Last change
on this file since e29cc2e was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
initial commit
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Property mode
set to
100644
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File size:
1.2 KB
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[6a3a178] | 1 | var TYPE = require('../tokenizer').TYPE;
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| 2 | var WHITESPACE = TYPE.WhiteSpace;
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| 3 | var COMMENT = TYPE.Comment;
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| 4 |
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| 5 | module.exports = function readSequence(recognizer) {
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| 6 | var children = this.createList();
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| 7 | var child = null;
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| 8 | var context = {
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| 9 | recognizer: recognizer,
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| 10 | space: null,
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| 11 | ignoreWS: false,
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| 12 | ignoreWSAfter: false
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| 13 | };
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| 14 |
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| 15 | this.scanner.skipSC();
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| 16 |
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| 17 | while (!this.scanner.eof) {
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| 18 | switch (this.scanner.tokenType) {
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| 19 | case COMMENT:
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| 20 | this.scanner.next();
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| 21 | continue;
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| 22 |
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| 23 | case WHITESPACE:
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| 24 | if (context.ignoreWS) {
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| 25 | this.scanner.next();
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| 26 | } else {
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| 27 | context.space = this.WhiteSpace();
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| 28 | }
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| 29 | continue;
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| 30 | }
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| 31 |
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| 32 | child = recognizer.getNode.call(this, context);
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| 33 |
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| 34 | if (child === undefined) {
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| 35 | break;
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| 36 | }
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| 37 |
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| 38 | if (context.space !== null) {
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| 39 | children.push(context.space);
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| 40 | context.space = null;
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| 41 | }
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| 42 |
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| 43 | children.push(child);
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| 44 |
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| 45 | if (context.ignoreWSAfter) {
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| 46 | context.ignoreWSAfter = false;
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| 47 | context.ignoreWS = true;
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| 48 | } else {
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| 49 | context.ignoreWS = false;
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| 50 | }
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| 51 | }
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| 52 |
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| 53 | return children;
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| 54 | };
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