// © 2016 and later: Unicode, Inc. and others. // License & terms of use: http://www.unicode.org/copyright.html /* **************************************************************************** * Copyright (c) 2005-2016, International Business Machines Corporation and * * others. All Rights Reserved. * **************************************************************************** */ #include "unicode/utypes.h" #include "unicode/ucsdet.h" #include "unicode/ucnv.h" #include "unicode/ustring.h" #include "cintltst.h" #include "cmemory.h" #include #include #define NEW_ARRAY(type,count) (type *) malloc((count) * sizeof(type)) #define DELETE_ARRAY(array) free(array) static void TestConstruction(void); static void TestUTF8(void); static void TestUTF16(void); static void TestC1Bytes(void); static void TestInputFilter(void); static void TestChaining(void); static void TestBufferOverflow(void); static void TestIBM424(void); static void TestIBM420(void); void addUCsdetTest(TestNode** root); void addUCsdetTest(TestNode** root) { addTest(root, &TestConstruction, "ucsdetst/TestConstruction"); addTest(root, &TestUTF8, "ucsdetst/TestUTF8"); addTest(root, &TestUTF16, "ucsdetst/TestUTF16"); addTest(root, &TestC1Bytes, "ucsdetst/TestC1Bytes"); addTest(root, &TestInputFilter, "ucsdetst/TestInputFilter"); addTest(root, &TestChaining, "ucsdetst/TestErrorChaining"); addTest(root, &TestBufferOverflow, "ucsdetst/TestBufferOverflow"); #if !UCONFIG_NO_LEGACY_CONVERSION addTest(root, &TestIBM424, "ucsdetst/TestIBM424"); addTest(root, &TestIBM420, "ucsdetst/TestIBM420"); #endif } static int32_t preflight(const UChar *src, int32_t length, UConverter *cnv) { UErrorCode status; char buffer[1024]; char *dest, *destLimit = buffer + sizeof(buffer); const UChar *srcLimit = src + length; int32_t result = 0; do { dest = buffer; status = U_ZERO_ERROR; ucnv_fromUnicode(cnv, &dest, destLimit, &src, srcLimit, 0, TRUE, &status); result += (int32_t) (dest - buffer); } while (status == U_BUFFER_OVERFLOW_ERROR); return result; } static char *extractBytes(const UChar *src, int32_t length, const char *codepage, int32_t *byteLength) { UErrorCode status = U_ZERO_ERROR; UConverter *cnv = ucnv_open(codepage, &status); int32_t byteCount = preflight(src, length, cnv); const UChar *srcLimit = src + length; char *bytes = NEW_ARRAY(char, byteCount + 1); char *dest = bytes, *destLimit = bytes + byteCount + 1; ucnv_fromUnicode(cnv, &dest, destLimit, &src, srcLimit, 0, TRUE, &status); ucnv_close(cnv); *byteLength = byteCount; return bytes; } static void freeBytes(char *bytes) { DELETE_ARRAY(bytes); } static void TestConstruction(void) { UErrorCode status = U_ZERO_ERROR; UCharsetDetector *csd = ucsdet_open(&status); UEnumeration *e = ucsdet_getAllDetectableCharsets(csd, &status); const char *name; int32_t count = uenum_count(e, &status); int32_t i, length; for(i = 0; i < count; i += 1) { name = uenum_next(e, &length, &status); if(name == NULL || length <= 0) { log_err("ucsdet_getAllDetectableCharsets() returned a null or empty name!\n"); } } /* one past the list of all names must return NULL */ name = uenum_next(e, &length, &status); if(name != NULL || length != 0 || U_FAILURE(status)) { log_err("ucsdet_getAllDetectableCharsets(past the list) returned a non-null name!\n"); } uenum_close(e); ucsdet_close(csd); } static void TestUTF8(void) { UErrorCode status = U_ZERO_ERROR; static const char ss[] = "This is a string with some non-ascii characters that will " "be converted to UTF-8, then shoved through the detection process. " "\\u0391\\u0392\\u0393\\u0394\\u0395" "Sure would be nice if our source could contain Unicode directly!"; int32_t byteLength = 0, sLength = 0, dLength = 0; UChar s[sizeof(ss)]; char *bytes; UCharsetDetector *csd = ucsdet_open(&status); const UCharsetMatch *match; UChar detected[sizeof(ss)]; sLength = u_unescape(ss, s, sizeof(ss)); bytes = extractBytes(s, sLength, "UTF-8", &byteLength); ucsdet_setText(csd, bytes, byteLength, &status); if (U_FAILURE(status)) { log_err("status is %s\n", u_errorName(status)); goto bail; } match = ucsdet_detect(csd, &status); if (match == NULL) { log_err("Detection failure for UTF-8: got no matches.\n"); goto bail; } dLength = ucsdet_getUChars(match, detected, sLength, &status); if (u_strCompare(detected, dLength, s, sLength, FALSE) != 0) { log_err("Round-trip test failed!\n"); } ucsdet_setDeclaredEncoding(csd, "UTF-8", 5, &status); /* for coverage */ bail: freeBytes(bytes); ucsdet_close(csd); } static void TestUTF16(void) { UErrorCode status = U_ZERO_ERROR; /* Notice the BOM on the start of this string */ static const UChar chars[] = { 0xFEFF, 0x0623, 0x0648, 0x0631, 0x0648, 0x0628, 0x0627, 0x002C, 0x0020, 0x0628, 0x0631, 0x0645, 0x062c, 0x064a, 0x0627, 0x062a, 0x0020, 0x0627, 0x0644, 0x062d, 0x0627, 0x0633, 0x0648, 0x0628, 0x0020, 0x002b, 0x0020, 0x0627, 0x0646, 0x062a, 0x0631, 0x0646, 0x064a, 0x062a, 0x0000}; int32_t beLength = 0, leLength = 0, cLength = UPRV_LENGTHOF(chars); char *beBytes = extractBytes(chars, cLength, "UTF-16BE", &beLength); char *leBytes = extractBytes(chars, cLength, "UTF-16LE", &leLength); UCharsetDetector *csd = ucsdet_open(&status); const UCharsetMatch *match; const char *name; int32_t conf; ucsdet_setText(csd, beBytes, beLength, &status); match = ucsdet_detect(csd, &status); if (match == NULL) { log_err("Encoding detection failure for UTF-16BE: got no matches.\n"); goto try_le; } name = ucsdet_getName(match, &status); conf = ucsdet_getConfidence(match, &status); if (strcmp(name, "UTF-16BE") != 0) { log_err("Encoding detection failure for UTF-16BE: got %s\n", name); } if (conf != 100) { log_err("Did not get 100%% confidence for UTF-16BE: got %d\n", conf); } try_le: ucsdet_setText(csd, leBytes, leLength, &status); match = ucsdet_detect(csd, &status); if (match == NULL) { log_err("Encoding detection failure for UTF-16LE: got no matches.\n"); goto bail; } name = ucsdet_getName(match, &status); conf = ucsdet_getConfidence(match, &status); if (strcmp(name, "UTF-16LE") != 0) { log_err("Encoding detection failure for UTF-16LE: got %s\n", name); } if (conf != 100) { log_err("Did not get 100%% confidence for UTF-16LE: got %d\n", conf); } bail: freeBytes(leBytes); freeBytes(beBytes); ucsdet_close(csd); } static void TestC1Bytes(void) { #if !UCONFIG_NO_LEGACY_CONVERSION UErrorCode status = U_ZERO_ERROR; static const char ssISO[] = "This is a small sample of some English text. Just enough to be sure that it detects correctly."; static const char ssWindows[] = "This is another small sample of some English text. Just enough to be sure that it detects correctly. It also includes some \\u201CC1\\u201D bytes."; int32_t sISOLength = 0, sWindowsLength = 0; UChar sISO[sizeof(ssISO)]; UChar sWindows[sizeof(ssWindows)]; int32_t lISO = 0, lWindows = 0; char *bISO; char *bWindows; UCharsetDetector *csd = ucsdet_open(&status); const UCharsetMatch *match; const char *name; sISOLength = u_unescape(ssISO, sISO, sizeof(ssISO)); sWindowsLength = u_unescape(ssWindows, sWindows, sizeof(ssWindows)); bISO = extractBytes(sISO, sISOLength, "ISO-8859-1", &lISO); bWindows = extractBytes(sWindows, sWindowsLength, "windows-1252", &lWindows); ucsdet_setText(csd, bWindows, lWindows, &status); match = ucsdet_detect(csd, &status); if (match == NULL) { log_err("English test with C1 bytes got no matches.\n"); goto bail; } name = ucsdet_getName(match, &status); if (strcmp(name, "windows-1252") != 0) { log_data_err("English text with C1 bytes does not detect as windows-1252, but as %s. (Are you missing data?)\n", name); } ucsdet_setText(csd, bISO, lISO, &status); match = ucsdet_detect(csd, &status); if (match == NULL) { log_err("English text without C1 bytes got no matches.\n"); goto bail; } name = ucsdet_getName(match, &status); if (strcmp(name, "ISO-8859-1") != 0) { log_err("English text without C1 bytes does not detect as ISO-8859-1, but as %s\n", name); } bail: freeBytes(bWindows); freeBytes(bISO); ucsdet_close(csd); #endif } static void TestInputFilter(void) { UErrorCode status = U_ZERO_ERROR; static const char ss[] = " Un tr\\u00E8s petit peu de Fran\\u00E7ais. "; int32_t sLength = 0; UChar s[sizeof(ss)]; int32_t byteLength = 0; char *bytes; UCharsetDetector *csd = ucsdet_open(&status); const UCharsetMatch *match; const char *lang, *name; sLength = u_unescape(ss, s, sizeof(ss)); bytes = extractBytes(s, sLength, "ISO-8859-1", &byteLength); ucsdet_enableInputFilter(csd, TRUE); if (!ucsdet_isInputFilterEnabled(csd)) { log_err("ucsdet_enableInputFilter(csd, TRUE) did not enable input filter!\n"); } ucsdet_setText(csd, bytes, byteLength, &status); match = ucsdet_detect(csd, &status); if (match == NULL) { log_err("Turning on the input filter resulted in no matches.\n"); goto turn_off; } name = ucsdet_getName(match, &status); if (name == NULL || strcmp(name, "ISO-8859-1") != 0) { log_err("Turning on the input filter resulted in %s rather than ISO-8859-1\n", name); } else { lang = ucsdet_getLanguage(match, &status); if (lang == NULL || strcmp(lang, "fr") != 0) { log_err("Input filter did not strip markup!\n"); } } turn_off: ucsdet_enableInputFilter(csd, FALSE); ucsdet_setText(csd, bytes, byteLength, &status); match = ucsdet_detect(csd, &status); if (match == NULL) { log_err("Turning off the input filter resulted in no matches.\n"); goto bail; } name = ucsdet_getName(match, &status); if (name == NULL || strcmp(name, "ISO-8859-1") != 0) { log_err("Turning off the input filter resulted in %s rather than ISO-8859-1\n", name); } else { lang = ucsdet_getLanguage(match, &status); if (lang == NULL || strcmp(lang, "en") != 0) { log_err("Unfiltered input did not detect as English!\n"); } } bail: freeBytes(bytes); ucsdet_close(csd); } static void TestChaining(void) { UErrorCode status = U_USELESS_COLLATOR_ERROR; ucsdet_open(&status); ucsdet_setText(NULL, NULL, 0, &status); ucsdet_getName(NULL, &status); ucsdet_getConfidence(NULL, &status); ucsdet_getLanguage(NULL, &status); ucsdet_detect(NULL, &status); ucsdet_setDeclaredEncoding(NULL, NULL, 0, &status); ucsdet_detectAll(NULL, NULL, &status); ucsdet_getUChars(NULL, NULL, 0, &status); ucsdet_getUChars(NULL, NULL, 0, &status); ucsdet_close(NULL); /* All of this code should have done nothing. */ if (status != U_USELESS_COLLATOR_ERROR) { log_err("Status got changed to %s\n", u_errorName(status)); } } static void TestBufferOverflow(void) { UErrorCode status = U_ZERO_ERROR; static const char *testStrings[] = { "\x80\x20\x54\x68\x69\x73\x20\x69\x73\x20\x45\x6E\x67\x6C\x69\x73\x68\x20\x1b", /* A partial ISO-2022 shift state at the end */ "\x80\x20\x54\x68\x69\x73\x20\x69\x73\x20\x45\x6E\x67\x6C\x69\x73\x68\x20\x1b\x24", /* A partial ISO-2022 shift state at the end */ "\x80\x20\x54\x68\x69\x73\x20\x69\x73\x20\x45\x6E\x67\x6C\x69\x73\x68\x20\x1b\x24\x28", /* A partial ISO-2022 shift state at the end */ "\x80\x20\x54\x68\x69\x73\x20\x69\x73\x20\x45\x6E\x67\x6C\x69\x73\x68\x20\x1b\x24\x28\x44", /* A complete ISO-2022 shift state at the end with a bad one at the start */ "\x1b\x24\x28\x44", /* A complete ISO-2022 shift state at the end */ "\xa1", /* Could be a single byte shift-jis at the end */ "\x74\x68\xa1", /* Could be a single byte shift-jis at the end */ "\x74\x68\x65\xa1" /* Could be a single byte shift-jis at the end, but now we have English creeping in. */ }; static const char *testResults[] = { "windows-1252", "windows-1252", "windows-1252", "windows-1252", "ISO-2022-JP", NULL, NULL, "ISO-8859-1" }; int32_t idx = 0; UCharsetDetector *csd = ucsdet_open(&status); const UCharsetMatch *match; ucsdet_setDeclaredEncoding(csd, "ISO-2022-JP", -1, &status); if (U_FAILURE(status)) { log_err("Couldn't open detector. %s\n", u_errorName(status)); goto bail; } for (idx = 0; idx < UPRV_LENGTHOF(testStrings); idx++) { ucsdet_setText(csd, testStrings[idx], -1, &status); match = ucsdet_detect(csd, &status); if (match == NULL) { if (testResults[idx] != NULL) { log_err("Unexpectedly got no results at index %d.\n", idx); } else { log_verbose("Got no result as expected at index %d.\n", idx); } continue; } if (testResults[idx] == NULL || strcmp(ucsdet_getName(match, &status), testResults[idx]) != 0) { log_err("Unexpectedly got %s instead of %s at index %d with confidence %d.\n", ucsdet_getName(match, &status), testResults[idx], idx, ucsdet_getConfidence(match, &status)); goto bail; } } bail: ucsdet_close(csd); } static void TestIBM424(void) { UErrorCode status = U_ZERO_ERROR; static const UChar chars[] = { 0x05D4, 0x05E4, 0x05E8, 0x05E7, 0x05DC, 0x05D9, 0x05D8, 0x0020, 0x05D4, 0x05E6, 0x05D1, 0x05D0, 0x05D9, 0x0020, 0x05D4, 0x05E8, 0x05D0, 0x05E9, 0x05D9, 0x002C, 0x0020, 0x05EA, 0x05EA, 0x0020, 0x05D0, 0x05DC, 0x05D5, 0x05E3, 0x0020, 0x05D0, 0x05D1, 0x05D9, 0x05D7, 0x05D9, 0x0020, 0x05DE, 0x05E0, 0x05D3, 0x05DC, 0x05D1, 0x05DC, 0x05D9, 0x05D8, 0x002C, 0x0020, 0x05D4, 0x05D5, 0x05E8, 0x05D4, 0x0020, 0x05E2, 0x05DC, 0x0020, 0x05E4, 0x05EA, 0x05D9, 0x05D7, 0x05EA, 0x0020, 0x05D7, 0x05E7, 0x05D9, 0x05E8, 0x05EA, 0x0020, 0x05DE, 0x05E6, 0x0022, 0x05D7, 0x0020, 0x05D1, 0x05E2, 0x05E7, 0x05D1, 0x05D5, 0x05EA, 0x0020, 0x05E2, 0x05D3, 0x05D5, 0x05D9, 0x05D5, 0x05EA, 0x0020, 0x05D7, 0x05D9, 0x05D9, 0x05DC, 0x05D9, 0x0020, 0x05E6, 0x05D4, 0x0022, 0x05DC, 0x0020, 0x05DE, 0x05DE, 0x05D1, 0x05E6, 0x05E2, 0x0020, 0x05E2, 0x05D5, 0x05E4, 0x05E8, 0x05EA, 0x0020, 0x05D9, 0x05E6, 0x05D5, 0x05E7, 0x05D4, 0x0020, 0x05D1, 0x002B, 0x0020, 0x05E8, 0x05E6, 0x05D5, 0x05E2, 0x05EA, 0x0020, 0x05E2, 0x05D6, 0x05D4, 0x002E, 0x0020, 0x05DC, 0x05D3, 0x05D1, 0x05E8, 0x05D9, 0x0020, 0x05D4, 0x05E4, 0x05E6, 0x0022, 0x05E8, 0x002C, 0x0020, 0x05DE, 0x05D4, 0x05E2, 0x05D3, 0x05D5, 0x05D9, 0x05D5, 0x05EA, 0x0020, 0x05E2, 0x05D5, 0x05DC, 0x05D4, 0x0020, 0x05EA, 0x05DE, 0x05D5, 0x05E0, 0x05D4, 0x0020, 0x05E9, 0x05DC, 0x0020, 0x0022, 0x05D4, 0x05EA, 0x05E0, 0x05D4, 0x05D2, 0x05D5, 0x05EA, 0x0020, 0x05E4, 0x05E1, 0x05D5, 0x05DC, 0x05D4, 0x0020, 0x05DC, 0x05DB, 0x05D0, 0x05D5, 0x05E8, 0x05D4, 0x0020, 0x05E9, 0x05DC, 0x0020, 0x05D7, 0x05D9, 0x05D9, 0x05DC, 0x05D9, 0x05DD, 0x0020, 0x05D1, 0x05DE, 0x05D4, 0x05DC, 0x05DA, 0x0020, 0x05DE, 0x05D1, 0x05E6, 0x05E2, 0x0020, 0x05E2, 0x05D5, 0x05E4, 0x05E8, 0x05EA, 0x0020, 0x05D9, 0x05E6, 0x05D5, 0x05E7, 0x05D4, 0x0022, 0x002E, 0x0020, 0x05DE, 0x05E0, 0x05D3, 0x05DC, 0x05D1, 0x05DC, 0x05D9, 0x05D8, 0x0020, 0x05E7, 0x05D9, 0x05D1, 0x05DC, 0x0020, 0x05D0, 0x05EA, 0x0020, 0x05D4, 0x05D7, 0x05DC, 0x05D8, 0x05EA, 0x05D5, 0x0020, 0x05DC, 0x05D0, 0x05D7, 0x05E8, 0x0020, 0x05E9, 0x05E2, 0x05D9, 0x05D9, 0x05DF, 0x0020, 0x05D1, 0x05EA, 0x05DE, 0x05DC, 0x05D9, 0x05DC, 0x0020, 0x05D4, 0x05E2, 0x05D3, 0x05D5, 0x05D9, 0x05D5, 0x05EA, 0x0000 }; static const UChar chars_reverse[] = { 0x05EA, 0x05D5, 0x05D9, 0x05D5, 0x05D3, 0x05E2, 0x05D4, 0x0020, 0x05DC, 0x05D9, 0x05DC, 0x05DE, 0x05EA, 0x05D1, 0x0020, 0x05DF, 0x05D9, 0x05D9, 0x05E2, 0x05E9, 0x0020, 0x05E8, 0x05D7, 0x05D0, 0x05DC, 0x0020, 0x05D5, 0x05EA, 0x05D8, 0x05DC, 0x05D7, 0x05D4, 0x0020, 0x05EA, 0x05D0, 0x0020, 0x05DC, 0x05D1, 0x05D9, 0x05E7, 0x0020, 0x05D8, 0x05D9, 0x05DC, 0x05D1, 0x05DC, 0x05D3, 0x05E0, 0x05DE, 0x0020, 0x002E, 0x0022, 0x05D4, 0x05E7, 0x05D5, 0x05E6, 0x05D9, 0x0020, 0x05EA, 0x05E8, 0x05E4, 0x05D5, 0x05E2, 0x0020, 0x05E2, 0x05E6, 0x05D1, 0x05DE, 0x0020, 0x05DA, 0x05DC, 0x05D4, 0x05DE, 0x05D1, 0x0020, 0x05DD, 0x05D9, 0x05DC, 0x05D9, 0x05D9, 0x05D7, 0x0020, 0x05DC, 0x05E9, 0x0020, 0x05D4, 0x05E8, 0x05D5, 0x05D0, 0x05DB, 0x05DC, 0x0020, 0x05D4, 0x05DC, 0x05D5, 0x05E1, 0x05E4, 0x0020, 0x05EA, 0x05D5, 0x05D2, 0x05D4, 0x05E0, 0x05EA, 0x05D4, 0x0022, 0x0020, 0x05DC, 0x05E9, 0x0020, 0x05D4, 0x05E0, 0x05D5, 0x05DE, 0x05EA, 0x0020, 0x05D4, 0x05DC, 0x05D5, 0x05E2, 0x0020, 0x05EA, 0x05D5, 0x05D9, 0x05D5, 0x05D3, 0x05E2, 0x05D4, 0x05DE, 0x0020, 0x002C, 0x05E8, 0x0022, 0x05E6, 0x05E4, 0x05D4, 0x0020, 0x05D9, 0x05E8, 0x05D1, 0x05D3, 0x05DC, 0x0020, 0x002E, 0x05D4, 0x05D6, 0x05E2, 0x0020, 0x05EA, 0x05E2, 0x05D5, 0x05E6, 0x05E8, 0x0020, 0x002B, 0x05D1, 0x0020, 0x05D4, 0x05E7, 0x05D5, 0x05E6, 0x05D9, 0x0020, 0x05EA, 0x05E8, 0x05E4, 0x05D5, 0x05E2, 0x0020, 0x05E2, 0x05E6, 0x05D1, 0x05DE, 0x05DE, 0x0020, 0x05DC, 0x0022, 0x05D4, 0x05E6, 0x0020, 0x05D9, 0x05DC, 0x05D9, 0x05D9, 0x05D7, 0x0020, 0x05EA, 0x05D5, 0x05D9, 0x05D5, 0x05D3, 0x05E2, 0x0020, 0x05EA, 0x05D5, 0x05D1, 0x05E7, 0x05E2, 0x05D1, 0x0020, 0x05D7, 0x0022, 0x05E6, 0x05DE, 0x0020, 0x05EA, 0x05E8, 0x05D9, 0x05E7, 0x05D7, 0x0020, 0x05EA, 0x05D7, 0x05D9, 0x05EA, 0x05E4, 0x0020, 0x05DC, 0x05E2, 0x0020, 0x05D4, 0x05E8, 0x05D5, 0x05D4, 0x0020, 0x002C, 0x05D8, 0x05D9, 0x05DC, 0x05D1, 0x05DC, 0x05D3, 0x05E0, 0x05DE, 0x0020, 0x05D9, 0x05D7, 0x05D9, 0x05D1, 0x05D0, 0x0020, 0x05E3, 0x05D5, 0x05DC, 0x05D0, 0x0020, 0x05EA, 0x05EA, 0x0020, 0x002C, 0x05D9, 0x05E9, 0x05D0, 0x05E8, 0x05D4, 0x0020, 0x05D9, 0x05D0, 0x05D1, 0x05E6, 0x05D4, 0x0020, 0x05D8, 0x05D9, 0x05DC, 0x05E7, 0x05E8, 0x05E4, 0x05D4, 0x0000 }; int32_t bLength = 0, brLength = 0, cLength = UPRV_LENGTHOF(chars), crLength = UPRV_LENGTHOF(chars_reverse); char *bytes = extractBytes(chars, cLength, "IBM424", &bLength); char *bytes_r = extractBytes(chars_reverse, crLength, "IBM424", &brLength); UCharsetDetector *csd = ucsdet_open(&status); const UCharsetMatch *match; const char *name; ucsdet_setText(csd, bytes, bLength, &status); match = ucsdet_detect(csd, &status); if (match == NULL) { log_err("Encoding detection failure for IBM424_rtl: got no matches.\n"); goto bail; } name = ucsdet_getName(match, &status); if (strcmp(name, "IBM424_rtl") != 0) { log_data_err("Encoding detection failure for IBM424_rtl: got %s. (Are you missing data?)\n", name); } ucsdet_setText(csd, bytes_r, brLength, &status); match = ucsdet_detect(csd, &status); if (match == NULL) { log_err("Encoding detection failure for IBM424_ltr: got no matches.\n"); goto bail; } name = ucsdet_getName(match, &status); if (strcmp(name, "IBM424_ltr") != 0) { log_data_err("Encoding detection failure for IBM424_ltr: got %s. (Are you missing data?)\n", name); } bail: freeBytes(bytes); freeBytes(bytes_r); ucsdet_close(csd); } static void TestIBM420(void) { UErrorCode status = U_ZERO_ERROR; static const UChar chars[] = { 0x0648, 0x064F, 0x0636, 0x0639, 0x062A, 0x0020, 0x0648, 0x0646, 0x064F, 0x0641, 0x0630, 0x062A, 0x0020, 0x0628, 0x0631, 0x0627, 0x0645, 0x062C, 0x0020, 0x062A, 0x0623, 0x0645, 0x064A, 0x0646, 0x0020, 0x0639, 0x062F, 0x064A, 0x062F, 0x0629, 0x0020, 0x0641, 0x064A, 0x0020, 0x0645, 0x0624, 0x0633, 0x0633, 0x0629, 0x0020, 0x0627, 0x0644, 0x062A, 0x0623, 0x0645, 0x064A, 0x0646, 0x0020, 0x0627, 0x0644, 0x0648, 0x0637, 0x0646, 0x064A, 0x002C, 0x0020, 0x0645, 0x0639, 0x0020, 0x0645, 0x0644, 0x0627, 0x0626, 0x0645, 0x062A, 0x0647, 0x0627, 0x0020, 0x062F, 0x0627, 0x0626, 0x0645, 0x0627, 0x064B, 0x0020, 0x0644, 0x0644, 0x0627, 0x062D, 0x062A, 0x064A, 0x0627, 0x062C, 0x0627, 0x062A, 0x0020, 0x0627, 0x0644, 0x0645, 0x062A, 0x063A, 0x064A, 0x0631, 0x0629, 0x0020, 0x0644, 0x0644, 0x0645, 0x062C, 0x062A, 0x0645, 0x0639, 0x0020, 0x0648, 0x0644, 0x0644, 0x062F, 0x0648, 0x0644, 0x0629, 0x002E, 0x0020, 0x062A, 0x0648, 0x0633, 0x0639, 0x062A, 0x0020, 0x0648, 0x062A, 0x0637, 0x0648, 0x0631, 0x062A, 0x0020, 0x0627, 0x0644, 0x0645, 0x0624, 0x0633, 0x0633, 0x0629, 0x0020, 0x0628, 0x0647, 0x062F, 0x0641, 0x0020, 0x0636, 0x0645, 0x0627, 0x0646, 0x0020, 0x0634, 0x0628, 0x0643, 0x0629, 0x0020, 0x0623, 0x0645, 0x0627, 0x0646, 0x0020, 0x0644, 0x0633, 0x0643, 0x0627, 0x0646, 0x0020, 0x062F, 0x0648, 0x0644, 0x0629, 0x0020, 0x0627, 0x0633, 0x0631, 0x0627, 0x0626, 0x064A, 0x0644, 0x0020, 0x0628, 0x0648, 0x062C, 0x0647, 0x0020, 0x0627, 0x0644, 0x0645, 0x062E, 0x0627, 0x0637, 0x0631, 0x0020, 0x0627, 0x0644, 0x0627, 0x0642, 0x062A, 0x0635, 0x0627, 0x062F, 0x064A, 0x0629, 0x0020, 0x0648, 0x0627, 0x0644, 0x0627, 0x062C, 0x062A, 0x0645, 0x0627, 0x0639, 0x064A, 0x0629, 0x002E, 0x0000 }; static const UChar chars_reverse[] = { 0x002E, 0x0629, 0x064A, 0x0639, 0x0627, 0x0645, 0x062A, 0x062C, 0x0627, 0x0644, 0x0627, 0x0648, 0x0020, 0x0629, 0x064A, 0x062F, 0x0627, 0x0635, 0x062A, 0x0642, 0x0627, 0x0644, 0x0627, 0x0020, 0x0631, 0x0637, 0x0627, 0x062E, 0x0645, 0x0644, 0x0627, 0x0020, 0x0647, 0x062C, 0x0648, 0x0628, 0x0020, 0x0644, 0x064A, 0x0626, 0x0627, 0x0631, 0x0633, 0x0627, 0x0020, 0x0629, 0x0644, 0x0648, 0x062F, 0x0020, 0x0646, 0x0627, 0x0643, 0x0633, 0x0644, 0x0020, 0x0646, 0x0627, 0x0645, 0x0623, 0x0020, 0x0629, 0x0643, 0x0628, 0x0634, 0x0020, 0x0646, 0x0627, 0x0645, 0x0636, 0x0020, 0x0641, 0x062F, 0x0647, 0x0628, 0x0020, 0x0629, 0x0633, 0x0633, 0x0624, 0x0645, 0x0644, 0x0627, 0x0020, 0x062A, 0x0631, 0x0648, 0x0637, 0x062A, 0x0648, 0x0020, 0x062A, 0x0639, 0x0633, 0x0648, 0x062A, 0x0020, 0x002E, 0x0629, 0x0644, 0x0648, 0x062F, 0x0644, 0x0644, 0x0648, 0x0020, 0x0639, 0x0645, 0x062A, 0x062C, 0x0645, 0x0644, 0x0644, 0x0020, 0x0629, 0x0631, 0x064A, 0x063A, 0x062A, 0x0645, 0x0644, 0x0627, 0x0020, 0x062A, 0x0627, 0x062C, 0x0627, 0x064A, 0x062A, 0x062D, 0x0627, 0x0644, 0x0644, 0x0020, 0x064B, 0x0627, 0x0645, 0x0626, 0x0627, 0x062F, 0x0020, 0x0627, 0x0647, 0x062A, 0x0645, 0x0626, 0x0627, 0x0644, 0x0645, 0x0020, 0x0639, 0x0645, 0x0020, 0x002C, 0x064A, 0x0646, 0x0637, 0x0648, 0x0644, 0x0627, 0x0020, 0x0646, 0x064A, 0x0645, 0x0623, 0x062A, 0x0644, 0x0627, 0x0020, 0x0629, 0x0633, 0x0633, 0x0624, 0x0645, 0x0020, 0x064A, 0x0641, 0x0020, 0x0629, 0x062F, 0x064A, 0x062F, 0x0639, 0x0020, 0x0646, 0x064A, 0x0645, 0x0623, 0x062A, 0x0020, 0x062C, 0x0645, 0x0627, 0x0631, 0x0628, 0x0020, 0x062A, 0x0630, 0x0641, 0x064F, 0x0646, 0x0648, 0x0020, 0x062A, 0x0639, 0x0636, 0x064F, 0x0648, 0x0000, }; int32_t bLength = 0, brLength = 0, cLength = UPRV_LENGTHOF(chars), crLength = UPRV_LENGTHOF(chars_reverse); char *bytes = extractBytes(chars, cLength, "IBM420", &bLength); char *bytes_r = extractBytes(chars_reverse, crLength, "IBM420", &brLength); UCharsetDetector *csd = ucsdet_open(&status); const UCharsetMatch *match; const char *name; ucsdet_setText(csd, bytes, bLength, &status); match = ucsdet_detect(csd, &status); if (match == NULL) { log_err("Encoding detection failure for IBM420_rtl: got no matches.\n"); goto bail; } name = ucsdet_getName(match, &status); if (strcmp(name, "IBM420_rtl") != 0) { log_data_err("Encoding detection failure for IBM420_rtl: got %s. (Are you missing data?)\n", name); } ucsdet_setText(csd, bytes_r, brLength, &status); match = ucsdet_detect(csd, &status); if (match == NULL) { log_err("Encoding detection failure for IBM420_ltr: got no matches.\n"); goto bail; } name = ucsdet_getName(match, &status); if (strcmp(name, "IBM420_ltr") != 0) { log_data_err("Encoding detection failure for IBM420_ltr: got %s. (Are you missing data?)\n", name); } bail: freeBytes(bytes); freeBytes(bytes_r); ucsdet_close(csd); }