August 2014
Intermediate to advanced
120 pages
2h 45m
English
Content preview from Mastering Clojure MacrosBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Metaprogramming in Non-Lisps
Lisp certainly isn’t the only language family with metaprogramming facilities. C has a macro system that allows textual replacement as a preprocessing step at the start of compilation. C++ has a complex and powerful template metaprogramming feature that’s itself Turing-complete. Plenty of dynamic languages, like JavaScript, Python, and Ruby, have eval functions that acts on strings to produce a result. Ruby, in particular, has quite a few nice features, and Scala’s macro system even allows you to manipulate the parse tree! But here’s fair warning: once you’ve experienced Clojure’s macros, you may not want to go back.
You may notice that in this book, sometimes I’ll refer to Clojure, and sometimes to Lisp in general ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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