Mercurial > repos > shellac > sam_consensus_v3
view env/lib/python3.9/site-packages/bleach/_vendor/html5lib/filters/whitespace.py @ 0:4f3585e2f14b draft default tip
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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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)