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package VNDB::Func;
use strict;
use warnings;
use Exporter 'import';
use POSIX 'strftime';
our @EXPORT = qw| shorten date datestr bb2html |;
# I would've done this as a #define if this was C...
sub shorten {
my($str, $len) = @_;
return length($str) > $len ? substr($str, 0, $len-3).'...' : $str;
}
# argument: unix timestamp
# return value: yyyy-mm-dd
# (maybe an idea to use cgit-style ages for recent timestamps)
sub date {
return strftime '%Y-%m-%d', gmtime shift;
}
# argument: database release date format (yyyymmdd)
# y = 0000 -> unkown
# y = 9999 -> TBA
# m = 99 -> month+day unkown
# d = 99 -> day unknown
# return value: (unknown|TBA|yyyy|yyyy-mm|yyyy-mm-dd)
# if date > now: <b class="future">str</b>
sub datestr {
my $date = sprintf '%08d', shift||0;
my $future = $date > strftime '%Y%m%d', gmtime;
my($y, $m, $d) = ($1, $2, $3) if $date =~ /^([0-9]{4})([0-9]{2})([0-9]{2})$/;
my $str = $y == 0 ? 'unknown' : $y == 9999 ? 'TBA' :
$m == 99 ? sprintf('%04d', $y) :
$d == 99 ? sprintf('%04d-%02d', $y, $m) :
sprintf('%04d-%02d-%02d', $y, $m, $d);
return $str if !$future;
return qq|<b class="future">$str</b>|;
}
# Arguments: input, and optionally the maximum length
# Parses:
# [url=..] [/url]
# [raw] .. [/raw]
# [spoiler] .. [/spoiler]
# v+, v+.+
# http://../
sub bb2html {
my $raw = shift;
my $maxlength = shift;
$raw =~ s/\r//g;
return '' if !$raw && $raw != 0;
my($result, $length, @open) = ('', 0, 'first');
my $e = sub {
local $_ = shift;
tr/A-Za-z/N-ZA-Mn-za-m/ if !@_ && grep /spoiler/, @open;
s/&/&/g;
s/>/>/g;
s/</</g;
s/\n/<br \/>/g if !$maxlength;
s/\n/ /g if $maxlength;
return $_;
};
for (split /(\s|\n|\[[^\]]+\])/, $raw) {
next if !defined $_;
my $lit = $_;
if($open[$#open] ne 'raw') {
if ($_ eq '[raw]') { push @open, 'raw'; next }
elsif ($_ eq '[spoiler]') { push @open, 'spoiler'; next }
elsif ($_ eq '[/spoiler]') { pop @open if $open[$#open] eq 'spoiler'; next }
elsif ($_ eq '[/url]') {
if($open[$#open] eq 'url') {
$result .= '</a>';
pop @open;
}
next;
} elsif(s{\[url=((https?://|/)[^\]>]+)\]}{<a href="$1" rel="nofollow">}i) {
$result .= $_;
push @open, 'url';
next;
} elsif(!grep(/url/, @open) &&
s{(.*)(http|https)://(.+[0-9a-zA-Z=/])(.*)}
{$e->($1).qq|<a href="$2://|.$e->($3, 1).'" rel="nofollow">'.$e->('link').'</a>'.$e->($4)}e) {
$length += 4;
last if $maxlength && $length > $maxlength;
$result .= $_;
next;
} elsif(!grep(/url/, @open) && (
s{^(.*[^\w]|)([tdvpr][1-9][0-9]*)\.([1-9][0-9]*)([^\w].*|)$}{$e->($1).qq|<a href="/$2.$3">$2.$3</a>|.$e->($4)}e ||
s{^(.*[^\w]|)([tduvpr][1-9][0-9]*)([^\w].*|)$}{$e->($1).qq|<a href="/$2">$2</a>|.$e->($3)}e)) {
$length += length $lit;
last if $maxlength && $length > $maxlength;
$result .= $_;
next;
}
} elsif($_ eq '[/raw]') {
pop @open if $open[$#open] eq 'raw';
next;
}
# normal text processing
$length += length $_;
last if $maxlength && $length > $maxlength;
$result .= $e->($_);
}
$result .= '</a>'
while((local $_ = pop @open) ne 'first');
$result .= '...' if $maxlength && $length > $maxlength;
return $result;
}
1;
|
