From: Simon Forman <sforman@hushmail.com>
Date: Tue, 19 May 2020 03:45:04 +0000 (-0700)
Subject: Zero-or-one not one-or-more.
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=605891d6d8ee637272826255bb88370ee9edba32;p=joypy%2FThun.git

Zero-or-one not one-or-more.
---

diff --git a/joy/parser.py b/joy/parser.py
index 6d3a379..de8a873 100644
--- a/joy/parser.py
+++ b/joy/parser.py
@@ -41,7 +41,7 @@ from .utils.stack import list_to_stack
 
 
 #TODO: explain the details of float lits and strings.
-FLOAT = r'-?\d+\.\d*(e(-|\+)\d+)+'
+FLOAT = r'-?\d+\.\d*(e(-|\+)\d+)?'
 INT = r'-?\d+'
 SYMBOL = r'[•\w!@$%^&*()_+<>?|\/;:`~,.=-]+'
 BRACKETS = r'\[|\]'