Function formatDateNotePattern

packages/app-core/src/lib/vault-layout.ts:271–312

(
  date: Date,
  pattern: string,
  locale: string,
  parts: { year?: number; week?: number } = {}
)

}

function formatDateNotePattern(
  date: Date,
  pattern: string,
  locale: string,
  parts: { year?: number; week?: number } = {}
): string {
  const year = parts.year ?? date.getFullYear()
  const week = parts.week ?? getISOWeek(date)
  const month = date.getMonth() + 1
  const day = date.getDate()
  return parseDateNotePattern(pattern)
    .map((part) => {
      if (part.kind === 'literal') return part.value
      switch (part.value) {
        case 'yyyy':
          return String(year)
        case 'yy':
          return pad2(year % 100)
        case 'MMMM':
          return localeDatePart(date, locale, { month: 'long' })
        case 'MMM':
          return localeDatePart(date, locale, { month: 'short' })
        case 'MM':
          return pad2(month)
        case 'M':
          return String(month)
        case 'dd':
          return pad2(day)
        case 'd':
          return String(day)
        case 'EEEE':
          return localeDatePart(date, locale, { weekday: 'long' })
        case 'EEE':
          return localeDatePart(date, locale, { weekday: 'short' })
        case 'ww':
          return pad2(week)
        case 'w':
          return String(week)
      }
    })
    .join('')
}

interface DateNotePatternMatch {
  year?: number