1 /*
2 * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
1394 newPattern.appendCodePoint(c);
1395 }
1396 lastCodePoint = c;
1397 i += Character.charCount(c);
1398 }
1399 normalizedPattern = newPattern.toString();
1400 }
1401
1402 /**
1403 * Complete the character class being parsed and add a set
1404 * of alternations to it that will match the canonical equivalences
1405 * of the characters within the class.
1406 */
1407 private int normalizeCharClass(StringBuilder newPattern, int i) {
1408 StringBuilder charClass = new StringBuilder();
1409 StringBuilder eq = null;
1410 int lastCodePoint = -1;
1411 String result;
1412
1413 i++;
1414 charClass.append("[");
1415 while(true) {
1416 int c = normalizedPattern.codePointAt(i);
1417 StringBuilder sequenceBuffer;
1418
1419 if (c == ']' && lastCodePoint != '\\') {
1420 charClass.append((char)c);
1421 break;
1422 } else if (Character.getType(c) == Character.NON_SPACING_MARK) {
1423 sequenceBuffer = new StringBuilder();
1424 sequenceBuffer.appendCodePoint(lastCodePoint);
1425 while(Character.getType(c) == Character.NON_SPACING_MARK) {
1426 sequenceBuffer.appendCodePoint(c);
1427 i += Character.charCount(c);
1428 if (i >= normalizedPattern.length())
1429 break;
1430 c = normalizedPattern.codePointAt(i);
1431 }
1432 String ea = produceEquivalentAlternation(
1433 sequenceBuffer.toString());
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1 /*
2 * Copyright (c) 1999, 2017, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
1394 newPattern.appendCodePoint(c);
1395 }
1396 lastCodePoint = c;
1397 i += Character.charCount(c);
1398 }
1399 normalizedPattern = newPattern.toString();
1400 }
1401
1402 /**
1403 * Complete the character class being parsed and add a set
1404 * of alternations to it that will match the canonical equivalences
1405 * of the characters within the class.
1406 */
1407 private int normalizeCharClass(StringBuilder newPattern, int i) {
1408 StringBuilder charClass = new StringBuilder();
1409 StringBuilder eq = null;
1410 int lastCodePoint = -1;
1411 String result;
1412
1413 i++;
1414 if (i == normalizedPattern.length())
1415 throw error("Unclosed character class");
1416 charClass.append("[");
1417 while(true) {
1418 int c = normalizedPattern.codePointAt(i);
1419 StringBuilder sequenceBuffer;
1420
1421 if (c == ']' && lastCodePoint != '\\') {
1422 charClass.append((char)c);
1423 break;
1424 } else if (Character.getType(c) == Character.NON_SPACING_MARK) {
1425 sequenceBuffer = new StringBuilder();
1426 sequenceBuffer.appendCodePoint(lastCodePoint);
1427 while(Character.getType(c) == Character.NON_SPACING_MARK) {
1428 sequenceBuffer.appendCodePoint(c);
1429 i += Character.charCount(c);
1430 if (i >= normalizedPattern.length())
1431 break;
1432 c = normalizedPattern.codePointAt(i);
1433 }
1434 String ea = produceEquivalentAlternation(
1435 sequenceBuffer.toString());
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