Fallacy

Fallacy is an esoteric programming language by User:GenericSnow, in about a day. It was inspired by brainfuck and is the first in the alphabetical esolangs.

Overview

Fallacy operates exclusively on tokens, this means that it will only ever parse and execute token-by-token.

It only has 16 keywords, it runs with two flags and as much information as you can stuff into a script.

Keywords

Keyword	Function
startscr	Script starter, required
endscr	Script ender, required
def	Defines a variable
init	Initializes a variable to the provided argument
chkdef	Checks if a variable is defined, sets the defined tag to true if it is, based on the provided argument
chk0	Checks if a variable is zero, sets the zero flag to true if it is, based on the provided argument
ify	Checks if the last result of a check was true, if not, jumps
ifn	Checks if the last result of a check was false, if not, jumps
endbl	Ends a block, on ify and ifn
markln	Marks that token with an identifier
jmp	Jumps to either a mark or a specified line
out	Prints a variable or number, or multiple of either, set the last token as "ascii" to print out the provided numbers in ASCII
end	Exclusive to out, tells it when to stop printing out numbers
addvar	Adds an amount to a variable
subvar	Removes an amount from a variable
getusrinput	Grabs one input from the user, acts similarly to the init keyword

Examples

Hello, world!

startscr

out 72 101 108 108 111 32 87 111 114 108 100 ascii end

endscr

Print the alphabet

startscr

def a
init a 26

def b
init b 65

markln loop
  out b ascii end
  addvar b 1
  subvar a 1
  chk0 a
  ify
    jmp loop
  endbl

endscr

External resources

• Interpreter @ GitHub