Fix unit test failure in math.parser

2009-04-13 20:25:55 -05:00 · 2009-04-13 20:25:55 -05:00 · cb6f59ff5b
parent f1038cee97
commit cb6f59ff5b
1 changed files with 3 additions and 1 deletions
--- a/core/math/parser/parser.factor
+++ b/core/math/parser/parser.factor
@ -50,7 +50,9 @@ SYMBOL: radix
 SYMBOL: negative?

 : string>natural ( seq radix -- n/f )
-    [ [ digit> ] dip (digits>integer) ] each-digit ; inline
+    over empty? [ 2drop f ] [
+        [ [ digit> ] dip (digits>integer) ] each-digit
+    ] if ; inline

 : sign ( -- str ) negative? get "-" "+" ? ;