Haha Language

This is my take on making my own esoteric interpreted toy programming language, named Haha for fun. This is just a very basic interpreter, coded as a beginner in C++, so it goes without saying: use it on your own risk. _{It might even explode.}

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Running

The dependencies that the interpreter use are all present in the modern C++ standard library: regex, vector, fstream, etc. So it shouldn't be too hard to compile it with MinGW if you're on Windows. I'll upload a statically-linked build in the release tab soon if you want.

After you opened the program, it will then ask you to input the name of your .haha file. Simply write the full name of it there and press enter.

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Contents

• Printing "Hello World!"
• Variables
• Arithmetic
• Increment and Decrement
• Newlines
• System Commands
• Selection
• Iteration
• Rock, Paper, Scissors
• Warning

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Printing "Hello World!"

What's an introduction to a programming language without starting at the famous Hello World!? To print a Hello World! program, make a new file named helloworld.haha, and use the haha keyword to print text to the console:

haha Hello World!

Output: Hello World!

We don't use double quotes because haha always expect string literals as its subsequent argument. In order to print variables, we use hahaha.

hahaha x

This prints a variable named x.

Note: Keywords MUST always be placed at the start of a line. Otherwise, it will be considered a comment.

This is a comment!
  haha This also now a comment!

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Variables

Haha has only two data types: a signed integer (ha) and a string (ah).

Here's an example of a variable declaration:

ha x 10
ah text What da dog doin

To take an input and store it to a variable, you can use hhaa.

ha x 0
hhaa x
hahaha x

This declares a signed integer variable x initialized as 0 at its definition. It then proceeds to request an input from the user to store in the x variable— then prints it out to the console.

Note: To delete a variable from memory, use the 'aaa' keyword, followed by the variable name to wipe out its existence from the memory.

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Arithmetic

Haha only supports the four basic math operations +,-,*,/.

To calculate, you can use the aha keyword.

ha x 3
ha y 2
ha z 0
aha x + y z
hahaha z

Output: 5

It takes four arguments: variable, operator,variable,variable. Where the first two variables are used to get the numbers to calculate and the third one to store it (which in this case is variable z).

In addition to arithmetic, I also added random number operation by using the hhh keyword, followed by the variable name you want to store it into.

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Increment and Decrement

To increment/decrement an ha variable, you can use a, followed by ++ or --, and the target integer variable.

a ++ x
a -- x

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Newlines

Haha doesn't read a newline symbol (\n). So in order to create one, you use h. It takes an integer as its subsequent argument to print how many newlines you want.

This prints out 1 newline:

h 1

This prints out 1000 newline (yeh):

h 1000

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System commands

To execute commands on the system console, you can use aah.

For clearing the screen.

aah clear

For viewing the current date.

aah date
aah time

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Selection

To start a condition, you can use the haa keyword, ending with he to break the condition.

ha x 10
ha y 5
haa x < y
haha x
he

Nothing will be printed to the console with this program (because 10 isn't greater than 5).

haa only takes an integer variable as its argument.

Note: Nested haa is not supported. Trying to nest haa statements will result in unexpected things occurring. I warned you.

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Iteration

In order to iterate through a series of keywords, you can use haahaa, followed by an ha variable argument to specify how many times you want to re-iterate, and ending with hehe to break the iteration.

ha x 5
haahaa x
hahaha x
a ++ x
hehe

Output: 56789

Note: If you didn't add an argument to haahaa, it will automatically evaluate to 1. Nested statements here are also a no-no.

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Rock, Papers, Scissors

Here's a simple implementation of a rock, papers, scissors game in Haha language that loops 3 times:

ha count 3

ha ai 0
ha p 0
ha total 0


haahaa count

haha Lets play rock, papers, scissors:
h 2
haha 1 - Rock
h 1
haha 2 - Paper
h 1
haha 3 - Scissor
h 2
haha Player: 


hhh 3 ai
hhaa p
h 1


aha p + ai total
aha p + total total

ha rockpaper 5
ha scissor 8
ha notrockpaper 7
ha notscissor 4


haha Player: 
hahaha p
h 1

haha AI: 
hahaha ai
h 2

haa p = ai
haha Draw!
he

haa total = rockpaper
haha Player Wins!
he

haa total = scissor
haha Player Wins!
he

haa total = notrockpaper
haha You Lose!
he

haa total = notscissor
haha You Lose!
he

h 2

aaa rockpaper
aaa scissor
aaa notrockpaper
aaa notscissor

hehe

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Warning

This is my very first time creating my own programming language, so expect that there would be a LOT of edge cases (also zero error handling). I'm simply relatively inexperienced in the end, so constructive criticisms are always welcomed!

License

MIT