151 lines
3.4 KiB
Groff
151 lines
3.4 KiB
Groff
.\" $Id: tfmtodit.1,v 1.2 1993/08/02 17:45:19 mycroft Exp $ -*- nroff -*-
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.ie t .ds tx T\h'-.1667m'\v'.224m'E\v'-.224m'\h'-.125m'X
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.el .ds tx TeX
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.\" Like TP, but if specified indent is more than half
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.\" the current line-length - indent, use the default indent.
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.de Tp
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.ie \\n(.$=0:((0\\$1)*2u>(\\n(.lu-\\n(.iu)) .TP
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.el .TP "\\$1"
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..
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.TH TFMTODIT 1 "6 August 1992" "Groff Version 1.08"
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.SH NAME
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tfmtodit \- create font files for use with groff \-Tdvi
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.SH SYNOPSIS
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.B tfmtodit
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[
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.B \-sv
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]
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[
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.BI \-g gf_file
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]
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[
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.BI \-k skewchar
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]
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.I tfm_file
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.I map_file
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.I font
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.SH DESCRIPTION
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.B tfmtodit
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creates a font file for use with
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.B
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groff \-Tdvi\fR.
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.I tfm_file
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is the name of the \*(tx font metric file for the font.
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.I map_file
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is a file giving the groff names for characters in the font;
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this file should consist of a sequence of lines of the form:
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.IP
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.I
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n c1 c2 \fR.\|.\|.
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.LP
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where
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.I n
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is a decimal integer giving the position of the character in the font,
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and
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.IR c1 ,
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.IR c2 ,.\|.\|.
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are the groff names of the character.
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If a character has no groff names but exists in the tfm file,
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then it will be put in the groff font file as an unnamed character.
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.I font
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is the name of the groff font file.
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The groff font file is written to
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.IR font .
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.LP
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The
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.B \-s
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option should be given if the font is special
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(a font is
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.I special
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if
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.B troff
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should search it whenever
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a character is not found in the current font.)
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If the font is special,
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it should be listed in the
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.B fonts
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command in the DESC file;
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if it is not special, there is no need to list it, since
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.B troff
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can automatically mount it when it's first used.
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.LP
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To do a good job of math typesetting, groff requires
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font metric information not present in the tfm file.
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The reason for this is that \*(tx has separate math italic fonts
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whereas groff uses normal italic fonts for math.
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The additional information required by groff is given by the
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two arguments to the
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.B math_fit
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macro in the Metafont programs for the Computer Modern fonts.
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In a text font (a font for which
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.B math_fitting
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is false), Metafont normally ignores these two arguments.
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Metafont can be made to put this information in the gf file
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by loading the following definition after
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.B cmbase
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when creating
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.BR cm.base :
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.IP
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.nf
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.ft B
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def ignore_math_fit(expr left_adjustment,right_adjustment) =
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special "adjustment";
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numspecial left_adjustment*16/designsize;
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numspecial right_adjustment*16/designsize;
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enddef;
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.fi
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.ft R
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.LP
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The gf file created using this modified
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.B cm.base
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should be specified with the
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.B \-g
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option.
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The
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.B \-g
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option should not be given for a font for which
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.B math_fitting
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is true.
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.SH OPTIONS
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.TP
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.B \-v
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Print the version number.
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.TP
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.B \-s
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The font is special.
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The effect of this option is to add the
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.B special
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command to the font file.
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.TP
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.BI \-k n
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The skewchar of this font is at position
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.IR n .
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.I n
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should be an integer;
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it may be given in decimal,
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or with a leading
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.B 0
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in octal,
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or with a leading
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.B 0x
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in hexadecimal.
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The effect of this option is to ignore any kerns whose second component
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is the specified character.
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.TP
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.BI \-g gf_file
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.I gf_file
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is a gf file produced by Metafont containing special and numspecial
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commands giving additional font metric information.
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.SH FILES
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.Tp \w'\fB/usr/share/groff_font/devdvi/DESC'u+2n
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.B /usr/share/groff_font/devdvi/DESC
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Device desciption file.
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.TP
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.BI /usr/share/groff_font/devdvi/ F
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Font description file for font
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.IR F .
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.SH "SEE ALSO"
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.BR groff (1),
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.BR grodvi (1),
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.BR groff_font (5)
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