Give them a program that selects a bunch of files based on some
filtering criteria, and then does something to each file.
Kind of like find + xargs, but using haskell instead. Good recipe for sysadmins.
There was a recent example involving parsing raw emails into a thread here
http://groups.google.de/group/fa.haskell/browse_thread/thread/b80dc2836f63f270/4a020e087e5b2060?lnk=st&q=%22haskell+cafe%22+email+&rnum=3&hl=en#4a020e087e5b2060
Maybe that could be simplified and something could be based on that.
A one-liner using PCRE regex might also be of use.
2007/4/16, Simon Peyton-Jones <[EMAIL PROTECTED]>:
Friends
I have agreed to give a 3-hr tutorial on Haskell at the Open Source Convention
2007
http://conferences.oreillynet.com/os2007/
I'm quite excited about this: it is a great opportunity to expose Haskell to a
bunch of smart folk, many of whom won't know much about Haskell. My guess is
that they'll be Linux/Perl/Ruby types, and they'll be practitioners rather than
pointy-headed academics.
One possibility is to do a tutorial along the lines of "here's how to reverse a list",
"here's what a type is" etc; you know the kind of thing. But instead, I'd prefer to show
them programs that they might consider *useful* rather than cute, and introduce the language along
the way, as it were.
So this message is to ask you for your advice. Many of you are exactly the
kind of folk that come to OSCON --- except that you know Haskell. So help me
out:
Suggest concrete examples of programs that are
* small
* useful
* demonstrate Haskell's power
* preferably something that might be a bit
tricky in another language
For example, a possible unifying theme would be this:
http://haskell.org/haskellwiki/Simple_unix_tools
Another might be Don's cpu-scaling example
http://cgi.cse.unsw.edu.au/~dons/blog/2007/03/10
But there must be lots of others. For example, there are lots in the blog
entries that Don collects for the Haskell Weekly Newsletter. But I'd like to
use you as a filter: tell me your favourites, the examples you find compelling.
(It doesn't have to be *your* program... a URL to a great blog entry is just
fine.) Of course I'll give credit to the author.
Remember, the goal is _not_ "explain monads". It's "Haskell is a great way to Get
The Job Done".
Thanks!
Simon
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