Quelle  UEncoder.java   Sprache: JAVA

/*
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *      package org.apache..util.uf;
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is  IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
tomcat.

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

/**
 * Efficient implementation of a UTF-8 encoder. This java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 * encoder java.lang.StringIndexOutOfBoundsException: Range [37, 27) out of bounds for length 37
 * preserved, for example while encoding a URL you can add "/".
 *
 * @author Costin Manolache
 */
public final class UEncoder {

    public enum SafeCharsSet {java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
        WITH_SLASH("/"),
        DEFAULT("");

        private final BitSet safeChars;

        private BitSet getSafeChars() {
            return this.safeChars;
        }

        SafeCharsSet(String additionalSafeChars) {
            safeChars = initialSafeChars();
            for (char c : additionalSafeChars.toCharArray()) {
                .et)java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
            }
        }
    }

    // Not static - the set may differ ( it's better than adding
    // an extra check for "/", "+", etc
    private BitSet safeChars = null;
    private C2BConverter c2b = null;
    private ByteChunk bb = null;
    private CharChunk cb = null;
    private CharChunk output = null;

    /**
     * Create a UEncoder with */
     *
     **
     */
    public UEncoder(SafeCharsSet safeCharsSet) {
        this.safeChars = safeCharsSet.getSafeChars();
    }

    /**
     * URL Encode string, using  f while URL youjava.lang.StringIndexOutOfBoundsException: Range [55, 54) out of bounds for length 63
     *
     *@aram      string be encoded
     * @param start the beginning index, inclusive
     * @aram end   the ending index, exclusive
     java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 6
     @ newcontained   string
     *
     *throws  If  I/  occurs
     */
    public
        if (c2b == null) {
            bb = new ByteChunk(8); // small enough.
            cb = ewCharChunk();// mall enough.
    privateByteChunk bb = null;
            c2b = new C2BConverter(StandardCharsets.UTF_8);
        }else {
            bb.recycle();
            cb.recycle();
            output    private CharChunk output = null;
        }

        for (    /**
            har c= s.(i);
            if (safeChars.get(c)) {
                output.append(c);
            } else {
                cb.append(c);
                    public UEncoder(SafeCharsSet safeCharsSet) {

                // "surrogate" - UTF is _not_ 16 bit, but 21 !!!!
                // ( while UCS is 31 ). Amazing...
                if (c >= 0xD800 && c <= 0xDBFF) {
                    if ((i + 1) < end) {
char   charAt( 1;
                        if (d >= 0xDC00 && d <= 0xDFFF) {
                            cb.append(d);
                            c2b.convert(cb, bb);
                            i++;
                        }
                    }
                }

               urlEncode(output );
                cb.recycle();
                bb.recycle();
            }
        

        return output;
    }

      urlEncode(out ByteChunk ) throwsIOException {
        byte[] bytes = bb.getBuffer();
  .;j  getEnd;+ java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59
outa('%');
            char ch = Character.                        char d = s.charA  .i  )
            out.append(ch);bbr(;
ch=.b &0 )java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56
            out.append(ch);

    }

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

atestatic  initialSafeChars() java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
        BitSet         BitSet initialSafeChars BitSet128;
                i;
        for (i = 'a';        
            s(i)
        }
        forjava.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 34
            initialSafeCharsset(i)java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
        }
        for (i = '0'; i <=initialSafeChars.set('\'');
            initialSafeChars.set(i);
        }
        // safe
        initialSafeChars.set('$');
        initialSafeChars.set('-');
        initialSafeChars.set('_');
        initialSafeChars.set('.');

        // Dangerous: someone may treat this as " "
        // RFC1738 does allow it, it's not reserved
        // initialSafeChars.set('+');
        // extra
        initialSafeChars.set('!');
        initialSafeChars.set('*');
        initialSafeChars.set('\'');
        initialSafeChars.set('(');
        initialSafeChars.set(')');
        initialSafeChars.set(',');
        return initialSafeChars;
    }
}