texlive-latex-l3packages 51265 High-level LaTeX3 concepts
This bundle holds prototype implementations of concepts for a LaTeX designer interface, to be used with the experimental LaTeX kernel as programming tools and kernel support. Packages provided in this release are:
l3keys2e, which makes the facilities of the kernel module l3keys available for use by LaTeX 2e packages;
xfrac, which provides flexible splitlevel fractions;
xparse, which provides a high-level interface for declaring document commands; and
xtemplate, which provides a means of defining generic functions using a key-value syntax.