is alphanumeric

This block is part of the condition group and was last modified in core v14.0.3.

is alphanumeric condition v12.0.1 Updated v14.0.3

Validates that a value contains only alphanumeric characters, underscores, spaces, and asterisks

In pins 2

value required
value
The value to be checked for special characters
disallow space v14.0.3
condition
Do not accept spaces
Default false

Out pins 1

Valid
condition
Returns true if the value contains no special characters (only letters, numbers, underscores, spaces, and asterisks)

Outputs valid=true when every character of value is an ASCII letter, digit, underscore, or asterisk - plus space unless disallow_space is true. Underscore IS allowed despite the label; accented letters and all other punctuation yield false. An empty or missing value has no offending characters and is true.

special characters

A typical wiring for is alphanumeric: substring feeds the value pin; the valid out pin feeds AND.

Commonly used with

In production blueprints, this block is most often wired together with:

AND: this block feeds into it. operator for a set of boolean operands will be true if and only if all the operands are true.
substring: feeds into this block.

Version history

Introduced in v12.0.1.

Last modified in v14.0.3.

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