#! /usr/bin/env ruby
# coding: utf-8

require "filerenamer.rb"
#require "filerenamer/commander.rb"
#require "filerenamer/optionparser.rb"

OPTIONS = {}
op = FileRenamer::OptionParser.new
op.on("-g", "--global", "Global substitution."){ OPTIONS[:global] = true }
op.on("-r", "--reg-exp", "Regular expression."){ OPTIONS[:regexp] = true }
op.parse!(ARGV)

old_str = ARGV.shift
new_str = ARGV.shift

old_str = /#{old_str}/ if OPTIONS[:regexp]

fr = FileRenamer::Commander.new(op.options, ARGV)
fr.execute do |filename|
  if OPTIONS[:global]
    new_name = filename.gsub(old_str, new_str)
  else
    new_name = filename.sub(old_str, new_str)
  end
  new_name
end