U_NAMESPACE_BEGIN
U_CFUNC UChar U_CALLCONV
uregex_utext_unescape_charAt(int32_t offset, void *ct) {
struct URegexUTextUnescapeCharContext *context = (struct URegexUTextUnescapeCharContext *)ct;
UChar32 c;
if (offset == context->lastOffset + 1) {
c = UTEXT_NEXT32(context->text);
context->lastOffset++;
} else if (offset == context->lastOffset) {
c = UTEXT_PREVIOUS32(context->text);
UTEXT_NEXT32(context->text);
} else {
utext_moveIndex32(context->text, offset - context->lastOffset - 1);
c = UTEXT_NEXT32(context->text);
context->lastOffset = offset;
}
// !!!: Doesn't handle characters outside BMP
if (U_IS_BMP(c)) {
return (UChar)c;
} else {
return 0;
}
}
static void TestAPI(void) {
UErrorCode status = U_ZERO_ERROR;
UBool gFailed = FALSE;
(void)gFailed; /* Suppress set but not used warning. */
/* Open */
{
UText utLoc = UTEXT_INITIALIZER;
const char * cString = "\x61\x62\x63\x64";
UChar uString[] = {0x41, 0x42, 0x43, 0};
UText *uta;
UText *utb;
UChar c;
uta = utext_openUChars(NULL, uString, -1, &status);
TEST_SUCCESS(status);
c = utext_next32(uta);
TEST_ASSERT(c == 0x41);
utb = utext_close(uta);
TEST_ASSERT(utb == NULL);
uta = utext_openUTF8(&utLoc, cString, -1, &status);
TEST_SUCCESS(status);
TEST_ASSERT(uta == &utLoc);
uta = utext_close(&utLoc);
TEST_ASSERT(uta == &utLoc);
}
/* utext_clone() */
{
UChar uString[] = {0x41, 0x42, 0x43, 0};
int64_t len;
UText *uta;
UText *utb;
status = U_ZERO_ERROR;
uta = utext_openUChars(NULL, uString, -1, &status);
TEST_SUCCESS(status);
utb = utext_clone(NULL, uta, FALSE, FALSE, &status);
TEST_SUCCESS(status);
TEST_ASSERT(utb != NULL);
TEST_ASSERT(utb != uta);
len = utext_nativeLength(uta);
TEST_ASSERT(len == u_strlen(uString));
utext_close(uta);
utext_close(utb);
}
/* basic access functions */
{
UChar uString[] = {0x41, 0x42, 0x43, 0};
UText *uta;
UChar32 c;
int64_t len;
UBool b;
int64_t i;
status = U_ZERO_ERROR;
uta = utext_openUChars(NULL, uString, -1, &status);
TEST_ASSERT(uta!=NULL);
TEST_SUCCESS(status);
b = utext_isLengthExpensive(uta);
TEST_ASSERT(b==TRUE);
len = utext_nativeLength(uta);
TEST_ASSERT(len == u_strlen(uString));
b = utext_isLengthExpensive(uta);
TEST_ASSERT(b==FALSE);
c = utext_char32At(uta, 0);
TEST_ASSERT(c==uString[0]);
c = utext_current32(uta);
TEST_ASSERT(c==uString[0]);
c = utext_next32(uta);
TEST_ASSERT(c==uString[0]);
c = utext_current32(uta);
TEST_ASSERT(c==uString[1]);
c = utext_previous32(uta);
TEST_ASSERT(c==uString[0]);
c = utext_current32(uta);
TEST_ASSERT(c==uString[0]);
c = utext_next32From(uta, 1);
TEST_ASSERT(c==uString[1]);
c = utext_next32From(uta, u_strlen(uString));
TEST_ASSERT(c==U_SENTINEL);
c = utext_previous32From(uta, 2);
TEST_ASSERT(c==uString[1]);
i = utext_getNativeIndex(uta);
TEST_ASSERT(i == 1);
utext_setNativeIndex(uta, 0);
b = utext_moveIndex32(uta, 1);
TEST_ASSERT(b==TRUE);
i = utext_getNativeIndex(uta);
TEST_ASSERT(i==1);
b = utext_moveIndex32(uta, u_strlen(uString)-1);
TEST_ASSERT(b==TRUE);
i = utext_getNativeIndex(uta);
TEST_ASSERT(i==u_strlen(uString));
b = utext_moveIndex32(uta, 1);
TEST_ASSERT(b==FALSE);
i = utext_getNativeIndex(uta);
TEST_ASSERT(i==u_strlen(uString));
utext_setNativeIndex(uta, 0);
c = UTEXT_NEXT32(uta);
TEST_ASSERT(c==uString[0]);
c = utext_current32(uta);
TEST_ASSERT(c==uString[1]);
c = UTEXT_PREVIOUS32(uta);
TEST_ASSERT(c==uString[0]);
c = UTEXT_PREVIOUS32(uta);
TEST_ASSERT(c==U_SENTINEL);
utext_close(uta);
}
{
/*
* UText opened on a NULL string with zero length
*/
UText *uta;
UChar32 c;
status = U_ZERO_ERROR;
uta = utext_openUChars(NULL, NULL, 0, &status);
TEST_SUCCESS(status);
c = UTEXT_NEXT32(uta);
TEST_ASSERT(c == U_SENTINEL);
utext_close(uta);
uta = utext_openUTF8(NULL, NULL, 0, &status);
TEST_SUCCESS(status);
c = UTEXT_NEXT32(uta);
TEST_ASSERT(c == U_SENTINEL);
utext_close(uta);
}
{
/*
* extract
*/
UText *uta;
UChar uString[] = {0x41, 0x42, 0x43, 0};
UChar buf[100];
int32_t i;
/* Test pinning of input bounds */
UChar uString2[] = {0x41, 0x42, 0x43, 0x44, 0x45,
0x46, 0x47, 0x48, 0x49, 0x4A, 0};
UChar * uString2Ptr = uString2 + 5;
status = U_ZERO_ERROR;
uta = utext_openUChars(NULL, uString, -1, &status);
TEST_SUCCESS(status);
status = U_ZERO_ERROR;
i = utext_extract(uta, 0, 100, NULL, 0, &status);
TEST_ASSERT(status==U_BUFFER_OVERFLOW_ERROR);
TEST_ASSERT(i == u_strlen(uString));
status = U_ZERO_ERROR;
memset(buf, 0, sizeof(buf));
i = utext_extract(uta, 0, 100, buf, 100, &status);
TEST_SUCCESS(status);
TEST_ASSERT(i == u_strlen(uString));
i = u_strcmp(uString, buf);
TEST_ASSERT(i == 0);
utext_close(uta);
/* Test pinning of input bounds */
status = U_ZERO_ERROR;
uta = utext_openUChars(NULL, uString2Ptr, -1, &status);
TEST_SUCCESS(status);
status = U_ZERO_ERROR;
memset(buf, 0, sizeof(buf));
i = utext_extract(uta, -3, 20, buf, 100, &status);
TEST_SUCCESS(status);
TEST_ASSERT(i == u_strlen(uString2Ptr));
i = u_strcmp(uString2Ptr, buf);
TEST_ASSERT(i == 0);
utext_close(uta);
}
{
/*
* Copy, Replace, isWritable
* Can't create an editable UText from plain C, so all we
* can easily do is check that errors returned.
*/
UText *uta;
UChar uString[] = {0x41, 0x42, 0x43, 0};
UBool b;
status = U_ZERO_ERROR;
uta = utext_openUChars(NULL, uString, -1, &status);
TEST_SUCCESS(status);
b = utext_isWritable(uta);
TEST_ASSERT(b == FALSE);
b = utext_hasMetaData(uta);
TEST_ASSERT(b == FALSE);
utext_replace(uta,
0, 1, /* start, limit */
uString, -1, /* replacement, replacement length */
&status);
TEST_ASSERT(status == U_NO_WRITE_PERMISSION);
utext_copy(uta,
0, 1, /* start, limit */
2, /* destination index */
FALSE, /* move flag */
&status);
TEST_ASSERT(status == U_NO_WRITE_PERMISSION);
utext_close(uta);
}
}
