tmux will always use terminfo, whether that is converted internally from
termcap by ncurses or what is not that important, it'll do the same for
the stuff tmux gets as for infocmp if they are linked against the same
ncurses. Actually the best way to check what tmux is using is probably
to look at tmux server-info output:
$ tmux info|egrep '(AX|op):'
0: AX: [missing]
129: op: (string) \033[39;49m
Your termcap entries do not have either AX or op, so they will both be
missing. This means tmux can't tell that the terminal supports default
colours and has to fallback on assuming the default is white on black (7
on 0).
Either fix the entries directly to add the AX flag or op=\E[39;49m or do
the following in .tmux.conf:
set -ga terminal-overrides ",rxvt-unicode*:AX"
On Sun, Nov 06, 2011 at 12:13:00PM +0100, Natacha Port? wrote:
> Hello,
>
> on Sunday 06 November 2011 at 10:14, Nicholas Marriott wrote:
> > Yes terminals have a default colour pair (if they have AX or op in
> > terminfo anyway), it's set with \033[39m and \033[49m or sgr0.
>
> I was expecting terminal emulators like rxvt-unicode to have a default
> color pair, but I thought tmux did not have any, and was simply re-using
> the default from the terminal in the client.
>
> > \033[38;5;7m is right for rxvt-unicode-256color if tmux wants to set
> > colour 7 (it's the same as tput setaf 7|cat -v) but tmux should not be
> > setting colour 7, it should be setting the default colour after \033[m
> > (either using sgr0 or \033[39m).
>
> I don't really understand from where this 7 comes, unless it's some kind
> of default color pair internal to tmux, but then how can such a value be
> set?
>
> > But this works for me fine with rxvt-unicode-256color, can you send me
> > the output of infocmp -x in rxvt-unicode?
>
> As I said in my previous e-mail, there are two ncurses with two
> different databases, and it messes things up. For example
> `tput setaf 7 | cat -v` outputs "^[[23m", but that's because tput is
> using the terminfo database from port ncurses, while tmux uses
> (probably) termcap database from base ncurses, which contains
> :AF=\E[38;5;%dm:
>
> Here are the relevant termcap entries (I hope it's not too spamy):
>
> rxvt-mono|rxvt terminal emulator (monochrome) (X Window System):\
> :am:eo:km:mi:ms:xn:xo:\
> :co#80:it#8:li#24:\
> :AL=\E[%dL:DC=\E[%dP:DL=\E[%dM:DO=\E[%dB:IC=\E[%d@:\
> :K1=\EOw:K2=\EOu:K3=\EOy:K4=\EOq:K5=\EOs:LE=\E[%dD:\
> :RI=\E[%dC:UP=\E[%dA:ae=\E(B:al=\E[L:as=\E(0:bl=^G:cd=\E[J:\
> :ce=\E[K:cl=\E[H\E[2J:cm=\E[%i%d;%dH:cr=^M:\
> :cs=\E[%i%d;%dr:ct=\E[3g:dc=\E[P:dl=\E[M:do=^J:ei=\E[4l:\
> :ho=\E[H:i1=\E[?47l\E=\E[?1l:ic=\E[@:im=\E[4h:\
> :is=\E[r\E[m\E[2J\E[H\E[?7h\E[?1;3;4;6l\E[4l:\
> :k0=\E[21~:k1=\E[11~:k2=\E[12~:k3=\E[13~:k4=\E[14~:\
> :k5=\E[15~:k6=\E[17~:k7=\E[18~:k8=\E[19~:k9=\E[20~:\
> :kD=\E[3~:kI=\E[2~:kN=\E[6~:kP=\E[5~:kb=^H:kd=\E[B:ke=\E>:\
> :kh=\E[7~:@7=\E[8~:kl=\E[D:kr=\E[C:ks=\E=:ku=\E[A:le=^H:mb=\E[5m:\
> :md=\E[1m:me=\E[m\017:mr=\E[7m:nd=\E[C:rc=\E8:sc=\E7:\
> :se=\E[27m:sf=^J:so=\E[7m:sr=\EM:st=\EH:ta=^I:\
> :te=\E[?47l\E8:ti=\E7\E[?47h:ue=\E[24m:up=\E[A:us=\E[4m:\
> :vb=\E[?5h\E[?5l:ve=\E[?25h:vi=\E[?25l:vs=\E[?25h:
>
> rxvt-unicode|rxvt-unicode terminal (X Window System):\
> :SF=\E[%dS:SR=\E[%dT:bw:ec=\E[%dX:kb=\177:kd=\EOB:ke=\E[?1l\E>:\
> :kl=\EOD:kr=\EOC:ks=\E[?1h\E=:ku=\EOA:lm#0:te=\E[r\E[?1049l:\
> :ti=\E[?1049h:tc=rxvt-mono:
>
> rxvt-256color|rxvt terminal emulator with 256 colors:\
> :Co#256:AF=\E[38;5;%dm:AB=\E[48;5;%dm:tc=rxvt-unicode:
>
> rxvt-unicode-256color|rxvt-unicode disambiguation:\
> :so=\E[7m:se=\E[27m:ZH=\E[3m:ZR=\E[23m:\
> :tc=rxvt-256color:
>
> The last entry is from my $HOME/.termcap, while the rest comes from
> system /usr/share/misc/termcap (symlinked as /etc/termcap). Because the
> changes to $HOME/.termcap were reflected immediately, I think there is
> no compilation needed.
>
> The main reason for using the last entry was that in port ncurses
> database, rxvt-256color refers to 256 color version of rxvt (it makes
> sense) and not of rxvt-unicode. So at first it was only an alias, and
> when I was tmux FAQ about reverse-video versus italics with
> rxvt-unicode, I added so/se and ZH/ZR capabilities.
>
> Now if you're asking for `infocmp` output, I guess you're more familiar
> with terminfo format than termcap, so I will try to merge the above
> entries and convert them. Since I'm not completely certain I'm doing it
> right, and whether port ncurses tool interprets termcap exactly like
> base ncurses libraries, you should probably consider the above termcap
> much more reliable than the below terminfo.
>
> rxvt-unicode-256color|rxvt-unicode disambiguation,
> am, bw, eo, km, mir, msgr, xenl, xon,
> colors#256, cols#80, it#8, lines#24, lm#0,
> acsc=``aaffggiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~,
> bel=^G, blink=\E[5m, bold=\E[1m, civis=\E[?25l,
> clear=\E[H\E[2J, cnorm=\E[?25h, cr=^M,
> csr=\E[%i%p1%d;%p2%dr, cub=\E[%p1%dD, cub1=^H,
> cud=\E[%p1%dB, cud1=^J, cuf=\E[%p1%dC, cuf1=\E[C,
> cup=\E[%i%p1%d;%p2%dH, cuu=\E[%p1%dA, cuu1=\E[A,
> cvvis=\E[?25h, dch=\E[%p1%dP, dch1=\E[P, dl=\E[%p1%dM,
> dl1=\E[M, ech=\E[%p1%dX, ed=\E[J, el=\E[K,
> flash=\E[?5h\E[?5l, home=\E[H, ht=^I, hts=\EH,
> ich=\E[%p1%d@, ich1=\E[@, il=\E[%p1%dL, il1=\E[L, ind=^J,
> indn=\E[%p1%dS, is1=\E[?47l\E=\E[?1l,
> is2=\E[r\E[m\E[2J\E[H\E[?7h\E[?1;3;4;6l\E[4l,
> ka1=\EOw, ka3=\EOy, kb2=\EOu, kbs=\177, kc1=\EOq, kc3=\EOs,
> kcub1=\EOD, kcud1=\EOB, kcuf1=\EOC, kcuu1=\EOA,
> kdch1=\E[3~, kend=\E[8~, kf0=\E[21~, kf1=\E[11~,
> kf2=\E[12~, kf3=\E[13~, kf4=\E[14~, kf5=\E[15~, kf6=\E[17~,
> kf7=\E[18~, kf8=\E[19~, kf9=\E[20~, khome=\E[7~,
> kich1=\E[2~, knp=\E[6~, kpp=\E[5~, nel=^M^J, rc=\E8,
> rev=\E[7m, ri=\EM, rin=\E[%p1%dT, ritm=\E[23m, rmacs=\E(B,
> rmcup=\E[r\E[?1049l, rmir=\E[4l, rmkx=\E[?1l\E>,
> rmso=\E[27m, rmul=\E[24m, sc=\E7, setab=\E[48;5;%p1%dm,
> setaf=\E[38;5;%p1%dm, sgr0=\E[m\017, sitm=\E[3m,
> smacs=\E(0, smcup=\E[?1049h, smir=\E[4h, smkx=\E[?1h\E=,
> smso=\E[7m, smul=\E[4m, tbc=\E[3g,
>
> By the way, I'm surprised by the number of differences between this and
> the (irrelevant for now) terminfo entry in ported ncurses. However I
> have no idea how to test which one is the most accurate.
>
>
> Thanks for your help,
> Natacha Port?
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