PRINTERMENU: iterative statement warning, printing to default fails, menu continuously redrawn

[pamoroso]

I'm noticing three issues when running the LispUsers module PRINTERMENU. The first is the warning Possible non-terminating iterative statement that pops up in a TTY window when calling (PRINTERMENU):

Next, adding the POSEIDON: Interpress printer of Dodo as the default printer via titlebar-click > Add printer > POSEIDON: and printing a TEdit document via Meta-P > Send to a printer > (Default printer) yields the error:

INTERLISP-ERROR
In ERROR:
Can't find address of DEFAULTPRINTER:

The backtrace: PRINTERMENU-ERR.TXT

Finally, removing a printer with titlebar-click > Delete printer causes the PRINTERMENU menu to be continuously redrawn and flicker until I click on an item to select it for deletion.

On Linux Mint 22.1 Cinnamon I'm using Medley master/3a14c9a and Maiko nhb-fix-missing-includes-iwyu/0cc1dd8.

[rmkaplan]

It turns out that the non-terminating message is real, the loop is in the process function that is monitoring for a change in the value of the variable DEFAULTPRINTINGHOST and the blocking. There is a comment in the code that says explicitly that it is supposed to run forever. You are seeing this because the code you are running is not compiled. The message would show up at compile-time, but would not be generated at runtime.

…

On Sep 9, 2026, at 1:48 AM, Paolo Amoroso ***@***.***> wrote: pamoroso created an issue (Interlisp/medley#2749) <#2749> I'm noticing three issues when running the LispUsers module PRINTERMENU. The first is the warning Possible non-terminating iterative statement that pops up in a TTY window when calling (PRINTERMENU): Image: Image (view on web) <https://github.com/user-attachments/assets/e7db4121-ba9f-475f-914c-97c912c97b2d> Next, adding the POSEIDON: Interpress printer of Dodo as the default printer via titlebar-click > Add printer > POSEIDON: and printing a TEdit document via Meta-P > Send to a printer > (Default printer) yields the error: INTERLISP-ERROR In ERROR: Can't find address of DEFAULTPRINTER: Image: Image (view on web) <https://github.com/user-attachments/assets/973fce9b-e19d-4432-bdea-04e16132c805> The backtrace: PRINTERMENU-ERR.TXT <https://github.com/user-attachments/files/31998498/PRINTERMENU-ERR.TXT> Finally, removing a printer with titlebar-click > Delete printer causes the PRINTERMENU menu to be continuously redrawn and flicker until I click on an item to select it for deletion. On Linux Mint 22.1 Cinnamon I'm using Medley master/3a14c9a and Maiko nhb-fix-missing-includes-iwyu/0cc1dd8. — Reply to this email directly, view it on GitHub <#2749?email_source=notifications&email_token=AQSTUJLUB3KPZ5CGITNNMZL5OEKPBA5CNFSL4Z3JMQ5C6L3HNF2C22DVMIXUS43TOVSS6NJTHE3TEMJRGIYDLJTSMVQXG33OVJZXKYTTMNZGSYTFMSSWK5TFNZ2KYZTPN52GK4S7MNWGSY3L>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AQSTUJNWF4KS3ZJVYHA52ZD5OEKPBAVCNFSNUABFKJSXA33TNF2G64TZHMZDQMJVGE4TSNRUHNEXG43VMU5TKMZZG4ZDCMJSGA22C5QC>. You are receiving this because you are subscribed to this thread.