plain-ltx – Make plain TeX files LaTeXable
The package plain.sty defines a LaTeX environment which can process a document written to use Knuth's basic Plain TeX macros.
Inside the environment, not everything is as Knuth intended (some Plain commands are suppressed, some are faked, and some basic mechanisms—such as font selection and the output routine—remain as in LaTeX). Thus “simple” documents will run, but elaborate macros defined in the document have a chance of failing.
The LaTeX Project Public License
import files in a non-TeX (or different TeX) format
Maybe you are interested in the following packages as well.
- texvc: Use MediaWiki LaTeX commands
- typehtml: Typeset HTML directly from LaTeX
- delimtxt: Read and parse text tables
- passivetex: Support package for XML/SGML typesetting