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package Acme::Pythonic::Functions; |
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use 5; |
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use warnings; |
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use strict; |
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####################################################################### |
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# Acme::Pythonic::Functions is Copyright (C) 2009-2012, Hauke Lubenow. |
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# |
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# This module is free software; you can redistribute it and/or modify it |
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# under the same terms as Perl 5.14.2. |
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# For more details, see the full text of the licenses in the directory |
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# LICENSES. The full text of the licenses can also be found in the |
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# documents 'perldoc perlgpl' and 'perldoc perlartistic' of the official |
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# Perl 5.14.2-distribution. In case of any contradictions, these |
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# 'perldoc'-texts are decisive. |
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# |
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# THIS PROGRAM IS DISTRIBUTED IN THE HOPE THAT IT WILL BE USEFUL, BUT |
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# WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED WARRANTY OF |
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# MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. |
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# FOR MORE DETAILS, SEE THE FULL TEXTS OF THE LICENSES IN THE DIRECTORY |
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# LICENSES AND IN THE 'PERLDOC'-TEXTS MENTIONED ABOVE. |
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####################################################################### |
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use Carp; |
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90
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1
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use Exporter; |
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2258
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our ($VERSION, @ISA, @EXPORT); |
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@ISA = qw(Exporter); |
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$VERSION = 0.38; |
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@EXPORT = qw(append endswith extend has_key insert isdigit isin isdir isfile len listdir lstrip lstrip2 oslistdir osname pront readfile remove replace rstrip rstrip2 startswith strip writefile); |
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36
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# Internal Functions |
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sub checkArgs { |
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0
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my ($nr, @vals) = @_; |
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0
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my $lenvals = @vals; |
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0
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if($lenvals != $nr) { |
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0
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my $name = (caller 1)[3]; |
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my @temp = split("::", $name); |
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$name = pop(@temp) . "()"; |
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0
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my $arg = "arguments"; |
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0
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if($nr == 1) { |
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$arg = "argument"; |
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} |
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56
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0
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croak "Error: Function '$name' takes exactly $nr $arg ($lenvals given),"; |
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} |
58
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} |
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60
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# print-Replacement-Function |
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62
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sub pront { |
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1
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if ($#_ == -1) { |
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@_ = (""); |
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} |
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0
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for (@_) { |
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print"$_\n" |
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} |
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} |
70
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71
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# String-Functions |
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73
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sub endswith { |
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75
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0
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1
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&checkArgs(2, @_); |
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77
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0
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0
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if ($_[0] =~ /\Q$_[1]\E$/) { |
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return 1; |
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} |
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else { |
81
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0
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return 0; |
82
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} |
83
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} |
84
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85
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86
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sub lstrip { |
87
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88
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0
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&checkArgs(1, @_); |
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90
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0
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my $a = $_[0]; |
91
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92
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0
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$a =~ s/^\s+//; |
93
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94
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0
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return $a; |
95
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} |
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97
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98
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sub isdigit { |
99
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100
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0
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1
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&checkArgs(1, @_); |
101
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102
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0
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0
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if($_[0] =~ /\D/) { |
103
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0
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return 0; |
104
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} |
105
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else { |
106
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0
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return 1; |
107
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} |
108
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} |
109
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110
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111
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sub lstrip2 { |
112
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113
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0
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0
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1
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&checkArgs(2, @_); |
114
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115
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0
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my ($a, $b) = @_; |
116
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117
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0
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0
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if($a !~ /^\Q$b\E/) { |
118
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0
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return $a; |
119
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} |
120
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121
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0
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0
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if (length($b) > length($a)) { |
122
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0
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return $a; |
123
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} |
124
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125
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0
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return substr($a, length($b)); |
126
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} |
127
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128
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129
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sub replace { |
130
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131
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0
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0
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1
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my $nrargs = @_; |
132
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133
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0
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0
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0
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if($nrargs < 3 || $nrargs > 4) { |
134
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0
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croak "Error: Function 'replace()' takes either 3 or 4 arguments ($nrargs given),"; |
135
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} |
136
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137
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0
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my $count = 0; |
138
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139
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0
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0
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if($nrargs == 4) { |
140
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0
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$count = pop(@_); |
141
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} |
142
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143
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0
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0
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unless (isdigit($count)) { |
144
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0
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carp "Warning: Argument 4 of function 'replace()' should be a number; assuming 0,"; |
145
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0
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$count = 0; |
146
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} |
147
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148
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0
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my ($all, $old, $new) = @_; |
149
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150
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0
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0
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if ($count == 0) { |
151
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0
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$all =~ s/\Q$old\E/$new/g; |
152
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0
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return $all; |
153
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} |
154
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155
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0
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for (1 .. $count) { |
156
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0
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$all =~ s/\Q$old\E/$new/; |
157
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} |
158
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159
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0
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return $all; |
160
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} |
161
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162
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163
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sub rstrip { |
164
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165
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0
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0
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1
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&checkArgs(1, @_); |
166
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167
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0
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my $a = $_[0]; |
168
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169
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0
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$a =~ s/\s+$//; |
170
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171
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0
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return $a; |
172
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} |
173
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174
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175
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sub rstrip2 { |
176
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177
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0
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0
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1
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&checkArgs(2, @_); |
178
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179
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0
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my ($a, $b) = @_; |
180
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181
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0
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0
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if($a !~ /\Q$b\E$/) { |
182
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0
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return $a; |
183
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} |
184
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185
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0
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0
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if (length($b) > length($a)) { |
186
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0
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return $a; |
187
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} |
188
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189
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0
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return substr($a, 0, length($a) - length($b)); |
190
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} |
191
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192
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193
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sub startswith { |
194
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195
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0
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0
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1
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&checkArgs(2, @_); |
196
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197
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0
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0
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if ($_[0] =~ /^\Q$_[1]\E/) { |
198
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0
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return 1; |
199
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} |
200
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else { |
201
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0
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return 0; |
202
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} |
203
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} |
204
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205
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206
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sub strip { |
207
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208
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0
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0
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1
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&checkArgs(1, @_); |
209
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210
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0
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my $a = $_[0]; |
211
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212
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0
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$a =~ s/^\s+//; |
213
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0
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$a =~ s/\s+$//; |
214
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215
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0
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return $a; |
216
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} |
217
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218
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# List-Functions |
219
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220
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|
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sub append { |
221
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222
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0
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0
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0
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1
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if($#_ < 1) { |
223
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0
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|
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|
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|
carp "Warning: Not enough arguments for 'append()',"; |
224
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|
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} |
225
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|
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226
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0
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return @_; |
227
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} |
228
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229
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|
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sub extend { |
230
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231
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0
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0
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0
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1
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|
if($#_ < 1) { |
232
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0
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|
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|
carp "Warning: Not enough arguments for 'extend()',"; |
233
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} |
234
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235
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0
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|
return @_; |
236
|
|
|
|
|
|
|
} |
237
|
|
|
|
|
|
|
|
238
|
|
|
|
|
|
|
|
239
|
|
|
|
|
|
|
sub insert { |
240
|
|
|
|
|
|
|
|
241
|
0
|
0
|
|
0
|
1
|
|
if($#_ < 1) { |
242
|
0
|
|
|
|
|
|
carp "Warning: Not enough arguments for 'insert()'; nothing inserted,"; |
243
|
0
|
|
|
|
|
|
return @_; |
244
|
|
|
|
|
|
|
} |
245
|
|
|
|
|
|
|
|
246
|
0
|
|
|
|
|
|
my $a = pop; |
247
|
0
|
|
|
|
|
|
my $b = pop; |
248
|
|
|
|
|
|
|
|
249
|
0
|
0
|
|
|
|
|
if($b =~ /\D/) { |
250
|
0
|
|
|
|
|
|
carp "Warning: Second argument for 'insert()' must be a number; nothing inserted,"; |
251
|
0
|
|
|
|
|
|
return @_; |
252
|
|
|
|
|
|
|
} |
253
|
|
|
|
|
|
|
|
254
|
0
|
|
|
|
|
|
my @c = @_; |
255
|
|
|
|
|
|
|
|
256
|
0
|
0
|
|
|
|
|
if ($b > $#c + 1) { |
257
|
0
|
|
|
|
|
|
carp "Warning: Position for 'insert()' beyond list; nothing inserted,"; |
258
|
0
|
|
|
|
|
|
return @_; |
259
|
|
|
|
|
|
|
} |
260
|
|
|
|
|
|
|
|
261
|
0
|
|
|
|
|
|
splice(@c, $b, 0, $a); |
262
|
|
|
|
|
|
|
|
263
|
0
|
|
|
|
|
|
return @c; |
264
|
|
|
|
|
|
|
} |
265
|
|
|
|
|
|
|
|
266
|
|
|
|
|
|
|
|
267
|
|
|
|
|
|
|
sub lenlist { |
268
|
0
|
|
|
0
|
0
|
|
return $#_ + 1; |
269
|
|
|
|
|
|
|
} |
270
|
|
|
|
|
|
|
|
271
|
|
|
|
|
|
|
|
272
|
|
|
|
|
|
|
sub remove { |
273
|
|
|
|
|
|
|
|
274
|
0
|
0
|
|
0
|
1
|
|
if($#_ < 1) { |
275
|
0
|
|
|
|
|
|
carp "Warning: Not enough arguments for 'remove()',"; |
276
|
0
|
|
|
|
|
|
return @_; |
277
|
|
|
|
|
|
|
} |
278
|
|
|
|
|
|
|
|
279
|
0
|
|
|
|
|
|
my $a = pop; |
280
|
|
|
|
|
|
|
|
281
|
0
|
|
|
|
|
|
my @b = @_; |
282
|
0
|
|
|
|
|
|
my $i; |
283
|
0
|
|
|
|
|
|
my $x = 0; |
284
|
|
|
|
|
|
|
|
285
|
0
|
|
|
|
|
|
for $i (0 .. $#_) { |
286
|
0
|
0
|
|
|
|
|
if ($_[$i] eq $a) { |
287
|
0
|
|
|
|
|
|
splice(@b, $i, 1); |
288
|
0
|
|
|
|
|
|
$x = 1; |
289
|
0
|
|
|
|
|
|
last; |
290
|
|
|
|
|
|
|
} |
291
|
|
|
|
|
|
|
} |
292
|
|
|
|
|
|
|
|
293
|
0
|
0
|
|
|
|
|
unless($x) { |
294
|
0
|
|
|
|
|
|
carp "Warning: Element to remove not found in list; nothing removed,"; |
295
|
|
|
|
|
|
|
} |
296
|
|
|
|
|
|
|
|
297
|
0
|
|
|
|
|
|
return @b; |
298
|
|
|
|
|
|
|
} |
299
|
|
|
|
|
|
|
|
300
|
|
|
|
|
|
|
# Hash-Functions |
301
|
|
|
|
|
|
|
|
302
|
|
|
|
|
|
|
sub has_key { |
303
|
|
|
|
|
|
|
|
304
|
0
|
0
|
0
|
0
|
1
|
|
if($#_ < 2 || $#_ % 2) { |
305
|
0
|
|
|
|
|
|
croak "Error: Unsuitable arguments to 'has_key()',"; |
306
|
|
|
|
|
|
|
} |
307
|
|
|
|
|
|
|
|
308
|
0
|
|
|
|
|
|
my $key = pop; |
309
|
0
|
|
|
|
|
|
my %hash = @_; |
310
|
|
|
|
|
|
|
|
311
|
0
|
0
|
|
|
|
|
if (exists $hash{$key}) { |
312
|
0
|
|
|
|
|
|
return 1; |
313
|
|
|
|
|
|
|
} |
314
|
|
|
|
|
|
|
else { |
315
|
0
|
|
|
|
|
|
return 0; |
316
|
|
|
|
|
|
|
} |
317
|
|
|
|
|
|
|
} |
318
|
|
|
|
|
|
|
|
319
|
|
|
|
|
|
|
|
320
|
|
|
|
|
|
|
# Functions for several datatypes |
321
|
|
|
|
|
|
|
|
322
|
|
|
|
|
|
|
sub isin { |
323
|
|
|
|
|
|
|
|
324
|
0
|
|
|
0
|
1
|
|
my $lenarg = @_; |
325
|
|
|
|
|
|
|
|
326
|
0
|
0
|
|
|
|
|
if ($lenarg < 3) { |
327
|
0
|
|
|
|
|
|
croak "Error: 'isin()' takes at least 3 arguments ($lenarg given),"; |
328
|
|
|
|
|
|
|
} |
329
|
|
|
|
|
|
|
|
330
|
0
|
|
|
|
|
|
my $mode = pop; |
331
|
|
|
|
|
|
|
|
332
|
0
|
0
|
0
|
|
|
|
if ($mode ne "s" && $mode ne "l" && $mode ne "h") { |
|
|
|
0
|
|
|
|
|
333
|
0
|
|
|
|
|
|
croak "Error: Last argument to 'isin()' must be 's', 'l' or 'h',"; |
334
|
|
|
|
|
|
|
} |
335
|
|
|
|
|
|
|
|
336
|
0
|
0
|
|
|
|
|
if ($mode eq "s") { |
337
|
|
|
|
|
|
|
|
338
|
0
|
0
|
|
|
|
|
if ($lenarg != 3) { |
339
|
0
|
|
|
|
|
|
croak "Error: 'isin()' in mode 's' takes exactly 3 arguments ($lenarg given),"; |
340
|
|
|
|
|
|
|
} |
341
|
|
|
|
|
|
|
|
342
|
0
|
0
|
|
|
|
|
if ($_[0] =~ m/\Q$_[1]\E/) { |
343
|
0
|
|
|
|
|
|
return 1; |
344
|
|
|
|
|
|
|
} |
345
|
0
|
|
|
|
|
|
return 0; |
346
|
|
|
|
|
|
|
} |
347
|
|
|
|
|
|
|
|
348
|
0
|
0
|
|
|
|
|
if ($mode eq "l") { |
349
|
0
|
|
|
|
|
|
my $a = pop; |
350
|
0
|
|
|
|
|
|
for (@_) { |
351
|
0
|
0
|
|
|
|
|
if ($_ eq $a) { |
352
|
0
|
|
|
|
|
|
return 1; |
353
|
|
|
|
|
|
|
} |
354
|
|
|
|
|
|
|
} |
355
|
0
|
|
|
|
|
|
return 0; |
356
|
|
|
|
|
|
|
} |
357
|
|
|
|
|
|
|
|
358
|
|
|
|
|
|
|
# Only mode 'h' is left by now. |
359
|
|
|
|
|
|
|
|
360
|
0
|
0
|
|
|
|
|
if ($lenarg % 2) { |
361
|
0
|
|
|
|
|
|
croak "Error: Unsuitable arguments to 'isin()' in 'h'-mode,"; |
362
|
|
|
|
|
|
|
} |
363
|
|
|
|
|
|
|
|
364
|
0
|
|
|
|
|
|
my $key = pop; |
365
|
0
|
|
|
|
|
|
my %hash = @_; |
366
|
|
|
|
|
|
|
|
367
|
0
|
0
|
|
|
|
|
if (exists $hash{$key}) { |
368
|
0
|
|
|
|
|
|
return 1; |
369
|
|
|
|
|
|
|
} |
370
|
|
|
|
|
|
|
else { |
371
|
0
|
|
|
|
|
|
return 0; |
372
|
|
|
|
|
|
|
} |
373
|
|
|
|
|
|
|
} |
374
|
|
|
|
|
|
|
|
375
|
|
|
|
|
|
|
sub len { |
376
|
|
|
|
|
|
|
|
377
|
0
|
|
|
0
|
1
|
|
my $lenarg = @_; |
378
|
|
|
|
|
|
|
|
379
|
0
|
0
|
|
|
|
|
if ($lenarg < 2) { |
380
|
0
|
|
|
|
|
|
croak "Error: 'len()' takes at least 2 arguments ($lenarg given),"; |
381
|
|
|
|
|
|
|
} |
382
|
|
|
|
|
|
|
|
383
|
0
|
|
|
|
|
|
my $mode = pop; |
384
|
|
|
|
|
|
|
|
385
|
0
|
0
|
0
|
|
|
|
if ($mode ne "s" && $mode ne "l" && $mode ne "h") { |
|
|
|
0
|
|
|
|
|
386
|
0
|
|
|
|
|
|
croak "Error: Last argument to 'len()' must be 's', 'l' or 'h',"; |
387
|
|
|
|
|
|
|
} |
388
|
|
|
|
|
|
|
|
389
|
0
|
0
|
|
|
|
|
if ($mode eq "s") { |
390
|
|
|
|
|
|
|
|
391
|
0
|
0
|
|
|
|
|
if ($lenarg != 2) { |
392
|
0
|
|
|
|
|
|
croak "Error: 'len()' in mode 's' takes exactly 2 arguments ($lenarg given),"; |
393
|
|
|
|
|
|
|
} |
394
|
|
|
|
|
|
|
|
395
|
0
|
|
|
|
|
|
return length($_[0]); |
396
|
|
|
|
|
|
|
} |
397
|
|
|
|
|
|
|
|
398
|
0
|
0
|
|
|
|
|
if ($mode eq "l") { |
399
|
0
|
|
|
|
|
|
return $lenarg - 1; |
400
|
|
|
|
|
|
|
} |
401
|
|
|
|
|
|
|
|
402
|
|
|
|
|
|
|
# Only mode 'h' is left by now. |
403
|
|
|
|
|
|
|
|
404
|
0
|
0
|
|
|
|
|
if (! $lenarg % 2) { |
405
|
0
|
|
|
|
|
|
croak "Error: Unsuitable arguments to 'isin()' in 'h'-mode,"; |
406
|
|
|
|
|
|
|
} |
407
|
|
|
|
|
|
|
|
408
|
0
|
|
|
|
|
|
return ($lenarg - 1) / 2; |
409
|
|
|
|
|
|
|
} |
410
|
|
|
|
|
|
|
|
411
|
|
|
|
|
|
|
|
412
|
|
|
|
|
|
|
# File-related-Functions |
413
|
|
|
|
|
|
|
|
414
|
|
|
|
|
|
|
sub isdir { |
415
|
|
|
|
|
|
|
|
416
|
0
|
|
|
0
|
1
|
|
&checkArgs(1, @_); |
417
|
|
|
|
|
|
|
|
418
|
0
|
0
|
|
|
|
|
if(-d $_[0]) { |
419
|
0
|
|
|
|
|
|
return 1; |
420
|
|
|
|
|
|
|
} |
421
|
|
|
|
|
|
|
else { |
422
|
0
|
|
|
|
|
|
return 0; |
423
|
|
|
|
|
|
|
} |
424
|
|
|
|
|
|
|
} |
425
|
|
|
|
|
|
|
|
426
|
|
|
|
|
|
|
sub isfile { |
427
|
|
|
|
|
|
|
|
428
|
0
|
|
|
0
|
1
|
|
&checkArgs(1, @_); |
429
|
|
|
|
|
|
|
|
430
|
0
|
0
|
|
|
|
|
if(-f $_[0]) { |
431
|
0
|
|
|
|
|
|
return 1; |
432
|
|
|
|
|
|
|
} |
433
|
|
|
|
|
|
|
else { |
434
|
0
|
|
|
|
|
|
return 0; |
435
|
|
|
|
|
|
|
} |
436
|
|
|
|
|
|
|
} |
437
|
|
|
|
|
|
|
|
438
|
|
|
|
|
|
|
sub readfile { |
439
|
|
|
|
|
|
|
|
440
|
0
|
|
|
0
|
1
|
|
&checkArgs(1, @_); |
441
|
|
|
|
|
|
|
|
442
|
0
|
|
|
|
|
|
my $file = shift; |
443
|
|
|
|
|
|
|
|
444
|
0
|
0
|
|
|
|
|
open(FH, "<$file") or croak "Error reading file '$file',"; |
445
|
0
|
|
|
|
|
|
my @a = ; # Gulp ! |
446
|
0
|
|
|
|
|
|
close(FH); |
447
|
|
|
|
|
|
|
|
448
|
0
|
|
|
|
|
|
return @a; |
449
|
|
|
|
|
|
|
} |
450
|
|
|
|
|
|
|
|
451
|
|
|
|
|
|
|
|
452
|
|
|
|
|
|
|
sub writefile { |
453
|
|
|
|
|
|
|
|
454
|
0
|
0
|
|
0
|
1
|
|
if($#_ < 1) { |
455
|
0
|
|
|
|
|
|
croak "Error: Function 'writefile()' needs a list to write to a file as an argument,"; |
456
|
|
|
|
|
|
|
} |
457
|
|
|
|
|
|
|
|
458
|
0
|
|
|
|
|
|
my ($file, @a) = @_; |
459
|
|
|
|
|
|
|
|
460
|
0
|
0
|
|
|
|
|
open(FH, ">$file") or croak "Error writing to file '$file',"; |
461
|
|
|
|
|
|
|
|
462
|
0
|
|
|
|
|
|
print(FH @a); |
463
|
|
|
|
|
|
|
|
464
|
0
|
|
|
|
|
|
close(FH); |
465
|
|
|
|
|
|
|
} |
466
|
|
|
|
|
|
|
|
467
|
|
|
|
|
|
|
sub listdir { |
468
|
|
|
|
|
|
|
|
469
|
0
|
|
|
0
|
1
|
|
&checkArgs(1, @_); |
470
|
|
|
|
|
|
|
|
471
|
0
|
|
|
|
|
|
my $dir = shift; |
472
|
0
|
0
|
|
|
|
|
if (! -d $dir) { |
473
|
0
|
|
|
|
|
|
croak "Error: No such directory: '$dir',"; |
474
|
|
|
|
|
|
|
} |
475
|
0
|
|
|
|
|
|
my $filename; |
476
|
0
|
|
|
|
|
|
my @files = (); |
477
|
0
|
0
|
|
|
|
|
opendir (DIR, $dir) || croak "Error opening directory '$dir',"; |
478
|
0
|
|
|
|
|
|
while(($filename = readdir(DIR))){ |
479
|
0
|
0
|
0
|
|
|
|
if ($filename ne "." && $filename ne "..") { |
480
|
0
|
|
|
|
|
|
push(@files, "$filename"); |
481
|
|
|
|
|
|
|
} |
482
|
|
|
|
|
|
|
} |
483
|
0
|
|
|
|
|
|
return @files; |
484
|
|
|
|
|
|
|
} |
485
|
|
|
|
|
|
|
|
486
|
|
|
|
|
|
|
sub oslistdir { |
487
|
0
|
|
|
0
|
1
|
|
return listdir(@_); |
488
|
|
|
|
|
|
|
} |
489
|
|
|
|
|
|
|
|
490
|
|
|
|
|
|
|
|
491
|
|
|
|
|
|
|
# System-related-Functions |
492
|
|
|
|
|
|
|
|
493
|
|
|
|
|
|
|
sub osname { |
494
|
|
|
|
|
|
|
|
495
|
0
|
|
|
0
|
1
|
|
&checkArgs(0); |
496
|
|
|
|
|
|
|
|
497
|
0
|
|
|
|
|
|
return $^O; |
498
|
|
|
|
|
|
|
} |
499
|
|
|
|
|
|
|
|
500
|
|
|
|
|
|
|
1; |
501
|
|
|
|
|
|
|
|
502
|
|
|
|
|
|
|
__END__ |