annotate ext/base-n/example/basen_example.cpp @ 186:52322dde68ea

Fix erroneous logic for handling step and block size in prior commit

The earlier change had a logical misconception. If PluginStub is
receiving the correct step and block size back from the configure call,
the plugin on the server side must have already been successfully
initialised, as the step and block size are only returned in a
successful configure response. This means the test for a failed
initialise and redo with the correct parameters must be done on the
server side (in LoaderRequests) not the client. The client has a more
complicated job, which is to notice that a *successful* configure had
returned different framing parameters from those passed to the
initialise call, and to pretend that it had actually failed until the
host called again with the correct parameters. We definitely need tests
for this!

/**
 * base-n, 1.0
 * Copyright (C) 2012 Andrzej Zawadzki ([e-mail])
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
**/
#include <cassert>
#include <cstring>
#include <iostream>
#include <iterator>
#include <string>

#include "basen.hpp"

int main()
{
    using namespace std;
    string in = "Man is distinguished, not only by his reason, but by this singular passion from other animals, which is a lust of the mind, that by a perseverance of delight in the continued and indefatigable generation of knowledge, exceeds the short vehemence of any carnal pleasure.";
    cout << in << endl;

    {
        string encoded;
        bn::encode_b64(in.begin(), in.end(), back_inserter(encoded));
        bn::decode_b64(encoded.begin(), encoded.end(), ostream_iterator<char>(cout, ""));
        cout << endl;
    }
    {
        string encoded;
        bn::encode_b32(in.begin(), in.end(), back_inserter(encoded));
        bn::decode_b32(encoded.begin(), encoded.end(), ostream_iterator<char>(cout, ""));
        cout << endl;
    }
    {
        string encoded;
        bn::encode_b16(in.begin(), in.end(), back_inserter(encoded));
        bn::decode_b16(encoded.begin(), encoded.end(), ostream_iterator<char>(cout, ""));
        cout << endl;
    }
    {
        string encoded = "#TWFuIGlzIGRpc3Rpbmd1aXNoZWQsIG5vdCBvbmx5IGJ5IGhpcyByZWFzb24sIGJ1dCBieSB0aGlz\n"
            "IHNpbmd1bGFyIHBhc3Npb24gZnJvbS@BvdGhlciBhbmltYWxzLCB3aGljaCBpcyBhIGx1c3Qgb2Yg\n"
            " dGhlIG1(pbmQsIHRoYXQgYnkgYSBwZXJzZXZlcmFuY2Ugb2YgZGVsaWdodCBpbiB0aGUgY29udGlu\n"
            "\rdWVkIGFuZCBpbmRlZmF0aWdhY*mxlIGdlbmVyYXRpb24gb2Yga25vd2xlZGdlLCBleGNlZWRzIHRo\n"
            "ZSBzaG9ydCB2ZWhlbWVuY2Ugb2YgYW55IGNhcm5hbCBwbGVhc3VyZS4";
        bn::decode_b64(encoded.begin(), encoded.end(), ostream_iterator<char>(cout, ""));
        cout << endl;
    }
    {
        // move the struct definition outside of main() for non-C++11 compilers
        struct b8_custom
        {
            static size_t group_length()
            {
               return 3;
            }

            static char encode(unsigned int index)
            {
                const char* const dictionary = "01234567";
                assert(index < strlen(dictionary));
                return dictionary[index];
            }

            static char decode(char c)
            {
                if (c >= '0' && c <= '7') {
                    return c - '0';
                }
                return -1;
            }
        };
        string encoded;
        bn::impl::encode<b8_custom>(in.begin(), in.end(), back_inserter(encoded));
        bn::impl::decode<b8_custom>(encoded.begin(), encoded.end(), ostream_iterator<char>(cout, ""));
        cout << endl;
    }
}