28 lines
1016 B
JavaScript
28 lines
1016 B
JavaScript
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"use strict";
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exports.isProtectedDayOfYearToken = isProtectedDayOfYearToken;
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exports.isProtectedWeekYearToken = isProtectedWeekYearToken;
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exports.warnOrThrowProtectedError = warnOrThrowProtectedError;
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const dayOfYearTokenRE = /^D+$/;
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const weekYearTokenRE = /^Y+$/;
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const throwTokens = ["D", "DD", "YY", "YYYY"];
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function isProtectedDayOfYearToken(token) {
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return dayOfYearTokenRE.test(token);
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}
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function isProtectedWeekYearToken(token) {
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return weekYearTokenRE.test(token);
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}
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function warnOrThrowProtectedError(token, format, input) {
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const _message = message(token, format, input);
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console.warn(_message);
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if (throwTokens.includes(token)) throw new RangeError(_message);
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}
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function message(token, format, input) {
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const subject = token[0] === "Y" ? "years" : "days of the month";
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return `Use \`${token.toLowerCase()}\` instead of \`${token}\` (in \`${format}\`) for formatting ${subject} to the input \`${input}\`; see: https://github.com/date-fns/date-fns/blob/master/docs/unicodeTokens.md`;
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}
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