JezK
Edit File: whitespace.py
from __future__ import absolute_import, division, unicode_literals import re from . import base from ..constants import rcdataElements, spaceCharacters spaceCharacters = "".join(spaceCharacters) SPACES_REGEX = re.compile("[%s]+" % spaceCharacters) class Filter(base.Filter): """Collapses whitespace except in pre, textarea, and script elements""" spacePreserveElements = frozenset(["pre", "textarea"] + list(rcdataElements)) def __iter__(self): preserve = 0 for token in base.Filter.__iter__(self): type = token["type"] if type == "StartTag" \ and (preserve or token["name"] in self.spacePreserveElements): preserve += 1 elif type == "EndTag" and preserve: preserve -= 1 elif not preserve and type == "SpaceCharacters" and token["data"]: # Test on token["data"] above to not introduce spaces where there were not token["data"] = " " elif not preserve and type == "Characters": token["data"] = collapse_spaces(token["data"]) yield token def collapse_spaces(text): return SPACES_REGEX.sub(' ', text)