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#!/usr/bin/python3
#
# Copyright (C) 2024 Apertium
#
# 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 2 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 <https://www.gnu.org/licenses/>.
#
import argparse
import sys
import xml.etree.ElementTree as ET
parser = argparse.ArgumentParser('Filter out language-specific rules from Apertium XML files')
parser.add_argument('lang', nargs='+', action='store')
parser.add_argument('infile', action='store')
parser.add_argument('outfile', action='store', default='-', nargs='?')
args = parser.parse_args()
Langs = set(args.lang)
SKIP_TAGS = [
'with-param', 'param', 'list-item', 'lit', 'lit-tag', 'attr-item', 'def-var'
]
def process_node(node):
to_remove = []
for ch in node:
if ch.tag in SKIP_TAGS:
continue
if 'v' in ch.attrib:
node_langs = set(ch.attrib['v'].split())
del ch.attrib['v']
if Langs <= node_langs:
process_node(ch)
else:
to_remove.append(ch)
else:
process_node(ch)
for ch in to_remove:
node.remove(ch)
infile = sys.stdin if args.infile == '-' else args.infile
outfile = sys.stdout.buffer if args.outfile == '-' else args.outfile
parser = ET.XMLParser(target=ET.TreeBuilder(insert_comments=True))
tree = ET.parse(infile, parser=parser)
process_node(tree.getroot())
tree.write(outfile, encoding='utf-8')
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