True (Ractangle)

Not to be confused with True.

true is a FALSE-like language created by User:Ractangle

Commands

Implemented

• Literals
  • "..." pushes a string to the stack
  • 0-9 pushes a number to the stack
  • (...) lambda
• I/O
  • . prints the popped element
  • , gets input and pushes it to the stack
• Stack manipulation
  • : duplicate the top value of the stack
  • - discard the top value on the stack
• Arithmetic
  • + add the two top intergers together
  • ` negates the top value on the stak
• Other
  • [...] comments

The pointer goes to the beginning of the program when it gets to the end of the program, but does not encounter a newline

Newline

You can consider this as a command if you want to

All it does is just halt the program

Unimplemented

• ? conditional

Examples

Hello, world!

"Hello, world!".
­ 

Cat program (with EOF error)

,.

Infinite loop

As long as you don't encounter an IndexError/EOFError, have your code be on one line (a.k.a. not adding a new line) and do absolutely nothing, it will loop

Implementations

• File in User:Ractangle's website repo