.TH ADDFTINFO 1 "7 February 2022" "groff 1.22.4"
.SH NAME
addftinfo \- add information to troff font files for use with groff
.
.
.\" ====================================================================
.\" Legal Terms
.\" ====================================================================
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.\" Copyright (C) 1989-2018 Free Software Foundation, Inc.
.\"
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.\" preserved on all copies.
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.\" 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.
.
.
.\" ====================================================================
.\" Characters
.\" ====================================================================
.
.\" Ellipsis ...
.ie t .ds EL \fS\N'188'\fP\"
.el .ds EL \&.\|.\|.\&\"
.\" called with \*(EL
.
.
.\" ====================================================================
.SH SYNOPSIS
.\" ====================================================================
.
.SY addftinfo
.OP \-asc\-height n
.OP \-body\-depth n
.OP \-body\-height n
.OP \-cap\-height n
.OP \-comma\-depth n
.OP \-desc\-depth n
.OP \-fig\-height n
.OP \-x\-height n
.I res
.I unitwidth
.I font
.YS
.
.SY addftinfo
.B \-\-help
.YS
.
.SY addftinfo
.B \-v
.SY addftinfo
.B \-\-version
.YS
.
.
.\" ====================================================================
.SH DESCRIPTION
.\" ====================================================================
.
.B addftinfo
reads a troff font file and adds some additional font-metric
information that is used by the groff system.
.
The font file with the information added is written on the standard
output.
.
The information added is guessed using some parametric information
about the font and assumptions about the traditional troff names for
characters.
.
The main information added is the heights and depths of characters.
.
The
.I res
and
.I unitwidth
arguments should be the same as the corresponding parameters in the
DESC file;
.I font
is the name of the file describing the font;
if
.I font
ends with
.B I
the font will be assumed to be italic.
.
.
.\" ====================================================================
.SH OPTIONS
.\" ====================================================================
.
.B \-v
prints the version number.
.
.
.LP
All other options change one of the parameters that are used to derive
the heights and depths.
.
Like the existing quantities in the font file, each
.I value
is in
.RI inches/ res
for a font whose point size is
.IR unitwidth .
.
.I param-option
must be one of:
.
.TP
.B \-x\-height
The height of lowercase letters without ascenders such as x.
.
.TP
.B \-fig\-height
The height of figures (digits).
.
.TP
.B \-asc\-height
The height of characters with ascenders, such as b, d or l.
.
.TP
.B \-body\-height
The height of characters such as parentheses.
.
.TP
.B \-cap\-height
The height of uppercase letters such as A.
.
.TP
.B \-comma\-depth
The depth of a comma.
.
.TP
.B \-desc\-depth
The depth of characters with descenders, such as p, q, or y.
.
.TP
.B \-body\-depth
The depth of characters such as parentheses.
.
.
.LP
.B addftinfo
makes no attempt to use the specified parameters to guess the
unspecified parameters.
.
If a parameter is not specified the default will be used.
.
The defaults are chosen to have the reasonable values for a Times
font.
.
.
.\" ====================================================================
.SH "SEE ALSO"
.\" ====================================================================
.
.BR groff_font (5),
.BR groff (1),
.BR groff_char (7)
.
.
.P
You can view a man page
.IB name ( n )
with
.RS
.EX
.BI "man" " n name"
.EE
.RE
in text mode and with
.RS
.EX
.BI "groffer" " n name"
.EE
.RE
in graphical mode (PDF, etc.).
.
.
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