Help to Create Regular Expression
In Extjs textField, I want to use maskRe, so I need Regular Expression.

Scenario : 
 - I want textField which allows only number
 - some special character
 - 1-2  (range) || >2 || <2 || =2 || 1.2 || 2+ || 2
   (only one at the time)
 - dont want to allow 1>1>1>1 || 1.2.2.3. 

Please help me to create this RE.
Thanks in advance.
Help to Create Regular Expression
===

In Extjs textField, I want to use maskRe, so I need Regular Expression.

Scenario : 
 - I want textField which allows only number
 - some special character
 - 1-2  (range) || >2 || <2 || =2 || 1.2 || 2+ || 2
   (only one at the time)
 - dont want to allow 1>1>1>1 || 1.2.2.3. 

Please help me to create this RE.
Thanks in advance.