@p<serial>:<address> takes any sam address, as file:<address> does

@p<serial> took a line spot but an address after it (/re/, #n, $, 0/re/,
a range) was dropped, the name failing the file check, and an unknown
serial fell through to a search. The pane is now addressed like a file;
a miss and a serial no pane has each log an err, and look reads back
empty.

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

1 files changed, 5 insertions, 2 deletions

diff --git a/src/look.zig b/src/look.zig
index 8318973b..6a4fe1d1 100644
--- a/src/look.zig
+++ b/src/look.zig
@@ -1289,6 +1289,9 @@ fn lookAddress(p: *Pardes, id: usize, path: []const u8, expr: []const u8) void {
         .pane => |t| if (t.id < MAX_PANES and p.panes[t.id] != null) t.id else null,
         else => null,
     };
+    // `@p<serial>:<address>`: that pane, or, not open, a miss said as one.
+    const by_serial = std.mem.startsWith(u8, path, config.pane_addr);
+    if (by_serial and open == null) return missed(p, id, "no pane {s}", .{path[0..@min(path.len, 32)]});
     if (open) |o| target = o else if (path.len > 0) {
         const before = p.active;
         lookAt(p, id, path);
@@ -1297,8 +1300,8 @@ fn lookAddress(p: *Pardes, id: usize, path: []const u8, expr: []const u8) void {
         if (target == before and target != id) return;
     }
     const pane = p.panes[target] orelse return;
-    const f = pane.file orelse return;
-    if (path.len > 0 and (f.output != null or !std.mem.endsWith(u8, f.path, std.fs.path.basename(path)))) return;
+    const f = pane.file orelse return missed(p, id, "{s} is no text to address", .{path[0..@min(path.len, 64)]});
+    if (!by_serial and path.len > 0 and (f.output != null or !std.mem.endsWith(u8, f.path, std.fs.path.basename(path)))) return;
     var a: Addr = .{ .text = f.content, .lim = null, .expr = expr };
     const r = a.address(ninep_pane.dotOf(pane)) orelse {
         return missed(p, id, "{s}", .{a.err});