AlignEqual.rb

#!/usr/bin/env ruby
# command! -nargs=* -range AlignEqual <line1>,<line2>!ruby C:\Tools\bin\runtime\AlignEqual.rb <args>
Pattern = "(.*?)(#{ARGV.size.zero? ? "=" : ARGV[0]})(.*\n)"
@Lines = STDIN.read
# get max length
$MaxLen = 0
@Lines.each_line{ |line|
    $MaxLen = [$1.length, $MaxLen].max if (line =~ /#{Pattern}/)
}
# put lines
@Lines.each_line{ |line|
  if (line =~ /#{Pattern}/)
    puts $1 + " "*($MaxLen - $1.length) + $2 + $3
  else
    puts line
  end
}

# vim: et ts=2 sw=2