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vtfontcvt.8: Improve synopsis and -f documentation

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MFC after:	2 weeks
This commit is contained in:
Mateusz Piotrowski 2022-07-19 16:28:22 +02:00
parent cd8401dbde
commit b38e3722f5
1 changed files with 27 additions and 14 deletions
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41
usr.bin/vtfontcvt/vtfontcvt.8
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@ -24,7 +24,7 @@
.\"
.\" $FreeBSD$
.\"
.Dd August 2, 2020
.Dd July 19, 2022
.Dt VTFONTCVT 8
.Os
.Sh NAME
@ -33,7 +33,7 @@
.Sh SYNOPSIS
.Nm
.Op Fl n
.Op Fl f Ar font Ns | Ns Ar source Ns | Ns Ar compressed-source
.Op Fl f Ar format
.Op Fl h Ar height
.Fl o Ar output_file
.Op Fl v
@ -44,22 +44,35 @@
The
.Nm
utility reads source font files in either BDF or Unifont HEX format and
outputs a binary font file, C source, or C source with font data compressed
by using LZ4 compression method.
The output in C source is intended to be used to embed the font into program
binary.
The binary font file is for use by
.Xr vt 4 .
HEX format files must have the file extension
outputs a file in one of the available output formats.
.Pp
HEX format files
.Po Ar normal_font
and
.Ar bold_font Pc
must have the file extension
.Pa .hex .
.Pp
The following options are available:
.Bl -tag -width "12345678"
.It Fl f Ar font Ns | Ns Ar source Ns | Ns Ar compressed-source
.Bl -tag -width "-o output_file"
.It Fl f Ar format
Specify the output format.
The default is binary
.Ar font
file.
Available formats are:
.Bl -tag -width "compressed-source"
.It Cm compressed-source
C source with font data compressed by using LZ4 compression method.
.It Cm font
A binary font file
.Pq default .
.It Cm source
C source.
.El
.Pp
The output in C source is intended to be used to embed the font into program
binary.
.Pp
The binary font file is for use by
.Xr vt 4 .
.It Fl h Ar height
Set font height.
The default is 16.