November 2010
Intermediate to advanced
504 pages
12h 45m
English
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Working with Files
In addition to using streams to write to and read from the REPL, we can also use streams to write to and read from files.
You can create a file stream in Common Lisp in several ways. The best way is to use the with-open-file command. As you’ll see shortly, this command contains special bug-prevention features that make it safer to use than other available file commands. The following example uses with-open-file to write the string "my data" to a file named data.txt:
>(with-open-file (my-stream "data.txt" :direction :output)(print ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.