28 lines
1.0 KiB
JavaScript
28 lines
1.0 KiB
JavaScript
import { format as dfFormat } from "date-fns";
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/** Format override adding +543 to year tokens for Buddhist Era (BE). */
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export function format(date, formatStr, options) {
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const beYear = date.getFullYear() + 543;
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switch (formatStr) {
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case "LLLL y":
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case "LLLL yyyy":
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return `${dfFormat(date, "LLLL", options)} ${beYear}`;
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case "LLLL":
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return dfFormat(date, "LLLL", options);
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case "yyyy":
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return String(beYear).padStart(4, "0");
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case "y":
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return String(beYear);
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case "yyyy-MM":
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return `${beYear}-${dfFormat(date, "MM", options)}`;
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case "yyyy-MM-dd":
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return `${beYear}-${dfFormat(date, "MM", options)}-${dfFormat(date, "dd", options)}`;
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case "PPP":
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case "PPPP": {
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const raw = dfFormat(date, formatStr, options);
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return raw.replace(/(.*)(\d{4})(?!.*\d)/, (_m, pre) => `${pre}${beYear}`);
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}
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default:
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return dfFormat(date, formatStr, options);
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}
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}
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