Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!uunet!sco!staceyc
From: staceyc@sco.COM (Stacey Campbell)
Newsgroups: comp.terminals,sco.opendesktop
Subject: Re: Alternate character modes on qvt101 and freedom 100 terminals
Keywords: qvt101, freedom100, curses
Message-ID: <10156@scolex.sco.COM>
Date: 12 Feb 91 17:51:47 GMT
References: <1500@rascal.UUCP>
Sender: news@sco.COM
Organization: The Santa Cruz Operation, Inc.
Lines: 37


[I'm posting this because this is not the first time I have seen
this 'bug' reported against terminfo curses.]

In article <1500@rascal.UUCP> theo@rascal.UUCP (T. Kramer) writes:
>It is however not possible to switch back into normal mode
>(rmacs). This only happens when the character sequence for switching
>back to normal mode is '\E%'.

Just to double check, you are aware that '%' is special in terminfo
and needs to be escaped (I notice that you have shown the special code
for ascii 27 '\E' but not for '%' which is '%%'.  Do a man terminfo
for information.

>When analysing the output of the program below ie. redirecting the output
>to a file and using hd to see the characters output, the '\E%' (rmacs)
>sequence is missing. If I adjust the sequence for rmacs in the terminfo
>source to something else like 'AA' the rmacs sequence is there.

This would seem to confirm the non escaped '%' theory.  Check the
terminfo manual page.

>This does not happen on my XENIX V.2.2 development system [...]

Which uses termcap where '%' is probably not special.

>Note: To get the terminal back into non alternate mode after running the
>included program type in the following: tput rmacs

Note that the tput command does not attempt to parameterize any arguments
so it will extract and output the '\E%' without barfing on the '%'.
If you write a small program that outputs the tparam() version of "rmacs"
you will almost certainly see the '%' disappear.
-- 
                             Stacey Campbell       
                        Internet: staceyc@sco.com
     UUCP: {uunet,ucscc,att,sq,altos,lotus,sun,microsoft}!sco!staceyc