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http://git.eaglercraft.rip/eaglercraft/eaglercraft-1.8.git
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297 lines
8.5 KiB
Java
297 lines
8.5 KiB
Java
/*
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* Copyright (c) 2015, 2020, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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*******************************************************************************
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* Copyright (C) 2009-2014, International Business Machines
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* Corporation and others. All Rights Reserved.
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*******************************************************************************
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*/
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package jdk_internal.icu.impl;
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import java.io.IOException;
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import jdk_internal.icu.text.Normalizer2;
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public final class Norm2AllModes {
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// Public API dispatch via Normalizer2 subclasses -------------------------- ***
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// Normalizer2 implementation for the old UNORM_NONE.
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public static final class NoopNormalizer2 extends Normalizer2 {
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@Override
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public StringBuilder normalize(CharSequence src, StringBuilder dest) {
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if (dest != src) {
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dest.setLength(0);
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return dest.append(src);
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} else {
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throw new IllegalArgumentException();
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}
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}
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@Override
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public Appendable normalize(CharSequence src, Appendable dest) {
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if (dest != src) {
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try {
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return dest.append(src);
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} catch (IOException e) {
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throw new InternalError(e.toString(), e);
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}
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} else {
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throw new IllegalArgumentException();
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}
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}
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@Override
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public StringBuilder normalizeSecondAndAppend(StringBuilder first, CharSequence second) {
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if (first != second) {
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return first.append(second);
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} else {
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throw new IllegalArgumentException();
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}
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}
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@Override
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public StringBuilder append(StringBuilder first, CharSequence second) {
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if (first != second) {
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return first.append(second);
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} else {
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throw new IllegalArgumentException();
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}
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}
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@Override
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public String getDecomposition(int c) {
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return null;
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}
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// No need to override the default getRawDecomposition().
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@Override
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public boolean isNormalized(CharSequence s) {
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return true;
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}
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@Override
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public int spanQuickCheckYes(CharSequence s) {
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return s.length();
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}
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@Override
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public boolean hasBoundaryBefore(int c) {
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return true;
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}
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}
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// Intermediate class:
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// Has NormalizerImpl and does boilerplate argument checking and setup.
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public abstract static class Normalizer2WithImpl extends Normalizer2 {
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public Normalizer2WithImpl(NormalizerImpl ni) {
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impl = ni;
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}
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// normalize
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@Override
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public StringBuilder normalize(CharSequence src, StringBuilder dest) {
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if (dest == src) {
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throw new IllegalArgumentException();
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}
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dest.setLength(0);
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normalize(src, new NormalizerImpl.ReorderingBuffer(impl, dest, src.length()));
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return dest;
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}
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@Override
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public Appendable normalize(CharSequence src, Appendable dest) {
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if (dest == src) {
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throw new IllegalArgumentException();
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}
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NormalizerImpl.ReorderingBuffer buffer = new NormalizerImpl.ReorderingBuffer(impl, dest, src.length());
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normalize(src, buffer);
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buffer.flush();
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return dest;
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}
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protected abstract void normalize(CharSequence src, NormalizerImpl.ReorderingBuffer buffer);
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// normalize and append
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@Override
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public StringBuilder normalizeSecondAndAppend(StringBuilder first, CharSequence second) {
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return normalizeSecondAndAppend(first, second, true);
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}
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@Override
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public StringBuilder append(StringBuilder first, CharSequence second) {
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return normalizeSecondAndAppend(first, second, false);
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}
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public StringBuilder normalizeSecondAndAppend(StringBuilder first, CharSequence second, boolean doNormalize) {
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if (first == second) {
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throw new IllegalArgumentException();
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}
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normalizeAndAppend(second, doNormalize,
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new NormalizerImpl.ReorderingBuffer(impl, first, first.length() + second.length()));
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return first;
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}
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protected abstract void normalizeAndAppend(CharSequence src, boolean doNormalize,
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NormalizerImpl.ReorderingBuffer buffer);
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@Override
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public String getDecomposition(int c) {
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return impl.getDecomposition(c);
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}
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@Override
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public int getCombiningClass(int c) {
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return impl.getCC(impl.getNorm16(c));
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}
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// quick checks
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@Override
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public boolean isNormalized(CharSequence s) {
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return s.length() == spanQuickCheckYes(s);
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}
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public final NormalizerImpl impl;
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}
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public static final class DecomposeNormalizer2 extends Normalizer2WithImpl {
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public DecomposeNormalizer2(NormalizerImpl ni) {
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super(ni);
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}
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@Override
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protected void normalize(CharSequence src, NormalizerImpl.ReorderingBuffer buffer) {
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impl.decompose(src, 0, src.length(), buffer);
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}
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@Override
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protected void normalizeAndAppend(CharSequence src, boolean doNormalize,
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NormalizerImpl.ReorderingBuffer buffer) {
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impl.decomposeAndAppend(src, doNormalize, buffer);
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}
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@Override
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public int spanQuickCheckYes(CharSequence s) {
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return impl.decompose(s, 0, s.length(), null);
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}
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@Override
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public boolean hasBoundaryBefore(int c) {
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return impl.hasDecompBoundaryBefore(c);
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}
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}
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public static final class ComposeNormalizer2 extends Normalizer2WithImpl {
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public ComposeNormalizer2(NormalizerImpl ni, boolean fcc) {
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super(ni);
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onlyContiguous = fcc;
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}
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@Override
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protected void normalize(CharSequence src, NormalizerImpl.ReorderingBuffer buffer) {
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impl.compose(src, 0, src.length(), onlyContiguous, true, buffer);
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}
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@Override
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protected void normalizeAndAppend(CharSequence src, boolean doNormalize,
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NormalizerImpl.ReorderingBuffer buffer) {
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impl.composeAndAppend(src, doNormalize, onlyContiguous, buffer);
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}
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@Override
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public boolean isNormalized(CharSequence s) {
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// 5: small destCapacity for substring normalization
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return impl.compose(s, 0, s.length(), onlyContiguous, false,
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new NormalizerImpl.ReorderingBuffer(impl, new StringBuilder(), 5));
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}
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@Override
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public int spanQuickCheckYes(CharSequence s) {
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return impl.composeQuickCheck(s, 0, s.length(), onlyContiguous, true) >>> 1;
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}
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@Override
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public boolean hasBoundaryBefore(int c) {
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return impl.hasCompBoundaryBefore(c);
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}
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private final boolean onlyContiguous;
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}
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// instance cache ---------------------------------------------------------- ***
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private Norm2AllModes(NormalizerImpl ni) {
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impl = ni;
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comp = new ComposeNormalizer2(ni, false);
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decomp = new DecomposeNormalizer2(ni);
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}
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public final NormalizerImpl impl;
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public final ComposeNormalizer2 comp;
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public final DecomposeNormalizer2 decomp;
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private static Norm2AllModes getInstanceFromSingleton(Norm2AllModesSingleton singleton) {
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if (singleton.exception != null) {
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throw singleton.exception;
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}
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return singleton.allModes;
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}
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public static Norm2AllModes getNFCInstance() {
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return getInstanceFromSingleton(NFCSingleton.INSTANCE);
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}
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public static Norm2AllModes getNFKCInstance() {
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return getInstanceFromSingleton(NFKCSingleton.INSTANCE);
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}
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public static final NoopNormalizer2 NOOP_NORMALIZER2 = new NoopNormalizer2();
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private static final class Norm2AllModesSingleton {
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private Norm2AllModesSingleton(String name) {
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try {
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@SuppressWarnings("deprecation")
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String DATA_FILE_NAME = "/assets/eagler/icudt/" + name + ".nrm";
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NormalizerImpl impl = new NormalizerImpl().load(DATA_FILE_NAME);
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allModes = new Norm2AllModes(impl);
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} catch (RuntimeException e) {
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exception = e;
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}
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}
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private Norm2AllModes allModes;
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private RuntimeException exception;
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}
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private static final class NFCSingleton {
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private static final Norm2AllModesSingleton INSTANCE = new Norm2AllModesSingleton("nfc");
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}
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private static final class NFKCSingleton {
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private static final Norm2AllModesSingleton INSTANCE = new Norm2AllModesSingleton("nfkc");
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}
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}
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