By Simon Cozens
With a global neighborhood of clients and greater than one million devoted programmers, Perl has confirmed to be the best language for the most recent tendencies in computing and business.
Every programmer needs to stay alongside of the most recent instruments and strategies. This up-to-date model of Advanced Perl Programming from O'Reilly can provide the basic wisdom of the trendy Perl programmer. no matter what your present point of Perl services, this booklet may also help you push your talents to the subsequent point and turn into a extra finished programmer.
O'Reilly's so much high-level Perl instructional up to now, Advanced Perl Programming, moment variation teaches you all of the advanced suggestions for production-ready Perl courses. This thoroughly up to date consultant truly explains ideas corresponding to introspection, overriding built-ins, extending Perl's object-oriented version, and trying out your code for higher stability.
Other themes include:
* advanced information constructions
* Templating toolkits
* operating with ordinary language information
* interplay with C and different languages
moreover, this consultant demystifies as soon as advanced subject matters like object-relational mapping and event-based development-arming you with every thing you want to thoroughly improve your skills.
Praise for the second one Edition:
"Sometimes the largest hurdle to challenge fixing isn't the topic itself yet relatively the sheer variety of modules Perl offers. Advanced Perl Programming walks you thru Perl's TMTOWTDI ("There's a couple of technique to Do It") woodland, explaining and evaluating the simplest modules for every activity so that you can intelligently follow them in quite a few situations." --Rocco Caputo, lead developer of POE
"It has been stated that sufficiently complex Perl code is indistinguishable from magic. This publication of spells is going a ways to unlocking these secrets and techniques. It has the facility to remodel the main humble programmer right into a Perl wizard." --Andy Wardley
"The details right here isn't theoretical. It provides instruments and methods for fixing genuine difficulties cleanly and elegantly." --Curtis 'Ovid' Poe
" Advanced Perl Programming collects genuinely-earned wisdom from the superior programmers within the Perl group, and explains it in a fashion that even newbies can observe immediately." --chromatic, Editor of Perl.com
Read Online or Download Advanced Perl Programming (2nd Edition) PDF
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Extra info for Advanced Perl Programming (2nd Edition)
Normally a process retains the group and user ids of the invoking user. The basic notion of setuid and setgid features is to provide a way for programs to be executable by others but to perform functions which require access to resources private to themselves. The classic example of such a program is the password change program /bin/passwd. This program accepts a new password from the user, encrypts it and inserts the new password in the password file. In order to make this possible while at the same time protecting the password file from unauthorised access, the passwd program has its set-uid bit set and belongs to the super-user.
Ion to t h o manner in wh i c h I/O system calls are translated into h a r d war ere q LJest s . Th ~! nth e p r: 0 £~ ram sup p 0 r t f 8 C :i. ~; W h . i r: h a 11 ow users to ma k to? e f f i. r: J. 1 h P. lored. First I e x e n d model of a as d a a c ) Structure of the I/O System The pur p 0 S p () f t. i s t o p r 0 v i d fJ. a n i n t e r f dee b I:? t wee n pro 9 r a m5 and the com put e l' • S per i ph e r a I. d t:~ vic e s . The I / 0 5 Y s t e m map s t h Eo) f i 1 E~ ~ t. ~ () n t o t h e S p f!
Although direct system calls are not the most efficient method of performing input and output, they are nonetheless easy to use and quite adequate for simple applications. Standard Input and Standard Output Ordinarily, it is necessary for a file to be opened before it can be accessed; however, when a program begins execution, it will generally find that at least three files have already been opened for it. These files, open on file descriptors 0,1 and 2, are called, respectively, standard input, standard output, and standard error.
Advanced Perl Programming (2nd Edition) by Simon Cozens