December 2009
Intermediate to advanced
380 pages
9h 2m
English
Content preview from Language Implementation PatternsBecome 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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Characterizing StringTemplate
ST is a dynamically typed, pure functional language with dynamic scoping and lazy evaluation. Those fancy terms highlight some important characteristics, so let’s define them:
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Dynamically typed: ST uses toString to convert attributes to string values. Since all Java objects answer this method, ST works with any Java object. Also, if you ask for property b of attribute a (with a.b), it’s up to you to make sure attribute a has that property at run-time. Python and Ruby programmers should feel very much at home.
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Pure functional: All expressions are side-effect free. There’s no direct way for ST to alter data values or data structures that we pass in. (Well, you could code a toString method to erase the hard drive, but ...
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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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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.