A click written back to event is done as the click, REPL and all; a REPL's ctl line names it

Writing an M record back from a .py body with a REPL bound ran the text as a
shell command (exit 127), where the click itself went to the REPL. acme does
what the click would have done (xfideventwrite, xfid.c:842-844), so a body X
record written back now goes the way a middle click goes: to a bound REPL,
bracketed or line by line, the several-REPLs question included. An F record,
a line written to exec, was never a click and still runs as a command. For a
readable list of bindings, the smallest place: a bound terminal's ctl line
ends with its id after current/notcurrent.

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

1 files changed, 5 insertions, 1 deletions

diff --git a/src/ninep/ctl.zig b/src/ninep/ctl.zig
index 3690ac47..4e1c039b 100644
--- a/src/ninep/ctl.zig
+++ b/src/ninep/ctl.zig
@@ -163,7 +163,7 @@ fn writeQuoted(w: *std.Io.Writer, s: []const u8) !void {
     try w.writeByte('\'');
 }
 
-pub const pane_text_cap = 7 * 12 + 2 * 256 + 4 + "notcurrent ".len;
+pub const pane_text_cap = 7 * 12 + 2 * 256 + 4 + "notcurrent ".len + 48;
 
 /// acme's winctlprint: serial, tag length, body length, a reserved zero, the
 /// dirty flag, then the width in cells, the font and the tab width. Then
@@ -186,6 +186,10 @@ pub fn paneText(p: *Pardes, pane: *Pane, buf: []u8) []const u8 {
     // While a column's or the workspace's tag has the keyboard, no pane does.
     const current = p.panes[p.active] == pane and !p.header_focus;
     w.print(" {d:>11} {s} ", .{ config.tab_width, if (current) "current" else "notcurrent" }) catch {};
+    // A terminal bound as a REPL ends with its id, `python-a`.
+    var idbuf: [48]u8 = undefined;
+    const id = exec_line.replId(&idbuf, pane);
+    if (id.len > 0) w.print("{s} ", .{id}) catch {};
     return w.buffered();
 }