| /* |
| ******************************************************************************** |
| * |
| * Copyright (C) 1998-2012, International Business Machines |
| * Corporation and others. All Rights Reserved. |
| * |
| ******************************************************************************** |
| * |
| * |
| * makeconv.c: |
| * tool creating a binary (compressed) representation of the conversion mapping |
| * table (IBM NLTC ucmap format). |
| * |
| * 05/04/2000 helena Added fallback mapping into the picture... |
| * 06/29/2000 helena Major rewrite of the callback APIs. |
| */ |
| |
| #include <stdio.h> |
| #include "unicode/putil.h" |
| #include "unicode/ucnv_err.h" |
| #include "ucnv_bld.h" |
| #include "ucnv_imp.h" |
| #include "ucnv_cnv.h" |
| #include "cstring.h" |
| #include "cmemory.h" |
| #include "uinvchar.h" |
| #include "filestrm.h" |
| #include "toolutil.h" |
| #include "uoptions.h" |
| #include "unicode/udata.h" |
| #include "unewdata.h" |
| #include "uparse.h" |
| #include "ucm.h" |
| #include "makeconv.h" |
| #include "genmbcs.h" |
| |
| #define LENGTHOF(array) (int32_t)(sizeof(array)/sizeof((array)[0])) |
| |
| #define DEBUG 0 |
| |
| typedef struct ConvData { |
| UCMFile *ucm; |
| NewConverter *cnvData, *extData; |
| UConverterSharedData sharedData; |
| UConverterStaticData staticData; |
| } ConvData; |
| |
| static void |
| initConvData(ConvData *data) { |
| uprv_memset(data, 0, sizeof(ConvData)); |
| data->sharedData.structSize=sizeof(UConverterSharedData); |
| data->staticData.structSize=sizeof(UConverterStaticData); |
| data->sharedData.staticData=&data->staticData; |
| } |
| |
| static void |
| cleanupConvData(ConvData *data) { |
| if(data!=NULL) { |
| if(data->cnvData!=NULL) { |
| data->cnvData->close(data->cnvData); |
| data->cnvData=NULL; |
| } |
| if(data->extData!=NULL) { |
| data->extData->close(data->extData); |
| data->extData=NULL; |
| } |
| ucm_close(data->ucm); |
| data->ucm=NULL; |
| } |
| } |
| |
| /* |
| * from ucnvstat.c - static prototypes of data-based converters |
| */ |
| extern const UConverterStaticData * ucnv_converterStaticData[UCNV_NUMBER_OF_SUPPORTED_CONVERTER_TYPES]; |
| |
| /* |
| * Global - verbosity |
| */ |
| UBool VERBOSE = FALSE; |
| UBool SMALL = FALSE; |
| UBool IGNORE_SISO_CHECK = FALSE; |
| |
| static void |
| createConverter(ConvData *data, const char* converterName, UErrorCode *pErrorCode); |
| |
| /* |
| * Set up the UNewData and write the converter.. |
| */ |
| static void |
| writeConverterData(ConvData *data, const char *cnvName, const char *cnvDir, UErrorCode *status); |
| |
| UBool haveCopyright=TRUE; |
| |
| static UDataInfo dataInfo={ |
| sizeof(UDataInfo), |
| 0, |
| |
| U_IS_BIG_ENDIAN, |
| U_CHARSET_FAMILY, |
| sizeof(UChar), |
| 0, |
| |
| {0x63, 0x6e, 0x76, 0x74}, /* dataFormat="cnvt" */ |
| {6, 2, 0, 0}, /* formatVersion */ |
| {0, 0, 0, 0} /* dataVersion (calculated at runtime) */ |
| }; |
| |
| static void |
| writeConverterData(ConvData *data, const char *cnvName, const char *cnvDir, UErrorCode *status) |
| { |
| UNewDataMemory *mem = NULL; |
| uint32_t sz2; |
| uint32_t size = 0; |
| int32_t tableType; |
| |
| if(U_FAILURE(*status)) |
| { |
| return; |
| } |
| |
| tableType=TABLE_NONE; |
| if(data->cnvData!=NULL) { |
| tableType|=TABLE_BASE; |
| } |
| if(data->extData!=NULL) { |
| tableType|=TABLE_EXT; |
| } |
| |
| mem = udata_create(cnvDir, "cnv", cnvName, &dataInfo, haveCopyright ? U_COPYRIGHT_STRING : NULL, status); |
| |
| if(U_FAILURE(*status)) |
| { |
| fprintf(stderr, "Couldn't create the udata %s.%s: %s\n", |
| cnvName, |
| "cnv", |
| u_errorName(*status)); |
| return; |
| } |
| |
| if(VERBOSE) |
| { |
| printf("- Opened udata %s.%s\n", cnvName, "cnv"); |
| } |
| |
| |
| /* all read only, clean, platform independent data. Mmmm. :) */ |
| udata_writeBlock(mem, &data->staticData, sizeof(UConverterStaticData)); |
| size += sizeof(UConverterStaticData); /* Is 4-aligned - by size */ |
| /* Now, write the table */ |
| if(tableType&TABLE_BASE) { |
| size += data->cnvData->write(data->cnvData, &data->staticData, mem, tableType); |
| } |
| if(tableType&TABLE_EXT) { |
| size += data->extData->write(data->extData, &data->staticData, mem, tableType); |
| } |
| |
| sz2 = udata_finish(mem, status); |
| if(size != sz2) |
| { |
| fprintf(stderr, "error: wrote %u bytes to the .cnv file but counted %u bytes\n", (int)sz2, (int)size); |
| *status=U_INTERNAL_PROGRAM_ERROR; |
| } |
| if(VERBOSE) |
| { |
| printf("- Wrote %u bytes to the udata.\n", (int)sz2); |
| } |
| } |
| |
| enum { |
| OPT_HELP_H, |
| OPT_HELP_QUESTION_MARK, |
| OPT_COPYRIGHT, |
| OPT_VERSION, |
| OPT_DESTDIR, |
| OPT_VERBOSE, |
| OPT_SMALL, |
| OPT_IGNORE_SISO_CHECK, |
| OPT_COUNT |
| }; |
| |
| static UOption options[]={ |
| UOPTION_HELP_H, |
| UOPTION_HELP_QUESTION_MARK, |
| UOPTION_COPYRIGHT, |
| UOPTION_VERSION, |
| UOPTION_DESTDIR, |
| UOPTION_VERBOSE, |
| { "small", NULL, NULL, NULL, '\1', UOPT_NO_ARG, 0 }, |
| { "ignore-siso-check", NULL, NULL, NULL, '\1', UOPT_NO_ARG, 0 } |
| }; |
| |
| int main(int argc, char* argv[]) |
| { |
| ConvData data; |
| UErrorCode err = U_ZERO_ERROR, localError; |
| char outFileName[UCNV_MAX_FULL_FILE_NAME_LENGTH]; |
| const char* destdir, *arg; |
| size_t destdirlen; |
| char* dot = NULL, *outBasename; |
| char cnvName[UCNV_MAX_FULL_FILE_NAME_LENGTH]; |
| char cnvNameWithPkg[UCNV_MAX_FULL_FILE_NAME_LENGTH]; |
| UVersionInfo icuVersion; |
| UBool printFilename; |
| |
| err = U_ZERO_ERROR; |
| |
| U_MAIN_INIT_ARGS(argc, argv); |
| |
| /* Set up the ICU version number */ |
| u_getVersion(icuVersion); |
| uprv_memcpy(&dataInfo.dataVersion, &icuVersion, sizeof(UVersionInfo)); |
| |
| /* preset then read command line options */ |
| options[OPT_DESTDIR].value=u_getDataDirectory(); |
| argc=u_parseArgs(argc, argv, LENGTHOF(options), 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[OPT_HELP_H].doesOccur || options[OPT_HELP_QUESTION_MARK].doesOccur) { |
| FILE *stdfile=argc<0 ? stderr : stdout; |
| fprintf(stdfile, |
| "usage: %s [-options] files...\n" |
| "\tread .ucm codepage mapping files and write .cnv files\n" |
| "options:\n" |
| "\t-h or -? or --help this usage text\n" |
| "\t-V or --version show a version message\n" |
| "\t-c or --copyright include a copyright notice\n" |
| "\t-d or --destdir destination directory, followed by the path\n" |
| "\t-v or --verbose Turn on verbose output\n", |
| argv[0]); |
| fprintf(stdfile, |
| "\t --small Generate smaller .cnv files. They will be\n" |
| "\t significantly smaller but may not be compatible with\n" |
| "\t older versions of ICU and will require heap memory\n" |
| "\t allocation when loaded.\n" |
| "\t --ignore-siso-check Use SI/SO other than 0xf/0xe.\n"); |
| return argc<0 ? U_ILLEGAL_ARGUMENT_ERROR : U_ZERO_ERROR; |
| } |
| |
| if(options[OPT_VERSION].doesOccur) { |
| printf("makeconv version %u.%u, ICU tool to read .ucm codepage mapping files and write .cnv files\n", |
| dataInfo.formatVersion[0], dataInfo.formatVersion[1]); |
| printf("%s\n", U_COPYRIGHT_STRING); |
| exit(0); |
| } |
| |
| /* get the options values */ |
| haveCopyright = options[OPT_COPYRIGHT].doesOccur; |
| destdir = options[OPT_DESTDIR].value; |
| VERBOSE = options[OPT_VERBOSE].doesOccur; |
| SMALL = options[OPT_SMALL].doesOccur; |
| |
| if (options[OPT_IGNORE_SISO_CHECK].doesOccur) { |
| IGNORE_SISO_CHECK = TRUE; |
| } |
| |
| if (destdir != NULL && *destdir != 0) { |
| uprv_strcpy(outFileName, destdir); |
| destdirlen = uprv_strlen(destdir); |
| outBasename = outFileName + destdirlen; |
| if (*(outBasename - 1) != U_FILE_SEP_CHAR) { |
| *outBasename++ = U_FILE_SEP_CHAR; |
| ++destdirlen; |
| } |
| } else { |
| destdirlen = 0; |
| outBasename = outFileName; |
| } |
| |
| #if DEBUG |
| { |
| int i; |
| printf("makeconv: processing %d files...\n", argc - 1); |
| for(i=1; i<argc; ++i) { |
| printf("%s ", argv[i]); |
| } |
| printf("\n"); |
| fflush(stdout); |
| } |
| #endif |
| |
| err = U_ZERO_ERROR; |
| printFilename = (UBool) (argc > 2 || VERBOSE); |
| for (++argv; --argc; ++argv) |
| { |
| arg = getLongPathname(*argv); |
| |
| /* Check for potential buffer overflow */ |
| if(strlen(arg) >= UCNV_MAX_FULL_FILE_NAME_LENGTH) |
| { |
| fprintf(stderr, "%s\n", u_errorName(U_BUFFER_OVERFLOW_ERROR)); |
| return U_BUFFER_OVERFLOW_ERROR; |
| } |
| |
| /*produces the right destination path for display*/ |
| if (destdirlen != 0) |
| { |
| const char *basename; |
| |
| /* find the last file sepator */ |
| basename = findBasename(arg); |
| uprv_strcpy(outBasename, basename); |
| } |
| else |
| { |
| uprv_strcpy(outFileName, arg); |
| } |
| |
| /*removes the extension if any is found*/ |
| dot = uprv_strrchr(outBasename, '.'); |
| if (dot) |
| { |
| *dot = '\0'; |
| } |
| |
| /* the basename without extension is the converter name */ |
| uprv_strcpy(cnvName, outBasename); |
| |
| /*Adds the target extension*/ |
| uprv_strcat(outBasename, CONVERTER_FILE_EXTENSION); |
| |
| #if DEBUG |
| printf("makeconv: processing %s ...\n", arg); |
| fflush(stdout); |
| #endif |
| localError = U_ZERO_ERROR; |
| initConvData(&data); |
| createConverter(&data, arg, &localError); |
| |
| if (U_FAILURE(localError)) |
| { |
| /* if an error is found, print out an error msg and keep going */ |
| fprintf(stderr, "Error creating converter for \"%s\" file for \"%s\" (%s)\n", outFileName, arg, |
| u_errorName(localError)); |
| if(U_SUCCESS(err)) { |
| err = localError; |
| } |
| } |
| else |
| { |
| /* Insure the static data name matches the file name */ |
| /* Changed to ignore directory and only compare base name |
| LDH 1/2/08*/ |
| char *p; |
| p = strrchr(cnvName, U_FILE_SEP_CHAR); /* Find last file separator */ |
| |
| if(p == NULL) /* OK, try alternate */ |
| { |
| p = strrchr(cnvName, U_FILE_ALT_SEP_CHAR); |
| if(p == NULL) |
| { |
| p=cnvName; /* If no separators, no problem */ |
| } |
| } |
| else |
| { |
| p++; /* If found separtor, don't include it in compare */ |
| } |
| if(uprv_stricmp(p,data.staticData.name)) |
| { |
| fprintf(stderr, "Warning: %s%s claims to be '%s'\n", |
| cnvName, CONVERTER_FILE_EXTENSION, |
| data.staticData.name); |
| } |
| |
| uprv_strcpy((char*)data.staticData.name, cnvName); |
| |
| if(!uprv_isInvariantString((char*)data.staticData.name, -1)) { |
| fprintf(stderr, |
| "Error: A converter name must contain only invariant characters.\n" |
| "%s is not a valid converter name.\n", |
| data.staticData.name); |
| if(U_SUCCESS(err)) { |
| err = U_INVALID_TABLE_FORMAT; |
| } |
| } |
| |
| uprv_strcpy(cnvNameWithPkg, cnvName); |
| |
| localError = U_ZERO_ERROR; |
| writeConverterData(&data, cnvNameWithPkg, destdir, &localError); |
| |
| if(U_FAILURE(localError)) |
| { |
| /* if an error is found, print out an error msg and keep going*/ |
| fprintf(stderr, "Error writing \"%s\" file for \"%s\" (%s)\n", outFileName, arg, |
| u_errorName(localError)); |
| if(U_SUCCESS(err)) { |
| err = localError; |
| } |
| } |
| else if (printFilename) |
| { |
| puts(outBasename); |
| } |
| } |
| fflush(stdout); |
| fflush(stderr); |
| |
| cleanupConvData(&data); |
| } |
| |
| return err; |
| } |
| |
| static void |
| getPlatformAndCCSIDFromName(const char *name, int8_t *pPlatform, int32_t *pCCSID) { |
| if( (name[0]=='i' || name[0]=='I') && |
| (name[1]=='b' || name[1]=='B') && |
| (name[2]=='m' || name[2]=='M') |
| ) { |
| name+=3; |
| if(*name=='-') { |
| ++name; |
| } |
| *pPlatform=UCNV_IBM; |
| *pCCSID=(int32_t)uprv_strtoul(name, NULL, 10); |
| } else { |
| *pPlatform=UCNV_UNKNOWN; |
| *pCCSID=0; |
| } |
| } |
| |
| static void |
| readHeader(ConvData *data, |
| FileStream* convFile, |
| const char* converterName, |
| UErrorCode *pErrorCode) { |
| char line[1024]; |
| char *s, *key, *value; |
| const UConverterStaticData *prototype; |
| UConverterStaticData *staticData; |
| |
| if(U_FAILURE(*pErrorCode)) { |
| return; |
| } |
| |
| staticData=&data->staticData; |
| staticData->platform=UCNV_IBM; |
| staticData->subCharLen=0; |
| |
| while(T_FileStream_readLine(convFile, line, sizeof(line))) { |
| /* basic parsing and handling of state-related items */ |
| if(ucm_parseHeaderLine(data->ucm, line, &key, &value)) { |
| continue; |
| } |
| |
| /* stop at the beginning of the mapping section */ |
| if(uprv_strcmp(line, "CHARMAP")==0) { |
| break; |
| } |
| |
| /* collect the information from the header field, ignore unknown keys */ |
| if(uprv_strcmp(key, "code_set_name")==0) { |
| if(*value!=0) { |
| uprv_strcpy((char *)staticData->name, value); |
| getPlatformAndCCSIDFromName(value, &staticData->platform, &staticData->codepage); |
| } |
| } else if(uprv_strcmp(key, "subchar")==0) { |
| uint8_t bytes[UCNV_EXT_MAX_BYTES]; |
| int8_t length; |
| |
| s=value; |
| length=ucm_parseBytes(bytes, line, (const char **)&s); |
| if(1<=length && length<=4 && *s==0) { |
| staticData->subCharLen=length; |
| uprv_memcpy(staticData->subChar, bytes, length); |
| } else { |
| fprintf(stderr, "error: illegal <subchar> %s\n", value); |
| *pErrorCode=U_INVALID_TABLE_FORMAT; |
| return; |
| } |
| } else if(uprv_strcmp(key, "subchar1")==0) { |
| uint8_t bytes[UCNV_EXT_MAX_BYTES]; |
| |
| s=value; |
| if(1==ucm_parseBytes(bytes, line, (const char **)&s) && *s==0) { |
| staticData->subChar1=bytes[0]; |
| } else { |
| fprintf(stderr, "error: illegal <subchar1> %s\n", value); |
| *pErrorCode=U_INVALID_TABLE_FORMAT; |
| return; |
| } |
| } |
| } |
| |
| /* copy values from the UCMFile to the static data */ |
| staticData->maxBytesPerChar=(int8_t)data->ucm->states.maxCharLength; |
| staticData->minBytesPerChar=(int8_t)data->ucm->states.minCharLength; |
| staticData->conversionType=data->ucm->states.conversionType; |
| |
| if(staticData->conversionType==UCNV_UNSUPPORTED_CONVERTER) { |
| fprintf(stderr, "ucm error: missing conversion type (<uconv_class>)\n"); |
| *pErrorCode=U_INVALID_TABLE_FORMAT; |
| return; |
| } |
| |
| /* |
| * Now that we know the type, copy any 'default' values from the table. |
| * We need not check the type any further because the parser only |
| * recognizes what we have prototypes for. |
| * |
| * For delta (extension-only) tables, copy values from the base file |
| * instead, see createConverter(). |
| */ |
| if(data->ucm->baseName[0]==0) { |
| prototype=ucnv_converterStaticData[staticData->conversionType]; |
| if(prototype!=NULL) { |
| if(staticData->name[0]==0) { |
| uprv_strcpy((char *)staticData->name, prototype->name); |
| } |
| |
| if(staticData->codepage==0) { |
| staticData->codepage=prototype->codepage; |
| } |
| |
| if(staticData->platform==0) { |
| staticData->platform=prototype->platform; |
| } |
| |
| if(staticData->minBytesPerChar==0) { |
| staticData->minBytesPerChar=prototype->minBytesPerChar; |
| } |
| |
| if(staticData->maxBytesPerChar==0) { |
| staticData->maxBytesPerChar=prototype->maxBytesPerChar; |
| } |
| |
| if(staticData->subCharLen==0) { |
| staticData->subCharLen=prototype->subCharLen; |
| if(prototype->subCharLen>0) { |
| uprv_memcpy(staticData->subChar, prototype->subChar, prototype->subCharLen); |
| } |
| } |
| } |
| } |
| |
| if(data->ucm->states.outputType<0) { |
| data->ucm->states.outputType=(int8_t)data->ucm->states.maxCharLength-1; |
| } |
| |
| if( staticData->subChar1!=0 && |
| (staticData->minBytesPerChar>1 || |
| (staticData->conversionType!=UCNV_MBCS && |
| staticData->conversionType!=UCNV_EBCDIC_STATEFUL)) |
| ) { |
| fprintf(stderr, "error: <subchar1> defined for a type other than MBCS or EBCDIC_STATEFUL\n"); |
| *pErrorCode=U_INVALID_TABLE_FORMAT; |
| } |
| } |
| |
| /* return TRUE if a base table was read, FALSE for an extension table */ |
| static UBool |
| readFile(ConvData *data, const char* converterName, |
| UErrorCode *pErrorCode) { |
| char line[1024]; |
| char *end; |
| FileStream *convFile; |
| |
| UCMStates *baseStates; |
| UBool dataIsBase; |
| |
| if(U_FAILURE(*pErrorCode)) { |
| return FALSE; |
| } |
| |
| data->ucm=ucm_open(); |
| |
| convFile=T_FileStream_open(converterName, "r"); |
| if(convFile==NULL) { |
| *pErrorCode=U_FILE_ACCESS_ERROR; |
| return FALSE; |
| } |
| |
| readHeader(data, convFile, converterName, pErrorCode); |
| if(U_FAILURE(*pErrorCode)) { |
| return FALSE; |
| } |
| |
| if(data->ucm->baseName[0]==0) { |
| dataIsBase=TRUE; |
| baseStates=&data->ucm->states; |
| ucm_processStates(baseStates, IGNORE_SISO_CHECK); |
| } else { |
| dataIsBase=FALSE; |
| baseStates=NULL; |
| } |
| |
| /* read the base table */ |
| ucm_readTable(data->ucm, convFile, dataIsBase, baseStates, pErrorCode); |
| if(U_FAILURE(*pErrorCode)) { |
| return FALSE; |
| } |
| |
| /* read an extension table if there is one */ |
| while(T_FileStream_readLine(convFile, line, sizeof(line))) { |
| end=uprv_strchr(line, 0); |
| while(line<end && |
| (*(end-1)=='\n' || *(end-1)=='\r' || *(end-1)==' ' || *(end-1)=='\t')) { |
| --end; |
| } |
| *end=0; |
| |
| if(line[0]=='#' || u_skipWhitespace(line)==end) { |
| continue; /* ignore empty and comment lines */ |
| } |
| |
| if(0==uprv_strcmp(line, "CHARMAP")) { |
| /* read the extension table */ |
| ucm_readTable(data->ucm, convFile, FALSE, baseStates, pErrorCode); |
| } else { |
| fprintf(stderr, "unexpected text after the base mapping table\n"); |
| } |
| break; |
| } |
| |
| T_FileStream_close(convFile); |
| |
| if(data->ucm->base->flagsType==UCM_FLAGS_MIXED || data->ucm->ext->flagsType==UCM_FLAGS_MIXED) { |
| fprintf(stderr, "error: some entries have the mapping precision (with '|'), some do not\n"); |
| *pErrorCode=U_INVALID_TABLE_FORMAT; |
| } |
| |
| return dataIsBase; |
| } |
| |
| static void |
| createConverter(ConvData *data, const char *converterName, UErrorCode *pErrorCode) { |
| ConvData baseData; |
| UBool dataIsBase; |
| |
| UConverterStaticData *staticData; |
| UCMStates *states, *baseStates; |
| |
| if(U_FAILURE(*pErrorCode)) { |
| return; |
| } |
| |
| initConvData(data); |
| |
| dataIsBase=readFile(data, converterName, pErrorCode); |
| if(U_FAILURE(*pErrorCode)) { |
| return; |
| } |
| |
| staticData=&data->staticData; |
| states=&data->ucm->states; |
| |
| if(dataIsBase) { |
| /* |
| * Build a normal .cnv file with a base table |
| * and an optional extension table. |
| */ |
| data->cnvData=MBCSOpen(data->ucm); |
| if(data->cnvData==NULL) { |
| *pErrorCode=U_MEMORY_ALLOCATION_ERROR; |
| |
| } else if(!data->cnvData->isValid(data->cnvData, |
| staticData->subChar, staticData->subCharLen) |
| ) { |
| fprintf(stderr, " the substitution character byte sequence is illegal in this codepage structure!\n"); |
| *pErrorCode=U_INVALID_TABLE_FORMAT; |
| |
| } else if(staticData->subChar1!=0 && |
| !data->cnvData->isValid(data->cnvData, &staticData->subChar1, 1) |
| ) { |
| fprintf(stderr, " the subchar1 byte is illegal in this codepage structure!\n"); |
| *pErrorCode=U_INVALID_TABLE_FORMAT; |
| |
| } else if( |
| data->ucm->ext->mappingsLength>0 && |
| !ucm_checkBaseExt(states, data->ucm->base, data->ucm->ext, data->ucm->ext, FALSE) |
| ) { |
| *pErrorCode=U_INVALID_TABLE_FORMAT; |
| } else if(data->ucm->base->flagsType&UCM_FLAGS_EXPLICIT) { |
| /* sort the table so that it can be turned into UTF-8-friendly data */ |
| ucm_sortTable(data->ucm->base); |
| } |
| |
| if(U_SUCCESS(*pErrorCode)) { |
| if( |
| /* add the base table after ucm_checkBaseExt()! */ |
| !data->cnvData->addTable(data->cnvData, data->ucm->base, &data->staticData) |
| ) { |
| *pErrorCode=U_INVALID_TABLE_FORMAT; |
| } else { |
| /* |
| * addTable() may have requested moving more mappings to the extension table |
| * if they fit into the base toUnicode table but not into the |
| * base fromUnicode table. |
| * (Especially for UTF-8-friendly fromUnicode tables.) |
| * Such mappings will have the MBCS_FROM_U_EXT_FLAG set, which causes them |
| * to be excluded from the extension toUnicode data. |
| * See MBCSOkForBaseFromUnicode() for which mappings do not fit into |
| * the base fromUnicode table. |
| */ |
| ucm_moveMappings(data->ucm->base, data->ucm->ext); |
| ucm_sortTable(data->ucm->ext); |
| if(data->ucm->ext->mappingsLength>0) { |
| /* prepare the extension table, if there is one */ |
| data->extData=CnvExtOpen(data->ucm); |
| if(data->extData==NULL) { |
| *pErrorCode=U_MEMORY_ALLOCATION_ERROR; |
| } else if( |
| !data->extData->addTable(data->extData, data->ucm->ext, &data->staticData) |
| ) { |
| *pErrorCode=U_INVALID_TABLE_FORMAT; |
| } |
| } |
| } |
| } |
| } else { |
| /* Build an extension-only .cnv file. */ |
| char baseFilename[500]; |
| char *basename; |
| |
| initConvData(&baseData); |
| |
| /* assemble a path/filename for data->ucm->baseName */ |
| uprv_strcpy(baseFilename, converterName); |
| basename=(char *)findBasename(baseFilename); |
| uprv_strcpy(basename, data->ucm->baseName); |
| uprv_strcat(basename, ".ucm"); |
| |
| /* read the base table */ |
| dataIsBase=readFile(&baseData, baseFilename, pErrorCode); |
| if(U_FAILURE(*pErrorCode)) { |
| return; |
| } else if(!dataIsBase) { |
| fprintf(stderr, "error: the <icu:base> file \"%s\" is not a base table file\n", baseFilename); |
| *pErrorCode=U_INVALID_TABLE_FORMAT; |
| } else { |
| /* prepare the extension table */ |
| data->extData=CnvExtOpen(data->ucm); |
| if(data->extData==NULL) { |
| *pErrorCode=U_MEMORY_ALLOCATION_ERROR; |
| } else { |
| /* fill in gaps in extension file header fields */ |
| UCMapping *m, *mLimit; |
| uint8_t fallbackFlags; |
| |
| baseStates=&baseData.ucm->states; |
| if(states->conversionType==UCNV_DBCS) { |
| staticData->minBytesPerChar=(int8_t)(states->minCharLength=2); |
| } else if(states->minCharLength==0) { |
| staticData->minBytesPerChar=(int8_t)(states->minCharLength=baseStates->minCharLength); |
| } |
| if(states->maxCharLength<states->minCharLength) { |
| staticData->maxBytesPerChar=(int8_t)(states->maxCharLength=baseStates->maxCharLength); |
| } |
| |
| if(staticData->subCharLen==0) { |
| uprv_memcpy(staticData->subChar, baseData.staticData.subChar, 4); |
| staticData->subCharLen=baseData.staticData.subCharLen; |
| } |
| /* |
| * do not copy subChar1 - |
| * only use what is explicitly specified |
| * because it cannot be unset in the extension file header |
| */ |
| |
| /* get the fallback flags */ |
| fallbackFlags=0; |
| for(m=baseData.ucm->base->mappings, mLimit=m+baseData.ucm->base->mappingsLength; |
| m<mLimit && fallbackFlags!=3; |
| ++m |
| ) { |
| if(m->f==1) { |
| fallbackFlags|=1; |
| } else if(m->f==3) { |
| fallbackFlags|=2; |
| } |
| } |
| |
| if(fallbackFlags&1) { |
| staticData->hasFromUnicodeFallback=TRUE; |
| } |
| if(fallbackFlags&2) { |
| staticData->hasToUnicodeFallback=TRUE; |
| } |
| |
| if(1!=ucm_countChars(baseStates, staticData->subChar, staticData->subCharLen)) { |
| fprintf(stderr, " the substitution character byte sequence is illegal in this codepage structure!\n"); |
| *pErrorCode=U_INVALID_TABLE_FORMAT; |
| |
| } else if(staticData->subChar1!=0 && 1!=ucm_countChars(baseStates, &staticData->subChar1, 1)) { |
| fprintf(stderr, " the subchar1 byte is illegal in this codepage structure!\n"); |
| *pErrorCode=U_INVALID_TABLE_FORMAT; |
| |
| } else if( |
| !ucm_checkValidity(data->ucm->ext, baseStates) || |
| !ucm_checkBaseExt(baseStates, baseData.ucm->base, data->ucm->ext, data->ucm->ext, FALSE) |
| ) { |
| *pErrorCode=U_INVALID_TABLE_FORMAT; |
| } else { |
| if(states->maxCharLength>1) { |
| /* |
| * When building a normal .cnv file with a base table |
| * for an MBCS (not SBCS) table with explicit precision flags, |
| * the MBCSAddTable() function marks some mappings for moving |
| * to the extension table. |
| * They fit into the base toUnicode table but not into the |
| * base fromUnicode table. |
| * (Note: We do have explicit precision flags because they are |
| * required for extension table generation, and |
| * ucm_checkBaseExt() verified it.) |
| * |
| * We do not call MBCSAddTable() here (we probably could) |
| * so we need to do the analysis before building the extension table. |
| * We assume that MBCSAddTable() will build a UTF-8-friendly table. |
| * Redundant mappings in the extension table are ok except they cost some size. |
| * |
| * Do this after ucm_checkBaseExt(). |
| */ |
| const MBCSData *mbcsData=MBCSGetDummy(); |
| int32_t needsMove=0; |
| for(m=baseData.ucm->base->mappings, mLimit=m+baseData.ucm->base->mappingsLength; |
| m<mLimit; |
| ++m |
| ) { |
| if(!MBCSOkForBaseFromUnicode(mbcsData, m->b.bytes, m->bLen, m->u, m->f)) { |
| m->f|=MBCS_FROM_U_EXT_FLAG; |
| m->moveFlag=UCM_MOVE_TO_EXT; |
| ++needsMove; |
| } |
| } |
| |
| if(needsMove!=0) { |
| ucm_moveMappings(baseData.ucm->base, data->ucm->ext); |
| ucm_sortTable(data->ucm->ext); |
| } |
| } |
| if(!data->extData->addTable(data->extData, data->ucm->ext, &data->staticData)) { |
| *pErrorCode=U_INVALID_TABLE_FORMAT; |
| } |
| } |
| } |
| } |
| |
| cleanupConvData(&baseData); |
| } |
| } |
| |
| /* |
| * Hey, Emacs, please set the following: |
| * |
| * Local Variables: |
| * indent-tabs-mode: nil |
| * End: |
| * |
| */ |
