Function preserveQuoteStyle

src/tools/FileEditTool/utils.ts:104–136

(
  oldString: string,
  actualOldString: string,
  newString: string,
)

 * otherwise it's a closing quote.
 */
export function preserveQuoteStyle(
  oldString: string,
  actualOldString: string,
  newString: string,
): string {
  // If they're the same, no normalization happened
  if (oldString === actualOldString) {
    return newString
  }

  // Detect which curly quote types were in the file
  const hasDoubleQuotes =
    actualOldString.includes(LEFT_DOUBLE_CURLY_QUOTE) ||
    actualOldString.includes(RIGHT_DOUBLE_CURLY_QUOTE)
  const hasSingleQuotes =
    actualOldString.includes(LEFT_SINGLE_CURLY_QUOTE) ||
    actualOldString.includes(RIGHT_SINGLE_CURLY_QUOTE)

  if (!hasDoubleQuotes && !hasSingleQuotes) {
    return newString
  }

  let result = newString

  if (hasDoubleQuotes) {
    result = applyCurlyDoubleQuotes(result)
  }
  if (hasSingleQuotes) {
    result = applyCurlySingleQuotes(result)
  }

  return result
}

function isOpeningContext(chars: string[], index: number): boolean {
  if (index === 0) {