OSC52 copy with Vim

osc_copy.vim

" Clipboard integration by Operating System Controls from Vim

" Usage:
"  Yank something and run :OscCopy
"       or
"  Copy range in visual mode and run :'<,'>OscCopyRange

" From: https://stackoverflow.com/questions/1533565/how-to-get-visually-selected-text-in-vimscript
function! GetVisualSelection()
    let [lnum1, col1] = getpos("'<")[1:2]
    let [lnum2, col2] = getpos("'>")[1:2]
    let lines = getline(lnum1, lnum2)
    if lnum1 == 0 && lnum2 == 0 && col1 == 0 && col2 == 0
        return ''
    endif
    let lines[-1] = lines[-1][:col2 - (&selection == 'inclusive' ? 1 : 2)]
    let lines[0] = lines[0][col1 - 1:]
    return join(lines, "\n")
endfunction

function! OscCopyRange()
  let text = GetVisualSelection()
  let encodedText=text
  let encodedText=substitute(text, '\', '\\\\', "g")
  let encodedText=substitute(encodedText, "'", "'\\\\''", "g")
  let executeCmd="echo -n '".encodedText."' | base64 | tr -d '\\n'"
  let encodedText=system(executeCmd)
  if $TMUX != ""
    "tmux
    let executeCmd='echo -en "\x1bPtmux;\x1b\x1b]52;;'.encodedText.'\x1b\x1b\\\\\x1b\\" > /dev/tty'
  else
    let executeCmd='echo -en "\x1b]52;;'.encodedText.'\x1b\\" > /dev/tty'
  endif
  call system(executeCmd)
  redraw!
endfunction

function! OscCopy()
  let encodedText=@"
  let encodedText=substitute(encodedText, '\', '\\\\', "g")
  let encodedText=substitute(encodedText, "'", "'\\\\''", "g")
  let executeCmd="echo -n '".encodedText."' | base64 | tr -d '\\n'"
  let encodedText=system(executeCmd)
  if $TMUX != ""
    "tmux
    let executeCmd='echo -en "\x1bPtmux;\x1b\x1b]52;;'.encodedText.'\x1b\x1b\\\\\x1b\\" > /dev/tty'
  else
    let executeCmd='echo -en "\x1b]52;;'.encodedText.'\x1b\\" > /dev/tty'
  endif
  call system(executeCmd)
  redraw!
endfunction

command! -range OscCopyRange :call OscCopyRange()
command! OscCopy :call OscCopy()

plugin: https://github.com/greymd/oscyank.vim

I tried this and found that it did not give high fidelity copying, and would often just not work