Note - the version is in the form episode.minutes.seconds (seconds approximate) as how far I have gotten
on the YouTube playlist
A translation of David Callanan/CodePulse's project and YouTube Series Make YOUR OWN Programming Language in Python into C++. The Python code is at https://github.com/davidcallanan/py-myopl-code
Thanks to the {fmt} library for string formatting
Note - If you are on a nix repl with the correct dependencies (see replit.nix)
then you count as having {fmt} installed
Also note - $ denotes a shell command (e.g $ make means run the command
make in a shell)
If you have {fmt} installed,
then to compile run $ make CXXFLAGS=-DHAVE_SYS_FMT LDFLAGS=-lfmt.
This instructs it to include the system {fmt} headers and the system libfmt.so.
Then to run, it's just $ ./run/myopl
If you do not have {fmt} installed then you can just do $ make which includes
the {fmt} headers that are in libs/fmt and links with libs/fmt/bin/libfmt.so
Then, to run you need to tell the runtime linker/loader
where libfmt.so is before running the binary by adding the directory
with libfmt.so to $LD_LIBRARY_PATH (e.g $ export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:libs/fmt/bin)
before doing $ ./run/myopl
If you do not have {fmt} installed and don't want to or can't link against
libs/fmt/bin/libfmt.so, then you can use {fmt} with header-only mode by
running $ make CXXFLAGS=-DFMT_HEADER_ONLY, but
be aware this may take longer to compile.
If you are on Windows or a Mac, then good luck as I have no idea what you would do,
but I would start by either trying it with header-only mode or building {fmt} yourself
(see https://fmt.dev/latest/usage.html#building-the-library)
Lastly, by default it will make a debug build, to disable this run $ make DEBUG=
as well as the other flags for make that hopefully you figured out above.
To extract the .tar.gz file - $ tar xzvf myopl.tar.gz
To extract the .tar.xz file - $ tar xJvf myopl.tar.xz