This way of converting "string" to "s" (for example)

0) program reads the whole buffer, stores it as an array of instructions
1) program reverses the order of the instructions
2) parser makes standard token from an instruction ("asd" -> ASD)
3) parser2 assigns operands to instruction
4) parser 3 makes string from instruction token ?????
5) parser fucking 4 makeS A MUTABLE STRING INSTRUCTION
6) PARSER FIVE SUBSTITUES OPERANDS
7) AND THEN CUTS IT TO A REVERSED ARRAY OF COMMANDS
8) AND PUSHES IT UNTO THE STACK

WHAT