To use sgmlspl, you need to install SGMLS.pm on your system, by copying the SGMLS.pm file to a directory searched by perl5. You also need to install SGMLS::Output in the same directory, and sgmlspl (with execute permission) somewhere on your PATH. The easiest way to do all of this on a Unix system is to change to the root directory of this distribution (SGMLSpm), edit the Makefile appropriately, and type
make installDavid Megginson <dmeggins@aix1.uottawa.ca>