SylFilter

#include <glib.h>

#include "filter.h"

#include "ngram-filter.h"

static char *do_ngram(const char *content)

{

        return g_strdup(content);

}

static XFilterStatus xfilter_ngram_func(XFilter *filter, const XMessageData *data, XMessageData **result)

{

        const char *mime_type;

        const char *content = NULL;

        char *processed_content;

        *result = NULL;

        mime_type = xfilter_message_data_get_mime_type(data);

        if (!mime_type)

                return XF_UNSUPPORTED_TYPE;

        if (!g_strncasecmp(mime_type, "text/", 5))

                content = xfilter_message_data_get_content(data);

        else

                return XF_UNSUPPORTED_TYPE;

        processed_content = do_ngram(content);

        *result = xfilter_message_data_new(NULL, mime_type);

        xfilter_message_data_set_content(*result, processed_content);

        return XF_REWRITTEN;

}

XFilter *xfilter_ngram_new(void)

{

        XFilter *filter;

        filter = xfilter_new(XF_CONTENT, "ngram");

        xfilter_set_content_filter_func(X_CONTENT_FILTER(filter),

                                        xfilter_ngram_func);

        return filter;

}