soelim - interpret .so requests in groff input


   soelim [-Crtv] [-I dir] [files ...]

   It  is  possible  to have whitespace between the -I command line option
   and its parameter.


   soelim reads files and replaces lines of the form

          .so file

   by the contents of file.  It is useful if files included with .so  need
   to  be  preprocessed.   Normally,  soelim should be invoked with the -s
   option of groff.

   To embed '\' in the file name, write '\\' or '\e'.  To embed  a  space,
   write  '\ '.  Any other escape sequence in file makes soelim ignore the
   whole line.

   Note that there must be no whitespace between the leading dot  and  the
   two  characters  's' and 'o'.  Otherwise, only groff interprets the .so
   request (and soelim ignores it).


   -C     Recognize .so even when followed by a character other than space
          or newline.

   -Idir  This  option  may  be used to add a directory to the search path
          for files (both those on the command line and those named in .so
          requests).   The  search  path  is  initialized with the current
          directory.  This option may be specified  more  than  once;  the
          directories are then searched in the order specified (but before
          the current  directory).   If  you  want  to  make  the  current
          directory  be  read  before  other  directories,  add -I. at the
          appropriate place.

          No directory search is performed for files with an absolute file

   -r     Do not add .lf requests (for general use, with non-groff files).

   -t     Don't  emit  .lf  requests  but TeX comment lines (starting with
          '%') giving the current file and line number.

   -v     Print the version number.


   The normal processing sequence of groff is this:

             input        sourced
             file          file
               |             |
               v             v
           preprocessor -> troff -> postprocessor

   That is, files sourced with .so are normally read only  by  troff  (the
   actual formatter).  soelim is not required for troff to source files.

   If a file to be sourced should also be preprocessed, it must already be
   read before the input file passes through the  preprocessor.   This  is
   handled by soelim:

             soelim -> preprocessor -> troff -> postprocessor
               ^                                     |
               |                                     v
            sourced                               output
             file                                  file




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