patchcmd 2016/06/03 1.05 The package provides a command \patchcommand that can be used to add material at the beginning and/or the end of the replacement text of an existing macro. It works for macros with any number of normal arguments, including those that were defined with \DeclareRobustCommand. Following Michael's death, his family have requested that his TeX related files are made publicly available under the LPPL license. The patchcmd package is available under the LaTeX Project Public License version 1 or (at your option) any later version. https://latex-project.org/lppl/ (LPPL maintenance status: unmaintained)
Download the contents of this package in one zip archive (134.8k).