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XML11EntityScanner.javaAPI DocApache Xerces 3.0.160995Fri Sep 14 20:33:56 BST 2007org.apache.xerces.impl

XML11EntityScanner

public class XML11EntityScanner extends XMLEntityScanner
Implements the entity scanner methods in the context of XML 1.1.
xerces.internal
author
Michael Glavassevich, IBM
author
Neil Graham, IBM
version
$Id: XML11EntityScanner.java 568406 2007-08-22 04:22:40Z mrglavas $

Fields Summary
Constructors Summary
public XML11EntityScanner()
Default constructor.

        super();
    
Methods Summary
public intpeekChar()
Returns the next character on the input.

Note: The character is not consumed.

throws
IOException Thrown if i/o error occurs.
throws
EOFException Thrown on end of file.


        // load more characters, if needed
        if (fCurrentEntity.position == fCurrentEntity.count) {
            load(0, true);
        }

        // peek at character
        int c = fCurrentEntity.ch[fCurrentEntity.position];

        // return peeked character
        if (fCurrentEntity.isExternal()) {
            return (c != '\r" && c != 0x85 && c != 0x2028) ? c : '\n";
        }
        else {
            return c;
        }

    
public intscanChar()
Returns the next character on the input.

Note: The character is consumed.

throws
IOException Thrown if i/o error occurs.
throws
EOFException Thrown on end of file.


        // load more characters, if needed
        if (fCurrentEntity.position == fCurrentEntity.count) {
            load(0, true);
        }

        // scan character
        int c = fCurrentEntity.ch[fCurrentEntity.position++];
        boolean external = false;
        if (c == '\n" ||
            ((c == '\r" || c == 0x85 || c == 0x2028) && (external = fCurrentEntity.isExternal()))) {
            fCurrentEntity.lineNumber++;
            fCurrentEntity.columnNumber = 1;
            if (fCurrentEntity.position == fCurrentEntity.count) {
                fCurrentEntity.ch[0] = (char)c;
                load(1, false);
            }
            if (c == '\r" && external) {
                int cc = fCurrentEntity.ch[fCurrentEntity.position++];
                if (cc != '\n" && cc != 0x85) {
                    fCurrentEntity.position--;
                }
            }
            c = '\n";
        }

        // return character that was scanned
        fCurrentEntity.columnNumber++;
        return c;

    
public intscanContent(org.apache.xerces.xni.XMLString content)
Scans a range of parsed character data, setting the fields of the XMLString structure, appropriately.

Note: The characters are consumed.

Note: This method does not guarantee to return the longest run of parsed character data. This method may return before markup due to reaching the end of the input buffer or any other reason.

Note: The fields contained in the XMLString structure are not guaranteed to remain valid upon subsequent calls to the entity scanner. Therefore, the caller is responsible for immediately using the returned character data or making a copy of the character data.

param
content The content structure to fill.
return
Returns the next character on the input, if known. This value may be -1 but this does note designate end of file.
throws
IOException Thrown if i/o error occurs.
throws
EOFException Thrown on end of file.


        // load more characters, if needed
        if (fCurrentEntity.position == fCurrentEntity.count) {
            load(0, true);
        }
        else if (fCurrentEntity.position == fCurrentEntity.count - 1) {
            fCurrentEntity.ch[0] = fCurrentEntity.ch[fCurrentEntity.count - 1];
            load(1, false);
            fCurrentEntity.position = 0;
            fCurrentEntity.startPosition = 0;
        }

        // normalize newlines
        int offset = fCurrentEntity.position;
        int c = fCurrentEntity.ch[offset];
        int newlines = 0;
        boolean external = fCurrentEntity.isExternal();
        if (c == '\n" || ((c == '\r" || c == 0x85 || c == 0x2028) && external)) {
            do {
                c = fCurrentEntity.ch[fCurrentEntity.position++];
                if ((c == '\r" ) && external) {
                    newlines++;
                    fCurrentEntity.lineNumber++;
                    fCurrentEntity.columnNumber = 1;
                    if (fCurrentEntity.position == fCurrentEntity.count) {
                        offset = 0;
                        fCurrentEntity.baseCharOffset += (fCurrentEntity.position - fCurrentEntity.startPosition);
                        fCurrentEntity.position = newlines;
                        fCurrentEntity.startPosition = newlines;
                        if (load(newlines, false)) {
                            break;
                        }
                    }
                    int cc = fCurrentEntity.ch[fCurrentEntity.position]; 
                    if (cc == '\n" || cc == 0x85) {
                        fCurrentEntity.position++;
                        offset++;
                    }
                    /*** NEWLINE NORMALIZATION ***/
                    else {
                        newlines++;
                    }
                }
                else if (c == '\n" || ((c == 0x85 || c == 0x2028) && external)) {
                    newlines++;
                    fCurrentEntity.lineNumber++;
                    fCurrentEntity.columnNumber = 1;
                    if (fCurrentEntity.position == fCurrentEntity.count) {
                        offset = 0;
                        fCurrentEntity.baseCharOffset += (fCurrentEntity.position - fCurrentEntity.startPosition);
                        fCurrentEntity.position = newlines;
                        fCurrentEntity.startPosition = newlines;
                        if (load(newlines, false)) {
                            break;
                        }
                    }
                }
                else {
                    fCurrentEntity.position--;
                    break;
                }
            } while (fCurrentEntity.position < fCurrentEntity.count - 1);
            for (int i = offset; i < fCurrentEntity.position; i++) {
                fCurrentEntity.ch[i] = '\n";
            }
            int length = fCurrentEntity.position - offset;
            if (fCurrentEntity.position == fCurrentEntity.count - 1) {
                content.setValues(fCurrentEntity.ch, offset, length);
                return -1;
            }
        }

        // inner loop, scanning for content
        if (external) {
            while (fCurrentEntity.position < fCurrentEntity.count) {
                c = fCurrentEntity.ch[fCurrentEntity.position++];
                if (!XML11Char.isXML11Content(c) || c == 0x85 || c == 0x2028) {
                    fCurrentEntity.position--;
                    break;
                }
            }
        }
        else {
            while (fCurrentEntity.position < fCurrentEntity.count) {
                c = fCurrentEntity.ch[fCurrentEntity.position++];
                // In internal entities control characters are allowed to appear unescaped.
                if (!XML11Char.isXML11InternalEntityContent(c)) {
                    fCurrentEntity.position--;
                    break;
                }
            }
        }
        int length = fCurrentEntity.position - offset;
        fCurrentEntity.columnNumber += length - newlines;
        content.setValues(fCurrentEntity.ch, offset, length);

        // return next character
        if (fCurrentEntity.position != fCurrentEntity.count) {
            c = fCurrentEntity.ch[fCurrentEntity.position];
            // REVISIT: Does this need to be updated to fix the
            //          #x0D ^#x0A newline normalization problem? -Ac
            if ((c == '\r" || c == 0x85 || c == 0x2028) && external) {
                c = '\n";
            }
        }
        else {
            c = -1;
        }
        return c;

    
public booleanscanData(java.lang.String delimiter, org.apache.xerces.util.XMLStringBuffer buffer)
Scans a range of character data up to the specicied delimiter, setting the fields of the XMLString structure, appropriately.

Note: The characters are consumed.

Note: This assumes that the internal buffer is at least the same size, or bigger, than the length of the delimiter and that the delimiter contains at least one character.

Note: This method does not guarantee to return the longest run of character data. This method may return before the delimiter due to reaching the end of the input buffer or any other reason.

Note: The fields contained in the XMLString structure are not guaranteed to remain valid upon subsequent calls to the entity scanner. Therefore, the caller is responsible for immediately using the returned character data or making a copy of the character data.

param
delimiter The string that signifies the end of the character data to be scanned.
param
buffer The XMLStringBuffer to fill.
return
Returns true if there is more data to scan, false otherwise.
throws
IOException Thrown if i/o error occurs.
throws
EOFException Thrown on end of file.


        boolean done = false;
        int delimLen = delimiter.length();
        char charAt0 = delimiter.charAt(0);
        boolean external = fCurrentEntity.isExternal();
        do {
            // load more characters, if needed 
            if (fCurrentEntity.position == fCurrentEntity.count) {
                load(0, true);
            }

            boolean bNextEntity = false;

            while ((fCurrentEntity.position >= fCurrentEntity.count - delimLen)
                && (!bNextEntity))
            {
              System.arraycopy(fCurrentEntity.ch,
                               fCurrentEntity.position,
                               fCurrentEntity.ch,
                               0,
                               fCurrentEntity.count - fCurrentEntity.position);

              bNextEntity = load(fCurrentEntity.count - fCurrentEntity.position, false);
              fCurrentEntity.position = 0;
              fCurrentEntity.startPosition = 0;
            }

            if (fCurrentEntity.position >= fCurrentEntity.count - delimLen) {
                // something must be wrong with the input:  e.g., file ends  an unterminated comment
                int length = fCurrentEntity.count - fCurrentEntity.position;
                buffer.append (fCurrentEntity.ch, fCurrentEntity.position, length); 
                fCurrentEntity.columnNumber += fCurrentEntity.count;
                fCurrentEntity.baseCharOffset += (fCurrentEntity.position - fCurrentEntity.startPosition);
                fCurrentEntity.position = fCurrentEntity.count;
                fCurrentEntity.startPosition = fCurrentEntity.count;
                load(0,true);
                return false;
            }

            // normalize newlines
            int offset = fCurrentEntity.position;
            int c = fCurrentEntity.ch[offset];
            int newlines = 0;
            if (c == '\n" || ((c == '\r" || c == 0x85 || c == 0x2028) && external)) {
                do {
                    c = fCurrentEntity.ch[fCurrentEntity.position++];
                    if ((c == '\r" ) && external) {
                        newlines++;
                        fCurrentEntity.lineNumber++;
                        fCurrentEntity.columnNumber = 1;
                        if (fCurrentEntity.position == fCurrentEntity.count) {
                            offset = 0;
                            fCurrentEntity.baseCharOffset += (fCurrentEntity.position - fCurrentEntity.startPosition);
                            fCurrentEntity.position = newlines;
                            fCurrentEntity.startPosition = newlines;
                            if (load(newlines, false)) {
                                break;
                            }
                        }
                        int cc = fCurrentEntity.ch[fCurrentEntity.position]; 
                        if (cc == '\n" || cc == 0x85) {
                            fCurrentEntity.position++;
                            offset++;
                        }
                        /*** NEWLINE NORMALIZATION ***/
                        else {
                            newlines++;
                        }
                    }
                    else if (c == '\n" || ((c == 0x85 || c == 0x2028) && external)) {
                        newlines++;
                        fCurrentEntity.lineNumber++;
                        fCurrentEntity.columnNumber = 1;
                        if (fCurrentEntity.position == fCurrentEntity.count) {
                            offset = 0;
                            fCurrentEntity.baseCharOffset += (fCurrentEntity.position - fCurrentEntity.startPosition);
                            fCurrentEntity.position = newlines;
                            fCurrentEntity.startPosition = newlines;
                            fCurrentEntity.count = newlines;
                            if (load(newlines, false)) {
                                break;
                            }
                        }
                    }
                    else {
                        fCurrentEntity.position--;
                        break;
                    }
                } while (fCurrentEntity.position < fCurrentEntity.count - 1);
                for (int i = offset; i < fCurrentEntity.position; i++) {
                    fCurrentEntity.ch[i] = '\n";
                }
                int length = fCurrentEntity.position - offset;
                if (fCurrentEntity.position == fCurrentEntity.count - 1) {
                    buffer.append(fCurrentEntity.ch, offset, length);
                    return true;
                }
            }

            // iterate over buffer looking for delimiter
            if (external) {
                OUTER: while (fCurrentEntity.position < fCurrentEntity.count) {
                    c = fCurrentEntity.ch[fCurrentEntity.position++];
                    if (c == charAt0) {
                        // looks like we just hit the delimiter
                        int delimOffset = fCurrentEntity.position - 1;
                        for (int i = 1; i < delimLen; i++) {
                            if (fCurrentEntity.position == fCurrentEntity.count) {
                                fCurrentEntity.position -= i;
                                break OUTER;
                            }
                            c = fCurrentEntity.ch[fCurrentEntity.position++];
                            if (delimiter.charAt(i) != c) {
                                fCurrentEntity.position--;
                                break;
                            }
                         }
                         if (fCurrentEntity.position == delimOffset + delimLen) {
                            done = true;
                            break;
                         }
                    }
                    else if (c == '\n" || c == '\r" || c == 0x85 || c == 0x2028) {
                        fCurrentEntity.position--;
                        break;
                    }
                    // In external entities control characters cannot appear 
                    // as literals so do not skip over them.
                    else if (!XML11Char.isXML11ValidLiteral(c)) {
                        fCurrentEntity.position--;
                        int length = fCurrentEntity.position - offset;
                        fCurrentEntity.columnNumber += length - newlines;
                        buffer.append(fCurrentEntity.ch, offset, length); 
                        return true;
                    }
                }
            }
            else {
                OUTER: while (fCurrentEntity.position < fCurrentEntity.count) {
                    c = fCurrentEntity.ch[fCurrentEntity.position++];
                    if (c == charAt0) {
                        // looks like we just hit the delimiter
                        int delimOffset = fCurrentEntity.position - 1;
                        for (int i = 1; i < delimLen; i++) {
                            if (fCurrentEntity.position == fCurrentEntity.count) {
                                fCurrentEntity.position -= i;
                                break OUTER;
                            }
                            c = fCurrentEntity.ch[fCurrentEntity.position++];
                            if (delimiter.charAt(i) != c) {
                                fCurrentEntity.position--;
                                break;
                            }
                        }
                        if (fCurrentEntity.position == delimOffset + delimLen) {
                            done = true;
                            break;
                        }
                    }
                    else if (c == '\n") {
                        fCurrentEntity.position--;
                        break;
                    }
                    // Control characters are allowed to appear as literals
                    // in internal entities.
                    else if (!XML11Char.isXML11Valid(c)) {
                        fCurrentEntity.position--;
                        int length = fCurrentEntity.position - offset;
                        fCurrentEntity.columnNumber += length - newlines;
                        buffer.append(fCurrentEntity.ch, offset, length); 
                        return true;
                    }
                }
            }
            int length = fCurrentEntity.position - offset;
            fCurrentEntity.columnNumber += length - newlines;
            if (done) {
                length -= delimLen;
            }
            buffer.append(fCurrentEntity.ch, offset, length);

            // return true if string was skipped
        } while (!done);
        return !done;

    
public intscanLiteral(int quote, org.apache.xerces.xni.XMLString content)
Scans a range of attribute value data, setting the fields of the XMLString structure, appropriately.

Note: The characters are consumed.

Note: This method does not guarantee to return the longest run of attribute value data. This method may return before the quote character due to reaching the end of the input buffer or any other reason.

Note: The fields contained in the XMLString structure are not guaranteed to remain valid upon subsequent calls to the entity scanner. Therefore, the caller is responsible for immediately using the returned character data or making a copy of the character data.

param
quote The quote character that signifies the end of the attribute value data.
param
content The content structure to fill.
return
Returns the next character on the input, if known. This value may be -1 but this does note designate end of file.
throws
IOException Thrown if i/o error occurs.
throws
EOFException Thrown on end of file.


        // load more characters, if needed
        if (fCurrentEntity.position == fCurrentEntity.count) {
            load(0, true);
        }
        else if (fCurrentEntity.position == fCurrentEntity.count - 1) {
            fCurrentEntity.ch[0] = fCurrentEntity.ch[fCurrentEntity.count - 1];
            load(1, false);
            fCurrentEntity.startPosition = 0;
            fCurrentEntity.position = 0;
        }

        // normalize newlines
        int offset = fCurrentEntity.position;
        int c = fCurrentEntity.ch[offset];
        int newlines = 0;
        boolean external = fCurrentEntity.isExternal();
        if (c == '\n" || ((c == '\r" || c == 0x85 || c == 0x2028) && external)) {
            do {
                c = fCurrentEntity.ch[fCurrentEntity.position++];
                if ((c == '\r" ) && external) {
                    newlines++;
                    fCurrentEntity.lineNumber++;
                    fCurrentEntity.columnNumber = 1;
                    if (fCurrentEntity.position == fCurrentEntity.count) {
                        offset = 0;
                        fCurrentEntity.baseCharOffset += (fCurrentEntity.position - fCurrentEntity.startPosition);
                        fCurrentEntity.position = newlines;
                        fCurrentEntity.startPosition = newlines;
                        if (load(newlines, false)) {
                            break;
                        }
                    }
                    int cc = fCurrentEntity.ch[fCurrentEntity.position]; 
                    if (cc == '\n" || cc == 0x85) {
                        fCurrentEntity.position++;
                        offset++;
                    }
                    /*** NEWLINE NORMALIZATION ***/
                    else {
                        newlines++;
                    }
                }
                else if (c == '\n" || ((c == 0x85 || c == 0x2028) && external)) {
                    newlines++;
                    fCurrentEntity.lineNumber++;
                    fCurrentEntity.columnNumber = 1;
                    if (fCurrentEntity.position == fCurrentEntity.count) {
                        offset = 0;
                        fCurrentEntity.baseCharOffset += (fCurrentEntity.position - fCurrentEntity.startPosition);
                        fCurrentEntity.position = newlines;
                        fCurrentEntity.startPosition = newlines;
                        if (load(newlines, false)) {
                            break;
                        }
                    }
                }
                else {
                    fCurrentEntity.position--;
                    break;
                }
            } while (fCurrentEntity.position < fCurrentEntity.count - 1);
            for (int i = offset; i < fCurrentEntity.position; i++) {
                fCurrentEntity.ch[i] = '\n";
            }
            int length = fCurrentEntity.position - offset;
            if (fCurrentEntity.position == fCurrentEntity.count - 1) {
                content.setValues(fCurrentEntity.ch, offset, length);
                return -1;
            }
        }

        // scan literal value
        if (external) {
            while (fCurrentEntity.position < fCurrentEntity.count) {
                c = fCurrentEntity.ch[fCurrentEntity.position++];
                if (c == quote || c == '%" || !XML11Char.isXML11Content(c) 
                    || c == 0x85 || c == 0x2028) {
                    fCurrentEntity.position--;
                    break;
                }
            }
        }
        else {
            while (fCurrentEntity.position < fCurrentEntity.count) {
                c = fCurrentEntity.ch[fCurrentEntity.position++];
                // In internal entities control characters are allowed to appear unescaped.
                if ((c == quote && !fCurrentEntity.literal)
                    || c == '%" || !XML11Char.isXML11InternalEntityContent(c)) {
                    fCurrentEntity.position--;
                    break;
                }
            }
        }
        int length = fCurrentEntity.position - offset;
        fCurrentEntity.columnNumber += length - newlines;
        content.setValues(fCurrentEntity.ch, offset, length);

        // return next character
        if (fCurrentEntity.position != fCurrentEntity.count) {
            c = fCurrentEntity.ch[fCurrentEntity.position];
            // NOTE: We don't want to accidentally signal the
            //       end of the literal if we're expanding an
            //       entity appearing in the literal. -Ac
            if (c == quote && fCurrentEntity.literal) {
                c = -1;
            }
        }
        else {
            c = -1;
        }
        return c;

    
public java.lang.StringscanNCName()
Returns a string matching the NCName production appearing immediately on the input as a symbol, or null if no NCName string is present.

Note: The NCName characters are consumed.

Note: The string returned must be a symbol. The SymbolTable can be used for this purpose.

throws
IOException Thrown if i/o error occurs.
throws
EOFException Thrown on end of file.
see
org.apache.xerces.util.SymbolTable
see
org.apache.xerces.util.XML11Char#isXML11NCName
see
org.apache.xerces.util.XML11Char#isXML11NCNameStart


        // load more characters, if needed
        if (fCurrentEntity.position == fCurrentEntity.count) {
            load(0, true);
        }

        // scan name
        int offset = fCurrentEntity.position;
        char ch = fCurrentEntity.ch[offset];
        
        if (XML11Char.isXML11NCNameStart(ch)) {
            if (++fCurrentEntity.position == fCurrentEntity.count) {
                fCurrentEntity.ch[0] = ch;
                offset = 0;
                if (load(1, false)) {
                    fCurrentEntity.columnNumber++;
                    String symbol = fSymbolTable.addSymbol(fCurrentEntity.ch, 0, 1);
                    return symbol;
                }
            }
        }
        else if (XML11Char.isXML11NameHighSurrogate(ch)) {
            if (++fCurrentEntity.position == fCurrentEntity.count) {
                fCurrentEntity.ch[0] = ch;
                offset = 0;
                if (load(1, false)) {
                    --fCurrentEntity.position;
                    --fCurrentEntity.startPosition;
                    return null;
                }
            }
            char ch2 = fCurrentEntity.ch[fCurrentEntity.position];
            if ( !XMLChar.isLowSurrogate(ch2) ||
                 !XML11Char.isXML11NCNameStart(XMLChar.supplemental(ch, ch2)) ) {
                --fCurrentEntity.position;
                return null;
            }
            if (++fCurrentEntity.position == fCurrentEntity.count) {
                fCurrentEntity.ch[0] = ch;
                fCurrentEntity.ch[1] = ch2;
                offset = 0;
                if (load(2, false)) {
                    fCurrentEntity.columnNumber += 2;
                    String symbol = fSymbolTable.addSymbol(fCurrentEntity.ch, 0, 2);
                    return symbol;
                }
            }
        }
        else {
            return null;
        }
        
        do {
            ch = fCurrentEntity.ch[fCurrentEntity.position];
            if (XML11Char.isXML11NCName(ch)) {
                if (++fCurrentEntity.position == fCurrentEntity.count) {
                    int length = fCurrentEntity.position - offset;
                    if (length == fCurrentEntity.ch.length) {
                        // bad luck we have to resize our buffer
                        char[] tmp = new char[fCurrentEntity.ch.length << 1];
                        System.arraycopy(fCurrentEntity.ch, offset,
                                         tmp, 0, length);
                        fCurrentEntity.ch = tmp;
                    }
                    else {
                        System.arraycopy(fCurrentEntity.ch, offset,
                                         fCurrentEntity.ch, 0, length);
                    }
                    offset = 0;
                    if (load(length, false)) {
                        break;
                    }
                }
            }
            else if (XML11Char.isXML11NameHighSurrogate(ch)) {
                if (++fCurrentEntity.position == fCurrentEntity.count) {
                    int length = fCurrentEntity.position - offset;
                    if (length == fCurrentEntity.ch.length) {
                        // bad luck we have to resize our buffer
                        char[] tmp = new char[fCurrentEntity.ch.length << 1];
                        System.arraycopy(fCurrentEntity.ch, offset,
                                         tmp, 0, length);
                        fCurrentEntity.ch = tmp;
                    }
                    else {
                        System.arraycopy(fCurrentEntity.ch, offset,
                                         fCurrentEntity.ch, 0, length);
                    }
                    offset = 0;
                    if (load(length, false)) {
                        --fCurrentEntity.startPosition;
                        --fCurrentEntity.position;
                        break;
                    }
                }
                char ch2 = fCurrentEntity.ch[fCurrentEntity.position];
                if ( !XMLChar.isLowSurrogate(ch2) ||
                     !XML11Char.isXML11NCName(XMLChar.supplemental(ch, ch2)) ) {
                    --fCurrentEntity.position;
                    break;
                }
                if (++fCurrentEntity.position == fCurrentEntity.count) {
                    int length = fCurrentEntity.position - offset;
                    if (length == fCurrentEntity.ch.length) {
                        // bad luck we have to resize our buffer
                        char[] tmp = new char[fCurrentEntity.ch.length << 1];
                        System.arraycopy(fCurrentEntity.ch, offset,
                                         tmp, 0, length);
                        fCurrentEntity.ch = tmp;
                    }
                    else {
                        System.arraycopy(fCurrentEntity.ch, offset,
                                         fCurrentEntity.ch, 0, length);
                    }
                    offset = 0;
                    if (load(length, false)) {
                        break;
                    }
                }
            }
            else {
                break;
            }
        }
        while (true);
        
        int length = fCurrentEntity.position - offset;
        fCurrentEntity.columnNumber += length;

        // return name
        String symbol = null;
        if (length > 0) {
            symbol = fSymbolTable.addSymbol(fCurrentEntity.ch, offset, length);
        }
        return symbol;

    
public java.lang.StringscanName()
Returns a string matching the Name production appearing immediately on the input as a symbol, or null if no Name string is present.

Note: The Name characters are consumed.

Note: The string returned must be a symbol. The SymbolTable can be used for this purpose.

throws
IOException Thrown if i/o error occurs.
throws
EOFException Thrown on end of file.
see
org.apache.xerces.util.SymbolTable
see
org.apache.xerces.util.XML11Char#isXML11Name
see
org.apache.xerces.util.XML11Char#isXML11NameStart

        // load more characters, if needed
        if (fCurrentEntity.position == fCurrentEntity.count) {
            load(0, true);
        }

        // scan name
        int offset = fCurrentEntity.position;
        char ch = fCurrentEntity.ch[offset];
        
        if (XML11Char.isXML11NameStart(ch)) {
            if (++fCurrentEntity.position == fCurrentEntity.count) {
                fCurrentEntity.ch[0] = ch;
                offset = 0;
                if (load(1, false)) {
                    fCurrentEntity.columnNumber++;
                    String symbol = fSymbolTable.addSymbol(fCurrentEntity.ch, 0, 1);
                    return symbol;
                }
            }
        }
        else if (XML11Char.isXML11NameHighSurrogate(ch)) {
            if (++fCurrentEntity.position == fCurrentEntity.count) {
                fCurrentEntity.ch[0] = ch;
                offset = 0;
                if (load(1, false)) {
                    --fCurrentEntity.position;
                    --fCurrentEntity.startPosition;
                    return null;
                }
            }
            char ch2 = fCurrentEntity.ch[fCurrentEntity.position];
            if ( !XMLChar.isLowSurrogate(ch2) ||
                 !XML11Char.isXML11NameStart(XMLChar.supplemental(ch, ch2)) ) {
                --fCurrentEntity.position;
                return null;
            }
            if (++fCurrentEntity.position == fCurrentEntity.count) {
                fCurrentEntity.ch[0] = ch;
                fCurrentEntity.ch[1] = ch2;
                offset = 0;
                if (load(2, false)) {
                    fCurrentEntity.columnNumber += 2;
                    String symbol = fSymbolTable.addSymbol(fCurrentEntity.ch, 0, 2);
                    return symbol;
                }
            }
        }
        else {
            return null;
        }
        
        do {
            ch = fCurrentEntity.ch[fCurrentEntity.position];
            if (XML11Char.isXML11Name(ch)) {
                if (++fCurrentEntity.position == fCurrentEntity.count) {
                    int length = fCurrentEntity.position - offset;
                    if (length == fCurrentEntity.ch.length) {
                        // bad luck we have to resize our buffer
                        char[] tmp = new char[fCurrentEntity.ch.length << 1];
                        System.arraycopy(fCurrentEntity.ch, offset,
                                         tmp, 0, length);
                        fCurrentEntity.ch = tmp;
                    }
                    else {
                        System.arraycopy(fCurrentEntity.ch, offset,
                                         fCurrentEntity.ch, 0, length);
                    }
                    offset = 0;
                    if (load(length, false)) {
                        break;
                    }
                }
            }
            else if (XML11Char.isXML11NameHighSurrogate(ch)) {
                if (++fCurrentEntity.position == fCurrentEntity.count) {
                    int length = fCurrentEntity.position - offset;
                    if (length == fCurrentEntity.ch.length) {
                        // bad luck we have to resize our buffer
                        char[] tmp = new char[fCurrentEntity.ch.length << 1];
                        System.arraycopy(fCurrentEntity.ch, offset,
                                         tmp, 0, length);
                        fCurrentEntity.ch = tmp;
                    }
                    else {
                        System.arraycopy(fCurrentEntity.ch, offset,
                                         fCurrentEntity.ch, 0, length);
                    }
                    offset = 0;
                    if (load(length, false)) {
                        --fCurrentEntity.position;
                        --fCurrentEntity.startPosition;
                        break;
                    }
                }
                char ch2 = fCurrentEntity.ch[fCurrentEntity.position];
                if ( !XMLChar.isLowSurrogate(ch2) ||
                     !XML11Char.isXML11Name(XMLChar.supplemental(ch, ch2)) ) {
                    --fCurrentEntity.position;
                    break;
                }
                if (++fCurrentEntity.position == fCurrentEntity.count) {
                    int length = fCurrentEntity.position - offset;
                    if (length == fCurrentEntity.ch.length) {
                        // bad luck we have to resize our buffer
                        char[] tmp = new char[fCurrentEntity.ch.length << 1];
                        System.arraycopy(fCurrentEntity.ch, offset,
                                         tmp, 0, length);
                        fCurrentEntity.ch = tmp;
                    }
                    else {
                        System.arraycopy(fCurrentEntity.ch, offset,
                                         fCurrentEntity.ch, 0, length);
                    }
                    offset = 0;
                    if (load(length, false)) {
                        break;
                    }
                }
            }
            else {
                break;
            }
        }
        while (true);

        int length = fCurrentEntity.position - offset;
        fCurrentEntity.columnNumber += length;

        // return name
        String symbol = null;
        if (length > 0) {
            symbol = fSymbolTable.addSymbol(fCurrentEntity.ch, offset, length);
        }
        return symbol;

    
public java.lang.StringscanNmtoken()
Returns a string matching the NMTOKEN production appearing immediately on the input as a symbol, or null if NMTOKEN Name string is present.

Note: The NMTOKEN characters are consumed.

Note: The string returned must be a symbol. The SymbolTable can be used for this purpose.

throws
IOException Thrown if i/o error occurs.
throws
EOFException Thrown on end of file.
see
org.apache.xerces.util.SymbolTable
see
org.apache.xerces.util.XML11Char#isXML11Name

        // load more characters, if needed
        if (fCurrentEntity.position == fCurrentEntity.count) {
            load(0, true);
        }

        // scan nmtoken
        int offset = fCurrentEntity.position;
        
        do {
            char ch = fCurrentEntity.ch[fCurrentEntity.position];
            if (XML11Char.isXML11Name(ch)) {
                if (++fCurrentEntity.position == fCurrentEntity.count) {
                    int length = fCurrentEntity.position - offset;
                    if (length == fCurrentEntity.ch.length) {
                        // bad luck we have to resize our buffer
                        char[] tmp = new char[fCurrentEntity.ch.length << 1];
                        System.arraycopy(fCurrentEntity.ch, offset,
                                         tmp, 0, length);
                        fCurrentEntity.ch = tmp;
                    }
                    else {
                        System.arraycopy(fCurrentEntity.ch, offset,
                                         fCurrentEntity.ch, 0, length);
                    }
                    offset = 0;
                    if (load(length, false)) {
                        break;
                    }
                }
            }
            else if (XML11Char.isXML11NameHighSurrogate(ch)) {
                if (++fCurrentEntity.position == fCurrentEntity.count) {
                    int length = fCurrentEntity.position - offset;
                    if (length == fCurrentEntity.ch.length) {
                        // bad luck we have to resize our buffer
                        char[] tmp = new char[fCurrentEntity.ch.length << 1];
                        System.arraycopy(fCurrentEntity.ch, offset,
                                         tmp, 0, length);
                        fCurrentEntity.ch = tmp;
                    }
                    else {
                        System.arraycopy(fCurrentEntity.ch, offset,
                                         fCurrentEntity.ch, 0, length);
                    }
                    offset = 0;
                    if (load(length, false)) {
                        --fCurrentEntity.startPosition;
                        --fCurrentEntity.position;
                        break;
                    }
                }
                char ch2 = fCurrentEntity.ch[fCurrentEntity.position];
                if ( !XMLChar.isLowSurrogate(ch2) ||
                     !XML11Char.isXML11Name(XMLChar.supplemental(ch, ch2)) ) {
                    --fCurrentEntity.position;
                    break;
                }
                if (++fCurrentEntity.position == fCurrentEntity.count) {
                    int length = fCurrentEntity.position - offset;
                    if (length == fCurrentEntity.ch.length) {
                        // bad luck we have to resize our buffer
                        char[] tmp = new char[fCurrentEntity.ch.length << 1];
                        System.arraycopy(fCurrentEntity.ch, offset,
                                         tmp, 0, length);
                        fCurrentEntity.ch = tmp;
                    }
                    else {
                        System.arraycopy(fCurrentEntity.ch, offset,
                                         fCurrentEntity.ch, 0, length);
                    }
                    offset = 0;
                    if (load(length, false)) {
                        break;
                    }
                }
            }
            else {
                break;
            }
        }
        while (true);
        
        int length = fCurrentEntity.position - offset;
        fCurrentEntity.columnNumber += length;

        // return nmtoken
        String symbol = null;
        if (length > 0) {
            symbol = fSymbolTable.addSymbol(fCurrentEntity.ch, offset, length);
        }
        return symbol;

    
public booleanscanQName(org.apache.xerces.xni.QName qname)
Scans a qualified name from the input, setting the fields of the QName structure appropriately.

Note: The qualified name characters are consumed.

Note: The strings used to set the values of the QName structure must be symbols. The SymbolTable can be used for this purpose.

param
qname The qualified name structure to fill.
return
Returns true if a qualified name appeared immediately on the input and was scanned, false otherwise.
throws
IOException Thrown if i/o error occurs.
throws
EOFException Thrown on end of file.
see
org.apache.xerces.util.SymbolTable
see
org.apache.xerces.util.XML11Char#isXML11Name
see
org.apache.xerces.util.XML11Char#isXML11NameStart


        // load more characters, if needed
        if (fCurrentEntity.position == fCurrentEntity.count) {
            load(0, true);
        }

        // scan qualified name
        int offset = fCurrentEntity.position;
        char ch = fCurrentEntity.ch[offset];
        
        if (XML11Char.isXML11NCNameStart(ch)) {
            if (++fCurrentEntity.position == fCurrentEntity.count) {
                fCurrentEntity.ch[0] = ch;
                offset = 0;
                if (load(1, false)) {
                    fCurrentEntity.columnNumber++;
                    String name = fSymbolTable.addSymbol(fCurrentEntity.ch, 0, 1);
                    qname.setValues(null, name, name, null);
                    return true;
                }
            }
        }
        else if (XML11Char.isXML11NameHighSurrogate(ch)) {
            if (++fCurrentEntity.position == fCurrentEntity.count) {
                fCurrentEntity.ch[0] = ch;
                offset = 0;
                if (load(1, false)) {
                    --fCurrentEntity.startPosition;
                    --fCurrentEntity.position;
                    return false;
                }
            }
            char ch2 = fCurrentEntity.ch[fCurrentEntity.position];
            if ( !XMLChar.isLowSurrogate(ch2) ||
                 !XML11Char.isXML11NCNameStart(XMLChar.supplemental(ch, ch2)) ) {
                --fCurrentEntity.position;
                return false;
            }
            if (++fCurrentEntity.position == fCurrentEntity.count) {
                fCurrentEntity.ch[0] = ch;
                fCurrentEntity.ch[1] = ch2;
                offset = 0;
                if (load(2, false)) {
                    fCurrentEntity.columnNumber += 2;
                    String name = fSymbolTable.addSymbol(fCurrentEntity.ch, 0, 2);
                    qname.setValues(null, name, name, null);
                    return true;
                }
            }
        }
        else {
            return false;
        }
        
        int index = -1;
        boolean sawIncompleteSurrogatePair = false;
        do {
            ch = fCurrentEntity.ch[fCurrentEntity.position];
            if (XML11Char.isXML11Name(ch)) {
                if (ch == ':") {
                    if (index != -1) {
                        break;
                    }
                    index = fCurrentEntity.position;
                }
                if (++fCurrentEntity.position == fCurrentEntity.count) {
                    int length = fCurrentEntity.position - offset;
                    if (length == fCurrentEntity.ch.length) {
                        // bad luck we have to resize our buffer
                        char[] tmp = new char[fCurrentEntity.ch.length << 1];
                        System.arraycopy(fCurrentEntity.ch, offset,
                                         tmp, 0, length);
                        fCurrentEntity.ch = tmp;
                    }
                    else {
                        System.arraycopy(fCurrentEntity.ch, offset,
                                         fCurrentEntity.ch, 0, length);
                    }
                    if (index != -1) {
                        index = index - offset;
                    }
                    offset = 0;
                    if (load(length, false)) {
                        break;
                    }
                }
            }
            else if (XML11Char.isXML11NameHighSurrogate(ch)) {
                if (++fCurrentEntity.position == fCurrentEntity.count) {
                    int length = fCurrentEntity.position - offset;
                    if (length == fCurrentEntity.ch.length) {
                        // bad luck we have to resize our buffer
                        char[] tmp = new char[fCurrentEntity.ch.length << 1];
                        System.arraycopy(fCurrentEntity.ch, offset,
                                         tmp, 0, length);
                        fCurrentEntity.ch = tmp;
                    }
                    else {
                        System.arraycopy(fCurrentEntity.ch, offset,
                                         fCurrentEntity.ch, 0, length);
                    }
                    if (index != -1) {
                        index = index - offset;
                    }
                    offset = 0;
                    if (load(length, false)) {
                        sawIncompleteSurrogatePair = true;
                        --fCurrentEntity.startPosition;
                        --fCurrentEntity.position;
                        break;
                    }
                }
                char ch2 = fCurrentEntity.ch[fCurrentEntity.position];
                if ( !XMLChar.isLowSurrogate(ch2) ||
                     !XML11Char.isXML11Name(XMLChar.supplemental(ch, ch2)) ) {
                    sawIncompleteSurrogatePair = true;
                    --fCurrentEntity.position;
                    break;
                }
                if (++fCurrentEntity.position == fCurrentEntity.count) {
                    int length = fCurrentEntity.position - offset;
                    if (length == fCurrentEntity.ch.length) {
                        // bad luck we have to resize our buffer
                        char[] tmp = new char[fCurrentEntity.ch.length << 1];
                        System.arraycopy(fCurrentEntity.ch, offset,
                                         tmp, 0, length);
                        fCurrentEntity.ch = tmp;
                    }
                    else {
                        System.arraycopy(fCurrentEntity.ch, offset,
                                         fCurrentEntity.ch, 0, length);
                    }
                    if (index != -1) {
                        index = index - offset;
                    }
                    offset = 0;
                    if (load(length, false)) {
                        break;
                    }
                }
            }
            else {
                break;
            }
        }
        while (true);
        
        int length = fCurrentEntity.position - offset;
        fCurrentEntity.columnNumber += length;
        
        if (length > 0) {
            String prefix = null;
            String localpart = null;
            String rawname = fSymbolTable.addSymbol(fCurrentEntity.ch,
                                                    offset, length);
            if (index != -1) {
                int prefixLength = index - offset;
                prefix = fSymbolTable.addSymbol(fCurrentEntity.ch,
                                                    offset, prefixLength);
                int len = length - prefixLength - 1;
                int startLocal = index +1;
                if (!XML11Char.isXML11NCNameStart(fCurrentEntity.ch[startLocal]) &&
                    (!XML11Char.isXML11NameHighSurrogate(fCurrentEntity.ch[startLocal]) ||
                    sawIncompleteSurrogatePair)){
                    fErrorReporter.reportError(XMLMessageFormatter.XML_DOMAIN,
                                               "IllegalQName",
                                               null,
                                               XMLErrorReporter.SEVERITY_FATAL_ERROR);
                }
                localpart = fSymbolTable.addSymbol(fCurrentEntity.ch,
                                                   index + 1, len);

            }
            else {
                localpart = rawname;
            }
            qname.setValues(prefix, localpart, rawname, null);
            return true;
        }
        return false;

    
public booleanskipChar(int c)
Skips a character appearing immediately on the input.

Note: The character is consumed only if it matches the specified character.

param
c The character to skip.
return
Returns true if the character was skipped.
throws
IOException Thrown if i/o error occurs.
throws
EOFException Thrown on end of file.


        // load more characters, if needed
        if (fCurrentEntity.position == fCurrentEntity.count) {
            load(0, true);
        }

        // skip character
        int cc = fCurrentEntity.ch[fCurrentEntity.position];
        if (cc == c) {
            fCurrentEntity.position++;
            if (c == '\n") {
                fCurrentEntity.lineNumber++;
                fCurrentEntity.columnNumber = 1;
            }
            else {
                fCurrentEntity.columnNumber++;
            }
            return true;
        }
        else if (c == '\n" && ((cc == 0x2028 || cc == 0x85) && fCurrentEntity.isExternal())) {
            fCurrentEntity.position++;
            fCurrentEntity.lineNumber++;
            fCurrentEntity.columnNumber = 1;
            return true;
        }
        else if (c == '\n" && (cc == '\r" ) && fCurrentEntity.isExternal()) {
            // handle newlines
            if (fCurrentEntity.position == fCurrentEntity.count) {
                fCurrentEntity.ch[0] = (char)cc;
                load(1, false);
            }
            int ccc = fCurrentEntity.ch[++fCurrentEntity.position];
            if (ccc == '\n" || ccc == 0x85) {
                fCurrentEntity.position++;
            }
            fCurrentEntity.lineNumber++;
            fCurrentEntity.columnNumber = 1;
            return true;
        }

        // character was not skipped
        return false;

    
public booleanskipSpaces()
Skips space characters appearing immediately on the input.

Note: The characters are consumed only if they are space characters.

return
Returns true if at least one space character was skipped.
throws
IOException Thrown if i/o error occurs.
throws
EOFException Thrown on end of file.
see
org.apache.xerces.util.XMLChar#isSpace
see
org.apache.xerces.util.XML11Char#isXML11Space


        // load more characters, if needed
        if (fCurrentEntity.position == fCurrentEntity.count) {
            load(0, true);
        }

        // skip spaces
        int c = fCurrentEntity.ch[fCurrentEntity.position];
        
        // External --  Match: S + 0x85 + 0x2028, and perform end of line normalization
        if (fCurrentEntity.isExternal()) {
            if (XML11Char.isXML11Space(c)) {
                do {
                    boolean entityChanged = false;
                    // handle newlines
                    if (c == '\n" || c == '\r" || c == 0x85 || c == 0x2028) {
                        fCurrentEntity.lineNumber++;
                        fCurrentEntity.columnNumber = 1;
                        if (fCurrentEntity.position == fCurrentEntity.count - 1) {
                            fCurrentEntity.ch[0] = (char)c;
                            entityChanged = load(1, true);
                            if (!entityChanged) {
                                // the load change the position to be 1,
                                // need to restore it when entity not changed
                                fCurrentEntity.startPosition = 0;
                                fCurrentEntity.position = 0;
                            }
                        }
                        if (c == '\r") {
                            // REVISIT: Does this need to be updated to fix the
                            //          #x0D ^#x0A newline normalization problem? -Ac
                            int cc = fCurrentEntity.ch[++fCurrentEntity.position];
                            if (cc != '\n" && cc != 0x85 ) {
                                fCurrentEntity.position--;
                            }
                        }
                    }
                    else {
                        fCurrentEntity.columnNumber++;
                    }
                    // load more characters, if needed
                    if (!entityChanged)
                        fCurrentEntity.position++;
                    if (fCurrentEntity.position == fCurrentEntity.count) {
                        load(0, true);
                    }
                } while (XML11Char.isXML11Space(c = fCurrentEntity.ch[fCurrentEntity.position]));
                return true;
            }
        }
        // Internal -- Match: S (only)
        else if (XMLChar.isSpace(c)) {
            do {
                boolean entityChanged = false;
                // handle newlines
                if (c == '\n") {
                    fCurrentEntity.lineNumber++;
                    fCurrentEntity.columnNumber = 1;
                    if (fCurrentEntity.position == fCurrentEntity.count - 1) {
                        fCurrentEntity.ch[0] = (char)c;
                        entityChanged = load(1, true);
                        if (!entityChanged) {
                            // the load change the position to be 1,
                            // need to restore it when entity not changed
                            fCurrentEntity.startPosition = 0;
                            fCurrentEntity.position = 0;
                        }
                    }
                }
                else {
                    fCurrentEntity.columnNumber++;
                }
                // load more characters, if needed
                if (!entityChanged)
                    fCurrentEntity.position++;
                if (fCurrentEntity.position == fCurrentEntity.count) {
                    load(0, true);
                }
            } while (XMLChar.isSpace(c = fCurrentEntity.ch[fCurrentEntity.position]));
            return true;
        }

        // no spaces were found
        return false;

    
public booleanskipString(java.lang.String s)
Skips the specified string appearing immediately on the input.

Note: The characters are consumed only if they are space characters.

param
s The string to skip.
return
Returns true if the string was skipped.
throws
IOException Thrown if i/o error occurs.
throws
EOFException Thrown on end of file.


        // load more characters, if needed
        if (fCurrentEntity.position == fCurrentEntity.count) {
            load(0, true);
        }

        // skip string
        final int length = s.length();
        for (int i = 0; i < length; i++) {
            char c = fCurrentEntity.ch[fCurrentEntity.position++];
            if (c != s.charAt(i)) {
                fCurrentEntity.position -= i + 1;
                return false;
            }
            if (i < length - 1 && fCurrentEntity.position == fCurrentEntity.count) {
                System.arraycopy(fCurrentEntity.ch, fCurrentEntity.count - i - 1, fCurrentEntity.ch, 0, i + 1);
                // REVISIT: Can a string to be skipped cross an
                //          entity boundary? -Ac
                if (load(i + 1, false)) {
                    fCurrentEntity.startPosition -= i + 1;
                    fCurrentEntity.position -= i + 1;
                    return false;
                }
            }
        }
        fCurrentEntity.columnNumber += length;
        return true;