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
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
---
source: crates/biome_css_parser/tests/spec_test.rs
expression: snapshot
---
## Input
```css
div {
prod: fn(100px);
prod: --fn(100px);
prod: --fn--fn(100px);
}
```
## AST
```
CssRoot {
bom_token: missing (optional),
rules: CssRuleList [
CssQualifiedRule {
prelude: CssSelectorList [
CssCompoundSelector {
nesting_selectors: CssNestedSelectorList [],
simple_selector: CssTypeSelector {
namespace: missing (optional),
ident: CssIdentifier {
value_token: IDENT@0..4 "div" [] [Whitespace(" ")],
},
},
sub_selectors: CssSubSelectorList [],
},
],
block: CssDeclarationOrRuleBlock {
l_curly_token: L_CURLY@4..5 "{" [] [],
items: CssDeclarationOrRuleList [
CssDeclarationWithSemicolon {
declaration: CssDeclaration {
property: CssGenericProperty {
name: CssIdentifier {
value_token: IDENT@5..14 "prod" [Newline("\n"), Whitespace(" ")] [],
},
colon_token: COLON@14..16 ":" [] [Whitespace(" ")],
value: CssGenericComponentValueList [
CssFunction {
name: CssIdentifier {
value_token: IDENT@16..18 "fn" [] [],
},
l_paren_token: L_PAREN@18..19 "(" [] [],
items: CssParameterList [
CssParameter {
any_css_expression: CssListOfComponentValuesExpression {
css_component_value_list: CssComponentValueList [
CssRegularDimension {
value_token: CSS_NUMBER_LITERAL@19..22 "100" [] [],
unit_token: IDENT@22..24 "px" [] [],
},
],
},
},
],
r_paren_token: R_PAREN@24..25 ")" [] [],
},
],
},
important: missing (optional),
},
semicolon_token: SEMICOLON@25..26 ";" [] [],
},
CssDeclarationWithSemicolon {
declaration: CssDeclaration {
property: CssGenericProperty {
name: CssIdentifier {
value_token: IDENT@26..35 "prod" [Newline("\n"), Whitespace(" ")] [],
},
colon_token: COLON@35..37 ":" [] [Whitespace(" ")],
value: CssGenericComponentValueList [
CssFunction {
name: CssIdentifier {
value_token: IDENT@37..41 "--fn" [] [],
},
l_paren_token: L_PAREN@41..42 "(" [] [],
items: CssParameterList [
CssParameter {
any_css_expression: CssListOfComponentValuesExpression {
css_component_value_list: CssComponentValueList [
CssRegularDimension {
value_token: CSS_NUMBER_LITERAL@42..45 "100" [] [],
unit_token: IDENT@45..47 "px" [] [],
},
],
},
},
],
r_paren_token: R_PAREN@47..48 ")" [] [],
},
],
},
important: missing (optional),
},
semicolon_token: SEMICOLON@48..49 ";" [] [],
},
CssDeclarationWithSemicolon {
declaration: CssDeclaration {
property: CssGenericProperty {
name: CssIdentifier {
value_token: IDENT@49..58 "prod" [Newline("\n"), Whitespace(" ")] [],
},
colon_token: COLON@58..60 ":" [] [Whitespace(" ")],
value: CssGenericComponentValueList [
CssFunction {
name: CssIdentifier {
value_token: IDENT@60..68 "--fn--fn" [] [],
},
l_paren_token: L_PAREN@68..69 "(" [] [],
items: CssParameterList [
CssParameter {
any_css_expression: CssListOfComponentValuesExpression {
css_component_value_list: CssComponentValueList [
CssRegularDimension {
value_token: CSS_NUMBER_LITERAL@69..72 "100" [] [],
unit_token: IDENT@72..74 "px" [] [],
},
],
},
},
],
r_paren_token: R_PAREN@74..75 ")" [] [],
},
],
},
important: missing (optional),
},
semicolon_token: SEMICOLON@75..76 ";" [] [],
},
],
r_curly_token: R_CURLY@76..78 "}" [Newline("\n")] [],
},
},
],
eof_token: EOF@78..78 "" [] [],
}
```
## CST
```
0: CSS_ROOT@0..78
0: (empty)
1: CSS_RULE_LIST@0..78
0: CSS_QUALIFIED_RULE@0..78
0: CSS_SELECTOR_LIST@0..4
0: CSS_COMPOUND_SELECTOR@0..4
0: CSS_NESTED_SELECTOR_LIST@0..0
1: CSS_TYPE_SELECTOR@0..4
0: (empty)
1: CSS_IDENTIFIER@0..4
0: IDENT@0..4 "div" [] [Whitespace(" ")]
2: CSS_SUB_SELECTOR_LIST@4..4
1: CSS_DECLARATION_OR_RULE_BLOCK@4..78
0: L_CURLY@4..5 "{" [] []
1: CSS_DECLARATION_OR_RULE_LIST@5..76
0: CSS_DECLARATION_WITH_SEMICOLON@5..26
0: CSS_DECLARATION@5..25
0: CSS_GENERIC_PROPERTY@5..25
0: CSS_IDENTIFIER@5..14
0: IDENT@5..14 "prod" [Newline("\n"), Whitespace(" ")] []
1: COLON@14..16 ":" [] [Whitespace(" ")]
2: CSS_GENERIC_COMPONENT_VALUE_LIST@16..25
0: CSS_FUNCTION@16..25
0: CSS_IDENTIFIER@16..18
0: IDENT@16..18 "fn" [] []
1: L_PAREN@18..19 "(" [] []
2: CSS_PARAMETER_LIST@19..24
0: CSS_PARAMETER@19..24
0: CSS_LIST_OF_COMPONENT_VALUES_EXPRESSION@19..24
0: CSS_COMPONENT_VALUE_LIST@19..24
0: CSS_REGULAR_DIMENSION@19..24
0: CSS_NUMBER_LITERAL@19..22 "100" [] []
1: IDENT@22..24 "px" [] []
3: R_PAREN@24..25 ")" [] []
1: (empty)
1: SEMICOLON@25..26 ";" [] []
1: CSS_DECLARATION_WITH_SEMICOLON@26..49
0: CSS_DECLARATION@26..48
0: CSS_GENERIC_PROPERTY@26..48
0: CSS_IDENTIFIER@26..35
0: IDENT@26..35 "prod" [Newline("\n"), Whitespace(" ")] []
1: COLON@35..37 ":" [] [Whitespace(" ")]
2: CSS_GENERIC_COMPONENT_VALUE_LIST@37..48
0: CSS_FUNCTION@37..48
0: CSS_IDENTIFIER@37..41
0: IDENT@37..41 "--fn" [] []
1: L_PAREN@41..42 "(" [] []
2: CSS_PARAMETER_LIST@42..47
0: CSS_PARAMETER@42..47
0: CSS_LIST_OF_COMPONENT_VALUES_EXPRESSION@42..47
0: CSS_COMPONENT_VALUE_LIST@42..47
0: CSS_REGULAR_DIMENSION@42..47
0: CSS_NUMBER_LITERAL@42..45 "100" [] []
1: IDENT@45..47 "px" [] []
3: R_PAREN@47..48 ")" [] []
1: (empty)
1: SEMICOLON@48..49 ";" [] []
2: CSS_DECLARATION_WITH_SEMICOLON@49..76
0: CSS_DECLARATION@49..75
0: CSS_GENERIC_PROPERTY@49..75
0: CSS_IDENTIFIER@49..58
0: IDENT@49..58 "prod" [Newline("\n"), Whitespace(" ")] []
1: COLON@58..60 ":" [] [Whitespace(" ")]
2: CSS_GENERIC_COMPONENT_VALUE_LIST@60..75
0: CSS_FUNCTION@60..75
0: CSS_IDENTIFIER@60..68
0: IDENT@60..68 "--fn--fn" [] []
1: L_PAREN@68..69 "(" [] []
2: CSS_PARAMETER_LIST@69..74
0: CSS_PARAMETER@69..74
0: CSS_LIST_OF_COMPONENT_VALUES_EXPRESSION@69..74
0: CSS_COMPONENT_VALUE_LIST@69..74
0: CSS_REGULAR_DIMENSION@69..74
0: CSS_NUMBER_LITERAL@69..72 "100" [] []
1: IDENT@72..74 "px" [] []
3: R_PAREN@74..75 ")" [] []
1: (empty)
1: SEMICOLON@75..76 ";" [] []
2: R_CURLY@76..78 "}" [Newline("\n")] []
2: EOF@78..78 "" [] []
```