/**
*******************************************************************************
* Copyright (C) 1996-2010, International Business Machines Corporation and    *
* others. All Rights Reserved.                                                *
*******************************************************************************
*/

package com.ibm.icu.dev.test.lang;

import java.io.FileWriter;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.Map;

import com.ibm.icu.lang.UCharacter;
import com.ibm.icu.lang.UCharacterCategory;

/**
* A class to compare the difference in methods between java.lang.Character and
* UCharacter
* @author Syn Wee Quek
* @since oct 06 2000
* @see com.ibm.icu.lang.UCharacter
*/

public final class UCharacterCompare
{ 
    // private variables ================================================

    private static Map<String, Integer> m_hashtable_ = new HashMap<String, Integer>();

    // public methods ======================================================

    /**
     * Main testing method
     */
    public static void main(String arg[]) {
        System.out.println("Starting character compare");
        try {
            FileWriter f;
            if (arg.length == 0)
                f = new FileWriter("compare.txt");
            else
                f = new FileWriter(arg[0]);
            PrintWriter p = new PrintWriter(f);
            p.print("char  character name                                                           ");
            p.println("method name               ucharacter character");
            for (char i = Character.MIN_VALUE; i < Character.MAX_VALUE; i++) {
                System.out.println("character \\u" + Integer.toHexString(i));
                if (UCharacter.isDefined(i) != Character.isDefined(i))
                    trackDifference(p, i, "isDefined()", "" + UCharacter.isDefined(i), "" + Character.isDefined(i));
                else {
                    if (UCharacter.digit(i, 10) != Character.digit(i, 10))
                        trackDifference(p, i, "digit()", "" + UCharacter.digit(i, 10), "" + Character.digit(i, 10));
                    if (UCharacter.getNumericValue(i) != Character.getNumericValue(i))
                        trackDifference(p, i, "getNumericValue()", "" + UCharacter.getNumericValue(i), ""
                                + Character.getNumericValue(i));
                    if (!compareType(UCharacter.getType(i), Character.getType(i)))
                        trackDifference(p, i, "getType()", "" + UCharacter.getType(i), "" + Character.getType(i));
                    if (UCharacter.isDigit(i) != Character.isDigit(i))
                        trackDifference(p, i, "isDigit()", "" + UCharacter.isDigit(i), "" + Character.isDigit(i));
                    if (UCharacter.isISOControl(i) != Character.isISOControl(i))
                        trackDifference(p, i, "isISOControl()", "" + UCharacter.isISOControl(i), ""
                                + Character.isISOControl(i));
                    if (UCharacter.isLetter(i) != Character.isLetter(i))
                        trackDifference(p, i, "isLetter()", "" + UCharacter.isLetter(i), "" + Character.isLetter(i));
                    if (UCharacter.isLetterOrDigit(i) != Character.isLetterOrDigit(i))
                        trackDifference(p, i, "isLetterOrDigit()", "" + UCharacter.isLetterOrDigit(i), ""
                                + Character.isLetterOrDigit(i));
                    if (UCharacter.isLowerCase(i) != Character.isLowerCase(i))
                        trackDifference(p, i, "isLowerCase()", "" + UCharacter.isLowerCase(i), ""
                                + Character.isLowerCase(i));
                    if (UCharacter.isWhitespace(i) != Character.isWhitespace(i))
                        trackDifference(p, i, "isWhitespace()", "" + UCharacter.isWhitespace(i), ""
                                + Character.isWhitespace(i));
                    if (UCharacter.isSpaceChar(i) != Character.isSpaceChar(i))
                        trackDifference(p, i, "isSpaceChar()", "" + UCharacter.isSpaceChar(i), ""
                                + Character.isSpaceChar(i));
                    if (UCharacter.isTitleCase(i) != Character.isTitleCase(i))
                        trackDifference(p, i, "isTitleChar()", "" + UCharacter.isTitleCase(i), ""
                                + Character.isTitleCase(i));
                    if (UCharacter.isUnicodeIdentifierPart(i) != Character.isUnicodeIdentifierPart(i))
                        trackDifference(p, i, "isUnicodeIdentifierPart()", "" + UCharacter.isUnicodeIdentifierPart(i),
                                "" + Character.isUnicodeIdentifierPart(i));
                    if (UCharacter.isUnicodeIdentifierStart(i) != Character.isUnicodeIdentifierStart(i))
                        trackDifference(p, i, "isUnicodeIdentifierStart()",
                                "" + UCharacter.isUnicodeIdentifierStart(i), "" + Character.isUnicodeIdentifierStart(i));
                    if (UCharacter.isIdentifierIgnorable(i) != Character.isIdentifierIgnorable(i))
                        trackDifference(p, i, "isIdentifierIgnorable()", "" + UCharacter.isIdentifierIgnorable(i), ""
                                + Character.isIdentifierIgnorable(i));
                    if (UCharacter.isUpperCase(i) != Character.isUpperCase(i))
                        trackDifference(p, i, "isUpperCase()", "" + UCharacter.isUpperCase(i), ""
                                + Character.isUpperCase(i));
                    if (UCharacter.toLowerCase(i) != Character.toLowerCase(i))
                        trackDifference(p, i, "toLowerCase()", Integer.toHexString(UCharacter.toLowerCase(i)), Integer
                                .toHexString(Character.toLowerCase(i)));
                    if (!UCharacter.toString(i).equals(new Character(i).toString()))
                        trackDifference(p, i, "toString()", UCharacter.toString(i), new Character(i).toString());
                    if (UCharacter.toTitleCase(i) != Character.toTitleCase(i))
                        trackDifference(p, i, "toTitleCase()", Integer.toHexString(UCharacter.toTitleCase(i)), Integer
                                .toHexString(Character.toTitleCase(i)));
                    if (UCharacter.toUpperCase(i) != Character.toUpperCase(i))
                        trackDifference(p, i, "toUpperCase()", Integer.toHexString(UCharacter.toUpperCase(i)), Integer
                                .toHexString(Character.toUpperCase(i)));
                }
            }
            summary(p);
            p.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    // private methods ===================================================

    /**
     * Comparing types
     * 
     * @param uchartype
     *            UCharacter type
     * @param jchartype
     *            java.lang.Character type
     */
    private static boolean compareType(int uchartype, int jchartype) {
        if (uchartype == UCharacterCategory.UNASSIGNED && jchartype == Character.UNASSIGNED)
            return true;
        if (uchartype == UCharacterCategory.UPPERCASE_LETTER && jchartype == Character.UPPERCASE_LETTER)
            return true;
        if (uchartype == UCharacterCategory.LOWERCASE_LETTER && jchartype == Character.LOWERCASE_LETTER)
            return true;
        if (uchartype == UCharacterCategory.TITLECASE_LETTER && jchartype == Character.TITLECASE_LETTER)
            return true;
        if (uchartype == UCharacterCategory.MODIFIER_LETTER && jchartype == Character.MODIFIER_LETTER)
            return true;
        if (uchartype == UCharacterCategory.OTHER_LETTER && jchartype == Character.OTHER_LETTER)
            return true;
        if (uchartype == UCharacterCategory.NON_SPACING_MARK && jchartype == Character.NON_SPACING_MARK)
            return true;
        if (uchartype == UCharacterCategory.ENCLOSING_MARK && jchartype == Character.ENCLOSING_MARK)
            return true;
        if (uchartype == UCharacterCategory.COMBINING_SPACING_MARK && jchartype == Character.COMBINING_SPACING_MARK)
            return true;
        if (uchartype == UCharacterCategory.DECIMAL_DIGIT_NUMBER && jchartype == Character.DECIMAL_DIGIT_NUMBER)
            return true;
        if (uchartype == UCharacterCategory.LETTER_NUMBER && jchartype == Character.LETTER_NUMBER)
            return true;
        if (uchartype == UCharacterCategory.OTHER_NUMBER && jchartype == Character.OTHER_NUMBER)
            return true;
        if (uchartype == UCharacterCategory.SPACE_SEPARATOR && jchartype == Character.SPACE_SEPARATOR)
            return true;
        if (uchartype == UCharacterCategory.LINE_SEPARATOR && jchartype == Character.LINE_SEPARATOR)
            return true;
        if (uchartype == UCharacterCategory.PARAGRAPH_SEPARATOR && jchartype == Character.PARAGRAPH_SEPARATOR)
            return true;
        if (uchartype == UCharacterCategory.CONTROL && jchartype == Character.CONTROL)
            return true;
        if (uchartype == UCharacterCategory.FORMAT && jchartype == Character.FORMAT)
            return true;
        if (uchartype == UCharacterCategory.PRIVATE_USE && jchartype == Character.PRIVATE_USE)
            return true;
        if (uchartype == UCharacterCategory.SURROGATE && jchartype == Character.SURROGATE)
            return true;
        if (uchartype == UCharacterCategory.DASH_PUNCTUATION && jchartype == Character.DASH_PUNCTUATION)
            return true;
        if (uchartype == UCharacterCategory.START_PUNCTUATION && jchartype == Character.START_PUNCTUATION)
            return true;
        if (uchartype == UCharacterCategory.END_PUNCTUATION && jchartype == Character.END_PUNCTUATION)
            return true;
        if (uchartype == UCharacterCategory.CONNECTOR_PUNCTUATION && jchartype == Character.CONNECTOR_PUNCTUATION)
            return true;
        if (uchartype == UCharacterCategory.OTHER_PUNCTUATION && jchartype == Character.OTHER_PUNCTUATION)
            return true;
        if (uchartype == UCharacterCategory.MATH_SYMBOL && jchartype == Character.MATH_SYMBOL)
            return true;
        if (uchartype == UCharacterCategory.CURRENCY_SYMBOL && jchartype == Character.CURRENCY_SYMBOL)
            return true;
        if (uchartype == UCharacterCategory.MODIFIER_SYMBOL && jchartype == Character.MODIFIER_SYMBOL)
            return true;
        if (uchartype == UCharacterCategory.OTHER_SYMBOL && jchartype == Character.OTHER_SYMBOL)
            return true;
        if (uchartype == UCharacterCategory.INITIAL_PUNCTUATION && jchartype == Character.START_PUNCTUATION)
            return true;
        if (uchartype == UCharacterCategory.FINAL_PUNCTUATION && jchartype == Character.END_PUNCTUATION)
            return true;
        /*
         * if (uchartype == UCharacterCategory.GENERAL_OTHER_TYPES && jchartype == Character.GENERAL_OTHER_TYPES) return
         * true;
         */
        return false;
    }

    /**
     * Difference writing to file
     * 
     * @param f
     *            file outputstream
     * @param ch
     *            code point
     * @param method
     *            for testing
     * @param ucharval
     *            UCharacter value after running method
     * @param charval
     *            Character value after running method
     */
    private static void trackDifference(PrintWriter f, int ch, String method, String ucharval, String charval)
            throws Exception {
        if (m_hashtable_.containsKey(method)) {
            Integer value = m_hashtable_.get(method);
            m_hashtable_.put(method, new Integer(value.intValue() + 1));
        } else
            m_hashtable_.put(method, new Integer(1));

        String temp = Integer.toHexString(ch);
        StringBuffer s = new StringBuffer(temp);
        for (int i = 0; i < 6 - temp.length(); i++)
            s.append(' ');
        temp = UCharacter.getExtendedName(ch);
        if (temp == null)
            temp = " ";
        s.append(temp);
        for (int i = 0; i < 73 - temp.length(); i++)
            s.append(' ');

        s.append(method);
        for (int i = 0; i < 27 - method.length(); i++)
            s.append(' ');
        s.append(ucharval);
        for (int i = 0; i < 11 - ucharval.length(); i++)
            s.append(' ');
        s.append(charval);
        f.println(s.toString());
    }

    /**
     * Does up a summary of the differences
     * 
     * @param f
     *            file outputstream
     */
    private static void summary(PrintWriter f) {
        f.println("==================================================");
        f.println("Summary of differences");
        for (String s : m_hashtable_.keySet()) {
            StringBuilder method = new StringBuilder(s);
            int count = (m_hashtable_.get(s)).intValue();
            for (int i = 30 - method.length(); i > 0; i--)
                method.append(' ');
            f.println(method + "  " + count);
        }
    }
}