oficonv: a character set conversion library

This module contains the Citrus iconv implementation in a modified version adapted for use in DCMTK and with the character set encodings used in the DICOM standard.

The most important functions are:

• OFiconv_open()
• OFiconv()
• OFiconv_close()

Examples

The following example shows a very simple character set conversion. Most error handling code has been omitted for brevity.

// we want to convert from ISO 8859-1 to UTF-8
iconv_t id = OFiconv_open("UTF-8", "ISO-8859-1");
if (id != OFreinterpret_cast(iconv_t, -1))
{
    // set up input and output buffer
    char output[20];
    char input[20];
    strcpy(input, "J\xF6rg");
 
    // set up the parameters for OFiconv
    char *src_ptr = input; // Following the Posix spec, this pointer is not const
    size_t src_len = std::strlen(src_ptr);
    char *dst_ptr = output;
    size_t dst_len = 20;
 
    // perform the conversion
    size_t result = OFiconv(id, &src_ptr, &src_len, &dst_ptr, &dst_len);
    if (result != OFstatic_cast(size_t, -1))
    {
        std::cout << "UTF-8 string: " << output << std::endl;
    }
 
    // close the conversion descriptor
    OFiconv_close(id);
}