/*
 * [FunducRegexSearch.java]
 *
 * Summary: Funduc Search strings reserve chars for regex use.
 *
 * Copyright: (c) 2002-2017 Roedy Green, Canadian Mind Products, http://mindprod.com
 *
 * Licence: This software may be copied and used freely for any purpose but military.
 *          http://mindprod.com/contact/nonmil.html
 *
 * Requires: JDK 1.8+
 *
 * Created with: JetBrains IntelliJ IDEA IDE http://www.jetbrains.com/idea/
 *
 * Version History:
 *  4.5 2009-02-26 add both Java string quoting and plain for Java search/regexes.
 */
package com.mindprod.quoter;

/**
 * Funduc Search strings reserve chars for regex use.
 * <p/>
 * These must be quoted with a leading \. - + * ? ( ) [ ] \ | $ ^ !
 *
 * @author Roedy Green, Canadian Mind Products
 * @version 4.5 2009-02-26 add both Java string quoting and plain for Java search/regexes.
 * @since 2002-06-19
 */
final class FunducRegexSearch extends Translator
    {
    private static final String[] trt;

    static
        {
        // initialize the table array
        trt = new String[ 256 ];
        for ( int i = 0; i < 32; i++ )
            {
            // to hex \0xhh
            trt[ i ] =
                    "\\0x" + Integer.toHexString( i + 0x100 ).substring( 1, 3 );
            }
        for ( int i = 32; i < 127; i++ )
            {
            // leave char unmolested.
            trt[ i ] = String.valueOf( ( char ) i ).intern();
            }
        for ( int i = 127; i < 256; i++ )
            {
            // to hex \0xhh
            trt[ i ] =
                    "\\0x" + Integer.toHexString( i + 0x100 ).substring( 1, 3 );
            }
        // override with chars that have special Funduc search representations
        // - + * ? ( ) [ ] \ | $ ^ !
        trt[ 7 ] = "\\a";
        trt[ 8 ] = "\\b";/* Backspace character */
        trt[ 9 ] = "\\t";/* TAB */
        trt[ 10 ] = "$";/* Line Feed clipboard strips cr in crlf, replace it */
        trt[ 11 ] = "\\v";/* Vertical TAB */
        trt[ 12 ] = "\\f";/* Form Feed */
        trt[ 13 ] = "$";/* cr */
        trt[ '!' ] = "\\!";/* ! */
        trt[ '$' ] = "\\$";/* $ */
        trt[ '(' ] = "\\(";/* ( */
        trt[ ')' ] = "\\)";/* ) */
        trt[ '*' ] = "\\*";/* * */
        trt[ '+' ] = "\\+";/* + */
        trt[ '-' ] = "\\-";/* - */
        trt[ '?' ] = "\\?";/* ? */
        trt[ '[' ] = "\\[";/* [ */
        trt[ '\\' ] = "\\\\";/* \ */
        trt[ ']' ] = "\\]";/* ] */
        trt[ '^' ] = "\\^";/* ^ */
        trt[ '|' ] = "\\|";/* | */
        } // end  static init

    // instance init.
    {
    table = trt;
    }
    }