SysReAllocString(BSTR FAR* pbstr, const OLECHAR FAR* psz)
{
if(psz == NULL)
{
SysFreeString(*pbstr);
*pbstr = NULL;
return TRUE;
}
return SysReAllocStringLen(pbstr, psz, STRLEN(psz));
}
CMarkdown::HSTR CMarkdown::_HSTR::Entities()
{
HSTR H = this;
BSTR p, q = H->B;
while (*(p = q))
{
OLECHAR *value = 0;
switch (*p)
{
case '&': value = L"&"; break;
case '"': value = L"""; break;
case '\'': value = L"'"; break;
case '<' : value = L"<"; break;
case '>' : value = L">"; break;
}
++q;
if (value)
{
int i = p - H->B;
int j = q - H->B;
int cchValue = lstrlenW(value);
if (int cchGrow = cchValue - 1)
{
BSTR B = H->B;
int b = SysStringLen(B);
size_t cbMove = (b - j) * sizeof(OLECHAR);
if (cchGrow < 0)
{
memmove(q + cchGrow, q, cbMove);
}
if (!SysReAllocStringLen(&B, B, b + cchGrow))
{
continue;
}
H = (HSTR)B;
p = H->B + i;
q = H->B + j;
if (cchGrow > 0)
{
memmove(q + cchGrow, q, cbMove);
}
}
memcpy(p, value, cchValue * sizeof(OLECHAR));
q = p + cchValue;
}
}
return H;
}
