text
stringlengths 0
828
|
|---|
result = self.text[start:end]
|
self.index = end
|
if result.endswith('\n'):
|
self.colno = 0
|
self.lineno += 1
|
else:
|
self.colno += end - start
|
return result"
|
894,"def match(self, regex, flags=0):
|
""""""
|
Matches the specified *regex* from the current character of the *scanner*
|
and returns the result. The Scanners column and line numbers are updated
|
respectively.
|
# Arguments
|
regex (str, Pattern): The regex to match.
|
flags (int): The flags to use when compiling the pattern.
|
""""""
|
if isinstance(regex, str):
|
regex = re.compile(regex, flags)
|
match = regex.match(self.text, self.index)
|
if not match:
|
return None
|
start, end = match.start(), match.end()
|
lines = self.text.count('\n', start, end)
|
self.index = end
|
if lines:
|
self.colno = end - self.text.rfind('\n', start, end) - 1
|
self.lineno += lines
|
else:
|
self.colno += end - start
|
return match"
|
895,"def getmatch(self, regex, group=0, flags=0):
|
""""""
|
The same as #Scanner.match(), but returns the captured group rather than
|
the regex match object, or None if the pattern didn't match.
|
""""""
|
match = self.match(regex, flags)
|
if match:
|
return match.group(group)
|
return None"
|
896,"def restore(self, cursor):
|
"" Moves the scanner back (or forward) to the specified cursor location. ""
|
if not isinstance(cursor, Cursor):
|
raise TypeError('expected Cursor object', type(cursor))
|
self.index, self.lineno, self.colno = cursor"
|
897,"def update(self):
|
""""""
|
Updates the #rules_map dictionary and #skippable_rules list based on the
|
#rules list. Must be called after #rules or any of its items have been
|
modified. The same rule name may appear multiple times.
|
# Raises
|
TypeError: if an item in the `rules` list is not a rule.
|
""""""
|
self.rules_map = {}
|
self.skippable_rules = []
|
for rule in self.rules:
|
if not isinstance(rule, Rule):
|
raise TypeError('item must be Rule instance', type(rule))
|
self.rules_map.setdefault(rule.name, []).append(rule)
|
if rule.skip:
|
self.skippable_rules.append(rule)"
|
898,"def expect(self, *names):
|
""""""
|
Checks if the current #token#s type name matches with any of the specified
|
*names*. This is useful for asserting multiple valid token types at a
|
specific point in the parsing process.
|
# Arguments
|
names (str): One or more token type names. If zero are passed,
|
nothing happens.
|
# Raises
|
UnexpectedTokenError: If the current #token#s type name does not match
|
with any of the specified *names*.
|
""""""
|
if not names:
|
return
|
if not self.token or self.token.type not in names:
|
raise UnexpectedTokenError(names, self.token)"
|
899,"def accept(self, *names, **kwargs):
|
""""""
|
Extracts a token of one of the specified rule names and doesn't error if
|
unsuccessful. Skippable tokens might still be skipped by this method.
|
# Arguments
|
names (str): One or more token names that are accepted.
|
kwargs: Additional keyword arguments for #next().
|
# Raises
|
ValueError: if a rule with the specified name doesn't exist.
|
""""""
|
return self.next(*names, as_accept=True, **kwargs)"
|
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