Java HTML Decode htmlEntityDecodeSingle(String s)

Description

html Entity Decode Single

License

Apache License

Declaration

public static String htmlEntityDecodeSingle(String s) 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Copyright 2012 Jack Wang// w  w  w . j  a  va2  s  .  co m
 * 
 * Licensed 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
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS 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.
 ******************************************************************************/

public class Main {
    public static String htmlEntityDecodeSingle(String s) {

        int i = 0, j = 0, pos = 0;
        StringBuffer sb = new StringBuffer();
        while ((i = s.indexOf("&#", pos)) != -1 && (j = s.indexOf(';', i)) != -1) {
            int n = -1;
            for (i += 2; i < j; ++i) {
                char c = s.charAt(i);
                if ('0' <= c && c <= '9')
                    n = (n == -1 ? 0 : n * 10) + c - '0';
                else
                    break;
            }
            if (i != j)
                n = -1; // malformed entity - abort
            if (n != -1) {
                sb.append((char) n);
                i = j + 1; // skip ';'
            } else {
                for (int k = pos; k < i; ++k)
                    sb.append(s.charAt(k));
            }
            pos = i;
        }
        if (sb.length() == 0)
            return s;
        else
            sb.append(s.substring(pos, s.length()));
        return sb.toString();

    }

    public String toString(long v) {
        /*
        if (v == 0) {
           return "-
        }
        else {
           if (t < 0) {
           rv[i++] = '-';
           t = std::abs(t);
           }
           for (T b ; t ; t = b) {
           b = t/10;
           T c = t%10;
           rv[i++] = static_cast<char>('0' + c);
           }
        }
        */
        return null;

    }
}

Related

1. HTMLDecode(String s)
2. htmlDecode(String s)
3. htmlDecode(String strSrc)
4. htmlDecoder(String content)
5. htmlEntityDecode(String s)
6. toHtmlString(String src, boolean noSingleQuotes)