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- #! /bin/perl -P- # -*- Perl -*-
- #Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
- # Written by James Clark (jjc@jclark.com)
- #
- #This file is part of groff.
- #
- #groff is free software; you can redistribute it and/or modify it under
- #the terms of the GNU General Public License as published by the Free
- #Software Foundation; either version 2, or (at your option) any later
- #version.
- #
- #groff is distributed in the hope that it will be useful, but WITHOUT ANY
- #WARRANTY; without even the implied warranty of MERCHANTABILITY or
- #FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- #for more details.
- #
- #You should have received a copy of the GNU General Public License along
- #with groff; see the file COPYING. If not, write to the Free Software
- #Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- $prog = $0;
- $prog =~ s@.*/@@;
-
- do 'getopts.pl';
- do Getopts('e:sd:i:a:n');
-
- if ($#ARGV != 2) {
- die "Usage: $prog [-ns] [-d DESC] [-e encoding] [-i n] [-a angle] afmfile mapfile font\n";
- }
-
- $afm = $ARGV[0];
- $map = $ARGV[1];
- $font = $ARGV[2];
- $desc = $opt_d || "DESC";
-
- # read the afm file
-
- open(AFM, $afm) || die "$prog: can't open \`$ARGV[0]': $!\n";
-
- while (<AFM>) {
- chop;
- @field = split(' ');
- if ($field[0] eq "FontName") {
- $psname = $field[1];
- }
- elsif($field[0] eq "ItalicAngle") {
- $italic_angle = -$field[1];
- }
- elsif ($field[0] eq "KPX") {
- if ($#field == 3) {
- push(kern1, $field[1]);
- push(kern2, $field[2]);
- push(kernx, $field[3]);
- }
- }
- elsif ($field[0] eq "italicCorrection") {
- $italic_correction{$field[1]} = $field[2];
- }
- elsif ($field[0] eq "leftItalicCorrection") {
- $left_italic_correction{$field[1]} = $field[2];
- }
- elsif ($field[0] eq "subscriptCorrection") {
- $subscript_correction{$field[1]} = $field[2];
- }
- elsif ($field[0] eq "StartCharMetrics") {
- while (<AFM>) {
- @field = split(' ');
- last if ($field[0] eq "EndCharMetrics");
- if ($field[0] eq "C") {
- $c = -1;
- $wx = 0;
- $n = "";
- $lly = 0;
- $ury = 0;
- $llx = 0;
- $urx = 0;
- $c = $field[1];
- $i = 2;
- while ($i <= $#field) {
- if ($field[$i] eq "WX") {
- $w = $field[$i + 1];
- $i += 2;
- }
- elsif ($field[$i] eq "N") {
- $n = $field[$i + 1];
- $i += 2;
- }
- elsif ($field[$i] eq "B") {
- $llx = $field[$i + 1];
- $lly = $field[$i + 2];
- $urx = $field[$i + 3];
- $ury = $field[$i + 4];
- $i += 5;
- }
- elsif ($field[$i] eq "L") {
- push(ligatures, $field[$i + 2]);
- $i += 3;
- }
- else {
- while ($i <= $#field && $field[$i] ne ";") {
- $i++;
- }
- $i++;
- }
- }
- if (!$opt_e && $c != -1) {
- $encoding[$c] = $n;
- $in_encoding{$n} = 1;
- }
- $width{$n} = $w;
- $height{$n} = $ury;
- $depth{$n} = -$lly;
- $left_side_bearing{$n} = -$llx;
- $right_side_bearing{$n} = $urx - $w;
- }
- }
- }
- }
- close(AFM);
-
- # read the DESC file
-
- $sizescale = 1;
-
- open(DESC, $desc) || die "$prog: can't open \`$desc': $!\n";
- while (<DESC>) {
- next if /^#/;
- chop;
- @field = split(' ');
- last if $field[0] eq "charset";
- if ($field[0] eq "res") { $resolution = $field[1]; }
- if ($field[0] eq "unitwidth") { $unitwidth = $field[1]; }
- if ($field[0] eq "sizescale") { $sizescale = $field[1]; }
- }
- close(DESC);
-
- if ($opt_e) {
- # read the encoding file
-
- open(ENCODING, $opt_e) || die "$prog: can't open \`$opt_e': $!\n";
- while (<ENCODING>) {
- chop;
- @field = split(' ');
- if ($#field == 1) {
- if ($field[1] >= 0 && defined $width{$field[0]}) {
- $encoding[$field[1]] = $field[0];
- $in_encoding{$field[0]} = 1;
- }
- }
- }
- close(ENCODING);
- }
-
- # read the map file
-
- open(MAP, $map) || die "$prog: can't open \`$map': $!\n";
- while (<MAP>) {
- next if /^#/;
- chop;
- @field = split(' ');
- if ($#field == 1 && $in_encoding{$field[0]}) {
- if (defined $mapped{$field[1]}) {
- warn "Both $mapped{$field[1]} and $field[0] map to $field[1]";
- }
- elsif ($field[1] eq "space") {
- # the PostScript character "space" is automatically mapped
- # to the groff character "space"; this is for grops
- warn "you are not allowed to map to the groff character `space'";
- }
- elsif ($field[0] eq "space") {
- warn "you are not allowed to map the PostScript character `space'";
- }
- else {
- $nmap{$field[0]} += 0;
- $map{$field[0],$nmap{$field[0]}} = $field[1];
- $nmap{$field[0]} += 1;
- $mapped{$field[1]} = $field[0];
- }
- }
- }
- close(MAP);
-
- $italic_angle = $opt_a if $opt_a;
-
- # print it all out
-
- open(FONT, ">$font") || die "$prog: can't open \`$font' for output: $!\n";
- select(FONT);
-
- print("name $font\n");
- print("internalname $psname\n") if $psname;
- print("special\n") if $opt_s;
- printf("slant %g\n", $italic_angle) if $italic_angle != 0;
- printf("spacewidth %d\n", do conv($width{"space"})) if defined $width{"space"};
-
- if ($opt_e) {
- $e = $opt_e;
- $e =~ s@.*/@@;
- print("encoding $e\n");
- }
-
- if (!$opt_n && $#ligatures >= 0) {
- print("ligatures");
- foreach $lig (@ligatures) {
- print(" $lig");
- }
- print(" 0\n");
- }
-
- if ($#kern1 >= 0) {
- print("kernpairs\n");
-
- for ($i = 0; $i <= $#kern1; $i++) {
- $c1 = $kern1[$i];
- $c2 = $kern2[$i];
- if ($in_encoding{$c1} == 1 && $nmap{$c1} != 0
- && $in_encoding{$c2} == 1 && $nmap{$c2} != 0) {
- for ($j = 0; $j < $nmap{$c1}; $j++) {
- for ($k = 0; $k < $nmap{$c2}; $k++) {
- if ($kernx[$i] != 0) {
- printf("%s %s %d\n",
- $map{$c1,$j},
- $map{$c2,$k},
- do conv($kernx[$i]));
- }
- }
- }
- }
- }
- }
-
- # characters not shorter than asc_boundary are considered to have ascenders
- $asc_boundary = $height{"t"} - 1;
-
- # likewise for descenders
- $desc_boundary = $depth{"g"};
- $desc_boundary = $depth{"j"} if $depth{"j"} < $desc_boundary;
- $desc_boundary = $depth{"p"} if $depth{"p"} < $desc_boundary;
- $desc_boundary = $depth{"q"} if $depth{"q"} < $desc_boundary;
- $desc_boundary = $depth{"y"} if $depth{"y"} < $desc_boundary;
- $desc_boundary -= 1;
-
- if (defined $height{"x"}) {
- $xheight = $height{"x"};
- }
- elsif (defined $height{"alpha"}) {
- $xheight = $height{"alpha"};
- }
- else {
- $xheight = 450;
- }
-
- $italic_angle = $italic_angle*3.14159265358979323846/180.0;
- $slant = sin($italic_angle)/cos($italic_angle);
- $slant = 0 if $slant < 0;
-
- print("charset\n");
- for ($i = 0; $i < 256; $i++) {
- $ch = $encoding[$i];
- if ($ch ne "" && $ch ne "space") {
- $map{$ch,"0"} = "---" if $nmap{$ch} == 0;
- $type = 0;
- $h = $height{$ch};
- $h = 0 if $h < 0;
- $d = $depth{$ch};
- $d = 0 if $d < 0;
- $type = 1 if $d >= $desc_boundary;
- $type += 2 if $h >= $asc_boundary;
- printf("%s\t%d", $map{$ch,"0"}, do conv($width{$ch}));
- $italic_correction = 0;
- $left_math_fit = 0;
- $subscript_correction = 0;
- if (defined $opt_i) {
- $italic_correction = $right_side_bearing{$ch} + $opt_i;
- $italic_correction = 0 if $italic_correction < 0;
- $subscript_correction = $slant * $xheight * .8;
- $subscript_correction = $italic_correction if
- $subscript_correction > $italic_correction;
- $left_math_fit = $left_side_bearing{$ch} + $opt_i;
- }
- if (defined $italic_correction{$ch}) {
- $italic_correction = $italic_correction{$ch};
- }
- if (defined $left_italic_correction{$ch}) {
- $left_math_fit = $left_italic_correction{$ch};
- }
- if (defined $subscript_correction{$ch}) {
- $subscript_correction = $subscript_correction{$ch};
- }
- if ($subscript_correction != 0) {
- printf(",%d,%d", do conv($h), do conv($d));
- printf(",%d,%d,%d", do conv($italic_correction),
- do conv($left_math_fit),
- do conv($subscript_correction));
- }
- elsif ($left_math_fit != 0) {
- printf(",%d,%d", do conv($h), do conv($d));
- printf(",%d,%d", do conv($italic_correction),
- do conv($left_math_fit));
- }
- elsif ($italic_correction != 0) {
- printf(",%d,%d", do conv($h), do conv($d));
- printf(",%d", do conv($italic_correction));
- }
- elsif ($d != 0) {
- printf(",%d,%d", do conv($h), do conv($d));
- }
- else {
- # always put the height in to stop groff guessing
- printf(",%d", do conv($h));
- }
- printf("\t%d", $type);
- printf("\t0%03o\t%s\n", $i, $ch);
- for ($j = 1; $j < $nmap{$ch}; $j++) {
- printf("%s\t\"\n", $map{$ch,$j});
- }
- }
- if ($ch eq "space" && defined $width{"space"}) {
- printf("space\t%d\t0\t0%03o\n", do conv($width{"space"}), $i);
- }
- }
-
- sub conv {
- $_[0]*$unitwidth*$resolution/(72*1000*$sizescale) + ($_[0] < 0 ? -.5 : .5);
- }
-