Remove HTML5 parser java docs and generation code.

java->C++ automated translation is not something we want to deal with
now or in the future.

1 files changed, 0 insertions, 854 deletions

diff --git a/parser/html/javasrc/MetaScanner.java b/parser/html/javasrc/MetaScanner.java
deleted file mode 100644
index be9aabfe3..000000000
--- a/parser/html/javasrc/MetaScanner.java
+++ /dev/null
@@ -1,854 +0,0 @@
-/*
- * Copyright (c) 2007 Henri Sivonen
- * Copyright (c) 2008-2015 Mozilla Foundation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a 
- * copy of this software and associated documentation files (the "Software"), 
- * to deal in the Software without restriction, including without limitation 
- * the rights to use, copy, modify, merge, publish, distribute, sublicense, 
- * and/or sell copies of the Software, and to permit persons to whom the 
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in 
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
- * DEALINGS IN THE SOFTWARE.
- */
-
-package nu.validator.htmlparser.impl;
-
-import java.io.IOException;
-
-import nu.validator.htmlparser.annotation.Auto;
-import nu.validator.htmlparser.annotation.Inline;
-import nu.validator.htmlparser.common.ByteReadable;
-
-import org.xml.sax.SAXException;
-
-public abstract class MetaScanner {
-
-    /**
-     * Constant for "charset".
-     */
-    private static final char[] CHARSET = { 'h', 'a', 'r', 's', 'e', 't' };
-    
-    /**
-     * Constant for "content".
-     */
-    private static final char[] CONTENT = { 'o', 'n', 't', 'e', 'n', 't' };
-
-    /**
-     * Constant for "http-equiv".
-     */
-    private static final char[] HTTP_EQUIV = { 't', 't', 'p', '-', 'e', 'q',
-            'u', 'i', 'v' };
-
-    /**
-     * Constant for "content-type".
-     */
-    private static final char[] CONTENT_TYPE = { 'c', 'o', 'n', 't', 'e', 'n',
-            't', '-', 't', 'y', 'p', 'e' };
-
-    private static final int NO = 0;
-
-    private static final int M = 1;
-    
-    private static final int E = 2;
-    
-    private static final int T = 3;
-
-    private static final int A = 4;
-    
-    private static final int DATA = 0;
-
-    private static final int TAG_OPEN = 1;
-
-    private static final int SCAN_UNTIL_GT = 2;
-
-    private static final int TAG_NAME = 3;
-
-    private static final int BEFORE_ATTRIBUTE_NAME = 4;
-
-    private static final int ATTRIBUTE_NAME = 5;
-
-    private static final int AFTER_ATTRIBUTE_NAME = 6;
-
-    private static final int BEFORE_ATTRIBUTE_VALUE = 7;
-
-    private static final int ATTRIBUTE_VALUE_DOUBLE_QUOTED = 8;
-
-    private static final int ATTRIBUTE_VALUE_SINGLE_QUOTED = 9;
-
-    private static final int ATTRIBUTE_VALUE_UNQUOTED = 10;
-
-    private static final int AFTER_ATTRIBUTE_VALUE_QUOTED = 11;
-
-    private static final int MARKUP_DECLARATION_OPEN = 13;
-    
-    private static final int MARKUP_DECLARATION_HYPHEN = 14;
-
-    private static final int COMMENT_START = 15;
-
-    private static final int COMMENT_START_DASH = 16;
-
-    private static final int COMMENT = 17;
-
-    private static final int COMMENT_END_DASH = 18;
-
-    private static final int COMMENT_END = 19;
-    
-    private static final int SELF_CLOSING_START_TAG = 20;
-    
-    private static final int HTTP_EQUIV_NOT_SEEN = 0;
-    
-    private static final int HTTP_EQUIV_CONTENT_TYPE = 1;
-
-    private static final int HTTP_EQUIV_OTHER = 2;
-
-    /**
-     * The data source.
-     */
-    protected ByteReadable readable;
-    
-    /**
-     * The state of the state machine that recognizes the tag name "meta".
-     */
-    private int metaState = NO;
-
-    /**
-     * The current position in recognizing the attribute name "content".
-     */
-    private int contentIndex = Integer.MAX_VALUE;
-    
-    /**
-     * The current position in recognizing the attribute name "charset".
-     */
-    private int charsetIndex = Integer.MAX_VALUE;
-
-    /**
-     * The current position in recognizing the attribute name "http-equive".
-     */
-    private int httpEquivIndex = Integer.MAX_VALUE;
-
-    /**
-     * The current position in recognizing the attribute value "content-type".
-     */
-    private int contentTypeIndex = Integer.MAX_VALUE;
-
-    /**
-     * The tokenizer state.
-     */
-    protected int stateSave = DATA;
-
-    /**
-     * The currently filled length of strBuf.
-     */
-    private int strBufLen;
-
-    /**
-     * Accumulation buffer for attribute values.
-     */
-    private @Auto char[] strBuf;
-    
-    private String content;
-    
-    private String charset;
-    
-    private int httpEquivState;
-    
-    // CPPONLY: private TreeBuilder treeBuilder;
-
-    public MetaScanner(
-        // CPPONLY: TreeBuilder tb
-    ) {
-        this.readable = null;
-        this.metaState = NO;
-        this.contentIndex = Integer.MAX_VALUE;
-        this.charsetIndex = Integer.MAX_VALUE;
-        this.httpEquivIndex = Integer.MAX_VALUE;
-        this.contentTypeIndex = Integer.MAX_VALUE;
-        this.stateSave = DATA;
-        this.strBufLen = 0;
-        this.strBuf = new char[36];
-        this.content = null;
-        this.charset = null;
-        this.httpEquivState = HTTP_EQUIV_NOT_SEEN;
-        // CPPONLY: this.treeBuilder = tb;
-    }
-    
-    @SuppressWarnings("unused") private void destructor() {
-        Portability.releaseString(content);
-        Portability.releaseString(charset);
-    }
-
-    // [NOCPP[
-    
-    /**
-     * Reads a byte from the data source.
-     * 
-     * -1 means end.
-     * @return
-     * @throws IOException
-     */
-    protected int read() throws IOException {
-        return readable.readByte();
-    }
-
-    // ]NOCPP]
-
-    // WARNING When editing this, makes sure the bytecode length shown by javap
-    // stays under 8000 bytes!
-    /**
-     * The runs the meta scanning algorithm.
-     */
-    protected final void stateLoop(int state)
-            throws SAXException, IOException {
-        int c = -1;
-        boolean reconsume = false;
-        stateloop: for (;;) {
-            switch (state) {
-                case DATA:
-                    dataloop: for (;;) {
-                        if (reconsume) {
-                            reconsume = false;
-                        } else {
-                            c = read();
-                        }
-                        switch (c) {
-                            case -1:
-                                break stateloop;
-                            case '<':
-                                state = MetaScanner.TAG_OPEN;
-                                break dataloop; // FALL THROUGH continue
-                            // stateloop;
-                            default:
-                                continue;
-                        }
-                    }
-                    // WARNING FALLTHRU CASE TRANSITION: DON'T REORDER
-                case TAG_OPEN:
-                    tagopenloop: for (;;) {
-                        c = read();
-                        switch (c) {
-                            case -1:
-                                break stateloop;
-                            case 'm':
-                            case 'M':
-                                metaState = M;
-                                state = MetaScanner.TAG_NAME;
-                                break tagopenloop;
-                                // continue stateloop;                                
-                            case '!':
-                                state = MetaScanner.MARKUP_DECLARATION_OPEN;
-                                continue stateloop;
-                            case '?':
-                            case '/':
-                                state = MetaScanner.SCAN_UNTIL_GT;
-                                continue stateloop;
-                            case '>':
-                                state = MetaScanner.DATA;
-                                continue stateloop;
-                            default:
-                                if ((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z')) {
-                                    metaState = NO;
-                                    state = MetaScanner.TAG_NAME;
-                                    break tagopenloop;
-                                    // continue stateloop;
-                                }
-                                state = MetaScanner.DATA;
-                                reconsume = true;
-                                continue stateloop;
-                        }
-                    }
-                    // FALL THROUGH DON'T REORDER
-                case TAG_NAME:
-                    tagnameloop: for (;;) {
-                        c = read();
-                        switch (c) {
-                            case -1:
-                                break stateloop;
-                            case ' ':
-                            case '\t':
-                            case '\n':
-                            case '\u000C':
-                                state = MetaScanner.BEFORE_ATTRIBUTE_NAME;
-                                break tagnameloop;
-                            // continue stateloop;
-                            case '/':
-                                state = MetaScanner.SELF_CLOSING_START_TAG;
-                                continue stateloop;
-                            case '>':
-                                state = MetaScanner.DATA;
-                                continue stateloop;
-                            case 'e':
-                            case 'E':
-                                if (metaState == M) {
-                                    metaState = E;
-                                } else {
-                                    metaState = NO;
-                                }
-                                continue;
-                            case 't':
-                            case 'T':
-                                if (metaState == E) {
-                                    metaState = T;
-                                } else {
-                                    metaState = NO;
-                                }
-                                continue;
-                            case 'a':
-                            case 'A':
-                                if (metaState == T) {
-                                    metaState = A;
-                                } else {
-                                    metaState = NO;
-                                }
-                                continue;
-                            default:
-                                metaState = NO;
-                                continue;
-                        }
-                    }
-                    // FALLTHRU DON'T REORDER
-                case BEFORE_ATTRIBUTE_NAME:
-                    beforeattributenameloop: for (;;) {
-                        if (reconsume) {
-                            reconsume = false;
-                        } else {
-                            c = read();
-                        }
-                        /*
-                         * Consume the next input character:
-                         */
-                        switch (c) {
-                            case -1:
-                                break stateloop;
-                            case ' ':
-                            case '\t':
-                            case '\n':
-                            case '\u000C':
-                                continue;
-                            case '/':
-                                state = MetaScanner.SELF_CLOSING_START_TAG;
-                                continue stateloop;
-                            case '>':
-                                if (handleTag()) {
-                                    break stateloop;
-                                }
-                                state = DATA;
-                                continue stateloop;
-                            case 'c':
-                            case 'C':
-                                contentIndex = 0;
-                                charsetIndex = 0;
-                                httpEquivIndex = Integer.MAX_VALUE;
-                                contentTypeIndex = Integer.MAX_VALUE;
-                                state = MetaScanner.ATTRIBUTE_NAME;
-                                break beforeattributenameloop;                                
-                            case 'h':
-                            case 'H':
-                                contentIndex = Integer.MAX_VALUE;
-                                charsetIndex = Integer.MAX_VALUE;
-                                httpEquivIndex = 0;
-                                contentTypeIndex = Integer.MAX_VALUE;
-                                state = MetaScanner.ATTRIBUTE_NAME;
-                                break beforeattributenameloop;                                
-                            default:
-                                contentIndex = Integer.MAX_VALUE;
-                                charsetIndex = Integer.MAX_VALUE;
-                                httpEquivIndex = Integer.MAX_VALUE;
-                                contentTypeIndex = Integer.MAX_VALUE;
-                                state = MetaScanner.ATTRIBUTE_NAME;
-                                break beforeattributenameloop;
-                            // continue stateloop;
-                        }
-                    }
-                    // FALLTHRU DON'T REORDER
-                case ATTRIBUTE_NAME:
-                    attributenameloop: for (;;) {
-                        c = read();
-                        switch (c) {
-                            case -1:
-                                break stateloop;
-                            case ' ':
-                            case '\t':
-                            case '\n':
-                            case '\u000C':
-                                state = MetaScanner.AFTER_ATTRIBUTE_NAME;
-                                continue stateloop;
-                            case '/':
-                                state = MetaScanner.SELF_CLOSING_START_TAG;
-                                continue stateloop;
-                            case '=':
-                                strBufLen = 0;
-                                contentTypeIndex = 0;
-                                state = MetaScanner.BEFORE_ATTRIBUTE_VALUE;
-                                break attributenameloop;
-                            // continue stateloop;
-                            case '>':
-                                if (handleTag()) {
-                                    break stateloop;
-                                }
-                                state = MetaScanner.DATA;
-                                continue stateloop;
-                            default:
-                                if (metaState == A) {
-                                    if (c >= 'A' && c <= 'Z') {
-                                        c += 0x20;
-                                    }
-                                    if (contentIndex < CONTENT.length && c == CONTENT[contentIndex]) {
-                                        ++contentIndex;
-                                    } else {
-                                        contentIndex = Integer.MAX_VALUE;
-                                    }
-                                    if (charsetIndex < CHARSET.length && c == CHARSET[charsetIndex]) {
-                                        ++charsetIndex;
-                                    } else {
-                                        charsetIndex = Integer.MAX_VALUE;
-                                    }
-                                    if (httpEquivIndex < HTTP_EQUIV.length && c == HTTP_EQUIV[httpEquivIndex]) {
-                                        ++httpEquivIndex;
-                                    } else {
-                                        httpEquivIndex = Integer.MAX_VALUE;
-                                    }                                    
-                                }
-                                continue;
-                        }
-                    }
-                    // FALLTHRU DON'T REORDER
-                case BEFORE_ATTRIBUTE_VALUE:
-                    beforeattributevalueloop: for (;;) {
-                        c = read();
-                        switch (c) {
-                            case -1:
-                                break stateloop;
-                            case ' ':
-                            case '\t':
-                            case '\n':
-                            case '\u000C':
-                                continue;
-                            case '"':
-                                state = MetaScanner.ATTRIBUTE_VALUE_DOUBLE_QUOTED;
-                                break beforeattributevalueloop;
-                            // continue stateloop;
-                            case '\'':
-                                state = MetaScanner.ATTRIBUTE_VALUE_SINGLE_QUOTED;
-                                continue stateloop;
-                            case '>':
-                                if (handleTag()) {
-                                    break stateloop;
-                                }
-                                state = MetaScanner.DATA;
-                                continue stateloop;
-                            default:
-                                handleCharInAttributeValue(c);
-                                state = MetaScanner.ATTRIBUTE_VALUE_UNQUOTED;
-                                continue stateloop;
-                        }
-                    }
-                    // FALLTHRU DON'T REORDER
-                case ATTRIBUTE_VALUE_DOUBLE_QUOTED:
-                    attributevaluedoublequotedloop: for (;;) {
-                        if (reconsume) {
-                            reconsume = false;
-                        } else {
-                            c = read();
-                        }
-                        switch (c) {
-                            case -1:
-                                break stateloop;
-                            case '"':
-                                handleAttributeValue();
-                                state = MetaScanner.AFTER_ATTRIBUTE_VALUE_QUOTED;
-                                break attributevaluedoublequotedloop;
-                            // continue stateloop;
-                            default:
-                                handleCharInAttributeValue(c);
-                                continue;
-                        }
-                    }
-                    // FALLTHRU DON'T REORDER
-                case AFTER_ATTRIBUTE_VALUE_QUOTED:
-                    afterattributevaluequotedloop: for (;;) {
-                        c = read();
-                        switch (c) {
-                            case -1:
-                                break stateloop;
-                            case ' ':
-                            case '\t':
-                            case '\n':
-                            case '\u000C':
-                                state = MetaScanner.BEFORE_ATTRIBUTE_NAME;
-                                continue stateloop;
-                            case '/':
-                                state = MetaScanner.SELF_CLOSING_START_TAG;
-                                break afterattributevaluequotedloop;
-                            // continue stateloop;
-                            case '>':
-                                if (handleTag()) {
-                                    break stateloop;
-                                }
-                                state = MetaScanner.DATA;
-                                continue stateloop;
-                            default:
-                                state = MetaScanner.BEFORE_ATTRIBUTE_NAME;
-                                reconsume = true;
-                                continue stateloop;
-                        }
-                    }
-                    // FALLTHRU DON'T REORDER
-                case SELF_CLOSING_START_TAG:
-                    c = read();
-                    switch (c) {
-                        case -1:
-                            break stateloop;
-                        case '>':
-                            if (handleTag()) {
-                                break stateloop;
-                            }
-                            state = MetaScanner.DATA;
-                            continue stateloop;
-                        default:
-                            state = MetaScanner.BEFORE_ATTRIBUTE_NAME;
-                            reconsume = true;
-                            continue stateloop;
-                    }
-                    // XXX reorder point
-                case ATTRIBUTE_VALUE_UNQUOTED:
-                    for (;;) {
-                        if (reconsume) {
-                            reconsume = false;
-                        } else {
-                            c = read();
-                        }
-                        switch (c) {
-                            case -1:
-                                break stateloop;
-                            case ' ':
-                            case '\t':
-                            case '\n':
-
-                            case '\u000C':
-                                handleAttributeValue();
-                                state = MetaScanner.BEFORE_ATTRIBUTE_NAME;
-                                continue stateloop;
-                            case '>':
-                                handleAttributeValue();
-                                if (handleTag()) {
-                                    break stateloop;
-                                }
-                                state = MetaScanner.DATA;
-                                continue stateloop;
-                            default:
-                                handleCharInAttributeValue(c);
-                                continue;
-                        }
-                    }
-                    // XXX reorder point
-                case AFTER_ATTRIBUTE_NAME:
-                    for (;;) {
-                        c = read();
-                        switch (c) {
-                            case -1:
-                                break stateloop;
-                            case ' ':
-                            case '\t':
-                            case '\n':
-                            case '\u000C':
-                                continue;
-                            case '/':
-                                handleAttributeValue();
-                                state = MetaScanner.SELF_CLOSING_START_TAG;
-                                continue stateloop;
-                            case '=':
-                                strBufLen = 0;
-                                contentTypeIndex = 0;
-                                state = MetaScanner.BEFORE_ATTRIBUTE_VALUE;
-                                continue stateloop;
-                            case '>':
-                                handleAttributeValue();
-                                if (handleTag()) {
-                                    break stateloop;
-                                }
-                                state = MetaScanner.DATA;
-                                continue stateloop;
-                            case 'c':
-                            case 'C':
-                                contentIndex = 0;
-                                charsetIndex = 0;
-                                state = MetaScanner.ATTRIBUTE_NAME;
-                                continue stateloop;
-                            default:
-                                contentIndex = Integer.MAX_VALUE;
-                                charsetIndex = Integer.MAX_VALUE;
-                                state = MetaScanner.ATTRIBUTE_NAME;
-                                continue stateloop;
-                        }
-                    }
-                    // XXX reorder point
-                case MARKUP_DECLARATION_OPEN:
-                    markupdeclarationopenloop: for (;;) {
-                        c = read();
-                        switch (c) {
-                            case -1:
-                                break stateloop;
-                            case '-':
-                                state = MetaScanner.MARKUP_DECLARATION_HYPHEN;
-                                break markupdeclarationopenloop;
-                            // continue stateloop;
-                            default:
-                                state = MetaScanner.SCAN_UNTIL_GT;
-                                reconsume = true;
-                                continue stateloop;
-                        }
-                    }
-                    // FALLTHRU DON'T REORDER
-                case MARKUP_DECLARATION_HYPHEN:
-                    markupdeclarationhyphenloop: for (;;) {
-                        c = read();
-                        switch (c) {
-                            case -1:
-                                break stateloop;
-                            case '-':
-                                state = MetaScanner.COMMENT_START;
-                                break markupdeclarationhyphenloop;
-                            // continue stateloop;
-                            default:
-                                state = MetaScanner.SCAN_UNTIL_GT;
-                                reconsume = true;
-                                continue stateloop;
-                        }
-                    }
-                    // FALLTHRU DON'T REORDER
-                case COMMENT_START:
-                    commentstartloop: for (;;) {
-                        c = read();
-                        switch (c) {
-                            case -1:
-                                break stateloop;
-                            case '-':
-                                state = MetaScanner.COMMENT_START_DASH;
-                                continue stateloop;
-                            case '>':
-                                state = MetaScanner.DATA;
-                                continue stateloop;
-                            default:
-                                state = MetaScanner.COMMENT;
-                                break commentstartloop;
-                            // continue stateloop;
-                        }
-                    }
-                    // FALLTHRU DON'T REORDER
-                case COMMENT:
-                    commentloop: for (;;) {
-                        c = read();
-                        switch (c) {
-                            case -1:
-                                break stateloop;
-                            case '-':
-                                state = MetaScanner.COMMENT_END_DASH;
-                                break commentloop;
-                            // continue stateloop;
-                            default:
-                                continue;
-                        }
-                    }
-                    // FALLTHRU DON'T REORDER
-                case COMMENT_END_DASH:
-                    commentenddashloop: for (;;) {
-                        c = read();
-                        switch (c) {
-                            case -1:
-                                break stateloop;
-                            case '-':
-                                state = MetaScanner.COMMENT_END;
-                                break commentenddashloop;
-                            // continue stateloop;
-                            default:
-                                state = MetaScanner.COMMENT;
-                                continue stateloop;
-                        }
-                    }
-                    // FALLTHRU DON'T REORDER
-                case COMMENT_END:
-                    for (;;) {
-                        c = read();
-                        switch (c) {
-                            case -1:
-                                break stateloop;
-                            case '>':
-                                state = MetaScanner.DATA;
-                                continue stateloop;
-                            case '-':
-                                continue;
-                            default:
-                                state = MetaScanner.COMMENT;
-                                continue stateloop;
-                        }
-                    }
-                    // XXX reorder point
-                case COMMENT_START_DASH:
-                    c = read();
-                    switch (c) {
-                        case -1:
-                            break stateloop;
-                        case '-':
-                            state = MetaScanner.COMMENT_END;
-                            continue stateloop;
-                        case '>':
-                            state = MetaScanner.DATA;
-                            continue stateloop;
-                        default:
-                            state = MetaScanner.COMMENT;
-                            continue stateloop;
-                    }
-                    // XXX reorder point
-                case ATTRIBUTE_VALUE_SINGLE_QUOTED:
-                    for (;;) {
-                        if (reconsume) {
-                            reconsume = false;
-                        } else {
-                            c = read();
-                        }
-                        switch (c) {
-                            case -1:
-                                break stateloop;
-                            case '\'':
-                                handleAttributeValue();
-                                state = MetaScanner.AFTER_ATTRIBUTE_VALUE_QUOTED;
-                                continue stateloop;
-                            default:
-                                handleCharInAttributeValue(c);
-                                continue;
-                        }
-                    }
-                    // XXX reorder point
-                case SCAN_UNTIL_GT:
-                    for (;;) {
-                        if (reconsume) {
-                            reconsume = false;
-                        } else {
-                            c = read();
-                        }
-                        switch (c) {
-                            case -1:
-                                break stateloop;
-                            case '>':
-                                state = MetaScanner.DATA;
-                                continue stateloop;
-                            default:
-                                continue;
-                        }
-                    }
-            }
-        }
-        stateSave  = state;
-    }
-
-    private void handleCharInAttributeValue(int c) {
-        if (metaState == A) {
-            if (contentIndex == CONTENT.length || charsetIndex == CHARSET.length) {
-                addToBuffer(c);
-            } else if (httpEquivIndex == HTTP_EQUIV.length) {
-                if (contentTypeIndex < CONTENT_TYPE.length && toAsciiLowerCase(c) == CONTENT_TYPE[contentTypeIndex]) {
-                    ++contentTypeIndex;
-                } else {
-                    contentTypeIndex = Integer.MAX_VALUE;
-                }
-            }
-        }
-    }
-
-    @Inline private int toAsciiLowerCase(int c) {
-        if (c >= 'A' && c <= 'Z') {
-            return c + 0x20;
-        }
-        return c;
-    }
-
-    /**
-     * Adds a character to the accumulation buffer.
-     * @param c the character to add
-     */
-    private void addToBuffer(int c) {
-        if (strBufLen == strBuf.length) {
-            char[] newBuf = new char[strBuf.length + (strBuf.length << 1)];
-            System.arraycopy(strBuf, 0, newBuf, 0, strBuf.length);
-            strBuf = newBuf;
-        }
-        strBuf[strBufLen++] = (char)c;
-    }
-
-    /**
-     * Attempts to extract a charset name from the accumulation buffer.
-     * @return <code>true</code> if successful
-     * @throws SAXException
-     */
-    private void handleAttributeValue() throws SAXException {
-        if (metaState != A) {
-            return;
-        }
-        if (contentIndex == CONTENT.length && content == null) {
-            content = Portability.newStringFromBuffer(strBuf, 0, strBufLen
-                 // CPPONLY: , treeBuilder
-            );
-            return;
-        }
-        if (charsetIndex == CHARSET.length && charset == null) {
-            charset = Portability.newStringFromBuffer(strBuf, 0, strBufLen
-                 // CPPONLY: , treeBuilder
-            );
-            return;
-        }
-        if (httpEquivIndex == HTTP_EQUIV.length
-                && httpEquivState == HTTP_EQUIV_NOT_SEEN) {
-            httpEquivState = (contentTypeIndex == CONTENT_TYPE.length) ? HTTP_EQUIV_CONTENT_TYPE
-                    : HTTP_EQUIV_OTHER;
-            return;
-        }
-    }
-
-    private boolean handleTag() throws SAXException {
-        boolean stop = handleTagInner();
-        Portability.releaseString(content);
-        content = null;
-        Portability.releaseString(charset);
-        charset = null;
-        httpEquivState = HTTP_EQUIV_NOT_SEEN;
-        return stop;
-    }
-    
-    private boolean handleTagInner() throws SAXException {
-        if (charset != null && tryCharset(charset)) {
-                return true;
-        }
-        if (content != null && httpEquivState == HTTP_EQUIV_CONTENT_TYPE) {
-            String extract = TreeBuilder.extractCharsetFromContent(content
-                // CPPONLY: , treeBuilder
-            );
-            if (extract == null) {
-                return false;
-            }
-            boolean success = tryCharset(extract);
-            Portability.releaseString(extract);
-            return success;
-        }
-        return false;
-    }
-
-    /**
-     * Tries to switch to an encoding.
-     * 
-     * @param encoding
-     * @return <code>true</code> if successful
-     * @throws SAXException
-     */
-    protected abstract boolean tryCharset(String encoding) throws SAXException;
-    
-}