88 lines
2.4 KiB
JavaScript
88 lines
2.4 KiB
JavaScript
var tokenizer = require('../../tokenizer');
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var TYPE = tokenizer.TYPE;
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var WhiteSpace = TYPE.WhiteSpace;
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var Semicolon = TYPE.Semicolon;
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var LeftCurlyBracket = TYPE.LeftCurlyBracket;
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var Delim = TYPE.Delim;
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var EXCLAMATIONMARK = 0x0021; // U+0021 EXCLAMATION MARK (!)
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function getOffsetExcludeWS() {
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if (this.scanner.tokenIndex > 0) {
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if (this.scanner.lookupType(-1) === WhiteSpace) {
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return this.scanner.tokenIndex > 1
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? this.scanner.getTokenStart(this.scanner.tokenIndex - 1)
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: this.scanner.firstCharOffset;
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}
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}
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return this.scanner.tokenStart;
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}
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// 0, 0, false
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function balanceEnd() {
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return 0;
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}
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// LEFTCURLYBRACKET, 0, false
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function leftCurlyBracket(tokenType) {
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return tokenType === LeftCurlyBracket ? 1 : 0;
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}
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// LEFTCURLYBRACKET, SEMICOLON, false
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function leftCurlyBracketOrSemicolon(tokenType) {
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return tokenType === LeftCurlyBracket || tokenType === Semicolon ? 1 : 0;
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}
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// EXCLAMATIONMARK, SEMICOLON, false
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function exclamationMarkOrSemicolon(tokenType, source, offset) {
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if (tokenType === Delim && source.charCodeAt(offset) === EXCLAMATIONMARK) {
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return 1;
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}
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return tokenType === Semicolon ? 1 : 0;
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}
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// 0, SEMICOLON, true
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function semicolonIncluded(tokenType) {
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return tokenType === Semicolon ? 2 : 0;
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}
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module.exports = {
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name: 'Raw',
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structure: {
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value: String
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},
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parse: function(startToken, mode, excludeWhiteSpace) {
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var startOffset = this.scanner.getTokenStart(startToken);
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var endOffset;
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this.scanner.skip(
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this.scanner.getRawLength(startToken, mode || balanceEnd)
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);
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if (excludeWhiteSpace && this.scanner.tokenStart > startOffset) {
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endOffset = getOffsetExcludeWS.call(this);
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} else {
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endOffset = this.scanner.tokenStart;
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}
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return {
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type: 'Raw',
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loc: this.getLocation(startOffset, endOffset),
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value: this.scanner.source.substring(startOffset, endOffset)
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};
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},
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generate: function(node) {
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this.chunk(node.value);
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},
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mode: {
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default: balanceEnd,
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leftCurlyBracket: leftCurlyBracket,
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leftCurlyBracketOrSemicolon: leftCurlyBracketOrSemicolon,
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exclamationMarkOrSemicolon: exclamationMarkOrSemicolon,
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semicolonIncluded: semicolonIncluded
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}
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};
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