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`CSS Variables `_
CSSVariablesRule N )cssrule)CSSVariablesDeclarationc e Zd ZdZ d fd Zd Zd Zd Z fdZ e eed Z
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The CSSVariablesRule interface represents a @variables rule within a CSS
style sheet. The @variables rule is used to specify variables.
cssutils uses a :class:`~cssutils.css.CSSVariablesDeclaration` to
represent the variables.
Format::
variables
VARIABLES_SYM S* medium [ COMMA S* medium ]* LBRACE S*
variableset* '}' S*
;
for variableset see :class:`cssutils.css.CSSVariablesDeclaration`
**Media are not implemented. Reason is that cssutils is using CSS
variables in a kind of preprocessing and therefor no media information
is available at this stage. For now do not use media!**
Example::
@variables {
CorporateLogoBGColor: #fe8d12;
}
div.logoContainer {
background-color: var(CorporateLogoBGColor);
}
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If readonly allows setting of properties in constructor only.
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super__init__
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:exceptions:
- :exc:`~xml.dom.SyntaxErr`:
Raised if the specified CSS string value has a syntax error and
is unparsable.
- :exc:`~xml.dom.InvalidModificationErr`:
Raised if the specified CSS string value represents a different
type of rule than the current one.
- :exc:`~xml.dom.HierarchyRequestErr`:
Raised if the rule cannot be inserted at this point in the
style sheet.
- :exc:`~xml.dom.NoModificationAllowedErr`:
Raised if the rule is readonly.
Format::
variables
: VARIABLES_SYM S* medium [ COMMA S* medium ]* LBRACE S*
variableset* '}' S*
;
variableset
: LBRACE S* vardeclaration [ ';' S* vardeclaration ]* '}' S*
;
Nz/CSSVariablesRule: No CSSVariablesRule found: %s)errorr T)blockstartonly separateEnd{Fz>CSSVariablesRule: No start { of variable declaration found: %r
wellformed:)expectedseq tokenizer productions) blockendonlyr, }EOFz>CSSVariablesRule: No "}" after variables declaration found: %rz)CSSVariablesRule: Trailing content found.)token)r
_setCssText
_tokenize2
_nexttoken_type_prods
VARIABLES_SYM_logr* _valuestrxmldomInvalidModificationErrr _tokensupto2 _tokenvalue_tempSeq_parseappendr _setSeqr )r r r2 attoken newVariablesok beforetokensbracenewnewseqbeforewellformedr0 variablestokensbraceorEOFtokenvaltype_ nonetokenr s r r8 z CSSVariablesRule._setCssText[ s9 4 G$OOG, //)T2 ::g $++";"; ; IIOOA..)*gg44
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