Perl's versatile split function
Oct 24, 2014 by David Farrell
Write elegant, simple code with split
Perl references: create, dereference and debug with confidence
Mar 27, 2014 by David Farrell
Learn enough to be dangerous with one of Perl’s most powerful features
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How to read a string into an array of characters using split
Oct 3, 2013 by David Farrell
Perl’s split function has a useful feature that will split a string into characters. This works by supplying an empty regex pattern ("//") to the split function. This can be used to easily split a word into an array of letters, for example:
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Perl for loops
Apr 12, 2013 by David Farrell
Perl’s for loops are a powerful feature that, like the rest of Perl can be as concise, flexible and versatile required. This article covers the core features for Perl’s for loops.
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List shortcuts: qw the quote whitespace operator
Apr 9, 2013 by David Farrell
A popular way to build a list of literal quotes in Perl is to use the quote whitespace operator (qw). It’s terse, versatile and elegant. To see why, let’s look at a typical statement using a list of strings:
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Perl arrays 101 - create, loop and manipulate
Apr 4, 2013 by David Farrell
Arrays in Perl contain an ordered list of values that can be accessed using built-in functions. They are one of the most useful data structures and frequently used in Perl programming.
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Upgrade your list printing using field separator variables
Apr 3, 2013 by David Farrell
A typical way to print every element of an array in Perl is using a foreach loop:
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Find the index of the last element in an array
Mar 28, 2013 by David Farrell
Most Perl programmers know that to find the size of an array, the array must called in a scalar context like this:
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Designing a Search Engine
Apr 10, 2001 by Pete Sergeant
A couple of months ago, I was approached by a company that I had done some work for previously, and was asked to build them a search engine to index about 200MB of HTML. However, some fairly strict rules…
