1 files changed, 30 insertions, 0 deletions
diff --git a/StarsEx/ParseUtil.inl.h b/StarsEx/ParseUtil.inl.h
new file mode 100644
index 0000000..f59489b
--- /dev/null
+++ b/StarsEx/ParseUtil.inl.h
@@ -0,0 +1,30 @@
+/*  Starshatter: The Open Source Project
+    Copyright (c) 2021-2024, Starshatter: The Open Source Project Contributors
+    Copyright (c) 2011-2012, Starshatter OpenSource Distribution Contributors
+    Copyright (c) 1997-2006, Destroyer Studios LLC.
+*/
+
+#include <type_traits>
+
+#include <starshatter/definition.h>
+#include <Utils.h>
+
+
+template <typename Number>
+bool
+GetDefNumber(Number& dst, TermDef* def, const char* file)
+{
+    static_assert(std::is_convertible<long double, Number>::value);
+    if (!def || !def->term()) {
+        Print("WARNING: missing NUMBER TermDef in '%s'\n", file);
+        return false;
+    }
+    TermNumber* tr = def->term()->isNumber();
+    if (tr) {
+        dst = static_cast<Number>(tr->value());
+        return true;
+    }
+    else
+        Print("WARNING: invalid NUMBER %s in '%s'\n", def->name()->value().data(), file);
+    return false;
+}