Add exclude-current action

https://github.com/junegunn/fzf/pull/4231#issuecomment-2646063208

man/man1/fzf.1

@@ -1602,6 +1602,7 @@ A key or an event can be bound to one or more of the following actions.
     \fBenable\-search\fR                (enable search functionality)
     \fBend\-of\-line\fR                  \fIctrl\-e  end\fR
     \fBexclude\fR                      (exclude the current item or the selected items from the result)
+    \fBexclude\-current\fR              (exclude the current item from the result)
     \fBexecute(...)\fR                 (see below for the details)
     \fBexecute\-silent(...)\fR          (see below for the details)
     \fBfirst\fR                        (move to the first match; same as \fBpos(1)\fR)

src/options.go

@@ -1605,6 +1605,8 @@ func parseActionList(masked string, original string, prevActions []*action, putA
 			appendAction(actBell)
 		case "exclude":
 			appendAction(actExclude)
+		case "exclude-current":
+			appendAction(actExcludeCurrent)
 		default:
 			t := isExecuteAction(specLower)
 			if t == actIgnore {

src/terminal.go

@@ -585,6 +585,7 @@ const (
 	actHideHeader
 	actBell
 	actExclude
+	actExcludeCurrent
 )
 
 func (a actionType) Name() string {
@@ -4926,6 +4927,12 @@ func (t *Terminal) Loop() error {
 					}
 				}
 				changed = true
+			case actExcludeCurrent:
+				if item := t.currentItem(); item != nil {
+					denylist = append(denylist, item.Index())
+					t.deselectItem(item)
+					changed = true
+				}
 			case actExecute, actExecuteSilent:
 				t.executeCommand(a.a, false, a.t == actExecuteSilent, false, false, "")
 			case actExecuteMulti:

test/test_core.rb

@@ -1669,23 +1669,80 @@ class TestCore < TestInteractive
   def test_exclude
     tmux.send_keys %(seq 1000 | #{FZF} --multi --bind 'a:exclude,b:reload(seq 1000),c:reload-sync(seq 1000)'), :Enter
 
-    tmux.until { |lines| assert_equal 1000, lines.match_count }
-    tmux.until { |lines| assert_includes lines, '> 1' }
+    tmux.until do |lines|
+      assert_equal 1000, lines.match_count
+      assert_includes lines, '> 1'
+    end
     tmux.send_keys :a
-    tmux.until { |lines| assert_includes lines, '> 2' }
-    tmux.until { |lines| assert_equal 999, lines.match_count }
+    tmux.until do |lines|
+      assert_includes lines, '> 2'
+      assert_equal 999, lines.match_count
+    end
     tmux.send_keys :Up, :BTab, :BTab, :BTab, :a
-    tmux.until { |lines| assert_equal 996, lines.match_count }
-    tmux.until { |lines| assert_includes lines, '> 9' }
+    tmux.until do |lines|
+      assert_equal 996, lines.match_count
+      assert_includes lines, '> 9'
+    end
     tmux.send_keys :b
-    tmux.until { |lines| assert_equal 1000, lines.match_count }
-    tmux.until { |lines| assert_includes lines, '> 5' }
+    tmux.until do |lines|
+      assert_equal 1000, lines.match_count
+      assert_includes lines, '> 5'
+    end
     tmux.send_keys :Tab, :Tab, :Tab, :a
-    tmux.until { |lines| assert_equal 997, lines.match_count }
-    tmux.until { |lines| assert_includes lines, '> 2' }
+    tmux.until do |lines|
+      assert_equal 997, lines.match_count
+      assert_includes lines, '> 2'
+    end
     tmux.send_keys :c
-    tmux.until { |lines| assert_equal 1000, lines.match_count }
-    tmux.until { |lines| assert_includes lines, '> 2' }
+    tmux.until do |lines|
+      assert_equal 1000, lines.match_count
+      assert_includes lines, '> 2'
+    end
+
+    # TODO: We should also check the behavior of 'exclude' during reloads
+  end
+
+  def test_exclude_current
+    tmux.send_keys %(seq 1000 | #{FZF} --multi --bind 'a:exclude-current,b:reload(seq 1000),c:reload-sync(seq 1000)'), :Enter
+
+    tmux.until do |lines|
+      assert_equal 1000, lines.match_count
+      assert_includes lines, '> 1'
+    end
+    tmux.send_keys :a
+    tmux.until do |lines|
+      assert_includes lines, '> 2'
+      assert_equal 999, lines.match_count
+    end
+    tmux.send_keys :Up, :BTab, :BTab, :BTab, :a
+    tmux.until do |lines|
+      assert_equal 998, lines.match_count
+      assert_equal 3, lines.select_count
+      assert_includes lines, '> 7'
+    end
+    tmux.send_keys :b
+    tmux.until do |lines|
+      assert_equal 1000, lines.match_count
+      assert_equal 0, lines.select_count
+      assert_includes lines, '> 5'
+    end
+    tmux.send_keys :Tab, :Tab, :Tab, :a
+    tmux.until do |lines|
+      assert_equal 999, lines.match_count
+      assert_equal 3, lines.select_count
+      assert_includes lines, '>>3'
+    end
+    tmux.send_keys :a
+    tmux.until do |lines|
+      assert_equal 998, lines.match_count
+      assert_equal 2, lines.select_count
+      assert_includes lines, '>>4'
+    end
+    tmux.send_keys :c
+    tmux.until do |lines|
+      assert_equal 1000, lines.match_count
+      assert_includes lines, '> 2'
+    end
 
     # TODO: We should also check the behavior of 'exclude' during reloads
   end