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bazarr/libs/ftfy/streamtester/__init__.py

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2018-10-31 16:08:29 +00:00
# coding: utf-8
"""
This file defines a general method for evaluating ftfy using data that arrives
in a stream. A concrete implementation of it is found in `twitter_tester.py`.
"""
from __future__ import print_function, unicode_literals
from ftfy import fix_text
from ftfy.fixes import fix_encoding, unescape_html
from ftfy.chardata import possible_encoding
class StreamTester:
"""
Take in a sequence of texts, and show the ones that will be changed by
ftfy. This will also periodically show updates, such as the proportion of
texts that changed.
"""
def __init__(self):
self.num_fixed = 0
self.count = 0
def check_ftfy(self, text, encoding_only=True):
"""
Given a single text input, check whether `ftfy.fix_text_encoding`
would change it. If so, display the change.
"""
self.count += 1
text = unescape_html(text)
if not possible_encoding(text, 'ascii'):
if encoding_only:
fixed = fix_encoding(text)
else:
fixed = fix_text(text, uncurl_quotes=False, fix_character_width=False)
if text != fixed:
# possibly filter common bots before printing
print('\nText:\t{text!r}\nFixed:\t{fixed!r}\n'.format(
text=text, fixed=fixed
))
self.num_fixed += 1
elif 'â€' in text or '\x80' in text:
print('\nNot fixed:\t{text!r}'.format(text=text))
# Print status updates once in a while
if self.count % 100 == 0:
print('.', end='', flush=True)
if self.count % 10000 == 0:
print('\n%d/%d fixed' % (self.num_fixed, self.count))