[Tutor] syntax parsing and ast

[Flynn, Stephen (Life & Pensions)]

There are a number of parsers already built as libraries - I strongly recommend you take a look at some of them ,have a play and see which one suits your application.

A pretty comprehensive list is kept (up-to-date too) on Github in the webmaven/python-parsing-tools repo.

S.

-----Original Message-----
From: Tutor <tutor-bounces+steve.flynn=capita.co.uk at python.org> On Behalf Of Nathan Smith
Sent: Thursday, November 3, 2022 5:35 PM
To: tutor <tutor at python.org>
Subject: [Tutor] syntax parsing and ast

**EXTERNAL**

Hi guys,


I'm hoping someone can give me direction here (this is not to do with my main project which I mentioned a little while ago and turned out to be unrelated to what I suspected) typical.


This time I want to parse code of another language into python.

It's not a mainstream language and is relatively simple in that in that it has only a couple of rules:

1. Everything can be a considered a function.

2. There is a small number of builtins (about 50 in total).

3. It uses spaces to separate arguments, unless a space is needed in which case the argument is inclosed in brackets like so: {arg with spaces} {arg 2 with spaces}


I want to pass this into some objects that would allow a tree like so:

main

   main.func1

   main.func2

main2:

   main.if

     main.func4


I was thinking ast maybe be the way to go about this, and perhaps rejex for syntax matching, but beyond that I may need some pointers.


thanks in advance for anything you can offer in the way of help.

--

Best Wishes,

Nathan Smith, BSC


My Website: https://nathantech.net


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