Re-Encode a String (Hex, Base64, URL, etc)

Demonstrates how to convert from one encoding to another. For example: base64 to hex, URL to base64, base64 to quoted-printable, etc.

Note: The ReEncode method is unreleased at the time of this writing (08-April-2008) The next major Chilkat Crypt2 release after this date will include the ReEncode method.

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#include <CkCrypt2.h>

void ChilkatSample(void)
    {

    CkCrypt2 crypt;

    //  Any string argument automatically begins the 30-day trial.
    bool success;
    success = crypt.UnlockComponent("30-day trial");
    if (success != true) {
        printf("Crypt component unlock failed\n");
        return;
    }

    const char * hexStr;
    hexStr = "41424344E0E1E2E3";

    const char * fromEncoding;
    fromEncoding = "hex";
    const char * toEncoding;
    toEncoding = "base64";

    //  Convert from hex to base64
    const char * base64;
    base64 = crypt.reEncode(hexStr,fromEncoding,toEncoding);
    printf("%s\n",base64);

    //  Now convert from base64 to quoted-printable:
    fromEncoding = "base64";
    toEncoding = "quoted-printable";
    const char * qp;
    qp = crypt.reEncode(base64,fromEncoding,toEncoding);
    printf("%s\n",qp);

    //  Now convert from quoted-printable to URL:
    fromEncoding = "quoted-printable";
    toEncoding = "url";
    const char * urlEnc;
    urlEnc = crypt.reEncode(qp,fromEncoding,toEncoding);
    printf("%s\n",urlEnc);

    //  Now convert from URL back to hex:
    fromEncoding = "url";
    toEncoding = "hex";
    hexStr = crypt.reEncode(urlEnc,fromEncoding,toEncoding);
    printf("%s\n",hexStr);

    //  The output of this program is:
    //  QUJDRODh4uM=
    //  ABCD=E0=E1=E2=E3
    //  ABCD%E0%E1%E2%E3
    //  41424344E0E1E2E3

    }