forked from jaraco/cssutils
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathcss2productions.py
More file actions
131 lines (121 loc) · 5.89 KB
/
css2productions.py
File metadata and controls
131 lines (121 loc) · 5.89 KB
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
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
"""productions for CSS 2.1
CSS2_1_MACROS and CSS2_1_PRODUCTIONS are from both
http://www.w3.org/TR/CSS21/grammar.html and
http://www.w3.org/TR/css3-syntax/#grammar0
"""
__all__ = ['CSSProductions', 'MACROS', 'PRODUCTIONS']
# option case-insensitive
MACROS = {
'h': r'[0-9a-f]',
# 'nonascii': r'[\200-\377]',
'nonascii': r'[^\0-\177]', # CSS3
'unicode': r'\\{h}{1,6}(\r\n|[ \t\r\n\f])?',
'escape': r'{unicode}|\\[^\r\n\f0-9a-f]',
'nmstart': r'[_a-zA-Z]|{nonascii}|{escape}',
'nmchar': r'[_a-zA-Z0-9-]|{nonascii}|{escape}',
'string1': r'\"([^\n\r\f\\"]|\\{nl}|{escape})*\"',
'string2': r"\'([^\n\r\f\\']|\\{nl}|{escape})*\'",
'invalid1': r'\"([^\n\r\f\\"]|\\{nl}|{escape})*',
'invalid2': r"\'([^\n\r\f\\']|\\{nl}|{escape})*",
'comment': r'\/\*[^*]*\*+([^/*][^*]*\*+)*\/',
# CSS list 080725 19:43
# \/\*([^*\\]|{escape})*\*+(([^/*\\]|{escape})[^*]*\*+)*\/
'ident': r'[-]?{nmstart}{nmchar}*',
'name': r'{nmchar}+',
# CHANGED TO SPEC: added "-?"
'num': r'-?[0-9]*\.[0-9]+|[0-9]+',
'string': r'{string1}|{string2}',
'invalid': r'{invalid1}|{invalid2}',
'url': r'([!#$%&*-~]|{nonascii}|{escape})*',
's': r'[ \t\r\n\f]+',
'w': r'{s}?',
'nl': r'\n|\r\n|\r|\f',
'range': r'\?{1,6}|{h}(\?{0,5}|{h}(\?{0,4}|{h}(\?{0,3}|{h}(\?{0,2}|{h}(\??|{h})))))',
'A': r'a|\\0{0,4}(41|61)(\r\n|[ \t\r\n\f])?',
'C': r'c|\\0{0,4}(43|63)(\r\n|[ \t\r\n\f])?',
'D': r'd|\\0{0,4}(44|64)(\r\n|[ \t\r\n\f])?',
'E': r'e|\\0{0,4}(45|65)(\r\n|[ \t\r\n\f])?',
'F': r'f|\\0{0,4}(46|66)(\r\n|[ \t\r\n\f])?',
'G': r'g|\\0{0,4}(47|67)(\r\n|[ \t\r\n\f])?|\\g',
'H': r'h|\\0{0,4}(48|68)(\r\n|[ \t\r\n\f])?|\\h',
'I': r'i|\\0{0,4}(49|69)(\r\n|[ \t\r\n\f])?|\\i',
'K': r'k|\\0{0,4}(4b|6b)(\r\n|[ \t\r\n\f])?|\\k',
'M': r'm|\\0{0,4}(4d|6d)(\r\n|[ \t\r\n\f])?|\\m',
'N': r'n|\\0{0,4}(4e|6e)(\r\n|[ \t\r\n\f])?|\\n',
'O': r'o|\\0{0,4}(51|71)(\r\n|[ \t\r\n\f])?|\\o',
'P': r'p|\\0{0,4}(50|70)(\r\n|[ \t\r\n\f])?|\\p',
'R': r'r|\\0{0,4}(52|72)(\r\n|[ \t\r\n\f])?|\\r',
'S': r's|\\0{0,4}(53|73)(\r\n|[ \t\r\n\f])?|\\s',
'T': r't|\\0{0,4}(54|74)(\r\n|[ \t\r\n\f])?|\\t',
'X': r'x|\\0{0,4}(58|78)(\r\n|[ \t\r\n\f])?|\\x',
'Z': r'z|\\0{0,4}(5a|7a)(\r\n|[ \t\r\n\f])?|\\z',
}
PRODUCTIONS = [
('URI', r'url\({w}{string}{w}\)'), # "url("{w}{string}{w}")" {return URI;}
('URI', r'url\({w}{url}{w}\)'), # "url("{w}{url}{w}")" {return URI;}
('FUNCTION', r'{ident}\('), # {ident}"(" {return FUNCTION;}
('IMPORT_SYM', r'@{I}{M}{P}{O}{R}{T}'), # "@import" {return IMPORT_SYM;}
('PAGE_SYM', r'@{P}{A}{G}{E}'), # "@page" {return PAGE_SYM;}
('MEDIA_SYM', r'@{M}{E}{D}{I}{A}'), # "@media" {return MEDIA_SYM;}
(
'FONT_FACE_SYM',
r'@{F}{O}{N}{T}\-{F}{A}{C}{E}',
), # "@font-face" {return FONT_FACE_SYM;}
# CHANGED TO SPEC: only @charset
('CHARSET_SYM', r'@charset '), # "@charset " {return CHARSET_SYM;}
(
'NAMESPACE_SYM',
r'@{N}{A}{M}{E}{S}{P}{A}{C}{E}',
), # "@namespace" {return NAMESPACE_SYM;}
# CHANGED TO SPEC: ATKEYWORD
('ATKEYWORD', r'\@{ident}'),
('IDENT', r'{ident}'), # {ident} {return IDENT;}
('STRING', r'{string}'), # {string} {return STRING;}
('INVALID', r'{invalid}'), # {return INVALID; /* unclosed string */}
('HASH', r'\#{name}'), # "#"{name} {return HASH;}
('PERCENTAGE', r'{num}%'), # {num}% {return PERCENTAGE;}
('LENGTH', r'{num}{E}{M}'), # {num}em {return EMS;}
('LENGTH', r'{num}{E}{X}'), # {num}ex {return EXS;}
('LENGTH', r'{num}{P}{X}'), # {num}px {return LENGTH;}
('LENGTH', r'{num}{C}{M}'), # {num}cm {return LENGTH;}
('LENGTH', r'{num}{M}{M}'), # {num}mm {return LENGTH;}
('LENGTH', r'{num}{I}{N}'), # {num}in {return LENGTH;}
('LENGTH', r'{num}{P}{T}'), # {num}pt {return LENGTH;}
('LENGTH', r'{num}{P}{C}'), # {num}pc {return LENGTH;}
('ANGLE', r'{num}{D}{E}{G}'), # {num}deg {return ANGLE;}
('ANGLE', r'{num}{R}{A}{D}'), # {num}rad {return ANGLE;}
('ANGLE', r'{num}{G}{R}{A}{D}'), # {num}grad {return ANGLE;}
('TIME', r'{num}{M}{S}'), # {num}ms {return TIME;}
('TIME', r'{num}{S}'), # {num}s {return TIME;}
('FREQ', r'{num}{H}{Z}'), # {num}Hz {return FREQ;}
('FREQ', r'{num}{K}{H}{Z}'), # {num}kHz {return FREQ;}
('DIMEN', r'{num}{ident}'), # {num}{ident} {return DIMEN;}
('NUMBER', r'{num}'), # {num} {return NUMBER;}
# ('UNICODERANGE', r'U\+{range}'), #U\+{range} {return UNICODERANGE;}
# ('UNICODERANGE', r'U\+{h}{1,6}-{h}{1,6}'), #U\+{h}{1,6}-{h}{1,6} {return UNICODERANGE;} # noqa
# --- CSS3 ---
('UNICODE-RANGE', r'[0-9A-F?]{1,6}(\-[0-9A-F]{1,6})?'),
('CDO', r'\<\!\-\-'), # "<!--" {return CDO;}
('CDC', r'\-\-\>'), # "-->" {return CDC;}
('S', r'{s}'), # {return S;}
# \/\*[^*]*\*+([^/*][^*]*\*+)*\/ /* ignore comments */
# {s}+\/\*[^*]*\*+([^/*][^*]*\*+)*\/ {unput(' '); /*replace by space*/}
('INCLUDES', r'\~\='), # "~=" {return INCLUDES;}
('DASHMATCH', r'\|\='), # "|=" {return DASHMATCH;}
('LBRACE', r'\{'), # {w}"{" {return LBRACE;}
('PLUS', r'\+'), # {w}"+" {return PLUS;}
('GREATER', r'\>'), # {w}">" {return GREATER;}
('COMMA', r'\,'), # {w}"," {return COMMA;}
(
'IMPORTANT_SYM',
r'\!({w}|{comment})*{I}{M}{P}{O}{R}{T}{A}{N}{T}',
), # "!{w}important" {return IMPORTANT_SYM;}
('COMMENT', r'\/\*[^*]*\*+([^/][^*]*\*+)*\/'), # /* ignore comments */
('CLASS', r'\.'), # . {return *yytext;}
# --- CSS3! ---
('CHAR', r'[^"\']'),
]
class CSSProductions:
pass
for t in PRODUCTIONS:
setattr(CSSProductions, t[0].replace('-', '_'), t[0])