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55 lines
1.3 KiB
55 lines
1.3 KiB
2 years ago
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var TYPE = require('../tokenizer').TYPE;
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var WHITESPACE = TYPE.WhiteSpace;
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var COMMENT = TYPE.Comment;
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module.exports = function readSequence(recognizer) {
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var children = this.createList();
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var child = null;
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var context = {
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recognizer: recognizer,
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space: null,
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ignoreWS: false,
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ignoreWSAfter: false
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};
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this.scanner.skipSC();
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while (!this.scanner.eof) {
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switch (this.scanner.tokenType) {
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case COMMENT:
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this.scanner.next();
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continue;
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case WHITESPACE:
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if (context.ignoreWS) {
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this.scanner.next();
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} else {
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context.space = this.WhiteSpace();
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}
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continue;
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}
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child = recognizer.getNode.call(this, context);
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if (child === undefined) {
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break;
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}
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if (context.space !== null) {
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children.push(context.space);
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context.space = null;
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}
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children.push(child);
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if (context.ignoreWSAfter) {
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context.ignoreWSAfter = false;
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context.ignoreWS = true;
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} else {
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context.ignoreWS = false;
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}
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}
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return children;
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};
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