<?php
/** provide default implementation of [wpml-string] shortcode for when
 * wpml plugin is not active.
 */

if (!isset($wpml_string_sub_active)) {

    add_action('init', 'stub_wpml_add_shortcode', 100);
    
    $wpml_string_sub_active = true;
    
    function stub_wpml_add_shortcode() {
        global $WPML_String_Translation;
        
        if (!isset($WPML_String_Translation)) {
            // WPML string translation is not active
            // Add our own do nothing shortcode
            
            add_shortcode('wpml-string', 'stub_wpml_string_shortcode');
            
        }
        
    }
    
    function stub_wpml_string_shortcode($atts, $value) {
        // return un-processed.
        return do_shortcode($value);
    }
}