This topic contains packages with macros that are independent of the (TeX) format in use.
Generic handling of TeX category codes.
Draw molecules with easy syntax.
Luatexja-jfm files for Chinese typesetting.
Define expandable key=val macros using expkv.
Simple floating point arithmetic.
A collection of logos with bookmark support.
Am I running under pdfTeX, XeTeX or LuaTeX?.
Simple language-dependent settings based on language codes.
Macros for localizing TeX register allocations.
Typeset Japanese with Lua(La)TeX.
Visual debugging with LuaLaTeX.
TeX definitions with named parameters.
LuaTeX support for pdfTeX utility functions.
A minimal method for making generic packages.
A parser for polynomial expressions.
Print topical diagrams.
Hyphenation for letterspacing, underlining, and more.
Build tools to process tokens from an input stream.
“Aligned” math environments with arrows for comments.