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Block.js
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Block.js
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var List = require('../../utils/list');
var TYPE = require('../../tokenizer').TYPE;
var WHITESPACE = TYPE.WhiteSpace;
var COMMENT = TYPE.Comment;
var SEMICOLON = TYPE.Semicolon;
var COMMERCIALAT = TYPE.CommercialAt;
var LEFTCURLYBRACKET = TYPE.LeftCurlyBracket;
var RIGHTCURLYBRACKET = TYPE.RightCurlyBracket;
module.exports = {
name: 'Block',
structure: {
children: [['Atrule', 'Rule', 'Declaration']]
},
parse: function(defaultConsumer) {
defaultConsumer = defaultConsumer || this.Declaration;
var start = this.scanner.tokenStart;
var children = new List();
this.scanner.eat(LEFTCURLYBRACKET);
scan:
while (!this.scanner.eof) {
switch (this.scanner.tokenType) {
case RIGHTCURLYBRACKET:
break scan;
case WHITESPACE:
case COMMENT:
case SEMICOLON:
this.scanner.next();
break;
case COMMERCIALAT:
children.appendData(this.Atrule());
break;
default:
children.appendData(defaultConsumer.call(this));
}
}
this.scanner.eat(RIGHTCURLYBRACKET);
return {
type: 'Block',
loc: this.getLocation(start, this.scanner.tokenStart),
children: children
};
},
generate: function(processChunk, node) {
processChunk('{');
this.each(processChunk, node.children);
processChunk('}');
},
walkContext: 'block'
};