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"""
Parsing for CSS and CSS-style values, such as transform and filter attributes.
"""
from pyparsing import (Literal, Word, CaselessLiteral,
Optional, Combine, Forward, ZeroOrMore, nums, oneOf, Group, delimitedList)
#some shared definitions from pathdata
from enthought.savage.svg.pathdata import number, maybeComma
paren = Literal("(").suppress()
cparen = Literal(")").suppress()
def Parenthised(exp):
return Group(paren + exp + cparen)
skewY = Literal("skewY") + Parenthised(number)
skewX = Literal("skewX") + Parenthised(number)
rotate = Literal("rotate") + Parenthised(
number + Optional(maybeComma + number + maybeComma + number)
)
scale = Literal("scale") + Parenthised(
number + Optional(maybeComma + number)
)
translate = Literal("translate") + Parenthised(
number + Optional(maybeComma + number)
)
matrix = Literal("matrix") + Parenthised(
#there's got to be a better way to write this
number + maybeComma +
number + maybeComma +
number + maybeComma +
number + maybeComma +
number + maybeComma +
number
)
transform = (skewY | skewX | rotate | scale | translate | matrix)
transformList = delimitedList(Group(transform), delim=maybeComma)
if __name__ == '__main__':
from tests.test_css import *
unittest.main()
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