This package contains four files with macros. The first contains a
macro to test an input string if it represents a valid number for
TeX. The second checks if an input string is a valid dimension for
TeX. The third checks if an input string is a valid glue or muglue
specification for TeX. The fourth implements macros to compare the
corresponding components of two glue or muglue specifications.

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, version 3 of the License.

The package consists of the following files:

ifisinteger.tex     -- 1st macro file
ifisdimension.tex   -- 2nd macro file
ifisglue.tex        -- 3rd macro file (added in version 2.0)
gluecomp.tex        -- 4th macro file (added in version 2.0)
ifis-macros-doc.pdf -- instructions
ifis-macros-doc.tex -- the source of ifis-macros-doc.pdf
README              -- this file

Copyright (C) 2024,2025 Udo Wermuth (author)
                   u dot wermuth (at) icloud dot com