def __str__(self):
info = self.buf.line_info(self.pos)
template = "{}({}:{}) {} :\n{}\n{}^\n{}"
text = info.text.rstrip()
leading = re.sub(r'[^\t]', ' ', text)[:info.col]
text = text.expandtabs()
leading = leading.expandtabs()
return template.format(info.filename, info.line + 1, info.col + 1,
self.message.rstrip(), text, leading,
'\n'.join(reversed(self.stack)))
def __str__(self):
info = self.buf.line_info(self.pos)
template = "{}({}:{}) {} :\n{}\n{}^\n{}"
text = info.text.rstrip()
leading = re.sub(r'[^\t]', ' ', text)[:info.col]
text = text.expandtabs()
leading = leading.expandtabs()
return template.format(info.filename,
info.line + 1, info.col + 1,
self.message.rstrip(),
text,
leading,
'\n'.join(reversed(self.stack))
)
def _find_walker(self, node, prefix='walk_'):
def pythonize_match(m):
return '_' + m.group().lower()
classid = id(node.__class__)
if classid in self._walker_cache:
return self._walker_cache[classid]
classes = [node.__class__]
while classes:
cls = classes.pop(0)
cammelcase_name = cls.__name__
walker = getattr(self, prefix + cammelcase_name, None)
if callable(walker):
break
# walk__pythonic_name with double underscore after walk
pythonic_name = re.sub('[A-Z]+', pythonize_match, cls.__name__)
if pythonic_name != cammelcase_name:
walker = getattr(self, prefix + pythonic_name, None)
if callable(walker):
break
# walk_pythonic_name with single underscore after walk
# pythonic_name = pythonic_name.lstrip('_')
# if pythonic_name != cammelcase_name:
# walker = getattr(self, prefix + pythonic_name, None)
# if callable(walker):
# break
for b in cls.__bases__:
if b not in classes:
classes.append(b)
else:
walker = getattr(self, '_walk_default', None)
if walker is None:
walker = getattr(self, 'walk_default',
None) # backwars compatibility
if not callable(walker):
walker = None
self._walker_cache[classid] = walker
return walker
def _find_walker(self, node, prefix='walk_'):
def pythonize_match(m):
return '_' + m.group().lower()
classid = id(node.__class__)
if classid in self._walker_cache:
return self._walker_cache[classid]
classes = [node.__class__]
while classes:
cls = classes.pop(0)
cammelcase_name = cls.__name__
walker = getattr(self, prefix + cammelcase_name, None)
if callable(walker):
break
# walk__pythonic_name with double underscore after walk
pythonic_name = re.sub('[A-Z]+', pythonize_match, cls.__name__)
if pythonic_name != cammelcase_name:
walker = getattr(self, prefix + pythonic_name, None)
if callable(walker):
break
# walk_pythonic_name with single underscore after walk
# pythonic_name = pythonic_name.lstrip('_')
# if pythonic_name != cammelcase_name:
# walker = getattr(self, prefix + pythonic_name, None)
# if callable(walker):
# break
for b in cls.__bases__:
if b not in classes:
classes.append(b)
else:
walker = getattr(self, '_walk_default', None)
if walker is None:
walker = getattr(self, 'walk_default', None) # backwars compatibility
if not callable(walker):
walker = None
self._walker_cache[classid] = walker
return walker