51 lines
2.1 KiB
TypeScript
51 lines
2.1 KiB
TypeScript
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const defaultLocaleStringFormats: {[index: string]: string} = {
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'weekday': 'narrow',
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'era': 'narrow',
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'year': 'numeric',
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'month': 'numeric',
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'day': 'numeric',
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'hour': 'numeric',
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'minute': 'numeric',
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'second': 'numeric',
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'timeZoneName': 'short'
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};
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function formatLocaleString(date: Date, format: string): string {
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return format.replace(/\{\{(\w+)(:(\w+))?\}\}/g, (match: string, kind: string, unused?, option?: string) => {
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if (['weekday', 'era', 'year', 'month', 'day', 'hour', 'minute', 'second', 'timeZoneName'].includes(kind)) {
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return date.toLocaleString(window.navigator.language, {[kind]: option ? option : defaultLocaleStringFormats[kind]});
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} else {
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return match;
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}
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});
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}
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function formatDateTimeString(date: Date, format: string): string {
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return format
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.replace(/yyyy/g, date.getFullYear().toString())
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.replace(/yy/g, date.getFullYear().toString().slice(-2))
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.replace(/MMMM/g, date.toLocaleString(window.navigator.language, { month: 'long'}))
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.replace(/MMM/g, date.toLocaleString(window.navigator.language, { month: 'short'}))
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.replace(/MM/g, (`0${date.getMonth() + 1}`).slice(-2))
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.replace(/M/g, (date.getMonth() + 1).toString())
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.replace(/dd/g, (`0${date.getDate()}`).slice(-2))
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.replace(/d/g, date.getDate().toString())
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.replace(/HH/g, (`0${date.getHours()}`).slice(-2))
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.replace(/H/g, date.getHours().toString())
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.replace(/hh/g, (`0${(date.getHours() % 12) || 12}`).slice(-2))
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.replace(/h/g, ((date.getHours() % 12) || 12).toString())
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.replace(/mm/g, (`0${date.getMinutes()}`).slice(-2))
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.replace(/m/g, date.getMinutes().toString())
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.replace(/ss/g, (`0${date.getSeconds()}`).slice(-2))
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.replace(/s/g, date.getSeconds().toString())
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.replace(/tt/g, date.getHours() >= 12 ? 'PM' : 'AM');
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}
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export function formatTimeString(date: Date, format: string): string {
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return format.replace(/\[(([^\[]|\[\])*)\]|([yMdHhmst]{1,4})/g, (match: string, localeformat?: string, unused?, datetimeformat?: string) => {
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if (localeformat) return formatLocaleString(date, localeformat);
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if (datetimeformat) return formatDateTimeString(date, datetimeformat);
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return match;
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});
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}
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