Function matchDateNotePattern

packages/app-core/src/lib/vault-layout.ts:336–396

(pattern: string, text: string)

}

function matchDateNotePattern(pattern: string, text: string): DateNotePatternMatch | null {
  const captures: Array<{ token: DateNotePatternToken; index: number }> = []
  let captureIndex = 1
  const source = parseDateNotePattern(pattern)
    .map((part) => {
      if (part.kind === 'literal') return escapeRegex(part.value)
      switch (part.value) {
        case 'yyyy':
          captures.push({ token: part.value, index: captureIndex++ })
          return '(\\d{4})'
        case 'yy':
          captures.push({ token: part.value, index: captureIndex++ })
          return '(\\d{2})'
        case 'MM':
        case 'M':
        case 'dd':
        case 'd':
        case 'ww':
        case 'w':
          captures.push({ token: part.value, index: captureIndex++ })
          return '(\\d{1,2})'
        case 'MMMM':
        case 'MMM':
        case 'EEEE':
        case 'EEE':
          return '[^/]+'
      }
    })
    .join('')
  const re = new RegExp(`^${source}$`)
  const m = re.exec(text)
  if (!m) return null

  const out: DateNotePatternMatch = {}
  for (const capture of captures) {
    const raw = m[capture.index]
    if (!raw) continue
    const value = Number(raw)
    switch (capture.token) {
      case 'yyyy':
        if (!mergeCapture(out, 'year', value)) return null
        break
      case 'yy':
        if (!mergeCapture(out, 'year', readTwoDigitYear(raw))) return null
        break
      case 'MM':
      case 'M':
        if (!mergeCapture(out, 'month', value)) return null
        break
      case 'dd':
      case 'd':
        if (!mergeCapture(out, 'day', value)) return null
        break
      case 'ww':
      case 'w':
        if (!mergeCapture(out, 'week', value)) return null
        break
    }