在Vim中能否指定两个t_ts值，或串联ANSI控制码实现双功能？

Great question! You absolutely can combine these ANSI control sequences to set both the tmux window name and the terminal/pane title from Vim—you just don’t need to try setting two t_ts values (which Vim doesn’t support natively). Here are two clean ways to make this work:

Method 1: Send Control Sequences Directly (Recommended) #

This approach uses a Vim function and autocmd to send both ANSI sequences whenever you switch buffers or windows, keeping your titles up to date automatically.

" Check if we're running inside tmux or a screen-compatible terminal
if exists('$TMUX') || &term ==# 'screen' || &term ==# 'screen-256color'
  " Trigger title updates when switching buffers or windows
  autocmd BufEnter,WinEnter * call UpdateTmuxTitles()

  function! UpdateTmuxTitles()
    " Get the current buffer's filename (or use '[No Name]' if empty)
    let l:pane_title = expand('%:t') !=# '' ? expand('%:t') : '[No Name]'
    " Get the current working directory's basename for the tmux window name
    let l:window_name = fnamemodify(getcwd(), ':t')

    " Send sequence to set tmux window name (screen-compatible control code)
    echo "\ek" . l:window_name . "\e\\"
    " Send sequence to set terminal/tmux pane title (standard ANSI code)
    echo "\e]0;" . l:pane_title . "\x07"
  endfunction
endif

Key Details: #

• \ek...\e\\: This is the screen/tmux-specific control sequence that updates the tmux window name (the label you see in tmux's status bar for the window).
• \e]0;...\x07: This is the standard ANSI control code that sets the terminal window title—tmux will also use this as the pane title unless you’ve configured it otherwise.
• The BufEnter and WinEnter autocmds ensure the titles refresh every time you switch buffers or windows.

Method 2: Reuse t_ts and t_fs (Alternative) #

If you prefer to work with Vim’s t_ts and t_fs options instead of direct escape sequences, you can redefine them sequentially to send both titles:

if exists('$TMUX') || &term ==# 'screen' || &term ==# 'screen-256color'
  autocmd BufEnter,WinEnter * call UpdateTmuxTitles()

  function! UpdateTmuxTitles()
    let l:pane_title = expand('%:t') !=# '' ? expand('%:t') : '[No Name]'
    let l:window_name = fnamemodify(getcwd(), ':t')

    " First set tmux window name
    set t_ts=^[k
    set t_fs=^G
    echo &t_ts . l:window_name . &t_fs

    " Then set terminal/pane title
    set t_ts=^[]0;
    set t_fs=^G
    echo &t_ts . l:pane_title . &t_fs
  endfunction
endif

Note: #

When editing this in Vim, you need to enter ^[ by pressing Ctrl+V then Escape, and ^G by pressing Ctrl+V then Ctrl+G (these are literal escape and control-G characters, not typed as ^[ or ^G).

Final Notes #

The first method is generally preferred because it avoids repeatedly modifying Vim’s options and is more straightforward. Both approaches will let you set both the tmux window name and the terminal/pane title from Vim without needing "dual" t_ts values.

内容的提问来源于stack exchange，提问作者Mike D