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Check for surrogates in NCRs

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This commit is contained in:
James Clark 1997-12-11 14:16:35 +00:00
parent cecd64f6ab
commit db6a73f853
1 changed files with 12 additions and 4 deletions
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16
expat/xmltok/xmltok.c
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@ -671,11 +671,19 @@ int XmlParseXmlDecl(int isGeneralTextEntity,
static
int checkCharRefNumber(int result)
{
/* FIXME maybe exclude surrogates as well */
if ((result < 0x80 && latin1_encoding.type[result] == BT_NONXML)
|| result == 0xFFFE
|| result == 0xFFFF)
switch (result >> 8) {
case 0xD8: case 0xD9: case 0xDA: case 0xDB:
case 0xDC: case 0xDD: case 0xDE: case 0xDF:
return -1;
case 0:
if (latin1_encoding.type[result] == BT_NONXML)
return -1;
break;
case 0xFF:
if (result == 0xFFFE || result == 0xFFFF)
return -1;
break;
}
return result;
}