Haifuckqueue

haifuckqueue is a stack-based esolang created by User:4gboframram in September 2021. It is inspired by the concept of the traditional Japanese poem, the Haiku. However, programs in this language do not actually look like Haikus but follow a similar form.

Language Formatting

• Programs are split into chunks of 3 lines of code called stanzas
• The first line of the stanza must be 5 characters in length, the second must be 7 characters, and the third must be 5 characters long. Depending on the implementation, there may be an enforced newline between stanzas, which is recommended.

The Stack

• The stack is a finite, array that does not change in length during runtime.
• Depending on the implementation, each item on the stack is at least 2 bytes signed.

Syntax

Haifuckqueue has a set of operations. These operations can take in a single argument, which is always a number, or have no arguments. Arguments are placed after the operation. Here is the list of operations and descriptions:

Symbol	Arguments	Effect
+	None	Adds the top 2 items on the stack and sets the 3rd item to be the result.
-	None	Subtracts the top 2 items on the stack and sets the 3rd item to be the result.
*	None	Multiplies the top 2 items on the stack and sets the 3rd item to be the result. May cause overflow depending on implementation
/	None	Floor divides the top 2 items on the stack and sets the 3rd item to be the result.
~	None	Sets the top item of the stack to the bitwise inverse of the top item of the stack
&	None	Takes the bitwise and of the top 2 items on the stack and sets the 3rd item to be the result.
^	None	Takes the bitwise xor of the top 2 items on the stack and sets the 3rd item to be the result.
o	None	Takes the bitwise or of the top 2 items on the stack and sets the 3rd item to be the result.
|	Number	Sets the top item of the stack to be the value of Number
$	Number	Print the top Number items on the stack as their character.
d	Number	Print the Numberth item on the stack as a digit.
c	Number	Print value of Numberth item on the stack as a character
s	Number	Swap the item on top of the stack and the Numberth item on the stack
.	Number	Jumps to Numberth line if the top of the stack is not zero
!	None	Sets every item on the stack to 0
#	None	Pops the top item on the stack.
)	None	Increments the top item on the stack
(	None	Decrements the top item on the stack
a	None	Sets to top item on the stack to the next byte of the input
p	None	Pushes a 0 on top of the stack

There are also variable numbers that change based on the program state.

• @ - The number of non-zero items on the stack
• A - The number of bytes in the input arguments, including the separating null bytes

Strings can be made with this syntax {Chars}

• Creating a string sets the top {length of Chars} to be the ascii values of string
• For example, {Hel} sets a stack that starts as 0 0 0 0 0 to 72 101 108 0 0

Examples

Hello World! (with trailing newline)

{Hel}
$3{lo }
$3{W}
$1{o}
$1{rld}
$3{!}
$1|10
$1ooooo
ooooo 

Here, since there needed to be more characters to fit the stanza, there are redundant or operations at the end.

Fibonacci (up to implementation's stack item size)

|1s2+
+s3s2d1
.2+++ 

External Resources

• (Official) Python Interpreter For HaiFuckQueue