--- nfo/perl/libs/libp.pm	2002/06/27 02:14:22	1.2
+++ nfo/perl/libs/libp.pm	2002/11/17 07:18:59	1.6
@@ -1,8 +1,20 @@
 #################################
 #
-#  $Id: libp.pm,v 1.2 2002/06/27 02:14:22 cvsjoko Exp $
+#  $Id: libp.pm,v 1.6 2002/11/17 07:18:59 joko Exp $
 #
 #  $Log: libp.pm,v $
+#  Revision 1.6  2002/11/17 07:18:59  joko
+#  + sub deep_copy
+#
+#  Revision 1.5  2002/10/27 18:34:28  joko
+#  + sub now
+#
+#  Revision 1.4  2002/08/16 19:06:39  cvsjoko
+#  + sub getDirList
+#
+#  Revision 1.3  2002/07/19 18:13:50  cvsjoko
+#  no message
+#
 #  Revision 1.2  2002/06/27 02:14:22  cvsjoko
 #  + stripHtml stripSpaces stripNewLines toReal
 #
@@ -17,11 +29,16 @@
 require Exporter;
 @ISA = qw( Exporter );
 @EXPORT = qw( 
-  Dumper 
-  md5 md5_hex md5_base64
-  ParseDate UnixDate
-  
-  stripHtml stripSpaces stripNewLines toReal 
+    Dumper
+    md5 md5_hex md5_base64
+    ParseDate UnixDate
+    strftime
+    stripHtml stripSpaces stripNewLines toReal trim
+    croak
+    array_getDifference
+    getDirList
+    now
+    deep_copy
 );
 
 use strict;
@@ -36,6 +53,14 @@
 require LWP::UserAgent;
 use HTML::PullParser;
 
+# $now_string = strftime "%a %b %e %H:%M:%S %Y", localtime;
+# see "perldoc -f localtime"
+use POSIX qw(strftime);
+
+use Carp;
+
+use DirHandle;
+
 
 ########################################
 
@@ -48,6 +73,11 @@
   return $text;
 }
 
+sub trim {
+  my $string = shift;
+  return stripSpaces($string);
+}
+
 sub stripNewLines {
   my $text = shift;
   #print "text: $text", "\n";
@@ -81,4 +111,122 @@
   return $result;
 }
 
+sub array_getRelations {
+  my $a_ref = shift;
+  my $b_ref = shift;
+  my @a = @{$a_ref};
+  my @b = @{$b_ref};
+
+  my @isect = my @diff = my @union = ();
+  my $e;
+  my %count;
+  
+  foreach $e (@a, @b) { $count{$e}++ }
+
+  foreach $e (keys %count) {
+      push(@union, $e);
+      push @{ $count{$e} == 2 ? \@isect : \@diff }, $e;
+  }
+  
+  my $result = {
+    union => \@union,
+    isect => \@isect,
+    diff => \@diff,
+  };
+
+}
+
+sub array_getDifference {
+  my $res = array_getRelations(shift, shift);
+  return $res->{diff};
+}
+
+
+# =============================================
+# "global" vars used in directory-recursive-parsing
+my $dirlist_buf;
+my @dirlist_path;
+my $dirlist_base;
+
+sub entry_callback {
+
+  my $entry = shift;
+
+  # CHECKS
+  # dont't use this:
+  if ($entry eq '.' || $entry eq '..') { return; }
+
+  # PREPARE
+  # prepare path to current entry
+  my $cur_entry = join('/', @dirlist_path, $entry);
+  # prepare path to current entry (absolute)
+  my $cur_entry_abs = join('/', $dirlist_base, @dirlist_path, $entry);
+
+  # ENTRY
+  # add current entry to buffer
+  $dirlist_buf .= $cur_entry . "\n";
+
+  # (SUB-)DIRECTORY
+  # check if current entry is a (sub-)directory ...
+  if (-d $cur_entry_abs) {
+    push @dirlist_path, $cur_entry;
+    # ... and parse this (recursion here!!!)
+    iterate_path($cur_entry_abs);
+    pop @dirlist_path;
+  }
+}
+
+sub iterate_path {
+
+  my $path = shift;
+
+  # create new "DirHandle"-object
+  my $d = new DirHandle $path;
+  if (defined $d) {
+
+    # iterate through all entries in $path ($d->read) and call out entry-handler on each entry
+    while (defined(my $line = $d->read)) { 
+      entry_callback($line); 
+    }
+
+    undef $d;
+  }
+}
+
+sub getDirList {
+
+  $dirlist_base = shift;
+
+  # reset vars
+  $dirlist_buf = '';
+  @dirlist_path = ();
+
+  # start parsing file-structure
+  iterate_path($dirlist_base);
+
+  # return complete list of directory-content including files and subdirs
+  # entries are newline (\n) - seperated
+  return $dirlist_buf;
+
+}
+# =============================================
+
+
+sub now {
+  return strftime("%Y-%m-%d %H:%M:%S", localtime);
+}
+
+sub deep_copy {
+  my $this = shift;
+  if (not ref $this) {
+    $this;
+  } elsif (ref $this eq "ARRAY") {
+    [map deep_copy($_), @$this];
+  } elsif (ref $this eq "HASH") {
+    +{map { $_ => deep_copy($this->{$_}) } keys %$this};
+  } elsif (ref $this eq "CODE") {
+    $this;
+  } else { die "what type is $_?" }
+}
+
 1;