tlc: wire editor Options menu toggles in F9 menubar

Add ToggleAutoIndent, ToggleShowWhitespace, ToggleWordWrap,
ToggleSyntax, ToggleRelativeLines to EditorCmd enum and dispatch
them through dispatch_editor_cmd. The Options menu now has all
five toggles alongside Settings, making them discoverable via F9
in addition to their Alt-key shortcuts.

local/recipes/tui/tlc/source/src/editor/menubar.rs

@@ -67,6 +67,16 @@ pub enum EditorCmd {
     GotoBottom,
     /// Open settings dialog.
     Settings,
+    /// Toggle auto-indent (Alt-A).
+    ToggleAutoIndent,
+    /// Toggle visible whitespace (Alt-E).
+    ToggleShowWhitespace,
+    /// Toggle word wrap (Alt-W).
+    ToggleWordWrap,
+    /// Toggle syntax highlighting (Ctrl-S).
+    ToggleSyntax,
+    /// Toggle relative line numbers (Alt-N).
+    ToggleRelativeLines,
 }
 
 /// Outcome of a menu-bar key press.
@@ -217,7 +227,15 @@ impl EditorMenuBar {
             ),
             Menu::new(
                 "Options",
-                vec![MenuItem::item("Settings...", 's', EditorCmd::Settings)],
+                vec![
+                    MenuItem::item("Settings...", 's', EditorCmd::Settings),
+                    MenuItem::separator(),
+                    MenuItem::item("Auto-indent", 'a', EditorCmd::ToggleAutoIndent),
+                    MenuItem::item("Show whitespace", 'w', EditorCmd::ToggleShowWhitespace),
+                    MenuItem::item("Word wrap", 'p', EditorCmd::ToggleWordWrap),
+                    MenuItem::item("Syntax highlight", 'h', EditorCmd::ToggleSyntax),
+                    MenuItem::item("Relative line numbers", 'r', EditorCmd::ToggleRelativeLines),
+                ],
             ),
         ];
         Self {

local/recipes/tui/tlc/source/src/editor/mod.rs

@@ -952,9 +952,51 @@ bracket_flash: None,
                 self.prompt_input.clear();
                 self.mode = Mode::Prompt(PromptKind::GotoLine);
             }
+            EditorCmd::ToggleAutoIndent => {
+                let on = self.toggle_auto_indent();
+                self.message = Some(if on {
+                    "Auto-indent: ON".to_string()
+                } else {
+                    "Auto-indent: OFF".to_string()
+                });
+            }
+            EditorCmd::ToggleShowWhitespace => {
+                let on = self.toggle_show_whitespace();
+                self.message = Some(if on {
+                    "Show whitespace: ON".to_string()
+                } else {
+                    "Show whitespace: OFF".to_string()
+                });
+            }
+            EditorCmd::ToggleWordWrap => {
+                let on = self.toggle_word_wrap();
+                self.message = Some(if on {
+                    "Word wrap: ON".to_string()
+                } else {
+                    "Word wrap: OFF".to_string()
+                });
+            }
+            EditorCmd::ToggleSyntax => {
+                self.syntax_enabled = !self.syntax_enabled;
+                self.message = Some(if self.syntax_enabled {
+                    "Syntax: ON".to_string()
+                } else {
+                    "Syntax: OFF".to_string()
+                });
+            }
+            EditorCmd::ToggleRelativeLines => {
+                self.relative_lines = !self.relative_lines;
+                self.message = Some(if self.relative_lines {
+                    "Relative line numbers: ON".to_string()
+                } else {
+                    "Relative line numbers: OFF".to_string()
+                });
+            }
+            EditorCmd::Settings => {
+                self.message = Some("Settings dialog (TBD)".to_string());
+            }
             // Items not yet wired: New, Open, Save, SaveAs, Quit,
-            // Find, FindNext, FindPrev, Replace, BookmarkNext/Prev,
-            // GotoTop/Bottom, Settings.
+            // Find, FindNext, FindPrev, Replace, BookmarkNext/Prev.
             _ => {
                 self.message = Some(format!("F9: {:?} (not yet wired)", cmd));
             }