Sketchup img to material converter

#This script was created by Adam Beazley for public use and may be edited.
#http://www.abeazleydesign.com
#Directions
#Just click in the Import Materials button in the plugins menue and type in the location of all of you image files.
#This script will create a material and name it the same name as the image file and then use that file as the texture.
#all textures will come in at a standard scale and must be edited later
#after all materials and textures have been imported into the model, simply add them to your library
#you can then save the library as a .skm library file through sketchup.
#have fun!!!
#
### v1.1 TIG tweaks 29/12/05 ###
#-----------------------------------------------------------------------------
require 'sketchup.rb'
require 'SKMtools.rb'
require 'fileutils'
#-----------------------------------------------------------------------------
def materialimporter2
   model= Sketchup.active_model
   materials= model.materials
   model.start_operation ("Import Materials 2") ###undo - see commit at end
   pwd= Dir.getwd.split("/").join+"\\" ### fix for SU
   
   dry = UI.select_directory(title: "Image Import Folder", directory: pwd)
   return nil if not dry
   
   dryexpo = UI.select_directory(title: "SKM Export Folder", directory: pwd)
   return nil if not dryexpo
   
   cwd= Dir.chdir(dry)
   images= Dir["**/*.{jpg,png,tif,bmp,gif,tga,epx}"]### for all supported image file types
   
   for image in images
	  imgname = File.basename(image, ".*")
      #imgname= image.split(".")[0..-2].join(".") ### removes .jpg etc from end
      mat= materials.add imgname
      mat.texture = image
	  #mat.export_skm(dryexpo)
	  currentimgfolder = File.dirname(image)
	  currentimgfolder.sub! dry, ''
	  currentimgfolder = currentimgfolder.gsub(/[^A-Za-z0-9_\/-]/, "_")
	  expoFolder = File.join(File.join(dryexpo.split("\\")), currentimgfolder)
	  #expoFolder = expoFolder.gsub(/[^A-Za-z0-9_-]/, "_")
	  FileUtils.mkdir_p expoFolder
	  mat.export_skm(expoFolder)
	  mat.delete()
   end#for image###
   model.commit_operation ###undo all if needed
end#def###
if(not file_loaded?("massmaterialimporter2.rb"))
    menu=UI.menu("Plugins")
    menu.add_separator
    menu.add_item("Import Materials 2") { materialimporter2 }
end
#-----------------------------------------------------------------------------
file_loaded("massmaterialimporter2.rb")
#

def encode_ascii content
  array_utf8 = content.unpack('U*')
  array_enc = []
  array_utf8.each do |num|
	if num <= 0x7F
	  array_enc << num
	else
	  # Numeric entity (&#nnnn;); shard by  Stefan Scholl
	  array_enc.concat "&\##{num};".unpack('C*')
	end
  end
  array_enc.pack('C*')
end