" this is well known Filename found in snipmate (and the other engines), but
" rewritten and documented :)
"
" optional arg1: string in which to replace '$1' by filename with extension
"   and path dropped. Defaults to $1
" optional arg2: return this value if buffer has no filename
"  But why not use the template in this case, too?
"  Doesn't make sense to me
fun! vim_snippets#Filename(...)
  let template = get(a:000, 0, "$1")
  let arg2 = get(a:000, 1, "")

  let basename = expand('%:t:r')

  if basename == ''
    return arg2
  else
    return substitute(template, '$1', basename, 'g')
  endif
endf

" original code:
" fun! Filename(...)
"     let filename = expand('%:t:r')
"     if filename == '' | return a:0 == 2 ? a:2 : '' | endif
"     return !a:0 || a:1 == '' ? filename : substitute(a:1, '$1', filename, 'g')
" endf