Postal code

Below is a validation for postal codes. For additional validation, please see Using regular expressions from the LimeSurvey Manual.

The following validation:

• Works for Canadian postal codes. For postal codes in other countries, please see the postcodes section from the LimeSurvey manual.
• Is case insensitive
• Works for the following formats:
  • A1B2C3 (no space)
  • a1B 2C3 (space)
  • a1b-2c3 (dash)

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Steps to add postal code validation:

Ensure the Question Type is Short free text.

1. Add a new question or edit an existing question
2. Under General options (right-hand side):
   1. Make sure Question type is Short free text
   2. Copy and paste the validation expression (below) into the Validation field 

Validation expression: /^[a-zA-Z]\d{1}[a-zA-Z](\-| |)\d{1}[a-zA-Z]\d{1}$/