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    Perl Archive : TLC : Programming : Perl : Page 2
    Guide Search entire directory  this category
     
    Subcategories:

      mod_perl (16)
      tk (1)
     
    Links:   Pages: [<<] 1 2 3 4 5 6 [>>]

      Elements of Programming with Perl (Chapter 10)   

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    Date Published: 2002-10-22

    Regular expressions (singular regex or plural regexen) are a powerful device for general text processing. Perl's particular brand of regular expression language is more powerful and rich in features than almost any other flavor or regular expression. Unfortunately, this additional power comes with a price of additional complexity. In this chapter, we will examining Perl's regular expression language in some detail, starting with just the basics and moving on to discuss most of the features of the regex language in recent version of Perl.

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     (Added: Tue Oct 22 2002 Hits: 60 Rating: 0.00 Votes: 0)

      Elements of Programming with Perl (Chapter 1)   

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    Date Published: 2002-10-15

    Computers are mindless devices capable of doing what they are told. Before we talk about the activities of programming we need to have a basic understanding of what a program is and the role it plays in turning and expensive pieve of mindless hardware into a useful device.

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     (Added: Tue Oct 15 2002 Hits: 59 Rating: 0.00 Votes: 0)

      Graphics Programming with Perl (Chapter 4)   

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    Date Published: 2002-10-08

    Unless you already have all the graphics you will ever need, you have to create them; and if you already had everything you needed, you wouldn't be reading this book, so I assume that you do need to create some graphics yourself. This part of the book covers how to do this. Throughout the book you will find many ways in which to create graphics, such as charts, images for your web pages, or animations. In this particular chapter we'll have a look at the groundwork for most computer graphics generation: drawing.

    In the most basic sense, drawing graphics consists of the manipliation of certain drawing primitives, such as circles, reclangles, lines and text. No matter which drawing package you use, you will find the same, or very similar, primites, methods, and functions. All drawing packages also have in common an coordinate spae in which to work, and the objects and primitives you woth with are all expressed in terms of this coordinate space.

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     (Added: Tue Oct 08 2002 Hits: 81 Rating: 0.00 Votes: 0)

      Graphics Programming with Perl (Chapter 1)   

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    Date Published: 2002-09-17

    Because of Perl's gluing ability, there are several interfaces to graphics manipulation libraries and programs in the form of modules. Other packages have been written that make use of these modules to create graphics of a higher level, for example to create charts. Together, the number of these tools has grown sufficiently to allow the tackling of many graphics programming tasks in Perl.

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     (Added: Tue Sep 17 2002 Hits: 61 Rating: 0.00 Votes: 0)

      Demystifying CGI : Part 2. Types of Queries   

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    Date Published: 2002-09-14

    CGI queries generally come in two types, GET and POST.

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     (Added: Sat Sep 14 2002 Hits: 55 Rating: 0.00 Votes: 0)

      Demystifying CGI: Part 1 - Things to Know About CGI   

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    Date Published: 2002-09-14

    CGI stands for "Common Gateway Interface". It is the interface between a browser and a server that allows a browser to submit a dynamic request. CGI is not a language; specifically, it is not Perl. Most languages have some means for dealing with CGI requests, whether it be Perl, C, C++, sh, Tcl, Java, or Python. The generally accepted term for a program that deals with CGI is "CGI program" or "CGI script" -- boasting having written "a CGI" is a faux pas (unless, of course, you rewrote the protocol).

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     (Added: Sat Sep 14 2002 Hits: 60 Rating: 0.00 Votes: 0)

      Web Development with Apache and Perl (Chapter 6)   

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    Date Published: 2002-09-14

    It seems that every few months there are high-profile cases of credit card theft over the Internet: a popular site reports that its customer database was cracked, or a new exploit is discovered that lets a malicious application read inofrmation from browsers. As with the case in the physical realm, the bulk of crimes are low-profile and not reported to police. After a pleasant holiday season of shopping over the Web, strange charges turn up on a credit card , and the card holder calls their bank to have the charges removed and to get a new account number issued.

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     (Added: Sat Sep 14 2002 Hits: 120 Rating: 0.00 Votes: 0)

      Hash Slices   

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    Date Published: 2002-09-13

    The Challenge (as posted on comp.lang.perl.misc)

    I once posted to c.l.p.misc (comp.lang,perl.misc) this code and i asked what good is it?

      @array = qw( a b c d ) ;
    
      @array{ @array } = ( [ @array ] ) x @array ;
    

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     (Added: Fri Sep 13 2002 Hits: 85 Rating: 0.00 Votes: 0)

      Book Chapter : Perl Developer's Dictionary (Part 1 of 2)   

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    Date Published: 2002-08-28

    Understanding how to use regular expressions is fundamental to any Perl programmer. The essential purpose of a regular expression is to match a pattern, and Perl provides two operators for doing just that: m// (match) and s/// (substitute). (The ins and outs of those operators are covered in their own entries.)

    See Part 2

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     (Added: Wed Aug 28 2002 Hits: 53 Rating: 0.00 Votes: 0)

      Book Chapter : Perl Developer's Dictionary (Part 2 of 2)   

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    Date Published: 2002-08-28

    Anchors, Grouping, and Backreferences (See Part 1)

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     (Added: Wed Aug 28 2002 Hits: 53 Rating: 0.00 Votes: 0)

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