| /* |
| ******************************************************************************* |
| * |
| * Copyright (C) 1999, International Business Machines |
| * Corporation and others. All Rights Reserved. |
| * |
| ******************************************************************************* |
| * file name: gennames.c |
| * encoding: US-ASCII |
| * tab size: 8 (not used) |
| * indentation:4 |
| * |
| * created on: 1999sep30 |
| * created by: Markus W. Scherer |
| * |
| * This program reads the Unicode character database text file, |
| * parses it, and extracts the character code, |
| * the "modern" character name, and optionally the |
| * Unicode 1.0 character name. |
| * It then tokenizes and compresses the names and builds |
| * compact binary tables for random-access lookup |
| * in a u_charName() API function. |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include "unicode/utypes.h" |
| #include "cmemory.h" |
| #include "cstring.h" |
| #include "unicode/udata.h" |
| #include "unewdata.h" |
| #include "uoptions.h" |
| #include "uparse.h" |
| |
| #define STRING_STORE_SIZE 1000000 |
| #define GROUP_STORE_SIZE 5000 |
| |
| #define GROUP_SHIFT 5 |
| #define LINES_PER_GROUP (1UL<<GROUP_SHIFT) |
| #define GROUP_MASK (LINES_PER_GROUP-1) |
| |
| #define MAX_LINE_COUNT 50000 |
| #define MAX_WORD_COUNT 20000 |
| #define MAX_GROUP_COUNT 5000 |
| |
| #define DATA_NAME "unames" |
| #define DATA_TYPE "dat" |
| #define VERSION_STRING "unam" |
| #define NAME_SEPARATOR_CHAR ';' |
| |
| /* UDataInfo cf. udata.h */ |
| static UDataInfo dataInfo={ |
| sizeof(UDataInfo), |
| 0, |
| |
| U_IS_BIG_ENDIAN, |
| U_CHARSET_FAMILY, |
| sizeof(UChar), |
| 0, |
| |
| 0x75, 0x6e, 0x61, 0x6d, /* dataFormat="unam" */ |
| 1, 0, 0, 0, /* formatVersion */ |
| 3, 0, 0, 0 /* dataVersion */ |
| }; |
| |
| static UBool beVerbose=FALSE, beQuiet=FALSE, haveCopyright=TRUE; |
| |
| static uint8_t stringStore[STRING_STORE_SIZE], |
| groupStore[GROUP_STORE_SIZE], |
| lineLengths[LINES_PER_GROUP]; |
| |
| static uint32_t lineTop=0, wordBottom=STRING_STORE_SIZE, lineLengthsTop; |
| |
| typedef struct { |
| uint32_t code; |
| int16_t length; |
| uint8_t *s; |
| } Line; |
| |
| typedef struct { |
| int32_t weight; /* -(cost for token) + (number of occurences) * (length-1) */ |
| int16_t count; |
| int16_t length; |
| uint8_t *s; |
| } Word; |
| |
| static Line lines[MAX_LINE_COUNT]; |
| static Word words[MAX_WORD_COUNT]; |
| |
| static uint32_t lineCount=0, wordCount=0, groupCount=0; |
| |
| static int16_t leadByteCount; |
| |
| #define LEADBYTE_LIMIT 16 |
| |
| static int16_t tokens[LEADBYTE_LIMIT*256]; |
| static uint32_t tokenCount; |
| |
| /* prototypes --------------------------------------------------------------- */ |
| |
| static void |
| init(); |
| |
| static void |
| parseDB(const char *filename, UBool store10Names); |
| |
| static void |
| parseName(char *name, int16_t length); |
| |
| static int16_t |
| getField(char *line, int16_t start, int16_t limit); |
| |
| static int16_t |
| skipNoise(char *line, int16_t start, int16_t limit); |
| |
| static int16_t |
| getWord(char *line, int16_t start, int16_t limit); |
| |
| static void |
| compress(); |
| |
| static void |
| compressLines(); |
| |
| static int16_t |
| compressLine(uint8_t *s, int16_t length, int16_t *pGroupTop); |
| |
| static int |
| compareWords(const void *word1, const void *word2); |
| |
| static void |
| generateData(const char *dataDir); |
| |
| static uint32_t |
| generateAlgorithmicData(UNewDataMemory *pData); |
| |
| static int16_t |
| findToken(uint8_t *s, int16_t length); |
| |
| static Word * |
| findWord(char *s, int16_t length); |
| |
| static Word * |
| addWord(char *s, int16_t length); |
| |
| static void |
| countWord(Word *word); |
| |
| static void |
| addLine(uint32_t code, char *name1, int16_t name1Length, char *name2, int16_t name2Length); |
| |
| static void |
| addGroup(uint32_t groupMSB, uint8_t *strings, int16_t length); |
| |
| static uint32_t |
| addToken(uint8_t *s, int16_t length); |
| |
| static void |
| appendLineLength(int16_t length); |
| |
| static void |
| appendLineLengthNibble(uint8_t nibble); |
| |
| static uint8_t * |
| allocLine(uint32_t length); |
| |
| static uint8_t * |
| allocWord(uint32_t length); |
| |
| /* -------------------------------------------------------------------------- */ |
| |
| /* ### this must become public in putil.c */ |
| static void |
| __versionFromString(UVersionInfo versionArray, const char *versionString) { |
| char *end; |
| uint16_t part=0; |
| |
| if(versionArray==NULL) { |
| return; |
| } |
| |
| if(versionString!=NULL) { |
| for(;;) { |
| versionArray[part]=(uint8_t)uprv_strtoul(versionString, &end, 10); |
| if(end==versionString || ++part==U_MAX_VERSION_LENGTH || *end!=U_VERSION_DELIMITER) { |
| break; |
| } |
| versionString=end+1; |
| } |
| } |
| |
| while(part<U_MAX_VERSION_LENGTH) { |
| versionArray[part++]=0; |
| } |
| } |
| |
| static UOption options[]={ |
| UOPTION_HELP_H, |
| UOPTION_HELP_QUESTION_MARK, |
| UOPTION_VERBOSE, |
| UOPTION_QUIET, |
| UOPTION_COPYRIGHT, |
| UOPTION_DESTDIR, |
| UOPTION_SOURCEDIR, |
| { "unicode", NULL, NULL, NULL, 'u', UOPT_REQUIRES_ARG, 0 }, |
| { "unicode1names", NULL, NULL, NULL, '1', UOPT_NO_ARG, 0 } |
| }; |
| |
| extern int |
| main(int argc, const char *argv[]) { |
| UVersionInfo version; |
| UBool store10Names=FALSE; |
| |
| /* preset then read command line options */ |
| options[5].value=u_getDataDirectory(); |
| options[6].value=""; |
| options[7].value="3.0.0"; |
| argc=u_parseArgs(argc, argv, sizeof(options)/sizeof(options[0]), options); |
| |
| /* error handling, printing usage message */ |
| if(argc<0) { |
| fprintf(stderr, |
| "error in command line argument \"%s\"\n", |
| argv[-argc]); |
| } else if(argc<2) { |
| argc=-1; |
| } |
| if(argc<0 || options[0].doesOccur || options[1].doesOccur) { |
| fprintf(stderr, |
| "usage: %s [-1[+|-]] [-v[+|-]] [-c[+|-]] filename\n" |
| "\tread the UnicodeData.txt file and \n" |
| "\tcreate a binary file " DATA_NAME "." DATA_TYPE " with the character names\n" |
| "\t\tfilename absolute path/filename for the\n" |
| "\t\t\tUnicode database text file (default: standard input)\n" |
| "\toptions:\n" |
| "\t\t-h or -? or --help this usage text\n" |
| "\t\t-v or --verbose verbose output\n" |
| "\t\t-q or --quiet no output\n" |
| "\t\t-c or --copyright include a copyright notice\n" |
| "\t\t-d or --destdir destination directory, followed by the path\n" |
| "\t\t-s or --sourcedir source directory, followed by the path\n" |
| "\t\t-u or --unicode Unicode version, followed by the version like 3.0.0\n" |
| "\t\t-1 or --unicode1names store Unicode 1.0 character names\n", |
| argv[0]); |
| return argc<0 ? U_ILLEGAL_ARGUMENT_ERROR : U_ZERO_ERROR; |
| } |
| |
| /* get the options values */ |
| beVerbose=options[2].doesOccur; |
| beQuiet=options[3].doesOccur; |
| haveCopyright=options[4].doesOccur; |
| store10Names=options[8].doesOccur; |
| |
| /* set the Unicode version */ |
| __versionFromString(version, options[7].value); |
| uprv_memcpy(dataInfo.dataVersion, version, 4); |
| |
| init(); |
| parseDB(argc>=2 ? argv[1] : "-", store10Names); |
| compress(); |
| generateData(options[5].value); |
| |
| return 0; |
| } |
| |
| static void |
| init() { |
| int i; |
| |
| for(i=0; i<256; ++i) { |
| tokens[i]=0; |
| } |
| } |
| |
| /* parsing ------------------------------------------------------------------ */ |
| |
| static void |
| lineFn(void *context, |
| char *fields[][2], int32_t fieldCount, |
| UErrorCode *pErrorCode) { |
| uint32_t code=0; |
| char *name1Start, *name2Start; |
| int16_t name1Length, name2Length; |
| |
| /* get the character code */ |
| code=uprv_strtoul(fields[0][0], NULL, 16); |
| |
| /* get the character name */ |
| name1Start=fields[1][0]; |
| if(fields[1][0][0]!='<') { |
| name1Length=fields[1][1]-name1Start; |
| } else { |
| /* do not store pseudo-names in <> brackets */ |
| name1Length=0; |
| } |
| |
| /* store 1.0 names */ |
| /* get the second character name, the one from Unicode 1.0 */ |
| /* do not store pseudo-names in <> brackets */ |
| name2Start=fields[10][0]; |
| if(*(UBool *)context && fields[10][0][0]!='<') { |
| name2Length=fields[10][1]-name2Start; |
| } else { |
| name2Length=0; |
| } |
| |
| if(name1Length+name2Length>0) { |
| /* printf("%lx:%.*s(%.*s)\n", code, name1Length, line+name1Start, name2Length, line+name2Start); */ |
| |
| parseName(name1Start, name1Length); |
| parseName(name2Start, name2Length); |
| |
| addLine(code, name1Start, name1Length, name2Start, name2Length); |
| } |
| } |
| |
| static void |
| parseDB(const char *filename, UBool store10Names) { |
| char *fields[11][2]; |
| UErrorCode errorCode=U_ZERO_ERROR; |
| |
| /* parsing the 11 fields 0..10 is enough for gennames */ |
| u_parseDelimitedFile(filename, ';', fields, 11, lineFn, &store10Names, &errorCode); |
| if(U_FAILURE(errorCode)) { |
| exit(errorCode); |
| } |
| |
| if(!beQuiet) { |
| printf("size of all names in the database: %lu\n", lineTop); |
| printf("number of named Unicode characters: %lu\n", lineCount); |
| printf("number of words in the dictionary from these names: %lu\n", wordCount); |
| } |
| } |
| |
| static void |
| parseName(char *name, int16_t length) { |
| int16_t start=0, limit, wordLength/*, prevStart=-1*/; |
| Word *word; |
| |
| while(start<length) { |
| /* skip any "noise" characters */ |
| limit=skipNoise(name, start, length); |
| if(start<limit) { |
| /*prevStart=-1;*/ |
| start=limit; |
| } |
| if(start==length) { |
| break; |
| } |
| |
| /* get a word and add it if it is longer than 1 */ |
| limit=getWord(name, start, length); |
| wordLength=limit-start; |
| if(wordLength>1) { |
| word=findWord(name+start, wordLength); |
| if(word==NULL) { |
| word=addWord(name+start, wordLength); |
| } |
| countWord(word); |
| } |
| |
| #if 0 |
| /* |
| * if there was a word before this |
| * (with no noise in between), then add the pair of words, too |
| */ |
| if(prevStart!=-1) { |
| wordLength=limit-prevStart; |
| word=findWord(name+prevStart, wordLength); |
| if(word==NULL) { |
| word=addWord(name+prevStart, wordLength); |
| } |
| countWord(word); |
| } |
| #endif |
| |
| /*prevStart=start;*/ |
| start=limit; |
| } |
| } |
| |
| static int16_t |
| getField(char *line, int16_t start, int16_t limit) { |
| while(start<limit && line[start]!=';') { |
| ++start; |
| } |
| return start; |
| } |
| |
| static int16_t |
| skipNoise(char *line, int16_t start, int16_t limit) { |
| char c; |
| |
| /* skip anything that is not part of a word in this sense */ |
| while(start<limit && !('A'<=(c=line[start]) && c<='Z' || '0'<=c && c<='9')) { |
| ++start; |
| } |
| |
| return start; |
| } |
| |
| static int16_t |
| getWord(char *line, int16_t start, int16_t limit) { |
| char c; |
| |
| /* a unicode character name word consists of A-Z0-9 */ |
| while(start<limit && ('A'<=(c=line[start]) && c<='Z' || '0'<=c && c<='9')) { |
| ++start; |
| } |
| |
| /* include a following space or dash */ |
| if(start<limit && (c==' ' || c=='-')) { |
| ++start; |
| } |
| |
| return start; |
| } |
| |
| /* compressing -------------------------------------------------------------- */ |
| |
| static void |
| compress() { |
| uint32_t i, letterCount; |
| int16_t wordNumber; |
| |
| /* sort the words in reverse order by weight */ |
| qsort(words, wordCount, sizeof(Word), compareWords); |
| |
| /* remove the words that do not save anything */ |
| while(wordCount>0 && words[wordCount-1].weight<1) { |
| --wordCount; |
| } |
| |
| /* count the letters in the token range */ |
| letterCount=0; |
| for(i=LEADBYTE_LIMIT; i<256; ++i) { |
| if(tokens[i]==-1) { |
| ++letterCount; |
| } |
| } |
| if(!beQuiet) { |
| printf("number of letters used in the names: %d\n", letterCount); |
| } |
| |
| /* do we need double-byte tokens? */ |
| if(wordCount+letterCount<=256) { |
| /* no, single-byte tokens are enough */ |
| leadByteCount=0; |
| for(i=0, wordNumber=0; wordNumber<(int16_t)wordCount; ++i) { |
| if(tokens[i]!=-1) { |
| tokens[i]=wordNumber; |
| if(beVerbose) { |
| printf("tokens[0x%03x]: word%8ld \"%.*s\"\n", |
| i, words[wordNumber].weight, |
| words[wordNumber].length, words[wordNumber].s); |
| } |
| ++wordNumber; |
| } |
| } |
| tokenCount=i; |
| } else { |
| /* |
| * The tokens that need two token bytes |
| * get their weight reduced by their count |
| * because they save less. |
| */ |
| tokenCount=256-letterCount; |
| for(i=tokenCount; i<wordCount; ++i) { |
| words[i].weight-=words[i].count; |
| } |
| |
| /* sort these words in reverse order by weight */ |
| qsort(words+tokenCount, wordCount-tokenCount, sizeof(Word), compareWords); |
| |
| /* remove the words that do not save anything */ |
| while(wordCount>0 && words[wordCount-1].weight<1) { |
| --wordCount; |
| } |
| |
| /* how many tokens and lead bytes do we have now? */ |
| tokenCount=wordCount+letterCount+(LEADBYTE_LIMIT-1); |
| leadByteCount=(int16_t)(tokenCount>>8); |
| if(leadByteCount<LEADBYTE_LIMIT) { |
| /* adjust for the real number of lead bytes */ |
| tokenCount-=(LEADBYTE_LIMIT-1)-leadByteCount; |
| } else { |
| /* limit the number of lead bytes */ |
| leadByteCount=LEADBYTE_LIMIT-1; |
| tokenCount=LEADBYTE_LIMIT*256; |
| wordCount=tokenCount-letterCount-(LEADBYTE_LIMIT-1); |
| } |
| |
| /* set token 0 to word 0 */ |
| tokens[0]=0; |
| if(beVerbose) { |
| printf("tokens[0x000]: word%8ld \"%.*s\"\n", |
| words[0].weight, |
| words[0].length, words[0].s); |
| } |
| wordNumber=1; |
| |
| /* set the lead byte tokens */ |
| for(i=1; (int16_t)i<=leadByteCount; ++i) { |
| tokens[i]=-2; |
| } |
| |
| /* set the tokens */ |
| for(; i<256; ++i) { |
| if(tokens[i]!=-1) { |
| tokens[i]=wordNumber; |
| if(beVerbose) { |
| printf("tokens[0x%03x]: word%8ld \"%.*s\"\n", |
| i, words[wordNumber].weight, |
| words[wordNumber].length, words[wordNumber].s); |
| } |
| ++wordNumber; |
| } |
| } |
| |
| /* continue above 255 where there are no letters */ |
| for(; i<tokenCount; ++i) { |
| tokens[i]=wordNumber; |
| if(beVerbose) { |
| printf("tokens[0x%03x]: word%8ld \"%.*s\"\n", |
| i, words[wordNumber].weight, |
| words[wordNumber].length, words[wordNumber].s); |
| } |
| ++wordNumber; |
| } |
| } |
| |
| if(!beQuiet) { |
| printf("number of lead bytes: %d\n", leadByteCount); |
| printf("number of single-byte tokens: %lu\n", 256-letterCount-leadByteCount); |
| printf("number of tokens: %lu\n", tokenCount); |
| } |
| |
| compressLines(); |
| } |
| |
| static void |
| compressLines() { |
| Line *line; |
| uint32_t i=0, inLine, outLine=-1, |
| groupMSB=0xffff, lineCount2; |
| int16_t groupTop=0; |
| |
| /* store the groups like lines, reusing the lines' memory */ |
| lineTop=0; |
| lineCount2=lineCount; |
| lineCount=0; |
| |
| /* loop over all lines */ |
| while(i<lineCount2) { |
| line=lines+i++; |
| inLine=line->code; |
| |
| /* segment the lines to groups of 32 */ |
| if(inLine>>GROUP_SHIFT!=groupMSB) { |
| /* finish the current group with empty lines */ |
| while((++outLine&GROUP_MASK)!=0) { |
| appendLineLength(0); |
| } |
| |
| /* store the group like a line */ |
| if(groupTop>0) { |
| if(groupTop>GROUP_STORE_SIZE) { |
| fprintf(stderr, "gennames: group store overflow\n"); |
| exit(U_BUFFER_OVERFLOW_ERROR); |
| } |
| addGroup(groupMSB, groupStore, groupTop); |
| if(lineTop>(uint32_t)(line->s-stringStore)) { |
| fprintf(stderr, "gennames: group store runs into string store\n"); |
| exit(U_INTERNAL_PROGRAM_ERROR); |
| } |
| } |
| |
| /* start the new group */ |
| lineLengthsTop=0; |
| groupTop=0; |
| groupMSB=inLine>>GROUP_SHIFT; |
| outLine=(inLine&~GROUP_MASK)-1; |
| } |
| |
| /* write empty lines between the previous line in the group and this one */ |
| while(++outLine<inLine) { |
| appendLineLength(0); |
| } |
| |
| /* write characters and tokens for this line */ |
| appendLineLength(compressLine(line->s, line->length, &groupTop)); |
| } |
| |
| if(!beQuiet) { |
| printf("number of groups: %lu\n", lineCount); |
| } |
| } |
| |
| static int16_t |
| compressLine(uint8_t *s, int16_t length, int16_t *pGroupTop) { |
| int16_t start, limit, token, groupTop=*pGroupTop; |
| |
| start=0; |
| do { |
| /* write any "noise" characters */ |
| limit=skipNoise((char *)s, start, length); |
| while(start<limit) { |
| groupStore[groupTop++]=s[start++]; |
| } |
| |
| if(start==length) { |
| break; |
| } |
| |
| /* write a word, as token or directly */ |
| limit=getWord((char *)s, start, length); |
| if(limit-start==1) { |
| groupStore[groupTop++]=s[start++]; |
| } else { |
| token=findToken(s+start, (int16_t)(limit-start)); |
| if(token!=-1) { |
| if(token>0xff) { |
| groupStore[groupTop++]=(uint8_t)(token>>8); |
| } |
| groupStore[groupTop++]=(uint8_t)token; |
| start=limit; |
| } else { |
| while(start<limit) { |
| groupStore[groupTop++]=s[start++]; |
| } |
| } |
| } |
| } while(start<length); |
| |
| length=groupTop-*pGroupTop; |
| *pGroupTop=groupTop; |
| return length; |
| } |
| |
| static int |
| compareWords(const void *word1, const void *word2) { |
| /* reverse sort by word weight */ |
| return ((Word *)word2)->weight-((Word *)word1)->weight; |
| } |
| |
| /* generate output data ----------------------------------------------------- */ |
| |
| static void |
| generateData(const char *dataDir) { |
| UNewDataMemory *pData; |
| UErrorCode errorCode=U_ZERO_ERROR; |
| uint16_t groupWords[3]; |
| uint32_t i, groupTop=lineTop, offset, size, |
| tokenStringOffset, groupsOffset, groupStringOffset, algNamesOffset; |
| long dataLength; |
| int16_t token; |
| |
| pData=udata_create(dataDir, DATA_TYPE, DATA_NAME, &dataInfo, |
| haveCopyright ? U_COPYRIGHT_STRING : NULL, &errorCode); |
| if(U_FAILURE(errorCode)) { |
| fprintf(stderr, "gennames: unable to create data memory, error %d\n", errorCode); |
| exit(errorCode); |
| } |
| |
| /* first, see how much space we need, and prepare the token strings */ |
| for(i=0; i<tokenCount; ++i) { |
| token=tokens[i]; |
| if(token!=-1 && token!=-2) { |
| tokens[i]=(int16_t)(addToken(words[token].s, words[token].length)-groupTop); |
| } |
| } |
| |
| /* |
| * Calculate the total size in bytes of the data including: |
| * - the offset to the token strings, uint32_t (4) |
| * - the offset to the group table, uint32_t (4) |
| * - the offset to the group strings, uint32_t (4) |
| * - the offset to the algorithmic names, uint32_t (4) |
| * |
| * - the number of tokens, uint16_t (2) |
| * - the token table, uint16_t[tokenCount] (2*tokenCount) |
| * |
| * - the token strings, each zero-terminated (tokenSize=(lineTop-groupTop)), 2-padded |
| * |
| * - the number of groups, uint16_t (2) |
| * - the group table, { uint16_t groupMSB, uint16_t offsetHigh, uint16_t offsetLow }[6*groupCount] |
| * |
| * - the group strings (groupTop), 2-padded |
| * |
| * - the size of the data for the algorithmic names |
| */ |
| tokenStringOffset=4+4+4+4+2+2*tokenCount; |
| groupsOffset=tokenStringOffset+(lineTop-groupTop+1)&~1; |
| groupStringOffset=groupsOffset+2+6*lineCount; |
| algNamesOffset=(groupStringOffset+groupTop+3)&~3; |
| |
| offset=generateAlgorithmicData(NULL); |
| size=algNamesOffset+offset; |
| |
| if(!beQuiet) { |
| printf("size of the Unicode Names data:\n" |
| "total data length %lu, token strings %lu, compressed strings %lu, algorithmic names %lu\n", |
| size, (lineTop-groupTop), groupTop, offset); |
| } |
| |
| /* write the data to the file */ |
| /* offsets */ |
| udata_write32(pData, tokenStringOffset); |
| udata_write32(pData, groupsOffset); |
| udata_write32(pData, groupStringOffset); |
| udata_write32(pData, algNamesOffset); |
| |
| /* token table */ |
| udata_write16(pData, (uint16_t)tokenCount); |
| udata_writeBlock(pData, tokens, 2*tokenCount); |
| |
| /* token strings */ |
| udata_writeBlock(pData, stringStore+groupTop, lineTop-groupTop); |
| if((lineTop-groupTop)&1) { |
| /* 2-padding */ |
| udata_writePadding(pData, 1); |
| } |
| |
| /* group table */ |
| udata_write16(pData, (uint16_t)lineCount); |
| for(i=0; i<lineCount; ++i) { |
| /* groupMSB */ |
| groupWords[0]=(uint16_t)lines[i].code; |
| |
| /* offset */ |
| offset=lines[i].s-stringStore; |
| groupWords[1]=(uint16_t)(offset>>16); |
| groupWords[2]=(uint16_t)(offset); |
| udata_writeBlock(pData, groupWords, 6); |
| } |
| |
| /* group strings */ |
| udata_writeBlock(pData, stringStore, groupTop); |
| |
| /* 4-align the algorithmic names data */ |
| udata_writePadding(pData, algNamesOffset-(groupStringOffset+groupTop)); |
| |
| generateAlgorithmicData(pData); |
| |
| /* finish up */ |
| dataLength=udata_finish(pData, &errorCode); |
| if(U_FAILURE(errorCode)) { |
| fprintf(stderr, "gennames: error %d writing the output file\n", errorCode); |
| exit(errorCode); |
| } |
| |
| if(dataLength!=(long)size) { |
| fprintf(stderr, "gennames: data length %ld != calculated size %lu\n", dataLength, size); |
| exit(U_INTERNAL_PROGRAM_ERROR); |
| } |
| } |
| |
| /* the structure for algorithmic names needs to be 4-aligned */ |
| typedef struct AlgorithmicRange { |
| uint32_t rangeStart, rangeEnd; |
| uint8_t algorithmType, algorithmVariant; |
| uint16_t rangeSize; |
| } AlgorithmicRange; |
| |
| static uint32_t |
| generateAlgorithmicData(UNewDataMemory *pData) { |
| static char prefix[] = "CJK UNIFIED IDEOGRAPH-"; |
| # define PREFIX_LENGTH 23 |
| # define PREFIX_LENGTH_4 24 |
| |
| static AlgorithmicRange cjkExtA={ |
| 0x3400, 0x4db5, |
| 0, 4, |
| sizeof(AlgorithmicRange)+PREFIX_LENGTH_4 |
| }; |
| static AlgorithmicRange cjk={ |
| 0x4e00, 0x9fa5, |
| 0, 4, |
| sizeof(AlgorithmicRange)+PREFIX_LENGTH_4 |
| }; |
| |
| static char jamo[]= |
| "HANGUL SYLLABLE \0" |
| |
| "G\0GG\0N\0D\0DD\0R\0M\0B\0BB\0" |
| "S\0SS\0\0J\0JJ\0C\0K\0T\0P\0H\0" |
| |
| "A\0AE\0YA\0YAE\0EO\0E\0YEO\0YE\0O\0" |
| "WA\0WAE\0OE\0YO\0U\0WEO\0WE\0WI\0" |
| "YU\0EU\0YI\0I\0" |
| |
| "\0G\0GG\0GS\0N\0NJ\0NH\0D\0L\0LG\0LM\0" |
| "LB\0LS\0LT\0LP\0LH\0M\0B\0BS\0" |
| "S\0SS\0NG\0J\0C\0K\0T\0P\0H" |
| ; |
| |
| static AlgorithmicRange hangul={ |
| 0xac00, 0xd7a3, |
| 1, 3, |
| sizeof(AlgorithmicRange)+6+sizeof(jamo) |
| }; |
| |
| /* modulo factors, maximum 8 */ |
| /* 3 factors: 19, 21, 28, most-to-least-significant */ |
| static uint16_t hangulFactors[3]={ |
| 19, 21, 28 |
| }; |
| |
| uint32_t size; |
| |
| size=0; |
| |
| /* number of ranges of algorithmic names */ |
| if(pData!=NULL) { |
| udata_write32(pData, 3); |
| } else { |
| size+=4; |
| } |
| |
| /* |
| * each range: |
| * uint32_t rangeStart |
| * uint32_t rangeEnd |
| * uint8_t algorithmType |
| * uint8_t algorithmVariant |
| * uint16_t size of range data |
| * uint8_t[size] data |
| */ |
| |
| /* range 0: cjk extension a */ |
| if(pData!=NULL) { |
| udata_writeBlock(pData, &cjkExtA, sizeof(AlgorithmicRange)); |
| udata_writeString(pData, prefix, PREFIX_LENGTH); |
| if(PREFIX_LENGTH<PREFIX_LENGTH_4) { |
| udata_writePadding(pData, PREFIX_LENGTH_4-PREFIX_LENGTH); |
| } |
| } else { |
| size+=sizeof(AlgorithmicRange)+PREFIX_LENGTH_4; |
| } |
| |
| /* range 1: cjk */ |
| if(pData!=NULL) { |
| udata_writeBlock(pData, &cjk, sizeof(AlgorithmicRange)); |
| udata_writeString(pData, prefix, PREFIX_LENGTH); |
| if(PREFIX_LENGTH<PREFIX_LENGTH_4) { |
| udata_writePadding(pData, PREFIX_LENGTH_4-PREFIX_LENGTH); |
| } |
| } else { |
| size+=sizeof(AlgorithmicRange)+PREFIX_LENGTH_4; |
| } |
| |
| /* range 2: hangul syllables */ |
| if(pData!=NULL) { |
| udata_writeBlock(pData, &hangul, sizeof(AlgorithmicRange)); |
| udata_writeBlock(pData, hangulFactors, 6); |
| udata_writeString(pData, jamo, sizeof(jamo)); |
| } else { |
| size+=sizeof(AlgorithmicRange)+6+sizeof(jamo); |
| } |
| |
| return size; |
| } |
| |
| /* helpers ------------------------------------------------------------------ */ |
| |
| static int16_t |
| findToken(uint8_t *s, int16_t length) { |
| int16_t i, token; |
| |
| for(i=0; i<(int16_t)tokenCount; ++i) { |
| token=tokens[i]; |
| if(token!=-1 && length==words[token].length && 0==uprv_memcmp(s, words[token].s, length)) { |
| return i; |
| } |
| } |
| |
| return -1; |
| } |
| |
| static Word * |
| findWord(char *s, int16_t length) { |
| uint32_t i; |
| |
| for(i=0; i<wordCount; ++i) { |
| if(length==words[i].length && 0==uprv_memcmp(s, words[i].s, length)) { |
| return words+i; |
| } |
| } |
| |
| return NULL; |
| } |
| |
| static Word * |
| addWord(char *s, int16_t length) { |
| uint8_t *stringStart; |
| Word *word; |
| |
| if(wordCount==MAX_WORD_COUNT) { |
| fprintf(stderr, "gennames: too many words\n"); |
| exit(U_BUFFER_OVERFLOW_ERROR); |
| } |
| |
| stringStart=allocWord(length); |
| uprv_memcpy(stringStart, s, length); |
| |
| word=words+wordCount; |
| |
| /* |
| * Initialize the weight with the costs for this token: |
| * a zero-terminated string and a 16-bit offset. |
| */ |
| word->weight=-(length+1+2); |
| word->count=0; |
| word->length=length; |
| word->s=stringStart; |
| |
| ++wordCount; |
| |
| return word; |
| } |
| |
| static void |
| countWord(Word *word) { |
| /* add to the weight the savings: the length of the word minus 1 byte for the token */ |
| word->weight+=word->length-1; |
| ++word->count; |
| } |
| |
| static void |
| addLine(uint32_t code, char *name1, int16_t name1Length, char *name2, int16_t name2Length) { |
| uint8_t *stringStart; |
| Line *line; |
| int16_t length; |
| |
| if(lineCount==MAX_LINE_COUNT) { |
| fprintf(stderr, "gennames: too many lines\n"); |
| exit(U_BUFFER_OVERFLOW_ERROR); |
| } |
| |
| length=name1Length; |
| if(name2Length>0) { |
| length+=1+name2Length; |
| } |
| |
| stringStart=allocLine(length); |
| if(name1Length>0) { |
| uprv_memcpy(stringStart, name1, name1Length); |
| } |
| if(name2Length>0) { |
| stringStart[name1Length]=NAME_SEPARATOR_CHAR; |
| uprv_memcpy(stringStart+name1Length+1, name2, name2Length); |
| } |
| |
| line=lines+lineCount; |
| |
| line->code=code; |
| line->length=length; |
| line->s=stringStart; |
| |
| ++lineCount; |
| |
| /* prevent a character value that is actually in a name from becoming a token */ |
| while(length>0) { |
| tokens[stringStart[--length]]=-1; |
| } |
| } |
| |
| static void |
| addGroup(uint32_t groupMSB, uint8_t *strings, int16_t length) { |
| uint8_t *stringStart; |
| Line *line; |
| |
| if(lineCount==MAX_LINE_COUNT) { |
| fprintf(stderr, "gennames: too many groups\n"); |
| exit(U_BUFFER_OVERFLOW_ERROR); |
| } |
| |
| /* store the line lengths first, then the strings */ |
| lineLengthsTop=(lineLengthsTop+1)/2; |
| stringStart=allocLine(lineLengthsTop+length); |
| uprv_memcpy(stringStart, lineLengths, lineLengthsTop); |
| uprv_memcpy(stringStart+lineLengthsTop, strings, length); |
| |
| line=lines+lineCount; |
| |
| line->code=groupMSB; |
| line->length=length; |
| line->s=stringStart; |
| |
| ++lineCount; |
| } |
| |
| static uint32_t |
| addToken(uint8_t *s, int16_t length) { |
| uint8_t *stringStart; |
| |
| stringStart=allocLine(length+1); |
| uprv_memcpy(stringStart, s, length); |
| stringStart[length]=0; |
| |
| return stringStart-stringStore; |
| } |
| |
| static void |
| appendLineLength(int16_t length) { |
| if(length>=76) { |
| fprintf(stderr, "gennames: compressed line too long\n"); |
| exit(U_BUFFER_OVERFLOW_ERROR); |
| } |
| if(length>=12) { |
| length-=12; |
| appendLineLengthNibble((uint8_t)((length>>4)|12)); |
| } |
| appendLineLengthNibble((uint8_t)length); |
| } |
| |
| static void |
| appendLineLengthNibble(uint8_t nibble) { |
| if((lineLengthsTop&1)==0) { |
| lineLengths[lineLengthsTop/2]=nibble<<4; |
| } else { |
| lineLengths[lineLengthsTop/2]|=nibble&0xf; |
| } |
| ++lineLengthsTop; |
| } |
| |
| static uint8_t * |
| allocLine(uint32_t length) { |
| uint32_t top=lineTop+length; |
| uint8_t *p; |
| |
| if(top>wordBottom) { |
| fprintf(stderr, "gennames: out of memory\n"); |
| exit(U_MEMORY_ALLOCATION_ERROR); |
| } |
| p=stringStore+lineTop; |
| lineTop=top; |
| return p; |
| } |
| |
| static uint8_t * |
| allocWord(uint32_t length) { |
| uint32_t bottom=wordBottom-length; |
| |
| if(lineTop>bottom) { |
| fprintf(stderr, "gennames: out of memory\n"); |
| exit(U_MEMORY_ALLOCATION_ERROR); |
| } |
| wordBottom=bottom; |
| return stringStore+bottom; |
| } |
| |
| /* |
| * Hey, Emacs, please set the following: |
| * |
| * Local Variables: |
| * indent-tabs-mode: nil |
| * End: |
| * |
| */ |
