forked from zhurui/management
70 lines
2.0 KiB
JavaScript
70 lines
2.0 KiB
JavaScript
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var isWhiteSpace = require('../../tokenizer').isWhiteSpace;
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var cmpStr = require('../../tokenizer').cmpStr;
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var TYPE = require('../../tokenizer').TYPE;
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var FUNCTION = TYPE.Function;
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var URL = TYPE.Url;
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var RIGHTPARENTHESIS = TYPE.RightParenthesis;
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// <url-token> | <function-token> <string> )
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module.exports = {
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name: 'Url',
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structure: {
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value: ['String', 'Raw']
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},
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parse: function() {
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var start = this.scanner.tokenStart;
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var value;
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switch (this.scanner.tokenType) {
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case URL:
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var rawStart = start + 4;
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var rawEnd = this.scanner.tokenEnd - 1;
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while (rawStart < rawEnd && isWhiteSpace(this.scanner.source.charCodeAt(rawStart))) {
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rawStart++;
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}
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while (rawStart < rawEnd && isWhiteSpace(this.scanner.source.charCodeAt(rawEnd - 1))) {
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rawEnd--;
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}
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value = {
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type: 'Raw',
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loc: this.getLocation(rawStart, rawEnd),
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value: this.scanner.source.substring(rawStart, rawEnd)
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};
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this.eat(URL);
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break;
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case FUNCTION:
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if (!cmpStr(this.scanner.source, this.scanner.tokenStart, this.scanner.tokenEnd, 'url(')) {
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this.error('Function name must be `url`');
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}
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this.eat(FUNCTION);
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this.scanner.skipSC();
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value = this.String();
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this.scanner.skipSC();
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this.eat(RIGHTPARENTHESIS);
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break;
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default:
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this.error('Url or Function is expected');
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}
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return {
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type: 'Url',
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loc: this.getLocation(start, this.scanner.tokenStart),
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value: value
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};
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},
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generate: function(node) {
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this.chunk('url');
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this.chunk('(');
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this.node(node.value);
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this.chunk(')');
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}
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};
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