40 lines
1.2 KiB
JavaScript
Executable File
40 lines
1.2 KiB
JavaScript
Executable File
'use strict';
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function resolveEnd(end, offset, reqSpace, onError) {
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let comment = '';
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if (end) {
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let hasSpace = false;
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let sep = '';
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for (const token of end) {
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const { source, type } = token;
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switch (type) {
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case 'space':
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hasSpace = true;
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break;
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case 'comment': {
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if (reqSpace && !hasSpace)
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onError(token, 'MISSING_CHAR', 'Comments must be separated from other tokens by white space characters');
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const cb = source.substring(1) || ' ';
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if (!comment)
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comment = cb;
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else
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comment += sep + cb;
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sep = '';
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break;
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}
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case 'newline':
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if (comment)
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sep += source;
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hasSpace = true;
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break;
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default:
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onError(token, 'UNEXPECTED_TOKEN', `Unexpected ${type} at node end`);
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}
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offset += source.length;
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}
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}
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return { comment, offset };
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}
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exports.resolveEnd = resolveEnd;
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