fix: keep large-file editing responsive

Bound synchronous full-source syntax parsing, cache dirty comparisons, edit ordinary inline changes in place, retain changed-row undo history, and buffer atomic saves. Skip repository snapshots beyond existing worker limits before copying their text.
2026-10-16 21:14:16 +02:00
parent 02d1422a04
commit adbd2c3f81
13 changed files with 639 additions and 55 deletions
@@ -590,6 +590,8 @@ config.bind "leader f", config.core.follow_link

 Buffers highlight automatically using [Tree-sitter](https://tree-sitter.github.io/tree-sitter/) and compiled-in grammar/query packages. The selected language set is Rust, Ruby, Python, JSON, Bash, Makefile, Markdown, JavaScript/JSX, TypeScript/TSX, HTML, CSS, YAML, TOML, C, C++, Go, Zig (`.zig`), and Honey (`.hon`). Detection uses filename/extension or the in-memory first-line shebang, including common special filenames such as Makefile, Gemfile, and Cargo.lock; no file reread occurs. Unsupported formats use the normal foreground. The detected language appears in status, and save-as redetects it.

+Files remain editable above the syntax budget: sources over 1 MiB, or with any line over 64 KiB, use plain text and show the reason in the language status. Syntax highlighting resumes automatically after shrinking below both limits. This avoids building a full parse tree for huge generated files; navigation, search, selections, undo/redo, and saving remain available.
+
 Colors retain the terminal palette: comments dark gray, strings green, keywords magenta, numbers yellow, types/markup cyan, and functions light blue. Grammar queries handle multiline/nested constructs, even when their opening is above the viewport. Markdown uses its inline grammar and named fenced-code injections; HTML script/style content uses JavaScript/CSS. Known tagged-template and raw-string injections use the same selected grammar registry; unknown injected languages retain host highlighting or plain text. Highlighting styles whole graphemes and expanded tab cells; partially clipped wide placeholders remain unchanged. Search, Visual selections, and secondary carets retain foreground/background precedence.

 Honey uses its bundled grammar and highlight queries, including declarations, primitive types, literals, and comments. Markdown fences accept `honey`, `honeylang`, or `hon`; the language ID is `honey`.