> For the complete documentation index, see [llms.txt](https://docs.helmut.de/helmut4-releases/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.helmut.de/helmut4-releases/v4.7.2/helmut4-components/streamdesigner/nodes/conditions/misc-5/regex-match-condition.md).

# Regex Match Condition

With the help of the Regex Match Condition it is possible to match one or more source files against a REGEX. This makes it easy to filter out files in a pre-stream, for example, that contain characters that are not allowed.
