ast-grep on current vim buffer

sg.vim

function! RunAstGrepOnBuffer()
  let l:input = input('sg/')
  if l:input == ''
    echo "No input provided"
    return
  endif
  let l:parts = split(l:input, '/')
  if len(l:parts) != 2
    echoerr "Invalid input format. Expected 'searchPattern/replacePattern'"
    return
  endif
  let l:searchPattern = l:parts[0]
  let l:replacePattern = l:parts[1]
  let l:command = 'sg run --lang=typescript --heading=never --color=never --stdin -U -p ' . shellescape(l:searchPattern) . ' -r ' . shellescape(l:replacePattern) . ''
  let l:output = system(l:command, join(getbufline('%', 1, '$'), "\n"))
  if v:shell_error
    echoerr "Error running ast-grep: " . l:output
    return
  endif
  let l:output_lines = split(l:output, "\n")[0:-3]

  call setline(1, output_lines)
endfunction

nnoremap <leader>bsg :call RunAstGrepOnBuffer()<CR>