July 2013
Intermediate to advanced
370 pages
8h 27m
English
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19.3 Types of DSLs
When designing a DSL, we have to decide between two types—external and internal.
An external DSL
defines a new language. We have the flexibility to choose the syntax. We then parse the commands in our
new language to take actions. When I started my first job, the company asked me to maintain a DSL that needed
extensive use of lex and yacc. (I first thought they asked me to do it because I was good. I later understood they don’t ask new employees to do stuff because they’re good, but rather because no one else wants to do it!) The parsing was a lot of “fun.” We can use languages such as C++ and Java, and the support of extensive parsing capabilities and libraries, to do the heavy lifting for us. For example, we can use ...
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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.