Function xmlNewCharEncodingHandler

ThirdParty/libxml2/vtklibxml2/encoding.c:1346–1405

* xmlNewCharEncodingHandler: * @name: the encoding name, in UTF-8 format (ASCII actually) * @input: the xmlCharEncodingInputFunc to read that encoding * @output: the xmlCharEncodingOutputFunc to write that encoding * * Create and registers an xmlCharEncodingHandler. * * Returns the xmlCharEncodingHandlerPtr created (or NULL in case of error). */

 * Returns the xmlCharEncodingHandlerPtr created (or NULL in case of error).
 */
xmlCharEncodingHandlerPtr
xmlNewCharEncodingHandler(const char *name,
                          xmlCharEncodingInputFunc input,
                          xmlCharEncodingOutputFunc output) {
    xmlCharEncodingHandlerPtr handler;
    const char *alias;
    char upper[500];
    int i;
    char *up = NULL;

    /*
     * Do the alias resolution
     */
    alias = xmlGetEncodingAlias(name);
    if (alias != NULL)
	name = alias;

    /*
     * Keep only the uppercase version of the encoding.
     */
    if (name == NULL)
	return(NULL);
    for (i = 0;i < 499;i++) {
        upper[i] = (char) toupper((unsigned char) name[i]);
	if (upper[i] == 0) break;
    }
    upper[i] = 0;
    up = xmlMemStrdup(upper);
    if (up == NULL)
	return(NULL);

    /*
     * allocate and fill-up an handler block.
     */
    handler = (xmlCharEncodingHandlerPtr)
              xmlMalloc(sizeof(xmlCharEncodingHandler));
    if (handler == NULL) {
        xmlFree(up);
	return(NULL);
    }
    memset(handler, 0, sizeof(xmlCharEncodingHandler));
    handler->input = input;
    handler->output = output;
    handler->name = up;

#ifdef LIBXML_ICONV_ENABLED
    handler->iconv_in = NULL;
    handler->iconv_out = NULL;
#endif
#ifdef LIBXML_ICU_ENABLED
    handler->uconv_in = NULL;
    handler->uconv_out = NULL;
#endif

    /*
     * registers and returns the handler.
     */
    xmlRegisterCharEncodingHandler(handler);