初始化

康凯

2022-05-20 aa4c235a8ca67ea8b731f90c951a465e92c0a865

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var TYPE = require('../../tokenizer').TYPE;
 
var STRING = TYPE.String;
var IDENTIFIER = TYPE.Identifier;
var URL = TYPE.Url;
var LEFTPARENTHESIS = TYPE.LeftParenthesis;
 
module.exports = {
    parse: {
        prelude: function() {
            var children = this.createList();
 
            this.scanner.skipSC();
 
            switch (this.scanner.tokenType) {
                case STRING:
                    children.push(this.String());
                    break;
 
                case URL:
                    children.push(this.Url());
                    break;
 
                default:
                    this.scanner.error('String or url() is expected');
            }
 
            if (this.scanner.lookupNonWSType(0) === IDENTIFIER ||
                this.scanner.lookupNonWSType(0) === LEFTPARENTHESIS) {
                children.push(this.WhiteSpace());
                children.push(this.MediaQueryList());
            }
 
            return children;
        },
        block: null
    }
};