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b8c5782765
BeautifulSoup needs lxml or html5, have included html5lib. Also latest BeautifulSoup 4.1.3
89 lines
3.9 KiB
Python
89 lines
3.9 KiB
Python
from gettext import gettext
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_ = gettext
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import _base
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from html5lib.constants import cdataElements, rcdataElements, voidElements
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from html5lib.constants import spaceCharacters
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spaceCharacters = u"".join(spaceCharacters)
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class LintError(Exception): pass
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class Filter(_base.Filter):
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def __iter__(self):
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open_elements = []
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contentModelFlag = "PCDATA"
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for token in _base.Filter.__iter__(self):
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type = token["type"]
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if type in ("StartTag", "EmptyTag"):
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name = token["name"]
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if contentModelFlag != "PCDATA":
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raise LintError(_("StartTag not in PCDATA content model flag: %s") % name)
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if not isinstance(name, unicode):
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raise LintError(_(u"Tag name is not a string: %r") % name)
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if not name:
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raise LintError(_(u"Empty tag name"))
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if type == "StartTag" and name in voidElements:
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raise LintError(_(u"Void element reported as StartTag token: %s") % name)
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elif type == "EmptyTag" and name not in voidElements:
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raise LintError(_(u"Non-void element reported as EmptyTag token: %s") % token["name"])
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if type == "StartTag":
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open_elements.append(name)
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for name, value in token["data"]:
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if not isinstance(name, unicode):
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raise LintError(_("Attribute name is not a string: %r") % name)
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if not name:
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raise LintError(_(u"Empty attribute name"))
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if not isinstance(value, unicode):
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raise LintError(_("Attribute value is not a string: %r") % value)
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if name in cdataElements:
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contentModelFlag = "CDATA"
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elif name in rcdataElements:
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contentModelFlag = "RCDATA"
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elif name == "plaintext":
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contentModelFlag = "PLAINTEXT"
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elif type == "EndTag":
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name = token["name"]
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if not isinstance(name, unicode):
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raise LintError(_(u"Tag name is not a string: %r") % name)
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if not name:
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raise LintError(_(u"Empty tag name"))
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if name in voidElements:
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raise LintError(_(u"Void element reported as EndTag token: %s") % name)
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start_name = open_elements.pop()
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if start_name != name:
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raise LintError(_(u"EndTag (%s) does not match StartTag (%s)") % (name, start_name))
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contentModelFlag = "PCDATA"
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elif type == "Comment":
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if contentModelFlag != "PCDATA":
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raise LintError(_("Comment not in PCDATA content model flag"))
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elif type in ("Characters", "SpaceCharacters"):
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data = token["data"]
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if not isinstance(data, unicode):
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raise LintError(_("Attribute name is not a string: %r") % data)
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if not data:
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raise LintError(_(u"%s token with empty data") % type)
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if type == "SpaceCharacters":
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data = data.strip(spaceCharacters)
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if data:
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raise LintError(_(u"Non-space character(s) found in SpaceCharacters token: ") % data)
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elif type == "Doctype":
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name = token["name"]
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if contentModelFlag != "PCDATA":
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raise LintError(_("Doctype not in PCDATA content model flag: %s") % name)
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if not isinstance(name, unicode):
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raise LintError(_(u"Tag name is not a string: %r") % name)
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# XXX: what to do with token["data"] ?
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elif type in ("ParseError", "SerializeError"):
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pass
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else:
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raise LintError(_(u"Unknown token type: %s") % type)
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yield token
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