1 files changed, 11 insertions, 0 deletions
diff --git a/app/util.lisp b/app/util.lisp
new file mode 100644
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+++ b/app/util.lisp
@@ -0,0 +1,11 @@
+;;;; utils.lisp
+
+(in-package :oneliners.cli.app)
+
+(defun parse-identifier (str)
+  "If STR holds digits representing an integer, parse them. otherwise
+  return the string.  Oneliner identifiers may be names or ID
+  numbers. Returns NIL in the case that STR is NIL"
+  (when str
+    (or (parse-integer str :junk-allowed t)
+        str)))