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#! /usr/bin/env perl
use warnings;
use strict;
# for each filename on the command line
# get the modtime
# make a backup of the file
# - error if there is already a backup?
# flush the live version(?)
# start a line-by-line copy of the backup to the new file,
# doing the BeginDate/EndDate substitution
# <!-- #BeginDate format:En1m -->3-oct-11 18:20<!-- #EndDate -->
# <!-- #BeginDate format:En2m -->01-Aug-2011 17:56<!-- #EndDate -->
# without the 'm' no minutes are included.
my $i;
my $mod_time;
my $stamp;
my @m_abbr = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec);
foreach ( @ARGV ) {
$i = $_;
$mod_time = (stat ($i))[9];
$stamp = localtime($mod_time);
my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) =
localtime($mod_time);
$year += 1900;
# print "<$i> at <$stamp>\n";
open(my $IFILE, "<", $i) or die "Cannot open < $i: $!";
open(my $OFILE, ">", $i.".new") or die "Cannot open > $i.new: $!";
while(<$IFILE>) {
if (/(.*<!--\s*#BeginDate\s*format:)(\S*)(\s*-->).*(<!--\s*#EndDate\s*-->.*)/) {
# print "Got: $_";
# print "as: <$1><$2><$3>...<$4>\n";
print { $OFILE } $1,$2,$3;
printf { $OFILE } "%s-%s-%s %02d:%02d", $mday,$m_abbr[$mon],$year,$hour,$min;
print { $OFILE } $4,"\n";
}
else {
print { $OFILE } $_;
}
}
close($IFILE);
close($OFILE);
#
utime(time, $mod_time, "$i.new") || die "touch $i.new failed: $!";
#
rename $i,"$i.old" || die "rename $i,$i.old failed: $!";
rename "$i.new",$i || die "rename $i.new,$i failed: $!";
}
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