void convsample_50() {
printf("\n\n==============================================\n"
"Sample 50: C: ucnv_detectUnicodeSignature\n");
//! [ucnv_detectUnicodeSignature]
UErrorCode err = U_ZERO_ERROR;
UBool discardSignature = TRUE; /* set to TRUE to throw away the initial U+FEFF */
char input[] = { '\xEF','\xBB', '\xBF','\x41','\x42','\x43' };
int32_t signatureLength = 0;
const char *encoding = ucnv_detectUnicodeSignature(input,sizeof(input),&signatureLength,&err);
UConverter *conv = NULL;
UChar output[100];
UChar *target = output, *out;
const char *source = input;
if(encoding!=NULL && U_SUCCESS(err)){
// should signature be discarded ?
conv = ucnv_open(encoding, &err);
// do the conversion
ucnv_toUnicode(conv,
&target, output + UPRV_LENGTHOF(output),
&source, input + sizeof(input),
NULL, TRUE, &err);
out = output;
if (discardSignature){
++out; // ignore initial U+FEFF
}
while(out != target) {
printf("%04x ", *out++);
}
puts("");
}
//! [ucnv_detectUnicodeSignature]
puts("");
}
int initTxt(struct doc_descriptor *desc) {
UErrorCode err;
char *encoding = NULL;
int len, BOMlength = 0;
char buf[BUFSIZE];
UChar outbuf[4*BUFSIZE];
lseek(desc->fd, 0, SEEK_SET);
len = read(desc->fd, buf, BUFSIZE);
/* detect BOM */
err = U_ZERO_ERROR;
encoding = ucnv_detectUnicodeSignature(buf, BUFSIZE, &BOMlength, &err);
if(encoding != NULL) {
lseek(desc->fd, BOMlength, SEEK_SET);
/* initialize converter to encoding */
err = U_ZERO_ERROR;
desc->conv = ucnv_open(encoding, &err);
if (U_FAILURE(err)) {
fprintf(stderr, "unable to open ICU converter\n");
return ERR_ICU;
}
} else {
/* initialize converter to UTF-8 */
err = U_ZERO_ERROR;
desc->conv = ucnv_open("utf8", &err);
if (U_FAILURE(err)) {
fprintf(stderr, "unable to open ICU converter\n");
return ERR_ICU;
}
/* check the first 2048 bytes */
err = U_ZERO_ERROR;
ucnv_setToUCallBack(desc->conv, UCNV_TO_U_CALLBACK_STOP, NULL, NULL, NULL, &err);
if (U_FAILURE(err)) {
fprintf(stderr, "error setToUCallback\n");
return ERR_ICU;
}
err = U_ZERO_ERROR;
ucnv_toUChars(desc->conv, outbuf, 4 * BUFSIZE, buf, len, &err);
if (U_FAILURE(err)) {
fprintf(stderr, "Unknown encoding\n");
return ERR_ICU;
}
lseek(desc->fd, 0, SEEK_SET);
}
return OK;
}
U_CAPI UBool U_EXPORT2
ucbuf_autodetect_fs(FileStream* in, const char** cp, UConverter** conv, int32_t* signatureLength, UErrorCode* error){
char start[8];
int32_t numRead;
UChar target[1]={ 0 };
UChar* pTarget;
const char* pStart;
/* read a few bytes */
numRead=T_FileStream_read(in, start, sizeof(start));
*cp = ucnv_detectUnicodeSignature(start, numRead, signatureLength, error);
/* unread the bytes beyond what was consumed for U+FEFF */
T_FileStream_rewind(in);
if (*signatureLength > 0) {
numRead = T_FileStream_read(in, start, *signatureLength);
}
if(*cp==NULL){
*conv =NULL;
return FALSE;
}
/* open the converter for the detected Unicode charset */
*conv = ucnv_open(*cp,error);
/* convert and ignore initial U+FEFF, and the buffer overflow */
pTarget = target;
pStart = start;
ucnv_toUnicode(*conv, &pTarget, target+1, &pStart, start+*signatureLength, NULL, FALSE, error);
*signatureLength = (int32_t)(pStart - start);
if(*error==U_BUFFER_OVERFLOW_ERROR) {
*error=U_ZERO_ERROR;
}
/* verify that we successfully read exactly U+FEFF */
if(U_SUCCESS(*error) && (pTarget!=(target+1) || target[0]!=0xfeff)) {
*error=U_INTERNAL_PROGRAM_ERROR;
}
return TRUE;
}
UBreakIterator*
get_rules(const char *ruleFileName, UErrorCode status)
{
/* Read in the rule source file */
long result;
long ruleFileSize;
FILE *file;
OFILE *ufile;
UBreakIterator *return_me;
file = fopen(ruleFileName, "rb");
if( file == 0 ) {
fprintf(stderr, "Could not open file \"%s\"\n", ruleFileName);
exit(-1);
}
fseek(file, 0, SEEK_END);
ruleFileSize = ftell(file);
fseek(file, 0, SEEK_SET);
char *ruleBufferC = (char *) omalloc (ruleFileSize + 1);
ruleBufferC[ruleFileSize] = '\0';
result = (long)fread(ruleBufferC, 1, ruleFileSize, file);
if (result != ruleFileSize) {
fprintf(stderr, "Error reading file \"%s\"\n", ruleFileName);
exit (-1);
}
/* Look for a Unicode Signature (BOM) on the rule file */
int32_t signatureLength;
const char * ruleSourceC = ruleBufferC;
const char* encoding = ucnv_detectUnicodeSignature(
ruleSourceC, ruleFileSize, &signatureLength, &status);
/* fprintf(stderr, "DetectUnicodeSig: \"%s\"\n", encoding); */
if (U_FAILURE(status))
{
fprintf(stderr, "\nCan not initialize ICU. status = %s\n",
u_errorName(status));
exit(1);
}
if(encoding!=NULL )
{
ruleSourceC += signatureLength;
ruleFileSize -= signatureLength;
}
/* fprintf(stderr, "encoding: \"%s\"\n", encoding); */
/* Open a converter to take the rule file to UTF-16 */
UConverter* conv;
conv = ucnv_open(encoding, &status);
if (U_FAILURE(status)) {
fprintf(stderr, "ucnv_open: ICU Error \"%s\"\n", u_errorName(status));
exit(1);
}
ufile = u_finit(file, NULL, NULL);
u_frewind(ufile);
UChar *ruleSourceU = (UChar *) omalloc ((ruleFileSize*sizeof(UChar))+1);
long charsRead = u_file_read(ruleSourceU, ruleFileSize, ufile);
/* u_fprintf(u_stderr, "Chars read: \"%i\", File size: \"%i\"\n", charsRead, ruleFileSize); */
ruleSourceU[charsRead] = 0;
/* u_fprintf(u_stderr, "RulesourceU POST: \"%S\"\n", ruleSourceU); */
ucnv_close(conv);
u_fclose(ufile);
/* Create the break iterator from the rules */
/* This will compile the rules. */
UParseError parseError;
parseError.line = 0;
parseError.offset = 0;
return_me = ubrk_openRules(ruleSourceU, ruleFileSize, NULL, 0, &parseError, &status);
if (U_FAILURE(status)) {
fprintf(stderr, "createRuleBasedBreakIterator: ICU Error \"%s\" at line %d, column %d\n",
u_errorName(status), (int)parseError.line, (int)parseError.offset);
exit(1);
};
return return_me;
}
//----------------------------------------------------------------------------
//
// main for genctd
//
//----------------------------------------------------------------------------
int main(int argc, char **argv) {
UErrorCode status = U_ZERO_ERROR;
const char *wordFileName;
const char *outFileName;
const char *outDir = NULL;
const char *copyright = NULL;
//
// Pick up and check the command line arguments,
// using the standard ICU tool utils option handling.
//
U_MAIN_INIT_ARGS(argc, argv);
progName = argv[0];
argc=u_parseArgs(argc, argv, sizeof(options)/sizeof(options[0]), options);
if(argc<0) {
// Unrecognized option
fprintf(stderr, "error in command line argument \"%s\"\n", argv[-argc]);
usageAndDie(U_ILLEGAL_ARGUMENT_ERROR);
}
if(options[0].doesOccur || options[1].doesOccur) {
// -? or -h for help.
usageAndDie(0);
}
if (!options[3].doesOccur || argc < 2) {
fprintf(stderr, "input and output file must both be specified.\n");
usageAndDie(U_ILLEGAL_ARGUMENT_ERROR);
}
outFileName = options[3].value;
wordFileName = argv[1];
if (options[4].doesOccur) {
u_setDataDirectory(options[4].value);
}
status = U_ZERO_ERROR;
/* Combine the directory with the file name */
if(options[5].doesOccur) {
outDir = options[5].value;
}
if (options[6].doesOccur) {
copyright = U_COPYRIGHT_STRING;
}
#if UCONFIG_NO_BREAK_ITERATION || UCONFIG_NO_FILE_IO
UNewDataMemory *pData;
char msg[1024];
/* write message with just the name */
sprintf(msg, "genctd writes dummy %s because of UCONFIG_NO_BREAK_ITERATION and/or UCONFIG_NO_FILE_IO, see uconfig.h", outFileName);
fprintf(stderr, "%s\n", msg);
/* write the dummy data file */
pData = udata_create(outDir, NULL, outFileName, &dummyDataInfo, NULL, &status);
udata_writeBlock(pData, msg, strlen(msg));
udata_finish(pData, &status);
return (int)status;
#else
/* Initialize ICU */
u_init(&status);
if (U_FAILURE(status)) {
fprintf(stderr, "%s: can not initialize ICU. status = %s\n",
argv[0], u_errorName(status));
exit(1);
}
status = U_ZERO_ERROR;
//
// Read in the dictionary source file
//
long result;
long wordFileSize;
FILE *file;
char *wordBufferC;
MutableTrieDictionary *mtd = NULL;
file = fopen(wordFileName, "rb");
if( file == 0 ) { //cannot find file
//create 1-line dummy file: ie 1 char, 1 value
UNewDataMemory *pData;
char msg[1024];
/* write message with just the name */
sprintf(msg, "%s not found, genctd writes dummy %s", wordFileName, outFileName);
fprintf(stderr, "%s\n", msg);
UChar c = 0x0020;
mtd = new MutableTrieDictionary(c, status, TRUE);
mtd->addWord(&c, 1, status, 1);
} else { //read words in from input file
fseek(file, 0, SEEK_END);
wordFileSize = ftell(file);
fseek(file, 0, SEEK_SET);
wordBufferC = new char[wordFileSize+10];
result = (long)fread(wordBufferC, 1, wordFileSize, file);
if (result != wordFileSize) {
fprintf(stderr, "Error reading file \"%s\"\n", wordFileName);
exit (-1);
}
wordBufferC[wordFileSize]=0;
fclose(file);
//
// Look for a Unicode Signature (BOM) on the word file
//
int32_t signatureLength;
const char * wordSourceC = wordBufferC;
const char* encoding = ucnv_detectUnicodeSignature(
wordSourceC, wordFileSize, &signatureLength, &status);
if (U_FAILURE(status)) {
exit(status);
}
if(encoding!=NULL ){
wordSourceC += signatureLength;
wordFileSize -= signatureLength;
}
//
// Open a converter to take the rule file to UTF-16
//
UConverter* conv;
conv = ucnv_open(encoding, &status);
if (U_FAILURE(status)) {
fprintf(stderr, "ucnv_open: ICU Error \"%s\"\n", u_errorName(status));
exit(status);
}
//
// Convert the words to UChar.
// Preflight first to determine required buffer size.
//
uint32_t destCap = ucnv_toUChars(conv,
NULL, // dest,
0, // destCapacity,
wordSourceC,
wordFileSize,
&status);
if (status != U_BUFFER_OVERFLOW_ERROR) {
fprintf(stderr, "ucnv_toUChars: ICU Error \"%s\"\n", u_errorName(status));
exit(status);
};
status = U_ZERO_ERROR;
UChar *wordSourceU = new UChar[destCap+1];
ucnv_toUChars(conv,
wordSourceU, // dest,
destCap+1,
wordSourceC,
wordFileSize,
&status);
if (U_FAILURE(status)) {
fprintf(stderr, "ucnv_toUChars: ICU Error \"%s\"\n", u_errorName(status));
exit(status);
};
ucnv_close(conv);
// Get rid of the original file buffer
delete[] wordBufferC;
// Create a MutableTrieDictionary, and loop through all the lines, inserting
// words.
// First, pick a median character.
UChar *current = wordSourceU + (destCap/2);
UChar uc = *current++;
UnicodeSet breaks;
breaks.add(0x000A); // Line Feed
breaks.add(0x000D); // Carriage Return
breaks.add(0x2028); // Line Separator
breaks.add(0x2029); // Paragraph Separator
do {
// Look for line break
while (uc && !breaks.contains(uc)) {
uc = *current++;
}
// Now skip to first non-line-break
while (uc && breaks.contains(uc)) {
uc = *current++;
}
}
while (uc && (breaks.contains(uc) || u_isspace(uc)));
mtd = new MutableTrieDictionary(uc, status);
if (U_FAILURE(status)) {
fprintf(stderr, "new MutableTrieDictionary: ICU Error \"%s\"\n", u_errorName(status));
exit(status);
}
// Now add the words. Words are non-space characters at the beginning of
// lines, and must be at least one UChar. If a word has an associated value,
// the value should follow the word on the same line after a tab character.
current = wordSourceU;
UChar *candidate = current;
uc = *current++;
int32_t length = 0;
int count = 0;
while (uc) {
while (uc && !u_isspace(uc)) {
++length;
uc = *current++;
}
UnicodeString valueString;
UChar candidateValue;
if(uc == 0x0009){ //separator is a tab char, read in number after space
while (uc && u_isspace(uc)) {
uc = *current++;
}
while (uc && !u_isspace(uc)) {
valueString.append(uc);
uc = *current++;
}
}
if (length > 0) {
count++;
if(valueString.length() > 0){
mtd->setValued(TRUE);
uint32_t value = 0;
char* s = new char[valueString.length()];
valueString.extract(0,valueString.length(), s, valueString.length());
int n = sscanf(s, "%ud", &value);
U_ASSERT(n == 1);
U_ASSERT(value >= 0);
mtd->addWord(candidate, length, status, (uint16_t)value);
delete[] s;
} else {
mtd->addWord(candidate, length, status);
}
if (U_FAILURE(status)) {
fprintf(stderr, "MutableTrieDictionary::addWord: ICU Error \"%s\" at line %d in input file\n",
u_errorName(status), count);
exit(status);
}
}
// Find beginning of next line
while (uc && !breaks.contains(uc)) {
uc = *current++;
}
// Find next non-line-breaking character
while (uc && breaks.contains(uc)) {
uc = *current++;
}
candidate = current-1;
length = 0;
}
// Get rid of the Unicode text buffer
delete[] wordSourceU;
}
// Now, create a CompactTrieDictionary from the mutable dictionary
CompactTrieDictionary *ctd = new CompactTrieDictionary(*mtd, status);
if (U_FAILURE(status)) {
fprintf(stderr, "new CompactTrieDictionary: ICU Error \"%s\"\n", u_errorName(status));
exit(status);
}
// Get rid of the MutableTrieDictionary
delete mtd;
//
// Get the binary data from the dictionary.
//
uint32_t outDataSize = ctd->dataSize();
const uint8_t *outData = (const uint8_t *)ctd->data();
//
// Create the output file
//
size_t bytesWritten;
UNewDataMemory *pData;
pData = udata_create(outDir, NULL, outFileName, &(dh.info), copyright, &status);
if(U_FAILURE(status)) {
fprintf(stderr, "genctd: Could not open output file \"%s\", \"%s\"\n",
outFileName, u_errorName(status));
exit(status);
}
// Write the data itself.
udata_writeBlock(pData, outData, outDataSize);
// finish up
bytesWritten = udata_finish(pData, &status);
if(U_FAILURE(status)) {
fprintf(stderr, "genctd: error \"%s\" writing the output file\n", u_errorName(status));
exit(status);
}
if (bytesWritten != outDataSize) {
fprintf(stderr, "Error writing to output file \"%s\"\n", outFileName);
exit(-1);
}
// Get rid of the CompactTrieDictionary
delete ctd;
u_cleanup();
printf("genctd: tool completed successfully.\n");
return 0;
#endif /* #if !UCONFIG_NO_BREAK_ITERATION */
}
//------------------------------------------------------------------------------------------
//
// readFile Read a file into memory, and convert it to Unicode.
//
// Since this is just a demo program, take the simple minded approach
// of always reading the whole file at once. No intelligent buffering
// is done.
//
//------------------------------------------------------------------------------------------
void readFile(const char *name) {
//
// Initialize global file variables
//
fileName = name;
fileLen = 0; // zero length prevents processing in case of errors.
//
// Open the file and determine its size.
//
FILE *file = fopen(name, "rb");
if (file == 0 ) {
fprintf(stderr, "ugrep: Could not open file \"%s\"\n", fileName);
return;
}
fseek(file, 0, SEEK_END);
int rawFileLen = ftell(file);
fseek(file, 0, SEEK_SET);
//
// Read in the file
//
charBuf = (char *)realloc(charBuf, rawFileLen+1); // Need error checking...
int t = fread(charBuf, 1, rawFileLen, file);
if (t != rawFileLen) {
fprintf(stderr, "Error reading file \"%s\"\n", fileName);
fclose(file);
return;
}
charBuf[rawFileLen]=0;
fclose(file);
//
// Look for a Unicode Signature (BOM) in the data
//
int32_t signatureLength;
const char * charDataStart = charBuf;
UErrorCode status = U_ZERO_ERROR;
const char* encoding = ucnv_detectUnicodeSignature(
charDataStart, rawFileLen, &signatureLength, &status);
if (U_FAILURE(status)) {
fprintf(stderr, "ugrep: ICU Error \"%s\" from ucnv_detectUnicodeSignature()\n",
u_errorName(status));
return;
}
if(encoding!=NULL ){
charDataStart += signatureLength;
rawFileLen -= signatureLength;
}
//
// Open a converter to take the file to UTF-16
//
UConverter* conv;
conv = ucnv_open(encoding, &status);
if (U_FAILURE(status)) {
fprintf(stderr, "ugrep: ICU Error \"%s\" from ucnv_open()\n", u_errorName(status));
return;
}
//
// Convert the file data to UChar.
// Preflight first to determine required buffer size.
//
uint32_t destCap = ucnv_toUChars(conv,
NULL, // dest,
0, // destCapacity,
charDataStart,
rawFileLen,
&status);
if (status != U_BUFFER_OVERFLOW_ERROR) {
fprintf(stderr, "ugrep: ucnv_toUChars: ICU Error \"%s\"\n", u_errorName(status));
return;
};
status = U_ZERO_ERROR;
ucharBuf = (UChar *)realloc(ucharBuf, (destCap+1) * sizeof(UChar));
ucnv_toUChars(conv,
ucharBuf, // dest,
destCap+1,
charDataStart,
rawFileLen,
&status);
if (U_FAILURE(status)) {
fprintf(stderr, "ugrep: ucnv_toUChars: ICU Error \"%s\"\n", u_errorName(status));
return;
};
ucnv_close(conv);
//
// Successful conversion. Set the global size variables so that
// the rest of the processing will proceed for this file.
//
fileLen = destCap;
}
UXMLElement *
UXMLParser::parseFile(const char *filename, UErrorCode &errorCode) {
char bytes[4096], charsetBuffer[100];
FileStream *f;
const char *charset, *pb;
UnicodeString src;
UConverter *cnv;
UChar *buffer, *pu;
int32_t fileLength, bytesLength, length, capacity;
UBool flush;
if(U_FAILURE(errorCode)) {
return NULL;
}
f=T_FileStream_open(filename, "rb");
if(f==NULL) {
errorCode=U_FILE_ACCESS_ERROR;
return NULL;
}
bytesLength=T_FileStream_read(f, bytes, (int32_t)sizeof(bytes));
if(bytesLength<(int32_t)sizeof(bytes)) {
// we have already read the entire file
fileLength=bytesLength;
} else {
// get the file length
fileLength=T_FileStream_size(f);
}
/*
* get the charset:
* 1. Unicode signature
* 2. treat as ISO-8859-1 and read XML encoding="charser"
* 3. default to UTF-8
*/
charset=ucnv_detectUnicodeSignature(bytes, bytesLength, NULL, &errorCode);
if(U_SUCCESS(errorCode) && charset!=NULL) {
// open converter according to Unicode signature
cnv=ucnv_open(charset, &errorCode);
} else {
// read as Latin-1 and parse the XML declaration and encoding
cnv=ucnv_open("ISO-8859-1", &errorCode);
if(U_FAILURE(errorCode)) {
// unexpected error opening Latin-1 converter
goto exit;
}
buffer=src.getBuffer(bytesLength);
if(buffer==NULL) {
// unexpected failure to reserve some string capacity
errorCode=U_MEMORY_ALLOCATION_ERROR;
goto exit;
}
pb=bytes;
pu=buffer;
ucnv_toUnicode(
cnv,
&pu, buffer+src.getCapacity(),
&pb, bytes+bytesLength,
NULL, TRUE, &errorCode);
src.releaseBuffer(U_SUCCESS(errorCode) ? (int32_t)(pu-buffer) : 0);
ucnv_close(cnv);
cnv=NULL;
if(U_FAILURE(errorCode)) {
// unexpected error in conversion from Latin-1
src.remove();
goto exit;
}
// parse XML declaration
if(mXMLDecl.reset(src).lookingAt(0, errorCode)) {
int32_t declEnd=mXMLDecl.end(errorCode);
// go beyond <?xml
int32_t pos=src.indexOf((UChar)x_l)+1;
mAttrValue.reset(src);
while(pos<declEnd && mAttrValue.lookingAt(pos, errorCode)) { // loop runs once per attribute on this element.
UnicodeString attName = mAttrValue.group(1, errorCode);
UnicodeString attValue = mAttrValue.group(2, errorCode);
// Trim the quotes from the att value. These are left over from the original regex
// that parsed the attribue, which couldn't conveniently strip them.
attValue.remove(0,1); // one char from the beginning
attValue.truncate(attValue.length()-1); // and one from the end.
if(attName==UNICODE_STRING("encoding", 8)) {
length=attValue.extract(0, 0x7fffffff, charsetBuffer, (int32_t)sizeof(charsetBuffer));
charset=charsetBuffer;
break;
}
pos = mAttrValue.end(2, errorCode);
}
if(charset==NULL) {
// default to UTF-8
charset="UTF-8";
}
cnv=ucnv_open(charset, &errorCode);
}
}
if(U_FAILURE(errorCode)) {
// unable to open the converter
goto exit;
}
// convert the file contents
capacity=fileLength; // estimated capacity
src.getBuffer(capacity);
src.releaseBuffer(0); // zero length
flush=FALSE;
for(;;) {
// convert contents of bytes[bytesLength]
pb=bytes;
for(;;) {
length=src.length();
buffer=src.getBuffer(capacity);
if(buffer==NULL) {
// unexpected failure to reserve some string capacity
errorCode=U_MEMORY_ALLOCATION_ERROR;
goto exit;
}
pu=buffer+length;
ucnv_toUnicode(
cnv, &pu, buffer+src.getCapacity(),
&pb, bytes+bytesLength,
NULL, FALSE, &errorCode);
src.releaseBuffer(U_SUCCESS(errorCode) ? (int32_t)(pu-buffer) : 0);
if(errorCode==U_BUFFER_OVERFLOW_ERROR) {
errorCode=U_ZERO_ERROR;
capacity=(3*src.getCapacity())/2; // increase capacity by 50%
} else {
break;
}
}
if(U_FAILURE(errorCode)) {
break; // conversion error
}
if(flush) {
break; // completely converted the file
}
// read next block
bytesLength=T_FileStream_read(f, bytes, (int32_t)sizeof(bytes));
if(bytesLength==0) {
// reached end of file, convert once more to flush the converter
flush=TRUE;
}
};
exit:
ucnv_close(cnv);
T_FileStream_close(f);
if(U_SUCCESS(errorCode)) {
return parse(src, errorCode);
} else {
return NULL;
}
}
//----------------------------------------------------------------------------
//
// main for genbrk
//
//----------------------------------------------------------------------------
int main(int argc, char **argv) {
UErrorCode status = U_ZERO_ERROR;
const char *ruleFileName;
const char *outFileName;
const char *outDir = NULL;
const char *copyright = NULL;
//
// Pick up and check the command line arguments,
// using the standard ICU tool utils option handling.
//
U_MAIN_INIT_ARGS(argc, argv);
progName = argv[0];
argc=u_parseArgs(argc, argv, sizeof(options)/sizeof(options[0]), options);
if(argc<0) {
// Unrecognized option
fprintf(stderr, "error in command line argument \"%s\"\n", argv[-argc]);
usageAndDie(U_ILLEGAL_ARGUMENT_ERROR);
}
if(options[0].doesOccur || options[1].doesOccur) {
// -? or -h for help.
usageAndDie(0);
}
if (!(options[3].doesOccur && options[4].doesOccur)) {
fprintf(stderr, "rule file and output file must both be specified.\n");
usageAndDie(U_ILLEGAL_ARGUMENT_ERROR);
}
ruleFileName = options[3].value;
outFileName = options[4].value;
if (options[5].doesOccur) {
u_setDataDirectory(options[5].value);
}
/* Initialize ICU */
u_init(&status);
if (U_FAILURE(status)) {
fprintf(stderr, "%s: can not initialize ICU. status = %s\n",
argv[0], u_errorName(status));
exit(1);
}
status = U_ZERO_ERROR;
/* Combine the directory with the file name */
if(options[6].doesOccur) {
outDir = options[6].value;
}
if (options[7].doesOccur) {
copyright = U_COPYRIGHT_STRING;
}
#if UCONFIG_NO_BREAK_ITERATION
UNewDataMemory *pData;
char msg[1024];
/* write message with just the name */
sprintf(msg, "genbrk writes dummy %s because of UCONFIG_NO_BREAK_ITERATION, see uconfig.h", outFileName);
fprintf(stderr, "%s\n", msg);
/* write the dummy data file */
pData = udata_create(outDir, NULL, outFileName, &dummyDataInfo, NULL, &status);
udata_writeBlock(pData, msg, strlen(msg));
udata_finish(pData, &status);
return (int)status;
#else
//
// Read in the rule source file
//
long result;
long ruleFileSize;
FILE *file;
char *ruleBufferC;
file = fopen(ruleFileName, "rb");
if( file == 0 ) {
fprintf(stderr, "Could not open file \"%s\"\n", ruleFileName);
exit(-1);
}
fseek(file, 0, SEEK_END);
ruleFileSize = ftell(file);
fseek(file, 0, SEEK_SET);
ruleBufferC = new char[ruleFileSize+10];
result = (long)fread(ruleBufferC, 1, ruleFileSize, file);
if (result != ruleFileSize) {
fprintf(stderr, "Error reading file \"%s\"\n", ruleFileName);
exit (-1);
}
ruleBufferC[ruleFileSize]=0;
fclose(file);
//
// Look for a Unicode Signature (BOM) on the rule file
//
int32_t signatureLength;
const char * ruleSourceC = ruleBufferC;
const char* encoding = ucnv_detectUnicodeSignature(
ruleSourceC, ruleFileSize, &signatureLength, &status);
if (U_FAILURE(status)) {
exit(status);
}
if(encoding!=NULL ){
ruleSourceC += signatureLength;
ruleFileSize -= signatureLength;
}
//
// Open a converter to take the rule file to UTF-16
//
UConverter* conv;
conv = ucnv_open(encoding, &status);
if (U_FAILURE(status)) {
fprintf(stderr, "ucnv_open: ICU Error \"%s\"\n", u_errorName(status));
exit(status);
}
//
// Convert the rules to UChar.
// Preflight first to determine required buffer size.
//
uint32_t destCap = ucnv_toUChars(conv,
NULL, // dest,
0, // destCapacity,
ruleSourceC,
ruleFileSize,
&status);
if (status != U_BUFFER_OVERFLOW_ERROR) {
fprintf(stderr, "ucnv_toUChars: ICU Error \"%s\"\n", u_errorName(status));
exit(status);
};
status = U_ZERO_ERROR;
UChar *ruleSourceU = new UChar[destCap+1];
ucnv_toUChars(conv,
ruleSourceU, // dest,
destCap+1,
ruleSourceC,
ruleFileSize,
&status);
if (U_FAILURE(status)) {
fprintf(stderr, "ucnv_toUChars: ICU Error \"%s\"\n", u_errorName(status));
exit(status);
};
ucnv_close(conv);
//
// Put the source rules into a UnicodeString
//
UnicodeString ruleSourceS(FALSE, ruleSourceU, destCap);
//
// Create the break iterator from the rules
// This will compile the rules.
//
UParseError parseError;
parseError.line = 0;
parseError.offset = 0;
RuleBasedBreakIterator *bi = new RuleBasedBreakIterator(ruleSourceS, parseError, status);
if (U_FAILURE(status)) {
fprintf(stderr, "createRuleBasedBreakIterator: ICU Error \"%s\" at line %d, column %d\n",
u_errorName(status), (int)parseError.line, (int)parseError.offset);
exit(status);
};
//
// Get the compiled rule data from the break iterator.
//
uint32_t outDataSize;
const uint8_t *outData;
outData = bi->getBinaryRules(outDataSize);
// Copy the data format version numbers from the RBBI data header into the UDataMemory header.
uprv_memcpy(dh.info.formatVersion, ((RBBIDataHeader *)outData)->fFormatVersion, sizeof(dh.info.formatVersion));
//
// Create the output file
//
size_t bytesWritten;
UNewDataMemory *pData;
pData = udata_create(outDir, NULL, outFileName, &(dh.info), copyright, &status);
if(U_FAILURE(status)) {
fprintf(stderr, "genbrk: Could not open output file \"%s\", \"%s\"\n",
outFileName, u_errorName(status));
exit(status);
}
// Write the data itself.
udata_writeBlock(pData, outData, outDataSize);
// finish up
bytesWritten = udata_finish(pData, &status);
if(U_FAILURE(status)) {
fprintf(stderr, "genbrk: error %d writing the output file\n", status);
exit(status);
}
if (bytesWritten != outDataSize) {
fprintf(stderr, "Error writing to output file \"%s\"\n", outFileName);
exit(-1);
}
delete bi;
delete[] ruleSourceU;
delete[] ruleBufferC;
u_cleanup();
printf("genbrk: tool completed successfully.\n");
return 0;
#endif /* #if !UCONFIG_NO_BREAK_ITERATION */
}