/*=================================================================================
=================================================================================*/
PRIVATE PRBool uCheckAndScan2ByteGRPrefix8F(
uShiftTable *shift,
PRInt32* state,
unsigned char *in,
PRUint16 *out,
PRUint32 inbuflen,
PRUint32* inscanlen
)
{
if((inbuflen < 3) ||(in[0] != 0x8F))
return PR_FALSE;
else if (! CHK_GR94(in[1])) /* 2nd byte range check */
{
*inscanlen = 2;
*out = 0xFF; /* for 2-byte table, uMap() is guaranteed to fail for 0xFF. */
return PR_TRUE;
}
else if (! CHK_GR94(in[2])) /* 3rd byte range check */
{
*inscanlen = 3;
*out = 0xFF; /* for 2-byte table, uMap() is guaranteed to fail for 0xFF. */
return PR_TRUE;
}
else
{
*inscanlen = 3;
*out = (((in[1] << 8) | ( in[2])) & 0x7F7F);
return PR_TRUE;
}
}
/*=================================================================================
=================================================================================*/
int uCheckAndScan2ByteGRPrefix8F(
int32_t* state,
unsigned char *in,
uint16_t *out,
uint32_t inbuflen,
uint32_t* inscanlen
)
{
if((inbuflen < 3) ||(in[0] != 0x8F))
return 0;
else if (! CHK_GR94(in[1])) /* 2nd byte range check */
{
*inscanlen = 2;
*out = 0xFF; /* for 2-byte table, uMap() is guaranteed to fail for 0xFF. */
return 1;
}
else if (! CHK_GR94(in[2])) /* 3rd byte range check */
{
*inscanlen = 3;
*out = 0xFF; /* for 2-byte table, uMap() is guaranteed to fail for 0xFF. */
return 1;
}
else
{
*inscanlen = 3;
*out = (((in[1] << 8) | ( in[2])) & 0x7F7F);
return 1;
}
}
/*=================================================================================
=================================================================================*/
PRIVATE PRBool uCheckAndScanAlways2ByteShiftGR(
uShiftTable *shift,
PRInt32* state,
unsigned char *in,
PRUint16 *out,
PRUint32 inbuflen,
PRUint32* inscanlen
)
{
/*
* Both bytes should be in the range of [0xa1,0xfe] for 94x94 character sets
* invoked on GR. No encoding implemented in Mozilla uses 96x96 char. sets.
* Only 2nd byte range needs to be checked because
* 1st byte is checked before calling this in nsUnicodeDecoerHelper.cpp
*/
if(inbuflen < 2) /* will lead to NS_OK_UDEC_MOREINPUT */
return PR_FALSE;
else if (! CHK_GR94(in[1]))
{
*inscanlen = 2;
*out = 0xFF; /* for 2-byte table, uMap() is guaranteed to fail for 0xFF. */
return PR_TRUE;
}
else
{
*inscanlen = 2;
*out = (((in[0] << 8) | ( in[1])) & 0x7F7F);
return PR_TRUE;
}
}
