Check in the pristine copy of ICU 51.2

icu51/source/common/uchar.c

Index: icu51/source/common/uchar.c
===================================================================
--- icu51/source/common/uchar.c	(revision 0)
+++ icu51/source/common/uchar.c	(revision 0)
@@ -0,0 +1,727 @@
+/*
+********************************************************************************
+*   Copyright (C) 1996-2012, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+********************************************************************************
+*
+* File UCHAR.C
+*
+* Modification History:
+*
+*   Date        Name        Description
+*   04/02/97    aliu        Creation.
+*   4/15/99     Madhu       Updated all the function definitions for C Implementation
+*   5/20/99     Madhu       Added the function u_getVersion()
+*   8/19/1999   srl         Upgraded scripts to Unicode3.0 
+*   11/11/1999  weiv        added u_isalnum(), cleaned comments
+*   01/11/2000  helena      Renamed u_getVersion to u_getUnicodeVersion.
+*   06/20/2000  helena      OS/400 port changes; mostly typecast.
+******************************************************************************
+*/
+
+#include "unicode/utypes.h"
+#include "unicode/uchar.h"
+#include "unicode/uscript.h"
+#include "unicode/udata.h"
+#include "uassert.h"
+#include "cmemory.h"
+#include "ucln_cmn.h"
+#include "utrie2.h"
+#include "udataswp.h"
+#include "uprops.h"
+#include "ustr_imp.h"
+
+#define LENGTHOF(array) (int32_t)(sizeof(array)/sizeof((array)[0]))
+
+/* uchar_props_data.h is machine-generated by genprops --csource */
+#define INCLUDED_FROM_UCHAR_C
+#include "uchar_props_data.h"
+
+/* constants and macros for access to the data ------------------------------ */
+
+/* getting a uint32_t properties word from the data */
+#define GET_PROPS(c, result) ((result)=UTRIE2_GET16(&propsTrie, c));
+
+U_CFUNC UBool
+uprv_haveProperties(UErrorCode *pErrorCode) {
+    if(U_FAILURE(*pErrorCode)) {
+        return FALSE;
+    }
+    return TRUE;
+}
+
+/* API functions ------------------------------------------------------------ */
+
+/* Gets the Unicode character's general category.*/
+U_CAPI int8_t U_EXPORT2
+u_charType(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (int8_t)GET_CATEGORY(props);
+}
+
+/* Enumerate all code points with their general categories. */
+struct _EnumTypeCallback {
+    UCharEnumTypeRange *enumRange;
+    const void *context;
+};
+
+static uint32_t U_CALLCONV
+_enumTypeValue(const void *context, uint32_t value) {
+    return GET_CATEGORY(value);
+}
+
+static UBool U_CALLCONV
+_enumTypeRange(const void *context, UChar32 start, UChar32 end, uint32_t value) {
+    /* just cast the value to UCharCategory */
+    return ((struct _EnumTypeCallback *)context)->
+        enumRange(((struct _EnumTypeCallback *)context)->context,
+                  start, end+1, (UCharCategory)value);
+}
+
+U_CAPI void U_EXPORT2
+u_enumCharTypes(UCharEnumTypeRange *enumRange, const void *context) {
+    struct _EnumTypeCallback callback;
+
+    if(enumRange==NULL) {
+        return;
+    }
+
+    callback.enumRange=enumRange;
+    callback.context=context;
+    utrie2_enum(&propsTrie, _enumTypeValue, _enumTypeRange, &callback);
+}
+
+/* Checks if ch is a lower case letter.*/
+U_CAPI UBool U_EXPORT2
+u_islower(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)(GET_CATEGORY(props)==U_LOWERCASE_LETTER);
+}
+
+/* Checks if ch is an upper case letter.*/
+U_CAPI UBool U_EXPORT2
+u_isupper(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)(GET_CATEGORY(props)==U_UPPERCASE_LETTER);
+}
+
+/* Checks if ch is a title case letter; usually upper case letters.*/
+U_CAPI UBool U_EXPORT2
+u_istitle(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)(GET_CATEGORY(props)==U_TITLECASE_LETTER);
+}
+
+/* Checks if ch is a decimal digit. */
+U_CAPI UBool U_EXPORT2
+u_isdigit(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)(GET_CATEGORY(props)==U_DECIMAL_DIGIT_NUMBER);
+}
+
+U_CAPI UBool U_EXPORT2
+u_isxdigit(UChar32 c) {
+    uint32_t props;
+
+    /* 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;
+    }
+
+    GET_PROPS(c, props);
+    return (UBool)(GET_CATEGORY(props)==U_DECIMAL_DIGIT_NUMBER);
+}
+
+/* Checks if the Unicode character is a letter.*/
+U_CAPI UBool U_EXPORT2
+u_isalpha(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)((CAT_MASK(props)&U_GC_L_MASK)!=0);
+}
+
+U_CAPI UBool U_EXPORT2
+u_isUAlphabetic(UChar32 c) {
+    return (u_getUnicodeProperties(c, 1)&U_MASK(UPROPS_ALPHABETIC))!=0;
+}
+
+/* Checks if c is a letter or a decimal digit */
+U_CAPI UBool U_EXPORT2
+u_isalnum(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)((CAT_MASK(props)&(U_GC_L_MASK|U_GC_ND_MASK))!=0);
+}
+
+/**
+ * Checks if c is alphabetic, or a decimal digit; implements UCHAR_POSIX_ALNUM.
+ * @internal
+ */
+U_CFUNC UBool
+u_isalnumPOSIX(UChar32 c) {
+    return (UBool)(u_isUAlphabetic(c) || u_isdigit(c));
+}
+
+/* Checks if ch is a unicode character with assigned character type.*/
+U_CAPI UBool U_EXPORT2
+u_isdefined(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)(GET_CATEGORY(props)!=0);
+}
+
+/* Checks if the Unicode character is a base form character that can take a diacritic.*/
+U_CAPI UBool U_EXPORT2
+u_isbase(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)((CAT_MASK(props)&(U_GC_L_MASK|U_GC_N_MASK|U_GC_MC_MASK|U_GC_ME_MASK))!=0);
+}
+
+/* Checks if the Unicode character is a control character.*/
+U_CAPI UBool U_EXPORT2
+u_iscntrl(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)((CAT_MASK(props)&(U_GC_CC_MASK|U_GC_CF_MASK|U_GC_ZL_MASK|U_GC_ZP_MASK))!=0);
+}
+
+U_CAPI UBool U_EXPORT2
+u_isISOControl(UChar32 c) {
+    return (uint32_t)c<=0x9f && (c<=0x1f || c>=0x7f);
+}
+
+/* Some control characters that are used as space. */
+#define IS_THAT_CONTROL_SPACE(c) \
+    (c<=0x9f && ((c>=TAB && c<=CR) || (c>=0x1c && c <=0x1f) || c==NL))
+
+/* Java has decided that U+0085 New Line is not whitespace any more. */
+#define IS_THAT_ASCII_CONTROL_SPACE(c) \
+    (c<=0x1f && c>=TAB && (c<=CR || c>=0x1c))
+
+/* Checks if the Unicode character is a space character.*/
+U_CAPI UBool U_EXPORT2
+u_isspace(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)((CAT_MASK(props)&U_GC_Z_MASK)!=0 || IS_THAT_CONTROL_SPACE(c));
+}
+
+U_CAPI UBool U_EXPORT2
+u_isJavaSpaceChar(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)((CAT_MASK(props)&U_GC_Z_MASK)!=0);
+}
+
+/* Checks if the Unicode character is a whitespace character.*/
+U_CAPI UBool U_EXPORT2
+u_isWhitespace(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)(
+                ((CAT_MASK(props)&U_GC_Z_MASK)!=0 &&
+                    c!=NBSP && c!=FIGURESP && c!=NNBSP) || /* exclude no-break spaces */
+                IS_THAT_ASCII_CONTROL_SPACE(c)
+           );
+}
+
+U_CAPI UBool U_EXPORT2
+u_isblank(UChar32 c) {
+    if((uint32_t)c<=0x9f) {
+        return c==9 || c==0x20; /* TAB or SPACE */
+    } else {
+        /* Zs */
+        uint32_t props;
+        GET_PROPS(c, props);
+        return (UBool)(GET_CATEGORY(props)==U_SPACE_SEPARATOR);
+    }
+}
+
+U_CAPI UBool U_EXPORT2
+u_isUWhiteSpace(UChar32 c) {
+    return (u_getUnicodeProperties(c, 1)&U_MASK(UPROPS_WHITE_SPACE))!=0;
+}
+
+/* Checks if the Unicode character is printable.*/
+U_CAPI UBool U_EXPORT2
+u_isprint(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    /* comparing ==0 returns FALSE for the categories mentioned */
+    return (UBool)((CAT_MASK(props)&U_GC_C_MASK)==0);
+}
+
+/**
+ * Checks if c is in \p{graph}\p{blank} - \p{cntrl}.
+ * Implements UCHAR_POSIX_PRINT.
+ * @internal
+ */
+U_CFUNC UBool
+u_isprintPOSIX(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    /*
+     * The only cntrl character in graph+blank is TAB (in blank).
+     * Here we implement (blank-TAB)=Zs instead of calling u_isblank().
+     */
+    return (UBool)((GET_CATEGORY(props)==U_SPACE_SEPARATOR) || u_isgraphPOSIX(c));
+}
+
+U_CAPI UBool U_EXPORT2
+u_isgraph(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    /* comparing ==0 returns FALSE for the categories mentioned */
+    return (UBool)((CAT_MASK(props)&
+                    (U_GC_CC_MASK|U_GC_CF_MASK|U_GC_CS_MASK|U_GC_CN_MASK|U_GC_Z_MASK))
+                   ==0);
+}
+
+/**
+ * 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
+ */
+U_CFUNC UBool
+u_isgraphPOSIX(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    /* \p{space}\p{gc=Control} == \p{gc=Z}\p{Control} */
+    /* comparing ==0 returns FALSE for the categories mentioned */
+    return (UBool)((CAT_MASK(props)&
+                    (U_GC_CC_MASK|U_GC_CS_MASK|U_GC_CN_MASK|U_GC_Z_MASK))
+                   ==0);
+}
+
+U_CAPI UBool U_EXPORT2
+u_ispunct(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)((CAT_MASK(props)&U_GC_P_MASK)!=0);
+}
+
+/* Checks if the Unicode character can start a Unicode identifier.*/
+U_CAPI UBool U_EXPORT2
+u_isIDStart(UChar32 c) {
+    /* same as u_isalpha() */
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)((CAT_MASK(props)&(U_GC_L_MASK|U_GC_NL_MASK))!=0);
+}
+
+/* Checks if the Unicode character can be a Unicode identifier part other than starting the
+ identifier.*/
+U_CAPI UBool U_EXPORT2
+u_isIDPart(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)(
+           (CAT_MASK(props)&
+            (U_GC_ND_MASK|U_GC_NL_MASK|
+             U_GC_L_MASK|
+             U_GC_PC_MASK|U_GC_MC_MASK|U_GC_MN_MASK)
+           )!=0 ||
+           u_isIDIgnorable(c));
+}
+
+/*Checks if the Unicode character can be ignorable in a Java or Unicode identifier.*/
+U_CAPI UBool U_EXPORT2
+u_isIDIgnorable(UChar32 c) {
+    if(c<=0x9f) {
+        return u_isISOControl(c) && !IS_THAT_ASCII_CONTROL_SPACE(c);
+    } else {
+        uint32_t props;
+        GET_PROPS(c, props);
+        return (UBool)(GET_CATEGORY(props)==U_FORMAT_CHAR);
+    }
+}
+
+/*Checks if the Unicode character can start a Java identifier.*/
+U_CAPI UBool U_EXPORT2
+u_isJavaIDStart(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)((CAT_MASK(props)&(U_GC_L_MASK|U_GC_SC_MASK|U_GC_PC_MASK))!=0);
+}
+
+/*Checks if the Unicode character can be a Java identifier part other than starting the
+ * identifier.
+ */
+U_CAPI UBool U_EXPORT2
+u_isJavaIDPart(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)(
+           (CAT_MASK(props)&
+            (U_GC_ND_MASK|U_GC_NL_MASK|
+             U_GC_L_MASK|
+             U_GC_SC_MASK|U_GC_PC_MASK|
+             U_GC_MC_MASK|U_GC_MN_MASK)
+           )!=0 ||
+           u_isIDIgnorable(c));
+}
+
+U_CAPI int32_t U_EXPORT2
+u_charDigitValue(UChar32 c) {
+    uint32_t props;
+    int32_t value;
+    GET_PROPS(c, props);
+    value=(int32_t)GET_NUMERIC_TYPE_VALUE(props)-UPROPS_NTV_DECIMAL_START;
+    if(value<=9) {
+        return value;
+    } else {
+        return -1;
+    }
+}
+
+U_CAPI double U_EXPORT2
+u_getNumericValue(UChar32 c) {
+    uint32_t props;
+    int32_t ntv;
+    GET_PROPS(c, props);
+    ntv=(int32_t)GET_NUMERIC_TYPE_VALUE(props);
+
+    if(ntv==UPROPS_NTV_NONE) {
+        return U_NO_NUMERIC_VALUE;
+    } else if(ntv<UPROPS_NTV_DIGIT_START) {
+        /* decimal digit */
+        return ntv-UPROPS_NTV_DECIMAL_START;
+    } else if(ntv<UPROPS_NTV_NUMERIC_START) {
+        /* other digit */
+        return ntv-UPROPS_NTV_DIGIT_START;
+    } else if(ntv<UPROPS_NTV_FRACTION_START) {
+        /* small integer */
+        return ntv-UPROPS_NTV_NUMERIC_START;
+    } else if(ntv<UPROPS_NTV_LARGE_START) {
+        /* fraction */
+        int32_t numerator=(ntv>>4)-12;
+        int32_t denominator=(ntv&0xf)+1;
+        return (double)numerator/denominator;
+    } else if(ntv<UPROPS_NTV_BASE60_START) {
+        /* large, single-significant-digit integer */
+        double numValue;
+        int32_t mant=(ntv>>5)-14;
+        int32_t 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<UPROPS_NTV_RESERVED_START) {
+        /* sexagesimal (base 60) integer */
+        int32_t numValue=(ntv>>2)-0xbf;
+        int32_t 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 U_NO_NUMERIC_VALUE;
+    }
+}
+
+U_CAPI int32_t U_EXPORT2
+u_digit(UChar32 ch, int8_t radix) {
+    int8_t value;
+    if((uint8_t)(radix-2)<=(36-2)) {
+        value=(int8_t)u_charDigitValue(ch);
+        if(value<0) {
+            /* ch is not a decimal digit, try latin letters */
+            if(ch>=0x61 && ch<=0x7A) {
+                value=(int8_t)(ch-0x57);  /* ch - 'a' + 10 */
+            } else if(ch>=0x41 && ch<=0x5A) {
+                value=(int8_t)(ch-0x37);  /* ch - 'A' + 10 */
+            } else if(ch>=0xFF41 && ch<=0xFF5A) {
+                value=(int8_t)(ch-0xFF37);  /* fullwidth ASCII a-z */
+            } else if(ch>=0xFF21 && ch<=0xFF3A) {
+                value=(int8_t)(ch-0xFF17);  /* fullwidth ASCII A-Z */
+            }
+        }
+    } else {
+        value=-1;   /* invalid radix */
+    }
+    return (int8_t)((value<radix) ? value : -1);
+}
+
+U_CAPI UChar32 U_EXPORT2
+u_forDigit(int32_t digit, int8_t radix) {
+    if((uint8_t)(radix-2)>(36-2) || (uint32_t)digit>=(uint32_t)radix) {
+        return 0;
+    } else if(digit<10) {
+        return (UChar32)(0x30+digit);
+    } else {
+        return (UChar32)((0x61-10)+digit);
+    }
+}
+
+/* miscellaneous, and support for uprops.cpp -------------------------------- */
+
+U_CAPI void U_EXPORT2
+u_getUnicodeVersion(UVersionInfo versionArray) {
+    if(versionArray!=NULL) {
+        uprv_memcpy(versionArray, dataVersion, U_MAX_VERSION_LENGTH);
+    }
+}
+
+U_CFUNC uint32_t
+u_getMainProperties(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return props;
+}
+
+U_CFUNC uint32_t
+u_getUnicodeProperties(UChar32 c, int32_t column) {
+    U_ASSERT(column>=0);
+    if(column>=propsVectorsColumns) {
+        return 0;
+    } else {
+        uint16_t vecIndex=UTRIE2_GET16(&propsVectorsTrie, c);
+        return propsVectors[vecIndex+column];
+    }
+}
+
+U_CFUNC int32_t
+uprv_getMaxValues(int32_t column) {
+    switch(column) {
+    case 0:
+        return indexes[UPROPS_MAX_VALUES_INDEX];
+    case 2:
+        return indexes[UPROPS_MAX_VALUES_2_INDEX];
+    default:
+        return 0;
+    }
+}
+
+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) {
+    uint32_t scriptX;
+    if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
+        return USCRIPT_INVALID_CODE;
+    }
+    if((uint32_t)c>0x10ffff) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return USCRIPT_INVALID_CODE;
+    }
+    scriptX=u_getUnicodeProperties(c, 0)&UPROPS_SCRIPT_X_MASK;
+    if(scriptX<UPROPS_SCRIPT_X_WITH_COMMON) {
+        return (UScriptCode)scriptX;
+    } else if(scriptX<UPROPS_SCRIPT_X_WITH_INHERITED) {
+        return USCRIPT_COMMON;
+    } else if(scriptX<UPROPS_SCRIPT_X_WITH_OTHER) {
+        return USCRIPT_INHERITED;
+    } else {
+        return (UScriptCode)scriptExtensions[scriptX&UPROPS_SCRIPT_MASK];
+    }
+}
+
+U_CAPI UBool U_EXPORT2
+uscript_hasScript(UChar32 c, UScriptCode sc) {
+    const uint16_t *scx;
+    uint32_t scriptX=u_getUnicodeProperties(c, 0)&UPROPS_SCRIPT_X_MASK;
+    if(scriptX<UPROPS_SCRIPT_X_WITH_COMMON) {
+        return sc==(UScriptCode)scriptX;
+    }
+
+    scx=scriptExtensions+(scriptX&UPROPS_SCRIPT_MASK);
+    if(scriptX>=UPROPS_SCRIPT_X_WITH_OTHER) {
+        scx=scriptExtensions+scx[1];
+    }
+    if(sc>=USCRIPT_CODE_LIMIT) {
+        /* Guard against bogus input that would make us go past the Script_Extensions terminator. */
+        return FALSE;
+    }
+    while(sc>*scx) {
+        ++scx;
+    }
+    return sc==(*scx&0x7fff);
+}
+
+U_CAPI int32_t U_EXPORT2
+uscript_getScriptExtensions(UChar32 c,
+                            UScriptCode *scripts, int32_t capacity,
+                            UErrorCode *pErrorCode) {
+    uint32_t scriptX;
+    int32_t length;
+    const uint16_t *scx;
+    uint16_t sx;
+    if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
+        return 0;
+    }
+    if(capacity<0 || (capacity>0 && scripts==NULL)) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return 0;
+    }
+    scriptX=u_getUnicodeProperties(c, 0)&UPROPS_SCRIPT_X_MASK;
+    if(scriptX<UPROPS_SCRIPT_X_WITH_COMMON) {
+        if(capacity==0) {
+            *pErrorCode=U_BUFFER_OVERFLOW_ERROR;
+        } else {
+            scripts[0]=(UScriptCode)scriptX;
+        }
+        return 1;
+    }
+
+    scx=scriptExtensions+(scriptX&UPROPS_SCRIPT_MASK);
+    if(scriptX>=UPROPS_SCRIPT_X_WITH_OTHER) {
+        scx=scriptExtensions+scx[1];
+    }
+    length=0;
+    do {
+        sx=*scx++;
+        if(length<capacity) {
+            scripts[length]=(UScriptCode)(sx&0x7fff);
+        }
+        ++length;
+    } while(sx<0x8000);
+    if(length>capacity) {
+        *pErrorCode=U_BUFFER_OVERFLOW_ERROR;
+    }
+    return length;
+}
+
+U_CAPI UBlockCode U_EXPORT2
+ublock_getCode(UChar32 c) {
+    return (UBlockCode)((u_getUnicodeProperties(c, 0)&UPROPS_BLOCK_MASK)>>UPROPS_BLOCK_SHIFT);
+}
+
+/* property starts for UnicodeSet ------------------------------------------- */
+
+static UBool U_CALLCONV
+_enumPropertyStartsRange(const void *context, UChar32 start, UChar32 end, uint32_t value) {
+    /* add the start code point to the USet */
+    const USetAdder *sa=(const USetAdder *)context;
+    sa->add(sa->set, start);
+    return TRUE;
+}
+
+#define USET_ADD_CP_AND_NEXT(sa, cp) sa->add(sa->set, cp); sa->add(sa->set, cp+1)
+
+U_CFUNC void U_EXPORT2
+uchar_addPropertyStarts(const USetAdder *sa, UErrorCode *pErrorCode) {
+    if(U_FAILURE(*pErrorCode)) {
+        return;
+    }
+
+    /* add the start code point of each same-value range of the main trie */
+    utrie2_enum(&propsTrie, NULL, _enumPropertyStartsRange, sa);
+
+    /* add code points with hardcoded properties, plus the ones following them */
+
+    /* add for u_isblank() */
+    USET_ADD_CP_AND_NEXT(sa, TAB);
+
+    /* add for IS_THAT_CONTROL_SPACE() */
+    sa->add(sa->set, CR+1); /* range TAB..CR */
+    sa->add(sa->set, 0x1c);
+    sa->add(sa->set, 0x1f+1);
+    USET_ADD_CP_AND_NEXT(sa, NL);
+
+    /* add for u_isIDIgnorable() what was not added above */
+    sa->add(sa->set, DEL); /* range DEL..NBSP-1, NBSP added below */
+    sa->add(sa->set, HAIRSP);
+    sa->add(sa->set, RLM+1);
+    sa->add(sa->set, INHSWAP);
+    sa->add(sa->set, NOMDIG+1);
+    USET_ADD_CP_AND_NEXT(sa, ZWNBSP);
+
+    /* add no-break spaces for u_isWhitespace() what was not added above */
+    USET_ADD_CP_AND_NEXT(sa, NBSP);
+    USET_ADD_CP_AND_NEXT(sa, FIGURESP);
+    USET_ADD_CP_AND_NEXT(sa, NNBSP);
+
+    /* add for u_digit() */
+    sa->add(sa->set, U_a);
+    sa->add(sa->set, U_z+1);
+    sa->add(sa->set, U_A);
+    sa->add(sa->set, U_Z+1);
+    sa->add(sa->set, U_FW_a);
+    sa->add(sa->set, U_FW_z+1);
+    sa->add(sa->set, U_FW_A);
+    sa->add(sa->set, U_FW_Z+1);
+
+    /* add for u_isxdigit() */
+    sa->add(sa->set, U_f+1);
+    sa->add(sa->set, U_F+1);
+    sa->add(sa->set, U_FW_f+1);
+    sa->add(sa->set, U_FW_F+1);
+
+    /* add for UCHAR_DEFAULT_IGNORABLE_CODE_POINT what was not added above */
+    sa->add(sa->set, WJ); /* range WJ..NOMDIG */
+    sa->add(sa->set, 0xfff0);
+    sa->add(sa->set, 0xfffb+1);
+    sa->add(sa->set, 0xe0000);
+    sa->add(sa->set, 0xe0fff+1);
+
+    /* add for UCHAR_GRAPHEME_BASE and others */
+    USET_ADD_CP_AND_NEXT(sa, CGJ);
+}
+
+U_CFUNC void U_EXPORT2
+upropsvec_addPropertyStarts(const USetAdder *sa, UErrorCode *pErrorCode) {
+    if(U_FAILURE(*pErrorCode)) {
+        return;
+    }
+
+    /* add the start code point of each same-value range of the properties vectors trie */
+    if(propsVectorsColumns>0) {
+        /* if propsVectorsColumns==0 then the properties vectors trie may not be there at all */
+        utrie2_enum(&propsVectorsTrie, NULL, _enumPropertyStartsRange, sa);
+    }
+}
Property changes on: icu51/source/common/uchar.c
___________________________________________________________________
Added: svn:eol-style
   + LF