Remarks: Not all the following lexical units are supported (or will be supported) by CSS.
All examples are CSS2 compliant. version: $Revision$author: Philippe Le Hegaret
attr(...)
cm
counters
counter
deg
em
ex
grad
Hz
inherit
in
kHz
mm
ms
pc
px
pt
rad
rect
s
uri(...)
LexicalUnit
null
rgb(0, 0, 0)
#000
(a)
(a + b)
(normal/none)
if this lexical unit represents a float, the dimension is an empty string.
If the type of LexicalUnit is one of SAC_DEGREE, SAC_GRADIAN, SAC_RADIAN, SAC_MILLISECOND, SAC_SECOND, SAC_HERTZ or SAC_KILOHERTZ, the value can never be negative.
SAC_FUNCTION
If the type is SAC_URI, the return value doesn't contain uri(....) or quotes.
SAC_URI
uri(....)
If the type is SAC_ATTR, the return value doesn't contain attr(....). See Also: LexicalUnit.SAC_URISee Also: LexicalUnit.SAC_ATTRSee Also: LexicalUnit.SAC_IDENTSee Also: LexicalUnit.SAC_STRING_VALUESee Also: LexicalUnit.SAC_UNICODERANGESee Also: @@TO BE DEFINED
SAC_ATTR
attr(....)