ICU-57132.0.1.tar.gz

[apple/icu.git] / icuSources / common / propname.cpp

diff --git a/icuSources/common/propname.cpp b/icuSources/common/propname.cpp
index 95d7e9b26a85aab56ee4e11b6f24d0223a036bb8..b638547ff6f8017c3b726ab8ad609daa6b309ad8 100644 (file)
--- a/icuSources/common/propname.cpp
+++ b/icuSources/common/propname.cpp
@@ -1,21 +1,26 @@
 /*
 **********************************************************************
 /*
 **********************************************************************

-* Copyright (c) 2002-2005, International Business Machines
+* Copyright (c) 2002-2014, International Business Machines

 * Corporation and others.  All Rights Reserved.
 **********************************************************************
 * Author: Alan Liu
 * Created: October 30 2002
 * Since: ICU 2.4
 * Corporation and others.  All Rights Reserved.
 **********************************************************************
 * Author: Alan Liu
 * Created: October 30 2002
 * Since: ICU 2.4

+* 2010nov19 Markus Scherer  Rewrite for formatVersion 2.

 **********************************************************************
 */
 #include "propname.h"
 #include "unicode/uchar.h"
 #include "unicode/udata.h"
 **********************************************************************
 */
 #include "propname.h"
 #include "unicode/uchar.h"
 #include "unicode/udata.h"

+#include "unicode/uscript.h"

 #include "umutex.h"
 #include "cmemory.h"
 #include "cstring.h"
 #include "umutex.h"
 #include "cmemory.h"
 #include "cstring.h"

-#include "ucln_cmn.h"

 #include "uarrsort.h"
 #include "uarrsort.h"

+#include "uinvchar.h"
+
+#define INCLUDED_FROM_PROPNAME_CPP
+#include "propname_data.h"

 
 U_CDECL_BEGIN
 
 
 U_CDECL_BEGIN
 


@@ -94,7 +99,7 @@ uprv_compareASCIIPropertyNames(const char *name1, const char *name2) {
         if(((r1|r2)&0xff)==0) {
             return 0;
         }
         if(((r1|r2)&0xff)==0) {
             return 0;
         }

-        
+

         /* Compare the lowercased characters */
         if(r1!=r2) {
             rc=(r1&0xff)-(r2&0xff);
         /* Compare the lowercased characters */
         if(r1!=r2) {
             rc=(r1&0xff)-(r2&0xff);


@@ -120,7 +125,7 @@ uprv_compareEBCDICPropertyNames(const char *name1, const char *name2) {
         if(((r1|r2)&0xff)==0) {
             return 0;
         }
         if(((r1|r2)&0xff)==0) {
             return 0;
         }

-        
+

         /* Compare the lowercased characters */
         if(r1!=r2) {
             rc=(r1&0xff)-(r2&0xff);
         /* Compare the lowercased characters */
         if(r1!=r2) {
             rc=(r1&0xff)-(r2&0xff);


@@ -138,620 +143,184 @@ U_CDECL_END
 
 U_NAMESPACE_BEGIN
 
 
 U_NAMESPACE_BEGIN
 

-//----------------------------------------------------------------------
-// PropertyAliases implementation
-
-const char*
-PropertyAliases::chooseNameInGroup(Offset offset,
-                                   UPropertyNameChoice choice) const {
-    int32_t c = choice;
-    if (!offset || c < 0) {
-        return NULL;
-    }
-    const Offset* p = (const Offset*) getPointer(offset);
-    while (c-- > 0) {
-        if (*p++ < 0) return NULL;
+int32_t PropNameData::findProperty(int32_t property) {
+    int32_t i=1;  // valueMaps index, initially after numRanges
+    for(int32_t numRanges=valueMaps[0]; numRanges>0; --numRanges) {
+        // Read and skip the start and limit of this range.
+        int32_t start=valueMaps[i];
+        int32_t limit=valueMaps[i+1];
+        i+=2;
+        if(property<start) {
+            break;
+        }
+        if(property<limit) {
+            return i+(property-start)*2;
+        }
+        i+=(limit-start)*2;  // Skip all entries for this range.

     }
     }

-    Offset a = *p;
-    if (a < 0) a = -a;
-    return (const char*) getPointerNull(a);
+    return 0;

 }
 
 }
 

-const ValueMap*
-PropertyAliases::getValueMap(EnumValue prop) const {
-    NonContiguousEnumToOffset* e2o = (NonContiguousEnumToOffset*) getPointer(enumToValue_offset);
-    Offset a = e2o->getOffset(prop);
-    return (const ValueMap*) (a ? getPointerNull(a) : NULL);
+int32_t PropNameData::findPropertyValueNameGroup(int32_t valueMapIndex, int32_t value) {
+    if(valueMapIndex==0) {
+        return 0;  // The property does not have named values.
+    }
+    ++valueMapIndex;  // Skip the BytesTrie offset.
+    int32_t numRanges=valueMaps[valueMapIndex++];
+    if(numRanges<0x10) {
+        // Ranges of values.
+        for(; numRanges>0; --numRanges) {
+            // Read and skip the start and limit of this range.
+            int32_t start=valueMaps[valueMapIndex];
+            int32_t limit=valueMaps[valueMapIndex+1];
+            valueMapIndex+=2;
+            if(value<start) {
+                break;
+            }
+            if(value<limit) {
+                return valueMaps[valueMapIndex+value-start];
+            }
+            valueMapIndex+=limit-start;  // Skip all entries for this range.
+        }
+    } else {
+        // List of values.
+        int32_t valuesStart=valueMapIndex;
+        int32_t nameGroupOffsetsStart=valueMapIndex+numRanges-0x10;
+        do {
+            int32_t v=valueMaps[valueMapIndex];
+            if(value<v) {
+                break;
+            }
+            if(value==v) {
+                return valueMaps[nameGroupOffsetsStart+valueMapIndex-valuesStart];
+            }
+        } while(++valueMapIndex<nameGroupOffsetsStart);
+    }
+    return 0;

 }
 
 }
 

-inline const char*
-PropertyAliases::getPropertyName(EnumValue prop,
-                                 UPropertyNameChoice choice) const {
-    NonContiguousEnumToOffset* e2n = (NonContiguousEnumToOffset*) getPointer(enumToName_offset);
-    return chooseNameInGroup(e2n->getOffset(prop), choice);
+const char *PropNameData::getName(const char *nameGroup, int32_t nameIndex) {
+    int32_t numNames=*nameGroup++;
+    if(nameIndex<0 || numNames<=nameIndex) {
+        return NULL;
+    }
+    // Skip nameIndex names.
+    for(; nameIndex>0; --nameIndex) {
+        nameGroup=uprv_strchr(nameGroup, 0)+1;
+    }
+    if(*nameGroup==0) {
+        return NULL;  // no name (Property[Value]Aliases.txt has "n/a")
+    }
+    return nameGroup;

 }
 
 }
 

-inline EnumValue
-PropertyAliases::getPropertyEnum(const char* alias) const {
-    NameToEnum* n2e = (NameToEnum*) getPointer(nameToEnum_offset);
-    return n2e->getEnum(alias, *this);
+UBool PropNameData::containsName(BytesTrie &trie, const char *name) {
+    if(name==NULL) {
+        return FALSE;
+    }
+    UStringTrieResult result=USTRINGTRIE_NO_VALUE;
+    char c;
+    while((c=*name++)!=0) {
+        c=uprv_invCharToLowercaseAscii(c);
+        // Ignore delimiters '-', '_', and ASCII White_Space.
+        if(c==0x2d || c==0x5f || c==0x20 || (0x09<=c && c<=0x0d)) {
+            continue;
+        }
+        if(!USTRINGTRIE_HAS_NEXT(result)) {
+            return FALSE;
+        }
+        result=trie.next((uint8_t)c);
+    }
+    return USTRINGTRIE_HAS_VALUE(result);

 }
 
 }
 

-inline const char*
-PropertyAliases::getPropertyValueName(EnumValue prop,
-                                      EnumValue value,
-                                      UPropertyNameChoice choice) const {
-    const ValueMap* vm = getValueMap(prop);
-    if (!vm) return NULL;
-    Offset a;
-    if (vm->enumToName_offset) {
-        a = ((EnumToOffset*) getPointer(vm->enumToName_offset))->
-            getOffset(value);
-    } else {
-        a = ((NonContiguousEnumToOffset*) getPointer(vm->ncEnumToName_offset))->
-            getOffset(value);
+const char *PropNameData::getPropertyName(int32_t property, int32_t nameChoice) {
+    int32_t valueMapIndex=findProperty(property);
+    if(valueMapIndex==0) {
+        return NULL;  // Not a known property.

     }
     }

-    return chooseNameInGroup(a, choice);
+    return getName(nameGroups+valueMaps[valueMapIndex], nameChoice);

 }
 
 }
 

-inline EnumValue
-PropertyAliases::getPropertyValueEnum(EnumValue prop,
-                                      const char* alias) const {
-    const ValueMap* vm = getValueMap(prop);
-    if (!vm) return UCHAR_INVALID_CODE;
-    NameToEnum* n2e = (NameToEnum*) getPointer(vm->nameToEnum_offset);
-    return n2e->getEnum(alias, *this);
+const char *PropNameData::getPropertyValueName(int32_t property, int32_t value, int32_t nameChoice) {
+    int32_t valueMapIndex=findProperty(property);
+    if(valueMapIndex==0) {
+        return NULL;  // Not a known property.
+    }
+    int32_t nameGroupOffset=findPropertyValueNameGroup(valueMaps[valueMapIndex+1], value);
+    if(nameGroupOffset==0) {
+        return NULL;
+    }
+    return getName(nameGroups+nameGroupOffset, nameChoice);

 }
 
 }
 

-U_NAMESPACE_END
-
-//----------------------------------------------------------------------
-// UDataMemory structures
-
-static const PropertyAliases* PNAME = NULL;
-static UDataMemory* UDATA = NULL;
-
-//----------------------------------------------------------------------
-// UDataMemory loading/unloading
-
-/**
- * udata callback to verify the zone data.
- */
-U_CDECL_BEGIN
-static UBool U_CALLCONV
-isPNameAcceptable(void* /*context*/,
-             const char* /*type*/, const char* /*name*/,
-             const UDataInfo* info) {
-    return
-        info->size >= sizeof(UDataInfo) &&
-        info->isBigEndian == U_IS_BIG_ENDIAN &&
-        info->charsetFamily == U_CHARSET_FAMILY &&
-        info->dataFormat[0] == PNAME_SIG_0 &&
-        info->dataFormat[1] == PNAME_SIG_1 &&
-        info->dataFormat[2] == PNAME_SIG_2 &&
-        info->dataFormat[3] == PNAME_SIG_3 &&
-        info->formatVersion[0] == PNAME_FORMAT_VERSION;
+int32_t PropNameData::getPropertyOrValueEnum(int32_t bytesTrieOffset, const char *alias) {
+    BytesTrie trie(bytesTries+bytesTrieOffset);
+    if(containsName(trie, alias)) {
+        return trie.getValue();
+    } else {
+        return UCHAR_INVALID_CODE;
+    }

 }
 
 }
 

-static UBool U_CALLCONV pname_cleanup(void) {
-    if (UDATA) {
-        udata_close(UDATA);
-        UDATA = NULL;
-    }
-    PNAME = NULL;
-    return TRUE;
+int32_t PropNameData::getPropertyEnum(const char *alias) {
+    return getPropertyOrValueEnum(0, alias);

 }
 }

-U_CDECL_END

 
 

-/**
- * Load the property names data.  Caller should check that data is
- * not loaded BEFORE calling this function.  Returns TRUE if the load
- * succeeds.
- */
-static UBool _load() {
-    UErrorCode ec = U_ZERO_ERROR;
-    UDataMemory* data =
-        udata_openChoice(0, PNAME_DATA_TYPE, PNAME_DATA_NAME,
-                         isPNameAcceptable, 0, &ec);
-    if (U_SUCCESS(ec)) {
-        umtx_lock(NULL);
-        if (UDATA == NULL) {
-            UDATA = data;
-            PNAME = (const PropertyAliases*) udata_getMemory(UDATA);
-            ucln_common_registerCleanup(UCLN_COMMON_PNAME, pname_cleanup);
-            data = NULL;
-        }
-        umtx_unlock(NULL);
+int32_t PropNameData::getPropertyValueEnum(int32_t property, const char *alias) {
+    int32_t valueMapIndex=findProperty(property);
+    if(valueMapIndex==0) {
+        return UCHAR_INVALID_CODE;  // Not a known property.

     }
     }

-    if (data) {
-        udata_close(data);
+    valueMapIndex=valueMaps[valueMapIndex+1];
+    if(valueMapIndex==0) {
+        return UCHAR_INVALID_CODE;  // The property does not have named values.

     }
     }

-    return PNAME!=NULL;
-}
-
-/**
- * Inline function that expands to code that does a lazy load of the
- * property names data.  If the data is already loaded, avoids an
- * unnecessary function call.  If the data is not loaded, call _load()
- * to load it, and return TRUE if the load succeeds.
- */
-static inline UBool load() {
-    UBool f;
-    UMTX_CHECK(NULL, (PNAME!=NULL), f);
-    return f || _load();
+    // valueMapIndex is the start of the property's valueMap,
+    // where the first word is the BytesTrie offset.
+    return getPropertyOrValueEnum(valueMaps[valueMapIndex], alias);

 }
 }

+U_NAMESPACE_END

 
 //----------------------------------------------------------------------
 // Public API implementation
 
 
 //----------------------------------------------------------------------
 // Public API implementation
 

-// The C API is just a thin wrapper.  Each function obtains a pointer
-// to the singleton PropertyAliases, and calls the appropriate method
-// on it.  If it cannot obtain a pointer, because valid data is not
-// available, then it returns NULL or UCHAR_INVALID_CODE.
-

 U_CAPI const char* U_EXPORT2
 u_getPropertyName(UProperty property,
                   UPropertyNameChoice nameChoice) {
 U_CAPI const char* U_EXPORT2
 u_getPropertyName(UProperty property,
                   UPropertyNameChoice nameChoice) {

-    return load() ? PNAME->getPropertyName(property, nameChoice)
-                  : NULL;
+    U_NAMESPACE_USE
+    return PropNameData::getPropertyName(property, nameChoice);

 }
 
 U_CAPI UProperty U_EXPORT2
 u_getPropertyEnum(const char* alias) {
 }
 
 U_CAPI UProperty U_EXPORT2
 u_getPropertyEnum(const char* alias) {

-    UProperty p = load() ? (UProperty) PNAME->getPropertyEnum(alias)
-                         : UCHAR_INVALID_CODE;
-    return p;
+    U_NAMESPACE_USE
+    return (UProperty)PropNameData::getPropertyEnum(alias);

 }
 
 U_CAPI const char* U_EXPORT2
 u_getPropertyValueName(UProperty property,
                        int32_t value,
                        UPropertyNameChoice nameChoice) {
 }
 
 U_CAPI const char* U_EXPORT2
 u_getPropertyValueName(UProperty property,
                        int32_t value,
                        UPropertyNameChoice nameChoice) {

-    return load() ? PNAME->getPropertyValueName(property, value, nameChoice)
-                  : NULL;
+    U_NAMESPACE_USE
+    return PropNameData::getPropertyValueName(property, value, nameChoice);

 }
 
 U_CAPI int32_t U_EXPORT2
 u_getPropertyValueEnum(UProperty property,
                        const char* alias) {
 }
 
 U_CAPI int32_t U_EXPORT2
 u_getPropertyValueEnum(UProperty property,
                        const char* alias) {

-    return load() ? PNAME->getPropertyValueEnum(property, alias)
-                  : (int32_t)UCHAR_INVALID_CODE;
-}
-
-/* data swapping ------------------------------------------------------------ */
-
-/*
- * Sub-structure-swappers use the temp array (which is as large as the
- * actual data) for intermediate storage,
- * as well as to indicate if a particular structure has been swapped already.
- * The temp array is initially reset to all 0.
- * pos is the byte offset of the sub-structure in the inBytes/outBytes/temp arrays.
- */
-
-int32_t
-EnumToOffset::swap(const UDataSwapper *ds,
-                   const uint8_t *inBytes, int32_t length, uint8_t *outBytes,
-                   uint8_t *temp, int32_t pos,
-                   UErrorCode *pErrorCode) {
-    const EnumToOffset *inMap;
-    EnumToOffset *outMap, *tempMap;
-    int32_t size;
-
-    tempMap=(EnumToOffset *)(temp+pos);
-    if(tempMap->enumStart!=0 || tempMap->enumLimit!=0) {
-        /* this map was swapped already */
-        size=tempMap->getSize();
-        return size;
-    }
-
-    inMap=(const EnumToOffset *)(inBytes+pos);
-    outMap=(EnumToOffset *)(outBytes+pos);
-
-    tempMap->enumStart=udata_readInt32(ds, inMap->enumStart);
-    tempMap->enumLimit=udata_readInt32(ds, inMap->enumLimit);
-    size=tempMap->getSize();
-
-    if(length>=0) {
-        if(length<(pos+size)) {
-            if(length<(int32_t)sizeof(PropertyAliases)) {
-                udata_printError(ds, "upname_swap(EnumToOffset): too few bytes (%d after header)\n"
-                                     "    for pnames.icu EnumToOffset{%d..%d} at %d\n",
-                                 length, tempMap->enumStart, tempMap->enumLimit, pos);
-                *pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR;
-                return 0;
-            }
-        }
-
-        /* swap enumStart and enumLimit */
-        ds->swapArray32(ds, inMap, 2*sizeof(EnumValue), outMap, pErrorCode);
-
-        /* swap _offsetArray[] */
-        ds->swapArray16(ds, inMap->getOffsetArray(), (tempMap->enumLimit-tempMap->enumStart)*sizeof(Offset),
-                           outMap->getOffsetArray(), pErrorCode);
-    }
-
-    return size;
-}
-
-int32_t
-NonContiguousEnumToOffset::swap(const UDataSwapper *ds,
-                   const uint8_t *inBytes, int32_t length, uint8_t *outBytes,
-                   uint8_t *temp, int32_t pos,
-                   UErrorCode *pErrorCode) {
-    const NonContiguousEnumToOffset *inMap;
-    NonContiguousEnumToOffset *outMap, *tempMap;
-    int32_t size;
-
-    tempMap=(NonContiguousEnumToOffset *)(temp+pos);
-    if(tempMap->count!=0) {
-        /* this map was swapped already */
-        size=tempMap->getSize();
-        return size;
-    }
-
-    inMap=(const NonContiguousEnumToOffset *)(inBytes+pos);
-    outMap=(NonContiguousEnumToOffset *)(outBytes+pos);
-
-    tempMap->count=udata_readInt32(ds, inMap->count);
-    size=tempMap->getSize();
-
-    if(length>=0) {
-        if(length<(pos+size)) {
-            if(length<(int32_t)sizeof(PropertyAliases)) {
-                udata_printError(ds, "upname_swap(NonContiguousEnumToOffset): too few bytes (%d after header)\n"
-                                     "    for pnames.icu NonContiguousEnumToOffset[%d] at %d\n",
-                                 length, tempMap->count, pos);
-                *pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR;
-                return 0;
-            }
-        }
-
-        /* swap count and _enumArray[] */
-        length=(1+tempMap->count)*sizeof(EnumValue);
-        ds->swapArray32(ds, inMap, length,
-                           outMap, pErrorCode);
-
-        /* swap _offsetArray[] */
-        pos+=length;
-        ds->swapArray16(ds, inBytes+pos, tempMap->count*sizeof(Offset),
-                           outBytes+pos, pErrorCode);
-    }
-
-    return size;
+    U_NAMESPACE_USE
+    return PropNameData::getPropertyValueEnum(property, alias);

 }
 
 }
 

-struct NameAndIndex {
-    Offset name, index;
-};
-
-U_CDECL_BEGIN
-typedef int32_t U_CALLCONV PropNameCompareFn(const char *name1, const char *name2);
-
-struct CompareContext {
-    const char *chars;
-    PropNameCompareFn *propCompare;
-};
-
-static int32_t U_CALLCONV
-upname_compareRows(const void *context, const void *left, const void *right) {
-    CompareContext *cmp=(CompareContext *)context;
-    return cmp->propCompare(cmp->chars+((const NameAndIndex *)left)->name,
-                            cmp->chars+((const NameAndIndex *)right)->name);
+U_CAPI const char*  U_EXPORT2
+uscript_getName(UScriptCode scriptCode){
+    return u_getPropertyValueName(UCHAR_SCRIPT, scriptCode,
+                                  U_LONG_PROPERTY_NAME);

 }
 }

-U_CDECL_END
-
-int32_t
-NameToEnum::swap(const UDataSwapper *ds,
-                   const uint8_t *inBytes, int32_t length, uint8_t *outBytes,
-                   uint8_t *temp, int32_t pos,
-                   UErrorCode *pErrorCode) {
-    const NameToEnum *inMap;
-    NameToEnum *outMap, *tempMap;
-
-    const EnumValue *inEnumArray;
-    EnumValue *outEnumArray;
-
-    const Offset *inNameArray;
-    Offset *outNameArray;
-
-    NameAndIndex *sortArray;
-    CompareContext cmp;
-
-    int32_t i, size, oldIndex;
-
-    tempMap=(NameToEnum *)(temp+pos);
-    if(tempMap->count!=0) {
-        /* this map was swapped already */
-        size=tempMap->getSize();
-        return size;
-    }
-
-    inMap=(const NameToEnum *)(inBytes+pos);
-    outMap=(NameToEnum *)(outBytes+pos);
-
-    tempMap->count=udata_readInt32(ds, inMap->count);
-    size=tempMap->getSize();
-
-    if(length>=0) {
-        if(length<(pos+size)) {
-            if(length<(int32_t)sizeof(PropertyAliases)) {
-                udata_printError(ds, "upname_swap(NameToEnum): too few bytes (%d after header)\n"
-                                     "    for pnames.icu NameToEnum[%d] at %d\n",
-                                 length, tempMap->count, pos);
-                *pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR;
-                return 0;
-            }
-        }
-
-        /* swap count */
-        ds->swapArray32(ds, inMap, 4, outMap, pErrorCode);
-
-        inEnumArray=inMap->getEnumArray();
-        outEnumArray=outMap->getEnumArray();
-
-        inNameArray=(const Offset *)(inEnumArray+tempMap->count);
-        outNameArray=(Offset *)(outEnumArray+tempMap->count);
-
-        if(ds->inCharset==ds->outCharset) {
-            /* no need to sort, just swap the enum/name arrays */
-            ds->swapArray32(ds, inEnumArray, tempMap->count*4, outEnumArray, pErrorCode);
-            ds->swapArray16(ds, inNameArray, tempMap->count*2, outNameArray, pErrorCode);
-            return size;
-        }
-
-        /*
-         * The name and enum arrays are sorted by names and must be resorted
-         * if inCharset!=outCharset.
-         * We use the corresponding part of the temp array to sort an array
-         * of pairs of name offsets and sorting indexes.
-         * Then the sorting indexes are used to permutate-swap the name and enum arrays.
-         *
-         * The outBytes must already contain the swapped strings.
-         */
-        sortArray=(NameAndIndex *)tempMap->getEnumArray();
-        for(i=0; i<tempMap->count; ++i) {
-            sortArray[i].name=udata_readInt16(ds, inNameArray[i]);
-            sortArray[i].index=(Offset)i;
-        }
-
-        /*
-         * use a stable sort to avoid shuffling of equal strings,
-         * which makes testing harder
-         */
-        cmp.chars=(const char *)outBytes;
-        if (ds->outCharset==U_ASCII_FAMILY) {
-            cmp.propCompare=uprv_compareASCIIPropertyNames;
-        }
-        else {
-            cmp.propCompare=uprv_compareEBCDICPropertyNames;
-        }
-        uprv_sortArray(sortArray, tempMap->count, sizeof(NameAndIndex),
-                       upname_compareRows, &cmp,
-                       TRUE, pErrorCode);
-        if(U_FAILURE(*pErrorCode)) {
-            udata_printError(ds, "upname_swap(NameToEnum).uprv_sortArray(%d items) failed\n",
-                             tempMap->count);
-            return 0;
-        }
-
-        /* copy/swap/permutate _enumArray[] and _nameArray[] */
-        if(inEnumArray!=outEnumArray) {
-            for(i=0; i<tempMap->count; ++i) {
-                oldIndex=sortArray[i].index;
-                ds->swapArray32(ds, inEnumArray+oldIndex, 4, outEnumArray+i, pErrorCode);
-                ds->swapArray16(ds, inNameArray+oldIndex, 2, outNameArray+i, pErrorCode);
-            }
-        } else {
-            /*
-             * in-place swapping: need to permutate into a temporary array
-             * and then copy back to not destroy the data
-             */
-            EnumValue *tempEnumArray;
-            Offset *oldIndexes;
-
-            /* write name offsets directly from sortArray */
-            for(i=0; i<tempMap->count; ++i) {
-                ds->writeUInt16((uint16_t *)outNameArray+i, (uint16_t)sortArray[i].name);
-            }
-
-            /*
-             * compress the oldIndexes into a separate array to make space for tempEnumArray
-             * the tempMap _nameArray becomes oldIndexes[], getting the index
-             *   values from the 2D sortArray[],
-             * while sortArray=tempMap _enumArray[] becomes tempEnumArray[]
-             * this saves us allocating more memory
-             *
-             * it works because sizeof(NameAndIndex)<=sizeof(EnumValue)
-             * and because the nameArray[] can be used for oldIndexes[]
-             */
-            tempEnumArray=(EnumValue *)sortArray;
-            oldIndexes=(Offset *)(sortArray+tempMap->count);
-
-            /* copy sortArray[].index values into oldIndexes[] */
-            for(i=0; i<tempMap->count; ++i) {
-                oldIndexes[i]=sortArray[i].index;
-            }
-
-            /* permutate inEnumArray[] into tempEnumArray[] */
-            for(i=0; i<tempMap->count; ++i) {
-                ds->swapArray32(ds, inEnumArray+oldIndexes[i], 4, tempEnumArray+i, pErrorCode);
-            }
-
-            /* copy tempEnumArray[] to outEnumArray[] */
-            uprv_memcpy(outEnumArray, tempEnumArray, tempMap->count*4);
-        }
-    }

 
 

-    return size;
+U_CAPI const char*  U_EXPORT2
+uscript_getShortName(UScriptCode scriptCode){
+    return u_getPropertyValueName(UCHAR_SCRIPT, scriptCode,
+                                  U_SHORT_PROPERTY_NAME);

 }
 }

-
-int32_t
-PropertyAliases::swap(const UDataSwapper *ds,
-                      const uint8_t *inBytes, int32_t length, uint8_t *outBytes,
-                      UErrorCode *pErrorCode) {
-    const PropertyAliases *inAliases;
-    PropertyAliases *outAliases;
-    PropertyAliases aliases;
-
-    const ValueMap *inValueMaps;
-    ValueMap *outValueMaps;
-    ValueMap valueMap;
-
-    uint8_t *temp;
-
-    int32_t i;
-
-    inAliases=(const PropertyAliases *)inBytes;
-    outAliases=(PropertyAliases *)outBytes;
-
-    /* read the input PropertyAliases - all 16-bit values */
-    for(i=0; i<(int32_t)sizeof(PropertyAliases)/2; ++i) {
-        ((uint16_t *)&aliases)[i]=ds->readUInt16(((const uint16_t *)inBytes)[i]);
-    }
-
-    if(length>=0) {
-        if(length<aliases.total_size) {
-            udata_printError(ds, "upname_swap(): too few bytes (%d after header) for all of pnames.icu\n",
-                             length);
-            *pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR;
-            return 0;
-        }
-
-        /* copy the data for inaccessible bytes */
-        if(inBytes!=outBytes) {
-            uprv_memcpy(outBytes, inBytes, aliases.total_size);
-        }
-
-        /* swap the PropertyAliases class fields */
-        ds->swapArray16(ds, inAliases, sizeof(PropertyAliases), outAliases, pErrorCode);
-
-        /* swap the name groups */
-        ds->swapArray16(ds, inBytes+aliases.nameGroupPool_offset,
-                                aliases.stringPool_offset-aliases.nameGroupPool_offset,
-                           outBytes+aliases.nameGroupPool_offset, pErrorCode);
-
-        /* swap the strings */
-        udata_swapInvStringBlock(ds, inBytes+aliases.stringPool_offset,
-                                        aliases.total_size-aliases.stringPool_offset,
-                                    outBytes+aliases.stringPool_offset, pErrorCode);
-
-        /*
-         * alloc uint8_t temp[total_size] and reset it
-         * swap each top-level struct, put at least the count fields into temp
-         *   use subclass-specific swap() functions
-         * enumerate value maps, for each
-         *   if temp does not have count!=0 yet
-         *     read count, put it into temp
-         *     swap the array(s)
-         *     resort strings in name->enum maps
-         * swap value maps
-         */
-        temp=(uint8_t *)uprv_malloc(aliases.total_size);
-        if(temp==NULL) {
-            udata_printError(ds, "upname_swap(): unable to allocate temp memory (%d bytes)\n",
-                             aliases.total_size);
-            *pErrorCode=U_MEMORY_ALLOCATION_ERROR;
-            return 0;
-        }
-        uprv_memset(temp, 0, aliases.total_size);
-
-        /* swap properties->name groups map */
-        NonContiguousEnumToOffset::swap(ds, inBytes, length, outBytes,
-                                        temp, aliases.enumToName_offset, pErrorCode);
-
-        /* swap name->properties map */
-        NameToEnum::swap(ds, inBytes, length, outBytes,
-                         temp, aliases.nameToEnum_offset, pErrorCode);
-
-        /* swap properties->value maps map */
-        NonContiguousEnumToOffset::swap(ds, inBytes, length, outBytes,
-                                        temp, aliases.enumToValue_offset, pErrorCode);
-
-        /* enumerate all ValueMaps and swap them */
-        inValueMaps=(const ValueMap *)(inBytes+aliases.valueMap_offset);
-        outValueMaps=(ValueMap *)(outBytes+aliases.valueMap_offset);
-
-        for(i=0; i<aliases.valueMap_count; ++i) {
-            valueMap.enumToName_offset=udata_readInt16(ds, inValueMaps[i].enumToName_offset);
-            valueMap.ncEnumToName_offset=udata_readInt16(ds, inValueMaps[i].ncEnumToName_offset);
-            valueMap.nameToEnum_offset=udata_readInt16(ds, inValueMaps[i].nameToEnum_offset);
-
-            if(valueMap.enumToName_offset!=0) {
-                EnumToOffset::swap(ds, inBytes, length, outBytes,
-                                   temp, valueMap.enumToName_offset,
-                                   pErrorCode);
-            } else if(valueMap.ncEnumToName_offset!=0) {
-                NonContiguousEnumToOffset::swap(ds, inBytes, length, outBytes,
-                                                temp, valueMap.ncEnumToName_offset,
-                                                pErrorCode);
-            }
-            if(valueMap.nameToEnum_offset!=0) {
-                NameToEnum::swap(ds, inBytes, length, outBytes,
-                                 temp, valueMap.nameToEnum_offset,
-                                 pErrorCode);
-            }
-        }
-
-        /* swap the ValueMaps array itself */
-        ds->swapArray16(ds, inValueMaps, aliases.valueMap_count*sizeof(ValueMap),
-                           outValueMaps, pErrorCode);
-
-        /* name groups and strings were swapped above */
-
-        /* release temp */
-        uprv_free(temp);
-    }
-
-    return aliases.total_size;
-}
-
-U_CAPI int32_t U_EXPORT2
-upname_swap(const UDataSwapper *ds,
-            const void *inData, int32_t length, void *outData,
-            UErrorCode *pErrorCode) {
-    const UDataInfo *pInfo;
-    int32_t headerSize;
-
-    const uint8_t *inBytes;
-    uint8_t *outBytes;
-
-    /* udata_swapDataHeader checks the arguments */
-    headerSize=udata_swapDataHeader(ds, inData, length, outData, pErrorCode);
-    if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
-        return 0;
-    }
-
-    /* check data format and format version */
-    pInfo=(const UDataInfo *)((const char *)inData+4);
-    if(!(
-        pInfo->dataFormat[0]==0x70 &&   /* dataFormat="pnam" */
-        pInfo->dataFormat[1]==0x6e &&
-        pInfo->dataFormat[2]==0x61 &&
-        pInfo->dataFormat[3]==0x6d &&
-        pInfo->formatVersion[0]==1
-    )) {
-        udata_printError(ds, "upname_swap(): data format %02x.%02x.%02x.%02x (format version %02x) is not recognized as pnames.icu\n",
-                         pInfo->dataFormat[0], pInfo->dataFormat[1],
-                         pInfo->dataFormat[2], pInfo->dataFormat[3],
-                         pInfo->formatVersion[0]);
-        *pErrorCode=U_UNSUPPORTED_ERROR;
-        return 0;
-    }
-
-    inBytes=(const uint8_t *)inData+headerSize;
-    outBytes=(uint8_t *)outData+headerSize;
-
-    if(length>=0) {
-        length-=headerSize;
-        if(length<(int32_t)sizeof(PropertyAliases)) {
-            udata_printError(ds, "upname_swap(): too few bytes (%d after header) for pnames.icu\n",
-                             length);
-            *pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR;
-            return 0;
-        }
-    }
-
-    return headerSize+PropertyAliases::swap(ds, inBytes, length, outBytes, pErrorCode);
-}
-
-//eof