diff --git a/lib/src/clixon_proto_client.c b/lib/src/clixon_proto_client.c
index 3674654e..30671817 100644
--- a/lib/src/clixon_proto_client.c
+++ b/lib/src/clixon_proto_client.c
@@ -262,7 +262,7 @@ clicon_rpc_generate_error(char  *prefix,
  *    cxobj *xt = NULL;
  *    if (clicon_rpc_get_config(h, "running", "/hello/world", "urn:example:hello", &xt) < 0)
  *       err;
- *   if ((xerr = xpath_first(xt,  "/rpc-error")) != NULL){
+ *   if ((xerr = xpath_first(xt, "/rpc-error")) != NULL){
  *	clicon_rpc_generate_error("", xerr);
  *      err;
  *  }
@@ -297,7 +297,7 @@ clicon_rpc_get_config(clicon_handle       h,
 	if (namespace)
 	    cprintf(cb, "<nc:filter nc:type=\"xpath\" nc:select=\"%s\" xmlns=\"%s\"/>",
 		    xpath, namespace);
-	else /* XXX shouldnt happen */
+	else /* If xpath != /, this will probably yield an error later */
 	    cprintf(cb, "<filter type=\"xpath\" select=\"%s\"/>", xpath);
     }
     cprintf(cb, "</get-config></rpc>");
@@ -584,7 +584,7 @@ clicon_rpc_get(clicon_handle       h,
 	if (namespace)
 	    cprintf(cb, "<nc:filter nc:type=\"xpath\" nc:select=\"%s\" xmlns=\"%s\"/>",
 		    xpath, namespace);
-	else /* XXX shouldnt happen */
+	else /* If xpath != /, this will probably yield an error later */
 	    cprintf(cb, "<filter type=\"xpath\" select=\"%s\"/>", xpath);
     }
     cprintf(cb, "</get></rpc>");
diff --git a/lib/src/clixon_xml_map.c b/lib/src/clixon_xml_map.c
index f54badf6..7f9c3a3a 100644
--- a/lib/src/clixon_xml_map.c
+++ b/lib/src/clixon_xml_map.c
@@ -2279,10 +2279,9 @@ xml_spec_populate(cxobj  *x,
     return retval;
 }
 
-/*! Translate from restconf api-path in cvv form to xml xpath
- * eg a/b=c -> a/[b=c] 
- * eg example:a/b -> ex:a/b
- * @param[in]     api_path api-path as cvec
+/*! Translate from restconf api-path(cvv) to xml xpath(cbuf) and namespace
+ * 
+ * @param[in]     api_path URI-encoded path expression" (RFC8040 3.5.3) as cvec
  * @param[in]     offset   Offset of cvec, where api-path starts
  * @param[in]     yspec    Yang spec
  * @param[in,out] xpath    The xpath as cbuf (must be created and may have content)
@@ -2303,18 +2302,15 @@ xml_spec_populate(cxobj  *x,
  *   cvec *cvv = NULL; 
  *   if (str2cvec("www.foo.com/restconf/a/b=c", '/', '=', &cvv) < 0)
  *      err;
- *   if ((ret = api_path2xpath(yspec, cvv, 0, cxpath, NULL)) < 0)
+ *   if ((ret = api_path2xpath_cvv(yspec, cvv, 0, cxpath, NULL)) < 0)
  *      err;
- *   if (ret == 0){
- *      ... access error string in clicon_err_reason
- *      clicon_err_reset();
- *      return;
- *   }
- *   ... access xpath as cbuf_get(xpath) 
+ *   if (ret == 1)
+ *     ... access xpath as cbuf_get(xpath) 
  *   cbuf_free(xpath)
  * @endcode
  * @note "api-path" is "URI-encoded path expression" definition in RFC8040 3.5.3
  * @see api_path2xml  For api-path to xml tree
+ * @see api_path2xpath  Using strings as parameters
  */
 int
 api_path2xpath_cvv(cvec       *api_path,
@@ -2408,10 +2404,24 @@ api_path2xpath_cvv(cvec       *api_path,
     goto done;
 }
 
-/*! Translate from restconf api-path to xml xpath as cbuf and yang module
- * @retval     1      OK
- * @retval     0      Invalid api_path or associated XML, clicon_err called
- * @retval    -1      Fatal error, clicon_err called
+/*! Translate from restconf api-path to xml xpath and namespace
+ * @param[in]  api_path  URI-encoded path expression" (RFC8040 3.5.3)
+ * @param[in]  yspec     Yang spec
+ * @param[out] xpath     xpath (use free() to deallocate)
+ * @param[out] namespace Namespace of xpath (direct pointer don't free)
+ * @retval     1         OK
+ * @retval     0         Invalid api_path or associated XML, clicon_err called
+ * @retval    -1         Fatal error, clicon_err called
+ * @code
+ *   char *xpath = NULL;
+ *   if ((ret = api_path2xpath("/module:a/b", yspec, &xpath, &namespace)) < 0)
+ *      err;
+ *   if (ret == 1)
+ *      ... access xpath as cbuf_get(xpath) 
+ *   free(xpath)
+ * @endcode
+
+ * @see api_path2xml_cvv  which uses other parameter formats
  */
 int
 api_path2xpath(char       *api_path,
diff --git a/lib/src/clixon_xpath_eval.c b/lib/src/clixon_xpath_eval.c
index 41bdf200..a7b780af 100644
--- a/lib/src/clixon_xpath_eval.c
+++ b/lib/src/clixon_xpath_eval.c
@@ -159,13 +159,15 @@ nodetest_eval_node(cxobj      *x,
 	else
 	    retval = strcmp(prefix1, prefix2) == 0;
     }
+#if 0 /* debugging */
     /* If retval == 0 here, then there is name match, but not ns match */
     if (retval == 0){
 	fprintf(stderr, "%s NOMATCH xml: (%s)%s\n\t\t xpath: (%s)%s\n", __FUNCTION__,
 		name1, nsxml,
 		name2, nsxpath);
     }
-    done:	
+#endif
+ done:	/* retval set in preceeding statement */
     return retval;
 }