fd1eaaf · helix · git.iko.soy

git.iko.soy/helix

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

fd1eaafBlaž Hrastnik5 years ago

helix-core/src/indent.rs+21

compare with master

unifiedsplit

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

313 }

314}

315

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+

316#[cfg(test)]

337#[cfg(test)]

317mod test {

338mod test {

318 use super::*;

339 use super::*;

helix-term/src/commands.rs+21

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

1883 doc.reload(view.id)

1884 }

1885

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+

1886 pub const TYPABLE_COMMAND_LIST: &[TypableCommand] = &[

1900 pub const TYPABLE_COMMAND_LIST: &[TypableCommand] = &[

1887 TypableCommand {

1901 TypableCommand {

1888 name: "quit",

1902 name: "quit",

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

2114 doc: "Discard changes and reload from the source file.",

2128 doc: "Discard changes and reload from the source file.",

2115 fun: reload,

2129 fun: reload,

2116 completer: None,

2130 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,

2117 }

2138 }

2118 ];

2139 ];

2119

2140