Extended filecontents and filecontents* environments
Description
LaTeX2e's filecontents and filecontents* environments enable a
LaTeX source file to generate external files as it runs through
LaTeX. However, there are two limitations of these
environments: they refuse to overwrite existing files, and they
can only be used in the preamble of a document. The
filecontents package removes these limitations, letting you
overwrite existing files and letting you use
filecontents/filecontents* anywhere. As of September 2019 the
author tells us: "This package is no longer necessary due to
its functionality having moved into recent LaTeX kernels. It's
probably better not to move the package to obsolete because
users may need it to rebuild old documents. Version 1.5
provides full functionality when run with an older kernel but
issues a warning message and disables itself when run with a
newer kernel."
