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
|
"""
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 enable.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()
|
