make_embed_params_tag_params.php

<?php 

make_embed_params_tag_params()
{
    // the valid params for the tag
    $valid_params = array(
        'entry_id',
        'weblog_id',
        'url_title'
   );

    // for each of the embedded params
    foreach ($TMPL->embed_vars as $key => $value)
    {
        // parse the param key
        // embed: ... 
        $param_key = substr($key, 6);
        if(
            // is the tag param actually set?
            isset($TMPL->tagparams[$param_key]) === FALSE
            // is the embbed param in the valid params array?
            && in_array($param_key, $valid_params)
        )
        {
            // add the embed param to the tag param
            $TMPL->tagparams[$real_key] = $value;
        }
    }
}