aeidon/languages.py¶
Source code for module aeidon.languages from file aeidon/languages.py.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 | # -*- coding: utf-8 -*-
# Copyright (C) 2005 Osmo Salomaa
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""Names and ISO 639 codes for languages and conversions between them."""
import aeidon
import os
_languages = {}
def code_to_name(code):
"""
Convert ISO 639 `code` to localized language name.
Raise :exc:`LookupError` if `code` not found.
"""
return aeidon.i18n.dgettext("iso_639", _languages[code])
def _init_languages():
"""Initialize the dictionary mapping codes to names."""
import xml.etree.ElementTree as ET
path = "/usr/share/xml/iso-codes/iso_639.xml"
if not os.path.isfile(path):
# Use local, possibly outdated copy, only as a fallback.
path = os.path.join(aeidon.DATA_DIR, "iso-codes", "iso_639.xml")
for element in ET.parse(path).findall("iso_639_entry"):
code = element.get("iso_639_1_code", None)
name = element.get("name", None)
if code is not None and name is not None:
_languages[code] = name
def is_valid(code):
"""Return ``True`` if `code` is a valid ISO 639 language code."""
return (code in _languages)
_init_languages()
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