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+
+This package contains two 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.
+
+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
+ifis-macros-doc.pdf -- instructions
+ifis-macros-doc.tex -- the source of ifis-macros-doc.pdf
+README -- this file
+
+Copyright (C) 2024 Udo Wermuth (author)
+ u dot wermuth (at) icloud dot com