Directory macros/latex2e/contrib/etl

# etl – expandable token list operations

Version 2021-11-07 v0.3

Released under the LaTeX Project Public License v1.3c or later See http://www.latex-project.org/lppl.txt

Hosted at https://github.com/Skillmon/ltxetl

Copyright (C) 2020-2021 Jonathan P. Spratte

This work may be distributed and/or modified under the conditions of the LaTeX Project Public License (LPPL), either version 1.3c of this license or (at your option) any later version. The latest version of this license is in the file:

http://www.latex-project.org/lppl.txt

This work is "maintained" (as per LPPL maintenance status) by Jonathan P. Spratte.

This provides expandable token list operations which are only implemented unexpandably inside of expl3's l3tl module. While being expandable these operations are typically slower than the unexpandable alternatives. Also there are tokens which are not expandably distinguishable in TeX (those are active characters which are let to the same character with a different category code).

Additionally a general map to token lists is provided modelled after \__tl_act:NNNn with additional features.