U_CAPI void U_EXPORT2
ucnv_cbToUWriteSub (UConverterToUnicodeArgs *args,
int32_t offsetIndex,
UErrorCode * err)
{
static const UChar kSubstituteChar1 = 0x1A, kSubstituteChar = 0xFFFD;
/* could optimize this case, just one uchar */
if(args->converter->invalidCharLength == 1 && args->converter->subChar1 != 0) {
ucnv_cbToUWriteUChars(args, &kSubstituteChar1, 1, offsetIndex, err);
} else {
ucnv_cbToUWriteUChars(args, &kSubstituteChar, 1, offsetIndex, err);
}
}
void CIRCSocket::IcuExtToUCallback(
UConverterToUnicodeArgs* toArgs,
const char* codeUnits,
int32_t length,
UConverterCallbackReason reason,
UErrorCode* err) {
// From http://www.mirc.com/colors.html
// The Control+O key combination in mIRC inserts ascii character 15,
// which turns off all previous attributes, including color, bold, underline, and italics.
//
// \x02 bold
// \x03 mIRC-compatible color
// \x04 RRGGBB color
// \x0F normal/reset (turn off bold, colors, etc.)
// \x12 reverse (weechat)
// \x16 reverse (mirc, kvirc)
// \x1D italic
// \x1F underline
// Also see http://www.visualirc.net/tech-attrs.php
//
// Keep in sync with CUser::AddTimestamp and CIRCSocket::IcuExtFromUCallback
static const std::set<char> scAllowedChars = {'\x02', '\x03', '\x04', '\x0F', '\x12', '\x16', '\x1D', '\x1F'};
if (reason == UCNV_ILLEGAL && length == 1 && scAllowedChars.count(*codeUnits)) {
*err = U_ZERO_ERROR;
UChar c = *codeUnits;
ucnv_cbToUWriteUChars(toArgs, &c, 1, 0, err);
return;
}
Csock::IcuExtToUCallback(toArgs, codeUnits, length, reason, err);
}
static void decoderReplaceCallback(const void* rawContext,
UConverterToUnicodeArgs* toArgs, const char*, int32_t, UConverterCallbackReason,
UErrorCode* err) {
if (!rawContext) {
return;
}
const DecoderCallbackContext* context = reinterpret_cast<const DecoderCallbackContext*>(rawContext);
*err = U_ZERO_ERROR;
ucnv_cbToUWriteUChars(toArgs,context->replacementChars, context->replacementCharCount, 0, err);
}
/*uses uprv_itou to get a unicode escape sequence of the offensive sequence,
*and uses that as the substitution sequence
*/
U_CAPI void U_EXPORT2
UCNV_TO_U_CALLBACK_ESCAPE (
const void *context,
UConverterToUnicodeArgs *toArgs,
const char* codeUnits,
int32_t length,
UConverterCallbackReason reason,
UErrorCode * err)
{
UChar uniValueString[VALUE_STRING_LENGTH];
int32_t valueStringLength = 0;
int32_t i = 0;
if (reason > UCNV_IRREGULAR)
{
return;
}
if(context==NULL)
{
while (i < length)
{
uniValueString[valueStringLength++] = (UChar) UNICODE_PERCENT_SIGN_CODEPOINT; /* adding % */
uniValueString[valueStringLength++] = (UChar) UNICODE_X_CODEPOINT; /* adding X */
valueStringLength += uprv_itou (uniValueString + valueStringLength, VALUE_STRING_LENGTH - valueStringLength, (uint8_t) codeUnits[i++], 16, 2);
}
}
else
{
switch(*((char*)context))
{
case UCNV_PRV_ESCAPE_XML_DEC:
while (i < length)
{
uniValueString[valueStringLength++] = (UChar) UNICODE_AMP_CODEPOINT; /* adding & */
uniValueString[valueStringLength++] = (UChar) UNICODE_HASH_CODEPOINT; /* adding # */
valueStringLength += uprv_itou (uniValueString + valueStringLength, VALUE_STRING_LENGTH - valueStringLength, (uint8_t)codeUnits[i++], 10, 0);
uniValueString[valueStringLength++] = (UChar) UNICODE_SEMICOLON_CODEPOINT; /* adding ; */
}
break;
case UCNV_PRV_ESCAPE_XML_HEX:
while (i < length)
{
uniValueString[valueStringLength++] = (UChar) UNICODE_AMP_CODEPOINT; /* adding & */
uniValueString[valueStringLength++] = (UChar) UNICODE_HASH_CODEPOINT; /* adding # */
uniValueString[valueStringLength++] = (UChar) UNICODE_X_LOW_CODEPOINT; /* adding x */
valueStringLength += uprv_itou (uniValueString + valueStringLength, VALUE_STRING_LENGTH - valueStringLength, (uint8_t)codeUnits[i++], 16, 0);
uniValueString[valueStringLength++] = (UChar) UNICODE_SEMICOLON_CODEPOINT; /* adding ; */
}
break;
case UCNV_PRV_ESCAPE_C:
while (i < length)
{
uniValueString[valueStringLength++] = (UChar) UNICODE_RS_CODEPOINT; /* adding \ */
uniValueString[valueStringLength++] = (UChar) UNICODE_X_LOW_CODEPOINT; /* adding x */
valueStringLength += uprv_itou (uniValueString + valueStringLength, VALUE_STRING_LENGTH - valueStringLength, (uint8_t)codeUnits[i++], 16, 2);
}
break;
default:
while (i < length)
{
uniValueString[valueStringLength++] = (UChar) UNICODE_PERCENT_SIGN_CODEPOINT; /* adding % */
uniValueString[valueStringLength++] = (UChar) UNICODE_X_CODEPOINT; /* adding X */
uprv_itou (uniValueString + valueStringLength, VALUE_STRING_LENGTH - valueStringLength, (uint8_t) codeUnits[i++], 16, 2);
valueStringLength += 2;
}
}
}
/* reset the error */
*err = U_ZERO_ERROR;
ucnv_cbToUWriteUChars(toArgs, uniValueString, valueStringLength, 0, err);
}