# robothon06
# ask for a folder
# find (nested) fontlab files in the folder
# open the fonts
# Demonstrates: recursive function,, dialog, os module

import os.path
from robofab.interface.all.dialogs import GetFolder
from robofab.world import OpenFont

# this function looks for fontlab files in a folder 
def walk(someFolder, extension):
	extension = extension.lower()
	files = []
	# the os module has tools to deal with
	# the operating system. This returns a list of names
	# of stuff in the folder you feed it:
	names = os.listdir(someFolder)
	for n in names:
			p = os.path.join(someFolder, n)
			# if this new thing is a folder itself,
			# call this function again, but now with the
			# new path to check that as well. This is
			# called recursion.
			if os.path.isdir(p):
				# add the results of the other folder
				# to the list
				files += walk(p, extension)
				continue
			# is it a file with the extension we want?
			# add it then!
			if n.lower().find(extension) <> -1:
				files.append(p)
	return files


yourFolder = GetFolder("Search a folder:")
if yourFolder is not None:
	fontPaths = walk(yourFolder, ".vfb")
	for path in fontPaths:
		OpenFont(path) 