#!/usr/bin/env ruby
#
# Usage: texcat <file1> <file2> ...
#

def process_file(filename)
        contents = File.readlines(filename).join

        contents.gsub(/\\(include|input)\{(.*?)\}/) do
                process_file("#{$2}.tex")
        end
end

for file in ARGV
        puts process_file(file)
end