/*******************************************************************************
 * Copyright (c) 2000, 2003 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Common Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html
 * 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/

package net.sourceforge.phpdt.internal.ui.text.spelling.engine;

/**
 * Default phonetic hash provider for english languages.
 * <p>
 * This algorithm uses an adapted version double metaphone algorithm by Lawrence
 * Philips.
 * <p>
 * 
 * @since 3.0
 */
public final class DefaultPhoneticHashProvider implements IPhoneticHashProvider {

	private static final String[] meta01 = { "ACH", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta02 = { "BACHER", "MACHER", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

	private static final String[] meta03 = { "CAESAR", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta04 = { "CHIA", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta05 = { "CH", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta06 = { "CHAE", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta07 = { "HARAC", "HARIS", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

	private static final String[] meta08 = { "HOR", "HYM", "HIA", "HEM", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$

	private static final String[] meta09 = { "CHORE", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta10 = { "VAN ", "VON ", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

	private static final String[] meta11 = { "SCH", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta12 = { "ORCHES", "ARCHIT", "ORCHID", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$

	private static final String[] meta13 = { "T", "S", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

	private static final String[] meta14 = { "A", "O", "U", "E", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$

	private static final String[] meta15 = {
			"L", "R", "N", "M", "B", "H", "F", "V", "W", " ", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$ //$NON-NLS-9$ //$NON-NLS-10$ //$NON-NLS-11$

	private static final String[] meta16 = { "MC", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta17 = { "CZ", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta18 = { "WICZ", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta19 = { "CIA", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta20 = { "CC", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta21 = { "I", "E", "H", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$

	private static final String[] meta22 = { "HU", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta23 = { "UCCEE", "UCCES", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

	private static final String[] meta24 = { "CK", "CG", "CQ", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$

	private static final String[] meta25 = { "CI", "CE", "CY", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$

	private static final String[] meta26 = { "GN", "KN", "PN", "WR", "PS", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$

	private static final String[] meta27 = { " C", " Q", " G", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$

	private static final String[] meta28 = { "C", "K", "Q", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$

	private static final String[] meta29 = { "CE", "CI", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

	private static final String[] meta30 = { "DG", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta31 = { "I", "E", "Y", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$

	private static final String[] meta32 = { "DT", "DD", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

	private static final String[] meta33 = { "B", "H", "D", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$

	private static final String[] meta34 = { "B", "H", "D", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$

	private static final String[] meta35 = { "B", "H", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

	private static final String[] meta36 = { "C", "G", "L", "R", "T", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$

	private static final String[] meta37 = { "EY", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta38 = { "LI", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta39 = {
			"ES", "EP", "EB", "EL", "EY", "IB", "IL", "IN", "IE", "EI", "ER", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$ //$NON-NLS-9$ //$NON-NLS-10$ //$NON-NLS-11$ //$NON-NLS-12$

	private static final String[] meta40 = { "ER", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta41 = { "DANGER", "RANGER", "MANGER", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$

	private static final String[] meta42 = { "E", "I", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

	private static final String[] meta43 = { "RGY", "OGY", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

	private static final String[] meta44 = { "E", "I", "Y", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$

	private static final String[] meta45 = { "AGGI", "OGGI", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

	private static final String[] meta46 = { "VAN ", "VON ", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

	private static final String[] meta47 = { "SCH", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta48 = { "ET", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta49 = { "C", "X", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

	private static final String[] meta50 = { "JOSE", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta51 = { "SAN ", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta52 = { "SAN ", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta53 = { "JOSE", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta54 = {
			"L", "T", "K", "S", "N", "M", "B", "Z", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$ //$NON-NLS-9$

	private static final String[] meta55 = { "S", "K", "L", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$

	private static final String[] meta56 = { "ILLO", "ILLA", "ALLE", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$

	private static final String[] meta57 = { "AS", "OS", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

	private static final String[] meta58 = { "A", "O", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

	private static final String[] meta59 = { "ALLE", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta60 = { "UMB", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta61 = { "ER", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta62 = { "P", "B", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

	private static final String[] meta63 = { "IE", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta64 = { "ME", "MA", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

	private static final String[] meta65 = { "ISL", "YSL", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

	private static final String[] meta66 = { "SUGAR", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta67 = { "SH", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta68 = { "HEIM", "HOEK", "HOLM", "HOLZ", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$

	private static final String[] meta69 = { "SIO", "SIA", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

	private static final String[] meta70 = { "SIAN", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta71 = { "M", "N", "L", "W", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$

	private static final String[] meta72 = { "Z", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta73 = { "Z", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta74 = { "SC", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta75 = {
			"OO", "ER", "EN", "UY", "ED", "EM", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$

	private static final String[] meta76 = { "ER", "EN", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

	private static final String[] meta77 = { "I", "E", "Y", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$

	private static final String[] meta78 = { "AI", "OI", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

	private static final String[] meta79 = { "S", "Z", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

	private static final String[] meta80 = { "TION", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta81 = { "TIA", "TCH", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

	private static final String[] meta82 = { "TH", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta83 = { "TTH", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta84 = { "OM", "AM", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

	private static final String[] meta85 = { "VAN ", "VON ", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

	private static final String[] meta86 = { "SCH", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta87 = { "T", "D", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

	private static final String[] meta88 = { "WR", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta89 = { "WH", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta90 = {
			"EWSKI", "EWSKY", "OWSKI", "OWSKY", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$

	private static final String[] meta91 = { "SCH", "" }; //$NON-NLS-1$ //$NON-NLS-2$

	private static final String[] meta92 = { "WICZ", "WITZ", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

	private static final String[] meta93 = { "IAU", "EAU", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

	private static final String[] meta94 = { "AU", "OU", "" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

	private static final String[] meta95 = { "W", "K", "CZ", "WITZ" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$

	/** The mutator characters */
	private static final char[] MUTATOR_CHARACTERS = { 'A', 'B', 'X', 'S', 'K',
			'J', 'T', 'F', 'H', 'L', 'M', 'N', 'P', 'R', '0' };

	/** The vowel characters */
	private static final char[] VOWEL_CHARACTERS = new char[] { 'A', 'E', 'I',
			'O', 'U', 'Y' };

	/**
	 * Test whether the specified string contains one of the candidates in the
	 * list.
	 * 
	 * @param candidates
	 *            Array of candidates to check
	 * @param token
	 *            The token to check for occurrences of the candidates
	 * @param offset
	 *            The offset where to begin checking in the string
	 * @param length
	 *            The length of the range in the string to check
	 * @return <code>true</code> iff the string contains one of the
	 *         candidates, <code>false</code> otherwise.
	 */
	protected static final boolean hasOneOf(final String[] candidates,
			final char[] token, final int offset, final int length) {

		if (offset < 0 || offset >= token.length || candidates.length == 0)
			return false;

		final String checkable = new String(token, offset, length);
		for (int index = 0; index < candidates.length; index++) {

			if (candidates[index].equals(checkable))
				return true;
		}
		return false;
	}

	/**
	 * Test whether the specified token contains one of the candidates in the
	 * list.
	 * 
	 * @param candidates
	 *            Array of candidates to check
	 * @param token
	 *            The token to check for occurrences of the candidates
	 * @return <code>true</code> iff the string contains one of the
	 *         candidates, <code>false</code> otherwise.
	 */
	protected static final boolean hasOneOf(final String[] candidates,
			final String token) {

		for (int index = 0; index < candidates.length; index++) {

			if (token.indexOf(candidates[index]) >= 0)
				return true;
		}
		return false;
	}

	/**
	 * Tests whether the specified token contains a vowel at the specified
	 * offset.
	 * 
	 * @param token
	 *            The token to check for a vowel
	 * @param offset
	 *            The offset where to begin checking in the token
	 * @param length
	 *            The length of the range in the token to check
	 * @return <code>true</code> iff the token contains a vowel,
	 *         <code>false</code> otherwise.
	 */
	protected static final boolean hasVowel(final char[] token,
			final int offset, final int length) {

		if (offset >= 0 && offset < length) {

			final char character = token[offset];
			for (int index = 0; index < VOWEL_CHARACTERS.length; index++) {

				if (VOWEL_CHARACTERS[index] == character)
					return true;
			}
		}
		return false;
	}

	/*
	 * @see org.eclipse.spelling.done.IPhoneticHasher#getHash(java.lang.String)
	 */
	public final String getHash(final String word) {

		final String input = word.toUpperCase() + "     "; //$NON-NLS-1$
		final char[] hashable = input.toCharArray();

		final boolean has95 = hasOneOf(meta95, input);
		final StringBuffer buffer = new StringBuffer(hashable.length);

		int offset = 0;
		if (hasOneOf(meta26, hashable, 0, 2))
			offset += 1;

		if (hashable[0] == 'X') {
			buffer.append('S');
			offset += 1;
		}

		while (offset < hashable.length) {

			switch (hashable[offset]) {
			case 'A':
			case 'E':
			case 'I':
			case 'O':
			case 'U':
			case 'Y':
				if (offset == 0)
					buffer.append('A');
				offset += 1;
				break;
			case 'B':
				buffer.append('P');
				if (hashable[offset + 1] == 'B')
					offset += 2;
				else
					offset += 1;
				break;
			case 'C':
				if ((offset > 1)
						&& !hasVowel(hashable, offset - 2, hashable.length)
						&& hasOneOf(meta01, hashable, (offset - 1), 3)
						&& (hashable[offset + 2] != 'I')
						&& (hashable[offset + 2] != 'E')
						|| hasOneOf(meta02, hashable, (offset - 2), 6)) {
					buffer.append('K');
					offset += 2;
					break;
				}
				if ((offset == 0) && hasOneOf(meta03, hashable, offset, 6)) {
					buffer.append('S');
					offset += 2;
					break;
				}
				if (hasOneOf(meta04, hashable, offset, 4)) {
					buffer.append('K');
					offset += 2;
					break;
				}
				if (hasOneOf(meta05, hashable, offset, 2)) {
					if ((offset > 0) && hasOneOf(meta06, hashable, offset, 4)) {
						buffer.append('K');
						offset += 2;
						break;
					}
					if ((offset == 0)
							&& hasOneOf(meta07, hashable, (offset + 1), 5)
							|| hasOneOf(meta08, hashable, offset + 1, 3)
							&& !hasOneOf(meta09, hashable, 0, 5)) {
						buffer.append('K');
						offset += 2;
						break;
					}
					if (hasOneOf(meta10, hashable, 0, 4)
							|| hasOneOf(meta11, hashable, 0, 3)
							|| hasOneOf(meta12, hashable, offset - 2, 6)
							|| hasOneOf(meta13, hashable, offset + 2, 1)
							|| (hasOneOf(meta14, hashable, offset - 1, 1) || (offset == 0))
							&& hasOneOf(meta15, hashable, offset + 2, 1)) {
						buffer.append('K');
					} else {
						if (offset > 0) {
							if (hasOneOf(meta16, hashable, 0, 2))
								buffer.append('K');
							else
								buffer.append('X');
						} else {
							buffer.append('X');
						}
					}
					offset += 2;
					break;
				}
				if (hasOneOf(meta17, hashable, offset, 2)
						&& !hasOneOf(meta18, hashable, offset, 4)) {
					buffer.append('S');
					offset += 2;
					break;
				}
				if (hasOneOf(meta19, hashable, offset, 2)) {
					buffer.append('X');
					offset += 2;
					break;
				}
				if (hasOneOf(meta20, hashable, offset, 2)
						&& !((offset == 1) && hashable[0] == 'M')) {
					if (hasOneOf(meta21, hashable, offset + 2, 1)
							&& !hasOneOf(meta22, hashable, offset + 2, 2)) {
						if (((offset == 1) && (hashable[offset - 1] == 'A'))
								|| hasOneOf(meta23, hashable, (offset - 1), 5))
							buffer.append("KS"); //$NON-NLS-1$
						else
							buffer.append('X');
						offset += 3;
						break;
					} else {
						buffer.append('K');
						offset += 2;
						break;
					}
				}
				if (hasOneOf(meta24, hashable, offset, 2)) {
					buffer.append('K');
					offset += 2;
					break;
				} else if (hasOneOf(meta25, hashable, offset, 2)) {
					buffer.append('S');
					offset += 2;
					break;
				}
				buffer.append('K');
				if (hasOneOf(meta27, hashable, offset + 1, 2))
					offset += 3;
				else if (hasOneOf(meta28, hashable, offset + 1, 1)
						&& !hasOneOf(meta29, hashable, offset + 1, 2))
					offset += 2;
				else
					offset += 1;
				break;
			case '\u00C7':
				buffer.append('S');
				offset += 1;
				break;
			case 'D':
				if (hasOneOf(meta30, hashable, offset, 2)) {
					if (hasOneOf(meta31, hashable, offset + 2, 1)) {
						buffer.append('J');
						offset += 3;
						break;
					} else {
						buffer.append("TK"); //$NON-NLS-1$
						offset += 2;
						break;
					}
				}
				buffer.append('T');
				if (hasOneOf(meta32, hashable, offset, 2)) {
					offset += 2;
				} else {
					offset += 1;
				}
				break;
			case 'F':
				if (hashable[offset + 1] == 'F')
					offset += 2;
				else
					offset += 1;
				buffer.append('F');
				break;
			case 'G':
				if (hashable[offset + 1] == 'H') {
					if ((offset > 0)
							&& !hasVowel(hashable, offset - 1, hashable.length)) {
						buffer.append('K');
						offset += 2;
						break;
					}
					if (offset < 3) {
						if (offset == 0) {
							if (hashable[offset + 2] == 'I')
								buffer.append('J');
							else
								buffer.append('K');
							offset += 2;
							break;
						}
					}
					if ((offset > 1)
							&& hasOneOf(meta33, hashable, offset - 2, 1)
							|| ((offset > 2) && hasOneOf(meta34, hashable,
									offset - 3, 1))
							|| ((offset > 3) && hasOneOf(meta35, hashable,
									offset - 4, 1))) {
						offset += 2;
						break;
					} else {
						if ((offset > 2) && (hashable[offset - 1] == 'U')
								&& hasOneOf(meta36, hashable, offset - 3, 1)) {
							buffer.append('F');
						} else {
							if ((offset > 0) && (hashable[offset - 1] != 'I'))
								buffer.append('K');
						}
						offset += 2;
						break;
					}
				}
				if (hashable[offset + 1] == 'N') {
					if ((offset == 1) && hasVowel(hashable, 0, hashable.length)
							&& !has95) {
						buffer.append("KN"); //$NON-NLS-1$
					} else {
						if (!hasOneOf(meta37, hashable, offset + 2, 2)
								&& (hashable[offset + 1] != 'Y') && !has95) {
							buffer.append("N"); //$NON-NLS-1$
						} else {
							buffer.append("KN"); //$NON-NLS-1$
						}
					}
					offset += 2;
					break;
				}
				if (hasOneOf(meta38, hashable, offset + 1, 2) && !has95) {
					buffer.append("KL"); //$NON-NLS-1$
					offset += 2;
					break;
				}
				if ((offset == 0)
						&& ((hashable[offset + 1] == 'Y') || hasOneOf(meta39,
								hashable, offset + 1, 2))) {
					buffer.append('K');
					offset += 2;
					break;
				}
				if ((hasOneOf(meta40, hashable, offset + 1, 2) || (hashable[offset + 1] == 'Y'))
						&& !hasOneOf(meta41, hashable, 0, 6)
						&& !hasOneOf(meta42, hashable, offset - 1, 1)
						&& !hasOneOf(meta43, hashable, offset - 1, 3)) {
					buffer.append('K');
					offset += 2;
					break;
				}
				if (hasOneOf(meta44, hashable, offset + 1, 1)
						|| hasOneOf(meta45, hashable, offset - 1, 4)) {
					if (hasOneOf(meta46, hashable, 0, 4)
							|| hasOneOf(meta47, hashable, 0, 3)
							|| hasOneOf(meta48, hashable, offset + 1, 2)) {
						buffer.append('K');
					} else {
						buffer.append('J');
					}
					offset += 2;
					break;
				}
				if (hashable[offset + 1] == 'G')
					offset += 2;
				else
					offset += 1;
				buffer.append('K');
				break;
			case 'H':
				if (((offset == 0) || hasVowel(hashable, offset - 1,
						hashable.length))
						&& hasVowel(hashable, offset + 1, hashable.length)) {
					buffer.append('H');
					offset += 2;
				} else {
					offset += 1;
				}
				break;
			case 'J':
				if (hasOneOf(meta50, hashable, offset, 4)
						|| hasOneOf(meta51, hashable, 0, 4)) {
					if ((offset == 0) && (hashable[offset + 4] == ' ')
							|| hasOneOf(meta52, hashable, 0, 4)) {
						buffer.append('H');
					} else {
						buffer.append('J');
					}
					offset += 1;
					break;
				}
				if ((offset == 0) && !hasOneOf(meta53, hashable, offset, 4)) {
					buffer.append('J');
				} else {
					if (hasVowel(hashable, offset - 1, hashable.length)
							&& !has95
							&& ((hashable[offset + 1] == 'A') || hashable[offset + 1] == 'O')) {
						buffer.append('J');
					} else {
						if (offset == (hashable.length - 1)) {
							buffer.append('J');
						} else {
							if (!hasOneOf(meta54, hashable, offset + 1, 1)
									&& !hasOneOf(meta55, hashable, offset - 1,
											1)) {
								buffer.append('J');
							}
						}
					}
				}
				if (hashable[offset + 1] == 'J')
					offset += 2;
				else
					offset += 1;
				break;
			case 'K':
				if (hashable[offset + 1] == 'K')
					offset += 2;
				else
					offset += 1;
				buffer.append('K');
				break;
			case 'L':
				if (hashable[offset + 1] == 'L') {
					if (((offset == (hashable.length - 3)) && hasOneOf(meta56,
							hashable, offset - 1, 4))
							|| ((hasOneOf(meta57, hashable,
									(hashable.length - 1) - 1, 2) || hasOneOf(
									meta58, hashable, hashable.length - 1, 1)) && hasOneOf(
									meta59, hashable, offset - 1, 4))) {
						buffer.append('L');
						offset += 2;
						break;
					}
					offset += 2;
				} else
					offset += 1;
				buffer.append('L');
				break;
			case 'M':
				if ((hasOneOf(meta60, hashable, offset - 1, 3) && (((offset + 1) == (hashable.length - 1)) || hasOneOf(
						meta61, hashable, offset + 2, 2)))
						|| (hashable[offset + 1] == 'M'))
					offset += 2;
				else
					offset += 1;
				buffer.append('M');
				break;
			case 'N':
				if (hashable[offset + 1] == 'N')
					offset += 2;
				else
					offset += 1;
				buffer.append('N');
				break;
			case '\u00D1':
				offset += 1;
				buffer.append('N');
				break;
			case 'P':
				if (hashable[offset + 1] == 'N') {
					buffer.append('F');
					offset += 2;
					break;
				}
				if (hasOneOf(meta62, hashable, offset + 1, 1))
					offset += 2;
				else
					offset += 1;
				buffer.append('P');
				break;
			case 'Q':
				if (hashable[offset + 1] == 'Q')
					offset += 2;
				else
					offset += 1;
				buffer.append('K');
				break;
			case 'R':
				if (!((offset == (hashable.length - 1)) && !has95
						&& hasOneOf(meta63, hashable, offset - 2, 2) && !hasOneOf(
						meta64, hashable, offset - 4, 2)))
					buffer.append('R');
				if (hashable[offset + 1] == 'R')
					offset += 2;
				else
					offset += 1;
				break;
			case 'S':
				if (hasOneOf(meta65, hashable, offset - 1, 3)) {
					offset += 1;
					break;
				}
				if ((offset == 0) && hasOneOf(meta66, hashable, offset, 5)) {
					buffer.append('X');
					offset += 1;
					break;
				}
				if (hasOneOf(meta67, hashable, offset, 2)) {
					if (hasOneOf(meta68, hashable, offset + 1, 4))
						buffer.append('S');
					else
						buffer.append('X');
					offset += 2;
					break;
				}
				if (hasOneOf(meta69, hashable, offset, 3)
						|| hasOneOf(meta70, hashable, offset, 4)) {
					buffer.append('S');
					offset += 3;
					break;
				}
				if (((offset == 0) && hasOneOf(meta71, hashable, offset + 1, 1))
						|| hasOneOf(meta72, hashable, offset + 1, 1)) {
					buffer.append('S');
					if (hasOneOf(meta73, hashable, offset + 1, 1))
						offset += 2;
					else
						offset += 1;
					break;
				}
				if (hasOneOf(meta74, hashable, offset, 2)) {
					if (hashable[offset + 2] == 'H')
						if (hasOneOf(meta75, hashable, offset + 3, 2)) {
							if (hasOneOf(meta76, hashable, offset + 3, 2)) {
								buffer.append("X"); //$NON-NLS-1$
							} else {
								buffer.append("SK"); //$NON-NLS-1$
							}
							offset += 3;
							break;
						} else {
							buffer.append('X');
							offset += 3;
							break;
						}
					if (hasOneOf(meta77, hashable, offset + 2, 1)) {
						buffer.append('S');
						offset += 3;
						break;
					}
					buffer.append("SK"); //$NON-NLS-1$
					offset += 3;
					break;
				}
				if (!((offset == (hashable.length - 1)) && hasOneOf(meta78,
						hashable, offset - 2, 2)))
					buffer.append('S');
				if (hasOneOf(meta79, hashable, offset + 1, 1))
					offset += 2;
				else
					offset += 1;
				break;
			case 'T':
				if (hasOneOf(meta80, hashable, offset, 4)) {
					buffer.append('X');
					offset += 3;
					break;
				}
				if (hasOneOf(meta81, hashable, offset, 3)) {
					buffer.append('X');
					offset += 3;
					break;
				}
				if (hasOneOf(meta82, hashable, offset, 2)
						|| hasOneOf(meta83, hashable, offset, 3)) {
					if (hasOneOf(meta84, hashable, (offset + 2), 2)
							|| hasOneOf(meta85, hashable, 0, 4)
							|| hasOneOf(meta86, hashable, 0, 3)) {
						buffer.append('T');
					} else {
						buffer.append('0');
					}
					offset += 2;
					break;
				}
				if (hasOneOf(meta87, hashable, offset + 1, 1)) {
					offset += 2;
				} else
					offset += 1;
				buffer.append('T');
				break;
			case 'V':
				if (hashable[offset + 1] == 'V')
					offset += 2;
				else
					offset += 1;
				buffer.append('F');
				break;
			case 'W':
				if (hasOneOf(meta88, hashable, offset, 2)) {
					buffer.append('R');
					offset += 2;
					break;
				}
				if ((offset == 0)
						&& (hasVowel(hashable, offset + 1, hashable.length) || hasOneOf(
								meta89, hashable, offset, 2))) {
					buffer.append('A');
				}
				if (((offset == (hashable.length - 1)) && hasVowel(hashable,
						offset - 1, hashable.length))
						|| hasOneOf(meta90, hashable, offset - 1, 5)
						|| hasOneOf(meta91, hashable, 0, 3)) {
					buffer.append('F');
					offset += 1;
					break;
				}
				if (hasOneOf(meta92, hashable, offset, 4)) {
					buffer.append("TS"); //$NON-NLS-1$
					offset += 4;
					break;
				}
				offset += 1;
				break;
			case 'X':
				if (!((offset == (hashable.length - 1)) && (hasOneOf(meta93,
						hashable, offset - 3, 3) || hasOneOf(meta94, hashable,
						offset - 2, 2))))
					buffer.append("KS"); //$NON-NLS-1$
				if (hasOneOf(meta49, hashable, offset + 1, 1))
					offset += 2;
				else
					offset += 1;
				break;
			case 'Z':
				if (hashable[offset + 1] == 'H') {
					buffer.append('J');
					offset += 2;
					break;
				} else {
					buffer.append('S');
				}
				if (hashable[offset + 1] == 'Z')
					offset += 2;
				else
					offset += 1;
				break;
			default:
				offset += 1;
			}
		}
		return buffer.toString();
	}

	/*
	 * @see org.eclipse.spelling.done.IPhoneticHasher#getMutators()
	 */
	public final char[] getMutators() {
		return MUTATOR_CHARACTERS;
	}
}
