// Looks for \d where d is between 1 and 9 and replaces these with the strings
// matched in the last search operation which were surrounded by \( and \).
// Returns the length of the replacement text including any change
// Looks for \d where d is between 1 and 9 and replaces these with the strings
// matched in the last search operation which were surrounded by \( and \).
// Returns the length of the replacement text including any change