mirror of https://github.com/apache/lucene.git
75 lines
2.5 KiB
Groovy
75 lines
2.5 KiB
Groovy
import com.ibm.icu.lang.UCharacter
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import com.ibm.icu.util.VersionInfo
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import java.nio.file.*
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def icuVersion = VersionInfo.ICU_VERSION.toString()
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def unicodeVersion = UCharacter.getUnicodeVersion().toString()
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def outputFile = Paths.get(args[0])
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List<String> chars = []
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for (int c = UCharacter.MIN_CODE_POINT; c <= UCharacter.MAX_CODE_POINT; c++) {
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if (UCharacter.isUWhiteSpace(c)) {
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chars.add(String.format(Locale.ROOT, "0x%04X", c))
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}
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}
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def whitespace = chars.join(", ")
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def code = """
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// DO NOT EDIT THIS FILE! Use "gradlew generateUnicodeProps tidy" to recreate.
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/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.lucene.analysis.util;
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import org.apache.lucene.util.Bits;
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import org.apache.lucene.util.SparseFixedBitSet;
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/**
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* This file contains unicode properties used by various {@link CharTokenizer}s.
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* The data was generated using ICU4J v${icuVersion}, unicode version: ${unicodeVersion}.
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*/
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public final class UnicodeProps {
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private UnicodeProps() {}
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/** Unicode version that was used to generate this file: {@value} */
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public static final String UNICODE_VERSION = "${unicodeVersion}";
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/** Bitset with Unicode WHITESPACE code points. */
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public static final Bits WHITESPACE = createBits(${whitespace});
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private static Bits createBits(final int... codepoints) {
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final int len = codepoints[codepoints.length - 1] + 1;
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final SparseFixedBitSet bitset = new SparseFixedBitSet(len);
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for (int i : codepoints) bitset.set(i);
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return new Bits() {
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@Override
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public boolean get(int index) {
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return index < len && bitset.get(index);
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}
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@Override
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public int length() {
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return ${String.format(Locale.ROOT, "0x%04X", UCharacter.MAX_CODE_POINT)} + 1;
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}
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};
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}
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}
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"""
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outputFile.setText(code.trim(), "UTF-8")
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