From cf49c329cb401a5c530ef2533066702fe1545360 Mon Sep 17 00:00:00 2001 From: Gabriel Schneider Date: Tue, 29 Sep 2026 03:10:29 -0300 Subject: An exec line over 1024 bytes fails the write, naming the limit A command line longer than the 1024 bytes a command pane takes was said on the message row after the write had already succeeded. An exec write (the root's, a pane's, tagexec, a column's) now refuses it before anything runs, EINVAL with "a command line is at most 1024 bytes" and an err record; a builtin's line, a long Msg or an Edit block, is not limited. Co-Authored-By: Claude Opus 5.5 --- src/fs-help.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/fs-help.txt') diff --git a/src/fs-help.txt b/src/fs-help.txt index c3578af9..ca4d3d77 100644 --- a/src/fs-help.txt +++ b/src/fs-help.txt @@ -39,7 +39,7 @@ Pitfalls, one each: data: > replaces the addr range, : > deletes it, a 2nd > inserts (addr moved); body: > empties all. tag reads the path, then its own text; > replaces that text (default words too), >> appends. A terminal's body is a history snapshot frozen per open, wrapped rows joined into lines; pty/data is the live stream. - exec: a non-builtin line runs as a command pane (ctl's Shell -c), a shell's typed in; a line runs once whole. + exec: a non-builtin line (at most 1024 bytes) runs as a command pane (Shell -c), a shell's typed in; once whole. Through a mount a malformed write is EINVAL, a failed one EIO or an errno that fits (ENOENT): log's err says why. lock/unlock need a held ctl fd (exec 3>ctl); a held lock fails: retry. fs.md has the rest. Repl python on a terminal's ctl: a .py body's clicks go to it (Repl - unbinds, Repl says it); tags stay commands. -- cgit v1.3