feat: add Select All (Cmd+A)

buffee.js

@@ -18,7 +18,7 @@
  * editor.View.render();
  */
 function Buffee($, { h, w, s = 4 } = {}) {
-  this.v = '15.10.0-alpha.1';
+  this.v = '16.0.1-alpha.1';
   this.$ = $;
   // head.y and anchor.y are ABSOLUTE line numbers (Model indices, not viewport-relative).
   // This allows selections to span beyond the viewport.
@@ -415,6 +415,7 @@ function Buffee($, { h, w, s = 4 } = {}) {
     },
       cmdMap = {
         z: () => this.History?.[sh ? 'redo' : 'undo'](),
+        a: () => { const e = Model.end; Span.cursor({y: 0, x: 0}); if (e.y || e.x) Span.select(e); render(); },
     };
 
     if (arrowCode) {

dev/changelog.txt

@@ -1,5 +1,11 @@
 * Project Devlog
 
+** 16.0.1-alpha.1 [2026-01-14]  gz: 2547 / 2.49 KB (+11), br: 2354 / 2.30 KB (+9), min: 5671 / 5.54 KB (22)
+- fix: select all on empty doc keeps cursor mode
+
+** 16.0.0-alpha.1 [2026-01-13]  gz: 2536 / 2.48 KB (+13), br: 2345 / 2.29 KB (+12), min: 5649 / 5.52 KB (47)
+- feat: add Select All (Cmd+A)
+
 ** 15.10.0-alpha.1 [2026-01-13]  gz: 2523 / 2.46 KB (0), br: 2333 / 2.28 KB (0), min: 5602 / 5.47 KB (0)
 - api: add Model.end returning last coordinate {y, x}
 - api: Span.select() accepts optional position for head

test/specs/spec-selection.dsl

@@ -695,3 +695,52 @@ const $vp9 = fixture.node.querySelectorAll(".buffee-zsel > pre")[9];
 expect($vp9.style.left).toBe("0ch");
 expect($vp9.style.width).toBe("4ch");
 
+
+# Select All (Cmd+A)
+
+## should select all text with Cmd+A on single line
+### Select All on single line
+TYPE "Hello World"
+left with meta
+fixture.press('a').withMetaKey().once();
+EXPECT selection at 0,0-0,11
+
+## should select all text with Cmd+A on multiple lines
+### Select All on multiple lines
+TYPE "First line"
+enter
+TYPE "Second line"
+enter
+TYPE "Third line"
+fixture.press('a').withMetaKey().once();
+EXPECT selection at 0,0-2,10
+
+## should select all from cursor in middle of document
+### Select All from middle position
+TYPE "Line 1"
+enter
+TYPE "Line 2"
+enter
+TYPE "Line 3"
+up
+right 3 times
+fixture.press('a').withMetaKey().once();
+EXPECT selection at 0,0-2,6
+
+## should select all on empty document
+### Select All on empty document
+fixture.press('a').withMetaKey().once();
+// Empty document: cursor at 0,0, selection from 0,0 to 0,0
+expect(fixture.editor.Span.dir).toBe(0);
+EXPECT cursor at 0,0
+
+## should replace all text after Select All
+### Select All then type replaces everything
+TYPE "Old content"
+enter
+TYPE "More old content"
+fixture.press('a').withMetaKey().once();
+TYPE "New"
+expect(fixture).toHaveLines('New');
+EXPECT cursor at 0,3
+