2022-08-29 16:29:03 +08:00
|
|
|
#include "re_config.h"
|
2022-08-29 11:36:29 +08:00
|
|
|
#include "pcre_internal.h"
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*************************************************
|
|
|
|
|
* Convert character value to UTF-8 *
|
|
|
|
|
*************************************************/
|
|
|
|
|
|
|
|
|
|
/* This function takes an integer value in the range 0 - 0x7fffffff
|
|
|
|
|
and encodes it as a UTF-8 character in 0 to 6 bytes.
|
|
|
|
|
|
|
|
|
|
Arguments:
|
|
|
|
|
cvalue the character value
|
|
|
|
|
buffer pointer to buffer for result - at least 6 bytes long
|
|
|
|
|
|
|
|
|
|
Returns: number of characters placed in the buffer
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
_pcre_ord2utf8(int cvalue, uschar *buffer)
|
|
|
|
|
{
|
|
|
|
|
#ifdef SUPPORT_UTF8
|
|
|
|
|
register int i, j;
|
|
|
|
|
for (i = 0; i < _pcre_utf8_table1_size; i++)
|
|
|
|
|
if (cvalue <= _pcre_utf8_table1[i]) break;
|
|
|
|
|
buffer += i;
|
|
|
|
|
for (j = i; j > 0; j--)
|
|
|
|
|
{
|
|
|
|
|
*buffer-- = 0x80 | (cvalue & 0x3f);
|
|
|
|
|
cvalue >>= 6;
|
|
|
|
|
}
|
|
|
|
|
*buffer = _pcre_utf8_table2[i] | cvalue;
|
|
|
|
|
return i + 1;
|
|
|
|
|
#else
|
|
|
|
|
return 0; /* Keep compiler happy; this function won't ever be */
|
|
|
|
|
#endif /* called when SUPPORT_UTF8 is not defined. */
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* End of pcre_ord2utf8.c */
|
