/usr/lib/python2.7/dist-packages/cssutils/css/cssnamespacerule.py is in python-cssutils 1.0.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 | """CSSNamespaceRule currently implements http://dev.w3.org/csswg/css3-namespace/
"""
__all__ = ['CSSNamespaceRule']
__docformat__ = 'restructuredtext'
__version__ = '$Id$'
import cssrule
import cssutils
import xml.dom
class CSSNamespaceRule(cssrule.CSSRule):
"""
Represents an @namespace rule within a CSS style sheet.
The @namespace at-rule declares a namespace prefix and associates
it with a given namespace (a string). This namespace prefix can then be
used in namespace-qualified names such as those described in the
Selectors Module [SELECT] or the Values and Units module [CSS3VAL].
Dealing with these rules directly is not needed anymore, easier is
the use of :attr:`cssutils.css.CSSStyleSheet.namespaces`.
Format::
namespace
: NAMESPACE_SYM S* [namespace_prefix S*]? [STRING|URI] S* ';' S*
;
namespace_prefix
: IDENT
;
"""
def __init__(self, namespaceURI=None, prefix=None, cssText=None,
parentRule=None, parentStyleSheet=None, readonly=False):
"""
:Parameters:
namespaceURI
The namespace URI (a simple string!) which is bound to the
given prefix. If no prefix is set
(``CSSNamespaceRule.prefix==''``) the namespace defined by
namespaceURI is set as the default namespace
prefix
The prefix used in the stylesheet for the given
``CSSNamespaceRule.uri``.
cssText
if no namespaceURI is given cssText must be given to set
a namespaceURI as this is readonly later on
parentStyleSheet
sheet where this rule belongs to
Do not use as positional but as keyword parameters only!
If readonly allows setting of properties in constructor only
format namespace::
namespace
: NAMESPACE_SYM S* [namespace_prefix S*]? [STRING|URI] S* ';' S*
;
namespace_prefix
: IDENT
;
"""
super(CSSNamespaceRule, self).__init__(parentRule=parentRule,
parentStyleSheet=parentStyleSheet)
self._atkeyword = u'@namespace'
self._prefix = u''
self._namespaceURI = None
if namespaceURI:
self.namespaceURI = namespaceURI
self.prefix = prefix
tempseq = self._tempSeq()
tempseq.append(self.prefix, 'prefix')
tempseq.append(self.namespaceURI, 'namespaceURI')
self._setSeq(tempseq)
elif cssText is not None:
self.cssText = cssText
if parentStyleSheet:
self._parentStyleSheet = parentStyleSheet
self._readonly = readonly
def __repr__(self):
return u"cssutils.css.%s(namespaceURI=%r, prefix=%r)" % (
self.__class__.__name__,
self.namespaceURI,
self.prefix)
def __str__(self):
return u"<cssutils.css.%s object namespaceURI=%r prefix=%r at 0x%x>" % (
self.__class__.__name__,
self.namespaceURI,
self.prefix,
id(self))
def _getCssText(self):
"""Return serialized property cssText"""
return cssutils.ser.do_CSSNamespaceRule(self)
def _setCssText(self, cssText):
"""
:param cssText: initial value for this rules cssText which is parsed
:exceptions:
- :exc:`~xml.dom.HierarchyRequestErr`:
Raised if the rule cannot be inserted at this point in the
style sheet.
- :exc:`~xml.dom.InvalidModificationErr`:
Raised if the specified CSS string value represents a different
type of rule than the current one.
- :exc:`~xml.dom.NoModificationAllowedErr`:
Raised if the rule is readonly.
- :exc:`~xml.dom.SyntaxErr`:
Raised if the specified CSS string value has a syntax error and
is unparsable.
"""
super(CSSNamespaceRule, self)._setCssText(cssText)
tokenizer = self._tokenize2(cssText)
attoken = self._nexttoken(tokenizer, None)
if self._type(attoken) != self._prods.NAMESPACE_SYM:
self._log.error(u'CSSNamespaceRule: No CSSNamespaceRule found: %s' %
self._valuestr(cssText),
error=xml.dom.InvalidModificationErr)
else:
# for closures: must be a mutable
new = {'keyword': self._tokenvalue(attoken),
'prefix': u'',
'uri': None,
'wellformed': True
}
def _ident(expected, seq, token, tokenizer=None):
# the namespace prefix, optional
if 'prefix or uri' == expected:
new['prefix'] = self._tokenvalue(token)
seq.append(new['prefix'], 'prefix')
return 'uri'
else:
new['wellformed'] = False
self._log.error(
u'CSSNamespaceRule: Unexpected ident.', token)
return expected
def _string(expected, seq, token, tokenizer=None):
# the namespace URI as a STRING
if expected.endswith('uri'):
new['uri'] = self._stringtokenvalue(token)
seq.append(new['uri'], 'namespaceURI')
return ';'
else:
new['wellformed'] = False
self._log.error(
u'CSSNamespaceRule: Unexpected string.', token)
return expected
def _uri(expected, seq, token, tokenizer=None):
# the namespace URI as URI which is DEPRECATED
if expected.endswith('uri'):
uri = self._uritokenvalue(token)
new['uri'] = uri
seq.append(new['uri'], 'namespaceURI')
return ';'
else:
new['wellformed'] = False
self._log.error(
u'CSSNamespaceRule: Unexpected URI.', token)
return expected
def _char(expected, seq, token, tokenizer=None):
# final ;
val = self._tokenvalue(token)
if ';' == expected and u';' == val:
return 'EOF'
else:
new['wellformed'] = False
self._log.error(
u'CSSNamespaceRule: Unexpected char.', token)
return expected
# "NAMESPACE_SYM S* [namespace_prefix S*]? [STRING|URI] S* ';' S*"
newseq = self._tempSeq()
wellformed, expected = self._parse(expected='prefix or uri',
seq=newseq, tokenizer=tokenizer,
productions={'IDENT': _ident,
'STRING': _string,
'URI': _uri,
'CHAR': _char},
new=new)
# wellformed set by parse
wellformed = wellformed and new['wellformed']
# post conditions
if new['uri'] is None:
wellformed = False
self._log.error(u'CSSNamespaceRule: No namespace URI found: %s'
% self._valuestr(cssText))
if expected != 'EOF':
wellformed = False
self._log.error(u'CSSNamespaceRule: No ";" found: %s' %
self._valuestr(cssText))
# set all
if wellformed:
self.atkeyword = new['keyword']
self._prefix = new['prefix']
self.namespaceURI = new['uri']
self._setSeq(newseq)
cssText = property(fget=_getCssText, fset=_setCssText,
doc=u"(DOM) The parsable textual representation of this "
u"rule.")
def _setNamespaceURI(self, namespaceURI):
"""
:param namespaceURI: the initial value for this rules namespaceURI
:exceptions:
- :exc:`~xml.dom.NoModificationAllowedErr`:
(CSSRule) Raised if this rule is readonly or a namespaceURI is
already set in this rule.
"""
self._checkReadonly()
if not self._namespaceURI:
# initial setting
self._namespaceURI = namespaceURI
tempseq = self._tempSeq()
tempseq.append(namespaceURI, 'namespaceURI')
self._setSeq(tempseq) # makes seq readonly!
elif self._namespaceURI != namespaceURI:
self._log.error(u'CSSNamespaceRule: namespaceURI is readonly.',
error=xml.dom.NoModificationAllowedErr)
namespaceURI = property(lambda self: self._namespaceURI, _setNamespaceURI,
doc="URI (handled as simple string) of the defined namespace.")
def _replaceNamespaceURI(self, namespaceURI):
"""Used during parse of new sheet only!
:param namespaceURI: the new value for this rules namespaceURI
"""
self._namespaceURI = namespaceURI
for i, x in enumerate(self._seq):
if 'namespaceURI' == x.type:
self._seq._readonly = False
self._seq.replace(i, namespaceURI, 'namespaceURI')
self._seq._readonly = True
break
def _setPrefix(self, prefix=None):
"""
:param prefix: the new prefix
:exceptions:
- :exc:`~xml.dom.SyntaxErr`:
Raised if the specified CSS string value has a syntax error and
is unparsable.
- :exc:`~xml.dom.NoModificationAllowedErr`:
Raised if this rule is readonly.
"""
self._checkReadonly()
if not prefix:
prefix = u''
else:
tokenizer = self._tokenize2(prefix)
prefixtoken = self._nexttoken(tokenizer, None)
if not prefixtoken or self._type(prefixtoken) != self._prods.IDENT:
self._log.error(u'CSSNamespaceRule: No valid prefix "%s".' %
self._valuestr(prefix),
error=xml.dom.SyntaxErr)
return
else:
prefix = self._tokenvalue(prefixtoken)
# update seq
for i, x in enumerate(self._seq):
if x == self._prefix:
self._seq[i] = (prefix, 'prefix', None, None)
break
else:
# put prefix at the beginning!
self._seq[0] = (prefix, 'prefix', None, None)
# set new prefix
self._prefix = prefix
prefix = property(lambda self: self._prefix, _setPrefix,
doc=u"Prefix used for the defined namespace.")
type = property(lambda self: self.NAMESPACE_RULE,
doc=u"The type of this rule, as defined by a CSSRule "
u"type constant.")
wellformed = property(lambda self: self.namespaceURI is not None)
|