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+'\" p
+.TH SOELIM 1 "18 November 2018" "groff 1.22.4"
+.SH NAME
+soelim \- interpret .so requests in groff input
+.
+.
+.\" Save and disable compatibility mode (for, e.g., Solaris 10/11).
+.do nr soelim_C \n[.C]
+.cp 0
+.mso pic.tmac
+.
+.
+.\" ====================================================================
+.\" Legal Terms
+.\" ====================================================================
+.\"
+.\" Copyright (C) 1989-2018 Free Software Foundation, Inc.
+.\"
+.\" Permission is granted to make and distribute verbatim copies of this
+.\" manual provided the copyright notice and this permission notice are
+.\" preserved on all copies.
+.\"
+.\" Permission is granted to copy and distribute modified versions of
+.\" this manual under the conditions for verbatim copying, provided that
+.\" the entire resulting derived work is distributed under the terms of
+.\" a permission notice identical to this one.
+.\"
+.\" Permission is granted to copy and distribute translations of this
+.\" manual into another language, under the above conditions for
+.\" modified versions, except that this permission notice may be
+.\" included in translations approved by the Free Software Foundation
+.\" instead of in the original English.
+.
+.
+.\" ====================================================================
+.SH SYNOPSIS
+.\" ====================================================================
+.
+.SY soelim
+.OP \-Crtv
+.OP \-I dir
+.RI [ file
+\&.\|.\|.\&]
+.YS
+.
+.
+.\" ====================================================================
+.SH DESCRIPTION
+.\" ====================================================================
+.
+.B soelim
+reads
+.I files
+and replaces lines of the form
+.IP
+.BI .so\~ file
+.LP
+by the contents of
+.IR file .
+.
+It is useful if files included with
+.B .so
+need to be preprocessed.
+.
+Normally,
+.B soelim
+should be invoked with the
+.B \-s
+option of
+.BR groff .
+.
+.
+.PP
+To embed \[oq]\[rs]\[cq] in the file name, write \[oq]\[rs]\[rs]\[cq]
+or \[oq]\[rs]e\[cq].
+.
+To embed a space, write \[oq]\[rs]\ \[cq].
+.
+Any other escape sequence in
+.I file
+makes
+.B soelim
+ignore the whole line.
+.
+.
+.PP
+Note that there must be no whitespace between the leading dot and the two
+characters \[oq]s\[cq] and \[oq]o\[cq].
+.
+Otherwise, only
+.B groff
+interprets the
+.B .so
+request (and
+.B soelim
+ignores it).
+.
+.
+.\" ====================================================================
+.SH OPTIONS
+.\" ====================================================================
+.
+Whitespace is permitted between a command-line option and its argument.
+.
+.
+.TP
+.B \-C
+Recognize
+.B .so
+even when followed by a character other than space or newline.
+.
+.TP
+.BI \-I dir
+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
+.B .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
+.B \-I.\&
+at the appropriate place.
+.
+.IP
+No directory search is performed for files with an absolute file name.
+.
+.TP
+.B \-r
+Do not add
+.B .lf
+requests (for general use, with non-groff files).
+.
+.TP
+.B \-t
+Don't emit
+.B .lf
+requests but TeX comment lines (starting with \[oq]%\[cq]) giving the
+current file and line number.
+.
+.TP
+.B \-v
+Print the version number.
+.
+.
+.\" ====================================================================
+.SH USAGE
+.\" ====================================================================
+.
+The normal processing sequence of groff is this:
+.
+.
+.PP
+.ie t \{\
+.PS
+.ps 10
+.vs 12
+box invisible width 0.5 height 0.4 "input" "file";
+move to last box .bottom;
+down;
+arrow 0.3;
+box invisible width 0.8 height 0.2 "preprocessor";
+move to last box .right
+right;
+arrow 0.3;
+A: box invisible width 0.35 height 0.2 "troff";
+move to last box .top;
+up;
+move 0.3;
+box invisible width 0.6 height 0.4 "sourced" "file";
+line <- up 0.3 from A.top;
+move to A.right;
+right;
+arrow 0.3;
+box invisible width 0.85 height 0.2 "postprocessor";
+move to last box .bottom;
+down;
+arrow 0.3;
+box invisible width 0.5 height 0.4 "output" "file"
+.ps
+.vs
+.PE
+.\}
+.el \{\
+.nf
+ input sourced
+ file file
+ | |
+ v v
+ preprocessor -> troff -> postprocessor
+ |
+ v
+ output
+ file
+.fi
+.\}
+.PP
+.
+That is, files sourced with
+.B .so
+are normally read
+.I only
+by
+.B troff
+(the actual formatter).
+.
+.B soelim
+is
+.I not
+required for
+.B troff
+to source files.
+.
+.
+.PP
+If a file to be sourced should also be preprocessed, it must already be read
+.I before
+the input file passes through the preprocessor.
+.
+This is handled by
+.BR soelim :
+.
+.PP
+.ie t \{\
+.PS
+.ps 10
+.vs 12
+box invisible width 0.5 height 0.4 "input" "file";
+move to last box .bottom;
+down;
+arrow 0.3;
+A: box invisible width 0.5 height 0.2 "soelim";
+line <- 0.3;
+box invisible width 0.5 height 0.4 "sourced" "file";
+move to A.right;
+right;
+arrow 0.3;
+box invisible width 0.8 height 0.2 "preprocessor";
+arrow 0.3;
+box invisible width 0.35 height 0.2 "troff";
+arrow 0.3
+box invisible width 0.85 height 0.2 "postprocessor";
+move to last box .bottom;
+down;
+arrow 0.3;
+box invisible width 0.5 height 0.4 "output" "file"
+.ps
+.vs
+.PE
+.\}
+.el \{\
+.nf
+ input
+ file
+ |
+ v
+ soelim -> preprocessor -> troff -> postprocessor
+ ^ |
+ | v
+ sourced output
+ file file
+.fi
+.\}
+.
+.
+.\" ====================================================================
+.SH "SEE ALSO"
+.\" ====================================================================
+.BR groff (1)
+.
+.
+.\" Restore compatibility mode (for, e.g., Solaris 10/11).
+.cp \n[soelim_C]
+.
+.
+.\" Local Variables:
+.\" mode: nroff
+.\" End:
+.\" vim: set filetype=groff: