From f702ca93fe16f27190163641c88afc696709c9aa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20Bl=C3=A4ul?= <blaeul@quodata.de>
Date: Sun, 18 Feb 2018 19:00:24 +0100
Subject: [PATCH] Float regex: Don't allow double dot; do allow 'e' for
 exponentials

---
 extensions/DatatypeTrait.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/extensions/DatatypeTrait.php b/extensions/DatatypeTrait.php
index 6a242b1..7d5359f 100644
--- a/extensions/DatatypeTrait.php
+++ b/extensions/DatatypeTrait.php
@@ -36,7 +36,7 @@ trait DatatypeTrait {
             return 'integer';
         }
 
-        if (preg_match('/^[+-]?([0-9]*[.])?([0-9]|[.][0-9])+$/', $value)) {
+        if (preg_match('/(^[+-]?$)|(^[+-]?[0-9]+([,.][0-9])?[0-9]*(e[+-]?[0-9]+)?$)/', $value)) {
             return 'float';
         }