A pane has a tagexec: a word run as a click in its tag

The workspace had /tagexec and a column its exec, but a pane's own tag
could be clicked only by an event record. pane/<n>/tagexec runs each line
as a click in that pane's tag (never redirected to its event reader, as a
header's is not) and reads back what it touched. The README, fs.md and
the skill list it.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

1 files changed, 8 insertions, 5 deletions

diff --git a/src/ninep/tree.zig b/src/ninep/tree.zig
index f45a1a90..398824d5 100644
--- a/src/ninep/tree.zig
+++ b/src/ninep/tree.zig
@@ -259,6 +259,9 @@ pub const PaneFile = enum(u5) {
     event,
     look,
     exec,
+    /// A word run as a click in the pane's tag, as /tagexec is in the
+    /// workspace's and col/<n>/exec in a column's.
+    tagexec,
     pty,
     pty_ctl,
     pty_status,
@@ -965,7 +968,7 @@ fn linesFile(target: Target) bool {
     return switch (target) {
         .top => |f| f == .look or f == .exec or f == .ctl or f == .tagexec,
         .col => |c| c.file == .ctl or c.file == .exec,
-        .pane => |t| t.file == .look or t.file == .exec or t.file == .ctl,
+        .pane => |t| t.file == .look or t.file == .exec or t.file == .ctl or t.file == .tagexec,
     };
 }
 
@@ -974,7 +977,7 @@ fn resultsFile(target: Target) bool {
     return switch (target) {
         .top => |f| f == .look or f == .exec or f == .tagexec,
         .col => |c| c.file == .exec,
-        .pane => |t| t.file == .look or t.file == .exec,
+        .pane => |t| t.file == .look or t.file == .exec or t.file == .tagexec,
     };
 }
 
@@ -1025,7 +1028,7 @@ fn write(p: *Pardes, req: Req, target: Target) Reply {
 fn writeNow(p: *Pardes, req: Req, target: Target) Reply {
     switch (target) {
         .top => |f| return switch (f) {
-            .look, .exec => ctl.command(p, req, null, f == .exec),
+            .look, .exec => ctl.command(p, req, null, f == .exec, false),
             .log => events.writeLog(p, req),
             .focus => ctl.writeFocus(p, req),
             .ctl => ctl.writeRoot(p, req),
@@ -1234,10 +1237,10 @@ test "readdir lists the root and a pane directory without creating anything" {
 
     const dir = rdir(p, Node.of(serial, .dir), 0);
     const files = th.dirents(dir.bytes, &buf);
-    try testing.expectEqual(@as(usize, 17), files.len);
+    try testing.expectEqual(@as(usize, 18), files.len);
     for ([_][]const u8{
         "name",  "body", "tag",    "ctl",    "addr",   "dot",  "limit", "data", "xdata",
-        "sel",   "dirty", "mark",  "scroll", "errors", "event", "look", "exec",
+        "sel",   "dirty", "mark",  "scroll", "errors", "event", "look", "exec", "tagexec",
     }, 0..) |name, i|
         try testing.expectEqualStrings(name, files[i].name);
     try testing.expect(th.nameAt(files, ".") == null);