object):
if self.try_parse(source):
lexer = lexers['python']
else:
return self.unhighlighted(source)
lexer = lexers['none']
else:
lexer = lexers['python']
elif lang in ('python3', 'py3') and source.startswith('>>>'):
@ -185,7 +185,7 @@ class PygmentsBridge(object):
try:
lexer = guess_lexer(source)
except Exception:
return self.unhighlighted(source)
lexer = lexers['none']
else:
if lang in lexers:
lexer = lexers[lang]
@ -195,7 +195,7 @@ class PygmentsBridge(object):
except ClassNotFound:
if warn:
warn('Pygments lexer name %r is not known' % lang)
return self.unhighlighted(source)
lexer = lexers['none']
else:
raise
else:
@ -207,19 +207,19 @@ class PygmentsBridge(object):
source = doctest.doctestopt_re.sub('', source)
# highlight via Pygments
try:
formatter = self.get_formatter(**kwargs)
try:
hlsource = highlight(source, lexer, formatter)
except ErrorToken:
# this is most probably not the selected language,
# so let it pass unhighlighted
hlsource = highlight(source, lexers['none'], formatter)
if self.dest == 'html':
return hlsource
else:
if not isinstance(hlsource, unicode): # Py2 / Pygments < 1.6
hlsource = hlsource.decode()
return hlsource.translate(tex_hl_escape_map_new)
except ErrorToken:
# this is most probably not the selected language,
# so let it pass unhighlighted
return self.unhighlighted(source)
def get_stylesheet(self):
if not pygments: