fd1eaaf · helix · git.iko.soy

git.iko.soy/helix

Add :tree-sitter-scopes, useful when developing indents.toml

commitfd1eaafff57fb40dd0e504c3d5fd5e8abe14b5f5 authorBlaž Hrastnik <blaz@mxxn.io> dateFri 13 Aug 2021, 13:15 (5 years ago) parent88cc0f8

2 files changed+42

compare with master

unifiedsplit

helix-core/src/indent.rs+21 helix-term/src/commands.rs+21

helix-core/src/indent.rs+21

@@ -313,6 +313,27 @@ pub fn suggested_indent_for_pos(

313313 }

314314}

315315

316+pub fn get_scopes(syntax: Option<&Syntax>, text: RopeSlice, pos: usize) -> Vec<&'static str> {

317+ let mut scopes = Vec::new();

318+ if let Some(syntax) = syntax {

319+ let byte_start = text.char_to_byte(pos);

320+ let node = match get_highest_syntax_node_at_bytepos(syntax, byte_start) {

321+ Some(node) => node,

322+ None => return scopes,

323+ };

324+

325+ scopes.push(node.kind());

326+

327+ while let Some(parent) = node.parent() {

328+ scopes.push(parent.kind())

329+ }

330+ }

331+

332+ scopes.reverse();

333+

334+ return scopes;

335+}

336+

316337#[cfg(test)]

317338mod test {

318339 use super::*;

helix-term/src/commands.rs+21

@@ -1883,6 +1883,20 @@ mod cmd {

18831883 doc.reload(view.id)

18841884 }

18851885

1886+ fn tree_sitter_scopes(

1887+ cx: &mut compositor::Context,

1888+ _args: &[&str],

1889+ _event: PromptEvent,

1890+ ) -> anyhow::Result<()> {

1891+ let (view, doc) = current!(cx.editor);

1892+ let text = doc.text().slice(..);

1893+

1894+ let pos = doc.selection(view.id).primary().cursor(text);

1895+ let scopes = indent::get_scopes(doc.syntax(), text, pos);

1896+ cx.editor.set_status(format!("scopes: {:?}", &scopes));

1897+ Ok(())

1898+ }

1899+

18861900 pub const TYPABLE_COMMAND_LIST: &[TypableCommand] = &[

18871901 TypableCommand {

18881902 name: "quit",

@@ -2114,6 +2128,13 @@ mod cmd {

21142128 doc: "Discard changes and reload from the source file.",

21152129 fun: reload,

21162130 completer: None,

2131+ },

2132+ TypableCommand {

2133+ name: "tree-sitter-scopes",

2134+ alias: None,

2135+ doc: "Display tree sitter scopes, primarily for theming and development.",

2136+ fun: tree_sitter_scopes,

2137+ completer: None,

21172138 }

21182139 ];

21192140