Beefy Boxes and Bandwidth Generously Provided by pair Networks
No such thing as a small change
 
PerlMonks  

comment on

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

What are some of your reactions to the change?

It's time to get rid of traditional regexes, as they are too limiting. Change is needed, and I think Larry Wall did a very good job with this redesign. When I first read the recent Apocalypse, I hated the <s and >s, because it was too html-like. When reading more, it becomes clear that it doable.

<before:> and <after:> puzzle me. I had a feeling they had to be the other way around, but even though this is just a change of perspective, that is even worse. Somehow I never had this problem with the punctuation-laden (?=) and (?<=).

The colon overloading I do not like. Colon will already be very important in Perl 6 as the abverbial colon and probably some other meanings, but in regexes it is used for too many things. :, ::, ::: and :::: should be words, in my opinion. I dislike m/:i foo/. It's confusing, and dictating m:i/foo/ would be better imho. Especially m:w/foo/ and m/:w foo/ being inequal is weird.

Being able to capture into variables simplifies a lot. I like that feature, and will probably use it quite a lot. You say you're concerned about speed, but my guess is that it will be faster than a loop, because more can be handled in the core. Perl 6 itself is expected to be faster than 5 too, so I don't think speed will be a problem.

Best thing is the introduction of closures and boolean expression assertions. Currently, they are available, but the feature is experimental, confusing and inconsistent.

I like the new regexes.

- Yes, I reinvent wheels.
- Spam: Visit eurotraQ.


In reply to Re: Apocalypse 5 and regexes by Juerd
in thread Apocalypse 5 and regexes by c-era

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 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? | Other CB clients
Other Users?
Others making s'mores by the fire in the courtyard of the Monastery: (7)
As of 2022-05-26 13:30 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    Do you prefer to work remotely?



    Results (93 votes). Check out past polls.

    Notices?