diff options
Diffstat (limited to 'intl/icu/source/tools/makeconv/makeconv.cpp')
| -rw-r--r-- | intl/icu/source/tools/makeconv/makeconv.cpp | 862 |
1 files changed, 862 insertions, 0 deletions
diff --git a/intl/icu/source/tools/makeconv/makeconv.cpp b/intl/icu/source/tools/makeconv/makeconv.cpp new file mode 100644 index 0000000000..b14b4316f3 --- /dev/null +++ b/intl/icu/source/tools/makeconv/makeconv.cpp @@ -0,0 +1,862 @@ +// © 2016 and later: Unicode, Inc. and others. +// License & terms of use: http://www.unicode.org/copyright.html +/* + ******************************************************************************** + * + * Copyright (C) 1998-2015, International Business Machines + * Corporation and others. All Rights Reserved. + * + ******************************************************************************** + * + * + * makeconv.cpp: + * 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 "charstr.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 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!=nullptr) { + if(data->cnvData!=nullptr) { + data->cnvData->close(data->cnvData); + data->cnvData=nullptr; + } + if(data->extData!=nullptr) { + data->extData->close(data->extData); + data->extData=nullptr; + } + ucm_close(data->ucm); + data->ucm=nullptr; + } +} + +/* + * from ucnvstat.c - static prototypes of data-based converters + */ +U_CAPI const UConverterStaticData * ucnv_converterStaticData[UCNV_NUMBER_OF_SUPPORTED_CONVERTER_TYPES]; + +/* + * Global - verbosity + */ +UBool VERBOSE = false; +UBool QUIET = 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(char16_t), + 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 = nullptr; + uint32_t sz2; + uint32_t size = 0; + int32_t tableType; + + if(U_FAILURE(*status)) + { + return; + } + + tableType=TABLE_NONE; + if(data->cnvData!=nullptr) { + tableType|=TABLE_BASE; + } + if(data->extData!=nullptr) { + tableType|=TABLE_EXT; + } + + mem = udata_create(cnvDir, "cnv", cnvName, &dataInfo, haveCopyright ? U_COPYRIGHT_STRING : nullptr, 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_QUIET, + OPT_SOURCEDIR, + + OPT_COUNT +}; + +static UOption options[]={ + UOPTION_HELP_H, + UOPTION_HELP_QUESTION_MARK, + UOPTION_COPYRIGHT, + UOPTION_VERSION, + UOPTION_DESTDIR, + UOPTION_VERBOSE, + { "small", nullptr, nullptr, nullptr, '\1', UOPT_NO_ARG, 0 }, + { "ignore-siso-check", nullptr, nullptr, nullptr, '\1', UOPT_NO_ARG, 0 }, + UOPTION_QUIET, + UOPTION_SOURCEDIR, +}; + +int main(int argc, char* argv[]) +{ + ConvData data; + char cnvName[UCNV_MAX_FULL_FILE_NAME_LENGTH]; + + U_MAIN_INIT_ARGS(argc, argv); + + /* Set up the ICU version number */ + UVersionInfo icuVersion; + 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, UPRV_LENGTHOF(options), options); + + 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); + } + + /* 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" + "\t-q or --quiet do not display warnings and progress\n" + "\t-s or --sourcedir source directory, followed by the path\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; + } + + /* get the options values */ + haveCopyright = options[OPT_COPYRIGHT].doesOccur; + const char *destdir = options[OPT_DESTDIR].value; + VERBOSE = options[OPT_VERBOSE].doesOccur; + QUIET = options[OPT_QUIET].doesOccur; + SMALL = options[OPT_SMALL].doesOccur; + + if (options[OPT_IGNORE_SISO_CHECK].doesOccur) { + IGNORE_SISO_CHECK = true; + } + + icu::CharString outFileName; + UErrorCode err = U_ZERO_ERROR; + if (destdir != nullptr && *destdir != 0) { + outFileName.append(destdir, err).ensureEndsWithFileSeparator(err); + if (U_FAILURE(err)) { + return err; + } + } + int32_t outBasenameStart = outFileName.length(); + +#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 + + UBool printFilename = (UBool) (argc > 2 || VERBOSE); + icu::CharString pathBuf; + for (++argv; --argc; ++argv) + { + UErrorCode localError = U_ZERO_ERROR; + const char *arg = getLongPathname(*argv); + + const char* sourcedir = options[OPT_SOURCEDIR].value; + if (sourcedir != nullptr && *sourcedir != 0 && uprv_strcmp(sourcedir, ".") != 0) { + pathBuf.clear(); + pathBuf.appendPathPart(sourcedir, localError); + pathBuf.appendPathPart(arg, localError); + arg = pathBuf.data(); + } + + /*produces the right destination path for display*/ + outFileName.truncate(outBasenameStart); + if (outBasenameStart != 0) + { + /* find the last file sepator */ + const char *basename = findBasename(arg); + outFileName.append(basename, localError); + } + else + { + outFileName.append(arg, localError); + } + if (U_FAILURE(localError)) { + return localError; + } + + /*removes the extension if any is found*/ + int32_t lastDotIndex = outFileName.lastIndexOf('.'); + if (lastDotIndex >= outBasenameStart) { + outFileName.truncate(lastDotIndex); + } + + /* the basename without extension is the converter name */ + if ((outFileName.length() - outBasenameStart) >= UPRV_LENGTHOF(cnvName)) { + fprintf(stderr, "converter name %s too long\n", outFileName.data() + outBasenameStart); + return U_BUFFER_OVERFLOW_ERROR; + } + uprv_strcpy(cnvName, outFileName.data() + outBasenameStart); + + /*Adds the target extension*/ + outFileName.append(CONVERTER_FILE_EXTENSION, localError); + if (U_FAILURE(localError)) { + return localError; + } + +#if DEBUG + printf("makeconv: processing %s ...\n", arg); + fflush(stdout); +#endif + 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.data(), 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 == nullptr) /* OK, try alternate */ + { + p = strrchr(cnvName, U_FILE_ALT_SEP_CHAR); + if(p == nullptr) + { + p=cnvName; /* If no separators, no problem */ + } + } + else + { + p++; /* If found separator, don't include it in compare */ + } + if(uprv_stricmp(p,data.staticData.name) && !QUIET) + { + 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; + } + } + + localError = U_ZERO_ERROR; + writeConverterData(&data, cnvName, 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.data(), arg, + u_errorName(localError)); + if(U_SUCCESS(err)) { + err = localError; + } + } + else if (printFilename) + { + puts(outFileName.data() + outBasenameStart); + } + } + 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, nullptr, 10); + } else { + *pPlatform=UCNV_UNKNOWN; + *pCCSID=0; + } +} + +static void +readHeader(ConvData *data, + FileStream* convFile, + 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!=nullptr) { + 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==nullptr) { + *pErrorCode=U_FILE_ACCESS_ERROR; + return false; + } + + readHeader(data, convFile, 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=nullptr; + } + + /* 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==nullptr) { + *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==nullptr) { + *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==nullptr) { + *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: + * + */ |