


Module::Load(3p) Perl Programmers Reference GuideModule::Load(3p)


NAME
       Module::Load - runtime require of both modules and files

SYNOPSIS
               use Module::Load;

           my $module = 'Data:Dumper';
           load Data::Dumper;      # loads that module
           load 'Data::Dumper';    # ditto
           load $module            # tritto

           my $script = 'some/script.pl'
           load $script;
           load 'some/script.pl';      # use quotes because of punctuations

           load thing;             # try 'thing' first, then 'thing.pm'

           load CGI, ':standard'   # like 'use CGI qw[:standard]'

DESCRIPTION
       "load" eliminates the need to know whether you are trying
       to require either a file or a module.

       If you consult "perldoc -f require" you will see that
       "require" will behave differently when given a bareword or
       a string.

       In the case of a string, "require" assumes you are wanting
       to load a file. But in the case of a bareword, it assumes
       you mean a module.

       This gives nasty overhead when you are trying to
       dynamically require modules at runtime, since you will
       need to change the module notation ("Acme::Comment") to a
       file notation fitting the particular platform you are on.

       "load" eliminates the need for this overhead and will just
       DWYM.

Rules
       "load" has the following rules to decide what it thinks
       you want:

       o   If the argument has any characters in it other than
           those matching "\w", ":" or "'", it must be a file

       o   If the argument matches only "[\w:']", it must be a
           module

       o   If the argument matches only "\w", it could either be
           a module or a file. We will try to find "file" first
           in @INC and if that fails, we will try to find
           "file.pm" in @INC.  If both fail, we die with the
           respective error messages.



perl v5.10.1                2009-10-12                          1





Module::Load(3p) Perl Programmers Reference GuideModule::Load(3p)


Caveats
       Because of a bug in perl (#19213), at least in version
       5.6.1, we have to hardcode the path separator for a
       require on Win32 to be "/", like on Unix rather than the
       Win32 "\". Otherwise perl will not read its own %INC
       accurately double load files if they are required again,
       or in the worst case, core dump.

       "Module::Load" cannot do implicit imports, only explicit
       imports.  (in other words, you always have to specify
       explicitly what you wish to import from a module, even if
       the functions are in that modules' @EXPORT)

ACKNOWLEDGEMENTS
       Thanks to Jonas B. Nielsen for making explicit imports
       work.

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

AUTHOR
       This module by Jos Boumans <kane@cpan.org>.

COPYRIGHT
       This library is free software; you may redistribute and/or
       modify it under the same terms as Perl itself.






























perl v5.10.1                2009-10-12                          2


