Spellchecking

[Bzero]

Typstwriter should offer spellchecking.

[Bzero]

Spellchecking turns out to be harder to implement than I originally anticipated. It needs to be syntax-aware to be usable, however the pygments typst lexer currently doesn't distinguish precisely enough between text and other elements of the code.

Possibly tree-sitter-typst could be used to get a syntax tree which would allow to spell check only the text parts of the code.

[Bzero]

Harper may be a good candidate library for adding spellchecking to Typstwriter. It is not only a spell checker but also offers additional grammar and style checkers and it has builtin support for handling typst. It is written in Rust and misses python bindings but on may get away with a relatively thin wrapper to make it usable. Harper currently only supports the english language.