/**
*******************************************************************************
* Copyright (C) 1996-2012, International Business Machines Corporation and
* others. All Rights Reserved.
*******************************************************************************
*/
package com.ibm.icu.impl;
import java.io.BufferedInputStream;
import java.io.DataInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Iterator;
import java.util.MissingResourceException;
import com.ibm.icu.lang.UCharacter;
import com.ibm.icu.lang.UCharacter.HangulSyllableType;
import com.ibm.icu.lang.UCharacter.NumericType;
import com.ibm.icu.lang.UCharacterCategory;
import com.ibm.icu.lang.UProperty;
import com.ibm.icu.lang.UScript;
import com.ibm.icu.text.UTF16;
import com.ibm.icu.text.UnicodeSet;
import com.ibm.icu.util.VersionInfo;
/**
* <p>
* Internal class used for Unicode character property database.
* </p>
* <p>
* This classes store binary data read from uprops.icu. It does not have the capability to parse the data into more high-level information.
* It only returns bytes of information when required.
* </p>
* <p>
* Due to the form most commonly used for retrieval, array of char is used to store the binary data.
* </p>
* <p>
* UCharacterPropertyDB also contains information on accessing indexes to significant points in the binary data.
* </p>
* <p>
* Responsibility for molding the binary data into more meaning form lies on <a href=UCharacter.html>UCharacter</a>.
* </p>
*
* @author Syn Wee Quek
* @since release 2.1, february 1st 2002
*/
@SuppressWarnings("deprecation")
public final class UCharacterProperty {
// public data members -----------------------------------------------
/*
* public singleton instance
*/
public static final UCharacterProperty INSTANCE;
/**
* Trie data
*/
public Trie2_16 m_trie_;
/**
* Unicode version
*/
public VersionInfo m_unicodeVersion_;
/**
* Latin capital letter i with dot above
*/
public static final char LATIN_CAPITAL_LETTER_I_WITH_DOT_ABOVE_ = 0x130;
/**
* Latin small letter i with dot above
*/
public static final char LATIN_SMALL_LETTER_DOTLESS_I_ = 0x131;
/**
* Latin lowercase i
*/
public static final char LATIN_SMALL_LETTER_I_ = 0x69;
/**
* Character type mask
*/
public static final int TYPE_MASK = 0x1F;
// uprops.h enum UPropertySource --------------------------------------- ***
/** No source, not a supported property. */
public static final int SRC_NONE = 0;
/** From uchar.c/uprops.icu main trie */
public static final int SRC_CHAR = 1;
/** From uchar.c/uprops.icu properties vectors trie */
public static final int SRC_PROPSVEC = 2;
/** From unames.c/unames.icu */
public static final int SRC_NAMES = 3;
/** From ucase.c/ucase.icu */
public static final int SRC_CASE = 4;
/** From ubidi_props.c/ubidi.icu */
public static final int SRC_BIDI = 5;
/** From uchar.c/uprops.icu main trie as well as properties vectors trie */
public static final int SRC_CHAR_AND_PROPSVEC = 6;
/** From ucase.c/ucase.icu as well as unorm.cpp/unorm.icu */
public static final int SRC_CASE_AND_NORM = 7;
/** From normalizer2impl.cpp/nfc.nrm */
public static final int SRC_NFC = 8;
/** From normalizer2impl.cpp/nfkc.nrm */
public static final int SRC_NFKC = 9;
/** From normalizer2impl.cpp/nfkc_cf.nrm */
public static final int SRC_NFKC_CF = 10;
/** From normalizer2impl.cpp/nfc.nrm canonical iterator data */
public static final int SRC_NFC_CANON_ITER = 11;
/** One more than the highest UPropertySource (SRC_) constant. */
public static final int SRC_COUNT = 12;
// public methods ----------------------------------------------------
/**
* Gets the main property value for code point ch.
*
* @param ch
* code point whose property value is to be retrieved
* @return property value of code point
*/
public final int getProperty(final int ch) {
return m_trie_.get(ch);
}
/**
* Gets the unicode additional properties. Java version of C u_getUnicodeProperties().
*
* @param codepoint
* codepoint whose additional properties is to be retrieved
* @param column
* The column index.
* @return unicode properties
*/
public int getAdditional(final int codepoint, final int column) {
assert column >= 0;
if (column >= m_additionalColumnsCount_) {
return 0;
}
return m_additionalVectors_[m_additionalTrie_.get(codepoint) + column];
}
static final int MY_MASK = UCharacterProperty.TYPE_MASK
& ((1 << UCharacterCategory.UPPERCASE_LETTER) | (1 << UCharacterCategory.LOWERCASE_LETTER)
| (1 << UCharacterCategory.TITLECASE_LETTER) | (1 << UCharacterCategory.MODIFIER_LETTER) | (1 << UCharacterCategory.OTHER_LETTER));
/**
* <p>
* Get the "age" of the code point.
* </p>
* <p>
* The "age" is the Unicode version when the code point was first designated (as a non-character or for Private Use) or assigned a
* character.
* </p>
* <p>
* This can be useful to avoid emitting code points to receiving processes that do not accept newer characters.
* </p>
* <p>
* The data is from the UCD file DerivedAge.txt.
* </p>
* <p>
* This API does not check the validity of the codepoint.
* </p>
*
* @param codepoint
* The code point.
* @return the Unicode version number
*/
public VersionInfo getAge(final int codepoint) {
int version = getAdditional(codepoint, 0) >> AGE_SHIFT_;
return VersionInfo.getInstance((version >> FIRST_NIBBLE_SHIFT_) & LAST_NIBBLE_MASK_, version & LAST_NIBBLE_MASK_, 0, 0);
}
private static final int GC_CN_MASK = getMask(UCharacter.UNASSIGNED);
private static final int GC_CC_MASK = getMask(UCharacter.CONTROL);
private static final int GC_CS_MASK = getMask(UCharacter.SURROGATE);
private static final int GC_ZS_MASK = getMask(UCharacter.SPACE_SEPARATOR);
private static final int GC_ZL_MASK = getMask(UCharacter.LINE_SEPARATOR);
private static final int GC_ZP_MASK = getMask(UCharacter.PARAGRAPH_SEPARATOR);
/** Mask constant for multiple UCharCategory bits (Z Separators). */
private static final int GC_Z_MASK = GC_ZS_MASK | GC_ZL_MASK | GC_ZP_MASK;
/**
* Checks if c is in [^\p{space}\p{gc=Control}\p{gc=Surrogate}\p{gc=Unassigned}] with space=\p{Whitespace} and Control=Cc. Implements
* UCHAR_POSIX_GRAPH.
*
* @internal
*/
private static final boolean isgraphPOSIX(final int c) {
/* \p{space}\p{gc=Control} == \p{gc=Z}\p{Control} */
/* comparing ==0 returns FALSE for the categories mentioned */
return (getMask(UCharacter.getType(c)) & (GC_CC_MASK | GC_CS_MASK | GC_CN_MASK | GC_Z_MASK)) == 0;
}
// binary properties --------------------------------------------------- ***
private class BinaryProperty {
int column; // SRC_PROPSVEC column, or "source" if mask==0
int mask;
BinaryProperty(final int column, final int mask) {
this.column = column;
this.mask = mask;
}
BinaryProperty(final int source) {
this.column = source;
this.mask = 0;
}
final int getSource() {
return mask == 0 ? column : SRC_PROPSVEC;
}
boolean contains(final int c) {
// systematic, directly stored properties
return (getAdditional(c, column) & mask) != 0;
}
}
private class CaseBinaryProperty extends BinaryProperty { // case mapping properties
int which;
CaseBinaryProperty(final int which) {
super(SRC_CASE);
this.which = which;
}
@Override
boolean contains(final int c) {
return UCaseProps.INSTANCE.hasBinaryProperty(c, which);
}
}
private class NormInertBinaryProperty extends BinaryProperty { // UCHAR_NF*_INERT properties
int which;
NormInertBinaryProperty(final int source, final int which) {
super(source);
this.which = which;
}
@Override
boolean contains(final int c) {
return Norm2AllModes.getN2WithImpl(which - UProperty.NFD_INERT).isInert(c);
}
}
BinaryProperty[] binProps = {
/*
* Binary-property implementations must be in order of corresponding UProperty,
* and there must be exactly one entry per binary UProperty.
*/
new BinaryProperty(1, (1 << ALPHABETIC_PROPERTY_)),
new BinaryProperty(1, (1 << ASCII_HEX_DIGIT_PROPERTY_)),
new BinaryProperty(SRC_BIDI) { // UCHAR_BIDI_CONTROL
@Override
boolean contains(final int c) {
return UBiDiProps.INSTANCE.isBidiControl(c);
}
},
new BinaryProperty(SRC_BIDI) { // UCHAR_BIDI_MIRRORED
@Override
boolean contains(final int c) {
return UBiDiProps.INSTANCE.isMirrored(c);
}
},
new BinaryProperty(1, (1 << DASH_PROPERTY_)),
new BinaryProperty(1, (1 << DEFAULT_IGNORABLE_CODE_POINT_PROPERTY_)),
new BinaryProperty(1, (1 << DEPRECATED_PROPERTY_)),
new BinaryProperty(1, (1 << DIACRITIC_PROPERTY_)),
new BinaryProperty(1, (1 << EXTENDER_PROPERTY_)),
new BinaryProperty(SRC_NFC) { // UCHAR_FULL_COMPOSITION_EXCLUSION
@Override
boolean contains(final int c) {
// By definition, Full_Composition_Exclusion is the same as NFC_QC=No.
Normalizer2Impl impl = Norm2AllModes.getNFCInstance().impl;
return impl.isCompNo(impl.getNorm16(c));
}
},
new BinaryProperty(1, (1 << GRAPHEME_BASE_PROPERTY_)),
new BinaryProperty(1, (1 << GRAPHEME_EXTEND_PROPERTY_)),
new BinaryProperty(1, (1 << GRAPHEME_LINK_PROPERTY_)),
new BinaryProperty(1, (1 << HEX_DIGIT_PROPERTY_)),
new BinaryProperty(1, (1 << HYPHEN_PROPERTY_)),
new BinaryProperty(1, (1 << ID_CONTINUE_PROPERTY_)),
new BinaryProperty(1, (1 << ID_START_PROPERTY_)),
new BinaryProperty(1, (1 << IDEOGRAPHIC_PROPERTY_)),
new BinaryProperty(1, (1 << IDS_BINARY_OPERATOR_PROPERTY_)),
new BinaryProperty(1, (1 << IDS_TRINARY_OPERATOR_PROPERTY_)),
new BinaryProperty(SRC_BIDI) { // UCHAR_JOIN_CONTROL
@Override
boolean contains(final int c) {
return UBiDiProps.INSTANCE.isJoinControl(c);
}
},
new BinaryProperty(1, (1 << LOGICAL_ORDER_EXCEPTION_PROPERTY_)),
new CaseBinaryProperty(UProperty.LOWERCASE),
new BinaryProperty(1, (1 << MATH_PROPERTY_)),
new BinaryProperty(1, (1 << NONCHARACTER_CODE_POINT_PROPERTY_)),
new BinaryProperty(1, (1 << QUOTATION_MARK_PROPERTY_)),
new BinaryProperty(1, (1 << RADICAL_PROPERTY_)),
new CaseBinaryProperty(UProperty.SOFT_DOTTED),
new BinaryProperty(1, (1 << TERMINAL_PUNCTUATION_PROPERTY_)),
new BinaryProperty(1, (1 << UNIFIED_IDEOGRAPH_PROPERTY_)),
new CaseBinaryProperty(UProperty.UPPERCASE),
new BinaryProperty(1, (1 << WHITE_SPACE_PROPERTY_)),
new BinaryProperty(1, (1 << XID_CONTINUE_PROPERTY_)),
new BinaryProperty(1, (1 << XID_START_PROPERTY_)),
new CaseBinaryProperty(UProperty.CASE_SENSITIVE),
new BinaryProperty(1, (1 << S_TERM_PROPERTY_)),
new BinaryProperty(1, (1 << VARIATION_SELECTOR_PROPERTY_)),
new NormInertBinaryProperty(SRC_NFC, UProperty.NFD_INERT),
new NormInertBinaryProperty(SRC_NFKC, UProperty.NFKD_INERT),
new NormInertBinaryProperty(SRC_NFC, UProperty.NFC_INERT),
new NormInertBinaryProperty(SRC_NFKC, UProperty.NFKC_INERT),
new BinaryProperty(SRC_NFC_CANON_ITER) { // UCHAR_SEGMENT_STARTER
@Override
boolean contains(final int c) {
return Norm2AllModes.getNFCInstance().impl.ensureCanonIterData().isCanonSegmentStarter(c);
}
},
new BinaryProperty(1, (1 << PATTERN_SYNTAX)),
new BinaryProperty(1, (1 << PATTERN_WHITE_SPACE)),
new BinaryProperty(SRC_CHAR_AND_PROPSVEC) { // UCHAR_POSIX_ALNUM
@Override
boolean contains(final int c) {
return UCharacter.isUAlphabetic(c) || UCharacter.isDigit(c);
}
},
new BinaryProperty(SRC_CHAR) { // UCHAR_POSIX_BLANK
@Override
boolean contains(final int c) {
// "horizontal space"
if (c <= 0x9f) {
return c == 9 || c == 0x20; /* TAB or SPACE */
} else {
/* Zs */
return UCharacter.getType(c) == UCharacter.SPACE_SEPARATOR;
}
}
},
new BinaryProperty(SRC_CHAR) { // UCHAR_POSIX_GRAPH
@Override
boolean contains(final int c) {
return isgraphPOSIX(c);
}
},
new BinaryProperty(SRC_CHAR) { // UCHAR_POSIX_PRINT
@Override
boolean contains(final int c) {
/*
* Checks if codepoint is in \p{graph}\p{blank} - \p{cntrl}.
*
* The only cntrl character in graph+blank is TAB (in blank).
* Here we implement (blank-TAB)=Zs instead of calling u_isblank().
*/
return (UCharacter.getType(c) == UCharacter.SPACE_SEPARATOR) || isgraphPOSIX(c);
}
},
new BinaryProperty(SRC_CHAR) { // UCHAR_POSIX_XDIGIT
@Override
boolean contains(final int c) {
/* check ASCII and Fullwidth ASCII a-fA-F */
if ((c <= 0x66 && c >= 0x41 && (c <= 0x46 || c >= 0x61))
|| (c >= 0xff21 && c <= 0xff46 && (c <= 0xff26 || c >= 0xff41))) {
return true;
}
return UCharacter.getType(c) == UCharacter.DECIMAL_DIGIT_NUMBER;
}
}, new CaseBinaryProperty(UProperty.CASED), new CaseBinaryProperty(UProperty.CASE_IGNORABLE),
new CaseBinaryProperty(UProperty.CHANGES_WHEN_LOWERCASED), new CaseBinaryProperty(UProperty.CHANGES_WHEN_UPPERCASED),
new CaseBinaryProperty(UProperty.CHANGES_WHEN_TITLECASED), new BinaryProperty(SRC_CASE_AND_NORM) { // UCHAR_CHANGES_WHEN_CASEFOLDED
@Override
boolean contains(int c) {
String nfd = Norm2AllModes.getNFCInstance().impl.getDecomposition(c);
if (nfd != null) {
/* c has a decomposition */
c = nfd.codePointAt(0);
if (Character.charCount(c) != nfd.length()) {
/* multiple code points */
c = -1;
}
} else if (c < 0) {
return false; /* protect against bad input */
}
if (c >= 0) {
/* single code point */
UCaseProps csp = UCaseProps.INSTANCE;
UCaseProps.dummyStringBuilder.setLength(0);
return csp.toFullFolding(c, UCaseProps.dummyStringBuilder, UCharacter.FOLD_CASE_DEFAULT) >= 0;
} else {
String folded = UCharacter.foldCase(nfd, true);
return !folded.equals(nfd);
}
}
}, new CaseBinaryProperty(UProperty.CHANGES_WHEN_CASEMAPPED), new BinaryProperty(SRC_NFKC_CF) { // UCHAR_CHANGES_WHEN_NFKC_CASEFOLDED
@Override
boolean contains(final int c) {
Normalizer2Impl kcf = Norm2AllModes.getNFKC_CFInstance().impl;
String src = UTF16.valueOf(c);
StringBuilder dest = new StringBuilder();
// Small destCapacity for NFKC_CF(c).
Normalizer2Impl.ReorderingBuffer buffer = new Normalizer2Impl.ReorderingBuffer(kcf, dest, 5);
kcf.compose(src, 0, src.length(), false, true, buffer);
return !Normalizer2Impl.UTF16Plus.equal(dest, src);
}
}, };
public boolean hasBinaryProperty(final int c, final int which) {
if (which < UProperty.BINARY_START || UProperty.BINARY_LIMIT <= which) {
// not a known binary property
return false;
} else {
return binProps[which].contains(c);
}
}
// int-value and enumerated properties --------------------------------- ***
public int getType(final int c) {
return getProperty(c) & TYPE_MASK;
}
/*
* Map some of the Grapheme Cluster Break values to Hangul Syllable Types.
* Hangul_Syllable_Type is fully redundant with a subset of Grapheme_Cluster_Break.
*/
private static final int /* UHangulSyllableType */gcbToHst[] = { HangulSyllableType.NOT_APPLICABLE, /* U_GCB_OTHER */
HangulSyllableType.NOT_APPLICABLE, /* U_GCB_CONTROL */
HangulSyllableType.NOT_APPLICABLE, /* U_GCB_CR */
HangulSyllableType.NOT_APPLICABLE, /* U_GCB_EXTEND */
HangulSyllableType.LEADING_JAMO, /* U_GCB_L */
HangulSyllableType.NOT_APPLICABLE, /* U_GCB_LF */
HangulSyllableType.LV_SYLLABLE, /* U_GCB_LV */
HangulSyllableType.LVT_SYLLABLE, /* U_GCB_LVT */
HangulSyllableType.TRAILING_JAMO, /* U_GCB_T */
HangulSyllableType.VOWEL_JAMO /* U_GCB_V */
/*
* Omit GCB values beyond what we need for hst.
* The code below checks for the array length.
*/
};
private class IntProperty {
int column; // SRC_PROPSVEC column, or "source" if mask==0
int mask;
int shift;
IntProperty(final int column, final int mask, final int shift) {
this.column = column;
this.mask = mask;
this.shift = shift;
}
IntProperty(final int source) {
this.column = source;
this.mask = 0;
}
final int getSource() {
return mask == 0 ? column : SRC_PROPSVEC;
}
int getValue(final int c) {
// systematic, directly stored properties
return (getAdditional(c, column) & mask) >>> shift;
}
int getMaxValue(final int which) {
return (getMaxValues(column) & mask) >>> shift;
}
}
private class BiDiIntProperty extends IntProperty {
BiDiIntProperty() {
super(SRC_BIDI);
}
@Override
int getMaxValue(final int which) {
return UBiDiProps.INSTANCE.getMaxValue(which);
}
}
private class CombiningClassIntProperty extends IntProperty {
CombiningClassIntProperty(final int source) {
super(source);
}
@Override
int getMaxValue(final int which) {
return 0xff;
}
}
private class NormQuickCheckIntProperty extends IntProperty { // UCHAR_NF*_QUICK_CHECK properties
int which;
int max;
NormQuickCheckIntProperty(final int source, final int which, final int max) {
super(source);
this.which = which;
this.max = max;
}
@Override
int getValue(final int c) {
return Norm2AllModes.getN2WithImpl(which - UProperty.NFD_QUICK_CHECK).getQuickCheck(c);
}
@Override
int getMaxValue(final int which) {
return max;
}
}
IntProperty intProps[] = {
new BiDiIntProperty() { // BIDI_CLASS
@Override
int getValue(final int c) {
return UBiDiProps.INSTANCE.getClass(c);
}
},
new IntProperty(0, BLOCK_MASK_, BLOCK_SHIFT_),
new CombiningClassIntProperty(SRC_NFC) { // CANONICAL_COMBINING_CLASS
@Override
int getValue(final int c) {
return Norm2AllModes.getNFCInstance().decomp.getCombiningClass(c);
}
},
new IntProperty(2, DECOMPOSITION_TYPE_MASK_, 0),
new IntProperty(0, EAST_ASIAN_MASK_, EAST_ASIAN_SHIFT_),
new IntProperty(SRC_CHAR) { // GENERAL_CATEGORY
@Override
int getValue(final int c) {
return getType(c);
}
@Override
int getMaxValue(final int which) {
return UCharacterCategory.CHAR_CATEGORY_COUNT - 1;
}
},
new BiDiIntProperty() { // JOINING_GROUP
@Override
int getValue(final int c) {
return UBiDiProps.INSTANCE.getJoiningGroup(c);
}
},
new BiDiIntProperty() { // JOINING_TYPE
@Override
int getValue(final int c) {
return UBiDiProps.INSTANCE.getJoiningType(c);
}
},
new IntProperty(2, LB_MASK, LB_SHIFT), // LINE_BREAK
new IntProperty(SRC_CHAR) { // NUMERIC_TYPE
@Override
int getValue(final int c) {
return ntvGetType(getNumericTypeValue(getProperty(c)));
}
@Override
int getMaxValue(final int which) {
return NumericType.COUNT - 1;
}
},
new IntProperty(0, SCRIPT_MASK_, 0) {
@Override
int getValue(final int c) {
return UScript.getScript(c);
}
},
new IntProperty(SRC_PROPSVEC) { // HANGUL_SYLLABLE_TYPE
@Override
int getValue(final int c) {
/* see comments on gcbToHst[] above */
int gcb = (getAdditional(c, 2) & GCB_MASK) >>> GCB_SHIFT;
if (gcb < gcbToHst.length) {
return gcbToHst[gcb];
} else {
return HangulSyllableType.NOT_APPLICABLE;
}
}
@Override
int getMaxValue(final int which) {
return HangulSyllableType.COUNT - 1;
}
},
// max=1=YES -- these are never "maybe", only "no" or "yes"
new NormQuickCheckIntProperty(SRC_NFC, UProperty.NFD_QUICK_CHECK, 1),
new NormQuickCheckIntProperty(SRC_NFKC, UProperty.NFKD_QUICK_CHECK, 1),
// max=2=MAYBE
new NormQuickCheckIntProperty(SRC_NFC, UProperty.NFC_QUICK_CHECK, 2),
new NormQuickCheckIntProperty(SRC_NFKC, UProperty.NFKC_QUICK_CHECK, 2), new CombiningClassIntProperty(SRC_NFC) { // LEAD_CANONICAL_COMBINING_CLASS
@Override
int getValue(final int c) {
return Norm2AllModes.getNFCInstance().impl.getFCD16(c) >> 8;
}
}, new CombiningClassIntProperty(SRC_NFC) { // TRAIL_CANONICAL_COMBINING_CLASS
@Override
int getValue(final int c) {
return Norm2AllModes.getNFCInstance().impl.getFCD16(c) & 0xff;
}
}, new IntProperty(2, GCB_MASK, GCB_SHIFT), // GRAPHEME_CLUSTER_BREAK
new IntProperty(2, SB_MASK, SB_SHIFT), // SENTENCE_BREAK
new IntProperty(2, WB_MASK, WB_SHIFT), // WORD_BREAK
};
public int getIntPropertyValue(final int c, final int which) {
if (which < UProperty.INT_START) {
if (UProperty.BINARY_START <= which && which < UProperty.BINARY_LIMIT) {
return binProps[which].contains(c) ? 1 : 0;
}
} else if (which < UProperty.INT_LIMIT) {
return intProps[which - UProperty.INT_START].getValue(c);
} else if (which == UProperty.GENERAL_CATEGORY_MASK) {
return getMask(getType(c));
}
return 0; // undefined
}
public int getIntPropertyMaxValue(final int which) {
if (which < UProperty.INT_START) {
if (UProperty.BINARY_START <= which && which < UProperty.BINARY_LIMIT) {
return 1; // maximum TRUE for all binary properties
}
} else if (which < UProperty.INT_LIMIT) {
return intProps[which - UProperty.INT_START].getMaxValue(which);
}
return -1; // undefined
}
public final int getSource(final int which) {
if (which < UProperty.BINARY_START) {
return SRC_NONE; /* undefined */
} else if (which < UProperty.BINARY_LIMIT) {
return binProps[which].getSource();
} else if (which < UProperty.INT_START) {
return SRC_NONE; /* undefined */
} else if (which < UProperty.INT_LIMIT) {
return intProps[which - UProperty.INT_START].getSource();
} else if (which < UProperty.STRING_START) {
switch (which) {
case UProperty.GENERAL_CATEGORY_MASK:
case UProperty.NUMERIC_VALUE:
return SRC_CHAR;
default:
return SRC_NONE;
}
} else if (which < UProperty.STRING_LIMIT) {
switch (which) {
case UProperty.AGE:
return SRC_PROPSVEC;
case UProperty.BIDI_MIRRORING_GLYPH:
return SRC_BIDI;
case UProperty.CASE_FOLDING:
case UProperty.LOWERCASE_MAPPING:
case UProperty.SIMPLE_CASE_FOLDING:
case UProperty.SIMPLE_LOWERCASE_MAPPING:
case UProperty.SIMPLE_TITLECASE_MAPPING:
case UProperty.SIMPLE_UPPERCASE_MAPPING:
case UProperty.TITLECASE_MAPPING:
case UProperty.UPPERCASE_MAPPING:
return SRC_CASE;
case UProperty.ISO_COMMENT:
case UProperty.NAME:
case UProperty.UNICODE_1_NAME:
return SRC_NAMES;
default:
return SRC_NONE;
}
} else {
switch (which) {
case UProperty.SCRIPT_EXTENSIONS:
return SRC_PROPSVEC;
default:
return SRC_NONE; /* undefined */
}
}
}
/**
* Forms a supplementary code point from the argument character<br>
* Note this is for internal use hence no checks for the validity of the surrogate characters are done
*
* @param lead
* lead surrogate character
* @param trail
* trailing surrogate character
* @return code point of the supplementary character
*/
public static int getRawSupplementary(final char lead, final char trail) {
return (lead << LEAD_SURROGATE_SHIFT_) + trail + SURROGATE_OFFSET_;
}
/**
* <p>
* Unicode property names and property value names are compared "loosely". Property[Value]Aliases.txt say: <quote> "With loose matching
* of property names, the case distinctions, whitespace, and '_' are ignored." </quote>
* </p>
* <p>
* This function does just that, for ASCII (char *) name strings. It is almost identical to ucnv_compareNames() but also ignores ASCII
* White_Space characters (U+0009..U+000d).
* </p>
*
* @param name1
* name to compare
* @param name2
* name to compare
* @return 0 if names are equal, < 0 if name1 is less than name2 and > 0 if name1 is greater than name2.
*/
/* to be implemented in 2.4
* public static int comparePropertyNames(String name1, String name2)
{
int result = 0;
int i1 = 0;
int i2 = 0;
while (true) {
char ch1 = 0;
char ch2 = 0;
// Ignore delimiters '-', '_', and ASCII White_Space
if (i1 < name1.length()) {
ch1 = name1.charAt(i1 ++);
}
while (ch1 == '-' || ch1 == '_' || ch1 == ' ' || ch1 == '\t'
|| ch1 == '\n' // synwee what is || ch1 == '\v'
|| ch1 == '\f' || ch1=='\r') {
if (i1 < name1.length()) {
ch1 = name1.charAt(i1 ++);
}
else {
ch1 = 0;
}
}
if (i2 < name2.length()) {
ch2 = name2.charAt(i2 ++);
}
while (ch2 == '-' || ch2 == '_' || ch2 == ' ' || ch2 == '\t'
|| ch2 == '\n' // synwee what is || ch1 == '\v'
|| ch2 == '\f' || ch2=='\r') {
if (i2 < name2.length()) {
ch2 = name2.charAt(i2 ++);
}
else {
ch2 = 0;
}
}
// If we reach the ends of both strings then they match
if (ch1 == 0 && ch2 == 0) {
return 0;
}
// Case-insensitive comparison
if (ch1 != ch2) {
result = Character.toLowerCase(ch1)
- Character.toLowerCase(ch2);
if (result != 0) {
return result;
}
}
}
}
*/
/**
* Get the the maximum values for some enum/int properties.
*
* @return maximum values for the integer properties.
*/
public int getMaxValues(final int column) {
// return m_maxBlockScriptValue_;
switch (column) {
case 0:
return m_maxBlockScriptValue_;
case 2:
return m_maxJTGValue_;
default:
return 0;
}
}
/**
* Gets the type mask
*
* @param type
* character type
* @return mask
*/
public static final int getMask(final int type) {
return 1 << type;
}
/**
* Returns the digit values of characters like 'A' - 'Z', normal, half-width and full-width. This method assumes that the other digit
* characters are checked by the calling method.
*
* @param ch
* character to test
* @return -1 if ch is not a character of the form 'A' - 'Z', otherwise its corresponding digit will be returned.
*/
public static int getEuropeanDigit(final int ch) {
if ((ch > 0x7a && ch < 0xff21) || ch < 0x41 || (ch > 0x5a && ch < 0x61) || ch > 0xff5a || (ch > 0xff3a && ch < 0xff41)) {
return -1;
}
if (ch <= 0x7a) {
// ch >= 0x41 or ch < 0x61
return ch + 10 - ((ch <= 0x5a) ? 0x41 : 0x61);
}
// ch >= 0xff21
if (ch <= 0xff3a) {
return ch + 10 - 0xff21;
}
// ch >= 0xff41 && ch <= 0xff5a
return ch + 10 - 0xff41;
}
public int digit(final int c) {
int value = getNumericTypeValue(getProperty(c)) - NTV_DECIMAL_START_;
if (value <= 9) {
return value;
} else {
return -1;
}
}
public int getNumericValue(final int c) {
// slightly pruned version of getUnicodeNumericValue(), plus getEuropeanDigit()
int ntv = getNumericTypeValue(getProperty(c));
if (ntv == NTV_NONE_) {
return getEuropeanDigit(c);
} else if (ntv < NTV_DIGIT_START_) {
/* decimal digit */
return ntv - NTV_DECIMAL_START_;
} else if (ntv < NTV_NUMERIC_START_) {
/* other digit */
return ntv - NTV_DIGIT_START_;
} else if (ntv < NTV_FRACTION_START_) {
/* small integer */
return ntv - NTV_NUMERIC_START_;
} else if (ntv < NTV_LARGE_START_) {
/* fraction */
return -2;
} else if (ntv < NTV_BASE60_START_) {
/* large, single-significant-digit integer */
int mant = (ntv >> 5) - 14;
int exp = (ntv & 0x1f) + 2;
if (exp < 9 || (exp == 9 && mant <= 2)) {
int numValue = mant;
do {
numValue *= 10;
} while (--exp > 0);
return numValue;
} else {
return -2;
}
} else if (ntv < NTV_RESERVED_START_) {
/* sexagesimal (base 60) integer */
int numValue = (ntv >> 2) - 0xbf;
int exp = (ntv & 3) + 1;
switch (exp) {
case 4:
numValue *= 60 * 60 * 60 * 60;
break;
case 3:
numValue *= 60 * 60 * 60;
break;
case 2:
numValue *= 60 * 60;
break;
case 1:
numValue *= 60;
break;
case 0:
default:
break;
}
return numValue;
} else {
/* reserved */
return -2;
}
}
public double getUnicodeNumericValue(final int c) {
// equivalent to c version double u_getNumericValue(UChar32 c)
int ntv = getNumericTypeValue(getProperty(c));
if (ntv == NTV_NONE_) {
return UCharacter.NO_NUMERIC_VALUE;
} else if (ntv < NTV_DIGIT_START_) {
/* decimal digit */
return ntv - NTV_DECIMAL_START_;
} else if (ntv < NTV_NUMERIC_START_) {
/* other digit */
return ntv - NTV_DIGIT_START_;
} else if (ntv < NTV_FRACTION_START_) {
/* small integer */
return ntv - NTV_NUMERIC_START_;
} else if (ntv < NTV_LARGE_START_) {
/* fraction */
int numerator = (ntv >> 4) - 12;
int denominator = (ntv & 0xf) + 1;
return (double) numerator / denominator;
} else if (ntv < NTV_BASE60_START_) {
/* large, single-significant-digit integer */
double numValue;
int mant = (ntv >> 5) - 14;
int exp = (ntv & 0x1f) + 2;
numValue = mant;
/* multiply by 10^exp without math.h */
while (exp >= 4) {
numValue *= 10000.;
exp -= 4;
}
switch (exp) {
case 3:
numValue *= 1000.;
break;
case 2:
numValue *= 100.;
break;
case 1:
numValue *= 10.;
break;
case 0:
default:
break;
}
return numValue;
} else if (ntv < NTV_RESERVED_START_) {
/* sexagesimal (base 60) integer */
int numValue = (ntv >> 2) - 0xbf;
int exp = (ntv & 3) + 1;
switch (exp) {
case 4:
numValue *= 60 * 60 * 60 * 60;
break;
case 3:
numValue *= 60 * 60 * 60;
break;
case 2:
numValue *= 60 * 60;
break;
case 1:
numValue *= 60;
break;
case 0:
default:
break;
}
return numValue;
} else {
/* reserved */
return UCharacter.NO_NUMERIC_VALUE;
}
}
// protected variables -----------------------------------------------
/**
* Extra property trie
*/
Trie2_16 m_additionalTrie_;
/**
* Extra property vectors, 1st column for age and second for binary properties.
*/
int m_additionalVectors_[];
/**
* Number of additional columns
*/
int m_additionalColumnsCount_;
/**
* Maximum values for block, bits used as in vector word 0
*/
int m_maxBlockScriptValue_;
/**
* Maximum values for script, bits used as in vector word 0
*/
int m_maxJTGValue_;
/**
* Script_Extensions data
*/
public char[] m_scriptExtensions_;
// private variables -------------------------------------------------
/**
* Default name of the datafile
*/
private static final String DATA_FILE_NAME_ = ICUResourceBundle.ICU_BUNDLE + "/uprops.icu";
/**
* Default buffer size of datafile
*/
private static final int DATA_BUFFER_SIZE_ = 25000;
/**
* Shift value for lead surrogate to form a supplementary character.
*/
private static final int LEAD_SURROGATE_SHIFT_ = 10;
/**
* Offset to add to combined surrogate pair to avoid masking.
*/
private static final int SURROGATE_OFFSET_ = UTF16.SUPPLEMENTARY_MIN_VALUE - (UTF16.SURROGATE_MIN_VALUE << LEAD_SURROGATE_SHIFT_)
- UTF16.TRAIL_SURROGATE_MIN_VALUE;
// property data constants -------------------------------------------------
/**
* Numeric types and values in the main properties words.
*/
private static final int NUMERIC_TYPE_VALUE_SHIFT_ = 6;
private static final int getNumericTypeValue(final int props) {
return props >> NUMERIC_TYPE_VALUE_SHIFT_;
}
/* constants for the storage form of numeric types and values */
/** No numeric value. */
private static final int NTV_NONE_ = 0;
/** Decimal digits: nv=0..9 */
private static final int NTV_DECIMAL_START_ = 1;
/** Other digits: nv=0..9 */
private static final int NTV_DIGIT_START_ = 11;
/** Small integers: nv=0..154 */
private static final int NTV_NUMERIC_START_ = 21;
/** Fractions: ((ntv>>4)-12) / ((ntv&0xf)+1) = -1..17 / 1..16 */
private static final int NTV_FRACTION_START_ = 0xb0;
/**
* Large integers: ((ntv>>5)-14) * 10^((ntv&0x1f)+2) = (1..9)*(10^2..10^33) (only one significant decimal digit)
*/
private static final int NTV_LARGE_START_ = 0x1e0;
/**
* Sexagesimal numbers: ((ntv>>2)-0xbf) * 60^((ntv&3)+1) = (1..9)*(60^1..60^4)
*/
private static final int NTV_BASE60_START_ = 0x300;
/** No numeric value (yet). */
private static final int NTV_RESERVED_START_ = NTV_BASE60_START_ + 36; // 0x300+9*4=0x324
private static final int ntvGetType(final int ntv) {
return (ntv == NTV_NONE_) ? NumericType.NONE : (ntv < NTV_DIGIT_START_) ? NumericType.DECIMAL
: (ntv < NTV_NUMERIC_START_) ? NumericType.DIGIT : NumericType.NUMERIC;
}
/*
* Properties in vector word 0
* Bits
* 31..24 DerivedAge version major/minor one nibble each
* 23..22 3..1: Bits 7..0 = Script_Extensions index
* 3: Script value from Script_Extensions
* 2: Script=Inherited
* 1: Script=Common
* 0: Script=bits 7..0
* 21..20 reserved
* 19..17 East Asian Width
* 16.. 8 UBlockCode
* 7.. 0 UScriptCode
*/
/**
* Script_Extensions: mask includes Script
*/
public static final int SCRIPT_X_MASK = 0x00c000ff;
//private static final int SCRIPT_X_SHIFT = 22;
/**
* Integer properties mask and shift values for East Asian cell width. Equivalent to icu4c UPROPS_EA_MASK
*/
private static final int EAST_ASIAN_MASK_ = 0x000e0000;
/**
* Integer properties mask and shift values for East Asian cell width. Equivalent to icu4c UPROPS_EA_SHIFT
*/
private static final int EAST_ASIAN_SHIFT_ = 17;
/**
* Integer properties mask and shift values for blocks. Equivalent to icu4c UPROPS_BLOCK_MASK
*/
private static final int BLOCK_MASK_ = 0x0001ff00;
/**
* Integer properties mask and shift values for blocks. Equivalent to icu4c UPROPS_BLOCK_SHIFT
*/
private static final int BLOCK_SHIFT_ = 8;
/**
* Integer properties mask and shift values for scripts. Equivalent to icu4c UPROPS_SHIFT_MASK
*/
public static final int SCRIPT_MASK_ = 0x000000ff;
/* SCRIPT_X_WITH_COMMON must be the lowest value that involves Script_Extensions. */
public static final int SCRIPT_X_WITH_COMMON = 0x400000;
public static final int SCRIPT_X_WITH_INHERITED = 0x800000;
public static final int SCRIPT_X_WITH_OTHER = 0xc00000;
/**
* Additional properties used in internal trie data
*/
/*
* Properties in vector word 1
* Each bit encodes one binary property.
* The following constants represent the bit number, use 1<<UPROPS_XYZ.
* UPROPS_BINARY_1_TOP<=32!
*
* Keep this list of property enums in sync with
* propListNames[] in icu/source/tools/genprops/props2.c!
*
* ICU 2.6/uprops format version 3.2 stores full properties instead of "Other_".
*/
private static final int WHITE_SPACE_PROPERTY_ = 0;
private static final int DASH_PROPERTY_ = 1;
private static final int HYPHEN_PROPERTY_ = 2;
private static final int QUOTATION_MARK_PROPERTY_ = 3;
private static final int TERMINAL_PUNCTUATION_PROPERTY_ = 4;
private static final int MATH_PROPERTY_ = 5;
private static final int HEX_DIGIT_PROPERTY_ = 6;
private static final int ASCII_HEX_DIGIT_PROPERTY_ = 7;
private static final int ALPHABETIC_PROPERTY_ = 8;
private static final int IDEOGRAPHIC_PROPERTY_ = 9;
private static final int DIACRITIC_PROPERTY_ = 10;
private static final int EXTENDER_PROPERTY_ = 11;
private static final int NONCHARACTER_CODE_POINT_PROPERTY_ = 12;
private static final int GRAPHEME_EXTEND_PROPERTY_ = 13;
private static final int GRAPHEME_LINK_PROPERTY_ = 14;
private static final int IDS_BINARY_OPERATOR_PROPERTY_ = 15;
private static final int IDS_TRINARY_OPERATOR_PROPERTY_ = 16;
private static final int RADICAL_PROPERTY_ = 17;
private static final int UNIFIED_IDEOGRAPH_PROPERTY_ = 18;
private static final int DEFAULT_IGNORABLE_CODE_POINT_PROPERTY_ = 19;
private static final int DEPRECATED_PROPERTY_ = 20;
private static final int LOGICAL_ORDER_EXCEPTION_PROPERTY_ = 21;
private static final int XID_START_PROPERTY_ = 22;
private static final int XID_CONTINUE_PROPERTY_ = 23;
private static final int ID_START_PROPERTY_ = 24;
private static final int ID_CONTINUE_PROPERTY_ = 25;
private static final int GRAPHEME_BASE_PROPERTY_ = 26;
private static final int S_TERM_PROPERTY_ = 27;
private static final int VARIATION_SELECTOR_PROPERTY_ = 28;
private static final int PATTERN_SYNTAX = 29; /* new in ICU 3.4 and Unicode 4.1 */
private static final int PATTERN_WHITE_SPACE = 30;
/*
* Properties in vector word 2
* Bits
* 31..26 reserved
* 25..20 Line Break
* 19..15 Sentence Break
* 14..10 Word Break
* 9.. 5 Grapheme Cluster Break
* 4.. 0 Decomposition Type
*/
private static final int LB_MASK = 0x03f00000;
private static final int LB_SHIFT = 20;
private static final int SB_MASK = 0x000f8000;
private static final int SB_SHIFT = 15;
private static final int WB_MASK = 0x00007c00;
private static final int WB_SHIFT = 10;
private static final int GCB_MASK = 0x000003e0;
private static final int GCB_SHIFT = 5;
/**
* Integer properties mask for decomposition type. Equivalent to icu4c UPROPS_DT_MASK.
*/
private static final int DECOMPOSITION_TYPE_MASK_ = 0x0000001f;
/**
* First nibble shift
*/
private static final int FIRST_NIBBLE_SHIFT_ = 0x4;
/**
* Second nibble mask
*/
private static final int LAST_NIBBLE_MASK_ = 0xF;
/**
* Age value shift
*/
private static final int AGE_SHIFT_ = 24;
// private constructors --------------------------------------------------
/**
* Constructor
*
* @exception IOException
* thrown when data reading fails or data corrupted
*/
private UCharacterProperty() throws IOException {
// consistency check
if (binProps.length != UProperty.BINARY_LIMIT) {
throw new RuntimeException("binProps.length!=UProperty.BINARY_LIMIT");
}
if (intProps.length != (UProperty.INT_LIMIT - UProperty.INT_START)) {
throw new RuntimeException("intProps.length!=(UProperty.INT_LIMIT-UProperty.INT_START)");
}
// jar access
InputStream is = ICUData.getRequiredStream(DATA_FILE_NAME_);
BufferedInputStream bis = new BufferedInputStream(is, DATA_BUFFER_SIZE_);
m_unicodeVersion_ = ICUBinary.readHeaderAndDataVersion(bis, DATA_FORMAT, new IsAcceptable());
DataInputStream ds = new DataInputStream(bis);
// Read or skip the 16 indexes.
int propertyOffset = ds.readInt();
/* exceptionOffset = */ds.readInt();
/* caseOffset = */ds.readInt();
int additionalOffset = ds.readInt();
int additionalVectorsOffset = ds.readInt();
m_additionalColumnsCount_ = ds.readInt();
int scriptExtensionsOffset = ds.readInt();
int reservedOffset7 = ds.readInt();
/* reservedOffset8 = */ds.readInt();
/* dataTopOffset = */ds.readInt();
m_maxBlockScriptValue_ = ds.readInt();
m_maxJTGValue_ = ds.readInt();
ds.skipBytes((16 - 12) << 2);
// read the main properties trie
m_trie_ = Trie2_16.createFromSerialized(ds);
int expectedTrieLength = (propertyOffset - 16) * 4;
int trieLength = m_trie_.getSerializedLength();
if (trieLength > expectedTrieLength) {
throw new IOException("uprops.icu: not enough bytes for main trie");
}
// skip padding after trie bytes
ds.skipBytes(expectedTrieLength - trieLength);
// skip unused intervening data structures
ds.skipBytes((additionalOffset - propertyOffset) * 4);
if (m_additionalColumnsCount_ > 0) {
// reads the additional property block
m_additionalTrie_ = Trie2_16.createFromSerialized(ds);
expectedTrieLength = (additionalVectorsOffset - additionalOffset) * 4;
trieLength = m_additionalTrie_.getSerializedLength();
if (trieLength > expectedTrieLength) {
throw new IOException("uprops.icu: not enough bytes for additional-properties trie");
}
// skip padding after trie bytes
ds.skipBytes(expectedTrieLength - trieLength);
// additional properties
int size = scriptExtensionsOffset - additionalVectorsOffset;
m_additionalVectors_ = new int[size];
for (int i = 0; i < size; i++) {
m_additionalVectors_[i] = ds.readInt();
}
}
// Script_Extensions
int numChars = (reservedOffset7 - scriptExtensionsOffset) * 2;
if (numChars > 0) {
m_scriptExtensions_ = new char[numChars];
for (int i = 0; i < numChars; ++i) {
m_scriptExtensions_[i] = ds.readChar();
}
}
is.close();
}
private static final class IsAcceptable implements ICUBinary.Authenticate {
// @Override when we switch to Java 6
public boolean isDataVersionAcceptable(final byte version[]) {
return version[0] == 7;
}
}
private static final byte DATA_FORMAT[] = { 0x55, 0x50, 0x72, 0x6F }; // "UPro"
// private methods -------------------------------------------------------
/*
* Compare additional properties to see if it has argument type
* @param property 32 bit properties
* @param type character type
* @return true if property has type
*/
/*private boolean compareAdditionalType(int property, int type)
{
return (property & (1 << type)) != 0;
}*/
// property starts for UnicodeSet -------------------------------------- ***
private static final int TAB = 0x0009;
//private static final int LF = 0x000a;
//private static final int FF = 0x000c;
private static final int CR = 0x000d;
private static final int U_A = 0x0041;
private static final int U_F = 0x0046;
private static final int U_Z = 0x005a;
private static final int U_a = 0x0061;
private static final int U_f = 0x0066;
private static final int U_z = 0x007a;
private static final int DEL = 0x007f;
private static final int NL = 0x0085;
private static final int NBSP = 0x00a0;
private static final int CGJ = 0x034f;
private static final int FIGURESP = 0x2007;
private static final int HAIRSP = 0x200a;
//private static final int ZWNJ = 0x200c;
//private static final int ZWJ = 0x200d;
private static final int RLM = 0x200f;
private static final int NNBSP = 0x202f;
private static final int WJ = 0x2060;
private static final int INHSWAP = 0x206a;
private static final int NOMDIG = 0x206f;
private static final int U_FW_A = 0xff21;
private static final int U_FW_F = 0xff26;
private static final int U_FW_Z = 0xff3a;
private static final int U_FW_a = 0xff41;
private static final int U_FW_f = 0xff46;
private static final int U_FW_z = 0xff5a;
private static final int ZWNBSP = 0xfeff;
public UnicodeSet addPropertyStarts(final UnicodeSet set) {
/* add the start code point of each same-value range of the main trie */
Iterator<Trie2.Range> trieIterator = m_trie_.iterator();
Trie2.Range range;
while (trieIterator.hasNext() && !(range = trieIterator.next()).leadSurrogate) {
set.add(range.startCodePoint);
}
/* add code points with hardcoded properties, plus the ones following them */
/* add for u_isblank() */
set.add(TAB);
set.add(TAB + 1);
/* add for IS_THAT_CONTROL_SPACE() */
set.add(CR + 1); /* range TAB..CR */
set.add(0x1c);
set.add(0x1f + 1);
set.add(NL);
set.add(NL + 1);
/* add for u_isIDIgnorable() what was not added above */
set.add(DEL); /* range DEL..NBSP-1, NBSP added below */
set.add(HAIRSP);
set.add(RLM + 1);
set.add(INHSWAP);
set.add(NOMDIG + 1);
set.add(ZWNBSP);
set.add(ZWNBSP + 1);
/* add no-break spaces for u_isWhitespace() what was not added above */
set.add(NBSP);
set.add(NBSP + 1);
set.add(FIGURESP);
set.add(FIGURESP + 1);
set.add(NNBSP);
set.add(NNBSP + 1);
/* add for u_charDigitValue() */
// TODO remove when UCharacter.getHanNumericValue() is changed to just return
// Unicode numeric values
set.add(0x3007);
set.add(0x3008);
set.add(0x4e00);
set.add(0x4e01);
set.add(0x4e8c);
set.add(0x4e8d);
set.add(0x4e09);
set.add(0x4e0a);
set.add(0x56db);
set.add(0x56dc);
set.add(0x4e94);
set.add(0x4e95);
set.add(0x516d);
set.add(0x516e);
set.add(0x4e03);
set.add(0x4e04);
set.add(0x516b);
set.add(0x516c);
set.add(0x4e5d);
set.add(0x4e5e);
/* add for u_digit() */
set.add(U_a);
set.add(U_z + 1);
set.add(U_A);
set.add(U_Z + 1);
set.add(U_FW_a);
set.add(U_FW_z + 1);
set.add(U_FW_A);
set.add(U_FW_Z + 1);
/* add for u_isxdigit() */
set.add(U_f + 1);
set.add(U_F + 1);
set.add(U_FW_f + 1);
set.add(U_FW_F + 1);
/* add for UCHAR_DEFAULT_IGNORABLE_CODE_POINT what was not added above */
set.add(WJ); /* range WJ..NOMDIG */
set.add(0xfff0);
set.add(0xfffb + 1);
set.add(0xe0000);
set.add(0xe0fff + 1);
/* add for UCHAR_GRAPHEME_BASE and others */
set.add(CGJ);
set.add(CGJ + 1);
return set; // for chaining
}
public void upropsvec_addPropertyStarts(final UnicodeSet set) {
/* add the start code point of each same-value range of the properties vectors trie */
if (m_additionalColumnsCount_ > 0) {
/* if m_additionalColumnsCount_==0 then the properties vectors trie may not be there at all */
Iterator<Trie2.Range> trieIterator = m_additionalTrie_.iterator();
Trie2.Range range;
while (trieIterator.hasNext() && !(range = trieIterator.next()).leadSurrogate) {
set.add(range.startCodePoint);
}
}
}
// This static initializer block must be placed after
// other static member initialization
static {
try {
INSTANCE = new UCharacterProperty();
} catch (IOException e) {
throw new MissingResourceException(e.getMessage(), "", "");
}
}
/*----------------------------------------------------------------
* Inclusions list
*----------------------------------------------------------------*/
/*
* Return a set of characters for property enumeration.
* The set implicitly contains 0x110000 as well, which is one more than the highest
* Unicode code point.
*
* This set is used as an ordered list - its code points are ordered, and
* consecutive code points (in Unicode code point order) in the set define a range.
* For each two consecutive characters (start, limit) in the set,
* all of the UCD/normalization and related properties for
* all code points start..limit-1 are all the same,
* except for character names and ISO comments.
*
* All Unicode code points U+0000..U+10ffff are covered by these ranges.
* The ranges define a partition of the Unicode code space.
* ICU uses the inclusions set to enumerate properties for generating
* UnicodeSets containing all code points that have a certain property value.
*
* The Inclusion List is generated from the UCD. It is generated
* by enumerating the data tries, and code points for hardcoded properties
* are added as well.
*
* --------------------------------------------------------------------------
*
* The following are ideas for getting properties-unique code point ranges,
* with possible optimizations beyond the current implementation.
* These optimizations would require more code and be more fragile.
* The current implementation generates one single list (set) for all properties.
*
* To enumerate properties efficiently, one needs to know ranges of
* repetitive values, so that the value of only each start code point
* can be applied to the whole range.
* This information is in principle available in the uprops.icu/unorm.icu data.
*
* There are two obstacles:
*
* 1. Some properties are computed from multiple data structures,
* making it necessary to get repetitive ranges by intersecting
* ranges from multiple tries.
*
* 2. It is not economical to write code for getting repetitive ranges
* that are precise for each of some 50 properties.
*
* Compromise ideas:
*
* - Get ranges per trie, not per individual property.
* Each range contains the same values for a whole group of properties.
* This would generate currently five range sets, two for uprops.icu tries
* and three for unorm.icu tries.
*
* - Combine sets of ranges for multiple tries to get sufficient sets
* for properties, e.g., the uprops.icu main and auxiliary tries
* for all non-normalization properties.
*
* Ideas for representing ranges and combining them:
*
* - A UnicodeSet could hold just the start code points of ranges.
* Multiple sets are easily combined by or-ing them together.
*
* - Alternatively, a UnicodeSet could hold each even-numbered range.
* All ranges could be enumerated by using each start code point
* (for the even-numbered ranges) as well as each limit (end+1) code point
* (for the odd-numbered ranges).
* It should be possible to combine two such sets by xor-ing them,
* but no more than two.
*
* The second way to represent ranges may(?!) yield smaller UnicodeSet arrays,
* but the first one is certainly simpler and applicable for combining more than
* two range sets.
*
* It is possible to combine all range sets for all uprops/unorm tries into one
* set that can be used for all properties.
* As an optimization, there could be less-combined range sets for certain
* groups of properties.
* The relationship of which less-combined range set to use for which property
* depends on the implementation of the properties and must be hardcoded
* - somewhat error-prone and higher maintenance but can be tested easily
* by building property sets "the simple way" in test code.
*
* ---
*
* Do not use a UnicodeSet pattern because that causes infinite recursion;
* UnicodeSet depends on the inclusions set.
*
* ---
*
* getInclusions() is commented out starting 2005-feb-12 because
* UnicodeSet now calls the uxyz_addPropertyStarts() directly,
* and only for the relevant property source.
*/
/*
public UnicodeSet getInclusions() {
UnicodeSet set = new UnicodeSet();
NormalizerImpl.addPropertyStarts(set);
addPropertyStarts(set);
return set;
}
*/
}