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# Copyright 2017-2018 Michal Siedlaczek <michal.siedlaczek@gmail.com>
# SPDX-FileCopyrightText: Florian Bruhin (The Compiler) <mail@qutebrowser.org>
#
# SPDX-License-Identifier: GPL-3.0-or-later
"""Installing and configuring spell-checking for QtWebEngine."""
import glob
import os
import os.path
import re
from qutebrowser.utils import log, message, standarddir
_DICT_VERSION_RE = re.compile(r".+-(?P<version>[0-9]+-[0-9]+?)\.bdic")
def version(filename):
"""Extract the version number from the dictionary file name."""
match = _DICT_VERSION_RE.fullmatch(filename)
if match is None:
message.warning(
"Found a dictionary with a malformed name: {}".format(filename))
return None
return tuple(int(n) for n in match.group('version').split('-'))
def dictionary_dir():
"""Return the path (str) to the QtWebEngine's dictionaries directory."""
return os.path.join(standarddir.data(), 'qtwebengine_dictionaries')
def local_files(code):
"""Return all installed dictionaries for the given code.
The returned dictionaries are sorted by version, therefore the latest will
be the first element. The list will be empty if no dictionaries are found.
"""
pathname = os.path.join(dictionary_dir(), '{}*.bdic'.format(code))
matching_dicts = glob.glob(pathname)
versioned_dicts = []
for matching_dict in matching_dicts:
parsed_version = version(matching_dict)
if parsed_version is not None:
filename = os.path.basename(matching_dict)
log.config.debug('Found file for dict {}: {}'
.format(code, filename))
versioned_dicts.append((parsed_version, filename))
return [filename for version, filename
in sorted(versioned_dicts, reverse=True)]
def local_filename(code):
"""Return the newest installed dictionary for the given code.
Return the filename of the installed dictionary with the highest version
number or None if the dictionary is not installed.
"""
all_installed = local_files(code)
return all_installed[0] if all_installed else None
def init():
"""Initialize the dictionary path."""
dict_dir = dictionary_dir()
os.environ['QTWEBENGINE_DICTIONARIES_PATH'] = dict_dir
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