Sha256: cf11283428e2329d818e954f49669f305c6b5b056a631f0610e7bd9a72d490ed
Contents?: true
Size: 1.93 KB
Versions: 19
Compression:
Stored size: 1.93 KB
Contents
var isHex = require('../../tokenizer').isHex;
var TYPE = require('../../tokenizer').TYPE;
var IDENTIFIER = TYPE.Identifier;
var NUMBER = TYPE.Number;
var NUMBERSIGN = TYPE.NumberSign;
function consumeHexSequence(scanner, required) {
if (!isHex(scanner.source.charCodeAt(scanner.tokenStart))) {
if (required) {
scanner.error('Unexpected input', scanner.tokenStart);
} else {
return;
}
}
for (var pos = scanner.tokenStart + 1; pos < scanner.tokenEnd; pos++) {
var code = scanner.source.charCodeAt(pos);
// break on non-hex char
if (!isHex(code)) {
// break token, exclude symbol
scanner.tokenStart = pos;
return;
}
}
// token is full hex sequence, go to next token
scanner.next();
}
// # ident
module.exports = {
name: 'HexColor',
structure: {
value: String
},
parse: function() {
var start = this.scanner.tokenStart;
this.scanner.eat(NUMBERSIGN);
scan:
switch (this.scanner.tokenType) {
case NUMBER:
consumeHexSequence(this.scanner, true);
// if token is identifier then number consists of hex only,
// try to add identifier to result
if (this.scanner.tokenType === IDENTIFIER) {
consumeHexSequence(this.scanner, false);
}
break;
case IDENTIFIER:
consumeHexSequence(this.scanner, true);
break;
default:
this.scanner.error('Number or identifier is expected');
}
return {
type: 'HexColor',
loc: this.getLocation(start, this.scanner.tokenStart),
value: this.scanner.substrToCursor(start + 1) // skip #
};
},
generate: function(node) {
this.chunk('#');
this.chunk(node.value);
}
};
Version data entries
19 entries across 18 versions & 4 rubygems