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msvcrt: Test and fix _mbclen/_mbslen.

This commit is contained in:
Mikolaj Zalewski 2007-08-19 22:46:56 -07:00 committed by Alexandre Julliard
parent 545f446bf3
commit cea1052f62
2 changed files with 20 additions and 9 deletions
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14
dlls/msvcrt/mbcs.c
View File

@ -356,7 +356,7 @@ unsigned char* CDECL _mbsninc(const unsigned char* str, MSVCRT_size_t num)
*/
unsigned int CDECL _mbclen(const unsigned char* str)
{
return MSVCRT_isleadbyte(*str) ? 2 : 1;
return _ismbblead(*str) ? 2 : 1;
}
/*********************************************************************
@ -379,17 +379,19 @@ int CDECL MSVCRT_mblen(const char* str, MSVCRT_size_t size)
*/
MSVCRT_size_t CDECL _mbslen(const unsigned char* str)
{
if(MSVCRT___mb_cur_max > 1)
{
MSVCRT_size_t len = 0;
while(*str)
{
str += MSVCRT_isleadbyte(*str) ? 2 : 1;
if (_ismbblead(*str))
{
str++;
if (!*str) /* count only full chars */
break;
}
str++;
len++;
}
return len;
}
return u_strlen(str); /* ASCII CP */
}
/*********************************************************************

11
dlls/msvcrt/tests/string.c
View File

@ -166,6 +166,8 @@ static void test_mbcp(void)
int mb_orig_max = __mb_cur_max;
int curr_mbcp = _getmbcp();
unsigned char *mbstring = (unsigned char *)"\xb0\xb1\xb2 \xb3\xb4 \xb5"; /* incorrect string */
unsigned char *mbstring2 = (unsigned char *)"\xb0\xb1\xb2\xb3Q\xb4\xb5"; /* correct string */
unsigned char *mbsonlylead = (unsigned char *)"\xb0";
/* some two single-byte code pages*/
test_codepage(1252);
@ -186,12 +188,19 @@ static void test_mbcp(void)
ok(_ismbbtrail('\xb0'), "\xa0 should be a trail byte\n");
ok(_ismbbtrail(' ') == FALSE, "' ' should not be a trail byte\n");
/* _mbsnextc */
expect_eq(_mbsnextc(mbstring), 0xb0b1, int, "%x");
expect_eq(_mbsnextc(&mbstring[2]), 0xb220, int, "%x"); /* lead + invalid tail */
expect_eq(_mbsnextc(&mbstring[3]), 0x20, int, "%x"); /* single char */
/* _mbclen/_mbslen */
expect_eq(_mbclen(mbstring), 2, int, "%d");
expect_eq(_mbclen(&mbstring[2]), 2, int, "%d");
expect_eq(_mbclen(&mbstring[3]), 1, int, "%d");
expect_eq(_mbslen(mbstring2), 4, int, "%d");
expect_eq(_mbslen(mbsonlylead), 0, int, "%d"); /* lead + NUL not counted as character */
expect_eq(_mbslen(mbstring), 4, int, "%d"); /* lead + invalid trail counted */
_setmbcp(curr_mbcp);
}