You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
83 lines
2.0 KiB
83 lines
2.0 KiB
'use strict'; |
|
|
|
const types = require('../../tokenizer/types.cjs'); |
|
|
|
const EXCLAMATIONMARK = 0x0021; // U+0021 EXCLAMATION MARK (!) |
|
|
|
function consumeRaw(startToken) { |
|
return this.Raw(startToken, null, false); |
|
} |
|
|
|
const name = 'StyleSheet'; |
|
const walkContext = 'stylesheet'; |
|
const structure = { |
|
children: [[ |
|
'Comment', |
|
'CDO', |
|
'CDC', |
|
'Atrule', |
|
'Rule', |
|
'Raw' |
|
]] |
|
}; |
|
|
|
function parse() { |
|
const start = this.tokenStart; |
|
const children = this.createList(); |
|
let child; |
|
|
|
while (!this.eof) { |
|
switch (this.tokenType) { |
|
case types.WhiteSpace: |
|
this.next(); |
|
continue; |
|
|
|
case types.Comment: |
|
// ignore comments except exclamation comments (i.e. /*! .. */) on top level |
|
if (this.charCodeAt(this.tokenStart + 2) !== EXCLAMATIONMARK) { |
|
this.next(); |
|
continue; |
|
} |
|
|
|
child = this.Comment(); |
|
break; |
|
|
|
case types.CDO: // <!-- |
|
child = this.CDO(); |
|
break; |
|
|
|
case types.CDC: // --> |
|
child = this.CDC(); |
|
break; |
|
|
|
// CSS Syntax Module Level 3 |
|
// §2.2 Error handling |
|
// At the "top level" of a stylesheet, an <at-keyword-token> starts an at-rule. |
|
case types.AtKeyword: |
|
child = this.parseWithFallback(this.Atrule, consumeRaw); |
|
break; |
|
|
|
// Anything else starts a qualified rule ... |
|
default: |
|
child = this.parseWithFallback(this.Rule, consumeRaw); |
|
} |
|
|
|
children.push(child); |
|
} |
|
|
|
return { |
|
type: 'StyleSheet', |
|
loc: this.getLocation(start, this.tokenStart), |
|
children |
|
}; |
|
} |
|
|
|
function generate(node) { |
|
this.children(node); |
|
} |
|
|
|
exports.generate = generate; |
|
exports.name = name; |
|
exports.parse = parse; |
|
exports.structure = structure; |
|
exports.walkContext = walkContext;
|
|
|