blob: 987715ae650048390f9c0da6c9cb376e5cb62b18 [file] [log] [blame]
/********************************************************************
* COPYRIGHT:
* Copyright (c) 1998-2014, International Business Machines Corporation and
* others. All Rights Reserved.
********************************************************************/
/*
* File utf8tst.c
*
* Modification History:
*
* Date Name Description
* 07/24/2000 Madhu Creation
*******************************************************************************
*/
#include "unicode/utypes.h"
#include "unicode/utf8.h"
#include "cmemory.h"
#include "cintltst.h"
/* lenient UTF-8 ------------------------------------------------------------ */
/*
* Lenient UTF-8 differs from conformant UTF-8 in that it allows surrogate
* code points with their "natural" encoding.
* Effectively, this allows a mix of UTF-8 and CESU-8 as well as encodings of
* single surrogates.
*
* This is not conformant with UTF-8.
*
* Supplementary code points may be encoded as pairs of 3-byte sequences, but
* the macros below do not attempt to assemble such pairs.
*/
#define L8_NEXT(s, i, length, c) { \
(c)=(uint8_t)(s)[(i)++]; \
if((c)>=0x80) { \
if(U8_IS_LEAD(c)) { \
(c)=utf8_nextCharSafeBody((const uint8_t *)s, &(i), (int32_t)(length), c, -2); \
} else { \
(c)=U_SENTINEL; \
} \
} \
}
#define L8_PREV(s, start, i, c) { \
(c)=(uint8_t)(s)[--(i)]; \
if((c)>=0x80) { \
if((c)<=0xbf) { \
(c)=utf8_prevCharSafeBody((const uint8_t *)s, start, &(i), c, -2); \
} else { \
(c)=U_SENTINEL; \
} \
} \
}
/* -------------------------------------------------------------------------- */
static void printUChars(const uint8_t *uchars, int16_t len);
static void TestCodeUnitValues(void);
static void TestCharLength(void);
static void TestGetChar(void);
static void TestNextPrevChar(void);
static void TestNulTerminated(void);
static void TestNextPrevNonCharacters(void);
static void TestNextPrevCharUnsafe(void);
static void TestFwdBack(void);
static void TestFwdBackUnsafe(void);
static void TestSetChar(void);
static void TestSetCharUnsafe(void);
static void TestAppendChar(void);
static void TestAppend(void);
static void TestSurrogates(void);
void addUTF8Test(TestNode** root);
void
addUTF8Test(TestNode** root)
{
addTest(root, &TestCodeUnitValues, "utf8tst/TestCodeUnitValues");
addTest(root, &TestCharLength, "utf8tst/TestCharLength");
addTest(root, &TestGetChar, "utf8tst/TestGetChar");
addTest(root, &TestNextPrevChar, "utf8tst/TestNextPrevChar");
addTest(root, &TestNulTerminated, "utf8tst/TestNulTerminated");
addTest(root, &TestNextPrevNonCharacters, "utf8tst/TestNextPrevNonCharacters");
addTest(root, &TestNextPrevCharUnsafe, "utf8tst/TestNextPrevCharUnsafe");
addTest(root, &TestFwdBack, "utf8tst/TestFwdBack");
addTest(root, &TestFwdBackUnsafe, "utf8tst/TestFwdBackUnsafe");
addTest(root, &TestSetChar, "utf8tst/TestSetChar");
addTest(root, &TestSetCharUnsafe, "utf8tst/TestSetCharUnsafe");
addTest(root, &TestAppendChar, "utf8tst/TestAppendChar");
addTest(root, &TestAppend, "utf8tst/TestAppend");
addTest(root, &TestSurrogates, "utf8tst/TestSurrogates");
}
static void TestCodeUnitValues()
{
static const uint8_t codeunit[]={0x00, 0x65, 0x7e, 0x7f, 0xc0, 0xc4, 0xf0, 0xfd, 0x80, 0x81, 0xbc, 0xbe,};
int16_t i;
for(i=0; i<UPRV_LENGTHOF(codeunit); i++){
uint8_t c=codeunit[i];
log_verbose("Testing code unit value of %x\n", c);
if(i<4){
if(!UTF8_IS_SINGLE(c) || UTF8_IS_LEAD(c) || UTF8_IS_TRAIL(c) || !U8_IS_SINGLE(c) || U8_IS_LEAD(c) || U8_IS_TRAIL(c)){
log_err("ERROR: 0x%02x is a single byte but results in single: %c lead: %c trail: %c\n",
c, UTF8_IS_SINGLE(c) ? 'y' : 'n', UTF8_IS_LEAD(c) ? 'y' : 'n', UTF8_IS_TRAIL(c) ? 'y' : 'n');
}
} else if(i< 8){
if(!UTF8_IS_LEAD(c) || UTF8_IS_SINGLE(c) || UTF8_IS_TRAIL(c) || !U8_IS_LEAD(c) || U8_IS_SINGLE(c) || U8_IS_TRAIL(c)){
log_err("ERROR: 0x%02x is a lead byte but results in single: %c lead: %c trail: %c\n",
c, UTF8_IS_SINGLE(c) ? 'y' : 'n', UTF8_IS_LEAD(c) ? 'y' : 'n', UTF8_IS_TRAIL(c) ? 'y' : 'n');
}
} else if(i< 12){
if(!UTF8_IS_TRAIL(c) || UTF8_IS_SINGLE(c) || UTF8_IS_LEAD(c) || !U8_IS_TRAIL(c) || U8_IS_SINGLE(c) || U8_IS_LEAD(c)){
log_err("ERROR: 0x%02x is a trail byte but results in single: %c lead: %c trail: %c\n",
c, UTF8_IS_SINGLE(c) ? 'y' : 'n', UTF8_IS_LEAD(c) ? 'y' : 'n', UTF8_IS_TRAIL(c) ? 'y' : 'n');
}
}
}
}
static void TestCharLength()
{
static const uint32_t codepoint[]={
1, 0x0061,
1, 0x007f,
2, 0x016f,
2, 0x07ff,
3, 0x0865,
3, 0x20ac,
4, 0x20402,
4, 0x23456,
4, 0x24506,
4, 0x20402,
4, 0x10402,
3, 0xd7ff,
3, 0xe000,
};
int16_t i;
UBool multiple;
for(i=0; i<UPRV_LENGTHOF(codepoint); i=(int16_t)(i+2)){
UChar32 c=codepoint[i+1];
if(UTF8_CHAR_LENGTH(c) != (uint16_t)codepoint[i] || U8_LENGTH(c) != (uint16_t)codepoint[i]){
log_err("The no: of code units for %lx:- Expected: %d Got: %d\n", c, codepoint[i], UTF8_CHAR_LENGTH(c));
}else{
log_verbose("The no: of code units for %lx is %d\n",c, UTF8_CHAR_LENGTH(c));
}
multiple=(UBool)(codepoint[i] == 1 ? FALSE : TRUE);
if(UTF8_NEED_MULTIPLE_UCHAR(c) != multiple){
log_err("ERROR: UTF8_NEED_MULTIPLE_UCHAR failed for %lx\n", c);
}
}
}
static void TestGetChar()
{
static const uint8_t input[]={
/* code unit,*/
0x61,
0x7f,
0xe4,
0xba,
0x8c,
0xF0,
0x90,
0x90,
0x81,
0xc0,
0x65,
0x31,
0x9a,
0xc9
};
static const UChar32 result[]={
/* codepoint-unsafe, codepoint-safe(not strict) codepoint-safe(strict) */
0x61, 0x61, 0x61,
0x7f, 0x7f, 0x7f,
0x4e8c, 0x4e8c, 0x4e8c,
0x4e8c, 0x4e8c, 0x4e8c ,
0x4e8c, 0x4e8c, 0x4e8c,
0x10401, 0x10401, 0x10401 ,
0x10401, 0x10401, 0x10401 ,
0x10401, 0x10401, 0x10401 ,
0x10401, 0x10401, 0x10401,
0x25, UTF8_ERROR_VALUE_1, UTF8_ERROR_VALUE_1,
0x65, 0x65, 0x65,
0x31, 0x31, 0x31,
0x31, UTF8_ERROR_VALUE_1, UTF8_ERROR_VALUE_1,
0x240, UTF8_ERROR_VALUE_1, UTF8_ERROR_VALUE_1
};
uint16_t i=0;
UChar32 c, expected;
uint32_t offset=0;
for(offset=0; offset<sizeof(input); offset++) {
if (offset < sizeof(input) - 1) {
UTF8_GET_CHAR_UNSAFE(input, offset, c);
if(c != result[i]){
log_err("ERROR: UTF8_GET_CHAR_UNSAFE failed for offset=%ld. Expected:%lx Got:%lx\n", offset, result[i], c);
}
U8_GET_UNSAFE(input, offset, c);
if(c != result[i]){
log_err("ERROR: U8_GET_UNSAFE failed for offset=%ld. Expected:%lx Got:%lx\n", offset, result[i], c);
}
}
UTF8_GET_CHAR_SAFE(input, 0, offset, sizeof(input), c, FALSE);
expected=result[i+1];
if(c != expected){
log_err("ERROR: UTF8_GET_CHAR_SAFE failed for offset=%ld. Expected:%lx Got:%lx\n", offset, expected, c);
}
U8_GET(input, 0, offset, sizeof(input), c);
if(UTF_IS_ERROR(expected)) { expected=U_SENTINEL; }
if(c != expected){
log_err("ERROR: U8_GET failed for offset=%ld. Expected:%lx Got:%lx\n", offset, expected, c);
}
U8_GET_OR_FFFD(input, 0, offset, sizeof(input), c);
if(expected<0) { expected=0xfffd; }
if(c != expected){
log_err("ERROR: U8_GET_OR_FFFD failed for offset=%ld. Expected:%lx Got:%lx\n", offset, expected, c);
}
UTF8_GET_CHAR_SAFE(input, 0, offset, sizeof(input), c, TRUE);
if(c != result[i+2]){
log_err("ERROR: UTF8_GET_CHAR_SAFE(strict) failed for offset=%ld. Expected:%lx Got:%lx\n", offset, result[i+2], c);
}
i=(uint16_t)(i+3);
}
}
static void TestNextPrevChar() {
static const uint8_t input[]={0x61, 0xf0, 0x90, 0x90, 0x81, 0xc0, 0x80, 0xfd, 0xbe, 0xc2, 0x61, 0x81, 0x90, 0x90, 0xf0, 0x00};
static const UChar32 result[]={
/* next_unsafe next_safe_ns next_safe_s prev_unsafe prev_safe_ns prev_safe_s */
0x0061, 0x0061, 0x0061, 0x0000, 0x0000, 0x0000,
0x10401, 0x10401, 0x10401, 0xf0, UTF8_ERROR_VALUE_1, UTF8_ERROR_VALUE_1,
0x90, UTF8_ERROR_VALUE_1, UTF8_ERROR_VALUE_1, 0x2841410, UTF8_ERROR_VALUE_1, UTF8_ERROR_VALUE_1,
0x90, UTF8_ERROR_VALUE_1, UTF8_ERROR_VALUE_1, 0xa1050, UTF8_ERROR_VALUE_1, UTF8_ERROR_VALUE_1,
0x81, UTF8_ERROR_VALUE_1, UTF8_ERROR_VALUE_1, 0x2841, UTF8_ERROR_VALUE_1, UTF8_ERROR_VALUE_1,
0x00, UTF8_ERROR_VALUE_2, UTF8_ERROR_VALUE_2, 0x61, 0x61, 0x61,
0x80, UTF8_ERROR_VALUE_1, UTF8_ERROR_VALUE_1, 0xc2, UTF8_ERROR_VALUE_1, UTF8_ERROR_VALUE_1,
0xfd, UTF8_ERROR_VALUE_2, UTF8_ERROR_VALUE_2, 0x77e, UTF8_ERROR_VALUE_2, UTF8_ERROR_VALUE_2,
0xbe, UTF8_ERROR_VALUE_1, UTF8_ERROR_VALUE_1, 0xfd, UTF8_ERROR_VALUE_1, UTF8_ERROR_VALUE_1,
0xa1, UTF8_ERROR_VALUE_1, UTF8_ERROR_VALUE_1, 0x00, UTF8_ERROR_VALUE_2, UTF8_ERROR_VALUE_2,
0x61, 0x61, 0x61, 0xc0, UTF8_ERROR_VALUE_1, UTF8_ERROR_VALUE_1,
0x81, UTF8_ERROR_VALUE_1, UTF8_ERROR_VALUE_1, 0x10401, 0x10401, 0x10401,
0x90, UTF8_ERROR_VALUE_1, UTF8_ERROR_VALUE_1, 0x410, UTF_ERROR_VALUE, UTF_ERROR_VALUE,
0x90, UTF8_ERROR_VALUE_1, UTF8_ERROR_VALUE_1, 0x410, UTF8_ERROR_VALUE_2, UTF8_ERROR_VALUE_2,
0x0840, UTF8_ERROR_VALUE_1, UTF8_ERROR_VALUE_1, 0xf0, UTF8_ERROR_VALUE_1, UTF8_ERROR_VALUE_1,
0x0000, 0x0000, 0x0000, 0x0061, 0x0061, 0x0061
};
static const int32_t movedOffset[]={
/* next_unsafe next_safe_ns next_safe_s prev_unsafe prev_safe_ns prev_safe_s */
1, 1, 1, 15, 15, 15,
5, 5, 5, 14, 14 , 14,
3, 3, 3, 9, 13, 13,
4, 4, 4, 9, 12, 12,
5, 5, 5, 9, 11, 11,
7, 7, 7, 10, 10, 10,
7, 7, 7, 9, 9, 9,
8, 9, 9, 7, 7, 7,
9, 9, 9, 7, 7, 7,
11, 10, 10, 5, 5, 5,
11, 11, 11, 5, 5, 5,
12, 12, 12, 1, 1, 1,
13, 13, 13, 1, 1, 1,
14, 14, 14, 1, 1, 1,
14, 15, 15, 1, 1, 1,
14, 16, 16, 0, 0, 0,
};
/* TODO: remove unused columns for next_unsafe & prev_unsafe, and adjust the test code */
UChar32 c, expected;
uint32_t i=0;
uint32_t offset=0;
int32_t setOffset=0;
for(offset=0; offset<sizeof(input); offset++){
setOffset=offset;
UTF8_NEXT_CHAR_SAFE(input, setOffset, sizeof(input), c, FALSE);
if(setOffset != movedOffset[i+1]){
log_err("ERROR: UTF8_NEXT_CHAR_SAFE failed to move the offset correctly at %d\n ExpectedOffset:%d Got %d\n",
offset, movedOffset[i+1], setOffset);
}
expected=result[i+1];
if(c != expected){
log_err("ERROR: UTF8_NEXT_CHAR_SAFE failed for input=%ld. Expected:%lx Got:%lx\n", offset, expected, c);
}
setOffset=offset;
U8_NEXT(input, setOffset, sizeof(input), c);
if(setOffset != movedOffset[i+1]){
log_err("ERROR: U8_NEXT failed to move the offset correctly at %d\n ExpectedOffset:%d Got %d\n",
offset, movedOffset[i+1], setOffset);
}
if(UTF_IS_ERROR(expected)) { expected=U_SENTINEL; }
if(c != expected){
log_err("ERROR: U8_NEXT failed for input=%ld. Expected:%lx Got:%lx\n", offset, expected, c);
}
setOffset=offset;
U8_NEXT_OR_FFFD(input, setOffset, sizeof(input), c);
if(setOffset != movedOffset[i+1]){
log_err("ERROR: U8_NEXT_OR_FFFD failed to move the offset correctly at %d\n ExpectedOffset:%d Got %d\n",
offset, movedOffset[i+1], setOffset);
}
if(expected<0) { expected=0xfffd; }
if(c != expected){
log_err("ERROR: U8_NEXT_OR_FFFD failed for input=%ld. Expected:%lx Got:%lx\n", offset, expected, c);
}
setOffset=offset;
UTF8_NEXT_CHAR_SAFE(input, setOffset, sizeof(input), c, TRUE);
if(setOffset != movedOffset[i+1]){
log_err("ERROR: UTF8_NEXT_CHAR_SAFE(strict) failed to move the offset correctly at %d\n ExpectedOffset:%d Got %d\n",
offset, movedOffset[i+2], setOffset);
}
if(c != result[i+2]){
log_err("ERROR: UTF8_NEXT_CHAR_SAFE(strict) failed for input=%ld. Expected:%lx Got:%lx\n", offset, result[i+2], c);
}
i=i+6;
}
i=0;
for(offset=sizeof(input); offset > 0; --offset){
setOffset=offset;
UTF8_PREV_CHAR_SAFE(input, 0, setOffset, c, FALSE);
if(setOffset != movedOffset[i+4]){
log_err("ERROR: UTF8_PREV_CHAR_SAFE failed to move the offset correctly at %d\n ExpectedOffset:%d Got %d\n",
offset, movedOffset[i+4], setOffset);
}
expected=result[i+4];
if(c != expected){
log_err("ERROR: UTF8_PREV_CHAR_SAFE failed for input=%ld. Expected:%lx Got:%lx\n", offset, expected, c);
}
setOffset=offset;
U8_PREV(input, 0, setOffset, c);
if(setOffset != movedOffset[i+4]){
log_err("ERROR: U8_PREV failed to move the offset correctly at %d\n ExpectedOffset:%d Got %d\n",
offset, movedOffset[i+4], setOffset);
}
if(UTF_IS_ERROR(expected)) { expected=U_SENTINEL; }
if(c != expected){
log_err("ERROR: U8_PREV failed for input=%ld. Expected:%lx Got:%lx\n", offset, expected, c);
}
setOffset=offset;
U8_PREV_OR_FFFD(input, 0, setOffset, c);
if(setOffset != movedOffset[i+4]){
log_err("ERROR: U8_PREV_OR_FFFD failed to move the offset correctly at %d\n ExpectedOffset:%d Got %d\n",
offset, movedOffset[i+4], setOffset);
}
if(expected<0) { expected=0xfffd; }
if(c != expected){
log_err("ERROR: U8_PREV_OR_FFFD failed for input=%ld. Expected:%lx Got:%lx\n", offset, expected, c);
}
setOffset=offset;
UTF8_PREV_CHAR_SAFE(input, 0, setOffset, c, TRUE);
if(setOffset != movedOffset[i+5]){
log_err("ERROR: UTF8_PREV_CHAR_SAFE(strict) failed to move the offset correctly at %d\n ExpectedOffset:%d Got %d\n",
offset, movedOffset[i+5], setOffset);
}
if(c != result[i+5]){
log_err("ERROR: UTF8_PREV_CHAR_SAFE(strict) failed for input=%ld. Expected:%lx Got:%lx\n", offset, result[i+5], c);
}
i=i+6;
}
}
/* keep this in sync with utf16tst.c's TestNulTerminated() */
static void TestNulTerminated() {
static const uint8_t input[]={
/* 0 */ 0x61,
/* 1 */ 0xf0, 0x90, 0x90, 0x81,
/* 5 */ 0xc0, 0x80,
/* 7 */ 0xdf, 0x80,
/* 9 */ 0xc2,
/* 10 */ 0x62,
/* 11 */ 0xfd, 0xbe,
/* 13 */ 0xe0, 0xa0, 0x80,
/* 16 */ 0xe2, 0x82, 0xac,
/* 19 */ 0xf0, 0x90, 0x90,
/* 22 */ 0x00
/* 23 */
};
static const UChar32 result[]={
0x61,
0x10401,
U_SENTINEL,
0x7c0,
U_SENTINEL,
0x62,
U_SENTINEL,
0x800,
0x20ac,
U_SENTINEL,
0
};
UChar32 c, c2, expected;
int32_t i0, i=0, j, k, expectedIndex;
int32_t cpIndex=0;
do {
i0=i;
U8_NEXT(input, i, -1, c);
expected=result[cpIndex];
if(c!=expected) {
log_err("U8_NEXT(from %d)=U+%04x != U+%04x\n", i0, c, expected);
}
j=i0;
U8_NEXT_OR_FFFD(input, j, -1, c);
if(expected<0) { expected=0xfffd; }
if(c!=expected) {
log_err("U8_NEXT_OR_FFFD(from %d)=U+%04x != U+%04x\n", i0, c, expected);
}
if(j!=i) {
log_err("U8_NEXT_OR_FFFD() moved to index %d but U8_NEXT() moved to %d\n", j, i);
}
j=i0;
U8_FWD_1(input, j, -1);
if(j!=i) {
log_err("U8_FWD_1() moved to index %d but U8_NEXT() moved to %d\n", j, i);
}
++cpIndex;
/*
* Move by this many code points from the start.
* U8_FWD_N() stops at the end of the string, that is, at the NUL if necessary.
*/
expectedIndex= (c==0) ? i-1 : i;
k=0;
U8_FWD_N(input, k, -1, cpIndex);
if(k!=expectedIndex) {
log_err("U8_FWD_N(code points from 0) moved to index %d but expected %d\n", k, expectedIndex);
}
} while(c!=0);
i=0;
do {
j=i0=i;
U8_NEXT(input, i, -1, c);
do {
U8_GET(input, 0, j, -1, c2);
if(c2!=c) {
log_err("U8_NEXT(from %d)=U+%04x != U+%04x=U8_GET(at %d)\n", i0, c, c2, j);
}
U8_GET_OR_FFFD(input, 0, j, -1, c2);
expected= (c>=0) ? c : 0xfffd;
if(c2!=expected) {
log_err("U8_NEXT_OR_FFFD(from %d)=U+%04x != U+%04x=U8_GET_OR_FFFD(at %d)\n", i0, expected, c2, j);
}
/* U8_SET_CP_LIMIT moves from a non-lead byte to the limit of the code point */
k=j+1;
U8_SET_CP_LIMIT(input, 0, k, -1);
if(k!=i) {
log_err("U8_NEXT() moved to %d but U8_SET_CP_LIMIT(%d) moved to %d\n", i, j+1, k);
}
} while(++j<i);
} while(c!=0);
}
static void TestNextPrevNonCharacters() {
/* test non-characters */
static const uint8_t nonChars[]={
0xef, 0xb7, 0x90, /* U+fdd0 */
0xef, 0xbf, 0xbf, /* U+feff */
0xf0, 0x9f, 0xbf, 0xbe, /* U+1fffe */
0xf0, 0xbf, 0xbf, 0xbf, /* U+3ffff */
0xf4, 0x8f, 0xbf, 0xbe /* U+10fffe */
};
UChar32 ch;
int32_t idx;
for(idx=0; idx<(int32_t)sizeof(nonChars);) {
U8_NEXT(nonChars, idx, sizeof(nonChars), ch);
if(!U_IS_UNICODE_NONCHAR(ch)) {
log_err("U8_NEXT(before %d) failed to read a non-character\n", idx);
}
}
for(idx=(int32_t)sizeof(nonChars); idx>0;) {
U8_PREV(nonChars, 0, idx, ch);
if(!U_IS_UNICODE_NONCHAR(ch)) {
log_err("U8_PREV(at %d) failed to read a non-character\n", idx);
}
}
}
static void TestNextPrevCharUnsafe() {
/*
* Use a (mostly) well-formed UTF-8 string and test at code point boundaries.
* The behavior of _UNSAFE macros for ill-formed strings is undefined.
*/
static const uint8_t input[]={
0x61,
0xf0, 0x90, 0x90, 0x81,
0xc0, 0x80, /* non-shortest form */
0xe2, 0x82, 0xac,
0xc2, 0xa1,
0xf4, 0x8f, 0xbf, 0xbf,
0x00
};
static const UChar32 codePoints[]={
0x61,
0x10401,
0,
0x20ac,
0xa1,
0x10ffff,
0
};
UChar32 c;
int32_t i;
uint32_t offset;
for(i=0, offset=0; offset<sizeof(input); ++i) {
UTF8_NEXT_CHAR_UNSAFE(input, offset, c);
if(c != codePoints[i]){
log_err("ERROR: UTF8_NEXT_CHAR_UNSAFE failed for offset=%ld. Expected:%lx Got:%lx\n",
offset, codePoints[i], c);
}
}
for(i=0, offset=0; offset<sizeof(input); ++i) {
U8_NEXT_UNSAFE(input, offset, c);
if(c != codePoints[i]){
log_err("ERROR: U8_NEXT_UNSAFE failed for offset=%ld. Expected:%lx Got:%lx\n",
offset, codePoints[i], c);
}
}
for(i=UPRV_LENGTHOF(codePoints)-1, offset=sizeof(input); offset > 0; --i){
UTF8_PREV_CHAR_UNSAFE(input, offset, c);
if(c != codePoints[i]){
log_err("ERROR: UTF8_PREV_CHAR_UNSAFE failed for offset=%ld. Expected:%lx Got:%lx\n",
offset, codePoints[i], c);
}
}
for(i=UPRV_LENGTHOF(codePoints)-1, offset=sizeof(input); offset > 0; --i){
U8_PREV_UNSAFE(input, offset, c);
if(c != codePoints[i]){
log_err("ERROR: U8_PREV_UNSAFE failed for offset=%ld. Expected:%lx Got:%lx\n",
offset, codePoints[i], c);
}
}
}
static void TestFwdBack() {
static const uint8_t input[]={0x61, 0xF0, 0x90, 0x90, 0x81, 0xff, 0x62, 0xc0, 0x80, 0x7f, 0x8f, 0xc0, 0x63, 0x81, 0x90, 0x90, 0xF0, 0x00};
static const uint16_t fwd_safe[] ={1, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18};
static const uint16_t back_safe[] ={17, 16, 15, 14, 13, 12, 11, 10, 9, 7, 6, 5, 1, 0};
static const uint16_t Nvalue[]= {0, 1, 2, 3, 1, 2, 1, 5};
static const uint16_t fwd_N_safe[] ={0, 1, 6, 10, 11, 13, 14, 18}; /*safe macro keeps it at the end of the string */
static const uint16_t back_N_safe[] ={18, 17, 15, 12, 11, 9, 7, 0};
uint32_t offsafe=0;
uint32_t i=0;
while(offsafe < sizeof(input)){
UTF8_FWD_1_SAFE(input, offsafe, sizeof(input));
if(offsafe != fwd_safe[i]){
log_err("ERROR: Forward_safe offset expected:%d, Got:%d\n", fwd_safe[i], offsafe);
}
i++;
}
i=0;
while(offsafe < sizeof(input)){
U8_FWD_1(input, offsafe, sizeof(input));
if(offsafe != fwd_safe[i]){
log_err("ERROR: U8_FWD_1 offset expected:%d, Got:%d\n", fwd_safe[i], offsafe);
}
i++;
}
i=0;
offsafe=sizeof(input);
while(offsafe > 0){
UTF8_BACK_1_SAFE(input, 0, offsafe);
if(offsafe != back_safe[i]){
log_err("ERROR: Backward_safe offset expected:%d, Got:%d\n", back_safe[i], offsafe);
}
i++;
}
i=0;
offsafe=sizeof(input);
while(offsafe > 0){
U8_BACK_1(input, 0, offsafe);
if(offsafe != back_safe[i]){
log_err("ERROR: U8_BACK_1 offset expected:%d, Got:%d\n", back_safe[i], offsafe);
}
i++;
}
offsafe=0;
for(i=0; i<UPRV_LENGTHOF(Nvalue); i++){
UTF8_FWD_N_SAFE(input, offsafe, sizeof(input), Nvalue[i]);
if(offsafe != fwd_N_safe[i]){
log_err("ERROR: Forward_N_safe offset=%d expected:%d, Got:%d\n", i, fwd_N_safe[i], offsafe);
}
}
offsafe=0;
for(i=0; i<UPRV_LENGTHOF(Nvalue); i++){
U8_FWD_N(input, offsafe, sizeof(input), Nvalue[i]);
if(offsafe != fwd_N_safe[i]){
log_err("ERROR: U8_FWD_N offset=%d expected:%d, Got:%d\n", i, fwd_N_safe[i], offsafe);
}
}
offsafe=sizeof(input);
for(i=0; i<UPRV_LENGTHOF(Nvalue); i++){
UTF8_BACK_N_SAFE(input, 0, offsafe, Nvalue[i]);
if(offsafe != back_N_safe[i]){
log_err("ERROR: backward_N_safe offset=%d expected:%d, Got:%ld\n", i, back_N_safe[i], offsafe);
}
}
offsafe=sizeof(input);
for(i=0; i<UPRV_LENGTHOF(Nvalue); i++){
U8_BACK_N(input, 0, offsafe, Nvalue[i]);
if(offsafe != back_N_safe[i]){
log_err("ERROR: U8_BACK_N offset=%d expected:%d, Got:%ld\n", i, back_N_safe[i], offsafe);
}
}
}
static void TestFwdBackUnsafe() {
/*
* Use a (mostly) well-formed UTF-8 string and test at code point boundaries.
* The behavior of _UNSAFE macros for ill-formed strings is undefined.
*/
static const uint8_t input[]={
0x61,
0xf0, 0x90, 0x90, 0x81,
0xc0, 0x80, /* non-shortest form */
0xe2, 0x82, 0xac,
0xc2, 0xa1,
0xf4, 0x8f, 0xbf, 0xbf,
0x00
};
static const int8_t boundaries[]={ 0, 1, 5, 7, 10, 12, 16, 17 };
int32_t offset;
int32_t i;
for(i=1, offset=0; offset<UPRV_LENGTHOF(input); ++i) {
UTF8_FWD_1_UNSAFE(input, offset);
if(offset != boundaries[i]){
log_err("ERROR: UTF8_FWD_1_UNSAFE offset expected:%d, Got:%d\n", boundaries[i], offset);
}
}
for(i=1, offset=0; offset<UPRV_LENGTHOF(input); ++i) {
U8_FWD_1_UNSAFE(input, offset);
if(offset != boundaries[i]){
log_err("ERROR: U8_FWD_1_UNSAFE offset expected:%d, Got:%d\n", boundaries[i], offset);
}
}
for(i=UPRV_LENGTHOF(boundaries)-2, offset=UPRV_LENGTHOF(input); offset>0; --i) {
UTF8_BACK_1_UNSAFE(input, offset);
if(offset != boundaries[i]){
log_err("ERROR: UTF8_BACK_1_UNSAFE offset expected:%d, Got:%d\n", boundaries[i], offset);
}
}
for(i=UPRV_LENGTHOF(boundaries)-2, offset=UPRV_LENGTHOF(input); offset>0; --i) {
U8_BACK_1_UNSAFE(input, offset);
if(offset != boundaries[i]){
log_err("ERROR: U8_BACK_1_UNSAFE offset expected:%d, Got:%d\n", boundaries[i], offset);
}
}
for(i=0; i<UPRV_LENGTHOF(boundaries); ++i) {
offset=0;
UTF8_FWD_N_UNSAFE(input, offset, i);
if(offset != boundaries[i]) {
log_err("ERROR: UTF8_FWD_N_UNSAFE offset expected:%d, Got:%d\n", boundaries[i], offset);
}
}
for(i=0; i<UPRV_LENGTHOF(boundaries); ++i) {
offset=0;
U8_FWD_N_UNSAFE(input, offset, i);
if(offset != boundaries[i]) {
log_err("ERROR: U8_FWD_N_UNSAFE offset expected:%d, Got:%d\n", boundaries[i], offset);
}
}
for(i=0; i<UPRV_LENGTHOF(boundaries); ++i) {
int32_t j=UPRV_LENGTHOF(boundaries)-1-i;
offset=UPRV_LENGTHOF(input);
UTF8_BACK_N_UNSAFE(input, offset, i);
if(offset != boundaries[j]) {
log_err("ERROR: UTF8_BACK_N_UNSAFE offset expected:%d, Got:%d\n", boundaries[j], offset);
}
}
for(i=0; i<UPRV_LENGTHOF(boundaries); ++i) {
int32_t j=UPRV_LENGTHOF(boundaries)-1-i;
offset=UPRV_LENGTHOF(input);
U8_BACK_N_UNSAFE(input, offset, i);
if(offset != boundaries[j]) {
log_err("ERROR: U8_BACK_N_UNSAFE offset expected:%d, Got:%d\n", boundaries[j], offset);
}
}
}
static void TestSetChar() {
static const uint8_t input[]
= {0x61, 0xe4, 0xba, 0x8c, 0x7f, 0xfe, 0x62, 0xc5, 0x7f, 0x61, 0x80, 0x80, 0xe0, 0x00 };
static const int16_t start_safe[]
= {0, 1, 1, 1, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 };
static const int16_t limit_safe[]
= {0, 1, 4, 4, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 };
uint32_t i=0;
int32_t offset=0, setOffset=0;
for(offset=0; offset<=UPRV_LENGTHOF(input); offset++){
if (offset<UPRV_LENGTHOF(input)){
setOffset=offset;
UTF8_SET_CHAR_START_SAFE(input, 0, setOffset);
if(setOffset != start_safe[i]){
log_err("ERROR: UTF8_SET_CHAR_START_SAFE failed for offset=%ld. Expected:%ld Got:%ld\n", offset, start_safe[i], setOffset);
}
setOffset=offset;
U8_SET_CP_START(input, 0, setOffset);
if(setOffset != start_safe[i]){
log_err("ERROR: U8_SET_CP_START failed for offset=%ld. Expected:%ld Got:%ld\n", offset, start_safe[i], setOffset);
}
}
setOffset=offset;
UTF8_SET_CHAR_LIMIT_SAFE(input,0, setOffset, sizeof(input));
if(setOffset != limit_safe[i]){
log_err("ERROR: UTF8_SET_CHAR_LIMIT_SAFE failed for offset=%ld. Expected:%ld Got:%ld\n", offset, limit_safe[i], setOffset);
}
setOffset=offset;
U8_SET_CP_LIMIT(input,0, setOffset, sizeof(input));
if(setOffset != limit_safe[i]){
log_err("ERROR: U8_SET_CP_LIMIT failed for offset=%ld. Expected:%ld Got:%ld\n", offset, limit_safe[i], setOffset);
}
i++;
}
}
static void TestSetCharUnsafe() {
static const uint8_t input[]
= {0x61, 0xe4, 0xba, 0x8c, 0x7f, 0x2e, 0x62, 0xc5, 0x7f, 0x61, 0x80, 0x80, 0xe0, 0x80, 0x80, 0x00 };
static const int16_t start_unsafe[]
= {0, 1, 1, 1, 4, 5, 6, 7, 8, 9, 9, 9, 12, 12, 12, 15 };
static const int16_t limit_unsafe[]
= {0, 1, 4, 4, 4, 5, 6, 7, 9, 9, 10, 10, 10, 15, 15, 15, 16 };
uint32_t i=0;
int32_t offset=0, setOffset=0;
for(offset=0; offset<=UPRV_LENGTHOF(input); offset++){
if (offset<UPRV_LENGTHOF(input)){
setOffset=offset;
UTF8_SET_CHAR_START_UNSAFE(input, setOffset);
if(setOffset != start_unsafe[i]){
log_err("ERROR: UTF8_SET_CHAR_START_UNSAFE failed for offset=%ld. Expected:%ld Got:%ld\n", offset, start_unsafe[i], setOffset);
}
setOffset=offset;
U8_SET_CP_START_UNSAFE(input, setOffset);
if(setOffset != start_unsafe[i]){
log_err("ERROR: U8_SET_CP_START_UNSAFE failed for offset=%ld. Expected:%ld Got:%ld\n", offset, start_unsafe[i], setOffset);
}
}
if (offset != 0) { /* Can't have it go off the end of the array */
setOffset=offset;
UTF8_SET_CHAR_LIMIT_UNSAFE(input, setOffset);
if(setOffset != limit_unsafe[i]){
log_err("ERROR: UTF8_SET_CHAR_LIMIT_UNSAFE failed for offset=%ld. Expected:%ld Got:%ld\n", offset, limit_unsafe[i], setOffset);
}
setOffset=offset;
U8_SET_CP_LIMIT_UNSAFE(input, setOffset);
if(setOffset != limit_unsafe[i]){
log_err("ERROR: U8_SET_CP_LIMIT_UNSAFE failed for offset=%ld. Expected:%ld Got:%ld\n", offset, limit_unsafe[i], setOffset);
}
}
i++;
}
}
static void TestAppendChar(){
static const uint8_t s[11]={0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x00};
static const uint32_t test[]={
/* append-position(unsafe), CHAR to be appended */
0, 0x10401,
2, 0x0028,
2, 0x007f,
3, 0xd801,
1, 0x20402,
8, 0x10401,
5, 0xc0,
5, 0xc1,
5, 0xfd,
6, 0x80,
6, 0x81,
6, 0xbf,
7, 0xfe,
/* append-position(safe), CHAR to be appended */
0, 0x10401,
2, 0x0028,
3, 0x7f,
3, 0xd801, /* illegal for UTF-8 starting with Unicode 3.2 */
1, 0x20402,
9, 0x10401,
5, 0xc0,
5, 0xc1,
5, 0xfd,
6, 0x80,
6, 0x81,
6, 0xbf,
7, 0xfe,
};
static const uint16_t movedOffset[]={
/* offset-moved-to(unsafe) */
4, /*for append-pos: 0 , CHAR 0x10401*/
3,
3,
6,
5,
12,
7,
7,
7,
8,
8,
8,
9,
/* offset-moved-to(safe) */
4, /*for append-pos: 0, CHAR 0x10401*/
3,
4,
6,
5,
11,
7,
7,
7,
8,
8,
8,
9,
};
static const uint8_t result[][11]={
/*unsafe*/
{0xF0, 0x90, 0x90, 0x81, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x00},
{0x61, 0x62, 0x28, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x00},
{0x61, 0x62, 0x7f, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x00},
{0x61, 0x62, 0x63, 0xed, 0xa0, 0x81, 0x67, 0x68, 0x69, 0x6a, 0x00},
{0x61, 0xF0, 0xa0, 0x90, 0x82, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x00},
{0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0xF0, 0x90, 0x90},
{0x61, 0x62, 0x63, 0x64, 0x65, 0xc3, 0x80, 0x68, 0x69, 0x6a, 0x00},
{0x61, 0x62, 0x63, 0x64, 0x65, 0xc3, 0x81, 0x68, 0x69, 0x6a, 0x00},
{0x61, 0x62, 0x63, 0x64, 0x65, 0xc3, 0xbd, 0x68, 0x69, 0x6a, 0x00},
{0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0xc2, 0x80, 0x69, 0x6a, 0x00},
{0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0xc2, 0x81, 0x69, 0x6a, 0x00},
{0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0xc2, 0xbf, 0x69, 0x6a, 0x00},
{0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0xc3, 0xbe, 0x6a, 0x00},
/*safe*/
{0xF0, 0x90, 0x90, 0x81, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x00},
{0x61, 0x62, 0x28, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x00},
{0x61, 0x62, 0x63, 0x7f, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x00},
{0x61, 0x62, 0x63, 0xef, 0xbf, 0xbf, 0x67, 0x68, 0x69, 0x6a, 0x00},
{0x61, 0xF0, 0xa0, 0x90, 0x82, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x00},
{0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0xc2, 0x9f}, /*gets UTF8_ERROR_VALUE_2 which takes 2 bytes 0xc0, 0x9f*/
{0x61, 0x62, 0x63, 0x64, 0x65, 0xc3, 0x80, 0x68, 0x69, 0x6a, 0x00},
{0x61, 0x62, 0x63, 0x64, 0x65, 0xc3, 0x81, 0x68, 0x69, 0x6a, 0x00},
{0x61, 0x62, 0x63, 0x64, 0x65, 0xc3, 0xbd, 0x68, 0x69, 0x6a, 0x00},
{0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0xc2, 0x80, 0x69, 0x6a, 0x00},
{0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0xc2, 0x81, 0x69, 0x6a, 0x00},
{0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0xc2, 0xbf, 0x69, 0x6a, 0x00},
{0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0xc3, 0xbe, 0x6a, 0x00},
};
uint16_t i, count=0;
uint8_t str[12];
uint32_t offset;
/* UChar32 c=0;*/
uint16_t size=UPRV_LENGTHOF(s);
for(i=0; i<UPRV_LENGTHOF(test); i=(uint16_t)(i+2)){
uprv_memcpy(str, s, size);
offset=test[i];
if(count<13){
UTF8_APPEND_CHAR_UNSAFE(str, offset, test[i+1]);
if(offset != movedOffset[count]){
log_err("ERROR: UTF8_APPEND_CHAR_UNSAFE failed to move the offset correctly for count=%d.\nExpectedOffset=%d currentOffset=%d\n",
count, movedOffset[count], offset);
}
if(uprv_memcmp(str, result[count], size) !=0){
log_err("ERROR: UTF8_APPEND_CHAR_UNSAFE failed for count=%d. \nExpected:", count);
printUChars(result[count], size);
log_err("\nGot: ");
printUChars(str, size);
log_err("\n");
}
}else{
UTF8_APPEND_CHAR_SAFE(str, offset, size, test[i+1]);
if(offset != movedOffset[count]){
log_err("ERROR: UTF8_APPEND_CHAR_SAFE failed to move the offset correctly for count=%d.\nExpectedOffset=%d currentOffset=%d\n",
count, movedOffset[count], offset);
}
if(uprv_memcmp(str, result[count], size) !=0){
log_err("ERROR: UTF8_APPEND_CHAR_SAFE failed for count=%d. \nExpected:", count);
printUChars(result[count], size);
log_err("\nGot: ");
printUChars(str, size);
log_err("\n");
}
/*call the API instead of MACRO
uprv_memcpy(str, s, size);
offset=test[i];
c=test[i+1];
if((uint32_t)(c)<=0x7f) {
(str)[(offset)++]=(uint8_t)(c);
} else {
(offset)=utf8_appendCharSafeBody(str, (int32_t)(offset), (int32_t)(size), c);
}
if(offset != movedOffset[count]){
log_err("ERROR: utf8_appendCharSafeBody() failed to move the offset correctly for count=%d.\nExpectedOffset=%d currentOffset=%d\n",
count, movedOffset[count], offset);
}
if(uprv_memcmp(str, result[count], size) !=0){
log_err("ERROR: utf8_appendCharSafeBody() failed for count=%d. \nExpected:", count);
printUChars(result[count], size);
printf("\nGot: ");
printUChars(str, size);
printf("\n");
}
*/
}
count++;
}
}
static void TestAppend() {
static const UChar32 codePoints[]={
0x61, 0xdf, 0x901, 0x3040,
0xac00, 0xd800, 0xdbff, 0xdcde,
0xdffd, 0xe000, 0xffff, 0x10000,
0x12345, 0xe0021, 0x10ffff, 0x110000,
0x234567, 0x7fffffff, -1, -1000,
0, 0x400
};
static const uint8_t expectUnsafe[]={
0x61, 0xc3, 0x9f, 0xe0, 0xa4, 0x81, 0xe3, 0x81, 0x80,
0xea, 0xb0, 0x80, 0xed, 0xa0, 0x80, 0xed, 0xaf, 0xbf, 0xed, 0xb3, 0x9e,
0xed, 0xbf, 0xbd, 0xee, 0x80, 0x80, 0xef, 0xbf, 0xbf, 0xf0, 0x90, 0x80, 0x80,
0xf0, 0x92, 0x8d, 0x85, 0xf3, 0xa0, 0x80, 0xa1, 0xf4, 0x8f, 0xbf, 0xbf, /* not 0x110000 */
/* none from this line */
0, 0xd0, 0x80
}, expectSafe[]={
0x61, 0xc3, 0x9f, 0xe0, 0xa4, 0x81, 0xe3, 0x81, 0x80,
0xea, 0xb0, 0x80, /* no surrogates */
/* no surrogates */ 0xee, 0x80, 0x80, 0xef, 0xbf, 0xbf, 0xf0, 0x90, 0x80, 0x80,
0xf0, 0x92, 0x8d, 0x85, 0xf3, 0xa0, 0x80, 0xa1, 0xf4, 0x8f, 0xbf, 0xbf, /* not 0x110000 */
/* none from this line */
0, 0xd0, 0x80
};
uint8_t buffer[100];
UChar32 c;
int32_t i, length;
UBool isError, expectIsError, wrongIsError;
length=0;
for(i=0; i<UPRV_LENGTHOF(codePoints); ++i) {
c=codePoints[i];
if(c<0 || 0x10ffff<c) {
continue; /* skip non-code points for U8_APPEND_UNSAFE */
}
U8_APPEND_UNSAFE(buffer, length, c);
}
if(length!=UPRV_LENGTHOF(expectUnsafe) || 0!=memcmp(buffer, expectUnsafe, length)) {
log_err("U8_APPEND_UNSAFE did not generate the expected output\n");
}
length=0;
wrongIsError=FALSE;
for(i=0; i<UPRV_LENGTHOF(codePoints); ++i) {
c=codePoints[i];
expectIsError= c<0 || 0x10ffff<c || U_IS_SURROGATE(c);
isError=FALSE;
U8_APPEND(buffer, length, UPRV_LENGTHOF(buffer), c, isError);
wrongIsError|= isError!=expectIsError;
}
if(wrongIsError) {
log_err("U8_APPEND did not set isError correctly\n");
}
if(length!=UPRV_LENGTHOF(expectSafe) || 0!=memcmp(buffer, expectSafe, length)) {
log_err("U8_APPEND did not generate the expected output\n");
}
}
static void
TestSurrogates() {
static const uint8_t b[]={
0xc3, 0x9f, /* 00DF */
0xed, 0x9f, 0xbf, /* D7FF */
0xed, 0xa0, 0x81, /* D801 */
0xed, 0xbf, 0xbe, /* DFFE */
0xee, 0x80, 0x80, /* E000 */
0xf0, 0x97, 0xbf, 0xbe /* 17FFE */
};
static const UChar32 cp[]={
0xdf, 0xd7ff, 0xd801, 0xdffe, 0xe000, 0x17ffe
};
UChar32 cu, cs, cl;
int32_t i, j, k, iu, is, il, length;
k=0; /* index into cp[] */
length=UPRV_LENGTHOF(b);
for(i=0; i<length;) {
j=i;
U8_NEXT_UNSAFE(b, j, cu);
iu=j;
j=i;
U8_NEXT(b, j, length, cs);
is=j;
j=i;
L8_NEXT(b, j, length, cl);
il=j;
if(cu!=cp[k]) {
log_err("U8_NEXT_UNSAFE(b[%ld])=U+%04lX != U+%04lX\n", (long)i, (long)cu, (long)cp[k]);
}
/* U8_NEXT() returns <0 for surrogate code points */
if(U_IS_SURROGATE(cu) ? cs>=0 : cs!=cu) {
log_err("U8_NEXT(b[%ld])=U+%04lX != U+%04lX\n", (long)i, (long)cs, (long)cu);
}
/* L8_NEXT() returns surrogate code points like U8_NEXT_UNSAFE() */
if(cl!=cu) {
log_err("L8_NEXT(b[%ld])=U+%04lX != U+%04lX\n", (long)i, (long)cl, (long)cu);
}
if(is!=iu || il!=iu) {
log_err("U8_NEXT(b[%ld]) or L8_NEXT(b[%ld]) did not advance the index correctly\n", (long)i, (long)i);
}
++k; /* next code point */
i=iu; /* advance by one UTF-8 sequence */
}
while(i>0) {
--k; /* previous code point */
j=i;
U8_PREV_UNSAFE(b, j, cu);
iu=j;
j=i;
U8_PREV(b, 0, j, cs);
is=j;
j=i;
L8_PREV(b, 0, j, cl);
il=j;
if(cu!=cp[k]) {
log_err("U8_PREV_UNSAFE(b[%ld])=U+%04lX != U+%04lX\n", (long)i, (long)cu, (long)cp[k]);
}
/* U8_PREV() returns <0 for surrogate code points */
if(U_IS_SURROGATE(cu) ? cs>=0 : cs!=cu) {
log_err("U8_PREV(b[%ld])=U+%04lX != U+%04lX\n", (long)i, (long)cs, (long)cu);
}
/* L8_PREV() returns surrogate code points like U8_PREV_UNSAFE() */
if(cl!=cu) {
log_err("L8_PREV(b[%ld])=U+%04lX != U+%04lX\n", (long)i, (long)cl, (long)cu);
}
if(is!=iu || il !=iu) {
log_err("U8_PREV(b[%ld]) or L8_PREV(b[%ld]) did not advance the index correctly\n", (long)i, (long)i);
}
i=iu; /* go back by one UTF-8 sequence */
}
}
static void printUChars(const uint8_t *uchars, int16_t len){
int16_t i=0;
for(i=0; i<len; i++){
log_err("0x%02x ", *(uchars+i));
}
}