This is my public record of the work done in classpert course on making your own language
First week is mainly introduction to how lua works and playing around with lpeg (a lua library for PEG parsing) by creating a grammar to handle numerical computations. Left it with some basic vector operations and factorial as an extra
We start to delve into building an AST from parsing, and compiling
The interpreter now is a bit more intelligent so there is a very simple repl which can now receive files and expressions. It now allows for basic arithmetic and comparison.
# This will execute a file with the compiler
./week-2/repl.lua -f ./week-2/ex1.sel # returns 6 nothing fancy
# You can run the repl by executing it without arguments
./week-2/repl.lua
# Or execute an argument with the `e` flag
./week-2/repl.lua -e "3 + 3" # returns 6 like before
# To enable tracing just pass --trace as a flag
This week I started with trying to build a PEG parser in Odin, so far without much success so far, you
can find it at my repo if you are curious. I reorganized the repository to
make the language utility executable. I updated my .zshrc with the path to the directory and renamed repl.lua to bapl.
Now you can execute everything like this
# This will execute a file with the compiler
bapl -f <somefile>
# You can run the repl by executing it without arguments
bapl
# Or execute an argument with the `e` flag
bapl -e "3 + 3" # returns 6 like before
# To enable tracing just pass --trace as a flag
To verify the interpreter is working you can run bapl --check week-3 and it will run the tests for that week
- Variables
- Statements
- Assignments
- Block statements
- Return statements
- Print statement
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