Beefy Boxes and Bandwidth Generously Provided by pair Networks
We don't bite newbies here... much
 
PerlMonks  

comment on

( [id://3333]=superdoc: print w/replies, xml ) Need Help??
My module doesn't care which YAML is around, just that it can Dump and Load.

I'd like to make it YAML module agnostic, as there are several out there.

There's YAML::Any, but that ships with YAML, and what if that's not installed? This works; but it ain't pretty:

use List::Util qw[ first ]; my $class = first { eval "use $_; 1" } qw[ YAML::XS YAML::Syck YAML::T +iny YAML];
Is there a more refined approach?

Thanks!

Update 1: fixed code to stop after the first successful load.
Update 2: code is even better now

Update 3: The code should be polite and use an already loaded module, if possible.

use List::Util qw[ first ]; use Class::Load qw[ load_first_existing_class is_class_loaded ]; my @CLASSES = qw[ YAML::Tiny YAML::XS YAML::Syck YAML ]; my $class = ( first { is_class_loaded $_ } @CLASSES ) || ( load_first_existing_class @CLASSES );

In reply to What's the best way to use Any YAML (not YAML::Any) by djerius

Title:
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 How to display code and escape characters are good places to start.
Log In?
Username:
Password:

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

How do I use this?Last hourOther CB clients
Other Users?
Others studying the Monastery: (3)
As of 2024-04-20 01:13 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found