checknr [options] [files]Solaris only. Check nroff/troff source files for mismatched delimiters and unknown commands. It also checks for macros that come in open/close pairs, such as .TS and .TE. With no files, checks the standard input.
checknr works best when input is designed for its conventions: \fP always ends a font change, and \s0 always restores a point-size change. checknr knows about the me and ms macros.
-amacrosAdd new pairs of macros that come in open/close pairs. The six characters representing the new macros must immediately follow the -a, e.g., -a.PS.PE for the pic macros.
-ccommandsDon't complain that the given commands are undefined. String the command names together, as in -a. Useful if you have your own macro package.
-fIgnore inline font changes (\f).
-sIgnore inline point-size changes (\s).