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23 lines
807 B
JavaScript
23 lines
807 B
JavaScript
"use strict";
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const execAll = require("fix-esm").require("execall").default;
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const regexPossibleModelNumber = /(?:^|\s)[A-Z0-9-]{3,}(?:\s|$)/g;
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const regexNumber = /[0-9]/;
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const regexLetter = /[A-Z]/;
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// To be considered a 'model number', a space-delimited substring of all-caps/numeric must contain at least one letter and one number.
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module.exports = function extractModelNumber(string) {
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let candidates = execAll(regexPossibleModelNumber, string)
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.filter(({ match }) => regexNumber.test(match) && regexLetter.test(match));
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if (candidates.length === 1) {
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return candidates[0].match;
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} else if (candidates.length === 0) {
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throw new Error(`No model number found in string`);
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} else {
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throw new Error(`More than one potential model number found in string: ${candidates.join(", ")}`);
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}
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};
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