Regular Expression - Match content contained within nth and nth + 1 occurence of specified character pattern.
This regular expression is designed to work with character-delimited strings, and provides a means to specify the index of delimiter occurrence at which content is extracted.
CHARACTER_PATTERN- Delimiter character pattern to search for within target string.INDEX- Zero-based index specifying the nth occurrence ofCHARACTER_PATTERNat which content is to be extracted, up to nth + 1 occurrence.