[screen-devel] [bug #54556] screen is producing invalid TERMCAPs

[anonymous]

URL:
  <http://savannah.gnu.org/bugs/?54556>

                 Summary: screen is producing invalid TERMCAPs
                 Project: GNU Screen
            Submitted by: None
            Submitted on: Wed 22 Aug 2018 09:32:07 PM UTC
                Category: Program Logic
                Severity: 3 - Normal
                Priority: 5 - Normal
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
                 Release: None
           Fixed Release: None
         Planned Release: None
           Work Required: None

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Details:

I'm running screen 4.06.02 and ncurses 6.1 on MacOS X.

Screen is creating a TERMCAP variable for my TERM that ncurses can not parse.
When I start screen an error message is printed to stderr from ncurses:
"TERMCAP", line 20, col 1, terminal 'SC': Missing separator

This error message happens when my TERM outside of screen is xterm-256color.
Within the screen, my TERM is screen.xterm-256color and screen creates this
TERMCAP for it:

SC|screen.xterm-256color|VT 100/ANSI X3.64 virtual terminal:\
:DO=\E[%dB:LE=\E[%dD:RI=\E[%dC:UP=\E[%dA:bs:bt=\E[Z:\
:cd=\E[J:ce=\E[K:cl=\E[H\E[J:cm=\E[%i%d;%dH:ct=\E[3g:\
:do=^J:nd=\E[C:pt:rc=\E8:rs=\Ec:sc=\E7:st=\EH:up=\EM:\
:le=^H:bl=^G:cr=^M:it#8:ho=\E[H:nw=\EE:ta=^I:is=\E)0:\
:li#53:co#234:am:xn:xv:LP:sr=\EM:al=\E[L:AL=\E[%dL:\
:cs=\E[%i%d;%dr:dl=\E[M:DL=\E[%dM:dc=\E[P:DC=\E[%dP:\
:im=\E[4h:ei=\E[4l:mi:IC=\E[%d@:ks=\E[?1h\E=:\
:ke=\E[?1l\E>:vi=\E[?25l:ve=\E[34h\E[?25h:vs=\E[34l:\
:ti=\E[?1049h:te=\E[?1049l:us=\E[4m:ue=\E[24m:so=\E[3m:\
:se=\E[23m:mb=\E[5m:md=\E[1m:mh=\E[2m:mr=\E[7m:\ :me=\E[m:ms:\
:Co#8:pa#64:AF=\E[3%dm:AB=\E[4%dm:op=\E[39;49m:AX:\
:vb=\Eg:G0:as=\E(0:ae=\E(B:\
:ac=\140\140aaffggjjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~..--++,,hhII00:\
:po=\E[5i:pf=\E[4i:Km=\E[M:k0=\E[10~: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~:\
:F3=\E[1;2P:F4=\E[1;2Q:F5=\E[1;2R:F6=\E[1;2S:\
:F7=\E[15;2~:F8=\E[17;2~:F9=\E[18;2~:FA=\E[19;2~:\
:FB=\E[20;2~:FC=\E[21;2~:FD=\E[23;2~:FE=\E[24;2~:kb=^H:\
:K2=\EOE:kB=\E[Z:kF=\E[1;2B:kR=\E[1;2A:*4=\E[3;2~:\
:*7=\E[1;2F:#2=\E[1;2H:#3=\E[2;2~:#4=\E[1;2D:%c=\E[6;2~:\
:%e=\E[5;2~:%i=\E[1;2C:kh=\E[1~:@1=\E[1~:kH=\E[4~:\
:@7=\E[4~:kN=\E[6~:kP=\E[5~:kI=\E[2~:kD=\E[3~:ku=\EOA:\
:kd=\EOB:kr=\EOC:kl=\EOD:km:

Note that if I set TERM=xterm outside of screen I do not get the error message
from ncurses. If TERM outside of screen is ncurses the TERM inside of screen
is screen and TERMCAP is:
SC|screen|VT 100/ANSI X3.64 virtual terminal:\
:DO=\E[%dB:LE=\E[%dD:RI=\E[%dC:UP=\E[%dA:bs:bt=\E[Z:\
:cd=\E[J:ce=\E[K:cl=\E[H\E[J:cm=\E[%i%d;%dH:ct=\E[3g:\
:do=^J:nd=\E[C:pt:rc=\E8:rs=\Ec:sc=\E7:st=\EH:up=\EM:\
:le=^H:bl=^G:cr=^M:it#8:ho=\E[H:nw=\EE:ta=^I:is=\E)0:\
:li#53:co#234:am:xn:xv:LP:sr=\EM:al=\E[L:AL=\E[%dL:\
:cs=\E[%i%d;%dr:dl=\E[M:DL=\E[%dM:dc=\E[P:DC=\E[%dP:\
:im=\E[4h:ei=\E[4l:mi:IC=\E[%d@:ks=\E[?1h\E=:\
:ke=\E[?1l\E>:vi=\E[?25l:ve=\E[34h\E[?25h:vs=\E[34l:\
:ti=\E[?1049h:te=\E[?1049l:us=\E[4m:ue=\E[24m:so=\E[3m:\
:se=\E[23m:mb=\E[5m:md=\E[1m:mh=\E[2m:mr=\E[7m:\ :me=\E[m:ms:\
:Co#8:pa#64:AF=\E[3%dm:AB=\E[4%dm:op=\E[39;49m:AX:\
:vb=\Eg:G0:as=\E(0:ae=\E(B:\
:ac=\140\140aaffggjjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~..--++,,hhII00:\
:po=\E[5i:pf=\E[4i:Km=\E[M:k0=\E[10~: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~:\
:F3=\E[1;2P:F4=\E[1;2Q:F5=\E[1;2R:F6=\E[1;2S:\
:F7=\E[15;2~:F8=\E[17;2~:F9=\E[18;2~:FA=\E[19;2~:\
:FB=\E[20;2~:FC=\E[21;2~:FD=\E[23;2~:FE=\E[24;2~:kb=^H:\
:K2=\EOE:kB=\E[Z:kF=\E[1;2B:kR=\E[1;2A:*4=\E[3;2~:\
:*7=\E[1;2F:#2=\E[1;2H:#3=\E[2;2~:#4=\E[1;2D:%c=\E[6;2~:\
:%e=\E[5;2~:%i=\E[1;2C:kh=\E[1~:@1=\E[1~:kH=\E[4~:\
:@7=\E[4~:kN=\E[6~:kP=\E[5~:kI=\E[2~:kD=\E[3~:ku=\EOA:\
:kd=\EOB:kr=\EOC:kl=\EOD:km:




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