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