REGEX EXAMPLES CODE

This matches a position, not a character.

Matches any position that is not a word boundary. Matches a word boundary position between a word character and non-word character or position (start / end of string) Matches the end of the string. This matches a position, not a character. Matches the beginning of the string. This matches a position, not a character.

REGEX EXAMPLES CODE

Matches a character having a character code between the two specified characters inclusive. Match any character that is not in the set. Matches any character that is not a whitespace character (spaces, tabs, line breaks). Matches any character that is not a word character (alphanumeric & underscore). Matches any character that is not a digit character (0-9). Only matches low-ascii characters (no accented or non-roman characters). Matches any word character (alphanumeric & underscore). Then add the message your users will see if the validation fails. Next, add the expression you want to validate against. To validate a field with a Regex pattern, click the Must match pattern check box. When you create a text question, along with word/character limits, you can validate for Regex pattern matching.

However, Regex has been in use for decades, and a vast library of open-source resources and pre-built patterns is available. Learning to use Regex can seem complicated, until you understand the basic syntax.

They can be used to validate text based on complex criteria, and match common text patterns like phone numbers and IP addresses. Regular expressions are flexible and powerful enough to match virtually any text based pattern you could want to include in a ProForma form. Regex's (also known as Regular Expressions) are sequences of characters that define a search pattern in text. ProForma Text Fields are able to perform validation on a huge variety of text patterns using Regex validation.

Regex examples