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Three Algorithms for YSH Syntax Highlighting
oils.vim - Vim syntax highlighting for Oils
Recognizing most languages (Python, JavaScript, C) with Tree-sitter requires writing C code in an external scanner, and the same is true for YSH. After writing this Vim plugin for YSH, I wrote docs describing the "coarse parsing" algorithm, linked below. In Tree-sitter, Stage 2 is hard because recursive lexer modes require an external scanner, written in C. The C API is unusual because of incremental lexing and parsing.
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