#!/usr/bin/perl
my @cmpfiles;
while($ARGV[0] eq "-c") {
shift(@ARGV);
push(@cmpfiles, shift(@ARGV));
}
if( $#ARGV < 1) {
die("Usage: $0 [-c file]... file glyph-code...\n");
}
$fname=shift @ARGV;
# storage for files
my %fontname;
my %fbbox;
my %fblues;
my %fenc;
my %frevenc;
my %fsubrs;
my %fchars;
my @cmnbbox; # common bounding box covering all files
@cmnbbox = (100, 100, 100, 100);
# read all files into memory
for $f (@cmpfiles, $fname) {
open(FILE, "<$f") or die("no such file $f");
while(<FILE>) {
if(/FontBBox\s+\{\s*(.*)\s*}/) {
@bbox=split(/\s+/, $1);
push(@{$fbbox{$f}}, @bbox);
if($bbox[0] < $cmnbbox[0]) {
$cmnbbox[0] = $bbox[0];
}
if($bbox[1] < $cmnbbox[1]) {
$cmnbbox[1] = $bbox[1];
}
if($bbox[2] > $cmnbbox[2]) {
$cmnbbox[2] = $bbox[2];
}
if($bbox[3] > $cmnbbox[3]) {
$cmnbbox[3] = $bbox[3];
}
} elsif( /BlueValues\s+\[\s*(.*)\s*\]/ || /OtherBlues\s+\[\s*(.*)\s*\]/ ) {
@blues=split(/\s+/, $1);
push(@{$fblues{$f}}, @blues);
} elsif( /^dup\s+(\d+)\s+\/(\S+)\s+put/ ) {
$fenc{$f}{$1} = $2;
if( ! defined $frevenc{$f}{$2} ) {
$frevenc{$f}{$2} = $1;
}
} elsif( /^dup\s+(\d+)\s+\{\s*$/ ) {
$key = $1;
$bf = $_;
while(<FILE>) {
$bf .= $_;
if( /\}\s+NP/ ) {
last;
}
}
$fsubrs{$f}{$key} = $bf;
} elsif( /^\/(\S+)\s+\{\s*$/ ) {
$key = $1;
$bf = $_;
while(<FILE>) {
$bf .= $_;
if( /endchar/ ) {
last;
}
}
$fchars{$f}{$key} = $bf;
} elsif( /^\/FontName\s+(\S+)/ ) {
$fontname{$f} = $1;
}
}
close(FILE);
}
######################## Prolog ###################################
print("%%!PS-Adobe-1.0
%%DocumentNeededResources: font Courier
%%Pages: (atend)
%%EndComments
%%BeginProlog
/cmpfcolorarray [
[ 1 0.2 0.2 ] % slightly lighter red
[ 0 0.7 0.7 ] % cyan
[ 0.7 0.7 0 ] % brown-yellow
] def
/cmpfcolor { % number -> .
cmpfcolorarray length mod % get the subarray number
cmpfcolorarray exch get aload pop setrgbcolor
} bind def
/contourcolor { 0 0 0 setrgbcolor } bind def % black
/bluezonecolor { 0.95 0.95 1 setrgbcolor } bind def % very light blue
/coordcolor { 0 1 0 setrgbcolor } bind def % green
/textcolor { 0 0 0 setrgbcolor } bind def % black
/stemcolor { 1 0 0 setrgbcolor } bind def % red
/mainstemcolor { 0 0 1 setrgbcolor } bind def % blue
% /fnt2pt { 72 5 mul 1000 div } bind def
/linehor { % . font_y -> .
gsave
0 72 translate
72 fnt2pt scale
newpath
0 exch moveto
7 0 rlineto
stroke
grestore
} bind def
/linevert { % . font_x -> .
gsave
72 0 translate
fnt2pt 72 scale
newpath
0 moveto
0 7 rlineto
stroke
grestore
} bind def
/bluezone { % . font_y_1 font_y_2 -> .
gsave
bluezonecolor
0 72 translate
72 fnt2pt scale
newpath
0 exch moveto
7 0 rlineto
7 exch lineto
-7 0 rlineto
closepath
fill
grestore
} bind def
/drawstem { % . xwidth ywidth x0 y0 -> .
gsave
72 72 translate fnt2pt fnt2pt scale xorg yorg translate
newpath
moveto
dup 0 exch rlineto
exch 0 rlineto
neg 0 exch rlineto
closepath fill
grestore
} bind def
/getlen {
dup stringwidth pop
} bind def
/compressfont 0.8 def
/label { % . string stringwd y -> .
dup lasty lt {
dup lasty fontsz sub le
} {
dup lasty fontsz add ge
} ifelse {
/curx 0 store
} if
dup /lasty exch store
0 exch moveto
compressfont mul dup curx add maxx gt {
/curx 0 store
} if
curx 0 rmoveto
dup 0 rlineto
stroke
gsave
curx lasty moveto
curx add /curx exch store
compressfont 1 scale
show
grestore
} bind def
");
@bbox=@cmnbbox;
$nx=$bbox[2]-$bbox[0];
$ny=$bbox[3]-$bbox[1];
$maxsz= ($nx>$ny) ? $nx : $ny;
$fnt2pt= 72*5/$maxsz;
printf("/fnt2pt 72 5 mul %d div def\n", $maxsz);
$xorg= -($bbox[0]-($maxsz-$nx)/2);
$yorg= -($bbox[1]-($maxsz-$ny)/2);
printf("/xorg %d def /yorg %d def\n", $xorg, $yorg);
print("
%%EndProlog
");
######################## Subroutines ##############################
sub bluezone # from to
{
my ($a, $b)=@_;
printf("%d %d bluezone\n",$a+$yorg, $b+$yorg);
$ycoord{$a+0}=1;
$ycoord{$b+0}=1;
}
sub linehor # x
{
my $a=$_[0];
printf("%d linehor\n",$a+$yorg);
$ycoord{$a+0}=1;
}
sub linevert # x
{
my $a=$_[0];
printf("%d linevert\n",$a+$xorg);
$xcoord{$a+0}=1;
}
sub hstem # from width
{
my ($from, $width)=@_;
$stemhused=1;
printf("%d %d %d %d drawstem %% %d %d h \n", -$stemwd, $width,
$bbox[0]-2-$stemhgrp*$stemwd, $from,
$from, $width);
printf("%d %d %d %d drawstem %% %d %d h \n", $stemwd, $width,
$bbox[2]+2+$stemhgrp*$stemwd, $from,
$from, $width);
}
sub vstem # from width
{
my ($from, $width)=@_;
$stemvused=1;
printf("%d %d %d %d drawstem %% %d %d v \n", $width, -$stemwd,
$from, $bbox[1]-2-$stemhgrp*$stemwd,
$from, $width);
printf("%d %d %d %d drawstem %% %d %d v \n", $width, $stemwd,
$from, $bbox[3]+2+$stemhgrp*$stemwd,
$from, $width);
}
sub nextstemgrp
{
if($stemhused || $stemvused) {
$stemhgrp++;
$stemhused=0;
$stemvgrp++;
$stemvused=0;
}
}
sub substems # fname subrlist
{
my $fname = shift;
my $i, $cmd, @vals;
print("\nstemcolor\n");
for $i (@_) {
&nextstemgrp();
for $_ (split(/\n/, $fsubrs{$fname}{$i})) {
s/^\s+//;
@vals=split(/\s+/, $_);
$cmd=$vals[$#vals];
if($cmd eq "hstem") {
&hstem($vals[0], $vals[1]);
} elsif($cmd eq "vstem") {
&vstem($vals[0], $vals[1]);
}
}
}
print("\n");
}
sub drawcharwstems # charstring
{
my($x,$y)=(0,0);
my @vals, $cmd, $i;
print("\nmainstemcolor\n");
&nextstemgrp();
for $_ (split(/\n/, $_[0])) {
s/^\s+//;
@vals=split(/\s+/, $_);
$cmd=$vals[$#vals];
if($cmd eq "hsbw") {
$x=$vals[0]+0;
} elsif($cmd eq "hstem") {
&hstem($vals[0], $vals[1]);
} elsif($cmd eq "hstem3") {
&hstem($vals[0], $vals[1]);
&hstem($vals[2], $vals[3]);
&hstem($vals[4], $vals[5]);
} elsif($cmd eq "vstem") {
&vstem($vals[0], $vals[1]);
} elsif($cmd eq "vstem3") {
&vstem($vals[0], $vals[1]);
&vstem($vals[2], $vals[3]);
&vstem($vals[4], $vals[5]);
} elsif($cmd eq "rmoveto") {
# a shortcut
last;
}
}
&drawchar("drawchar", 1, "contourcolor", $_[0]);
}
sub drawchar #procname wantgrid color charstring
{
my($procname, $wantgrid, $color, $charstring) = @_;
my($x,$y)=(0,0);
my @vals, $cmd, $i;
my %xv=();
my %yv=();
printf("\n/%s {\n",$procname);
printf("\ngsave 72 72 translate fnt2pt fnt2pt scale %d %d translate\n", $xorg, $yorg);
printf("%s 1 setlinewidth newpath\n", $color);
for $_ (split(/\n/, $charstring)) {
s/^\s+//;
@vals=split(/\s+/, $_);
$cmd=$vals[$#vals];
if($cmd eq "callsubr" && $vals[1] == 4) {
push(@subrlist, $vals[0]);
} elsif($cmd eq "amoveto") {
$x=$vals[0]+0;
$y=$vals[1]+0;
$xv{$x+0}=1; $yv{$y+0}=1;
printf("%d %d moveto\n", $x, $y);
printf("%d %d 5 0 360 arc %d %d moveto\n", $x, $y, $x, $y);
} elsif($cmd eq "rmoveto") {
$x+=$vals[0];
$y+=$vals[1];
$xv{$x+0}=1; $yv{$y+0}=1;
printf("%d %d moveto\n", $x, $y);
printf("%d %d 5 0 360 arc %d %d moveto\n", $x, $y, $x, $y);
} elsif($cmd eq "hmoveto") {
$x+=$vals[0];
$xv{$x+0}=1; $yv{$y+0}=1;
printf("%d %d moveto\n", $x, $y);
printf("%d %d 5 0 360 arc %d %d moveto\n", $x, $y, $x, $y);
} elsif($cmd eq "vmoveto") {
$y+=$vals[0];
$xv{$x+0}=1; $yv{$y+0}=1;
printf("%d %d moveto\n", $x, $y);
printf("%d %d 5 0 360 arc %d %d moveto\n", $x, $y, $x, $y);
} elsif($cmd eq "alineto") {
$x=$vals[0]+0;
$y=$vals[1]+0;
$xv{$x+0}=1; $yv{$y+0}=1;
printf("%d %d lineto\n", $x, $y);
printf("%d %d 3 0 360 arc %d %d moveto\n", $x, $y, $x, $y);
} elsif($cmd eq "rlineto") {
$x+=$vals[0];
$y+=$vals[1];
$xv{$x+0}=1; $yv{$y+0}=1;
printf("%d %d lineto\n", $x, $y);
printf("%d %d 3 0 360 arc %d %d moveto\n", $x, $y, $x, $y);
} elsif($cmd eq "hlineto") {
$x+=$vals[0];
$xv{$x+0}=1; $yv{$y+0}=1;
printf("%d %d lineto\n", $x, $y);
printf("%d %d 3 0 360 arc %d %d moveto\n", $x, $y, $x, $y);
} elsif($cmd eq "vlineto") {
$y+=$vals[0];
$xv{$x+0}=1; $yv{$y+0}=1;
printf("%d %d lineto\n", $x, $y);
printf("%d %d 3 0 360 arc %d %d moveto\n", $x, $y, $x, $y);
} elsif($cmd eq "arcurveto") {
for $i (0,2,4) {
$x=$vals[$i]+0;
$y=$vals[$i+1]+0;
printf("%d %d ", $x, $y);
}
$xv{$x+0}=1; $yv{$y+0}=1;
printf("curveto\n");
printf("%d %d 3 0 360 arc %d %d moveto\n", $x, $y, $x, $y);
} elsif($cmd eq "rrcurveto") {
for $i (0,2,4) {
$x+=$vals[$i];
$y+=$vals[$i+1];
printf("%d %d \n", $x, $y);
}
$xv{$x+0}=1; $yv{$y+0}=1;
printf("curveto\n");
printf("%d %d 3 0 360 arc %d %d moveto\n", $x, $y, $x, $y);
} elsif($cmd eq "hvcurveto") {
$x+=$vals[0];
printf("%d %d \n", $x, $y);
$x+=$vals[1];
$y+=$vals[2];
printf("%d %d \n", $x, $y);
$y+=$vals[3];
printf("%d %d \n", $x, $y);
$xv{$x+0}=1; $yv{$y+0}=1;
printf("curveto\n");
printf("%d %d 3 0 360 arc %d %d moveto\n", $x, $y, $x, $y);
} elsif($cmd eq "vhcurveto") {
$y+=$vals[0];
printf("%d %d \n", $x, $y);
$x+=$vals[1];
$y+=$vals[2];
printf("%d %d \n", $x, $y);
$x+=$vals[3];
printf("%d %d \n", $x, $y);
$xv{$x+0}=1; $yv{$y+0}=1;
printf("curveto\n");
printf("%d %d 3 0 360 arc %d %d moveto\n", $x, $y, $x, $y);
} elsif($cmd eq "closepath") {
printf("closepath stroke newpath\n");
}
}
printf("grestore } bind def\n");
if($wantgrid) {
printf("coordcolor\n");
for $x (keys %xv) {
&linevert($x);
}
for $y (keys %yv) {
&linehor($y);
}
}
}
$pages=0;
for $arg (@ARGV) {
undef $name, $code;
if( $arg =~ /^\/(.*)/ ) {
$name=$1;
} elsif( $arg =~ /^\.(.)/ ) {
$code=ord($1);
} else {
$code=$arg;
}
$pages++;
$stemhgrp=0;
$stemhused=0;
$stemvgrp=0;
$stemvused=0;
$stemwd=10;
undef %xcoord;
undef %ycoord;
if( defined $name ) {
$xname = $name;
$xcode = $frevenc{$fname}{$name};
if( $xcode eq "" ) {
$xcode = "**UNKNOWN**";
}
} else {
$xname = $fenc{$fname}{$code};
if( $xname eq "" ) {
$xname = "**UNKNOWN**";
}
$xcode = $code;
}
printf("%%%%Page: %d %d\n", $pages, $pages);
printf("gsave
0 setlinewidth
36 72 translate
gsave
contourcolor
72 72 scale
newpath
0 0 moveto
7 0 rlineto
0 7 rlineto
-7 0 rlineto
closepath
stroke
1 1 translate
newpath
0 0 moveto
5 0 rlineto
0 5 rlineto
-5 0 rlineto
closepath
stroke
grestore
");
undef @subrlist;
@bbox=@{$fbbox{$fname}};
print("coordcolor\n");
printf("0 linehor %d linehor %d linehor\n", $bbox[1]+$yorg, $bbox[3]+$yorg);
printf("%d linevert %d linevert\n", $bbox[0]+$xorg, $bbox[2]+$xorg);
%vals=@{$fblues{$fname}};
for $i (keys %vals) {
&bluezone($i, $vals{$i});
}
$havechar = 1;
if( defined $fchars{$fname}{$xname} ) {
&drawcharwstems($fchars{$fname}{$xname});
} else {
$havechar = 0;
if(defined $name) {
printf(STDERR "WARNING: %s nas no character with name \"%s\"\n", $fname, $name);
} else {
printf(STDERR "WARNING: %s nas no character with code \"%s\"\n", $fname, $code);
}
}
&substems($fname, @subrlist);
printf(STDERR "glyph name:%s code:%s (%d substituted stem groups)\n", $xname, $xcode, scalar @subrlist);
$cmpfidx = 0;
for $cmpf(@cmpfiles) {
undef $cname, $ccode;
if( defined $name ) {
if ( ! defined $fchars{$cmpf}{$name} && defined $fenc{$cmpf}{$xcode}) {
printf(STDERR " NOTE: %s nas no glyph with name \"%s\", guessed by code\n", $cmpf, $name);
$cname = $fenc{$cmpf}{$xcode};
if( $cname eq "" ) {
$cname = "**UNKNOWN**";
}
$ccode = $xcode;
} else {
$cname = $name;
$ccode = $frevenc{$cmpf}{$name};
if( $ccode eq "" ) {
$ccode = "**UNKNOWN**";
}
}
} else {
$cname = $fenc{$cmpf}{$code};
if( $cname eq "" ) {
$cname = "**UNKNOWN**";
}
$ccode = $code;
}
if( defined $fchars{$cmpf}{$cname} ) {
&drawchar("drawcmpchar", 0, sprintf("%d cmpfcolor", $cmpfidx),
$fchars{$cmpf}{$cname});
printf("drawcmpchar\n\n");
printf(STDERR " in %s glyph name:%s code:%s\n", $cmpf, $cname, $ccode);
} else {
if(defined $name) {
printf(STDERR " WARNING: %s nas no character with name \"%s\"\n", $cmpf, $name);
} else {
printf(STDERR " WARNING: %s nas no character with code \"%s\"\n", $cmpf, $code);
}
}
$cmpfidx++;
}
if($havechar) {
printf("drawchar\n\n");
}
# flush the last group
&nextstemgrp();
# the values of coordinates
printf("/fontsz 8 fnt2pt div def\n");
printf("/Myfont /Courier findfont fontsz scalefont def\n\n");
printf("contourcolor Myfont setfont\n");
for $org (0, $xorg+$bbox[2]+$stemwd*$stemhgrp+72/$fnt2pt) {
printf("gsave\n");
printf("/maxx 72 fnt2pt div %d sub def /curx 0 def /lasty -10000 def\n",
2+$stemhgrp*$stemwd-$xorg-$bbox[0]);
printf("0 72 translate fnt2pt fnt2pt scale %f yorg translate 1 setlinewidth\n", $org);
for $y (sort {$a <=> $b} keys %ycoord) {
printf("(%d) getlen %d label\n", $y, $y);
}
printf("grestore\n");
}
for $org (0, $yorg+$bbox[3]+$stemwd*$stemvgrp+72/$fnt2pt) {
printf("gsave\n");
printf("/maxx 72 fnt2pt div %d sub def /curx 0 def /lasty -10000 def\n",
2+$stemvgrp*$stemwd-$yorg-$bbox[1]);
printf("72 0 translate fnt2pt fnt2pt scale xorg %f translate 90 rotate 1 setlinewidth\n", $org);
for $x (sort {$a <=> $b} keys %xcoord) {
printf("(%d) getlen %d label\n", $x, -$x);
}
printf("grestore\n");
}
printf("gsave 0 %d translate\n", 7.5*72 );
printf("contourcolor /Courier findfont 12 scalefont setfont\n");
$line = 0;
$cmpfidx = $#cmpfiles;
if( $cmpfidx > (2.5*72/15)-4 ) {
$cmpfidx = (2.5*72/15)-4;
}
for(; $cmpfidx>=0; $cmpfidx--) {
$cmpf = $cmpfiles[$cmpfidx];
printf("%d cmpfcolor\n", $cmpfidx);
printf("newpath 20 %d moveto 0 10 rlineto 10 0 rlineto 0 -10 rlineto closepath fill\n",
15*$line, $cmpf);
printf("contourcolor 40 %d moveto (%s %s) show\n", 15*$line, $cmpf, $fontname{$cmpf});
$line++;
}
if( $#cmpfiles >=0 ) {
printf("0 %d moveto (Comparison files:) show\n", 15*$line++);
}
printf("0 %d moveto (code: %d name: %s) show\n", 15*$line++, $xcode, $xname);
printf("0 %d moveto (%s) show\n", 15*$line++, $fname);
printf("0 %d moveto (%s) show\n", 15*$line++, $fontname{$fname});
printf("grestore\n\n");
printf("showpage grestore\n\n");
}
printf("%%%%Pages: %d\n", $pages);
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