Perl source code comparison makes for good reading

Perliscope author traces style evolution

Good reading makes for good writing; literary authors know that, and we programmers need to take more advantage of the opportunities before us. Perl blogger Jose Rey offers a noteworthy illustration in his blog this week: seven different renderings of a common text-based guessing game, in different generations of Perl5. Even if your fluency with Perl is low, take the time to read and understand what's going on here; you'll get a lot of value from the exercise.

Note, by the way, that Perl was already (almost) seven years old when Perl5 appeared. Rey was wise to restrict himself to a manageable slice of the history of Perl style.

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