.TH DEROFF 1
.SH NAME
-deroff, delatex \- remove formatting requests
+deroff \- remove formatting requests
.SH SYNOPSIS
.B deroff
[
.I option ...
]
.I file ...
-.PP
-.B delatex
-.I file
.SH DESCRIPTION
.I Deroff
reads each file in sequence
Same as
.BR -mm ,
but remove lists as well.
-.PP
-.I Delatex
-does for
-.I tex
-and
-.I latex
-(see
-.IR tex (1))
-files what
-.B deroff -wi
-does for
-.I troff
-files.
.SH SOURCE
.B /sys/src/cmd/deroff.c
.br
.B /sys/src/cmd/tex/local/delatex.c
.SH "SEE ALSO"
.IR troff (1),
-.IR tex (1),
.IR spell (1)
.SH BUGS
-These filters are not complete interpreters of
-.I troff
-or
-.IR tex .
+This filter is not a complete interpreter of
+.I troff .
For example, macro definitions containing
.L \e$
cause chaos in
The given processor is invoked.
The default processor is
.LR generic ,
-which tries to do the right thing for regular text, HTML,
+which tries to do the right thing for regular text, HTML, or
.IR troff (1)
-output, or
-.IR tex (1)
output.
If no processing is desired
.L noproc
.if \\n($1>0 .sp .65
..
.SH NAME
-pic, tpic \- troff and tex preprocessors for drawing pictures
+pic \- troff preprocessor for drawing pictures
+
.SH SYNOPSIS
.B pic
[
.I files
]
-.PP
-.B tpic
-[
-.I files
-]
.SH DESCRIPTION
.I Pic
is a
The
.B undef
statement removes the definition of a macro.
-.PP
-.I Tpic
-is a
-.IR tex (1)
-preprocessor that accepts
-.IR pic
-language.
-It produces Tex commands that define a box called
-.BR \egraph ,
-which contains the picture.
-The box may be output this way:
-.IP
-.L
-\ecenterline{\ebox\egraph}
-.SH EXAMPLES
-.EX
-arrow "input" above; box "process"; arrow "output" above
-move
-A: ellipse
- circle rad .1 with .w at A.e
- circle rad .05 at 0.5 <A.c, A.ne>
- circle rad .065 at 0.5 <A.c, A.ne>
- spline from last circle.nw left .25 then left .05 down .05
- arc from A.c to A.se rad 0.5
- for i = 1 to 10 do { line from A.s+.025*i,.01*i down i/50 }
-.EE
-.PP
-.PS
-arrow "input" above; box "process"; arrow "output" above
-move
-A: ellipse
- circle rad .1 with .w at A.e
- circle rad .05 at 0.5 <A.c, A.ne>
- circle rad .065 at 0.5 <A.c, A.ne>
- spline from last circle.nw left .25 then left .05 down .05
- arc from A.c to A.se rad 0.5
- for i = 1 to 10 do { line from A.s+.025*i,.01*i down i/50 }
-.PE
.SH SOURCE
.B /sys/src/cmd/pic
.SH "SEE ALSO"