--- a/src/Pure/Thy/bibtex.ML Tue Jul 25 15:04:17 2023 +0200
+++ b/src/Pure/Thy/bibtex.ML Tue Jul 25 15:52:32 2023 +0200
@@ -49,7 +49,7 @@
fun decode yxml =
let
val props = XML.Decode.properties (YXML.parse_body yxml);
- val name = the_default "" (Properties.get props Markup.nameN);
+ val name = Properties.get_string props Markup.nameN;
val pos = Position.of_properties props;
in (name, pos) end;
in
--- a/src/Pure/more_thm.ML Tue Jul 25 15:04:17 2023 +0200
+++ b/src/Pure/more_thm.ML Tue Jul 25 15:52:32 2023 +0200
@@ -615,7 +615,7 @@
val theoremK = "theorem";
-fun legacy_get_kind thm = the_default "" (Properties.get (Thm.get_tags thm) Markup.kindN);
+fun legacy_get_kind thm = Properties.get_string (Thm.get_tags thm) Markup.kindN;
fun kind_rule k = tag_rule (Markup.kindN, k) o untag_rule Markup.kindN;