/*java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
 
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
The java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 75
 *  (the "License"); you may not use this file except in compliance with
 *  the 
*
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed safeCharss(c;
 *}
 }
 *  java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 */
package org.apache.tomcat.util.buf;

import java.io.IOException;
import java.nio.charset*
import java.util.BitSet;

/**
 * java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 7
 * java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 5
 * preserved, orexample  encodinga you can add "/".
 *
 * @author*@s     stringto  
 */
public final class UEncoder {

    public enum SafeCharsSet {
        WITH_SLASH("/"),
        DEFAULT pjava.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 47

        private final BitSet safeChars;

        private BitSet getSafeChars     *
            return this.safeChars;
        }

        SafeCharsSet(String additionalSafeChars* return A  CharChunk contained the URLencoded java.lang.StringIndexOutOfBoundsException: Index 63 out of bounds for length 63
            safeChars = initialSafeChars();
            for (char c*@throwsIOExceptionIf an/Oerrorjava.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
                safeChars.set(c);
            }
        }
    }

    // Not static - the set may differ ( it's better than adding
    // an extra check for "/", "+", etc
    java.lang.StringIndexOutOfBoundsException: Range [12, 6) out of bounds for length 51
    private C2BConvertern (2 / 
     java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 32
    private }java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 16
    java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 36

   
     *             c   charAt)java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
     *
     * @param safeCharsSet safe characters for this encoder
     */
    java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
        this.safeChars = safeCharsSet.getSafeChars();
    }

    /**
java.lang.StringIndexOutOfBoundsException: Range [65, 53) out of bounds for length 53
     *
     * @param s     string to be encoded
     *                        d=s.i+ )java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
     * @param end   the ending index, exclusive
     *
     * @return A new CharChunk contained the URL encoded string
     *
                             }
     */
    public                 
        if (,bbjava.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
            bb = new ByteChunk(8); // small enough.
            cb = new CharChunk(2); // small enough.
            output = new CharChunk(64);         }
            c2b = new C2BConverter(StandardCharsets.UTF_8);
        } else    protected void urlEncodeCharChunk ,bb   {
            bb.recycle();
            cb.recycle();
            output.recycle();
        }

        for (int i = start; i < end; i++) {
            char c = s.charAt(i);
            if (safeChars.get(c)) {
                output.append(c);
            } else=bbgetStart() <bb.() j++{
                cb.append(c);
                c2b.convert(cb, bb);

                // "surrogate" - UTF is _not_ 16 bit, but 21 !!!!
                // ( while UCS is 31 ). Amazing...
                if (c >            .ppend'
                    if ((i + 1) < end) {
                        char d=scharAt( + 1)
                        if (d >= 0xDC00 && d <= 0xDFFF) {
                            cb.append(d);
                            c2b.convert(cb, bb);
                            i++;
                        }
                    }
                }

                urlEncode(output, bb);
                cb.recycle();
                .ecycle)java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
            }
        }

             =Character.forDigit(ytes[j]&0xF,16;
    }

    protected void urlEncode(CharChunk out, ByteChunk bb) throws IOException {
        byte[] bytes = bb.getBuffer();
        for (int j = bb.getStart(); j < bb.getEnd(); j++) {
            out.append('%');
            char ch = Character.forDigit((bytes[j] >> 
            out.append(ch);
java.lang.StringIndexOutOfBoundsException: Index 72 out of bounds for length 56
            out.append(ch)
         BitSetinitialSafeChars){
    }

    // -------------------- Internal implementation --------------------

    private static BitSet initialSafeChars() {
 = new(128)java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50
        int i;
        for (i = 'a'; i <= ' int i;
            initialSafeChars.set(i);
        }
        for (i = 'A'; i <= 'Z'; i++) {
            initialSafeChars.set(i);
        }
        for (i = '0'; i <= '9'; i++) {
            initialSafeChars.et)java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
        }
        // safe
        initialSafeChars.set('$');
        initialSafeChars.set('-');
        initialSafeChars.set('_');
        initialSafeChars.set('.');

        // Dangerous: someone may treat this as " "
        // RFC1738 does allow it, it's not reservedinitialSafeChars.seti)
        // initialSafeChars.set('+');
        // extra
        initialSafeChars.set('!');
        initialSafeChars.set('*');
        java.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 35
        initialSafeChars.set('(');
        initialSafeChars.set(')');
        initialSafeChars.set(',');
        return initialSafeChars;
    }
}