NMEPluginRot13.c

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/* License: new BSD license (see NME.h) */

#include "NMEPluginRot13.h"

NMEErr NMEPluginRot13(NMEConstText name, NMEInt nameLen,
        NMEConstText data, NMEInt dataLen,
        NMEContext *context,
        void *userData)
{
    NMEInt i;
    NMEChar c;
    (void)name;
    (void)nameLen;
    (void)userData;
    
    for (i = 0; i < dataLen; i++)
    {
        c = (data[i] | 32) >= 'a' && (data[i] | 32) <= 'm'
                ? data[i] + 13
                : (data[i] | 32) >= 'n' && (data[i] | 32) <= 'z'
                ? data[i] - 13
                : data[i];
        if (!NMEAddString(&c, 1, '\0', context))
            return kNMEErrNotEnoughMemory;
    }
    
    return kNMEErrOk;
}