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Comments on How to initialize variable assignment in a non-OOP interpreter?

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How to initialize variable assignment in a non-OOP interpreter?

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I'm still in the process of making MarkFuncs and having given up from copy-pasting open-source interpreters, them using OOP too, I decided to make one without OOP and with scratch alongside with the help of @Moshi in the Discord server.

test4 is where I'm currently at right now. interpreter.py currently has an output syntax for strings, and 2 functions that solve a challenge each in Code Golf CD. Right now, I want to do some math, in other words, deal with integers. The first problem to encounter, however is variable assignment.

I still have no idea how to get a specific keyword stored into the program and its value, then be reused and/or outputted. Here's what I have in mind for the syntax to be like:

x=9;y=10;→x+y; # Full program
x=9            # Assign 9 in variable named x
   ;           # Semicolon to terminate the assigning process
    y=10       # Assign 10 in variable named y
        ;      # Semicolon to terminate the assigning process
         →x+y  # Output the sum of x and y (uses the in-progress calculate() function)
             ; # Semicolon to terminate the outputting process

This will be put in the Input section of the TIO link.

Since I'm not using OOP--and I want to keep it that way--, it'll be tricky to even make variable assigning possible, and that's why I need help here.

Question: How to make variable assigning possible in my Python-written interpreter?

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1 comment thread

A simple approach is to have a dictionary (so you store as `vars['x'] = x_value`). Of course this doe... (1 comment)
A simple approach is to have a dictionary (so you store as `vars['x'] = x_value`). Of course this doe...
hkotsubo‭ wrote over 2 years ago · edited over 2 years ago

A simple approach is to have a dictionary (so you store as vars['x'] = x_value). Of course this doesn't handle different scopes, but for a very simple interpreter, it's a starting point...

As a side note, this has absolutely nothing to do with being OOP or not.