3.38.1. Introduction to regular expressions and matching
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### 3.38.1. Introduction to regular expressions and matching

- For many search and selection actions, you can use regular expressions (using the matches operator) or simple matching (using the simple match operator) to avoid having to enter strings as exactly as they appear in the user interface.

- Using regular expressions lets you verify or select text even if you do not know exactly what the text is.

- Using a system of placeholders for characters and some function symbols, you can enter a regular expression to find or check a text.

- Actions which support regular expressions have an additional parameter, ”Operator”.