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#!/usr/bin/env perl
# $Id: add-extent.pl,v 1.3 2003/08/25 11:50:33 yto Exp $
# HTML img width height
use strict;
use File::Copy;
# identify ư
my $IDENTIFY = `which identify`;
die "NO identify!" unless ($IDENTIFY =~ /identify$/);
chomp $IDENTIFY;
if (@ARGV == 0) {
print << "USAGE";
usage: prog <file> [file]...
USAGE
;
} else {
for my $fname (@ARGV) {
# HTML ե쵤ɤ߹
open(IN, $fname) or die;
my $all = join('', <IN>);
close(IN);
# cache ե
my $cfn = $fname;
$cfn =~ s!/[^/]*$!!; # ѥ
$cfn .= "/cache_extent-info";
my %file_info;
my $file_info_update_flag = 0;
if (open(F, $cfn)) {
while(<F>) {
next if (/^\#/ or /^\s*$/);
my @c = split(/\s/);
if (@c == 3) {
$file_info{$c[0]} = [@c[1..2]];
}
}
close(F);
}
# img ʬ
my @con = split(/(<img.+?>)/ims, $all);
next if (scalar(@con) == 1); # img ̵եϲ⤷ʤ
my $num = 0;
for (my $i = 0; $i < @con; $i++) {
if ($con[$i] =~ /^(<img.+?>)/ims) {
my $in = $1;
# width height ξꤵƤϲ⤷ʤ
next if ($in =~ /\W((width|height)\W.+?\W){2}/i); # ad hoc
# width or height ä
$con[$i] =~ s/\s+(width|height)=[^\s]+//gims;
# ե̾Ф
die unless ($in =~ /\ssrc="?(\S+?)"?[\s>]/i);
my $imgfn = $1;
# identify width height
next unless (-e $imgfn);
my ($w, $h);
if (defined $file_info{$imgfn}) {
($w, $h) = @{$file_info{$imgfn}};
} else {
($w, $h) = (`$IDENTIFY $imgfn` =~ /(\d+)x(\d+)/);
$file_info{$imgfn} = [$w, $h];
$file_info_update_flag = 1;
# print join("----", @{$file_info{$imgfn}}),"\n";
}
die if $?;
# img width height ɲ
$con[$i] =~ s|>$| width="$w" height="$h">|ims;
$num++;
}
# cache եν
if ($file_info_update_flag and open(F, "> $cfn")) {
foreach my $f (sort keys %file_info) {
print F "$f @{$file_info{$f}}\n";
}
close(F);
}
}
next if ($num == 0); # ѹսʤ
# ѹս꤬ä顢ΥեƤ顢
copy($fname, "$fname.bak") or die;
open(OUT, "> $fname") or die;
print OUT join("", @con);
close(OUT);
}
}
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