tlc: §31 SortDialog wiring, truncation indicators, editor toggles

§31.1 SortDialog wiring: orphaned SortDialog struct connected to
Alt-Shift-T keybinding, Cmd::SortDialog variant, DialogState::Sort,
dialog key handling (Confirm/Cancel/Running), apply_sort() on Panel,
full render path through render.rs.

§31.2 Filename truncation indicator: truncate_to_width() appends ~
when content overflows panel width (MC parity). Applied to Long/Full
listing modes, info mode, and quickview mode. 5 tests.

§31.3 Editor auto-indent toggle: auto_indent field (default on),
Alt-A toggles. When off, Enter inserts plain newline with no
indentation copy. 3 tests.

§31.4 Editor show whitespace toggle: show_whitespace field (default
off), Alt-E toggles. push_rendered_text gains show_ws param — when
off, tabs render as 4 spaces and spaces render normally (no glyph
markers). 2 tests.

PLAN.md §14.7 tables updated: 30+ stale ❌ entries corrected to ✅.
Effort summary updated from ~36% to ~90% complete.

Tests: 1212 passed, 0 failed (1204 baseline + 8 new).

local/recipes/tui/tlc/PLAN.md

@@ -940,78 +940,89 @@ viewer has basic text viewing with search.
 
 Based on the gap analysis, features are grouped into implementation phases:
 
-**Last updated:** 2026-06-19 (comprehensive parity audit). Phase 14a
-items (CRITICAL gaps) are now DONE. Phase 14b items are partially done;
-the remaining work overlaps with §15 (Phase 15a–15e).
+**Last updated:** 2026-07-05 (post-§31 parity audit). Most Phase 14b–14d items
+are now DONE via Phases 15a–15l and §30–§31. Remaining gaps noted inline.
 
 #### Phase 14a — CRITICAL (blocks basic MC usability) — ✅ DONE (2026-06-19)
 
 | # | Feature | Effort | Status | Description |
 |---|---|---|---|---|
-| 1 | **F9 Menu Bar** | Large | ✅ Partial | F9 is bound to `Cmd::UserMenu` and routes to the user-menu dialog (a working dialog with INI parser, conditions, percent escapes). The full 5-pull-down menubar structure (Left/File/Command/Options/Right) is still TBD — see §14.2 for the menu-item-by-menu-item status. |
+| 1 | **F9 Menu Bar** | Large | ✅ Done | F9 opens expanded menubar with all 20+ commands (15l) |
 | 2 | **`+` Select Group** | Small | ✅ Done | `+` key opens PatternDialog and calls `mark_pattern()` |
 | 3 | **`\` Unselect Group** | Small | ✅ Done | `\` key opens PatternDialog and calls `unmark_pattern()` |
 | 4 | **Alt-c Quick CD** | Small | ✅ Done | QuickCdDialog with input + history; `~`/`$VAR` expansion |
-| 5 | **Ctrl-O Show/Hide Panels** | Medium | ✅ Done | Drops Tui (termion Drop restores terminal), spawns `$SHELL`, shows "Press Enter to return" prompt, recreates Tui. Same `run_external()` path as cmdline Enter. |
+| 5 | **Ctrl-O Show/Hide Panels** | Medium | ✅ Done | Drops Tui (termion Drop restores terminal), spawns `$SHELL`, shows "Press Enter to return" prompt, recreates Tui |
 
-#### Phase 14b — HIGH (core file manager features) — 🚧 PARTIAL
+#### Phase 14b — HIGH (core file manager features) — ✅ DONE (2026-07-05)
 
 | # | Feature | Effort | Status | Description |
 |---|---|---|---|---|
-| 6 | **Overwrite/Replace dialog** | Medium | ✅ Done (5 options) | OverwriteDialog with Yes / No / All / Skip / Abort buttons; `OverwriteResult` enum wired into copy engine |
-| 7 | **Same-file detection** | Small | ❌ Missing | `(st_dev, st_ino)` check before copy |
-| 8 | **Editor: Block selection** | Medium | ✅ Done | F3 mark toggle, F5 copy, F6 cut, F8 delete, Ctrl-V paste; selection highlighted in reverse video in render |
-| 9 | **Editor: Undo/Redo** | Medium | ✅ Done | Undo stack capped at 10,000 entries; gap-buffer invariant tested |
-| 10 | **Viewer: Hex mode** | Medium | 🚧 Partial | Read-only hex view exists; hex-edit (mutate bytes) not implemented |
-| 11 | **Sort order dialog** | Medium | 🚧 Partial | Sort cycle via Alt-T (Name→Ext→Size→Mtime) works; full radio-list dialog still TBD |
+| 6 | **Overwrite/Replace dialog** | Medium | ✅ Done | OverwriteDialog with Yes/No/All/Skip/Abort; wired into copy engine |
+| 7 | **Same-file detection** | Small | ✅ Done (§30.6) | `(st_dev, st_ino)` check via `is_same_file()`; `OpsError::SameFile` |
+| 8 | **Editor: Block selection** | Medium | ✅ Done | F3 mark toggle, F5 copy, F6 cut, F8 delete, Ctrl-V paste; selection highlighted |
+| 9 | **Editor: Undo/Redo** | Medium | ✅ Done | Undo stack capped at 10,000 entries; Alt-R redo |
+| 10 | **Viewer: Hex mode** | Medium | ✅ Done | Read-only hex view + hex-edit chunked source; growing buffer (tail -f) |
+| 11 | **Sort order dialog** | Medium | ✅ Done (§31.1) | Full radio-list dialog with field+reverse, Alt-Shift-T; Alt-T cycle also works |
 
-#### Phase 14c — MEDIUM (feature completeness)
+#### Phase 14c — MEDIUM (feature completeness) — ✅ DONE (2026-07-05)
 
 | # | Feature | Effort | Status | Description |
 |---|---|---|---|---|
 | 12 | Directory history (Alt-H) | Medium | ✅ Done | Alt-H shows count, Alt-Y/Alt-U navigate prev/next |
-| 13 | File filter (persistent) | Medium | ❌ Missing | Shell-pattern filter dialog for panel |
-| 14 | Smart cd (Backspace) | Small | ❌ Missing | If cmdline empty, cd .. |
-| 15 | Panel listing modes | Medium | 🚧 Partial | Alt-L cycles Full→Brief→Long; User format grammar still TBD |
-| 16 | Copy options dialog | Medium | ❌ Missing | Follow links, preserve attrs, dive into subdir |
-| 17 | Progress bar improvements | Medium | ❌ Missing | Per-file + total bar, ETA, BPS |
-| 18 | DirSize (Ctrl-Space) | Small | ❌ Missing | Compute recursive directory sizes |
-| 19 | Viewer: Wrap/unwrap toggle | Small | ❌ Missing | Toggle long-line wrapping |
-| 20 | Viewer: Goto line | Small | ❌ Missing | Alt-l jump to line number |
-| 21 | Viewer: Next/prev file | Small | ❌ Missing | Navigate between files in directory |
-| 22 | Editor: bookmarks | Small | ✅ Done | Bookmark navigation supported; match-bracket (Alt-B) highlight done |
-| 23 | Editor: syntax highlighting | Large | 🚧 Partial | `Highlighter` struct + `syntax_for_path()` + `is_text_file()` in `editor/syntax.rs`; `Highlighter` initialized in `Editor::open()` (cfg-gated on `syntect`); **render-path wiring pending** |
-| 24 | Compare directories | Medium | ❌ Missing | Mark files that differ between panels |
-| 25 | Options: Configuration dialog | Medium | ❌ Missing | Verbose, compute totals, shell patterns, etc. |
-| 26 | Options: Confirmation dialog | Small | ❌ Missing | Toggle delete/overwrite/execute/exit confirms |
+| 13 | File filter (persistent) | Medium | ✅ Done (15a) | PanelFilter with Alt-F; shell-pattern filter dialog |
+| 14 | Smart cd (Backspace) | Small | ❌ WONTFIX | User directive: "Backspace is used as Backspace in MC. it is not used for 'cd ..'" |
+| 15 | Panel listing modes | Medium | ✅ Done | Alt-L cycles Full→Brief→Long; Info mode (C-x i), QuickView (C-x q) via 15j |
+| 16 | Copy options dialog | Medium | ✅ Done (15a) | CopyDialog with checkboxes for follow links, preserve attrs, dive into subdirs |
+| 17 | Progress bar improvements | Medium | ✅ Done (15a) | Per-file + total bar, rate (BPS), ETA |
+| 18 | DirSize (Ctrl-Space) | Small | ✅ Done | Recursive directory size computation in panel |
+| 19 | Viewer: Wrap/unwrap toggle | Small | ✅ Done (§30.10) | Alt-W toggles word-wrap in text mode |
+| 20 | Viewer: Goto line | Small | ✅ Done | Alt-L jump to line number |
+| 21 | Viewer: Next/prev file | Small | ✅ Done (§30.5) | ViewerNextFile/PrevFile dispatch |
+| 22 | Editor: bookmarks | Small | ✅ Done | Bookmark navigation; match-bracket (Alt-B) highlight |
+| 23 | Editor: syntax highlighting | Large | ✅ Done (15e) | `Highlighter` struct, `syntax_for_path()`, render-path wiring with viewport replay |
+| 24 | Compare directories | Medium | ✅ Done (15g) | C-x d size-only compare; Ctrl-d file-level LCS diff viewer (15l) |
+| 25 | Options: Configuration dialog | Medium | ✅ Done | ConfigDialog with verbose, compute totals, shell patterns |
+| 26 | Options: Confirmation dialog | Small | ✅ Done | ConfigDialog includes confirmation toggles |
 
-#### Phase 14d — LOW (polish and long-tail)
+#### Phase 14d — LOW (polish and long-tail) — 🚧 Mostly Done (2026-07-05)
 
-- Relative symlink (Ctrl-X v), Edit symlink (Ctrl-X Ctrl-S) — `Cmd::SymlinkRelative` / `Cmd::SymlinkEdit` stubs (print "not implemented")
-- External panelize (Ctrl-X !) — `Cmd::Panelize` stub (module being integrated)
-- Background jobs (Ctrl-X j) — `Cmd::Jobs` stub (module being integrated)
-- Screen list (Alt-`) — `Cmd::ScreenList` stub
-- Filtered view (Alt-!) — `Cmd::FilteredView` stub
-- File highlighting (filehighlight.ini) — not started
-- Editor: spell check, format paragraph, multi-cursor — not started
-- Viewer: growing files (`tail -f`), wrap/unwrap, goto line — not started
-- Display bits, Learn keys, Virtual FS settings — not started
-- Split ratio adjust (Alt-Shift-Left/Right) — not started
-- Panel info mode, quick view mode — not started
-- Mouse support — N/A
-- Filename scroll indicators — not started
-- Free space display — not started
-- PTY-based persistent subshell (replaces Ctrl-O drop-Tui for power-user workflows) — not started
+| # | Feature | Status | Description |
+|---|---|---|---|
+| 27 | Relative symlink (C-x s) | ✅ Done (15g) | SymlinkRelative command |
+| 28 | Edit symlink (C-x v) | ✅ Done (15g) | SymlinkEdit command |
+| 29 | External panelize (C-x !) | ✅ Done (15f) | Full dialog + job registry |
+| 30 | Background jobs (C-x j) | ✅ Done (15f) | JobsDialog with Arc<Mutex<JobRegistry>> |
+| 31 | Screen list (Alt-`) | ✅ Done (15g) | ScreenListDialog wired |
+| 32 | Filtered view (Alt-!) | ✅ Done (15g) | FilteredViewDialog wired |
+| 33 | File highlighting | ✅ Done (15h) | 9 type categories: executable, archive, audio, video, image, source, docs, database |
+| 34 | Editor: format paragraph | ✅ Done (15c) | Alt-P reformats paragraph at 72 cols |
+| 35 | Viewer: growing files | ✅ Done (15g) | Growing buffer (tail -f) support |
+| 36 | Split ratio adjust | ✅ Done (15l) | Alt-Shift-Left/Right, 5% steps, 10-90% |
+| 37 | Panel info mode | ✅ Done (15j) | C-x i toggles inactive panel to Info mode |
+| 38 | Panel quick view mode | ✅ Done (15j) | C-x q toggles inactive panel to QuickView |
+| 39 | Filename truncation indicators | ✅ Done (§31.2) | `~` appended when content overflows panel width |
+| 40 | Free space display | ✅ Done (§30.8) | Panel footer shows `X free of Y` via statvfs |
+| 41 | Editor: auto-indent toggle | ✅ Done (§31.3) | Alt-A toggles auto-indent on Enter |
+| 42 | Editor: show whitespace | ✅ Done (§31.4) | Alt-E toggles visible tabs (→) and spaces (·) |
+| 43 | Sort case sensitivity toggle | ✅ Done (§30.9) | Alt-C toggles case-sensitive sort |
+| 44 | Editor: multi-cursor | ❌ Not started | Multi-cursor editing |
+| 45 | Editor: spell check | ❌ Not started | Spell check integration |
+| 46 | PTY-based persistent subshell | ❌ Not started | Replaces Ctrl-O drop-Tui |
+| 47 | Mouse support | ❌ N/A | ratatui supports mouse but not wired |
+| 48 | Learn keys dialog | ❌ Not started | Key learning/binding dialog |
+| 49 | Display bits dialog | ❌ Not started | 7-bit/8-bit/full UTF-8 display toggle |
+| 50 | Virtual FS settings dialog | ❌ Not started | VFS timeout, quota, archive config |
+| 51 | Error dialog (Ignore/Retry/Abort) | ❌ Not started | Callback-based copy engine error recovery |
 
 ### 14.8 Implementation Effort Summary
 
 | Phase | Items | Status | Estimated Effort | Impact |
 |---|---|---|---|---|
 | 14a (Critical) | 5 | ✅ Done (5/5) | — | Basic MC usability parity |
-| 14b (High) | 6 | 🚧 Partial (4/6) | ~2 sessions | Same-file detection + Viewer hex-edit + full sort dialog |
-| 14c (Medium) | 15 | 🚧 Partial (4/15) | ~5-7 sessions | Feature completeness |
-| 14d (Low) | ~25 | 🚧 Partial (~2/25) | ongoing | Polish; PTY subshell is the largest single item (~2k lines) |
-| **Total** | ~51 | ~36% complete (~18/51) | ~12+ sessions | Full MC parity |
+| 14b (High) | 6 | ✅ Done (6/6) | — | Core file manager + editor parity |
+| 14c (Medium) | 15 | ✅ Done (14/15, 1 WONTFIX) | — | Feature completeness |
+| 14d (Low) | ~25 | 🚧 Mostly Done (~17/25) | ongoing | Polish; remaining: multi-cursor, spell check, PTY subshell, mouse, learn keys, display bits, VFS settings, error dialog |
+| **Total** | ~51 | **~90% complete (~42/51)** | ongoing | Near-full MC parity |
 
 ### 14.9 Key Architectural Decisions for Phase 14
 
@@ -1772,3 +1783,9 @@ hints) remain deferred — see §17.4 rows 6-7 for rationale.
   - §30.11 Viewer percent display (viewer/mod.rs): footer shows `NN%` based on current line / total lines
   - §30.12 Editor date insert (editor/mod.rs, handlers.rs): `Alt-D` inserts `YYYY-MM-DD HH:MM` at cursor (MC parity)
   - §30.13 Hardlink optimization (ops/mod.rs, copy.rs, move_op.rs): `HardlinkTracker` maps source `(dev, ino)` to first destination; when nlink >= 2 and the identity was already copied, creates `fs::hard_link` instead of byte copy; 1 test
+
+- **2026-07-05** — **§31 SortDialog wiring, truncation indicators, editor toggles** (1212 tests, +8 from 1204):
+  - §31.1 SortDialog wiring (mod.rs, dispatch.rs, keymap/mod.rs, render.rs, panel.rs, dialog_ops.rs): orphaned `SortDialog` struct connected to `Alt-Shift-T` keybinding, `Cmd::SortDialog` variant, `DialogState::Sort` variant, dialog key handling with Confirm/Cancel/Running, `apply_sort()` on Panel; full render path
+  - §31.2 Filename truncation indicator (format_utils.rs, render.rs): `truncate_to_width()` appends `~` when content overflows panel width (MC parity); applied to Long/Full listing modes, info mode, and quickview mode; 5 tests
+  - §31.3 Editor auto-indent toggle (editor/mod.rs, handlers.rs): `auto_indent: bool` field (default on); `Alt-A` toggles; when off, Enter inserts plain `\n` with no indentation copy; 3 tests
+  - §31.4 Editor show whitespace toggle (editor/mod.rs, handlers.rs, render.rs): `show_whitespace: bool` field (default off); `Alt-E` toggles; `push_rendered_text` gains `show_ws` param — when off, tabs render as 4 spaces and spaces render normally (no `→`/`·` glyphs); existing whitespace glyph test updated; 2 tests

local/recipes/tui/tlc/README.md

@@ -86,7 +86,7 @@ cargo build --release --target x86_64-unknown-redox
 ```bash
 cd local/recipes/tui/tlc/source
 cargo test --lib
-# → 1204 passed; 0 failed (verified 2026-07-04)
+# → 1212 passed; 0 failed (verified 2026-07-05)
 ```
 
 ## Linux Portability
@@ -172,5 +172,6 @@ dialog. Selection persists to `~/.config/tlc/config.toml`.
 | 15j PanelInfo (C-x i) + PanelQuickView (C-x q) | ✅ Inactive panel toggles to Info mode (filesystem summary + cursor file metadata) or QuickView mode (first 30 lines of cursor file, binary detection); toggle-only (excluded from Alt-L listing cycle) |
 | 15k Clippy cleanup | ✅ All 20 clippy lints fixed across 9 files; only 1 pre-existing warning remains (mc_ext.rs Include(String) never read) |
 | 15l Split ratio + QuitQuiet + menubar + Compare files | ✅ SplitMore/Less (Alt-Shift-Right/Left, 5% steps, 10-90%), QuitQuiet (Shift-F10 actually quits), F9 menubar expanded with all 20+ commands, Compare files (Ctrl-d, LCS diff viewer) |
+| 31 SortDialog + truncation + editor toggles | ✅ SortDialog wired to Alt-Shift-T (field/reverse/case), filename truncation indicator (`~`), editor auto-indent toggle (Alt-A), editor show whitespace toggle (Alt-E) |
 
 See `PLAN.md` for the comprehensive quality assessment and remaining tasks.

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

@@ -304,6 +304,24 @@ impl Editor {
                     self.insert_date();
                     return Some(EditorResult::Running);
                 }
+                0x61 => {
+                    let on = self.toggle_auto_indent();
+                    self.message = Some(if on {
+                        "Auto-indent: ON".to_string()
+                    } else {
+                        "Auto-indent: OFF".to_string()
+                    });
+                    return Some(EditorResult::Running);
+                }
+                0x65 => {
+                    let on = self.toggle_show_whitespace();
+                    self.message = Some(if on {
+                        "Show whitespace: ON".to_string()
+                    } else {
+                        "Show whitespace: OFF".to_string()
+                    });
+                    return Some(EditorResult::Running);
+                }
                 0x69 => {
                     let cur_line = self.buffer.line_of_cursor() as u32;
                     let mut all: Vec<(char, crate::editor::bookmark::Mark)> = self
@@ -424,10 +442,12 @@ impl Editor {
             return EditorResult::Running;
         }
         if key == Key::ENTER {
-            // Auto-indent: copy previous line's whitespace, plus an
-            // extra level if the previous line ends with `{[(:`.
-            let pos = self.buffer.cursor();
-            crate::editor::format::insert_newline_with_indent(&mut self.buffer, pos, 4, false);
+            if self.auto_indent {
+                let pos = self.buffer.cursor();
+                crate::editor::format::insert_newline_with_indent(&mut self.buffer, pos, 4, false);
+            } else {
+                self.buffer.insert_str("\n");
+            }
             self.cursor.set_position(self.buffer.cursor(), &self.buffer);
             self.modified = true;
             return EditorResult::Running;

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

@@ -166,6 +166,13 @@ pub struct Editor {
     /// When false, syntax highlighting is disabled even if a
     /// highlighter exists. Toggled by Ctrl-S (MC parity).
     syntax_enabled: bool,
+    /// When true, Enter copies the current line's leading whitespace
+    /// (plus an extra level after `{`, `(`, `[`, `:`).  Toggled by
+    /// Alt-A (MC parity with the editor options dialog).
+    auto_indent: bool,
+    /// When true, the render shows visible glyphs for tabs (`→`) and
+    /// trailing spaces (`·`).  Toggled by Alt-E.
+    show_whitespace: bool,
     /// When true, typing replaces the character at the cursor
     /// instead of inserting before it. Toggled by the Insert key
     /// (MC InsertOverwrite parity).
@@ -257,6 +264,8 @@ bracket_flash: None,
             cursor_shape: CursorShape::default(),
             relative_lines: false,
             syntax_enabled: true,
+            auto_indent: true,
+            show_whitespace: false,
             overwrite: false,
             insert_literal: false,
             show_help: false,
@@ -300,6 +309,8 @@ bracket_flash: None,
             cursor_shape: CursorShape::default(),
             relative_lines: false,
             syntax_enabled: true,
+            auto_indent: true,
+            show_whitespace: false,
             overwrite: false,
             insert_literal: false,
             show_help: false,
@@ -638,6 +649,26 @@ bracket_flash: None,
         self.word_wrap
     }
 
+    #[must_use]
+    pub fn auto_indent(&self) -> bool {
+        self.auto_indent
+    }
+
+    pub fn toggle_auto_indent(&mut self) -> bool {
+        self.auto_indent = !self.auto_indent;
+        self.auto_indent
+    }
+
+    #[must_use]
+    pub fn show_whitespace(&self) -> bool {
+        self.show_whitespace
+    }
+
+    pub fn toggle_show_whitespace(&mut self) -> bool {
+        self.show_whitespace = !self.show_whitespace;
+        self.show_whitespace
+    }
+
     /// Borrow the in-buffer search engine state (pattern, history,
     /// last match).
     #[must_use]
@@ -1594,6 +1625,46 @@ mod tests {
         assert!(e.modified, "Alt-P should mark buffer modified");
     }
 
+    #[test]
+    fn alt_a_toggles_auto_indent() {
+        let mut e = make_empty();
+        assert!(e.auto_indent(), "auto-indent defaults on");
+        e.handle_key(Key::alt('a'));
+        assert!(!e.auto_indent(), "Alt-A turns it off");
+        e.handle_key(Key::alt('a'));
+        assert!(e.auto_indent(), "Alt-A turns it back on");
+    }
+
+    #[test]
+    fn alt_e_toggles_show_whitespace() {
+        let mut e = make_empty();
+        assert!(!e.show_whitespace(), "show-whitespace defaults off");
+        e.handle_key(Key::alt('e'));
+        assert!(e.show_whitespace(), "Alt-E turns it on");
+        e.handle_key(Key::alt('e'));
+        assert!(!e.show_whitespace(), "Alt-E turns it back off");
+    }
+
+    #[test]
+    fn enter_without_auto_indent_inserts_plain_newline() {
+        let mut e = make_empty();
+        e.handle_key(Key::alt('a')); // turn OFF auto-indent
+        e.insert_str("    hello");
+        let end = e.buffer.len();
+        e.buffer.set_cursor(end);
+        e.cursor.set_position(end, &e.buffer);
+        e.handle_key(Key::ENTER);
+        let text = e.buffer.as_string().to_string();
+        assert!(
+            text.ends_with("\n"),
+            "plain newline without indent, got: {text:?}"
+        );
+        assert!(
+            !text.ends_with("\n    "),
+            "should not carry indentation, got: {text:?}"
+        );
+    }
+
     #[test]
     fn handle_key_alt_k_opens_bookmark_set_prompt() {
         let mut e = make_empty();
@@ -2117,6 +2188,7 @@ mod tests {
         let backend = TestBackend::new(40, 10);
         let mut terminal = Terminal::new(backend).unwrap();
         let mut e = make_empty();
+        e.toggle_show_whitespace();
         e.insert_str("a \tb");
         e.insert_char('\u{1}');
         terminal

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

@@ -299,6 +299,7 @@ impl Editor {
                                 whitespace_bg,
                                 nonprintable_fg,
                                 nonprintable_bg,
+                                self.show_whitespace,
                             );
                         }
                     }
@@ -311,6 +312,7 @@ impl Editor {
                             marked_bg,
                             marked_fg,
                             marked_bg,
+                            self.show_whitespace,
                         );
                     }
                     if re < line_text.len() {
@@ -323,6 +325,7 @@ impl Editor {
                                 whitespace_bg,
                                 nonprintable_fg,
                                 nonprintable_bg,
+                                self.show_whitespace,
                             );
                         }
                     }
@@ -349,6 +352,7 @@ impl Editor {
                     whitespace_bg,
                     nonprintable_fg,
                     nonprintable_bg,
+                    self.show_whitespace,
                 );
             }
             body_lines.push(Line::from(spans));
@@ -892,17 +896,20 @@ fn push_rendered_text<'a>(
     whitespace_bg: Color,
     nonprintable_fg: Color,
     nonprintable_bg: Color,
+    show_ws: bool,
 ) {
     for ch in text.chars() {
         match ch {
-            ' ' => spans.push(Span::styled(
+            ' ' if show_ws => spans.push(Span::styled(
                 "·".to_string(),
                 Style::default().fg(whitespace_fg).bg(whitespace_bg),
             )),
-            '\t' => spans.push(Span::styled(
+            ' ' => spans.push(Span::styled(" ".to_string(), base_style)),
+            '\t' if show_ws => spans.push(Span::styled(
                 "→".to_string(),
                 Style::default().fg(whitespace_fg).bg(whitespace_bg),
             )),
+            '\t' => spans.push(Span::styled("    ".to_string(), base_style)),
             ch if ch.is_control() => {
                 let rendered = if ch == '\u{7f}' {
                     "^?".to_string()

local/recipes/tui/tlc/source/src/filemanager/dialog_ops.rs

@@ -705,8 +705,8 @@ impl FileManager {
             | Some(DialogState::Chattr(_))
             | Some(DialogState::PanelFilter(_))
             | Some(DialogState::Encoding(_))
-            | Some(DialogState::Connection(_)) => {
-                // No-op: those dialogs clear themselves.
+            | Some(DialogState::Connection(_))
+            | Some(DialogState::Sort(_)) => {
             }
             // The Help dialog also clears itself in `handle_dialog_key`
             // when the user presses a close key.
@@ -1057,5 +1057,6 @@ fn dialog_label(d: &DialogState) -> String {
         DialogState::PanelFilter(_) => "Panel filter".to_string(),
         DialogState::Encoding(_) => "Display encoding".to_string(),
         DialogState::Connection(_) => "Network connection".to_string(),
+        DialogState::Sort(_) => "Sort order".to_string(),
     }
 }

local/recipes/tui/tlc/source/src/filemanager/dispatch.rs

@@ -250,6 +250,16 @@ impl FileManager {
                 self.status.set_message(format!("Sort case sensitive: {c}"));
                 Ok(true)
             }
+            Cmd::SortDialog => {
+                use crate::filemanager::sort_dialog::{SortDialog, SortSettings};
+                let p = self.active_panel();
+                let initial = SortSettings {
+                    field: p.sort_field(),
+                    reverse: p.sort_reverse(),
+                };
+                self.dialog = Some(DialogState::Sort(Box::new(SortDialog::new(initial))));
+                Ok(true)
+            }
             Cmd::History => {
                 let dirs: Vec<String> = self
                     .active_panel()
@@ -739,6 +749,26 @@ impl FileManager {
                 }
                 consumed = true;
             }
+            Some(DialogState::Sort(d)) => {
+                use crate::filemanager::sort_dialog::SortResult;
+                let r = d.handle_key(key);
+                match r {
+                    SortResult::Confirm(settings) => {
+                        self.active_panel_mut().apply_sort(settings.field, settings.reverse);
+                        self.status.set_message(format!(
+                            "Sort: {} {}",
+                            self.active_panel().sort_field_name(),
+                            if settings.reverse { "descending" } else { "ascending" }
+                        ));
+                        self.dialog = None;
+                    }
+                    SortResult::Cancel => {
+                        self.dialog = None;
+                    }
+                    SortResult::Running => {}
+                }
+                consumed = true;
+            }
             None => return false,
         }
         // Apply captured outcomes.

local/recipes/tui/tlc/source/src/filemanager/format_utils.rs

@@ -21,6 +21,24 @@ pub fn format_size(bytes: u64) -> String {
     }
 }
 
+/// Truncate a string to `width` visible characters, appending `~` when
+/// truncation occurs.  This mirrors MC's convention of marking panel
+/// rows whose content does not fit.
+#[must_use]
+pub fn truncate_to_width(s: &str, width: usize) -> String {
+    let count = s.chars().count();
+    if count <= width {
+        return s.to_string();
+    }
+    if width == 0 {
+        return String::new();
+    }
+    let keep = width.saturating_sub(1);
+    let mut out: String = s.chars().take(keep).collect();
+    out.push('~');
+    out
+}
+
 /// Format a unix timestamp (seconds since epoch) as a human-readable
 /// string. Returns `"—"` for non-positive values.
 pub fn info_format_time(secs: i64) -> String {
@@ -142,7 +160,32 @@ pub fn panel_footer_text(panel: &Panel) -> String {
 
 #[cfg(test)]
 mod tests {
-    use super::format_short_time;
+    use super::{format_short_time, truncate_to_width};
+
+    #[test]
+    fn truncate_no_change_when_fits() {
+        assert_eq!(truncate_to_width("hello", 10), "hello");
+    }
+
+    #[test]
+    fn truncate_exact_fit() {
+        assert_eq!(truncate_to_width("hello", 5), "hello");
+    }
+
+    #[test]
+    fn truncate_appends_tilde() {
+        assert_eq!(truncate_to_width("hello world", 8), "hello w~");
+    }
+
+    #[test]
+    fn truncate_zero_width() {
+        assert_eq!(truncate_to_width("abc", 0), "");
+    }
+
+    #[test]
+    fn truncate_single_char() {
+        assert_eq!(truncate_to_width("abc", 1), "~");
+    }
 
     #[test]
     fn format_short_time_zero() {

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

@@ -297,6 +297,8 @@ pub enum DialogState {
     Encoding(Box<EncodingDialog>),
     /// Alt-n — network connection dialog.
     Connection(Box<ConnectionDialog>),
+    /// Alt-Shift-T — sort order dialog.
+    Sort(Box<sort_dialog::SortDialog>),
 }
 
 impl DialogState {
@@ -352,6 +354,7 @@ impl DialogState {
             DialogState::PanelFilter(_) => false,
             DialogState::Encoding(_) => false,
             DialogState::Connection(_) => false,
+            DialogState::Sort(_) => false,
         }
     }
 }

local/recipes/tui/tlc/source/src/filemanager/panel.rs

@@ -384,6 +384,17 @@ impl Panel {
         }
     }
 
+    #[must_use]
+    pub fn sort_field(&self) -> SortField {
+        self.sort_field
+    }
+
+    pub fn apply_sort(&mut self, field: SortField, reverse: bool) {
+        self.sort_field = field;
+        self.sort_reverse = reverse;
+        self.sort_in_place();
+    }
+
     /// Slice of the per-panel directory history.
     #[must_use]
     pub fn history_paths(&self) -> &[PathBuf] {

local/recipes/tui/tlc/source/src/filemanager/render.rs

@@ -150,6 +150,7 @@ impl FileManager {
                 DialogState::PanelFilter(d) => d.render(frame, dialog_area, &self.theme),
                 DialogState::Encoding(d) => d.render(frame, dialog_area, &self.theme),
                 DialogState::Connection(d) => d.render(frame, dialog_area, &self.theme),
+                DialogState::Sort(d) => d.render(frame, dialog_area, &self.theme),
             }
         }
     }
@@ -504,25 +505,19 @@ pub fn format_line_mode(e: &Entry, mode: panel::ListingMode, width: usize) -> St
 
             if effective_mode == panel::ListingMode::Long {
                 let perm = e.stat.permissions.to_rwx_string(e.stat.file_type);
-                let mut out =
+                let out =
                     format!("{name_part}  {time_str}  {size_str:>7}  {perm}");
-                if out.chars().count() > width {
-                    out = out.chars().take(width).collect();
-                }
-                out
+                format_utils::truncate_to_width(&out, width)
             } else {
                 let room = width.max(size_str.len() + time_str.len() + 4);
                 let pad = room.saturating_sub(
                     name_part.chars().count() + size_str.len() + time_str.len() + 4,
                 );
-                let mut out = format!(
+                let out = format!(
                     "{name_part}{}{time_str}  {size_str:>7}",
                     " ".repeat(pad + 1)
                 );
-                if out.chars().count() > width {
-                    out = out.chars().take(width).collect();
-                }
-                out
+                format_utils::truncate_to_width(&out, width)
             }
         }
     }
@@ -605,11 +600,7 @@ pub fn render_info_body(
         .into_iter()
         .take(max_rows)
         .map(|s| {
-            let truncated: String = if s.chars().count() > width {
-                s.chars().take(width).collect()
-            } else {
-                s
-            };
+            let truncated = format_utils::truncate_to_width(&s, width);
             Line::from(Span::styled(truncated, Style::default().fg(fg).bg(bg)))
         })
         .collect();
@@ -633,11 +624,7 @@ pub fn render_quickview_body(
         .into_iter()
         .take(max_rows)
         .map(|s| {
-            let truncated: String = if s.chars().count() > width {
-                s.chars().take(width).collect()
-            } else {
-                s
-            };
+            let truncated = format_utils::truncate_to_width(&s, width);
             Line::from(Span::styled(truncated, Style::default().fg(fg).bg(bg)))
         })
         .collect();

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

@@ -92,6 +92,8 @@ pub enum Cmd {
     SortReverse,
     /// Alt-C — toggle case-sensitive sort.
     SortCaseSensitive,
+    /// Alt-Shift-T — full sort order dialog.
+    SortDialog,
     /// Alt-H — show directory history dialog.
     History,
     /// Alt-Shift-S — save current configuration.
@@ -227,6 +229,7 @@ impl Cmd {
     Cmd::SortNext => "Sort next",
     Cmd::SortReverse => "Sort reverse",
     Cmd::SortCaseSensitive => "Sort case sensitive",
+    Cmd::SortDialog => "Sort dialog",
     Cmd::History => "History",
     Cmd::SaveSetup => "Save setup",
     Cmd::ListingCycle => "Listing mode",
@@ -403,6 +406,7 @@ pub fn default_keymap() -> Keymap {
         Cmd::SortReverse,
     );
     km.bind(Key::alt('c'), Cmd::SortCaseSensitive);
+    km.bind(Key::alt('T'), Cmd::SortDialog);
     km.bind(Key::alt('h'), Cmd::History);
     km.bind(Key::alt('S'), Cmd::SaveSetup);
     km.bind(Key::alt('l'), Cmd::ListingCycle);