Beefy Boxes and Bandwidth Generously Provided by pair Networks
Don't ask to ask, just ask

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??

Wow. There needs to be a cheat sheet for this because every time it comes up I find mistakes, in this case my own. So my previous discovery that capturing parens cause the entire string to be copied is mostly not true. I assume the copy is required for s/// and s///g. Testing shows that otherwise the copy only happens for m// on modern perls (the 'scalar context' part doesn't appear to matter in my current testing) and doesn't even happen then with 5.6.

It is nice that I can stop fearing the performance impact of capturing parens when doing the usual scalar-context m/.../gc of a parser. Thanks!

- tye        

In reply to Re^4: Can we make $& better? (need) by tye
in thread Can we make $& better? by TedYoung

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?

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 chanting in the Monastery: (3)
As of 2023-05-28 13:47 GMT
Find Nodes?
    Voting Booth?

    No recent polls found