Date: Wed, 27 Aug 1997 22:13:57 -0700 (PDT) From: John Fox <john@tlh.org> To: FreeBSD-gnats-submit@FreeBSD.ORG Subject: bin/4404: /usr/bin/more uses termcap ti and te Message-ID: <199708280513.WAA21270@circus.tlh.org> Resent-Message-ID: <199708280520.WAA08703@hub.freebsd.org>
next in thread | raw e-mail | index | archive | help
>Number: 4404
>Category: bin
>Synopsis: /usr/bin/more uses termcap ti and te
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Class: change-request
>Submitter-Id: current-users
>Arrival-Date: Wed Aug 27 22:20:01 PDT 1997
>Last-Modified:
>Originator: John Fox
>Organization:
>Release: FreeBSD 2.2-STABLE i386
>Environment:
2.2-stable on August 17. (But looking at the RCS files suggests
the problem has always been there.)
>Description:
/usr/bin/more uses the termcap "ti" and "te" sequences. If they
are set (as they are by the xterm entries in the XFree86 3.3 xterm
termcap additions) to save the screen and replace it after the
program exits, that means that (1) when more exits, whatever was
displayed vanishes, and (2) less than one-screen displays don't
display at all: the screen just flashes. (2) is particularly bad
for programs that use more as a pager, like "man" and "mail,"
because if the man page or mail message is less than one page, you
can never see it.
I have quickly tried "more" with the same xterm termcap entries on
. SunOS 4.1.3
. Solaris 2.5
. AIX
. HPUX
. Nextstep 3.3
. DEC OSF1
. DEC Ultrix
and it never uses the "ti" and "te" sequences, although, e.g., vi
almost always does.
>How-To-Repeat:
Use this xterm termcap entry from the XFree86 3.3.1 distribution
(that their installation recommends):
# $XConsortium: termcap,v 1.13 94/10/13 21:24:32 gildea Exp $
# $XFree86: xc/programs/xterm/termcap,v 3.9.2.2 1997/06/18 08:26:29 dawes Exp $
vs|xterm|xterm-24|xterms|vs100|xterm (X Window System):\
:is=\E7\E[r\E[m\E[?7h\E[?1;3;4;6l\E[4l\E8\E>:\
:rs=\E7\E[r\E[m\E[?7h\E[?1;3;4;6l\E[4l\E8\E>:\
:AL=\E[%dL:DL=\E[%dM:DC=\E[%dP:DO=\E[%dB:UP=\E[%dA:\
:LE=\E[%dD:RI=\E[%dC:\
:al=\E[L:am:\
:bl=^G:\
:cd=\E[J:ce=\E[K:cl=\E[H\E[2J:cm=\E[%i%d;%dH:co#80:\
:cs=\E[%i%d;%dr:ct=\E[3g:\
:dc=\E[P:dl=\E[M:\
:ho=\E[H:\
:im=\E[4h:ei=\E[4l:mi:\
:ks=\E[?1h\E=:ke=\E[?1l\E>:\
:k1=\EOP:k2=\EOQ:k3=\EOR:k4=\EOS:\
:k5=\E[15~:k6=\E[17~:k7=\E[18~:k8=\E[19~:k9=\E[20~:\
:k;=\E[21~:F1=\E[23~:F2=\E[24~:\
:kn#12:\
:@7=\EOF:kh=\EOH:\
:@0=\E[1~:kI=\E[2~:kD=\E[3~:\
:*6=\E[4~:kP=\E[5~:kN=\E[6~:\
:km:\
:kb=^H:ku=\EOA:kd=\EOB:kr=\EOC:kl=\EOD:\
:li#24:md=\E[1m:me=\E[m:mr=\E[7m:ms:nd=\E[C:\
:eA=\E)0:as=^N:ae=^O:\
:ml=\El:mu=\Em:\
:sc=\E7:rc=\E8:sf=\n:so=\E[7m:se=\E[27m:sr=\EM:\
:st=\EH:\
:ti=\E7\E[?47h:te=\E[2J\E[?47l\E8:\
:vi=\E[?25l:ve=\E[?25h:\
:up=\E[A:us=\E[4m:ue=\E[24m:xn:\
:ut:Co#8:op=\E[39;49m:AB=\E[4%dm:AF=\E[3%dm:\
:pa#64:Sf=\E[3%dm:Sb=\E[4%dm:
>Fix:
In /usr/src/usr.bin/more
Either:
1. In screen.c comment out lines 319 and 323.
2. In main.c comment out lines 306 and 368.
>Audit-Trail:
>Unformatted:
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199708280513.WAA21270>