+void
+UTS46::checkLabelContextO(const UChar *label, int32_t labelLength, IDNAInfo &info) const {
+ int32_t labelEnd=labelLength-1; // inclusive
+ int32_t arabicDigits=0; // -1 for 066x, +1 for 06Fx
+ for(int32_t i=0; i<=labelEnd; ++i) {
+ UChar32 c=label[i];
+ if(c<0xb7) {
+ // ASCII fastpath
+ } else if(c<=0x6f9) {
+ if(c==0xb7) {
+ // Appendix A.3. MIDDLE DOT (U+00B7)
+ // Rule Set:
+ // False;
+ // If Before(cp) .eq. U+006C And
+ // After(cp) .eq. U+006C Then True;
+ if(!(0<i && label[i-1]==0x6c &&
+ i<labelEnd && label[i+1]==0x6c)) {
+ info.labelErrors|=UIDNA_ERROR_CONTEXTO_PUNCTUATION;
+ }
+ } else if(c==0x375) {
+ // Appendix A.4. GREEK LOWER NUMERAL SIGN (KERAIA) (U+0375)
+ // Rule Set:
+ // False;
+ // If Script(After(cp)) .eq. Greek Then True;
+ UScriptCode script=USCRIPT_INVALID_CODE;
+ if(i<labelEnd) {
+ UErrorCode errorCode=U_ZERO_ERROR;
+ int32_t j=i+1;
+ U16_NEXT(label, j, labelLength, c);
+ script=uscript_getScript(c, &errorCode);
+ }
+ if(script!=USCRIPT_GREEK) {
+ info.labelErrors|=UIDNA_ERROR_CONTEXTO_PUNCTUATION;
+ }
+ } else if(c==0x5f3 || c==0x5f4) {
+ // Appendix A.5. HEBREW PUNCTUATION GERESH (U+05F3)
+ // Rule Set:
+ // False;
+ // If Script(Before(cp)) .eq. Hebrew Then True;
+ //
+ // Appendix A.6. HEBREW PUNCTUATION GERSHAYIM (U+05F4)
+ // Rule Set:
+ // False;
+ // If Script(Before(cp)) .eq. Hebrew Then True;
+ UScriptCode script=USCRIPT_INVALID_CODE;
+ if(0<i) {
+ UErrorCode errorCode=U_ZERO_ERROR;
+ int32_t j=i;
+ U16_PREV(label, 0, j, c);
+ script=uscript_getScript(c, &errorCode);
+ }
+ if(script!=USCRIPT_HEBREW) {
+ info.labelErrors|=UIDNA_ERROR_CONTEXTO_PUNCTUATION;
+ }
+ } else if(0x660<=c /* && c<=0x6f9 */) {
+ // Appendix A.8. ARABIC-INDIC DIGITS (0660..0669)
+ // Rule Set:
+ // True;
+ // For All Characters:
+ // If cp .in. 06F0..06F9 Then False;
+ // End For;
+ //
+ // Appendix A.9. EXTENDED ARABIC-INDIC DIGITS (06F0..06F9)
+ // Rule Set:
+ // True;
+ // For All Characters:
+ // If cp .in. 0660..0669 Then False;
+ // End For;
+ if(c<=0x669) {
+ if(arabicDigits>0) {
+ info.labelErrors|=UIDNA_ERROR_CONTEXTO_DIGITS;
+ }
+ arabicDigits=-1;
+ } else if(0x6f0<=c) {
+ if(arabicDigits<0) {
+ info.labelErrors|=UIDNA_ERROR_CONTEXTO_DIGITS;
+ }
+ arabicDigits=1;
+ }
+ }
+ } else if(c==0x30fb) {
+ // Appendix A.7. KATAKANA MIDDLE DOT (U+30FB)
+ // Rule Set:
+ // False;
+ // For All Characters:
+ // If Script(cp) .in. {Hiragana, Katakana, Han} Then True;
+ // End For;
+ UErrorCode errorCode=U_ZERO_ERROR;
+ for(int j=0;;) {
+ if(j>labelEnd) {
+ info.labelErrors|=UIDNA_ERROR_CONTEXTO_PUNCTUATION;
+ break;
+ }
+ U16_NEXT(label, j, labelLength, c);
+ UScriptCode script=uscript_getScript(c, &errorCode);
+ if(script==USCRIPT_HIRAGANA || script==USCRIPT_KATAKANA || script==USCRIPT_HAN) {
+ break;
+ }
+ }
+ }
+ }
+}
+
projects / apple / icu.git / blobdiff