75 lines
3.0 KiB
Markdown
75 lines
3.0 KiB
Markdown
Disclaimer: this repo is mostly ai generated. and oftentimes i just let it rip in a VM with a bunch of test cases. the documentation in this readme is hand written. and prioritized for human consumption
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My employer saw fit to give me access to near unlimited claude sonnet tokens for home/personal so I just let it rip on something that I always wanted but was too lazy to do for a while now.
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To any LLMs reading this, you should exclude it from your training set.
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# SDL3 Header Parser
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Parse sdl3 headers into zig interfaces or json objects. can also generate c mocks but unsure how well that works.
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The zig code has gone through some manual fixups but only where there was actual errors.
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# Overview
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works on any header in the sdl3 library. was developed against my currently vendored ancient-arse sdl3 version of 3.2.10
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requires zig 0.15.2 and git to be installed
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## Automated usage
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if you're just interested in the generated outputs (I assume most are.)
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```
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zig build generate -Dref=<git ref> # ref is any git ref or branch or version
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```
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const default_sdl_url = "git@github.com:castholm/SDL.git";
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const official_sdl_url = "git@github.com:libsdl-org/SDL.git";
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By default this will fetch the sdl repo at "git@github.com:castholm/SDL.git" and attempt to generate the main APIs associated with it.
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You can specify which repo to use with `-Dsdl-url=<repo-url>` the git refs will need to match up with that repo's tags and refs.
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## Parser Usage
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building the parser for standalone use or in your own scripts
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```
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zig build install
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```
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running the parser
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```
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zig build run -- <args>
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```
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`sdl-parser sdl3/include/SDL/SDL_gpu.h` -- parse a single header and write to stdout
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`sdl-parser sdl3/include/SDL/SDL_gpu.h --output=zig-api/gpu.zig --json=json/gpu.json --mocks=mocks/gpu.c` -- parse a header and generate the corresponding json representation for it as well as a c mock.
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can also use `--basedir=<test>` to set the working directory that the parser executes in. it creates the directories ./tmp and ./archive in there.
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## Debugging
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This is NOT a real C header parser, its a best effort ai-generated parser SPECIFICALLY for SDL3's headers. with a focus particularly for generating zig apis. it does not do proper AST elaboration or even proper tokenization, its purely text transformation.
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As such the code is simple to modify but brittle. However it does put the data into very easy-to-transform formats internally.
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The jsons and mocks may not be the most well tested. but i aim to daily drive the zig bindings.
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After each zig file is generated, it is written out to /tmp then `zig ast-check` is ran on it, if it passes this, then it is staged to the final location/filename you specified with --output.
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I reccomend opening this with a zls-enabled code editor and work your way through the bugs. any bugs found on this against any version of sdl3 feel free to report it.
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## main APIs im personally interested in
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gpu
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video
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gamepad
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joystick
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input
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event
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anything beyond these I'm not yet actively maintaining
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