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|
#! @im_path_perl@
################################################################
###
### imsort
###
### Copyright (C) 1997 Internet Message Group
###
### This Perl5 library conforms
### GNU GENERAL PUBLIC LICENSE Version 2.
###
###
### Author: Internet Message Group <img@mew.org>
### Created: Jul 2, 1997
### Revised: @im_revised@
###
my $VERSION = "imsort @im_version@";
$Prog = 'imsort';
##
## Require packages
##
use IM::Config;
use IM::Folder;
use IM::File;
use IM::Util;
use integer;
use strict;
use vars qw($Prog $EXPLANATION @OptConfig
$opt_field $opt_mode $opt_noharm $opt_src
$opt_verbose $opt_debug $opt_help);
##
## Environments
##
$EXPLANATION = "
$Prog :: Internet Message Sort
$VERSION
Usage: $Prog [options] +folder [msgs...]
";
@OptConfig = (
'src;F;;' => "Set source folder.",
'field;s;date;'=> "Sort by the specified field.",
'mode;s;date;' => "Set sort mode to date, num, text or ml.",
'noharm;b;;' => "Display the commands but do not actually execute them.",
'verbose;b;;' => 'With verbose messages.',
'debug;d;;' => "With debug message.",
'help;b;;' => "Show this message.",
);
##
## Profile and option processing
##
init_opt(\@OptConfig);
read_cfg();
read_opt(\@ARGV); # help?
help($EXPLANATION) && exit $EXIT_SUCCESS if $opt_help;
debug_option($opt_debug) if $opt_debug;
##
## Main
##
my @msgs = @ARGV;
@msgs = ('all') if (!@ARGV);
my $msgs = \@msgs;
$opt_src || im_die "no folder specified.\n";
@msgs || im_die "no message specified.\n";
$opt_field || im_die "no field specified.\n";
$opt_mode =~ /^(date|num|text|ml)$/
|| im_die "Wrong mode $opt_mode.\n";
#
# Set date relative magic values.
#
my @TBL = (0, 306, 337, 0, 31, 61, 92, 122, 153, 184, 214, 245, 275);
my %ZONE = ('PST', -8, 'PDT', -7, 'MST', -7, 'MDT', -6,
'CST', -6, 'CDT', -5, 'EST', -5, 'EDT', -4,
'AST', -4, 'NST', -3, 'UT' , +0, 'GMT', +0,
'BST', +1, 'MET', +1, 'EET', +2, 'JST', +9,);
my %MONTH = ('Jan', 1, 'Feb', 2, 'Mar', 3, 'Apr', 4,
'May', 5, 'Jun', 6, 'Jul', 7, 'Aug', 8,
'Sep', 9, 'Oct', 10, 'Nov', 11, 'Dec', 12);
sub rxp_or { join('|', @_); }
my $m_rxp = rxp_or(keys(%MONTH));
my $z_rxp = rxp_or(keys(%ZONE), '[-+]\d{4}');
#
# do it.
#
imsort($opt_src, $msgs, $opt_mode, $opt_field);
exit $EXIT_SUCCESS;
##################################################
##
## Work horse
##
sub imsort ($$$$) {
my ($src, $msgs, $mode, $field) = @_;
my ($i, $path, $from, $to, $tmp, @msg_paths, @sorted_index);
my @param = ();
my $HOLE_PATH = get_impath($src, 'new');
@msg_paths = get_impath($src, @{$msgs});
foreach $path (@msg_paths){
im_die "No file $path in $src. (Nothing was done.)\n"
if (!-f $path);
push(@param, get_field_value($path, $field, $mode));
}
if (($mode eq 'text') || ($mode eq 'ml')) {
@sorted_index = sort { $param[$a] cmp $param[$b] } 0 .. $#msg_paths;
} else {
@sorted_index = sort { $param[$a] <=> $param[$b] } 0 .. $#msg_paths;
}
$tmp = $#msg_paths + 1;
for $i (0 .. $#msg_paths) {
next if $i == $sorted_index[$i] or $sorted_index[$i] < 0;
$msg_paths[$tmp] = $HOLE_PATH;
$sorted_index[$tmp] = $i;
$to = $tmp;
do {
$from = $sorted_index[$to];
if ($sorted_index[$from] < 0) {
$from = $tmp;
}
$sorted_index[$to] = -1;
im_rename($msg_paths[$from], $msg_paths[$to]) || die;
} while ($to = $from) != $tmp;
$#msg_paths = $#sorted_index = $tmp - 1;
}
touch_folder($src) unless $opt_noharm;
}
sub get_field_value ($$$) {
my ($path, $field, $smode) = @_;
local $_;
local $/ = '';
my ($ml, $num);
if (open(MSG, "< $path")){
($_ = <MSG>) =~ s/\n\s+/ /g;
close(MSG);
} else {
im_die("Can't open $path. (Nothing was done.)\n");
}
($_) = /^$field:\s+([^\n]*)/imo;
if (lc($field) eq 'subject') {
if ($smode eq 'ml') {
s/^[\[\(]([^\]\)]*)[\]\)]\s*//i;
$1 =~ /^(.*)[:,\s](.*)$/; $ml=$1; $num=$2;
s/^(re:\s*)(.*)$/$2$1/i;
$_ = $ml . $_ . $num;
} else {
s/^(re:\s*)(.*)$/$2$1/i;
}
}
if ($smode eq 'num') {
m/(\d+)\D*$/;
$_ = $1;
}
if ($smode eq 'date'){
if (/(\d+)\s+($m_rxp)\s+(\d+)\s+(\d+):(\d+)(:(\d+))?\s+($z_rxp)/io){
return sec_from_epoc($3<100?$3+1900:$3, $MONTH{$2}, $1,
$4, $5, $7+0, $8);
}
return (stat($path))[9];
}
return $_;
}
sub sec_from_epoc ($$$$$$$) {
my ($y, $m, $d, $hh, $mm, $ss, $tz) = @_;
$tz = ($ZONE{$tz} || $tz / 100) * 3600;
$y-- if ($m < 3);
($y * 365 + int($y/4) - int($y/100) + int($y/400) + $TBL[$m] + $d - 719469)
* 86400 + $hh * 3600 + $mm * 60 + $ss - $tz;
}
### Local Variables:
### mode: perl
### End:
|
