401 lines
14 KiB
C
401 lines
14 KiB
C
/*
|
|
*******************************************************************************
|
|
*
|
|
* Copyright (C) 2002, International Business Machines
|
|
* Corporation and others. All Rights Reserved.
|
|
*
|
|
*******************************************************************************
|
|
* file name: uprops.h
|
|
* encoding: US-ASCII
|
|
* tab size: 8 (not used)
|
|
* indentation:4
|
|
*
|
|
* created on: 2002feb24
|
|
* created by: Markus W. Scherer
|
|
*
|
|
* Implementations for mostly non-core Unicode character properties
|
|
* stored in uprops.icu.
|
|
*/
|
|
|
|
#include "unicode/utypes.h"
|
|
#include "unicode/uchar.h"
|
|
#include "unicode/uscript.h"
|
|
#include "cstring.h"
|
|
#include "unormimp.h"
|
|
#include "uprops.h"
|
|
|
|
/* helper definitions ------------------------------------------------------- */
|
|
|
|
#define CGJ 0x034f
|
|
#define ZWNJ 0x200C
|
|
#define ZWJ 0x200D
|
|
|
|
/**
|
|
* Unicode property names and property value names are compared
|
|
* "loosely". Property[Value]Aliases.txt say:
|
|
* "With loose matching of property names, the case distinctions, whitespace,
|
|
* and '_' are ignored."
|
|
*
|
|
* 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).
|
|
*
|
|
* @internal
|
|
*/
|
|
U_CAPI int32_t U_EXPORT2
|
|
uprv_comparePropertyNames(const char *name1, const char *name2) {
|
|
int32_t rc;
|
|
unsigned char c1, c2;
|
|
|
|
for(;;) {
|
|
/* Ignore delimiters '-', '_', and ASCII White_Space */
|
|
while((c1=(unsigned char)*name1)=='-' || c1=='_' ||
|
|
c1==' ' || c1=='\t' || c1=='\n' || c1=='\v' || c1=='\f' || c1=='\r'
|
|
) {
|
|
++name1;
|
|
}
|
|
while((c2=(unsigned char)*name2)=='-' || c2=='_' ||
|
|
c2==' ' || c2=='\t' || c2=='\n' || c2=='\v' || c2=='\f' || c2=='\r'
|
|
) {
|
|
++name2;
|
|
}
|
|
|
|
/* If we reach the ends of both strings then they match */
|
|
if((c1|c2)==0) {
|
|
return 0;
|
|
}
|
|
|
|
/* Case-insensitive comparison */
|
|
if(c1!=c2) {
|
|
rc=(int32_t)(unsigned char)uprv_tolower(c1)-(int32_t)(unsigned char)uprv_tolower(c2);
|
|
if(rc!=0) {
|
|
return rc;
|
|
}
|
|
}
|
|
|
|
++name1;
|
|
++name2;
|
|
}
|
|
}
|
|
|
|
/* API functions ------------------------------------------------------------ */
|
|
|
|
U_CAPI void U_EXPORT2
|
|
u_charAge(UChar32 c, UVersionInfo versionArray) {
|
|
if(versionArray!=NULL) {
|
|
uint32_t version=u_getUnicodeProperties(c, 0)>>UPROPS_AGE_SHIFT;
|
|
versionArray[0]=(uint8_t)(version>>4);
|
|
versionArray[1]=(uint8_t)(version&0xf);
|
|
versionArray[2]=versionArray[3]=0;
|
|
}
|
|
}
|
|
|
|
U_CAPI UScriptCode U_EXPORT2
|
|
uscript_getScript(UChar32 c, UErrorCode *pErrorCode) {
|
|
if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
|
|
return USCRIPT_INVALID_CODE;
|
|
}
|
|
if((uint32_t)c>0x10ffff) {
|
|
*pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
|
|
return USCRIPT_INVALID_CODE;
|
|
}
|
|
|
|
return (UScriptCode)(u_getUnicodeProperties(c, 0)&UPROPS_SCRIPT_MASK);
|
|
}
|
|
|
|
U_CAPI UBlockCode U_EXPORT2
|
|
ublock_getCode(UChar32 c) {
|
|
uint32_t b;
|
|
|
|
if((uint32_t)c>0x10ffff) {
|
|
return UBLOCK_INVALID_CODE;
|
|
}
|
|
|
|
b=(u_getUnicodeProperties(c, 0)&UPROPS_BLOCK_MASK)>>UPROPS_BLOCK_SHIFT;
|
|
if(b==0) {
|
|
return UBLOCK_INVALID_CODE;
|
|
} else {
|
|
return (UBlockCode)b;
|
|
}
|
|
}
|
|
|
|
U_CAPI UBool U_EXPORT2
|
|
u_hasBinaryProperty(UChar32 c, UProperty which) {
|
|
uint32_t props;
|
|
|
|
/* c is range-checked in the functions that are called from here */
|
|
switch(which) {
|
|
case UCHAR_ALPHABETIC:
|
|
/* Lu+Ll+Lt+Lm+Lo+Nl+Other_Alphabetic */
|
|
return (FLAG(u_charType(c))&(_Lu|_Ll|_Lt|_Lm|_Lo|_Nl))!=0 ||
|
|
(u_getUnicodeProperties(c, 1)&FLAG(UPROPS_OTHER_ALPHABETIC))!=0;
|
|
case UCHAR_ASCII_HEX_DIGIT:
|
|
return (u_getUnicodeProperties(c, 1)&FLAG(UPROPS_ASCII_HEX_DIGIT))!=0;
|
|
case UCHAR_BIDI_CONTROL:
|
|
return (u_getUnicodeProperties(c, 1)&FLAG(UPROPS_BIDI_CONTROL))!=0;
|
|
case UCHAR_BIDI_MIRRORED:
|
|
return u_isMirrored(c);
|
|
case UCHAR_DASH:
|
|
return (u_getUnicodeProperties(c, 1)&FLAG(UPROPS_DASH))!=0;
|
|
case UCHAR_DEFAULT_IGNORABLE_CODE_POINT:
|
|
/* <2060..206F, FFF0..FFFB, E0000..E0FFF>+Other_Default_Ignorable_Code_Point+(Cf+Cc+Cs-White_Space) */
|
|
if( (0x2060<=c && c<=0x206f) ||
|
|
(0xfff0<=c && c<=0xfffb) ||
|
|
(0xe0000<=c && c<=0xe0fff)
|
|
) {
|
|
return TRUE;
|
|
}
|
|
|
|
props=u_getUnicodeProperties(c, 1);
|
|
return (props&FLAG(UPROPS_OTHER_DEFAULT_IGNORABLE_CODE_POINT))!=0 ||
|
|
((props&FLAG(UPROPS_WHITE_SPACE))==0 &&
|
|
(FLAG(u_charType(c))&(_Cf|_Cc|_Cs))!=0);
|
|
case UCHAR_DEPRECATED:
|
|
return (u_getUnicodeProperties(c, 1)&FLAG(UPROPS_DEPRECATED))!=0;
|
|
case UCHAR_DIACRITIC:
|
|
return (u_getUnicodeProperties(c, 1)&FLAG(UPROPS_DIACRITIC))!=0;
|
|
case UCHAR_EXTENDER:
|
|
return (u_getUnicodeProperties(c, 1)&FLAG(UPROPS_EXTENDER))!=0;
|
|
case UCHAR_FULL_COMPOSITION_EXCLUSION:
|
|
return unorm_internalIsFullCompositionExclusion(c);
|
|
case UCHAR_GRAPHEME_BASE:
|
|
/*
|
|
* [0..10FFFF]-Cc-Cf-Cs-Co-Cn-Zl-Zp-Grapheme_Link-Grapheme_Extend-CGJ ==
|
|
* [0..10FFFF]-Cc-Cf-Cs-Co-Cn-Zl-Zp-Grapheme_Link-(Me+Mn+Mc+Other_Grapheme_Extend)-CGJ ==
|
|
* [0..10FFFF]-Cc-Cf-Cs-Co-Cn-Zl-Zp-Me-Mn-Mc-Grapheme_Link-Other_Grapheme_Extend-CGJ
|
|
*
|
|
* u_charType(c out of range) returns Cn so we need not check for the range
|
|
*/
|
|
return c!=CGJ &&
|
|
(FLAG(u_charType(c))&(_Cc|_Cf|_Cs|_Co|_Cn|_Zl|_Zp|_Me|_Mn|_Mc))==0 &&
|
|
((u_getUnicodeProperties(c, 1)&
|
|
(FLAG(UPROPS_GRAPHEME_LINK)|FLAG(UPROPS_OTHER_GRAPHEME_EXTEND)))==0);
|
|
case UCHAR_GRAPHEME_EXTEND:
|
|
/* Me+Mn+Mc+Other_Grapheme_Extend-Grapheme_Link-CGJ */
|
|
if(c==CGJ) {
|
|
return FALSE; /* fastest check first */
|
|
}
|
|
|
|
props=u_getUnicodeProperties(c, 1);
|
|
return (props&FLAG(UPROPS_GRAPHEME_LINK))==0 &&
|
|
((props&FLAG(UPROPS_OTHER_GRAPHEME_EXTEND))!=0 ||
|
|
(FLAG(u_charType(c))&(_Me|_Mn|_Mc))!=0);
|
|
case UCHAR_GRAPHEME_LINK:
|
|
return (u_getUnicodeProperties(c, 1)&FLAG(UPROPS_GRAPHEME_LINK))!=0;
|
|
case UCHAR_HEX_DIGIT:
|
|
return (u_getUnicodeProperties(c, 1)&FLAG(UPROPS_HEX_DIGIT))!=0;
|
|
case UCHAR_HYPHEN:
|
|
return (u_getUnicodeProperties(c, 1)&FLAG(UPROPS_HYPHEN))!=0;
|
|
case UCHAR_ID_CONTINUE:
|
|
/* ID_Start+Mn+Mc+Nd+Pc == Lu+Ll+Lt+Lm+Lo+Nl+Mn+Mc+Nd+Pc */
|
|
return (FLAG(u_charType(c))&(_Lu|_Ll|_Lt|_Lm|_Lo|_Nl|_Mn|_Mc|_Nd|_Pc))!=0;
|
|
case UCHAR_ID_START:
|
|
/* Lu+Ll+Lt+Lm+Lo+Nl */
|
|
return (FLAG(u_charType(c))&(_Lu|_Ll|_Lt|_Lm|_Lo|_Nl))!=0;
|
|
case UCHAR_IDEOGRAPHIC:
|
|
return (u_getUnicodeProperties(c, 1)&FLAG(UPROPS_IDEOGRAPHIC))!=0;
|
|
case UCHAR_IDS_BINARY_OPERATOR:
|
|
return (u_getUnicodeProperties(c, 1)&FLAG(UPROPS_IDS_BINARY_OPERATOR))!=0;
|
|
case UCHAR_IDS_TRINARY_OPERATOR:
|
|
return (u_getUnicodeProperties(c, 1)&FLAG(UPROPS_IDS_TRINARY_OPERATOR))!=0;
|
|
case UCHAR_JOIN_CONTROL:
|
|
return (u_getUnicodeProperties(c, 1)&FLAG(UPROPS_JOIN_CONTROL))!=0;
|
|
case UCHAR_LOGICAL_ORDER_EXCEPTION:
|
|
return (u_getUnicodeProperties(c, 1)&FLAG(UPROPS_LOGICAL_ORDER_EXCEPTION))!=0;
|
|
case UCHAR_LOWERCASE:
|
|
/* Ll+Other_Lowercase */
|
|
return u_charType(c)==U_LOWERCASE_LETTER ||
|
|
(u_getUnicodeProperties(c, 1)&FLAG(UPROPS_OTHER_LOWERCASE))!=0;
|
|
case UCHAR_MATH:
|
|
/* Sm+Other_Math */
|
|
return u_charType(c)==U_MATH_SYMBOL ||
|
|
(u_getUnicodeProperties(c, 1)&FLAG(UPROPS_OTHER_MATH))!=0;
|
|
case UCHAR_NONCHARACTER_CODE_POINT:
|
|
return (u_getUnicodeProperties(c, 1)&FLAG(UPROPS_NONCHARACTER_CODE_POINT))!=0;
|
|
case UCHAR_QUOTATION_MARK:
|
|
return (u_getUnicodeProperties(c, 1)&FLAG(UPROPS_QUOTATION_MARK))!=0;
|
|
case UCHAR_RADICAL:
|
|
return (u_getUnicodeProperties(c, 1)&FLAG(UPROPS_RADICAL))!=0;
|
|
case UCHAR_SOFT_DOTTED:
|
|
return (u_getUnicodeProperties(c, 1)&FLAG(UPROPS_SOFT_DOTTED))!=0;
|
|
case UCHAR_TERMINAL_PUNCTUATION:
|
|
return (u_getUnicodeProperties(c, 1)&FLAG(UPROPS_TERMINAL_PUNCTUATION))!=0;
|
|
case UCHAR_UNIFIED_IDEOGRAPH:
|
|
return (u_getUnicodeProperties(c, 1)&FLAG(UPROPS_UNIFIED_IDEOGRAPH))!=0;
|
|
case UCHAR_UPPERCASE:
|
|
/* Lu+Other_Uppercase */
|
|
return u_charType(c)==U_UPPERCASE_LETTER ||
|
|
(u_getUnicodeProperties(c, 1)&FLAG(UPROPS_OTHER_UPPERCASE))!=0;
|
|
case UCHAR_WHITE_SPACE:
|
|
return (u_getUnicodeProperties(c, 1)&FLAG(UPROPS_WHITE_SPACE))!=0;
|
|
case UCHAR_XID_CONTINUE:
|
|
return (u_getUnicodeProperties(c, 1)&FLAG(UPROPS_XID_CONTINUE))!=0;
|
|
case UCHAR_XID_START:
|
|
return (u_getUnicodeProperties(c, 1)&FLAG(UPROPS_XID_START))!=0;
|
|
default:
|
|
/* not a known binary property */
|
|
return FALSE;
|
|
};
|
|
}
|
|
|
|
U_CAPI UBool U_EXPORT2
|
|
u_isUAlphabetic(UChar32 c) {
|
|
return u_hasBinaryProperty(c, UCHAR_ALPHABETIC);
|
|
}
|
|
|
|
U_CAPI UBool U_EXPORT2
|
|
u_isULowercase(UChar32 c) {
|
|
return u_hasBinaryProperty(c, UCHAR_LOWERCASE);
|
|
}
|
|
|
|
U_CAPI UBool U_EXPORT2
|
|
u_isUUppercase(UChar32 c) {
|
|
return u_hasBinaryProperty(c, UCHAR_UPPERCASE);
|
|
}
|
|
|
|
U_CAPI UBool U_EXPORT2
|
|
u_isUWhiteSpace(UChar32 c) {
|
|
return u_hasBinaryProperty(c, UCHAR_WHITE_SPACE);
|
|
}
|
|
|
|
U_CAPI UBool U_EXPORT2
|
|
uprv_isRuleWhiteSpace(UChar32 c) {
|
|
/* "white space" in the sense of ICU rule parsers: Cf+White_Space */
|
|
return
|
|
u_charType(c)==U_FORMAT_CHAR ||
|
|
u_hasBinaryProperty(c, UCHAR_WHITE_SPACE);
|
|
}
|
|
|
|
U_CAPI int32_t U_EXPORT2
|
|
u_getIntPropertyValue(UChar32 c, UProperty which) {
|
|
UErrorCode errorCode;
|
|
int32_t i;
|
|
int8_t type;
|
|
|
|
if(which<UCHAR_BINARY_START) {
|
|
return 0; /* undefined */
|
|
} else if(which<UCHAR_BINARY_LIMIT) {
|
|
return (int32_t)u_hasBinaryProperty(c, which);
|
|
} else if(which<UCHAR_INT_START) {
|
|
return 0; /* undefined */
|
|
} else if(which<UCHAR_INT_LIMIT) {
|
|
switch(which) {
|
|
case UCHAR_BIDI_CLASS:
|
|
return (int32_t)u_charDirection(c);
|
|
case UCHAR_BLOCK:
|
|
return (int32_t)ublock_getCode(c);
|
|
case UCHAR_CANONICAL_COMBINING_CLASS:
|
|
return u_getCombiningClass(c);
|
|
case UCHAR_DECOMPOSITION_TYPE:
|
|
return (int32_t)(u_getUnicodeProperties(c, 2)&UPROPS_DT_MASK);
|
|
case UCHAR_EAST_ASIAN_WIDTH:
|
|
return (int32_t)(u_getUnicodeProperties(c, 0)&UPROPS_EA_MASK)>>UPROPS_EA_SHIFT;
|
|
case UCHAR_GENERAL_CATEGORY:
|
|
return (int32_t)u_charType(c);
|
|
case UCHAR_JOINING_GROUP:
|
|
return (int32_t)(u_getUnicodeProperties(c, 2)&UPROPS_JG_MASK)>>UPROPS_JG_SHIFT;
|
|
case UCHAR_JOINING_TYPE:
|
|
/*
|
|
* ArabicShaping.txt:
|
|
* Note: Characters of joining type T and most characters of
|
|
* joining type U are not explicitly listed in this file.
|
|
*
|
|
* Characters of joining type T can [be] derived by the following formula:
|
|
* T = Mn + Cf - ZWNJ - ZWJ
|
|
*/
|
|
i=(int32_t)(u_getUnicodeProperties(c, 2)&UPROPS_JT_MASK)>>UPROPS_JT_SHIFT;
|
|
if(i==0 && c!=ZWNJ && c!=ZWJ && (FLAG(u_charType(c))&(_Mn|_Cf))!=0) {
|
|
i=(int32_t)U_JT_TRANSPARENT;
|
|
}
|
|
return i;
|
|
case UCHAR_LINE_BREAK:
|
|
/*
|
|
* LineBreak.txt:
|
|
* - Assigned characters that are not listed explicitly are given the value
|
|
* "AL".
|
|
* - Unassigned characters are given the value "XX".
|
|
* ...
|
|
* E000..F8FF;XX # <Private Use, First>..<Private Use, Last>
|
|
* F0000..FFFFD;XX # <Plane 15 Private Use, First>..<Plane 15 Private Use, Last>
|
|
* 100000..10FFFD;XX # <Plane 16 Private Use, First>..<Plane 16 Private Use, Last>
|
|
*/
|
|
i=(int32_t)(u_getUnicodeProperties(c, 0)&UPROPS_LB_MASK)>>UPROPS_LB_SHIFT;
|
|
if(i==0 && (type=u_charType(c))!=0 && type!=(int8_t)U_PRIVATE_USE_CHAR) {
|
|
i=(int32_t)U_LB_ALPHABETIC;
|
|
}
|
|
return i;
|
|
case UCHAR_NUMERIC_TYPE:
|
|
return (int32_t)GET_NUMERIC_TYPE(u_getUnicodeProperties(c, -1));
|
|
case UCHAR_SCRIPT:
|
|
errorCode=U_ZERO_ERROR;
|
|
return (int32_t)uscript_getScript(c, &errorCode);
|
|
default:
|
|
return 0; /* undefined */
|
|
}
|
|
} else {
|
|
return 0; /* undefined */
|
|
}
|
|
}
|
|
|
|
U_CAPI int32_t U_EXPORT2
|
|
u_getIntPropertyMinValue(UProperty which) {
|
|
switch(which) {
|
|
case UCHAR_BLOCK:
|
|
return UBLOCK_INVALID_CODE;
|
|
case UCHAR_SCRIPT:
|
|
return USCRIPT_INVALID_CODE;
|
|
default:
|
|
return 0; /* undefined; and: all other properties have a minimum value of 0 */
|
|
}
|
|
}
|
|
|
|
U_CAPI int32_t U_EXPORT2
|
|
u_getIntPropertyMaxValue(UProperty which) {
|
|
int32_t max;
|
|
|
|
if(which<UCHAR_BINARY_START) {
|
|
return 0; /* undefined */
|
|
} else if(which<UCHAR_BINARY_LIMIT) {
|
|
return 1; /* maximum TRUE for all binary properties */
|
|
} else if(which<UCHAR_INT_START) {
|
|
return 0; /* undefined */
|
|
} else if(which<UCHAR_INT_LIMIT) {
|
|
switch(which) {
|
|
case UCHAR_BIDI_CLASS:
|
|
return (int32_t)U_CHAR_DIRECTION_COUNT-1;
|
|
case UCHAR_BLOCK:
|
|
max=(uprv_getMaxValues()&UPROPS_BLOCK_MASK)>>UPROPS_BLOCK_SHIFT;
|
|
if(max==0) {
|
|
max=(int32_t)UBLOCK_COUNT-1;
|
|
}
|
|
return max;
|
|
case UCHAR_CANONICAL_COMBINING_CLASS:
|
|
return 0xff; /* TODO do we need to be more precise, getting the actual maximum? */
|
|
case UCHAR_DECOMPOSITION_TYPE:
|
|
return (int32_t)U_DT_COUNT-1;
|
|
case UCHAR_EAST_ASIAN_WIDTH:
|
|
return (int32_t)U_EA_COUNT-1;
|
|
case UCHAR_GENERAL_CATEGORY:
|
|
return (int32_t)U_CHAR_CATEGORY_COUNT-1;
|
|
case UCHAR_JOINING_GROUP:
|
|
return (int32_t)U_JG_COUNT-1;
|
|
case UCHAR_JOINING_TYPE:
|
|
return (int32_t)U_JT_COUNT-1;
|
|
case UCHAR_LINE_BREAK:
|
|
return (int32_t)U_LB_COUNT-1;
|
|
case UCHAR_NUMERIC_TYPE:
|
|
return (int32_t)U_NT_COUNT-1;
|
|
case UCHAR_SCRIPT:
|
|
max=uprv_getMaxValues()&UPROPS_SCRIPT_MASK;
|
|
if(max==0) {
|
|
max=(int32_t)USCRIPT_CODE_LIMIT-1;
|
|
}
|
|
return max;
|
|
default:
|
|
return 0; /* undefined */
|
|
}
|
|
} else {
|
|
return 0; /* undefined */
|
|
}
|
|
}
|