Does ghostty support wasm?

does ghostty support wasm?

Yes! Ghostty does support WebAssembly (WASM). Here's what I found:

##WASM Support Summary

1. VT Library as WASM Module: Ghostty can compile its terminal library (libghostty-vt) to WebAssembly. You can build it with:

   zig build lib-vt -Dtarget=wasm32-freestanding
   

2. WebAssembly Examples: The codebase includes two interactive WebAssembly examples:

   • SGR Parser Example (example/wasm-sgr/) - Demonstrates parsing terminal SGR (Select Graphic Rendition) sequences
   • Key Encoder Example (example/wasm-key-encode/) - Shows encoding key events into terminal escape sequences

3. WASM-Specific APIs: Ghostty provides a complete WebAssembly API with memory management functions, including:

   • ghostty_wasm_alloc_opaque() / ghostty_wasm_free_opaque()
   • ghostty_wasm_alloc_u8_array() / ghostty_wasm_free_u8_array()
   • ghostty_wasm_alloc_sgr_attribute() / ghostty_wasm_free_sgr_attribute()
   • And several others for various data types

4. Documentation: The WASM API is documented in include/ghostty/vt/wasm.h, with examples showing how to interact with the WebAssembly module from JavaScript.

5. Browser Support: The WASM target is specifically configured for browser environments with canvas-based rendering capabilities.

So Ghostty's terminal library has first-class WASM support primarily for web-based use cases where you need terminal parsing/encoding functionality in the browser.