Tiago Resende <trese...@lavabit.com> wrote:
> I'm gonna take a guess here. I think urxvt is reporting to support sitm
> when it actually doesn't, then screen-256color does its switch between
> sitm and smso, then less requests standout but gets italics instead,
> which urxvt simply refuses to render. I just reproduced it with xterm
> exporting TERM=rxvt-unicode-256color.

Fun.

> Can you run
> 
> $ echo '\e[3mitalics\e[m' '\e[7mstandout\e[m'
> 
> in and out of tmux? Both should come out as reverse in tmux , but I'm
> guessing italics will come out as regular text (that is, unrendered
> italics). If this also happens outside of tmux, then your urxvt really
> can't render italics, so if it's repoting \e[3m for sitm in its
> terminfo, that would be the actual culprit here.

Both do normal "italics" and reverse "standout".

> So, could you also attach output of
> 
> $ infocmp $TERM | grep sitm
> 
> ran on urxvt outside of tmux (or just replacing $TERM for what your
> urxvt normally uses)? If your urxvt really does not support italics, you
> should either get nothing or \e[7m instead.

% infocmp rxvt-unicode-256color | grep sitm
    sgr0=\E[m\E(B, sitm=\E[3m, smacs=\E(0, smam=\E[?7h,

--Ben


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