Regex Slot Filler

Description

Use this Node to fill Slots using regular expressions. To learn more about Slots and Tags, see Lexicons & Slots.

Parameter	Type	Description
Regex	Regular expression	The regular expression applied to the user input. The regular expression must start and end with /, for example, `/^1\d{7}$/`. Compared to regular expressions in Slot Fillers on the NLU tab, the Regex Slot Filler Node also supports flags.
Flags	Regular expression flag characters in single string	Regular expression flags you want to set. When the `g` flag is used, for example, `/^1\d{7}$/g`, and the input contains multiple matches, all matched values are stored as an array. The array is stored under the `slots` key in the Input object.
Tag	CognigyScript	The Tag or Slot you want to fill.

Last modified on September 18, 2026