VIM 对齐选定区域内的PHP数组元素 - 继续简陋

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function! AlignPHPMap() range

     let sep = '=>'

     let firstline = a:firstline

     let lastline = a:lastline

     let lines = {}

     for lineno in range(firstline, lastline)

          let lines[lineno] = match(getline(lineno), '\s*' . sep)

     endfor

     let maxLen = max(lines) + 1

     for lineno in range(firstline, lastline)

          if lines[lineno] != -1

               let spaces = repeat(' ', maxLen - lines[lineno])

               call setline(lineno, substitute(getline(lineno), '\s*' . sep . '\s*', spaces . sep . ' ', ''))

          endif

     endfor

endfunction

noremap => :call AlignPHPMap()