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Work on file usr/man/man1/deroff.1

Synthesized-from: v7

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+.TH DEROFF 1 
+.SH NAME
+deroff \- remove nroff, troff, tbl and eqn constructs
+.SH SYNOPSIS
+.B deroff
+[
+.B \-w
+]
+file ...
+.SH DESCRIPTION
+.I Deroff
+reads each file in sequence
+and removes all
+.I nroff
+and
+.I troff
+command lines, backslash constructions, macro definitions,
+.I eqn
+constructs
+(between `.EQ' and `.EN' lines or between 
+delimiters),
+and table descriptions
+and writes the remainder on the standard output.
+.I Deroff
+follows chains of included files
+(`.so' and `.nx' commands);
+if a file has already been included, a `.so' is ignored and a `.nx' terminates execution.
+If no input file is given,
+.I deroff
+reads from the standard input file.
+.PP
+If the
+.B \-w
+flag is given, the output is a word list, one `word' (string of letters, digits, and apostrophes,
+beginning with a letter; apostrophes are removed) per line, and all other characters ignored.
+Otherwise, the output follows the original, with the deletions mentioned above.
+.SH "SEE ALSO"
+troff(1), eqn(1), tbl(1)
+.SH BUGS
+.I Deroff
+is not a complete
+.I troff
+interpreter,
+so it can be confused by subtle constructs.
+Most errors result in too much rather than too little output.