Unnamed repository; edit this file 'description' to name the repository.
Show all active scopes in :tree-sitter-highlight-name
Previously the command only showed the top of the stack of highlights.
Now it shows all active highlights under the cursor, comma separated.
| -rw-r--r-- | helix-term/src/commands/typed.rs | 80 |
1 files changed, 39 insertions, 41 deletions
diff --git a/helix-term/src/commands/typed.rs b/helix-term/src/commands/typed.rs index 2013a9d8..0f0165a6 100644 --- a/helix-term/src/commands/typed.rs +++ b/helix-term/src/commands/typed.rs @@ -1672,54 +1672,52 @@ fn tree_sitter_highlight_name( _args: Args, event: PromptEvent, ) -> anyhow::Result<()> { - use helix_core::syntax::Highlight; - - fn find_highlight_at_cursor(editor: &Editor) -> Option<Highlight> { - let (view, doc) = current_ref!(editor); - let syntax = doc.syntax()?; - let text = doc.text().slice(..); - let cursor = doc.selection(view.id).primary().cursor(text); - let byte = text.char_to_byte(cursor) as u32; - let node = syntax.descendant_for_byte_range(byte, byte)?; - // Query the same range as the one used in syntax highlighting. - let range = { - // Calculate viewport byte ranges: - let row = text.char_to_line(doc.view_offset(view.id).anchor.min(text.len_chars())); - // Saturating subs to make it inclusive zero indexing. - let last_line = text.len_lines().saturating_sub(1); - let height = view.inner_area(doc).height; - let last_visible_line = (row + height as usize).saturating_sub(1).min(last_line); - let start = text.line_to_byte(row.min(last_line)) as u32; - let end = text.line_to_byte(last_visible_line + 1) as u32; - - start..end - }; - - let loader = editor.syn_loader.load(); - let mut highlighter = syntax.highlighter(text, &loader, range); - - while highlighter.next_event_offset() != u32::MAX { - let start = highlighter.next_event_offset(); - highlighter.advance(); - let end = highlighter.next_event_offset(); - - if start <= node.start_byte() && end >= node.end_byte() { - return highlighter.active_highlights().next_back(); - } - } - - None - } - if event != PromptEvent::Validate { return Ok(()); } - let Some(highlight) = find_highlight_at_cursor(cx.editor) else { + let (view, doc) = current_ref!(cx.editor); + let Some(syntax) = doc.syntax() else { return Ok(()); }; + let text = doc.text().slice(..); + let cursor = doc.selection(view.id).primary().cursor(text); + let byte = text.char_to_byte(cursor) as u32; + // Query the same range as the one used in syntax highlighting. + let range = { + // Calculate viewport byte ranges: + let row = text.char_to_line(doc.view_offset(view.id).anchor.min(text.len_chars())); + // Saturating subs to make it inclusive zero indexing. + let last_line = text.len_lines().saturating_sub(1); + let height = view.inner_area(doc).height; + let last_visible_line = (row + height as usize).saturating_sub(1).min(last_line); + let start = text.line_to_byte(row.min(last_line)) as u32; + let end = text.line_to_byte(last_visible_line + 1) as u32; + + start..end + }; + + let loader = cx.editor.syn_loader.load(); + let mut highlighter = syntax.highlighter(text, &loader, range); + let mut highlights = Vec::new(); + + while highlighter.next_event_offset() <= byte { + let (event, new_highlights) = highlighter.advance(); + if event == helix_core::syntax::HighlightEvent::Refresh { + highlights.clear(); + } + highlights.extend(new_highlights); + } - let content = cx.editor.theme.scope(highlight).to_string(); + let content = highlights + .into_iter() + .fold(String::new(), |mut acc, highlight| { + if !acc.is_empty() { + acc.push_str(", "); + } + acc.push_str(cx.editor.theme.scope(highlight)); + acc + }); let callback = async move { let call: job::Callback = Callback::EditorCompositor(Box::new( |