1Module::Load(3)       User Contributed Perl Documentation      Module::Load(3)
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NAME

6       Module::Load - runtime require of both modules and files
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SYNOPSIS

9               use Module::Load;
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11           my $module = 'Data:Dumper';
12           load Data::Dumper;      # loads that module
13           load 'Data::Dumper';    # ditto
14           load $module            # tritto
15
16           my $script = 'some/script.pl'
17           load $script;
18           load 'some/script.pl';      # use quotes because of punctuations
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20           load thing;             # try 'thing' first, then 'thing.pm'
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22           load CGI, ':standard'   # like 'use CGI qw[:standard]'
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DESCRIPTION

25       "load" eliminates the need to know whether you are trying to require
26       either a file or a module.
27
28       If you consult "perldoc -f require" you will see that "require" will
29       behave differently when given a bareword or a string.
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31       In the case of a string, "require" assumes you are wanting to load a
32       file. But in the case of a bareword, it assumes you mean a module.
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34       This gives nasty overhead when you are trying to dynamically require
35       modules at runtime, since you will need to change the module notation
36       ("Acme::Comment") to a file notation fitting the particular platform
37       you are on.
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39       "load" eliminates the need for this overhead and will just DWYM.
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Rules

42       "load" has the following rules to decide what it thinks you want:
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44       ·   If the argument has any characters in it other than those matching
45           "\w", ":" or "'", it must be a file
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47       ·   If the argument matches only "[\w:']", it must be a module
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49       ·   If the argument matches only "\w", it could either be a module or a
50           file. We will try to find "file.pm" first in @INC and if that
51           fails, we will try to find "file" in @INC.  If both fail, we die
52           with the respective error messages.
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Caveats

55       Because of a bug in perl (#19213), at least in version 5.6.1, we have
56       to hardcode the path separator for a require on Win32 to be "/", like
57       on Unix rather than the Win32 "\". Otherwise perl will not read its own
58       %INC accurately double load files if they are required again, or in the
59       worst case, core dump.
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61       "Module::Load" cannot do implicit imports, only explicit imports.  (in
62       other words, you always have to specify explicitly what you wish to
63       import from a module, even if the functions are in that modules'
64       @EXPORT)
65

ACKNOWLEDGEMENTS

67       Thanks to Jonas B. Nielsen for making explicit imports work.
68

BUG REPORTS

70       Please report bugs or other issues to <bug-module-load@rt.cpan.org<gt>.
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AUTHOR

73       This module by Jos Boumans <kane@cpan.org>.
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76       This library is free software; you may redistribute and/or modify it
77       under the same terms as Perl itself.
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81perl v5.16.3                      2013-02-01                   Module::Load(3)
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