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8187443: Forest Consolidation: Move files to unified layout
Reviewed-by: darcy, ihse
This commit is contained in:
Erik Joelsson
parent
270fe13182
commit
3789983e89
56923 changed files with 3 additions and 15727 deletions
205
src/java.base/share/classes/java/util/regex/Grapheme.java
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205
src/java.base/share/classes/java/util/regex/Grapheme.java
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/*
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* Copyright (c) 2016, 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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package java.util.regex;
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final class Grapheme {
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/**
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* Determines if there is an extended grapheme cluster boundary between two
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* continuing characters {@code cp1} and {@code cp2}.
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* <p>
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* See Unicode Standard Annex #29 Unicode Text Segmentation for the specification
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* for the extended grapheme cluster boundary rules
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*/
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static boolean isBoundary(int cp1, int cp2) {
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return rules[getType(cp1)][getType(cp2)];
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}
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// types
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private static final int OTHER = 0;
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private static final int CR = 1;
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private static final int LF = 2;
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private static final int CONTROL = 3;
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private static final int EXTEND = 4;
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private static final int RI = 5;
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private static final int PREPEND = 6;
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private static final int SPACINGMARK = 7;
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private static final int L = 8;
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private static final int V = 9;
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private static final int T = 10;
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private static final int LV = 11;
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private static final int LVT = 12;
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private static final int FIRST_TYPE = 0;
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private static final int LAST_TYPE = 12;
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private static boolean[][] rules;
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static {
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rules = new boolean[LAST_TYPE + 1][LAST_TYPE + 1];
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// default, any + any
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for (int i = FIRST_TYPE; i <= LAST_TYPE; i++)
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for (int j = FIRST_TYPE; j <= LAST_TYPE; j++)
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rules[i][j] = true;
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// GB 6 L x (L | V | LV | VT)
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rules[L][L] = false;
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rules[L][V] = false;
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rules[L][LV] = false;
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rules[L][LVT] = false;
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// GB 7 (LV | V) x (V | T)
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rules[LV][V] = false;
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rules[LV][T] = false;
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rules[V][V] = false;
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rules[V][T] = false;
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// GB 8 (LVT | T) x T
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rules[LVT][T] = false;
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rules[T][T] = false;
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// GB 8a RI x RI
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rules[RI][RI] = false;
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// GB 9 x Extend
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// GB 9a x Spacing Mark
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// GB 9b Prepend x
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for (int i = FIRST_TYPE; i <= LAST_TYPE; i++) {
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rules[i][EXTEND] = false;
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rules[i][SPACINGMARK] = false;
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rules[PREPEND][i] = false;
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}
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// GB 4 (Control | CR | LF) +
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// GB 5 + (Control | CR | LF)
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for (int i = FIRST_TYPE; i <= LAST_TYPE; i++)
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for (int j = CR; j <= CONTROL; j++) {
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rules[i][j] = true;
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rules[j][i] = true;
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}
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// GB 3 CR x LF
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rules[CR][LF] = false;
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// GB 10 Any + Any -> default
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}
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// Hangul syllables
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private static final int SYLLABLE_BASE = 0xAC00;
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private static final int LCOUNT = 19;
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private static final int VCOUNT = 21;
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private static final int TCOUNT = 28;
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private static final int NCOUNT = VCOUNT * TCOUNT; // 588
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private static final int SCOUNT = LCOUNT * NCOUNT; // 11172
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// #tr29: SpacingMark exceptions: The following (which have
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// General_Category = Spacing_Mark and would otherwise be included)
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// are specifically excluded
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private static boolean isExcludedSpacingMark(int cp) {
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return cp == 0x102B || cp == 0x102C || cp == 0x1038 ||
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cp >= 0x1062 && cp <= 0x1064 ||
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cp >= 0x1062 && cp <= 0x106D ||
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cp == 0x1083 ||
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cp >= 0x1087 && cp <= 0x108C ||
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cp == 0x108F ||
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cp >= 0x109A && cp <= 0x109C ||
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cp == 0x1A61 || cp == 0x1A63 || cp == 0x1A64 ||
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cp == 0xAA7B || cp == 0xAA7D;
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}
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@SuppressWarnings("fallthrough")
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private static int getType(int cp) {
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int type = Character.getType(cp);
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switch(type) {
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case Character.CONTROL:
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if (cp == 0x000D)
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return CR;
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if (cp == 0x000A)
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return LF;
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return CONTROL;
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case Character.UNASSIGNED:
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// NOTE: #tr29 lists "Unassigned and Default_Ignorable_Code_Point" as Control
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// but GraphemeBreakTest.txt lists u+0378/reserved-0378 as "Other"
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// so type it as "Other" to make the test happy
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if (cp == 0x0378)
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return OTHER;
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case Character.LINE_SEPARATOR:
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case Character.PARAGRAPH_SEPARATOR:
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case Character.SURROGATE:
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return CONTROL;
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case Character.FORMAT:
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if (cp == 0x200C || cp == 0x200D)
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return EXTEND;
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return CONTROL;
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case Character.NON_SPACING_MARK:
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case Character.ENCLOSING_MARK:
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// NOTE:
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// #tr29 "plus a few General_Category = Spacing_Mark needed for
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// canonical equivalence."
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// but for "extended grapheme clusters" support, there is no
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// need actually to diff "extend" and "spackmark" given GB9, GB9a
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return EXTEND;
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case Character.COMBINING_SPACING_MARK:
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if (isExcludedSpacingMark(cp))
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return OTHER;
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// NOTE:
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// 0x11720 and 0x11721 are mentioned in #tr29 as
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// OTHER_LETTER but it appears their category has been updated to
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// COMBING_SPACING_MARK already (verified in ver.8)
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return SPACINGMARK;
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case Character.OTHER_SYMBOL:
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if (cp >= 0x1F1E6 && cp <= 0x1F1FF)
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return RI;
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return OTHER;
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case Character.MODIFIER_LETTER:
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// WARNING:
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// not mentioned in #tr29 but listed in GraphemeBreakProperty.txt
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if (cp == 0xFF9E || cp == 0xFF9F)
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return EXTEND;
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return OTHER;
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case Character.OTHER_LETTER:
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if (cp == 0x0E33 || cp == 0x0EB3)
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return SPACINGMARK;
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// hangul jamo
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if (cp >= 0x1100 && cp <= 0x11FF) {
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if (cp <= 0x115F)
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return L;
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if (cp <= 0x11A7)
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return V;
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return T;
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}
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// hangul syllables
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int sindex = cp - SYLLABLE_BASE;
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if (sindex >= 0 && sindex < SCOUNT) {
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if (sindex % TCOUNT == 0)
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return LV;
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return LVT;
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}
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// hangul jamo_extended A
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if (cp >= 0xA960 && cp <= 0xA97C)
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return L;
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// hangul jamo_extended B
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if (cp >= 0xD7B0 && cp <= 0xD7C6)
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return V;
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if (cp >= 0xD7CB && cp <= 0xD7FB)
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return T;
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}
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return OTHER;
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}
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}
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