To add to AppleFritter’s excellent explanation:

The only reason split is giving you the contents of the separators is that you have capturing parentheses in your regex. From split:

If the PATTERN contains capturing groups, then for each separator, an additional field is produced for each substring captured by a group...

Hope that helps,

Athanasius <°(((>< contra mundum Iustus alius egestas vitae, eros Piratica,

In reply to Re: How to split a string based on character(s) length by Athanasius
in thread How to split a string based on the length of a sequence of characters within the string by thanos1983

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