Beefy Boxes and Bandwidth Generously Provided by pair Networks
Clear questions and runnable code
get the best and fastest answer

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
Imagine a library of subs that are 'require'd in a bnch of files.

At the moment they are all global (ie in main::), but I want to move them to a namespace (say Util::) to avoide clashes etc.

But there's a lot of code that uses these and I don't want to have to touch every file, possibly breaking it.

So I want to define all the subs in a namespace, but for the next few months have the subs aliased to main:: as well. One at a time that's easy, but I would like to pull all the sub names from the package table and alias them all in one hit (or a loop).

I'm sure it's simple, I'm just not quite sure how to achieve it.

Update: I am thinking something like this:

sub foo::bar {print "bar\n";} %main:: = (%main::, %foo::); bar();
but that doesn't work... I'd also like to use * globs since they would be more efficient

Update 2:This works:

sub foo::bar {print "bar\n";} foreach $name (keys %foo::) { $main::{$name} = $foo::{$name}; } bar();
But i'm sure it's not efficient for a lot of symbols...

In reply to How to alias a whole namespace to another namespace (in this case main::) by aufflick

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or or How to display code and escape characters are good places to start.
Log In?

What's my password?
Create A New User
Domain Nodelet?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others pondering the Monastery: (1)
As of 2021-10-17 20:35 GMT
Find Nodes?
    Voting Booth?
    My first memorable Perl project was:

    Results (72 votes). Check out past polls.