Function buildProbeReport

pages/probe.ts:756–838

()

}

function buildProbeReport(): ProbeReport {
  document.title = 'Pretext — Text Probe'
  document.documentElement.lang = lang
  document.documentElement.dir = direction

  book.textContent = text
  book.lang = lang
  book.dir = direction
  book.style.font = font
  book.style.letterSpacing = `${letterSpacing}px`
  book.style.lineHeight = `${lineHeight}px`
  book.style.padding = `${PADDING}px`
  book.style.width = `${width}px`
  book.style.whiteSpace = cssWhiteSpace
  book.style.wordBreak = cssWordBreak

  diagnosticDiv.textContent = text
  diagnosticDiv.lang = lang
  diagnosticDiv.dir = direction
  diagnosticDiv.style.font = font
  diagnosticDiv.style.letterSpacing = `${letterSpacing}px`
  diagnosticDiv.style.lineHeight = `${lineHeight}px`
  diagnosticDiv.style.padding = `${PADDING}px`
  diagnosticDiv.style.width = `${width}px`
  diagnosticDiv.style.whiteSpace = cssWhiteSpace
  diagnosticDiv.style.wordBreak = cssWordBreak

  const prepared = prepareWithSegments(text, font, { whiteSpace, wordBreak, letterSpacing })
  const normalizedText = prepared.segments.join('')
  const contentWidth = width - PADDING * 2
  const predicted = layout(prepared, contentWidth, lineHeight)
  const actualHeight = book.getBoundingClientRect().height
  const ourLines = getPublicLines(prepared, normalizedText, contentWidth, lineHeight, font)
  const alternateBrowserLineMethod = browserLineMethod === 'span' ? 'range' : 'span'
  const browserLines = getBrowserLines(prepared, font, direction, browserLineMethod)
  const alternateBrowserLines = getBrowserLines(prepared, font, direction, alternateBrowserLineMethod)
  const firstBreakMismatch = getFirstBreakMismatch(normalizedText, contentWidth, ourLines, browserLines)
  const alternateFirstBreakMismatch = getFirstBreakMismatch(normalizedText, contentWidth, ourLines, alternateBrowserLines)
  const breakTrace = firstBreakMismatch === null
    ? null
    : getBreakTrace(
        prepared,
        font,
        contentWidth,
        ourLines[firstBreakMismatch.line - 1],
        browserLines[firstBreakMismatch.line - 1],
        firstBreakMismatch,
      )
  const extractorSensitivity =
    firstBreakMismatch !== null && alternateFirstBreakMismatch === null
      ? `${browserLineMethod} mismatch disappears with ${alternateBrowserLineMethod}`
      : null

  return withRequestId({
    status: 'ready',
    text,
    whiteSpace,
    wordBreak,