Fix bug in font size retrieval (cf. print#34)

modules/fontane/teisimpleprint/teisimplehelpers.xqm

@@ -197,8 +197,12 @@ as xs:boolean {
  : :)
 declare function simpleHelpers:get-font-size($node as node()) as xs:string {
     (: example for style: "font-size:large; letter-spacing:0.2cm; text-decoration:underline" :)
-    let $tmp := substring-after($node/descendant-or-self::tei:seg[matches(@style, "font-size")]/@style, "font-size:")
-    return substring-before($tmp, ";")
+    let $tmp := substring-after($node/descendant-or-self::tei:seg[matches(@style, "font-size") and not(ancestor::tei:add[@place = "above"])]/@style, "font-size:")
+    return 
+        if(matches($tmp, ";")) then
+            substring-before($tmp, ";")
+        else
+            $tmp
 };