Quick question, would the part of "if (! !isin $left($1,1))" work as a replacer? like
if (brb !isin 0,1 $left 4,1°7,1ø6,1·4,1¤6,1·7,1ø4,1°14,1«15,1« $+ 4,1B7,1e 4,1R7,1ight 4,1B7,1ack $+ 15,1»14,1»4,1°7,1ø6,1·4,1¤6,1·7,1ø4,1° $right)
Would that work?