Q:

Angular-Xeditable e-pattern not accepting valid regular expression

I am trying to validate the user input of a text field using e-pattern from the angular-xeditable directive. I have built the regular expression using an online regex builder/tester and it does exactly what I want however angular-xeditable doesn't seem to recognize the expression as being valid. It shows the below even when the expression is valid.
requirements: 

Value must be >= 0.0 or <= 1.0
Value can have one or two decimal places
First decimal place can be a digit between 0-9
Second decimal place should be either 0 or 5

valid entry: 0.5, 0.95, 0.40, 1.0
regex:
 ^((0+(\.[0-9][05]?))|1+(\.0))$

code: 
<span e-pattern="/^((0+(\.[0-9][05]?))|1+(\.0))$/"  e-required ng-show="!tableform.$visible"   editable-text="user.available" e-form="tableform" onbeforesave="checkAvailable($data)">{{ user.available}} </span>
message: 

Is there anything I'm missing or need to amend to the expression or span tag?

A:

Fail, I just figured out the issue it's incredibly simple e-pattern does not require /^ or $/ before or after the expression, should instead read:
 e-pattern="((0+(\.[0-9][05]?))|1+(\.0))"

