99 lines
2.7 KiB
Perl
Executable File
99 lines
2.7 KiB
Perl
Executable File
#!/usr/bin/perl
|
|
#
|
|
# gif2xface -- converts a 48x48 GIF file to an X-Face mail header
|
|
#
|
|
# Author: Ricardo Mones <ricardo@mones.org>
|
|
#
|
|
# This is a hack over the original xbm2face script. The xbm files generated
|
|
# by some graphic tools (notably The Gimp version 1.2.1) aren't suitable to
|
|
# feed the compface program. Starting with a GIF and using some filters does
|
|
# the trick. A little help screen also added.
|
|
# This requieres giftopnm and pbmtoxbm (both in libgr-progs package).
|
|
#
|
|
# The original xbm2face author's comment follows:
|
|
#
|
|
# xbm2xface -- converts a 48x48 xbm file to an X-Face mail header
|
|
#
|
|
# Author: Jonathan Stigelman <Stig@hackvan.com>
|
|
#
|
|
# URL: http://hackvan.com/pub/stig/src/linux/
|
|
# FTP: hackvan.com:/pub/stig/src/linux/
|
|
#
|
|
# This is a Perl script that I wrote to convert 48x48 xbm (X bitmap) files
|
|
# into X-Face: headers suitable for inclusion in RFC822 internet
|
|
# electronic mail. A 48x48 bitmap is awfully small, but X-Faces are still
|
|
# good enough for other people to visually establish your identity in
|
|
# email without having to carefully read your name.
|
|
#
|
|
# Basically, it gets you noticed...either as the person with the cool
|
|
# X-Face or as that jerk with modem noise in all of his email messages.
|
|
#
|
|
# People will start looking over your shoulder and say "Hey Cool! How'd
|
|
# you do that?" When they do, you just send 'em to my URL for this
|
|
# utility and tell 'em to upgrade to a real mail reader: XEmacs and VM.
|
|
#
|
|
# It also requires the 'compface' utility.
|
|
#
|
|
|
|
sub check_for_help {
|
|
local($param) = @_;
|
|
|
|
# is a filter, no args must be present
|
|
if (defined($param))
|
|
{
|
|
print "\n", 'gif2xface -- A filter for converting an 48x48 gif into a xface string', "\n\n" ;
|
|
print 'Usage: gif2xface < input.gif > output.xface', "\n\n";
|
|
exit;
|
|
}
|
|
}
|
|
|
|
sub reverse_byte {
|
|
local($byte) = @_;
|
|
local($n, $b);
|
|
for ( $b= $n= 0; $b<8; ++$b) {
|
|
$n |= (($byte & 1) << (7-$b));
|
|
$byte >>= 1;
|
|
}
|
|
return($n);
|
|
}
|
|
|
|
|
|
&check_for_help($ARGV[0]);
|
|
|
|
# printf "0x%02x\n", &reverse_byte(0xF0);
|
|
|
|
$ra = rand;
|
|
$tf = "/tmp/gif2xface.$ra";
|
|
open(GP,"|giftopnm|pbmtoxbm>$tf");
|
|
|
|
while (<>) {
|
|
print GP $_;
|
|
}
|
|
close(GP);
|
|
open(GP,"<$tf");
|
|
<GP>;
|
|
m/^#define \w+_width (\d+)/ && ($width=$1);
|
|
<GP>;
|
|
m/^#define \w+_height (\d+)/ && ($height=$1);
|
|
<GP>;
|
|
m/^static.* = \{/ && (( $width == 48 && $height == 48 )
|
|
|| die $0, ": sorry, xfaces must be 48x48 pixels" );
|
|
|
|
$| = 1; print "X-Face:";
|
|
|
|
open(CF,"|compface");
|
|
|
|
while (<GP>) {
|
|
$st="";
|
|
while (s/(0x..)(,|\};)\s*//) {
|
|
$st .= sprintf("0x%02x, ", &reverse_byte(eval($1)));
|
|
}
|
|
$_=$st;
|
|
s/(0x..), 0x(..)/\1\2/g;
|
|
s/\s*(0x...., 0x...., 0x....)(,|\};)\s/\1,\n/g;
|
|
print CF $_;
|
|
}
|
|
close (CF);
|
|
close (GP);
|
|
unlink $tf;
|