1532 lines
47 KiB
C
1532 lines
47 KiB
C
/*
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*******************************************************************************
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*
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* Copyright (C) 1999-2001, International Business Machines
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* Corporation and others. All Rights Reserved.
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*
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*******************************************************************************
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* file name: store.c
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* encoding: US-ASCII
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* tab size: 8 (not used)
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* indentation:4
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*
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* created on: 2001may25
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* created by: Markus W. Scherer
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*
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* Store Unicode normalization data in a memory-mappable file.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include "unicode/utypes.h"
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#include "unicode/uchar.h"
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#include "cmemory.h"
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#include "cstring.h"
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#include "filestrm.h"
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#include "unicode/udata.h"
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#include "unewdata.h"
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#include "unormimp.h"
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#include "gennorm.h"
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#ifdef WIN32
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# pragma warning(disable: 4100)
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#endif
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#define DO_DEBUG_OUT 0
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/*
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* The new implementation of the normalization code loads its data from
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* unorm.dat, which is generated with this gennorm tool.
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* The format of that file is described in unormimp.h .
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*/
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/* file data ---------------------------------------------------------------- */
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/* UDataInfo cf. udata.h */
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static UDataInfo dataInfo={
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sizeof(UDataInfo),
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0,
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U_IS_BIG_ENDIAN,
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U_CHARSET_FAMILY,
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U_SIZEOF_UCHAR,
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0,
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{ 0x4e, 0x6f, 0x72, 0x6d }, /* dataFormat="Norm" */
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{1, 0, 0, _NORM_TRIE_SHIFT}, /* formatVersion - [3] contains the trie shift! */
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{3, 1, 0, 0} /* dataVersion (Unicode version) */
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};
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extern void
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setUnicodeVersion(const char *v) {
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UVersionInfo version;
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u_versionFromString(version, v);
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uprv_memcpy(dataInfo.dataVersion, version, 4);
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}
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static uint16_t indexes[_NORM_INDEX_TOP]={ 0 };
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/* tool memory helper ------------------------------------------------------- */
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/*
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* UToolMemory is used for generic, custom memory management.
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* It is allocated with enough space for count*size bytes starting
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* at array.
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* The array is declared with a union of large data types so
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* that its base address is aligned for any types.
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* If size is a multiple of a data type size, then such items
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* can be safely allocated inside the array, at offsets that
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* are themselves multiples of size.
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*/
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typedef struct UToolMemory {
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char name[64];
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uint32_t count, size, index;
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union {
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uint32_t u;
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double d;
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void *p;
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} array[1];
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} UToolMemory;
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static UToolMemory *
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utm_open(const char *name, uint32_t count, uint32_t size) {
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UToolMemory *mem=(UToolMemory *)uprv_malloc(sizeof(UToolMemory)+count*size);
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if(mem==NULL) {
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fprintf(stderr, "error: %s - out of memory\n", name);
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exit(U_MEMORY_ALLOCATION_ERROR);
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}
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uprv_strcpy(mem->name, name);
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mem->count=count;
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mem->size=size;
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mem->index=0;
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return mem;
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}
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/* we don't use this - we don't clean up memory here... */
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static void
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utm_close(UToolMemory *mem) {
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if(mem!=NULL) {
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uprv_free(mem);
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}
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}
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static void *
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utm_getStart(UToolMemory *mem) {
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return (char *)mem->array;
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}
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static void *
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utm_alloc(UToolMemory *mem) {
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char *p=(char *)mem->array+mem->index*mem->size;
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if(++mem->index<=mem->count) {
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uprv_memset(p, 0, mem->size);
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return p;
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} else {
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fprintf(stderr, "error: %s - trying to use more than %ld preallocated units\n",
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mem->name, (long)mem->count);
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exit(U_MEMORY_ALLOCATION_ERROR);
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}
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}
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static void *
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utm_allocN(UToolMemory *mem, int32_t n) {
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char *p=(char *)mem->array+mem->index*mem->size;
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if((mem->index+=(uint32_t)n)<=mem->count) {
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uprv_memset(p, 0, n*mem->size);
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return p;
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} else {
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fprintf(stderr, "error: %s - trying to use more than %ld preallocated units\n",
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mem->name, (long)mem->count);
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exit(U_MEMORY_ALLOCATION_ERROR);
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}
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}
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/* builder data ------------------------------------------------------------- */
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typedef void EnumTrieFn(void *context, uint32_t code, Norm *norm);
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static UToolMemory *stage2Mem, *normMem, *utf32Mem, *extraMem, *combiningTriplesMem;
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static uint16_t stage1[_NORM_STAGE_1_MAX_COUNT], fcdStage1[_NORM_STAGE_1_MAX_COUNT];
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static uint16_t *stage2;
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static Norm *norms;
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/*
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* set a flag for each code point that was seen in decompositions -
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* avoid to decompose ones that have not been used before
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*/
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static uint32_t haveSeenFlags[256];
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static uint32_t combiningCPs[2000];
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static uint16_t combiningIndexes[2000];
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static uint16_t combineFwdTop=0, combineBothTop=0, combineBackTop=0;
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typedef struct CombiningTriple {
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uint16_t leadIndex, trailIndex;
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uint32_t lead, trail, combined;
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} CombiningTriple;
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/* 15b in the combining index -> <=0x8000 uint16_t values in the combining table */
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static uint16_t combiningTable[0x8000];
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static uint16_t combiningTableTop=0;
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/* stage 2 table after turning Norm structs into 32-bit words */
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static uint32_t *norm32Table=NULL, *fcdTable=NULL;
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/* number of units used in stage 1 and norm32Table, and same for FCD */
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static uint16_t stage1Top, fcdStage1Top,
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norm32TableTop, fcdTableTop;
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extern void
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init() {
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/* reset stage 1 of the trie */
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uprv_memset(stage1, 0, sizeof(stage1));
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/* allocate stage 2 of the trie and reset the first block */
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stage2Mem=utm_open("gennorm trie stage 2", 30000, sizeof(*stage2));
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stage2=utm_allocN(stage2Mem, _NORM_STAGE_2_BLOCK_COUNT);
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/* allocate Norm structures and reset the first one */
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normMem=utm_open("gennorm normalization structs", 20000, sizeof(Norm));
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norms=utm_alloc(normMem);
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/* allocate UTF-32 string memory */
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utf32Mem=utm_open("gennorm UTF-32 strings", 30000, 4);
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/* reset all "have seen" flags */
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uprv_memset(haveSeenFlags, 0, sizeof(haveSeenFlags));
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/* allocate extra data memory for UTF-16 decomposition strings and other values */
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extraMem=utm_open("gennorm extra 16-bit memory", _NORM_EXTRA_INDEX_TOP, 2);
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/* allocate temporary memory for combining triples */
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combiningTriplesMem=utm_open("gennorm combining triples", 0x4000, sizeof(CombiningTriple));
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/* set the minimum code points for no/maybe quick check values to the end of the BMP */
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indexes[_NORM_INDEX_MIN_NFC_NO_MAYBE]=0xffff;
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indexes[_NORM_INDEX_MIN_NFKC_NO_MAYBE]=0xffff;
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indexes[_NORM_INDEX_MIN_NFD_NO_MAYBE]=0xffff;
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indexes[_NORM_INDEX_MIN_NFKD_NO_MAYBE]=0xffff;
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}
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/* get or create a block in stage 2 of the trie */
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static uint16_t
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createStage2Block(uint32_t code) {
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uint32_t i;
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uint16_t j;
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i=code>>_NORM_TRIE_SHIFT;
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j=stage1[i];
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if(j==0) {
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/* allocate a stage 2 block */
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uint16_t *p;
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p=(uint16_t *)utm_allocN(stage2Mem, _NORM_STAGE_2_BLOCK_COUNT);
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stage1[i]=j=(uint16_t)(p-stage2);
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}
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return j;
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}
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/*
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* get or create a Norm unit;
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* get or create the intermediate trie entries for it as well
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*/
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static Norm *
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createNorm(uint32_t code) {
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Norm *p;
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uint16_t stage2Block, k;
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stage2Block=createStage2Block(code);
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k=(uint16_t)(stage2Block+(code&_NORM_STAGE_2_MASK));
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if(stage2[k]==0) {
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/* allocate Norm */
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p=(Norm *)utm_alloc(normMem);
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stage2[k]=(uint16_t)(p-norms);
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} else {
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p=norms+stage2[k];
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}
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return p;
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}
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/* get an existing Norm unit */
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static Norm *
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getNorm(uint32_t code) {
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uint32_t i;
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uint16_t j;
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/* access stage 1 and get the stage 2 block start index */
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i=code>>_NORM_TRIE_SHIFT;
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j=stage1[i];
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if(j==0) {
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return NULL;
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}
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/* access stage 2 and get the Norm unit */
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i=(uint16_t)(j+(code&_NORM_STAGE_2_MASK));
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j=stage2[i];
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if(j==0) {
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return NULL;
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} else {
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return norms+j;
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}
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}
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/* get the canonical combining class of a character */
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static uint8_t
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getCCFromCP(uint32_t code) {
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Norm *norm=getNorm(code);
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if(norm==NULL) {
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return 0;
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} else {
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return norm->udataCC;
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}
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}
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/*
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* enumerate all code points with their Norm structs and call a function for each
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* return the number of code points with data
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*/
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static uint32_t
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enumTrie(EnumTrieFn *fn, void *context) {
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uint32_t code, count, i;
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uint16_t j, k, l;
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code=0;
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count=0;
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for(i=0; i<_NORM_STAGE_1_MAX_COUNT; ++i) {
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j=stage1[i];
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if(j!=0) {
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for(k=0; k<_NORM_STAGE_2_BLOCK_COUNT; ++k) {
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l=stage2[j+k];
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if(l!=0) {
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fn(context, code, norms+l);
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++count;
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}
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++code;
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}
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} else {
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code+=_NORM_STAGE_2_BLOCK_COUNT;
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}
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}
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return count;
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}
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static void
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setHaveSeenString(const uint32_t *s, int32_t length) {
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uint32_t c;
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while(length>0) {
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c=*s++;
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haveSeenFlags[(c>>5)&0xff]|=(1<<(c&0x1f));
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--length;
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}
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}
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#define HAVE_SEEN(c) (haveSeenFlags[((c)>>5)&0xff]&(1<<((c)&0x1f)))
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/* handle combining data ---------------------------------------------------- */
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static void
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addCombiningCP(uint32_t code, uint8_t flags) {
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uint32_t newEntry;
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uint16_t i;
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newEntry=code|((uint32_t)flags<<24);
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/* search for this code point */
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for(i=0; i<combineBackTop; ++i) {
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if(code==(combiningCPs[i]&0xffffff)) {
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/* found it */
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if(newEntry==combiningCPs[i]) {
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return; /* no change */
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}
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/* combine the flags, remove the old entry from the old place, and insert the new one */
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newEntry|=combiningCPs[i];
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if(i!=--combineBackTop) {
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uprv_memmove(combiningCPs+i, combiningCPs+i+1, (combineBackTop-i)*4);
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}
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if(i<combineBothTop) {
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--combineBothTop;
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}
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if(i<combineFwdTop) {
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--combineFwdTop;
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}
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break;
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}
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}
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/* not found or modified, insert it */
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if(combineBackTop>=sizeof(combiningCPs)/4) {
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fprintf(stderr, "error: gennorm combining code points - trying to use more than %ld units\n",
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(long)(sizeof(combiningCPs)/4));
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exit(U_MEMORY_ALLOCATION_ERROR);
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}
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/* set i to the insertion point */
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flags=(uint8_t)(newEntry>>24);
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if(flags==1) {
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i=combineFwdTop++;
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++combineBothTop;
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} else if(flags==3) {
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i=combineBothTop++;
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} else /* flags==2 */ {
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i=combineBackTop;
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}
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/* move the following code points up one and insert newEntry at i */
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if(i<combineBackTop) {
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uprv_memmove(combiningCPs+i+1, combiningCPs+i, (combineBackTop-i)*4);
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}
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combiningCPs[i]=newEntry;
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/* finally increment the total counter */
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++combineBackTop;
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}
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static uint16_t
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findCombiningCP(uint32_t code, UBool isLead) {
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uint16_t i, limit;
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if(isLead) {
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i=0;
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limit=combineBothTop;
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} else {
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i=combineFwdTop;
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limit=combineBackTop;
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}
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/* search for this code point */
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for(; i<limit; ++i) {
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if(code==(combiningCPs[i]&0xffffff)) {
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/* found it */
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return i;
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}
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}
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/* not found */
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return 0xffff;
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}
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static void
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addCombiningTriple(uint32_t lead, uint32_t trail, uint32_t combined) {
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CombiningTriple *triple;
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/*
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* set combiningFlags for the two code points
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* do this after decomposition so that getNorm() above returns NULL
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* if we do not have actual sub-decomposition data for the initial NFD here
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*/
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createNorm(lead)->combiningFlags|=1; /* combines forward */
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createNorm(trail)->combiningFlags|=2; /* combines backward */
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addCombiningCP(lead, 1);
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addCombiningCP(trail, 2);
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triple=(CombiningTriple *)utm_alloc(combiningTriplesMem);
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triple->lead=lead;
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triple->trail=trail;
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triple->combined=combined;
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}
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static int
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compareTriples(const void *l, const void *r) {
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int diff;
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diff=(int)((CombiningTriple *)l)->leadIndex-
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(int)((CombiningTriple *)r)->leadIndex;
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if(diff==0) {
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diff=(int)((CombiningTriple *)l)->trailIndex-
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(int)((CombiningTriple *)r)->trailIndex;
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}
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return diff;
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}
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static void
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processCombining() {
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CombiningTriple *triples;
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uint16_t *p;
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uint32_t combined;
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uint16_t i, j, count, tableTop, finalIndex, combinesFwd;
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triples=utm_getStart(combiningTriplesMem);
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/* add lead and trail indexes to the triples for sorting */
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count=(uint16_t)combiningTriplesMem->index;
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for(i=0; i<count; ++i) {
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/* findCombiningCP() must always find the code point */
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triples[i].leadIndex=findCombiningCP(triples[i].lead, TRUE);
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triples[i].trailIndex=findCombiningCP(triples[i].trail, FALSE);
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}
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/* sort them by leadIndex, trailIndex */
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qsort(triples, count, sizeof(CombiningTriple), compareTriples);
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/* calculate final combining indexes and store them in the Norm entries */
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tableTop=0;
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j=0; /* triples counter */
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/* first, combining indexes of fwd/both characters are indexes into the combiningTable */
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for(i=0; i<combineBothTop; ++i) {
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/* start a new table */
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/* assign combining index */
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createNorm(combiningCPs[i]&0xffffff)->combiningIndex=combiningIndexes[i]=tableTop;
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/* calculate the length of the combining data for this lead code point in the combiningTable */
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while(j<count && i==triples[j].leadIndex) {
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/* count 2 to 3 16-bit units per composition entry (back-index, code point) */
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combined=triples[j++].combined;
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if(combined<=0x1fff) {
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tableTop+=2;
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} else {
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tableTop+=3;
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}
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}
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}
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/* second, combining indexes of back-only characters are simply incremented from here to be unique */
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finalIndex=tableTop;
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for(; i<combineBackTop; ++i) {
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createNorm(combiningCPs[i]&0xffffff)->combiningIndex=combiningIndexes[i]=finalIndex++;
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}
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/* it must be finalIndex<=0x8000 because bit 15 is used in combiningTable as an end-for-this-lead marker */
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if(finalIndex>0x8000) {
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fprintf(stderr, "error: gennorm combining table - trying to use %u units, more than the %ld units available\n",
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tableTop, (long)(sizeof(combiningTable)/4));
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exit(U_MEMORY_ALLOCATION_ERROR);
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}
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combiningTableTop=tableTop;
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/* store the combining data in the combiningTable, with the final indexes from above */
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p=combiningTable;
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j=0; /* triples counter */
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/*
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* this is essentially the same loop as above, but
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* it writes the table data instead of calculating and setting the final indexes;
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|
* it is necessary to have two passes so that all the final indexes are known before
|
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* they are written into the table
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*/
|
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for(i=0; i<combineBothTop; ++i) {
|
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/* start a new table */
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|
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combined=0; /* avoid compiler warning */
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|
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/* store the combining data for this lead code point in the combiningTable */
|
|
while(j<count && i==triples[j].leadIndex) {
|
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finalIndex=combiningIndexes[triples[j].trailIndex];
|
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combined=triples[j++].combined;
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|
|
/* is combined a starter? (i.e., cc==0 && combines forward) */
|
|
combinesFwd=(uint16_t)((getNorm(combined)->combiningFlags&1)<<13);
|
|
|
|
*p++=finalIndex;
|
|
if(combined<=0x1fff) {
|
|
*p++=(uint16_t)(combinesFwd|combined);
|
|
} else if(combined<=0xffff) {
|
|
*p++=(uint16_t)(0x8000|combinesFwd);
|
|
*p++=(uint16_t)combined;
|
|
} else {
|
|
*p++=(uint16_t)(0xc000|combinesFwd|((combined-0x10000)>>10));
|
|
*p++=(uint16_t)(0xdc00|(combined&0x3ff));
|
|
}
|
|
}
|
|
|
|
/* set a marker on the last final trail index in this lead's table */
|
|
if(combined<=0x1ffff) {
|
|
*(p-2)|=0x8000;
|
|
} else {
|
|
*(p-3)|=0x8000;
|
|
}
|
|
}
|
|
|
|
/* post condition: tableTop==(p-combiningTable) */
|
|
}
|
|
|
|
/* processing incoming normalization data ----------------------------------- */
|
|
|
|
/*
|
|
* decompose the one decomposition further, may generate two decompositions
|
|
* apply all previous characters' decompositions to this one
|
|
*/
|
|
static void
|
|
decompStoreNewNF(uint32_t code, Norm *norm) {
|
|
uint32_t nfd[40], nfkd[40];
|
|
uint32_t *s32;
|
|
Norm *p;
|
|
uint32_t c;
|
|
int32_t i, length;
|
|
uint8_t lenNFD=0, lenNFKD=0;
|
|
UBool changedNFD=FALSE, changedNFKD=FALSE;
|
|
|
|
if((length=norm->lenNFD)!=0) {
|
|
/* always allocate the original string */
|
|
changedNFD=TRUE;
|
|
s32=norm->nfd;
|
|
} else if((length=norm->lenNFKD)!=0) {
|
|
/* always allocate the original string */
|
|
changedNFKD=TRUE;
|
|
s32=norm->nfkd;
|
|
} else {
|
|
/* no decomposition here, nothing to do */
|
|
return;
|
|
}
|
|
|
|
/* decompose each code point */
|
|
for(i=0; i<length; ++i) {
|
|
c=s32[i];
|
|
p=getNorm(c);
|
|
if(p==NULL) {
|
|
/* no data, no decomposition */
|
|
nfd[lenNFD++]=c;
|
|
nfkd[lenNFKD++]=c;
|
|
continue;
|
|
}
|
|
|
|
/* canonically decompose c */
|
|
if(changedNFD) {
|
|
if(p->lenNFD!=0) {
|
|
uprv_memcpy(nfd+lenNFD, p->nfd, p->lenNFD*4);
|
|
lenNFD+=p->lenNFD;
|
|
} else {
|
|
nfd[lenNFD++]=c;
|
|
}
|
|
}
|
|
|
|
/* compatibility-decompose c */
|
|
if(p->lenNFKD!=0) {
|
|
uprv_memcpy(nfkd+lenNFKD, p->nfkd, p->lenNFKD*4);
|
|
lenNFKD+=p->lenNFKD;
|
|
changedNFKD=TRUE;
|
|
} else if(p->lenNFD!=0) {
|
|
uprv_memcpy(nfkd+lenNFKD, p->nfd, p->lenNFD*4);
|
|
lenNFKD+=p->lenNFD;
|
|
changedNFKD=TRUE;
|
|
} else {
|
|
nfkd[lenNFKD++]=c;
|
|
}
|
|
}
|
|
|
|
/* assume that norm->lenNFD==1 or ==2 */
|
|
if(norm->lenNFD==2 && !(norm->combiningFlags&0x80)) {
|
|
addCombiningTriple(s32[0], s32[1], code);
|
|
}
|
|
|
|
if(changedNFD) {
|
|
if(lenNFD!=0) {
|
|
s32=utm_allocN(utf32Mem, lenNFD);
|
|
uprv_memcpy(s32, nfd, lenNFD*4);
|
|
} else {
|
|
s32=NULL;
|
|
}
|
|
norm->lenNFD=lenNFD;
|
|
norm->nfd=s32;
|
|
setHaveSeenString(nfd, lenNFD);
|
|
}
|
|
if(changedNFKD) {
|
|
if(lenNFKD!=0) {
|
|
s32=utm_allocN(utf32Mem, lenNFKD);
|
|
uprv_memcpy(s32, nfkd, lenNFKD*4);
|
|
} else {
|
|
s32=NULL;
|
|
}
|
|
norm->lenNFKD=lenNFKD;
|
|
norm->nfkd=s32;
|
|
setHaveSeenString(nfkd, lenNFKD);
|
|
}
|
|
}
|
|
|
|
typedef struct DecompSingle {
|
|
uint32_t c;
|
|
Norm *norm;
|
|
} DecompSingle;
|
|
|
|
/*
|
|
* apply this one character's decompositions (there is at least one!) to
|
|
* all previous characters' decompositions to decompose them further
|
|
*/
|
|
static void
|
|
decompWithSingleFn(void *context, uint32_t code, Norm *norm) {
|
|
uint32_t nfd[40], nfkd[40];
|
|
uint32_t *s32;
|
|
DecompSingle *me=(DecompSingle *)context;
|
|
uint32_t c, myC;
|
|
int32_t i, length;
|
|
uint8_t lenNFD=0, lenNFKD=0, myLenNFD, myLenNFKD;
|
|
UBool changedNFD=FALSE, changedNFKD=FALSE;
|
|
|
|
/* get the new character's data */
|
|
myC=me->c;
|
|
myLenNFD=me->norm->lenNFD;
|
|
myLenNFKD=me->norm->lenNFKD;
|
|
/* assume that myC has at least one decomposition */
|
|
|
|
if((length=norm->lenNFD)!=0 && myLenNFD!=0) {
|
|
/* apply NFD(myC) to norm->nfd */
|
|
s32=norm->nfd;
|
|
for(i=0; i<length; ++i) {
|
|
c=s32[i];
|
|
if(c==myC) {
|
|
uprv_memcpy(nfd+lenNFD, me->norm->nfd, myLenNFD*4);
|
|
lenNFD+=myLenNFD;
|
|
changedNFD=TRUE;
|
|
} else {
|
|
nfd[lenNFD++]=c;
|
|
}
|
|
}
|
|
}
|
|
|
|
if((length=norm->lenNFKD)!=0) {
|
|
/* apply NFD(myC) and NFKD(myC) to norm->nfkd */
|
|
s32=norm->nfkd;
|
|
for(i=0; i<length; ++i) {
|
|
c=s32[i];
|
|
if(c==myC) {
|
|
if(myLenNFKD!=0) {
|
|
uprv_memcpy(nfkd+lenNFKD, me->norm->nfkd, myLenNFKD*4);
|
|
lenNFKD+=myLenNFKD;
|
|
} else /* assume myLenNFD!=0 */ {
|
|
uprv_memcpy(nfkd+lenNFKD, me->norm->nfd, myLenNFD*4);
|
|
lenNFKD+=myLenNFD;
|
|
}
|
|
changedNFKD=TRUE;
|
|
} else {
|
|
nfkd[lenNFKD++]=c;
|
|
}
|
|
}
|
|
} else if((length=norm->lenNFD)!=0 && myLenNFKD!=0) {
|
|
/* apply NFKD(myC) to norm->nfd, forming a new norm->nfkd */
|
|
s32=norm->nfd;
|
|
for(i=0; i<length; ++i) {
|
|
c=s32[i];
|
|
if(c==myC) {
|
|
uprv_memcpy(nfkd+lenNFKD, me->norm->nfkd, myLenNFKD*4);
|
|
lenNFKD+=myLenNFKD;
|
|
changedNFKD=TRUE;
|
|
} else {
|
|
nfkd[lenNFKD++]=c;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* set the new decompositions, forget the old ones */
|
|
if(changedNFD) {
|
|
if(lenNFD!=0) {
|
|
if(lenNFD>norm->lenNFD) {
|
|
s32=utm_allocN(utf32Mem, lenNFD);
|
|
} else {
|
|
s32=norm->nfd;
|
|
}
|
|
uprv_memcpy(s32, nfd, lenNFD*4);
|
|
} else {
|
|
s32=NULL;
|
|
}
|
|
norm->lenNFD=lenNFD;
|
|
norm->nfd=s32;
|
|
}
|
|
if(changedNFKD) {
|
|
if(lenNFKD!=0) {
|
|
if(lenNFKD>norm->lenNFKD) {
|
|
s32=utm_allocN(utf32Mem, lenNFKD);
|
|
} else {
|
|
s32=norm->nfkd;
|
|
}
|
|
uprv_memcpy(s32, nfkd, lenNFKD*4);
|
|
} else {
|
|
s32=NULL;
|
|
}
|
|
norm->lenNFKD=lenNFKD;
|
|
norm->nfkd=s32;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* process the data for one code point listed in UnicodeData;
|
|
* UnicodeData itself never maps a code point to both NFD and NFKD
|
|
*/
|
|
extern void
|
|
storeNorm(uint32_t code, Norm *norm) {
|
|
DecompSingle decompSingle;
|
|
Norm *p;
|
|
|
|
/* copy existing derived normalization properties */
|
|
p=createNorm(code);
|
|
norm->qcFlags=p->qcFlags;
|
|
norm->combiningFlags=p->combiningFlags;
|
|
|
|
/* process the decomposition if if there is at one here */
|
|
if((norm->lenNFD|norm->lenNFKD)!=0) {
|
|
/* decompose this one decomposition further, may generate two decompositions */
|
|
decompStoreNewNF(code, norm);
|
|
|
|
/* has this code point been used in previous decompositions? */
|
|
if(HAVE_SEEN(code)) {
|
|
/* use this decomposition to decompose other decompositions further */
|
|
decompSingle.c=code;
|
|
decompSingle.norm=norm;
|
|
enumTrie(decompWithSingleFn, &decompSingle);
|
|
}
|
|
}
|
|
|
|
/* store the data */
|
|
uprv_memcpy(p, norm, sizeof(Norm));
|
|
}
|
|
|
|
extern void
|
|
setQCFlags(uint32_t code, uint8_t qcFlags) {
|
|
createNorm(code)->qcFlags|=qcFlags;
|
|
|
|
/* adjust the minimum code point for quick check no/maybe */
|
|
if(code<0xffff) {
|
|
if((qcFlags&_NORM_QC_NFC) && (uint16_t)code<indexes[_NORM_INDEX_MIN_NFC_NO_MAYBE]) {
|
|
indexes[_NORM_INDEX_MIN_NFC_NO_MAYBE]=(uint16_t)code;
|
|
}
|
|
if((qcFlags&_NORM_QC_NFKC) && (uint16_t)code<indexes[_NORM_INDEX_MIN_NFKC_NO_MAYBE]) {
|
|
indexes[_NORM_INDEX_MIN_NFKC_NO_MAYBE]=(uint16_t)code;
|
|
}
|
|
if((qcFlags&_NORM_QC_NFD) && (uint16_t)code<indexes[_NORM_INDEX_MIN_NFD_NO_MAYBE]) {
|
|
indexes[_NORM_INDEX_MIN_NFD_NO_MAYBE]=(uint16_t)code;
|
|
}
|
|
if((qcFlags&_NORM_QC_NFKD) && (uint16_t)code<indexes[_NORM_INDEX_MIN_NFKD_NO_MAYBE]) {
|
|
indexes[_NORM_INDEX_MIN_NFKD_NO_MAYBE]=(uint16_t)code;
|
|
}
|
|
}
|
|
}
|
|
|
|
extern void
|
|
setCompositionExclusion(uint32_t code) {
|
|
createNorm(code)->combiningFlags|=0x80;
|
|
}
|
|
|
|
static void
|
|
setHangulJamoSpecials() {
|
|
Norm *norm;
|
|
uint16_t *pStage2Block;
|
|
uint32_t c;
|
|
uint16_t i;
|
|
|
|
/*
|
|
* Hangul syllables are algorithmically decomposed into Jamos,
|
|
* and Jamos are algorithmically composed into Hangul syllables.
|
|
* The quick check flags are parsed, except for Hangul.
|
|
*/
|
|
|
|
/* set Jamo L specials */
|
|
for(c=0x1100; c<=0x1112; ++c) {
|
|
norm=createNorm(c);
|
|
norm->specialTag=_NORM_EXTRA_INDEX_TOP+_NORM_EXTRA_JAMO_L;
|
|
norm->combiningFlags=1;
|
|
}
|
|
|
|
/* set Jamo V specials */
|
|
for(c=0x1161; c<=0x1175; ++c) {
|
|
norm=createNorm(c);
|
|
norm->specialTag=_NORM_EXTRA_INDEX_TOP+_NORM_EXTRA_JAMO_V;
|
|
norm->combiningFlags=2;
|
|
}
|
|
|
|
/* set Jamo T specials */
|
|
for(c=0x11a8; c<=0x11c2; ++c) {
|
|
norm=createNorm(c);
|
|
norm->specialTag=_NORM_EXTRA_INDEX_TOP+_NORM_EXTRA_JAMO_T;
|
|
norm->combiningFlags=2;
|
|
}
|
|
|
|
/* set Hangul specials, precompacted */
|
|
norm=(Norm *)utm_alloc(normMem);
|
|
norm->specialTag=_NORM_EXTRA_INDEX_TOP+_NORM_EXTRA_HANGUL;
|
|
norm->qcFlags=_NORM_QC_NFD|_NORM_QC_NFKD;
|
|
|
|
/* set one complete stage 2 block with this Hangul information */
|
|
pStage2Block=(uint16_t *)utm_allocN(stage2Mem, _NORM_STAGE_2_BLOCK_COUNT);
|
|
for(i=0; i<_NORM_STAGE_2_BLOCK_COUNT; ++i) {
|
|
pStage2Block[i]=(uint16_t)(norm-norms);
|
|
}
|
|
|
|
/* set these data for U+ac00..U+d7a3 */
|
|
c=0xac00;
|
|
|
|
/* set a partial stage 2 block before pStage2Block can be repeated */
|
|
if(c&_NORM_STAGE_2_MASK) {
|
|
i=(uint16_t)(createStage2Block(c)+(c&_NORM_STAGE_2_MASK));
|
|
do {
|
|
stage2[i++]=(uint16_t)(norm-norms);
|
|
} while(++c&_NORM_STAGE_2_MASK);
|
|
}
|
|
|
|
/* set full stage 1 blocks to the common stage 2 block */
|
|
while(c<(0xd7a3&~_NORM_STAGE_2_MASK)) {
|
|
stage1[c>>_NORM_TRIE_SHIFT]=(uint16_t)(pStage2Block-stage2);
|
|
c+=_NORM_STAGE_2_BLOCK_COUNT;
|
|
}
|
|
|
|
/* set a partial stage 2 block after the repetition */
|
|
i=createStage2Block(c);
|
|
while(c<=0xd7a3) {
|
|
stage2[i++]=(uint16_t)(norm-norms);
|
|
++c;
|
|
}
|
|
}
|
|
|
|
/* build runtime structures ------------------------------------------------- */
|
|
|
|
/* canonically reorder a UTF-32 string; return { leadCC, trailCC } */
|
|
static uint16_t
|
|
reorderString(uint32_t *s, int32_t length) {
|
|
uint8_t ccs[40];
|
|
uint32_t c;
|
|
int32_t i, j;
|
|
uint8_t cc, prevCC;
|
|
|
|
if(length<=0) {
|
|
return 0;
|
|
}
|
|
|
|
for(i=0; i<length; ++i) {
|
|
/* get the i-th code point and its combining class */
|
|
c=s[i];
|
|
cc=getCCFromCP(c);
|
|
if(cc!=0 && i!=0) {
|
|
/* it is a combining mark, see if it needs to be moved back */
|
|
j=i;
|
|
do {
|
|
prevCC=ccs[j-1];
|
|
if(prevCC<=cc) {
|
|
break; /* found the right place */
|
|
}
|
|
/* move the previous code point here and go back */
|
|
s[j]=s[j-1];
|
|
ccs[j]=prevCC;
|
|
} while(--j!=0);
|
|
s[j]=c;
|
|
ccs[j]=cc;
|
|
} else {
|
|
/* just store the combining class */
|
|
ccs[i]=cc;
|
|
}
|
|
}
|
|
|
|
return (uint16_t)(((uint16_t)ccs[0]<<8)|ccs[length-1]);
|
|
}
|
|
|
|
static UBool combineAndQC[64]={ 0 };
|
|
|
|
/*
|
|
* canonically reorder the up to two decompositions
|
|
* and store the leading and trailing combining classes accordingly
|
|
*/
|
|
static void
|
|
postParseFn(void *context, uint32_t code, Norm *norm) {
|
|
int32_t length;
|
|
|
|
/* canonically order the NFD */
|
|
length=norm->lenNFD;
|
|
if(length>0) {
|
|
norm->canonBothCCs=reorderString(norm->nfd, length);
|
|
}
|
|
|
|
/* canonically reorder the NFKD */
|
|
length=norm->lenNFKD;
|
|
if(length>0) {
|
|
norm->compatBothCCs=reorderString(norm->nfkd, length);
|
|
}
|
|
|
|
/* verify that code has a decomposition if and only if the quick check flags say "no" on NF(K)D */
|
|
if((norm->lenNFD!=0) != ((norm->qcFlags&_NORM_QC_NFD)!=0)) {
|
|
printf("U+%04lx has NFD[%d] but quick check 0x%02x\n", (long)code, norm->lenNFD, norm->qcFlags);
|
|
}
|
|
if(((norm->lenNFD|norm->lenNFKD)!=0) != ((norm->qcFlags&(_NORM_QC_NFD|_NORM_QC_NFKD))!=0)) {
|
|
printf("U+%04lx has NFD[%d] NFKD[%d] but quick check 0x%02x\n", (long)code, norm->lenNFD, norm->lenNFKD, norm->qcFlags);
|
|
}
|
|
|
|
/* ### see which combinations of combiningFlags and qcFlags are used for NFC/NFKC */
|
|
combineAndQC[(norm->qcFlags&0x33)|((norm->combiningFlags&3)<<2)]=1;
|
|
|
|
if(norm->combiningFlags&1) {
|
|
if(norm->udataCC!=0) {
|
|
/* illegal - data-derivable composition exclusion */
|
|
printf("U+%04lx combines forward but udataCC==%u\n", (long)code, norm->udataCC);
|
|
}
|
|
}
|
|
if(norm->combiningFlags&2) {
|
|
if((norm->qcFlags&0x11)==0) {
|
|
printf("U+%04lx combines backward but qcNF?C==0\n", (long)code);
|
|
}
|
|
#if 0
|
|
/* occurs sometimes */
|
|
if(norm->udataCC==0) {
|
|
printf("U+%04lx combines backward but udataCC==0\n", (long)code);
|
|
}
|
|
#endif
|
|
}
|
|
if((norm->combiningFlags&3)==3) {
|
|
printf("U+%04lx combines both ways\n", (long)code);
|
|
}
|
|
}
|
|
|
|
/* ### debug */
|
|
static uint32_t countCCSame=0, countCCTrail=0, countCCTwo=0;
|
|
|
|
static uint32_t
|
|
make32BitNorm(Norm *norm) {
|
|
UChar extra[100];
|
|
const Norm *other;
|
|
uint32_t word;
|
|
int32_t i, length, beforeZero=0, count, start;
|
|
|
|
/*
|
|
* Check for assumptions:
|
|
*
|
|
* Test that if a "true starter" (cc==0 && NF*C_YES) decomposes,
|
|
* then the decomposition also begins with a true starter.
|
|
*/
|
|
if(norm->udataCC==0) {
|
|
/* this is a starter */
|
|
if((norm->qcFlags&_NORM_QC_NFC)==0 && norm->lenNFD>0) {
|
|
/* a "true" NFC starter with a canonical decomposition */
|
|
if( norm->canonBothCCs>=0x100 || /* lead cc!=0 or */
|
|
((other=getNorm(norm->nfd[0]))!=NULL && (other->qcFlags&_NORM_QC_NFC)!=0) /* nfd[0] not NFC_YES */
|
|
) {
|
|
fprintf(stderr,
|
|
"error: true NFC starter canonical decomposition[%u] does not begin\n"
|
|
" with a true NFC starter: U+%04lx U+%04lx%s\n",
|
|
norm->lenNFD, (long)norm->nfd[0], (long)norm->nfd[1],
|
|
norm->lenNFD<=2 ? "" : " ...");
|
|
exit(U_INVALID_TABLE_FILE);
|
|
}
|
|
}
|
|
|
|
if((norm->qcFlags&_NORM_QC_NFKC)==0) {
|
|
if(norm->lenNFKD>0) {
|
|
/* a "true" NFKC starter with a compatibility decomposition */
|
|
if( norm->compatBothCCs>=0x100 || /* lead cc!=0 or */
|
|
((other=getNorm(norm->nfkd[0]))!=NULL && (other->qcFlags&_NORM_QC_NFKC)!=0) /* nfkd[0] not NFC_YES */
|
|
) {
|
|
fprintf(stderr,
|
|
"error: true NFKC starter compatibility decomposition[%u] does not begin\n"
|
|
" with a true NFKC starter: U+%04lx U+%04lx%s\n",
|
|
norm->lenNFKD, (long)norm->nfkd[0], (long)norm->nfkd[1], norm->lenNFKD<=2 ? "" : " ...");
|
|
exit(U_INVALID_TABLE_FILE);
|
|
}
|
|
} else if(norm->lenNFD>0) {
|
|
/* a "true" NFKC starter with only a canonical decomposition */
|
|
if( norm->canonBothCCs>=0x100 || /* lead cc!=0 or */
|
|
((other=getNorm(norm->nfd[0]))!=NULL && (other->qcFlags&_NORM_QC_NFKC)!=0) /* nfd[0] not NFC_YES */
|
|
) {
|
|
fprintf(stderr,
|
|
"error: true NFKC starter canonical decomposition[%u] does not begin\n"
|
|
" with a true NFKC starter: U+%04lx U+%04lx%s\n",
|
|
norm->lenNFD, (long)norm->nfd[0], (long)norm->nfd[1],
|
|
norm->lenNFD<=2 ? "" : " ...");
|
|
exit(U_INVALID_TABLE_FILE);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* reset the 32-bit word and set the quick check flags */
|
|
word=norm->qcFlags;
|
|
|
|
/* set the UnicodeData combining class */
|
|
word|=(uint32_t)norm->udataCC<<_NORM_CC_SHIFT;
|
|
|
|
/* set the combining flag and index */
|
|
if(norm->combiningFlags&3) {
|
|
word|=(uint32_t)(norm->combiningFlags&3)<<6;
|
|
}
|
|
|
|
/* set the combining index value into the extra data */
|
|
if(norm->combiningIndex!=0) {
|
|
extra[0]=norm->combiningIndex;
|
|
beforeZero=1;
|
|
}
|
|
|
|
count=beforeZero;
|
|
|
|
/* write the decompositions */
|
|
if((norm->lenNFD|norm->lenNFKD)!=0) {
|
|
extra[count++]=0; /* set the pieces when available, into extra[beforeZero] */
|
|
|
|
length=norm->lenNFD;
|
|
if(length>0) {
|
|
if(norm->canonBothCCs!=0) {
|
|
extra[beforeZero]|=0x80;
|
|
extra[count++]=norm->canonBothCCs;
|
|
}
|
|
start=count;
|
|
for(i=0; i<length; ++i) {
|
|
UTF_APPEND_CHAR_UNSAFE(extra, count, norm->nfd[i]);
|
|
}
|
|
extra[beforeZero]|=(UChar)(count-start); /* set the decomp length as the number of UTF-16 code units */
|
|
}
|
|
|
|
length=norm->lenNFKD;
|
|
if(length>0) {
|
|
if(norm->compatBothCCs!=0) {
|
|
extra[beforeZero]|=0x8000;
|
|
extra[count++]=norm->compatBothCCs;
|
|
}
|
|
start=count;
|
|
for(i=0; i<length; ++i) {
|
|
UTF_APPEND_CHAR_UNSAFE(extra, count, norm->nfkd[i]);
|
|
}
|
|
extra[beforeZero]|=(UChar)((count-start)<<8); /* set the decomp length as the number of UTF-16 code units */
|
|
}
|
|
}
|
|
|
|
/* allocate and copy the extra data */
|
|
if(count!=0) {
|
|
UChar *p;
|
|
|
|
if(norm->specialTag!=0) {
|
|
fprintf(stderr, "error: gennorm - illegal to have both extra data and a special tag (0x%x)\n", norm->specialTag);
|
|
exit(U_ILLEGAL_ARGUMENT_ERROR);
|
|
}
|
|
|
|
p=(UChar *)utm_allocN(extraMem, count);
|
|
uprv_memcpy(p, extra, count*2);
|
|
|
|
/* set the extra index, offset by beforeZero */
|
|
word|=(uint32_t)(beforeZero+(p-(UChar *)utm_getStart(extraMem)))<<_NORM_EXTRA_SHIFT;
|
|
} else if(norm->specialTag!=0) {
|
|
/* set a special tag instead of an extra index */
|
|
word|=(uint32_t)norm->specialTag<<_NORM_EXTRA_SHIFT;
|
|
}
|
|
|
|
return word;
|
|
}
|
|
|
|
/* turn all Norm structs into corresponding 32-bit norm values */
|
|
static void
|
|
makeAll32() {
|
|
uint16_t i, count;
|
|
|
|
/*
|
|
* allocate and fill the table of 32-bit normalization data
|
|
* leave space for data for the up to 1024 lead surrogates
|
|
*/
|
|
norm32TableTop=(uint16_t)stage2Mem->index;
|
|
norm32Table=(uint32_t *)uprv_malloc((norm32TableTop+1024)*4);
|
|
if(norm32Table==NULL) {
|
|
fprintf(stderr, "error: gennorm - unable to allocate %ld 32-bit words for norm32Table\n",
|
|
(long)(norm32TableTop+1024));
|
|
exit(U_MEMORY_ALLOCATION_ERROR);
|
|
}
|
|
|
|
/* reset all entries */
|
|
uprv_memset(norm32Table, 0, (norm32TableTop+1024)*4);
|
|
|
|
count=0;
|
|
|
|
/* skip the first, all-empty block */
|
|
for(i=_NORM_STAGE_2_BLOCK_COUNT; i<norm32TableTop; ++i) {
|
|
if(stage2[i]!=0) {
|
|
if(0!=(norm32Table[i]=make32BitNorm(norms+stage2[i]))) {
|
|
++count;
|
|
}
|
|
}
|
|
}
|
|
|
|
printf("count of 16-bit extra data: %lu\n", (long)extraMem->index);
|
|
printf("count of (uncompacted) non-zero 32-bit words: %lu\n", (long)count);
|
|
printf("count CC frequencies: same %lu trail %lu two %lu\n",
|
|
(long)countCCSame, (long)countCCTrail, (long)countCCTwo);
|
|
}
|
|
|
|
/*
|
|
* extract all Norm.canonBothCCs into the FCD table
|
|
* set 32-bit values to use the common fold and compact functions
|
|
*/
|
|
static void
|
|
makeFCD() {
|
|
static uint16_t map[0x10000>>_NORM_TRIE_SHIFT];
|
|
Norm *norm;
|
|
uint32_t i, oredValues;
|
|
uint16_t bothCCs, delta;
|
|
|
|
/*
|
|
* allocate and fill the table of 32-bit normalization data
|
|
* leave space for data for the up to 1024 lead surrogates
|
|
*/
|
|
fcdTableTop=(uint16_t)stage2Mem->index;
|
|
fcdTable=(uint32_t *)uprv_malloc((fcdTableTop+1024)*4);
|
|
if(fcdTable==NULL) {
|
|
fprintf(stderr, "error: gennorm - unable to allocate %ld 32-bit words for fcdTable\n",
|
|
(long)(fcdTableTop+1024));
|
|
exit(U_MEMORY_ALLOCATION_ERROR);
|
|
}
|
|
|
|
/* reset all entries */
|
|
uprv_memset(fcdTable, 0, (fcdTableTop+1024)*4);
|
|
|
|
/* compact out the all-zero stage 2 blocks */
|
|
map[0]=0;
|
|
delta=0;
|
|
|
|
/* oredValues detects all-zero stage 2 blocks that will be removed from fcdStage1 */
|
|
oredValues=0;
|
|
|
|
/* skip the first, all-empty block */
|
|
for(i=_NORM_STAGE_2_BLOCK_COUNT; i<fcdTableTop; ++i) {
|
|
if(stage2[i]!=0) {
|
|
norm=norms+stage2[i];
|
|
bothCCs=norm->canonBothCCs;
|
|
if(bothCCs==0) {
|
|
/* if there are no decomposition cc's then use the udataCC twice */
|
|
bothCCs=norm->udataCC;
|
|
bothCCs|=bothCCs<<8;
|
|
}
|
|
oredValues|=fcdTable[i-delta]=bothCCs;
|
|
}
|
|
|
|
if((i&_NORM_STAGE_2_MASK)==_NORM_STAGE_2_MASK) {
|
|
/* at the end of a stage 2 block, check if there are any non-zero entries */
|
|
if(oredValues==0) {
|
|
/* all zero: skip this block */
|
|
delta+=_NORM_STAGE_2_BLOCK_COUNT;
|
|
map[i>>_NORM_TRIE_SHIFT]=(uint16_t)0;
|
|
} else {
|
|
/* keep this block */
|
|
map[i>>_NORM_TRIE_SHIFT]=(uint16_t)((i&~_NORM_STAGE_2_MASK)-delta);
|
|
oredValues=0;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* now adjust stage 1 */
|
|
for(i=0; i<_NORM_STAGE_1_MAX_COUNT; ++i) {
|
|
fcdStage1[i]=map[fcdStage1[i]>>_NORM_TRIE_SHIFT];
|
|
}
|
|
|
|
printf("FCD: omitted %u stage 2 entries in all-zero blocks\n", delta);
|
|
|
|
/* adjust the table top */
|
|
fcdTableTop-=delta;
|
|
}
|
|
|
|
/*
|
|
* Fold the supplementary code point data for one lead surrogate.
|
|
*/
|
|
static uint16_t
|
|
foldLeadSurrogate(uint16_t *parent, uint16_t parentCount,
|
|
uint32_t *stage, uint16_t *pStageCount,
|
|
uint32_t base,
|
|
UBool isNorm32) {
|
|
uint32_t leadNorm32=0;
|
|
uint32_t i, j, s2;
|
|
uint32_t leadSurrogate=0xd7c0+(base>>10);
|
|
|
|
printf("supplementary data for lead surrogate U+%04lx\n", (long)leadSurrogate);
|
|
|
|
/* calculate the 32-bit data word for the lead surrogate */
|
|
for(i=0; i<_NORM_SURROGATE_BLOCK_COUNT; ++i) {
|
|
s2=parent[(base>>_NORM_TRIE_SHIFT)+i];
|
|
if(s2!=0) {
|
|
for(j=0; j<_NORM_STAGE_2_BLOCK_COUNT; ++j) {
|
|
/* basically, or all 32-bit data into the one for the lead surrogate */
|
|
leadNorm32|=stage[s2+j];
|
|
}
|
|
}
|
|
}
|
|
|
|
if(isNorm32) {
|
|
/* turn multi-bit fields into the worst-case value */
|
|
if(leadNorm32&_NORM_CC_MASK) {
|
|
leadNorm32|=_NORM_CC_MASK;
|
|
}
|
|
|
|
/* clean up unnecessarily ored bit fields */
|
|
leadNorm32&=~((uint32_t)0xffffffff<<_NORM_EXTRA_SHIFT);
|
|
|
|
if(leadNorm32==0) {
|
|
/* nothing to do (only composition exclusions?) */
|
|
return 0;
|
|
}
|
|
|
|
/* add the extra surrogate index, offset by the BMP top, for the new stage 1 location */
|
|
leadNorm32|=(
|
|
(uint32_t)_NORM_EXTRA_INDEX_TOP+
|
|
(uint32_t)((parentCount-_NORM_STAGE_1_BMP_COUNT)>>_NORM_SURROGATE_BLOCK_BITS)
|
|
)<<_NORM_EXTRA_SHIFT;
|
|
} else {
|
|
if(leadNorm32==0) {
|
|
/* FCD: nothing to do */
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* For FCD, replace the entire combined value by the surrogate index
|
|
* and make sure that it is not 0 (by not offsetting it by the BMP top,
|
|
* since here we have enough bits for this);
|
|
* lead surrogates are tested at runtime on the character code itself
|
|
* instead on special values of the trie data -
|
|
* this is because 16 bits in the FCD trie data do not allow for anything
|
|
* but the two leading and trailing combining classes of the canonical decomposition.
|
|
*/
|
|
leadNorm32=parentCount>>_NORM_SURROGATE_BLOCK_BITS;
|
|
}
|
|
|
|
/* enter the lead surrogate's data */
|
|
s2=parent[leadSurrogate>>_NORM_TRIE_SHIFT];
|
|
if(s2==0) {
|
|
/* allocate a new stage 2 block in stage (the memory is there from makeAll32()/makeFCD()) */
|
|
s2=parent[leadSurrogate>>_NORM_TRIE_SHIFT]=*pStageCount;
|
|
*pStageCount+=_NORM_STAGE_2_BLOCK_COUNT;
|
|
}
|
|
stage[s2+(leadSurrogate&_NORM_STAGE_2_MASK)]=leadNorm32;
|
|
|
|
/* move the actual stage 1 indexes from the supplementary position to the new one */
|
|
uprv_memmove(parent+parentCount, parent+(base>>_NORM_TRIE_SHIFT), _NORM_SURROGATE_BLOCK_COUNT*2);
|
|
|
|
/* increment stage 1 top */
|
|
return _NORM_SURROGATE_BLOCK_COUNT;
|
|
}
|
|
|
|
/*
|
|
* Fold the normalization data for supplementary code points into
|
|
* a compact area on top of the BMP-part of the trie index,
|
|
* with the lead surrogates indexing this compact area.
|
|
*
|
|
* Use after makeAll32().
|
|
*/
|
|
static uint16_t
|
|
foldSupplementary(uint16_t *parent, uint16_t parentCount,
|
|
uint32_t *stage, uint16_t *pStageCount,
|
|
UBool isNorm32) {
|
|
uint32_t c;
|
|
uint16_t i;
|
|
|
|
/* search for any stage 1 entries for supplementary code points */
|
|
for(c=0x10000; c<0x110000;) {
|
|
i=parent[c>>_NORM_TRIE_SHIFT];
|
|
if(i!=0) {
|
|
/* there is data, treat the full block for a lead surrogate */
|
|
c&=~0x3ff;
|
|
parentCount+=foldLeadSurrogate(parent, parentCount, stage, pStageCount, c, isNorm32);
|
|
c+=0x400;
|
|
} else {
|
|
c+=_NORM_STAGE_2_BLOCK_COUNT;
|
|
}
|
|
}
|
|
|
|
printf("trie index count: BMP %u all Unicode %lu folded %u\n",
|
|
_NORM_STAGE_1_BMP_COUNT, (long)_NORM_STAGE_1_MAX_COUNT, parentCount);
|
|
return parentCount;
|
|
}
|
|
|
|
static uint16_t
|
|
compact(uint16_t *parent, uint16_t parentCount,
|
|
uint32_t *stage, uint16_t stageCount) {
|
|
/*
|
|
* This function is the common implementation for compacting
|
|
* the stage 2 tables of 32-bit values.
|
|
* It is a copy of genprops/store.c's compactStage() adapted for the 32-bit stage 2 tables.
|
|
*/
|
|
static uint16_t map[0x10000>>_NORM_TRIE_SHIFT];
|
|
uint32_t x;
|
|
uint16_t i, start, prevEnd, newStart;
|
|
|
|
map[0]=0;
|
|
newStart=_NORM_STAGE_2_BLOCK_COUNT;
|
|
for(start=newStart; start<stageCount;) {
|
|
prevEnd=(uint16_t)(newStart-1);
|
|
x=stage[start];
|
|
if(x==stage[prevEnd]) {
|
|
/* overlap by at least one */
|
|
for(i=1; i<_NORM_STAGE_2_BLOCK_COUNT && x==stage[start+i] && x==stage[prevEnd-i]; ++i) {}
|
|
|
|
/* overlap by i */
|
|
map[start>>_NORM_TRIE_SHIFT]=(uint16_t)(newStart-i);
|
|
|
|
/* move the non-overlapping indexes to their new positions */
|
|
start+=i;
|
|
for(i=(uint16_t)(_NORM_STAGE_2_BLOCK_COUNT-i); i>0; --i) {
|
|
stage[newStart++]=stage[start++];
|
|
}
|
|
} else if(newStart<start) {
|
|
/* move the indexes to their new positions */
|
|
map[start>>_NORM_TRIE_SHIFT]=newStart;
|
|
for(i=_NORM_STAGE_2_BLOCK_COUNT; i>0; --i) {
|
|
stage[newStart++]=stage[start++];
|
|
}
|
|
} else /* no overlap && newStart==start */ {
|
|
map[start>>_NORM_TRIE_SHIFT]=start;
|
|
newStart+=_NORM_STAGE_2_BLOCK_COUNT;
|
|
start=newStart;
|
|
}
|
|
}
|
|
|
|
/* now adjust the parent table */
|
|
for(i=0; i<parentCount; ++i) {
|
|
parent[i]=map[parent[i]>>_NORM_TRIE_SHIFT];
|
|
}
|
|
|
|
/* we saved some space */
|
|
printf("compacting trie: count of 32-bit words %lu->%lu\n",
|
|
(long)stageCount, (long)newStart);
|
|
return newStart;
|
|
}
|
|
|
|
extern void
|
|
processData() {
|
|
#if 0
|
|
uint16_t i;
|
|
#endif
|
|
|
|
processCombining();
|
|
|
|
/* canonically reorder decompositions and assign combining classes for decompositions */
|
|
enumTrie(postParseFn, NULL);
|
|
|
|
#if 0
|
|
for(i=1; i<64; ++i) {
|
|
if(combineAndQC[i]) {
|
|
printf("combiningFlags==0x%02x qcFlags(NF?C)==0x%02x\n", (i&0xc)>>2, i&0x33);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/* add hangul/jamo specials */
|
|
setHangulJamoSpecials();
|
|
|
|
/* copy stage 1 for the FCD trie */
|
|
uprv_memcpy(fcdStage1, stage1, sizeof(stage1));
|
|
|
|
/* --- finalize data for quick checks & normalization: stage1/norm32Table --- */
|
|
|
|
/* turn the Norm structs (stage2, norms) into 32-bit data words (norm32Table) */
|
|
makeAll32();
|
|
|
|
/* fold supplementary code points into lead surrogates */
|
|
stage1Top=foldSupplementary(stage1, _NORM_STAGE_1_BMP_COUNT, norm32Table, &norm32TableTop, TRUE);
|
|
|
|
/* compact stage 2 */
|
|
norm32TableTop=compact(stage1, stage1Top, norm32Table, norm32TableTop);
|
|
|
|
/* --- finalize data for FCD checks: fcdStage1/fcdTable --- */
|
|
|
|
/* FCD data: take Norm.canonBothCCs and store them in the FCD table */
|
|
makeFCD();
|
|
|
|
/* FCD: fold supplementary code points into lead surrogates */
|
|
fcdStage1Top=foldSupplementary(fcdStage1, _NORM_STAGE_1_BMP_COUNT, fcdTable, &fcdTableTop, FALSE);
|
|
|
|
/* FCD: compact stage 2 */
|
|
fcdTableTop=compact(fcdStage1, fcdStage1Top, fcdTable, fcdTableTop);
|
|
|
|
/* ### debug output */
|
|
#if 0
|
|
printf("number of stage 2 entries: %ld\n", stage2Mem->index);
|
|
printf("size of stage 1 (BMP) & 2 (uncompacted) + extra data: %ld bytes\n", _NORM_STAGE_1_BMP_COUNT*2+stage2Mem->index*4+extraMem->index*2);
|
|
#endif
|
|
printf("combining CPs tops: fwd %u both %u back %u\n", combineFwdTop, combineBothTop, combineBackTop);
|
|
printf("combining table count: %u\n", combiningTableTop);
|
|
}
|
|
|
|
extern void
|
|
generateData(const char *dataDir) {
|
|
UNewDataMemory *pData;
|
|
uint16_t *p16;
|
|
UErrorCode errorCode=U_ZERO_ERROR;
|
|
uint32_t size, dataLength;
|
|
uint16_t i;
|
|
|
|
size=
|
|
_NORM_INDEX_TOP*2+
|
|
stage1Top*2+
|
|
norm32TableTop*4+
|
|
extraMem->index*2+
|
|
combiningTableTop*2+
|
|
fcdStage1Top*2+
|
|
fcdTableTop*2;
|
|
|
|
printf("size of " DATA_NAME "." DATA_TYPE " contents: %lu bytes\n", (long)size);
|
|
|
|
indexes[_NORM_INDEX_COUNT]=_NORM_INDEX_TOP;
|
|
indexes[_NORM_INDEX_TRIE_SHIFT]=_NORM_TRIE_SHIFT;
|
|
indexes[_NORM_INDEX_TRIE_INDEX_COUNT]=stage1Top;
|
|
indexes[_NORM_INDEX_TRIE_DATA_COUNT]=norm32TableTop;
|
|
indexes[_NORM_INDEX_UCHAR_COUNT]=(uint16_t)extraMem->index;
|
|
|
|
indexes[_NORM_INDEX_COMBINE_DATA_COUNT]=combiningTableTop;
|
|
indexes[_NORM_INDEX_COMBINE_FWD_COUNT]=combineFwdTop;
|
|
indexes[_NORM_INDEX_COMBINE_BOTH_COUNT]=(uint16_t)(combineBothTop-combineFwdTop);
|
|
indexes[_NORM_INDEX_COMBINE_BACK_COUNT]=(uint16_t)(combineBackTop-combineBothTop);
|
|
|
|
indexes[_NORM_INDEX_FCD_TRIE_INDEX_COUNT]=fcdStage1Top;
|
|
indexes[_NORM_INDEX_FCD_TRIE_DATA_COUNT]=fcdTableTop;
|
|
|
|
/* adjust the stage 1 indexes to offset stage 2 from the beginning of stage 1 */
|
|
|
|
/* stage1/norm32Table */
|
|
for(i=0; i<stage1Top; ++i) {
|
|
stage1[i]+=stage1Top/2; /* stage 2 is 32-bit indexed */
|
|
}
|
|
|
|
/* fcdStage1/fcdTable */
|
|
for(i=0; i<fcdStage1Top; ++i) {
|
|
fcdStage1[i]+=fcdStage1Top; /* FCD stage 2 is 16-bit indexed */
|
|
}
|
|
|
|
/* reduce the contents of fcdTable from 32-bit values to 16-bit values, in-place (destructive!) */
|
|
p16=(uint16_t *)fcdTable;
|
|
for(i=0; i<fcdTableTop; ++i) {
|
|
p16[i]=(uint16_t)fcdTable[i];
|
|
}
|
|
|
|
/* write the data */
|
|
pData=udata_create(dataDir, DATA_TYPE, DATA_NAME, &dataInfo,
|
|
haveCopyright ? U_COPYRIGHT_STRING : NULL, &errorCode);
|
|
if(U_FAILURE(errorCode)) {
|
|
fprintf(stderr, "gennorm: unable to create the output file, error %d\n", errorCode);
|
|
exit(errorCode);
|
|
}
|
|
|
|
udata_writeBlock(pData, indexes, sizeof(indexes));
|
|
udata_writeBlock(pData, stage1, stage1Top*2);
|
|
udata_writeBlock(pData, norm32Table, norm32TableTop*4);
|
|
udata_writeBlock(pData, utm_getStart(extraMem), extraMem->index*2);
|
|
udata_writeBlock(pData, combiningTable, combiningTableTop*2);
|
|
udata_writeBlock(pData, fcdStage1, fcdStage1Top*2);
|
|
udata_writeBlock(pData, fcdTable, fcdTableTop*2);
|
|
|
|
/* finish up */
|
|
dataLength=udata_finish(pData, &errorCode);
|
|
if(U_FAILURE(errorCode)) {
|
|
fprintf(stderr, "gennorm: error %d writing the output file\n", errorCode);
|
|
exit(errorCode);
|
|
}
|
|
|
|
if(dataLength!=size) {
|
|
fprintf(stderr, "gennorm: data length %lu != calculated size %lu\n",
|
|
(long)dataLength, (long)size);
|
|
exit(U_INTERNAL_PROGRAM_ERROR);
|
|
}
|
|
}
|
|
|
|
extern void
|
|
cleanUpData(void) {
|
|
uprv_free(norm32Table);
|
|
uprv_free(fcdTable);
|
|
|
|
utm_close(stage2Mem);
|
|
utm_close(normMem);
|
|
utm_close(utf32Mem);
|
|
utm_close(extraMem);
|
|
utm_close(combiningTriplesMem);
|
|
}
|
|
|
|
/*
|
|
* Hey, Emacs, please set the following:
|
|
*
|
|
* Local Variables:
|
|
* indent-tabs-mode: nil
|
|
* End:
|
|
*
|
|
*/
|