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#!/usr/bin/env python

# -*- encoding: utf-8 -*-

import argparse

import glob

import os

import unicodedata

from lxml import etree

# commandline arguments parsing (nobody use it, though)

parser = argparse.ArgumentParser(description="Validate rulesets against relaxng.xml")

parser.add_argument("--source_dir", default="src/chrome/content/rules")

args = parser.parse_args()

# XML ruleset files

files = glob.glob(os.path.join(args.source_dir, "*.xml"))

# read the schema file

relaxng_doc = etree.parse('utils/relaxng.xml')

relaxng = etree.RelaxNG(relaxng_doc)

exit_code = 0

print("Validation of rulesets against utils/relaxng.xml begins...")

for filename in sorted(files):

tree = etree.parse(filename)

if not relaxng.validate(tree):

exit_code = 1

e = relaxng.error_log.last_error

print(("%s %s:%s:%s: %s" % (e.level_name, e.filename, e.line, e.column, e.message)))

if exit_code == 0:

message = "Validation of rulesets against utils/relaxng.xml succeeded."

else:

message = "\nTwo very common reasons for this are the following:\n" \

" - missing caret (^) in 'from' attribute: it should be \"^http:\" and not \"http:\"\n" \

" - missing trailing slashes in 'from' or 'to' when specifying full hostnames: \n" \

" it should be \"https://eff.org/\" and not \"https://eff.org\"\n\n" \

"Validation of rulesets against utils/relaxng.xml failed."

print(message)

exit(exit_code)