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DtHelp: Add the multibyte character support to _DtCvStrcspn.

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This commit is contained in:
Liang Chang 2021-05-26 01:14:43 +08:00
parent a9ddcffd94
commit f3949ff449
1 changed files with 49 additions and 6 deletions
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55
cde/lib/DtHelp/CvString.c
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@ -217,6 +217,8 @@ _DtCvStrcspn (
int type,
int *ret_len )
{
int i, len1, len2;
char *p1, *p2;
size_t num;
wchar_t widec[16];
const wchar_t *wcp;
@ -243,13 +245,54 @@ _DtCvStrcspn (
if (0 == type)
{
/*
* no need to go through any hassle, just use the 3C function
*/
*ret_len = strcspn ((char *) s1, s2);
if ('\0' == ((char *) s1)[*ret_len])
if (MB_CUR_MAX > 1) {
p1 = (char *) s1;
while (*p1) {
len1 = mblen(p1, MB_CUR_MAX);
if (len1 == -1) {
++p1;
continue;
}
p2 = (char *) s2;
while (*p2) {
len2 = mblen(p2, MB_CUR_MAX);
if (len2 == -1) {
++p2;
continue;
}
if (len1 == len2) {
for (i = 0; i < len2; ++i) if (p1[i] != p2[i]) break;
if (i == len2) {
*ret_len = p1 - (char *) s1;
return 0;
}
}
p2 += len2;
}
p1 += len1;
}
*ret_len = p1 - (char *) s1;
return 1;
return 0;
}
else {
/*
* no need to go through any hassle, just use the 3C function
*/
*ret_len = strcspn ((char *) s1, s2);
if ('\0' == ((char *) s1)[*ret_len])
return 1;
return 0;
}
}
/*