#!/usr/bin/ruby -w
# Output line and column numbers where "/" characters are found,
# with tab expansion.

x = y = 1
ARGF.each_char{|c|
   if c == "/"; print "#{ARGF.path}:#{y}:#{x}:: div\n"; end
   x += c == "\t" ? 8 - ~-x % 8 : 1
   y += c == "\n" ? x = 1 : 0
}