# PICK\_OR\_DEFAULT

### Description

`PICK_OR_DEFAULT` takes an input value, a list of allowed values, and a default value. If the input matches one of the allowed values (case-insensitive, whitespace-normalised), it returns the matched value from the list. Otherwise, it returns the default.

This is useful for normalising free-text input against a known set of options.

### Example

```
p is Person
PICK_OR_DEFAULT(p.salutation, ['Mr', 'Ms', 'Mx'], 'Mx')
```

If `p.salutation` is `"mr"`, `"MR"`, `"Mr"`, or `"mR"`, this returns `"Mr"`. If it does not match any option, it returns `"Mx"`.


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