Description:
The Perl language in general.
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FAQ 4.17 How do I find yesterday's date?
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This is an excerpt from the latest version perlfaq4.pod, which comes with the standard Perl distribution. These postings aim to reduce the number of repeated questions as well as allow the community to review and update the answers. The latest version of the complete perlfaq is at [link] .... more »
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Perl RE bug with keys(%+)
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Maybe this is a bug, maybe not. I am using the named capture buffers to reduce bugs as I change grouping of my regular expressions over time. In a lexical analysis application, I'm using it over a series of alternations. my $re = qr/ (?<ALT1>pattern) | (?<ALT2>pattern) | ... One of the alternations happens to be nested:... more »
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perl hash: low-level implementation details?
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I've written a perl program that takes 3GB worth of key/value pairs ( each are numbers in the range of 0-60million ), and builds a hash with them. The hash itself seems to be taking more than 130GB ( linux 64-bit ) and counting--I had to kill the program b/c it was growing too large ( we have some 130Gb memory machines at our lab ).... more »
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FAQ 3.2 How can I use Perl interactively?
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This is an excerpt from the latest version perlfaq3.pod, which comes with the standard Perl distribution. These postings aim to reduce the number of repeated questions as well as allow the community to review and update the answers. The latest version of the complete perlfaq is at [link] .... more »
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How to find existence of a hash value.
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Hi all, I've a problem in CGI/PERL. I've a text box in my web page whose value is taken by the server written in CGI Script. The value of that text box is stored in an XML file for further use. My problem is that when I don't have any value in that text box and when CGI tries to print that value, it is printing the HASH... more »
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grab main window position
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Hi, I am on the process of creating my first perl/tkx application. I was wondering if there was a way to get the current window position on screen...so that I could save and when the application is launched again it'll position right there! this is what I have coded so far: ...use strict; use warnings;... more »
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first time using threads
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Hi, I'm stuck at thread as I've just starting using it. I would like to spawn (and detach) a thread which update a text label in a Tk window. The following is the code: ...use strict; use warnings; use Tkx; use threads; use threads::shared; my $k : shared = 0; my $mw = Tkx::widget->new("."); $mw->g_wm_title('Hello World!');... more »
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FAQ 4.34 How do I extract selected columns from a string?
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This is an excerpt from the latest version perlfaq4.pod, which comes with the standard Perl distribution. These postings aim to reduce the number of repeated questions as well as allow the community to review and update the answers. The latest version of the complete perlfaq is at [link] .... more »
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