Wrong characters displayed under tmux about fzf

[junegunn]

I suppose your $TERM is set to xterm-256color, right?
Try again after setting it to screen-256color as described here.

[wilywampa]

Sorry, I should've read that. Thanks!

[junegunn]

No problem. xterm-256color inside tmux is known to cause some visual glitches on other curses applications as well, such as Vim.

[unphased]

Any idea how I should address this issue? I need to use xterm-256color-italic to get italics in vim (for comments). So I want to override my $TERM only when fzf is in use.

I find that TERM=screen-256color fzf works wonderfully when I run it in the shell, so I'll just need to find out how to get it to do that with the key binds.

[junegunn]

@unphased Have you tried the method on the following page?
https://alexpearce.me/2014/05/italics-in-iterm2-vim-tmux/

[unphased]

I have not seen such a recommendation to make a screen-256color-italic terminfo (probably because I set up my italic term prior to May 2014), but it seems very straightforward to do so. Do you think this will also fix the tmux rendering problem?

My workaround is pretty simple and seems to be working for now -- I just edited the ~/.fzf.zsh and all its calls to fzf to TERM=screen-256color fzf.

Also, on Linux everything seems to render fine with xterm-256color-italic.

[junegunn]

@unphased I haven't tried the solution nor italics on terminal so I don't know, but probably. It looks like you won't have to edit ~/.fzf.zsh or Vim plugin if it works. Can you try it and let me know how it goes?

[unphased]

I would love to try it.. but I think i've spent way too much time (all of Saturday!) reorganizing and rewriting things for my environment, and I have to work on something else today.

Do you know if it is something that tmux does that specifically requires the $TERM to start with screen that addresses the issue?

I still have to keep my own unique ~/.fzf.zsh because I don't use fc -l 1 for the history list, i use my own python script for it. This way, it loads all my 50K and growing history entries from disk for browsing with fzf without having zsh load all of them every time I start zsh, saving memory and time.

[junegunn]

@unphased

Do you know if it is something that tmux does that specifically requires the $TERM to start with screen that addresses the issue?

Well, see here: http://tmux.cvs.sourceforge.net/viewvc/tmux/tmux/FAQ

******************************************************************************
* PLEASE NOTE: most display problems are due to incorrect TERM! Before       *
* reporting problems make SURE that TERM settings are correct inside and     *
* outside tmux.                                                              *
*                                                                            *
* Inside tmux TERM must be "screen" or similar (such as "screen-256color").  *
* Don't bother reporting problems where it isn't!                            *
*                                                                            *
* Outside, it must match your terminal: particularly, use "rxvt" for rxvt    *
* and derivatives.                                                           *
******************************************************************************