Python script to look for xml literal strings in Android resources, and convert them to string resources.

lit_to_res.py

#!/usr/bin/env python
# encoding: utf-8

import os
import sys
import xml.etree.ElementTree as ET
import re

idAttrib = '{http://schemas.android.com/apk/res/android}id'

def main(argv):
	output = open('strings.xml', 'w')	
	resources = []
	
	for arg in argv:
		parse_path(arg, resources)
		
	for res in resources:
		output.write("%s\n" % res)
		
	output.close()

def parse_path(path, resources):
	if os.path.isdir(path):		
		for root, dirs, files in os.walk(path):			
			for file in files:
				parse_path(os.path.join(root, file), resources)
	else:
		parse_file(path, resources)

def parse_file(file, resources):
	if not file.endswith('.xml'):
		return
		
	tree = ET.parse(file)
	root = tree.getroot()
	fileName = file[file.rfind('/')+1:]
	fileComment = '\n<!-- ' + fileName + ' -->'
	
	parse_node(root, resources, fileComment)

def parse_node(root, resources, fileComment):
	for child in root:
		parse_node(child, resources, fileComment)
			
		for key, value in child.attrib.iteritems():
			if not key.endswith('text'):
				continue
		
			if value.startswith('@'):
				continue
		
			if idAttrib in child.attrib:
				id = child.attrib[idAttrib]
				id = id[id.find('/')+1:]
			else:
				id = value.lower().replace(' ', '_')
				id = re.sub('[^a-z_]+', '', id)
				id = "_".join(id.split('_')[:3])
			
			res = '<string name="' + id + '">'+ value + '</string>'
			
			if res in resources:
				res = '<!-- @string/' + id + ' -->'
		
			if fileComment not in resources:
				resources.append(fileComment)

			resources.append(res)
	
	
if __name__ == '__main__':
	main(sys.argv[1:])