perl/libs/libp.pm

#################################
#
#  $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
#
#  Revision 1.1  2002/06/24 14:49:59  cvsjoko
#  + new
#
#
#################################

package libp;

use strict;
use warnings;

require Exporter;
our @ISA = qw( Exporter );
our @EXPORT_OK = qw( 
    Dumper
    md5 md5_hex md5_base64
    ParseDate UnixDate
    strftime
    stripHtml stripSpaces stripNewLines toReal trim
    croak
    array_getDifference
    getDirList
    now
    deep_copy
    getNewPerlObjectByPkgName
);

use Data::Dumper;
use Digest::MD5 qw(md5 md5_hex md5_base64);

$main::TZ = 'GMT';
use Date::Manip;

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;


########################################

sub stripSpaces {
  my $text = shift;
  #print "text: $text", "\n";
  #print "ord: ", ord(substr($text, 0, 1)), "\n";
  $text =~ s/^\s*//g;
  $text =~ s/\s*$//g;
  return $text;
}

sub trim {
  my $string = shift;
  return stripSpaces($string);
}

sub stripNewLines {
  my $text = shift;
  #print "text: $text", "\n";
  #print "ord: ", ord(substr($text, 0, 1)), "\n";
  $text =~ s/\n//g;
  #$text =~ s/\s*$//g;
  return $text;
}

sub toReal {
  my $string = shift;
  $string =~ m/(\d+\.*\d+)/;
  my $real = $1;
  return $real;
}

sub stripHtml {
  my $html = shift;
  my $result = '';
  #$html =~ s/<br>(.*)/ - ($1)/i;
  my $p = HTML::PullParser->new(
    doc => \$html,
    text => 'text',
    unbroken_text => 1,
  );
  while (my $token = $p->get_token()) {
    my $text = join('', @{$token});
    $result .= $text;
  }
  #$result =~ s/&nbsp;//g;
  return $result;
}


# =============================================
# "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);
}

# ACK's go to ...
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 $_?" }
}

sub getNewPerlObjectByPkgName {
  my $pkgname = shift;
  my $args = shift;
  #$logger->debug( __PACKAGE__ . "->getNewPerlObjectByPkgName( pkgname $pkgname args $args )" );
  my $evstring = "use $pkgname;";
  eval($evstring);
  #$@ && $logger->error( __PACKAGE__ . ':' . __LINE__ . " Error in eval $evstring: " .  $@ );
  $@ && print( __PACKAGE__ . ':' . __LINE__ . " Error in eval \"$evstring\": " .  $@ );
  return $pkgname->new($args);
}

1;
1	cvsjoko	1.1	#################################
2			#
3	joko	1.7	# $Id: libp.pm,v 1.6 2002/11/17 07:18:59 joko Exp $
4	cvsjoko	1.2	#
5			# $Log: libp.pm,v $
6	joko	1.7	# Revision 1.6 2002/11/17 07:18:59 joko
7			# + sub deep_copy
8			#
9	joko	1.6	# Revision 1.5 2002/10/27 18:34:28 joko
10			# + sub now
11			#
12	joko	1.5	# Revision 1.4 2002/08/16 19:06:39 cvsjoko
13			# + sub getDirList
14			#
15	cvsjoko	1.4	# Revision 1.3 2002/07/19 18:13:50 cvsjoko
16			# no message
17			#
18	cvsjoko	1.3	# Revision 1.2 2002/06/27 02:14:22 cvsjoko
19			# + stripHtml stripSpaces stripNewLines toReal
20			#
21	cvsjoko	1.2	# Revision 1.1 2002/06/24 14:49:59 cvsjoko
22			# + new
23	cvsjoko	1.1	#
24			#
25			#################################
26
27			package libp;
28
29	joko	1.7	use strict;
30			use warnings;
31
32	cvsjoko	1.1	require Exporter;
33	joko	1.7	our @ISA = qw( Exporter );
34			our @EXPORT_OK = qw(
35	cvsjoko	1.3	Dumper
36			md5 md5_hex md5_base64
37			ParseDate UnixDate
38			strftime
39			stripHtml stripSpaces stripNewLines toReal trim
40			croak
41			array_getDifference
42	cvsjoko	1.4	getDirList
43	joko	1.5	now
44	joko	1.6	deep_copy
45	joko	1.7	getNewPerlObjectByPkgName
46	cvsjoko	1.1	);
47
48			use Data::Dumper;
49			use Digest::MD5 qw(md5 md5_hex md5_base64);
50
51			$main::TZ = 'GMT';
52			use Date::Manip;
53	cvsjoko	1.2
54			require LWP::UserAgent;
55			use HTML::PullParser;
56
57	cvsjoko	1.3	# $now_string = strftime "%a %b %e %H:%M:%S %Y", localtime;
58			# see "perldoc -f localtime"
59			use POSIX qw(strftime);
60
61			use Carp;
62
63	cvsjoko	1.4	use DirHandle;
64
65	cvsjoko	1.2
66			########################################
67
68			sub stripSpaces {
69			my $text = shift;
70			#print "text: $text", "\n";
71			#print "ord: ", ord(substr($text, 0, 1)), "\n";
72			$text =~ s/^\s*//g;
73			$text =~ s/\s*$//g;
74			return $text;
75			}
76
77	cvsjoko	1.3	sub trim {
78			my $string = shift;
79			return stripSpaces($string);
80			}
81
82	cvsjoko	1.2	sub stripNewLines {
83			my $text = shift;
84			#print "text: $text", "\n";
85			#print "ord: ", ord(substr($text, 0, 1)), "\n";
86			$text =~ s/\n//g;
87			#$text =~ s/\s*$//g;
88			return $text;
89			}
90
91			sub toReal {
92			my $string = shift;
93			$string =~ m/(\d+\.*\d+)/;
94			my $real = $1;
95			return $real;
96			}
97
98			sub stripHtml {
99			my $html = shift;
100			my $result = '';
101			#$html =~ s/<br>(.*)/ - ($1)/i;
102			my $p = HTML::PullParser->new(
103			doc => \$html,
104			text => 'text',
105			unbroken_text => 1,
106			);
107			while (my $token = $p->get_token()) {
108			my $text = join('', @{$token});
109			$result .= $text;
110			}
111			#$result =~ s/ //g;
112			return $result;
113	cvsjoko	1.3	}
114
115
116	cvsjoko	1.4
117
118			# =============================================
119			# "global" vars used in directory-recursive-parsing
120			my $dirlist_buf;
121			my @dirlist_path;
122			my $dirlist_base;
123
124			sub entry_callback {
125
126			my $entry = shift;
127
128			# CHECKS
129			# dont't use this:
130			if ($entry eq '.' \|\| $entry eq '..') { return; }
131
132			# PREPARE
133			# prepare path to current entry
134			my $cur_entry = join('/', @dirlist_path, $entry);
135			# prepare path to current entry (absolute)
136			my $cur_entry_abs = join('/', $dirlist_base, @dirlist_path, $entry);
137
138			# ENTRY
139			# add current entry to buffer
140			$dirlist_buf .= $cur_entry . "\n";
141
142			# (SUB-)DIRECTORY
143			# check if current entry is a (sub-)directory ...
144			if (-d $cur_entry_abs) {
145			push @dirlist_path, $cur_entry;
146			# ... and parse this (recursion here!!!)
147			iterate_path($cur_entry_abs);
148			pop @dirlist_path;
149			}
150			}
151
152			sub iterate_path {
153
154			my $path = shift;
155
156			# create new "DirHandle"-object
157			my $d = new DirHandle $path;
158			if (defined $d) {
159
160			# iterate through all entries in $path ($d->read) and call out entry-handler on each entry
161			while (defined(my $line = $d->read)) {
162			entry_callback($line);
163			}
164
165			undef $d;
166			}
167			}
168
169			sub getDirList {
170
171			$dirlist_base = shift;
172
173			# reset vars
174			$dirlist_buf = '';
175			@dirlist_path = ();
176
177			# start parsing file-structure
178			iterate_path($dirlist_base);
179
180			# return complete list of directory-content including files and subdirs
181			# entries are newline (\n) - seperated
182			return $dirlist_buf;
183
184			}
185			# =============================================
186
187	joko	1.5
188			sub now {
189			return strftime("%Y-%m-%d %H:%M:%S", localtime);
190	joko	1.6	}
191
192	joko	1.7	# ACK's go to ...
193	joko	1.6	sub deep_copy {
194			my $this = shift;
195			if (not ref $this) {
196			$this;
197			} elsif (ref $this eq "ARRAY") {
198			[map deep_copy($_), @$this];
199			} elsif (ref $this eq "HASH") {
200			+{map { $_ => deep_copy($this->{$_}) } keys %$this};
201			} elsif (ref $this eq "CODE") {
202			$this;
203			} else { die "what type is $_?" }
204	joko	1.7	}
205
206			sub getNewPerlObjectByPkgName {
207			my $pkgname = shift;
208			my $args = shift;
209			#$logger->debug( __PACKAGE__ . "->getNewPerlObjectByPkgName( pkgname $pkgname args $args )" );
210			my $evstring = "use $pkgname;";
211			eval($evstring);
212			#$@ && $logger->error( __PACKAGE__ . ':' . __LINE__ . " Error in eval $evstring: " . $@ );
213			$@ && print( __PACKAGE__ . ':' . __LINE__ . " Error in eval \"$evstring\": " . $@ );
214			return $pkgname->new($args);
215	joko	1.5	}
216	cvsjoko	1.1
217			1;
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