保誠-保戶業務員媒合平台
HelenHuang
2022-06-09 9bdb95c9e34cef640534e5e5a1e2225a80442000
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var TYPE = require('../../tokenizer').TYPE;
 
var WHITESPACE = TYPE.WhiteSpace;
var COMMENT = TYPE.Comment;
var IDENT = TYPE.Ident;
var LEFTPARENTHESIS = TYPE.LeftParenthesis;
 
module.exports = {
    name: 'MediaQuery',
    structure: {
        children: [[
            'Identifier',
            'MediaFeature',
            'WhiteSpace'
        ]]
    },
    parse: function() {
        this.scanner.skipSC();
 
        var children = this.createList();
        var child = null;
        var space = null;
 
        scan:
        while (!this.scanner.eof) {
            switch (this.scanner.tokenType) {
                case COMMENT:
                    this.scanner.next();
                    continue;
 
                case WHITESPACE:
                    space = this.WhiteSpace();
                    continue;
 
                case IDENT:
                    child = this.Identifier();
                    break;
 
                case LEFTPARENTHESIS:
                    child = this.MediaFeature();
                    break;
 
                default:
                    break scan;
            }
 
            if (space !== null) {
                children.push(space);
                space = null;
            }
 
            children.push(child);
        }
 
        if (child === null) {
            this.error('Identifier or parenthesis is expected');
        }
 
        return {
            type: 'MediaQuery',
            loc: this.getLocationFromList(children),
            children: children
        };
    },
    generate: function(node) {
        this.children(node);
    }
};