Env::Export - Export environment variables as constant subroutines

Version: 0.20

WHAT IS IT

This module allows the user to specify one or more environment variables that
should be "exported" to the calling namespace as constant subroutines. By
doing this, their existence/inexistence can be detected at compile-time.


USING Env::Export

The difference is in how you detect the absence of the environment variable
you need:

    if (exists($ENV{PATH}) and ($ENV{PATH} =~ /.../))
    {
        # Do something
    }

versus:

    use Env::Export 'PATH';

    if (PATH =~ /.../)
    {
        # Do something
    }

The first form performs two tests, the first to ensure that the second does
not cause a "Use of unitialized value in regular expression" warning. The
second form only performs one test, but it also generates a compile-time
error if there was no environment variable "PATH" present.


BUILDING/INSTALLING

This package provides a Makefile.PL file as is typical of CPAN modules.
Building and installing is as easy as:

        perl Makefile.PL
        make
        make test
        # If tests pass
        make install

(The "make install" step may require super-user privileges.)


PROBLEMS/BUG REPORTS

Problems, bug reports, or suggestions for enhancements can be sent directly
to me, <rjray@blackperl.com>. Alternately, you can use the RT instance set
up for all CPAN-based distributions:

        http://rt.cpan.org/NoAuth/Bugs.html?Dist=Env-Export


CHANGES

* lib/Env/Export.pm
* t/15_no_redefine.t (deleted)
* t/20_regex.t (added)
* t/25_glob.t (added)
* t/30_prefix.t (added)
* t/40_all.t (added)
* t/50_warn.t (added)
* t/60_override.t (added)
* t/70_link.t (added)
* t/80_split.t (added)
* t/sub_count.pl (added)
Added extensive new features and loads more tests. Better       
overall model for how the args list is processed into a series  
of newly-defined functions. The keywords ":all",                
":prefix"/":noprefix", ":warn"/":nowarn",                       
":override"/":nooverride", ":link"/":nolink" and ":split" are   
now all implemented. Shell-style globbing patterns are          
acceptable as an alternative to regular expressions.            
Documentation extensively re-worked to cover all of this, and   
tests galore for all of these features.                         

* t/10_basic.t
* t/15_no_redefine.t
Bring tests more in line with nature of the module.