https://github.com/glubs9/plus-minus-interpreter

a maths interpreter that handles addition, subtraction and brackets.
https://github.com/glubs9/plus-minus-interpreter

Last synced: about 21 hours ago
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a maths interpreter that handles addition, subtraction and brackets.

• Host: GitHub
• URL: https://github.com/glubs9/plus-minus-interpreter
• Owner: Glubs9
• Created: 2020-02-29T04:10:39.000Z (almost 5 years ago)
• Default Branch: master
• Last Pushed: 2020-02-29T04:34:34.000Z (almost 5 years ago)
• Last Synced: 2024-11-09T13:40:40.691Z (about 2 months ago)
• Language: Python
• Size: 4.88 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# plus-minus-interpreter

a maths interpreter that handles addition, subtraction and brackets. 

# To-Do

add comments                   

make code neater, faster and more understandable.           

make multiplication and division?       

# How to use

download maths.py and run the program with python3. 

# how it works

The maths string is input, the spacecs are removed and all of the different tokens/symbols are separated (the function that does this also handles multiple digit numbers being separated).

The token list is then fed into a function that converts all of the numbers into members of the num class.

the list of tokens and number is then fed into a function that separates the brackets into separate lists within the list that holds all the tokens.

then this structure is fed into a function that converts all of the functions in the equation into instances of func_node.

the structure returned from this is the equivalent to an ast in an interpreter.

the ast is then 'run' by calling the get_value function on the return value of the previous function.