Programming Erlang, Second Edition (for Lorinda Hartzler) by Joe Armstrong

Author:Joe Armstrong
Language: eng
Format: epub
Tags: Pragmatic Bookshelf
ISBN: 978-1-937785-53-6
Publisher: The Pragmatic Bookshelf, LLC (448677)

Listing URLs from a File

Let’s write a simple function called urls2htmlFile(L, File) that takes a list of URLs, L, and creates an HTML file, where the URLs are presented as clickable links. This lets us play with the technique of creating an entire file in a single I/O operation. We’ll write our program in the module scavenge_urls. First here’s the program header:

scavenge_urls.erl

​ ​-module​(scavenge_urls).

​ ​-export​([urls2htmlFile/2, bin2urls/1]).

​ ​-import​(lists, [reverse/1, reverse/2, map/2]).

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