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Writing a REST Client in Perl
use REST::Client; use JSON; # Data::Dumper makes it easy to see what the JSON returned actually looks like
Contents Status of this document This document is mirrored on CPAN as CPAN /modules/04pause.html.
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List::MoreUtils
List::MoreUtils - Provide the stuff missing in List::Util use List :: MoreUtils qw ( any all none notall true false firstidx first_index lastidx last_index insert_after insert_after_string apply after after_incl before before_incl indexes firstval first_value lastval last_value each_array each_arrayref pairwise natatime mesh zip uniq minmax ); List::MoreUtils provides some trivial but commonly needed functionality on lists which is not going to go into List::Util . All of the below functions are implementable in only a couple of lines of Perl code. Using the functions from this module however should give slightly better performance as everything is implemented in C. The pure-Perl implementation of these functions only serves as a fallback in case the C portions of this module couldn't be compiled on this machine.List::Util
List::Util - A selection of general-utility list subroutines use List :: Util qw ( first max maxstr min minstr reduce shuffle sum ); List::Util contains a selection of subroutines that people have expressed would be nice to have in the perl core, but the usage would not really be high enough to warrant the use of a keyword, and the size so small such that being individual extensions would be wasteful. By default List::Util does not export any subroutines. The subroutines defined are first BLOCK LIST
Version 0.16. Cache::Memcahced::Fast is a Perl client for memcached , a memory cache daemon ( http://www.danga.com/memcached/ ). Module core is implemented in C and tries hard to minimize number of system calls and to avoid any key/value copying for speed. As a result, it has very low CPU consumption. API is largely compatible with Cache::Memcached , original pure Perl client, most users of the original module may start using this module by installing it and adding "::Fast" to the old name in their scripts (see "Compatibility with Cache::Memcached" below for full details).
Cache::Memcached::Fast
Getopt::Long
Getopt::Long - Extended processing of command line options use Getopt :: Long ; my $data = "file.dat" ; my $length = 24 ; my $verbose ; $result = GetOptions ( "length=i" => \ $length , "file=s" => \ $data , "verbose" => \ $verbose ); The Getopt::Long module implements an extended getopt function called GetOptions(). This function adheres to the POSIX syntax for command line options, with GNU extensions. In general, this means that options have long names instead of single letters, and are introduced with a double dash "--".
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functions A-Z
Perl does its own sprintf formatting: it emulates the C function sprintf(3), but doesn't use it except for floating-point numbers, and even then only standard modifiers are allowed. Non-standard extensions in your local sprintf(3) are therefore unavailable from Perl. Unlike printf , sprintf does not do what you probably mean when you pass it an array as your first argument. The array is given scalar context, and instead of using the 0th element of the array as the format, Perl will use the count of elements in the array as the format, which is almost never useful. Finally, for backward (and we do mean "backward") compatibility, Perl permits these unnecessary but widely-supported conversions: Note that the number of exponent digits in the scientific notation produced by %e , %E , %g and %G for numbers with the modulus of the exponent less than 100 is system-dependent: it may be three or less (zero-padded as necessary).
sprintf
So you want to get going in a hurry? To illustrate the use of SWIG, suppose you have some C functions you want added to Tcl, Perl, Python, Java and C#. Specifically, let's say you have them in a file 'example.c' /* File : example.c */ #include <time.h> double My_variable = 3.0; int fact(int n) { if (n <= 1) return 1; else return n*fact(n-1); } int my_mod(int x, int y) { return (x%y); } char *get_time() { time_t ltime; time(<ime); return ctime(<ime); } Interface file
