82 lines
2.2 KiB
JavaScript
82 lines
2.2 KiB
JavaScript
var TYPE = require('../../tokenizer').TYPE;
|
|
|
|
var WHITESPACE = TYPE.WhiteSpace;
|
|
var COMMENT = TYPE.Comment;
|
|
var ATKEYWORD = TYPE.AtKeyword;
|
|
var CDO = TYPE.CDO;
|
|
var CDC = TYPE.CDC;
|
|
var EXCLAMATIONMARK = 0x0021; // U+0021 EXCLAMATION MARK (!)
|
|
|
|
function consumeRaw(startToken) {
|
|
return this.Raw(startToken, null, false);
|
|
}
|
|
|
|
module.exports = {
|
|
name: 'StyleSheet',
|
|
structure: {
|
|
children: [[
|
|
'Comment',
|
|
'CDO',
|
|
'CDC',
|
|
'Atrule',
|
|
'Rule',
|
|
'Raw'
|
|
]]
|
|
},
|
|
parse: function() {
|
|
var start = this.scanner.tokenStart;
|
|
var children = this.createList();
|
|
var child;
|
|
|
|
scan:
|
|
while (!this.scanner.eof) {
|
|
switch (this.scanner.tokenType) {
|
|
case WHITESPACE:
|
|
this.scanner.next();
|
|
continue;
|
|
|
|
case COMMENT:
|
|
// ignore comments except exclamation comments (i.e. /*! .. */) on top level
|
|
if (this.scanner.source.charCodeAt(this.scanner.tokenStart + 2) !== EXCLAMATIONMARK) {
|
|
this.scanner.next();
|
|
continue;
|
|
}
|
|
|
|
child = this.Comment();
|
|
break;
|
|
|
|
case CDO: // <!--
|
|
child = this.CDO();
|
|
break;
|
|
|
|
case 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 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.scanner.tokenStart),
|
|
children: children
|
|
};
|
|
},
|
|
generate: function(node) {
|
|
this.children(node);
|
|
},
|
|
walkContext: 'stylesheet'
|
|
};
|