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Re: Random Tips on Parse::RecDescent

by davistar (Initiate)
on Feb 02, 2006 at 19:39 UTC ( #527410=note: print w/replies, xml ) Need Help??

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  1. or download this
            <skip: qr/[ \t]*/> newline(0..) '<!--'
                ($text,$return) = main::parse_delimited($text,'<!--','-
                 $return = ['xcomment',$return];
  2. or download this
            <skip: qr/[ \t]*/> newline(0..) '/*'
                ($text,$return) = main::parse_delimited($text,'/*','*/');
                 $return = ['comment',$return];
  3. or download this
    #!/usr/bin/perl -w
    use strict;
  4. or download this
    Argument "/*" isn't numeric in addition (+) at C:/Perl/site/lib/Parse/ line 2783, <DATA> line 1.
    Use of uninitialized value in substitution (s///) at (eval 15)[C:/Perl
    +/site/lib/Parse/] line 22, <DATA> line 1.
    Use of uninitialized value in concatenation (.) or string at (eval 15)
    +[C:/Perl/site/lib/Parse/] line 23, <DATA> line 1.
    Use of uninitialized value in substitution (s///) at (eval 15)[C:/Perl
    +/site/lib/Parse/] line 23, <DATA> line 1.
    Use of uninitialized value in substitution (s///) at (eval 15)[C:/Perl
    +/site/lib/Parse/] line 23, <DATA> line 1.

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[ambrus]: Corion: well Prima::Object says something like that the cleanup method will send an onDestory message and that you can't get more messages after cleanup, or something.
[Corion]: ambrus: Yeah - I don't think the deep source dive will be necessary if things are implemented as simple as they could be :)) And hopefully I won't need (more) timely object destruction. I can update the screen at 60Hz and hopefully even do HTTP ...
[Corion]: ... transfers in the background. Now that I think about it, this maybe even means that I can run the OpenGL filters on Youtube input :)
[ambrus]: Corion: I mentioned that the unix event loop of Prima always wakes up at least once every 0.2 seconds. Have you found out whether the win32 event loop of Prima does that too?
[Corion]: ambrus: Hmm - I would assume that the onDestroy message is sent from the destructor and doesn't go through the messageloop, but maybe it is sent when a window gets destroyed but all components are still alive...
[ambrus]: Corion: partly deep source dive, partly just conservative coding even if it adds an overhead.
[Corion]: ambrus: Hmm - no, I haven't looked at wakeup intervals ... I wonder why it should want to wakeup periodically because it gets a lot of messages from the Windows message loop (on Windows obviously)
[ambrus]: (Alternately a deep source dive and then rewrite that event loop to make it better, and then as a bonus you get an idle method.)
[ambrus]: The 0.2 seconds wakeup is likely a workaround for some bug, but I can't guess what bug that is.
[ambrus]: It's been there since Prima 1.00 iirc

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