Add optional tree-sitter declaration context

1 files changed, 20 insertions, 0 deletions

diff --git a/src/builtins.zig b/src/builtins.zig
index c483482a..f4e22308 100644
--- a/src/builtins.zig
+++ b/src/builtins.zig
@@ -312,6 +312,26 @@ pub const FontSel = struct {
     }
 };
 
+pub const TreeContext = struct {
+    pub const enabled = pardes.syntax.enabled;
+    pub const takes_arg = true;
+
+    pub fn run(c: Ctx) void {
+        if (comptime !enabled) unreachable;
+        if (!panes.File.supportsContext(c.pane)) return;
+        const file = &c.pane.file.?;
+        const arg = std.mem.trim(u8, c.arg orelse "", " \t\r\n");
+        const on = if (arg.len == 0) !file.tree_context else if (std.mem.eql(u8, arg, "on")) true else if (std.mem.eql(u8, arg, "off")) false else {
+            c.p.reportError(c.id, "TreeContext", error.ExpectedOnOrOff);
+            return;
+        };
+        file.tree_context = on;
+        file.syntax_dirty = true;
+        c.pane.wrap_n = 0;
+        c.pane.context_rows = 0;
+    }
+};
+
 pub const PdfFit = struct {
     pub const enabled = pardes.pdf_enabled;
     pub fn run(c: Ctx) void {