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|
#!/usr/bin/perl
use strict;
use warnings;
use File::Slurp qw( slurp );
use Getopt::Long;
use POSIX qw( strftime );
use Text::Balanced qw( extract_bracketed );
use YAML qw( LoadFile );
GetOptions(
'timestamp|t=s' => \(my $TIMESTAMP = "%Y/%m/%d %H:%M:%S"),
'theme=s' => \(my $THEME = "../circle-fe-term/share/circle-fe-term.theme"), # TODO
) or exit 1;
my $filename = shift @ARGV; defined $filename or die "Require a filename\n";
my %theme;
{
foreach ( slurp $THEME ) {
next unless m/^(.*?)=(.*)$/;
$theme{$1} = $2;
}
}
my $events = LoadFile( $filename );
foreach my $ev ( @$events ) {
my ( $type, $time, $args ) = @$ev;
my $timestamp = strftime $TIMESTAMP, localtime $time;
my $template = $theme{$type} or (print "<<unrecognised event $type>>\n"), next;
my $text = process( $template, $args );
print "$timestamp: $text\n";
}
sub process
{
my ( $template, $args ) = @_;
my $ret = "";
while( length $template ) {
if( $template =~ s/^\$(\w+)// ) {
my $val = $args->{$1};
my @parts = ref $val eq "ARRAY" ? @$val : ( $val );
foreach my $part ( @parts ) {
$ret .= ref $part eq "ARRAY" ? $part->[0] : $part;
}
}
elsif( $template =~ m/^{/ ) {
my $piece = extract_bracketed( $template, "{}" );
s/^{//, s/}$// for $piece;
my ( $code, $content ) = split( m/ /, $piece, 2 );
$ret .= process( $content, $args );
}
else {
$template =~ s/^([^\$\{]+)//;
$ret .= $1;
}
}
return $ret;
}
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