Xstring – String manipulation for (La)TeX

The package provides macros for manipulating strings – testing a string’s contents, extracting substrings, substitution of substrings and providing numbers such as string length, position of, or number of recurrences of, a substring.

The package works equally in Plain TeX and LaTeX (though ε-TeX is always required). The strings to be processed may contain (expandable) macros.

Sources	/macros/generic/xstring
Documentation	README Package documentation (English) Package documentation (French)
Version	1.86
Licenses	The LaTeX Project Public License 1.3c
Copyright	2008–2023 Christian Tellechea
Maintainer	Christian Tellechea
Contained in	TeX Live as xstring MiKTeX as xstring
Topics	Tagged PDF – fully compatible String

Download the contents of this package in one zip archive (654.9k).