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24 lines
522 B
JavaScript
24 lines
522 B
JavaScript
2 years ago
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"use strict";
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const { NotEnoughInput, NoMatch } = require("../symbols");
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module.exports = function* zeroOrMore(instruction, state) {
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let matches = [];
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while (true) {
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let result = yield instruction.rule;
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// FIXME: is NotEnoughInput handling actually necessary here? Wouldn't that be handled by the runtime hook?
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if (result === NotEnoughInput) {
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// Propagate, reparse later
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return NotEnoughInput;
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} else if (result === NoMatch) {
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break;
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} else {
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matches.push(result);
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}
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}
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return matches;
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};
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