Determining validity of characters outside basic 7-bit range of Unicode, for XML 1.0 : XMLEncoder « XML « Java

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Java » XML » XMLEncoder 




Determining validity of characters outside basic 7-bit range of Unicode, for XML 1.0
    
// Revised from ctc wstx

/**
 * Simple utility class that encapsulates logic of determining validity
 * of characters outside basic 7-bit range of Unicode, for XML 1.0
 */
public final class XmlChars
{
    /* We don't need full 64k bits... (0x80 - 0x312C) / 32. But to
     * simplify things, let's just include first 0x80 entries in there etc
     */
    final static int SIZE = (0x3140 >> 5)// 32 bits per int

    final static int[] sXml10StartChars = new int[SIZE];
    static {
        SETBITS(sXml10StartChars, 0xC00xD6);
        SETBITS(sXml10StartChars, 0xD80xF6);
        SETBITS(sXml10StartChars, 0xF80xFF);
        SETBITS(sXml10StartChars, 0x1000x131);
        SETBITS(sXml10StartChars, 0x1340x13e);
        SETBITS(sXml10StartChars, 0x1410x148);
        SETBITS(sXml10StartChars, 0x14a0x17e);
        SETBITS(sXml10StartChars, 0x1800x1c3);
        SETBITS(sXml10StartChars, 0x1cd0x1f0);
        SETBITS(sXml10StartChars, 0x1f40x1f5);
        SETBITS(sXml10StartChars, 0x1fa0x217);
        SETBITS(sXml10StartChars, 0x2500x2a8);
        SETBITS(sXml10StartChars, 0x2bb0x2c1);
        SETBITS(sXml10StartChars, 0x386);
        SETBITS(sXml10StartChars, 0x3880x38a);
        SETBITS(sXml10StartChars, 0x38c);
        SETBITS(sXml10StartChars, 0x38e0x3a1);
        SETBITS(sXml10StartChars, 0x3a30x3ce);
        SETBITS(sXml10StartChars, 0x3d00x3d6);
        SETBITS(sXml10StartChars, 0x3da);
        SETBITS(sXml10StartChars, 0x3dc);
        SETBITS(sXml10StartChars, 0x3de);
        SETBITS(sXml10StartChars, 0x3e0);
        SETBITS(sXml10StartChars, 0x3e20x3f3);
        SETBITS(sXml10StartChars, 0x4010x40c);
        SETBITS(sXml10StartChars, 0x40e0x44f);
        SETBITS(sXml10StartChars, 0x4510x45c);
        SETBITS(sXml10StartChars, 0x45e0x481);
        SETBITS(sXml10StartChars, 0x4900x4c4);
        SETBITS(sXml10StartChars, 0x4c70x4c8);
        SETBITS(sXml10StartChars, 0x4cb0x4cc);
        SETBITS(sXml10StartChars, 0x4d00x4eb);
        SETBITS(sXml10StartChars, 0x4ee0x4f5);
        SETBITS(sXml10StartChars, 0x4f80x4f9);

        SETBITS(sXml10StartChars, 0x5310x556);
        SETBITS(sXml10StartChars, 0x559);
        SETBITS(sXml10StartChars, 0x5610x586);
        SETBITS(sXml10StartChars, 0x5d00x5ea);
        SETBITS(sXml10StartChars, 0x5f00x5f2);
        SETBITS(sXml10StartChars, 0x6210x63a);
        SETBITS(sXml10StartChars, 0x6410x64a);
        SETBITS(sXml10StartChars, 0x6710x6b7);
        SETBITS(sXml10StartChars, 0x6ba0x6be);
        SETBITS(sXml10StartChars, 0x6c00x6ce);
        SETBITS(sXml10StartChars, 0x6d00x6d3);
        SETBITS(sXml10StartChars, 0x6d5);

        SETBITS(sXml10StartChars, 0x6e50x6e6);
        SETBITS(sXml10StartChars, 0x9050x939);
        SETBITS(sXml10StartChars, 0x93d);
        SETBITS(sXml10StartChars, 0x9580x961);
        SETBITS(sXml10StartChars, 0x9850x98c);
        SETBITS(sXml10StartChars, 0x98f0x990);
        SETBITS(sXml10StartChars, 0x9930x9a8);
        SETBITS(sXml10StartChars, 0x9aa0x9b0);
        SETBITS(sXml10StartChars, 0x9b2);
        SETBITS(sXml10StartChars, 0x9b60x9b9);
        SETBITS(sXml10StartChars, 0x9dc);
        SETBITS(sXml10StartChars, 0x9dd);
        SETBITS(sXml10StartChars, 0x9df0x9e1);
        SETBITS(sXml10StartChars, 0x9f0); SETBITS(sXml10StartChars, 0x9f1);
        SETBITS(sXml10StartChars, 0xA050xA0A);
        SETBITS(sXml10StartChars, 0xA0F); SETBITS(sXml10StartChars, 0xA10);
        SETBITS(sXml10StartChars, 0xA130xA28);
        SETBITS(sXml10StartChars, 0xA2A0xA30);
        SETBITS(sXml10StartChars, 0xA32); SETBITS(sXml10StartChars, 0xA33);
        SETBITS(sXml10StartChars, 0xA35); SETBITS(sXml10StartChars, 0xA36);
        SETBITS(sXml10StartChars, 0xA38); SETBITS(sXml10StartChars, 0xA39);
        SETBITS(sXml10StartChars, 0xA590xA5C);
        SETBITS(sXml10StartChars, 0xA5E);
        SETBITS(sXml10StartChars, 0xA720xA74);
        SETBITS(sXml10StartChars, 0xA850xA8B);
        SETBITS(sXml10StartChars, 0xA8D);
        SETBITS(sXml10StartChars, 0xA8F0xA91);
        SETBITS(sXml10StartChars, 0xA930xAA8);
        SETBITS(sXml10StartChars, 0xAAA0xAB0);
        SETBITS(sXml10StartChars, 0xAB20xAB3);
        SETBITS(sXml10StartChars, 0xAB50xAB9);
        SETBITS(sXml10StartChars, 0xABD);
        SETBITS(sXml10StartChars, 0xAE0);
        SETBITS(sXml10StartChars, 0xB050xB0C);
        SETBITS(sXml10StartChars, 0xB0F); SETBITS(sXml10StartChars, 0xB10);
        SETBITS(sXml10StartChars, 0xB130xB28);

        SETBITS(sXml10StartChars, 0xB2A0xB30);
        SETBITS(sXml10StartChars, 0xB32); SETBITS(sXml10StartChars, 0xB33);
        SETBITS(sXml10StartChars, 0xB360xB39);
        SETBITS(sXml10StartChars, 0xB3D);
        SETBITS(sXml10StartChars, 0xB5C); SETBITS(sXml10StartChars, 0xB5D);
        SETBITS(sXml10StartChars, 0xB5F0xB61);
        SETBITS(sXml10StartChars, 0xB850xB8A);
        SETBITS(sXml10StartChars, 0xB8E0xB90);

        SETBITS(sXml10StartChars, 0xB920xB95);
        SETBITS(sXml10StartChars, 0xB990xB9A);
        SETBITS(sXml10StartChars, 0xB9C);
        SETBITS(sXml10StartChars, 0xB9E); SETBITS(sXml10StartChars, 0xB9F);
        SETBITS(sXml10StartChars, 0xBA3); SETBITS(sXml10StartChars, 0xBA4);
        SETBITS(sXml10StartChars, 0xBA80xBAA);
        SETBITS(sXml10StartChars, 0xBAE0xBB5);
        SETBITS(sXml10StartChars, 0xBB70xBB9);
        SETBITS(sXml10StartChars, 0xC050xC0C);
        SETBITS(sXml10StartChars, 0xC0E0xC10);

        SETBITS(sXml10StartChars, 0xC120xC28);
        SETBITS(sXml10StartChars, 0xC2A0xC33);
        SETBITS(sXml10StartChars, 0xC350xC39);
        SETBITS(sXml10StartChars, 0xC60); SETBITS(sXml10StartChars, 0xC61);
        SETBITS(sXml10StartChars, 0xC850xC8C);
        SETBITS(sXml10StartChars, 0xC8E0xC90);
        SETBITS(sXml10StartChars, 0xC920xCA8);
        SETBITS(sXml10StartChars, 0xCAA0xCB3);
        SETBITS(sXml10StartChars, 0xCB50xCB9);
        SETBITS(sXml10StartChars, 0xCDE);
        SETBITS(sXml10StartChars, 0xCE0); SETBITS(sXml10StartChars, 0xCE1);
        SETBITS(sXml10StartChars, 0xD050xD0C);
        SETBITS(sXml10StartChars, 0xD0E0xD10);
        SETBITS(sXml10StartChars, 0xD120xD28);
        SETBITS(sXml10StartChars, 0xD2A0xD39);
        SETBITS(sXml10StartChars, 0xD60); SETBITS(sXml10StartChars, 0xD61);
        SETBITS(sXml10StartChars, 0xE010xE2E);
        SETBITS(sXml10StartChars, 0xE30);
        SETBITS(sXml10StartChars, 0xE32); SETBITS(sXml10StartChars, 0xE33);
        SETBITS(sXml10StartChars, 0xE400xE45);
        SETBITS(sXml10StartChars, 0xE81); SETBITS(sXml10StartChars, 0xE82);
        SETBITS(sXml10StartChars, 0xE84);
        SETBITS(sXml10StartChars, 0xE87); SETBITS(sXml10StartChars, 0xE88);
        SETBITS(sXml10StartChars, 0xE8A); SETBITS(sXml10StartChars, 0xE8D);
        SETBITS(sXml10StartChars, 0xE940xE97);
        SETBITS(sXml10StartChars, 0xE990xE9F);
        SETBITS(sXml10StartChars, 0xEA10xEA3);
        SETBITS(sXml10StartChars, 0xEA5); SETBITS(sXml10StartChars, 0xEA7);
        SETBITS(sXml10StartChars, 0xEAA); SETBITS(sXml10StartChars, 0xEAB);
        SETBITS(sXml10StartChars, 0xEAD); SETBITS(sXml10StartChars, 0xEAE);
        SETBITS(sXml10StartChars, 0xEB0);
        SETBITS(sXml10StartChars, 0xEB2); SETBITS(sXml10StartChars, 0xEB3);
        SETBITS(sXml10StartChars, 0xEBD);

        SETBITS(sXml10StartChars, 0xEC00xEC4);
        SETBITS(sXml10StartChars, 0xF400xF47);
        SETBITS(sXml10StartChars, 0xF490xF69);
        SETBITS(sXml10StartChars, 0x10a00x10c5);
        SETBITS(sXml10StartChars, 0x10d00x10f6);
        SETBITS(sXml10StartChars, 0x1100);
        SETBITS(sXml10StartChars, 0x11020x1103);
        SETBITS(sXml10StartChars, 0x11050x1107);
        SETBITS(sXml10StartChars, 0x1109);
        SETBITS(sXml10StartChars, 0x110b0x110c);
        SETBITS(sXml10StartChars, 0x110e0x1112);
        SETBITS(sXml10StartChars, 0x113c);
        SETBITS(sXml10StartChars, 0x113e);
        SETBITS(sXml10StartChars, 0x1140);
        SETBITS(sXml10StartChars, 0x114c);
        SETBITS(sXml10StartChars, 0x114e);
        SETBITS(sXml10StartChars, 0x1150);
        SETBITS(sXml10StartChars, 0x11540x1155);
        SETBITS(sXml10StartChars, 0x1159);
        SETBITS(sXml10StartChars, 0x115f0x1161);
        SETBITS(sXml10StartChars, 0x1163);
        SETBITS(sXml10StartChars, 0x1165);
        SETBITS(sXml10StartChars, 0x1167);
        SETBITS(sXml10StartChars, 0x1169);
        SETBITS(sXml10StartChars, 0x116d0x116e);
        SETBITS(sXml10StartChars, 0x11720x1173);
        SETBITS(sXml10StartChars, 0x1175);
        SETBITS(sXml10StartChars, 0x119e);
        SETBITS(sXml10StartChars, 0x11a8);
        SETBITS(sXml10StartChars, 0x11ab);
        SETBITS(sXml10StartChars, 0x11ae0x11af);
        SETBITS(sXml10StartChars, 0x11b70x11b8);
        SETBITS(sXml10StartChars, 0x11ba);
        SETBITS(sXml10StartChars, 0x11bc0x11c2);
        SETBITS(sXml10StartChars, 0x11eb);
        SETBITS(sXml10StartChars, 0x11f0);
        SETBITS(sXml10StartChars, 0x11f9);
        SETBITS(sXml10StartChars, 0x1e000x1e9b);
        SETBITS(sXml10StartChars, 0x1ea00x1ef9);
        SETBITS(sXml10StartChars, 0x1f000x1f15);
        SETBITS(sXml10StartChars, 0x1f180x1f1d);
        SETBITS(sXml10StartChars, 0x1f200x1f45);
        SETBITS(sXml10StartChars, 0x1f480x1f4d);
        SETBITS(sXml10StartChars, 0x1f500x1f57);
        SETBITS(sXml10StartChars, 0x1f59);
        SETBITS(sXml10StartChars, 0x1f5b);
        SETBITS(sXml10StartChars, 0x1f5d);
        SETBITS(sXml10StartChars, 0x1f5f0x1f7d);
        SETBITS(sXml10StartChars, 0x1f800x1fb4);
        SETBITS(sXml10StartChars, 0x1fb60x1fbc);
        SETBITS(sXml10StartChars, 0x1fbe);
        SETBITS(sXml10StartChars, 0x1fc20x1fc4);
        SETBITS(sXml10StartChars, 0x1fc60x1fcc);
        SETBITS(sXml10StartChars, 0x1fd00x1fd3);
        SETBITS(sXml10StartChars, 0x1fd60x1fdb);
        SETBITS(sXml10StartChars, 0x1fe00x1fec);
        SETBITS(sXml10StartChars, 0x1ff20x1ff4);
        SETBITS(sXml10StartChars, 0x1ff60x1ffc);
        SETBITS(sXml10StartChars, 0x2126);
        SETBITS(sXml10StartChars, 0x212a0x212b);
        SETBITS(sXml10StartChars, 0x212e);
        SETBITS(sXml10StartChars, 0x21800x2182);
        SETBITS(sXml10StartChars, 0x30410x3094);
        SETBITS(sXml10StartChars, 0x30a10x30fa);
        SETBITS(sXml10StartChars, 0x31050x312c);
        // note: AC00 - D7A3 handled separately

        // [86] Ideographic (but note: > 0x312c handled separately)
        SETBITS(sXml10StartChars, 0x3007);
        SETBITS(sXml10StartChars, 0x30210x3029);
    }

    final static int[] sXml10Chars = new int[SIZE];
    static {
        // Let's start with all valid start chars:
        System.arraycopy(sXml10StartChars, 0, sXml10Chars, 0, SIZE);

        // [87] CombiningChar    ::=
        SETBITS(sXml10Chars, 0x3000x345);
        SETBITS(sXml10Chars, 0x3600x361);
        SETBITS(sXml10Chars, 0x4830x486);
        SETBITS(sXml10Chars, 0x5910x5a1);
        SETBITS(sXml10Chars, 0x5a30x5b9);
        SETBITS(sXml10Chars, 0x5bb0x5bd);
        SETBITS(sXml10Chars, 0x5bf);

        SETBITS(sXml10Chars, 0x5c10x5c2);
        SETBITS(sXml10Chars, 0x5c4);
        SETBITS(sXml10Chars, 0x64b0x652);
        SETBITS(sXml10Chars, 0x670);
        SETBITS(sXml10Chars, 0x6d60x6dc);
        SETBITS(sXml10Chars, 0x6dd0x6df);
        SETBITS(sXml10Chars, 0x6e00x6e4);
        SETBITS(sXml10Chars, 0x6e70x6e8);
        SETBITS(sXml10Chars, 0x6ea0x6ed);

        SETBITS(sXml10Chars, 0x9010x903);
        SETBITS(sXml10Chars, 0x93c);
        SETBITS(sXml10Chars, 0x93e0x94c);
        SETBITS(sXml10Chars, 0x94d);
        SETBITS(sXml10Chars, 0x9510x954);
        SETBITS(sXml10Chars, 0x962); SETBITS(sXml10Chars, 0x963);
        SETBITS(sXml10Chars, 0x9810x983);
        SETBITS(sXml10Chars, 0x9bc);
        SETBITS(sXml10Chars, 0x9be); SETBITS(sXml10Chars, 0x9bf);
        SETBITS(sXml10Chars, 0x9c00x9c4);
        SETBITS(sXml10Chars, 0x9c7); SETBITS(sXml10Chars, 0x9c8);
        SETBITS(sXml10Chars, 0x9cb0x9cd);
        SETBITS(sXml10Chars, 0x9d7);
        SETBITS(sXml10Chars, 0x9e2); SETBITS(sXml10Chars, 0x9e3);
        SETBITS(sXml10Chars, 0xA02);
        SETBITS(sXml10Chars, 0xA3C);
        SETBITS(sXml10Chars, 0xA3E); SETBITS(sXml10Chars, 0xA3F);
        SETBITS(sXml10Chars, 0xA400xA42);
        SETBITS(sXml10Chars, 0xA47); SETBITS(sXml10Chars, 0xA48);
        SETBITS(sXml10Chars, 0xA4B0xA4D);
        SETBITS(sXml10Chars, 0xA70); SETBITS(sXml10Chars, 0xA71);
        SETBITS(sXml10Chars, 0xA810xA83);
        SETBITS(sXml10Chars, 0xABC);
        SETBITS(sXml10Chars, 0xABE0xAC5);
        SETBITS(sXml10Chars, 0xAC70xAC9);
        SETBITS(sXml10Chars, 0xACB0xACD);
        SETBITS(sXml10Chars, 0xB010xB03);
        SETBITS(sXml10Chars, 0xB3C);
        SETBITS(sXml10Chars, 0xB3E0xB43);
        SETBITS(sXml10Chars, 0xB47); SETBITS(sXml10Chars, 0xB48);
        SETBITS(sXml10Chars, 0xB4B0xB4D);
        SETBITS(sXml10Chars, 0xB56); SETBITS(sXml10Chars, 0xB57);
        SETBITS(sXml10Chars, 0xB82); SETBITS(sXml10Chars, 0xB83);
        SETBITS(sXml10Chars, 0xBBE0xBC2);
        SETBITS(sXml10Chars, 0xBC60xBC8);
        SETBITS(sXml10Chars, 0xBCA0xBCD);
        SETBITS(sXml10Chars, 0xBD7);
        SETBITS(sXml10Chars, 0xC010xC03);
        SETBITS(sXml10Chars, 0xC3E0xC44);
        SETBITS(sXml10Chars, 0xC460xC48);
        SETBITS(sXml10Chars, 0xC4A0xC4D);
        SETBITS(sXml10Chars, 0xC550xC56);
        SETBITS(sXml10Chars, 0xC820xC83);
        SETBITS(sXml10Chars, 0xCBE0xCC4);
        SETBITS(sXml10Chars, 0xCC60xCC8);
        SETBITS(sXml10Chars, 0xCCA0xCCD);
        SETBITS(sXml10Chars, 0xCD50xCD6);
        SETBITS(sXml10Chars, 0xD020xD03);
        SETBITS(sXml10Chars, 0xD3E0xD43);
        SETBITS(sXml10Chars, 0xD460xD48);
        SETBITS(sXml10Chars, 0xD4A0xD4D);
        SETBITS(sXml10Chars, 0xD57);
        SETBITS(sXml10Chars, 0xE31);
        SETBITS(sXml10Chars, 0xE340xE3A);
        SETBITS(sXml10Chars, 0xE470xE4E);
        SETBITS(sXml10Chars, 0xEB1);
        SETBITS(sXml10Chars, 0xEB40xEB9);
        SETBITS(sXml10Chars, 0xEBB0xEBC);
        SETBITS(sXml10Chars, 0xEC80xECD);
        SETBITS(sXml10Chars, 0xF180xF19);
        SETBITS(sXml10Chars, 0xF35); SETBITS(sXml10Chars, 0xF37);
        SETBITS(sXml10Chars, 0xF39);
        SETBITS(sXml10Chars, 0xF3E); SETBITS(sXml10Chars, 0xF3F);
        SETBITS(sXml10Chars, 0xF710xF84);
        SETBITS(sXml10Chars, 0xF860xF8B);
        SETBITS(sXml10Chars, 0xF900xF95);
        SETBITS(sXml10Chars, 0xF97);
        SETBITS(sXml10Chars, 0xF990xFAD);
        SETBITS(sXml10Chars, 0xFB10xFB7);
        SETBITS(sXml10Chars, 0xFB9);
        SETBITS(sXml10Chars, 0x20D00x20DC);
        SETBITS(sXml10Chars, 0x20E1);
        SETBITS(sXml10Chars, 0x302A0x302F);
        SETBITS(sXml10Chars, 0x3099); SETBITS(sXml10Chars, 0x309A);
        // [88] Digit:
        SETBITS(sXml10Chars, 0x6600x669);
        SETBITS(sXml10Chars, 0x6f00x6f9);
        SETBITS(sXml10Chars, 0x9660x96f);
        SETBITS(sXml10Chars, 0x9e60x9ef);
        SETBITS(sXml10Chars, 0xa660xa6f);
        SETBITS(sXml10Chars, 0xae60xaef);
        SETBITS(sXml10Chars, 0xb660xb6f);
        SETBITS(sXml10Chars, 0xbe70xbef);
        SETBITS(sXml10Chars, 0xc660xc6f);
        SETBITS(sXml10Chars, 0xce60xcef);
        SETBITS(sXml10Chars, 0xd660xd6f);
        SETBITS(sXml10Chars, 0xe500xe59);
        SETBITS(sXml10Chars, 0xed00xed9);
        SETBITS(sXml10Chars, 0xf200xf29);
        
        // [89] Extender:
        SETBITS(sXml10Chars, 0xb7);
        SETBITS(sXml10Chars, 0x2d0);
        SETBITS(sXml10Chars, 0x2d1);
        SETBITS(sXml10Chars, 0x387);
        SETBITS(sXml10Chars, 0x640);
        SETBITS(sXml10Chars, 0xE46);
        SETBITS(sXml10Chars, 0xEC6);
        SETBITS(sXml10Chars, 0x3005);
        SETBITS(sXml10Chars, 0x30310x3035);
        SETBITS(sXml10Chars, 0x309d0x309e);
        SETBITS(sXml10Chars, 0x30fc0x30fe);
    }
    
    private XmlChars() { }

    public final static boolean is10NameStartChar(char c)
    {
        // First, let's deal with outliers
        if (c > 0x312C) { // Most valid chars are below this..
            if (c < 0xAC00) {
                return (c >= 0x4E00 && c <= 0x9FA5)// valid ideograms
            }
            if (c <= 0xD7A3) { // 0xAC00 - 0xD7A3, valid base chars
                return true;
            }
            /* As to surrogate pairs... let's do the bare minimum;
             * 0xD800 - 0xDBFF (high surrogate) are ok; low surrogates
             * can only follow high one
             */
            return (c <= 0xDBFF && c >= 0xD800);
        }
        // but then we'll just need to use the table...
        int ix = (intc;
        return (sXml10StartChars[ix >> 5(<< (ix & 31))) != 0;
    }

    public final static boolean is10NameChar(char c)
    {
        // First, let's deal with outliers
        if (c > 0x312C) { // Most valid chars are below this..
            if (c < 0xAC00) {
                return (c >= 0x4E00 && c <= 0x9FA5)// valid ideograms
            }
            if (c <= 0xD7A3) { // 0xAC00 - 0xD7A3, valid base chars
                return true;
            }
            /* As to surrogate pairs... let's do the bare minimum;
             * 0xD800 - 0xDFFF (high, low surrogate) are ok (need to
             * check pairing in future)
             */
            return (c >= 0xD800 && c <= 0xDFFF);
        }
        // but then we'll just need to use the table...
        int ix = (intc;
        return (sXml10Chars[ix >> 5(<< (ix & 31))) != 0;
    }

    public final static boolean is11NameStartChar(char c)
    {
        // Others are checked block-by-block:
        if (c <= 0x2FEF) {
            if (c < 0x300) {
                if (c < 0x00C0) { // 8-bit ctrl chars
                    return false;
                }
                // most of the rest are fine...
                return (c != 0xD7 && c != 0xF7);
            }
            if (c >= 0x2C00) {
                // 0x2C00 - 0x2FEF are ok
                return true;
            }
            if (c < 0x370 || c > 0x218F) {
                // 0x300 - 0x36F, 0x2190 - 0x2BFF invalid
                return false;
            }
            if (c < 0x2000) {
                // 0x370 - 0x37D, 0x37F - 0x1FFF are ok
                return (c != 0x37E);
            }
            if (c >= 0x2070) {
                // 0x2070 - 0x218F are ok
                return (c <= 0x218F);
            }
            // And finally, 0x200C - 0x200D
            return (c == 0x200C || c == 0x200D);
        }

        // 0x3000 and above:
        if (c >= 0x3001) {
            /* Hmmh, let's allow high surrogates here, without checking
             * that they are properly followed... crude basic support,
             * I know, but allows valid combinations, just doesn't catch
             * invalid ones
             */
            if (c <= 0xDBFF) { // 0x3001 - 0xD7FF (chars),
                // 0xD800 - 0xDBFF (high surrogate) are ok (unlike DC00-DFFF)
                return true;
            }
            if (c >= 0xF900 && c <= 0xFFFD) {
                /* Check above removes low surrogate (since one can not
                 * START an identifier), and byte-order markers..
                 */
                return (c <= 0xFDCF || c >= 0xFDF0);
            }
        }

        return false;
    }

    public final static boolean is11NameChar(char c)
    {
        // Others are checked block-by-block:
        if (c <= 0x2FEF) {
            if (c < 0x2000) { // only 8-bit ctrl chars and 0x37E to filter out
                return (c >= 0x00C0 && c != 0x37E|| (c == 0xB7);
            }
            if (c >= 0x2C00) {
                // 0x100 - 0x1FFF, 0x2C00 - 0x2FEF are ok
                return true;
            }
            if (c < 0x200C || c > 0x218F) {
                // 0x2000 - 0x200B, 0x2190 - 0x2BFF invalid
                return false;
            }
            if (c >= 0x2070) {
                // 0x2070 - 0x218F are ok
                return true;
            }
            // And finally, 0x200C - 0x200D, 0x203F - 0x2040 are ok
            return (c == 0x200C || c == 0x200D
                || c == 0x203F || c == 0x2040);
        }

        // 0x3000 and above:
        if (c >= 0x3001) {
            /* Hmmh, let's allow surrogate heres, without checking that
             * they have proper ordering. For non-first name chars, both are
             * ok, for valid names. Crude basic support,
             * I know, but allows valid combinations, just doesn't catch
             * invalid ones
             */
            if (c <= 0xDFFF) { // 0x3001 - 0xD7FF (chars),
                // 0xD800 - 0xDFFF (high, low surrogate) are ok:
                return true;
            }
            if (c >= 0xF900 && c <= 0xFFFD) {
                /* Check above removes other invalid chars (below valid
                 * range), and byte-order markers (0xFFFE, 0xFFFF).
                 */
                return (c <= 0xFDCF || c >= 0xFDF0);
            }
        }

        return false;
    }

    private static void SETBITS(int[] array, int start, int end)
    {
        int bit1 = (start & 31);
        int bit2 = (end 31);
        start >>= 5;
        end >>= 5;

        /* Ok; this is not perfectly optimal, but should be good enough...
         * we'll only do one-by-one at the ends.
         */
        if (start == end) {
            for (; bit1 <= bit2; ++bit1) {
                array[start|= (<< bit1);
            }
        else {
            for (int bit = bit1; bit <= 31; ++bit) {
                array[start|= (<< bit);
            }
            while (++start < end) {
                array[start= -1;
            }
            for (int bit = 0; bit <= bit2; ++bit) {
                array[end|= (<< bit);
            }
        }
    }

    private static void SETBITS(int[] array, int point) {
        int ix = (point >> 5);
        int bit = (point & 31);

        array[ix|= (<< bit);
    }
}

   
    
    
    
  














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