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	<title>Comments for Jeroen van Doorn</title>
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	<lastBuildDate>Wed, 03 Nov 2010 10:31:15 +0000</lastBuildDate>
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		<title>Comment on Ruby method names ending with ? by Peter Bex</title>
		<link>http://www.jeroenvandoorn.nl/2010/11/ruby-method-names-ending-with/comment-page-1/#comment-79</link>
		<dc:creator>Peter Bex</dc:creator>
		<pubDate>Wed, 03 Nov 2010 10:31:15 +0000</pubDate>
		<guid isPermaLink="false">http://www.jeroenvandoorn.nl/?p=69#comment-79</guid>
		<description>Too bad. Have fun at the Efteling! I&#039;ll tell them you said hi :)</description>
		<content:encoded><![CDATA[<p>Too bad. Have fun at the Efteling! I&#8217;ll tell them you said hi <img src='http://www.jeroenvandoorn.nl/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /> </p>
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		<title>Comment on Ruby method names ending with ? by Jeroen van Doorn</title>
		<link>http://www.jeroenvandoorn.nl/2010/11/ruby-method-names-ending-with/comment-page-1/#comment-78</link>
		<dc:creator>Jeroen van Doorn</dc:creator>
		<pubDate>Wed, 03 Nov 2010 10:24:17 +0000</pubDate>
		<guid isPermaLink="false">http://www.jeroenvandoorn.nl/?p=69#comment-78</guid>
		<description>Thanks for the invite, but there is a &#039;Family Efteling&#039; weekend scheduled, so I&#039;m afraid I&#039;m not going to make it.

Please say hi to Eric and Ferry for me!</description>
		<content:encoded><![CDATA[<p>Thanks for the invite, but there is a &#8216;Family Efteling&#8217; weekend scheduled, so I&#8217;m afraid I&#8217;m not going to make it.</p>
<p>Please say hi to Eric and Ferry for me!</p>
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		<title>Comment on Ruby method names ending with ? by Peter Bex</title>
		<link>http://www.jeroenvandoorn.nl/2010/11/ruby-method-names-ending-with/comment-page-1/#comment-77</link>
		<dc:creator>Peter Bex</dc:creator>
		<pubDate>Wed, 03 Nov 2010 10:20:47 +0000</pubDate>
		<guid isPermaLink="false">http://www.jeroenvandoorn.nl/?p=69#comment-77</guid>
		<description>By the way, I&#039;m at T-DOSE in Eindhoven this weekend at a booth with the Chicken Scheme crew. And on Sunday, Eric and Ferry will hold a presentation about the Dacolt (formerly Renuda) Rails app you might remember we worked on together back in the day. It would be fun if you could also make it to the conference!</description>
		<content:encoded><![CDATA[<p>By the way, I&#8217;m at T-DOSE in Eindhoven this weekend at a booth with the Chicken Scheme crew. And on Sunday, Eric and Ferry will hold a presentation about the Dacolt (formerly Renuda) Rails app you might remember we worked on together back in the day. It would be fun if you could also make it to the conference!</p>
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		<title>Comment on Ruby method names ending with ? by Jeroen van Doorn</title>
		<link>http://www.jeroenvandoorn.nl/2010/11/ruby-method-names-ending-with/comment-page-1/#comment-76</link>
		<dc:creator>Jeroen van Doorn</dc:creator>
		<pubDate>Wed, 03 Nov 2010 10:17:14 +0000</pubDate>
		<guid isPermaLink="false">http://www.jeroenvandoorn.nl/?p=69#comment-76</guid>
		<description>Thank you for the &#039;Scheme&#039; insights and some more justification! I, of course, agree with you :)</description>
		<content:encoded><![CDATA[<p>Thank you for the &#8216;Scheme&#8217; insights and some more justification! I, of course, agree with you <img src='http://www.jeroenvandoorn.nl/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /> </p>
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		<title>Comment on Ruby method names ending with ? by Peter Bex</title>
		<link>http://www.jeroenvandoorn.nl/2010/11/ruby-method-names-ending-with/comment-page-1/#comment-75</link>
		<dc:creator>Peter Bex</dc:creator>
		<pubDate>Wed, 03 Nov 2010 08:33:11 +0000</pubDate>
		<guid isPermaLink="false">http://www.jeroenvandoorn.nl/?p=69#comment-75</guid>
		<description>I&#039;m a Schemer, so I can provide you with some perspective from &lt;em&gt;that&lt;/em&gt; community. In Scheme you can use any character in a procedure name, including a question mark (I think Ruby took its inspiration of question marks and bangs at the end of method names from Scheme&#039;s conventions), and there are some procedures like &quot;&lt;a href=&quot;http://www.schemers.org/Documents/Standards/R5RS/HTML/r5rs-Z-H-9.html#%_idx_432&quot; rel=&quot;nofollow&quot;&gt;member&lt;/a&gt;&quot; which are logically often used to check whether an element is a member of the list (as a boolean) but occasionally it is used to obtain the list tail which has the requested element at its head, and that&#039;s why it&#039;s not called &quot;member?&quot;.

There are also more bizarre questions like &quot;should the string equality procedure be called &lt;code&gt;string=&lt;/code&gt; or &lt;code&gt;string=?&lt;/code&gt;&quot; If it&#039;s a predicate it should be string=? (and it is). But then, why isn&#039;t the numeric comparison operator called &quot;=?&quot;? Of course because no sane person would write &quot;=?&quot;, but still, it &lt;strong&gt;is&lt;/strong&gt; an inconsistency :)

As for a justification: it&#039;s simple. You know what kind of output to expect from a question mark-method, and it would be a violation of the reader&#039;s expectations if you suddenly took the output of such a method and started using it as the key for a hash table! And you know people are going to do it (even if you warn them not to...), so you&#039;d better remove the question mark from the method if it doesn&#039;t return a strict boolean.</description>
		<content:encoded><![CDATA[<p>I&#8217;m a Schemer, so I can provide you with some perspective from <em>that</em> community. In Scheme you can use any character in a procedure name, including a question mark (I think Ruby took its inspiration of question marks and bangs at the end of method names from Scheme&#8217;s conventions), and there are some procedures like &#8220;<a href="http://www.schemers.org/Documents/Standards/R5RS/HTML/r5rs-Z-H-9.html#%_idx_432" rel="nofollow">member</a>&#8221; which are logically often used to check whether an element is a member of the list (as a boolean) but occasionally it is used to obtain the list tail which has the requested element at its head, and that&#8217;s why it&#8217;s not called &#8220;member?&#8221;.</p>
<p>There are also more bizarre questions like &#8220;should the string equality procedure be called <code>string=</code> or <code>string=?</code>&#8221; If it&#8217;s a predicate it should be string=? (and it is). But then, why isn&#8217;t the numeric comparison operator called &#8220;=?&#8221;? Of course because no sane person would write &#8220;=?&#8221;, but still, it <strong>is</strong> an inconsistency <img src='http://www.jeroenvandoorn.nl/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /> </p>
<p>As for a justification: it&#8217;s simple. You know what kind of output to expect from a question mark-method, and it would be a violation of the reader&#8217;s expectations if you suddenly took the output of such a method and started using it as the key for a hash table! And you know people are going to do it (even if you warn them not to&#8230;), so you&#8217;d better remove the question mark from the method if it doesn&#8217;t return a strict boolean.</p>
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		<title>Comment on Fantasy Books and simultaneous reading by Peter Bex</title>
		<link>http://www.jeroenvandoorn.nl/2010/10/fantasy-books-and-simultaneous-reading/comment-page-1/#comment-52</link>
		<dc:creator>Peter Bex</dc:creator>
		<pubDate>Wed, 20 Oct 2010 20:18:26 +0000</pubDate>
		<guid isPermaLink="false">http://www.jeroenvandoorn.nl/?p=57#comment-52</guid>
		<description>I generally prefer finishing a series, but if there&#039;s another book I want to read in between two sequels of course I do that too.

I don&#039;t really have anything on fantasy to recommend right now, sorry :)</description>
		<content:encoded><![CDATA[<p>I generally prefer finishing a series, but if there&#8217;s another book I want to read in between two sequels of course I do that too.</p>
<p>I don&#8217;t really have anything on fantasy to recommend right now, sorry <img src='http://www.jeroenvandoorn.nl/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /> </p>
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		<title>Comment on Fantasy Books and simultaneous reading by Jeroen van Doorn</title>
		<link>http://www.jeroenvandoorn.nl/2010/10/fantasy-books-and-simultaneous-reading/comment-page-1/#comment-51</link>
		<dc:creator>Jeroen van Doorn</dc:creator>
		<pubDate>Wed, 20 Oct 2010 18:04:52 +0000</pubDate>
		<guid isPermaLink="false">http://www.jeroenvandoorn.nl/?p=57#comment-51</guid>
		<description>Hi Peter!

I really enjoyed the 11th and 12th book of WoT! enjoy!!! I still have about 15 small fantasy pockets which I have to finish first and I also want to finish some other series :)

But thanks for the advice, any stuff on Fantasy series or is it just SF for you right now?

I&#039;m not really reading in different series at the same time, but I don&#039;t necessarily have to finish a series before I start another one or read a book in another series. I do also read technical books and novels at the same time, just like you.

Speak soon!</description>
		<content:encoded><![CDATA[<p>Hi Peter!</p>
<p>I really enjoyed the 11th and 12th book of WoT! enjoy!!! I still have about 15 small fantasy pockets which I have to finish first and I also want to finish some other series <img src='http://www.jeroenvandoorn.nl/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /> </p>
<p>But thanks for the advice, any stuff on Fantasy series or is it just SF for you right now?</p>
<p>I&#8217;m not really reading in different series at the same time, but I don&#8217;t necessarily have to finish a series before I start another one or read a book in another series. I do also read technical books and novels at the same time, just like you.</p>
<p>Speak soon!</p>
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		<title>Comment on Fantasy Books and simultaneous reading by Peter Bex</title>
		<link>http://www.jeroenvandoorn.nl/2010/10/fantasy-books-and-simultaneous-reading/comment-page-1/#comment-47</link>
		<dc:creator>Peter Bex</dc:creator>
		<pubDate>Mon, 18 Oct 2010 14:36:08 +0000</pubDate>
		<guid isPermaLink="false">http://www.jeroenvandoorn.nl/?p=57#comment-47</guid>
		<description>Oh, and as for the simultaneous reading, I don&#039;t do that :) I have a shitty memory and have trouble remembering what happened a couple chapters back in one book, let alone several :)

Of course while waiting for a sequal to come out (like WoT) I read other stuff but only ever one book at a time.  If I&#039;m reading a technical book I generally read that simultaneously with novels, though. There&#039;s not really much of a storyline to keep track of with those ;)</description>
		<content:encoded><![CDATA[<p>Oh, and as for the simultaneous reading, I don&#8217;t do that <img src='http://www.jeroenvandoorn.nl/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' />  I have a shitty memory and have trouble remembering what happened a couple chapters back in one book, let alone several <img src='http://www.jeroenvandoorn.nl/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /> </p>
<p>Of course while waiting for a sequal to come out (like WoT) I read other stuff but only ever one book at a time.  If I&#8217;m reading a technical book I generally read that simultaneously with novels, though. There&#8217;s not really much of a storyline to keep track of with those <img src='http://www.jeroenvandoorn.nl/wp-includes/images/smilies/icon_wink.gif' alt=';)' class='wp-smiley' /> </p>
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		<title>Comment on Fantasy Books and simultaneous reading by Peter Bex</title>
		<link>http://www.jeroenvandoorn.nl/2010/10/fantasy-books-and-simultaneous-reading/comment-page-1/#comment-46</link>
		<dc:creator>Peter Bex</dc:creator>
		<pubDate>Mon, 18 Oct 2010 14:33:37 +0000</pubDate>
		<guid isPermaLink="false">http://www.jeroenvandoorn.nl/?p=57#comment-46</guid>
		<description>Hey Jeroen!

I have been totally slacking off with my reading lately, but I&#039;ve just started picking it up again, with the eleventh WoT. I finished the prelude yesterday and it was great, so I have high hopes for the rest of the book!

Since you&#039;re getting into SciFi, I can really recommend the late Arthur C Clarke&#039;s writings. I&#039;ve only read a little he wrote, but so far it&#039;s been good; The Wind From the Sun which is a collection of short stories and Rendezvous with Rama, a full novel which has a few sequels too (but I don&#039;t think you can call it a proper series). If you&#039;d like to try his books, I can recommend starting with the short stories; they&#039;re all very short and diverse enough to keep your interest. He writes about various topics and his writing has that typical SciFi &quot;edge&quot; which I like so much, touching moral issues rather than only describing space battles ;) I&#039;m also considering reading 2001: A Space Oddyssey, but I already saw the film (which is truly breathtaking, if you take the time to view it and can stand the slow pace) so I&#039;m not yet sure if reading the book will add a lot.

I&#039;ve heard Isaac Asimov is fantasic, so I tried out &quot;Foundation&quot;, the first book in his series, but I actually found it very boring :( I might try a different book or series by him later.</description>
		<content:encoded><![CDATA[<p>Hey Jeroen!</p>
<p>I have been totally slacking off with my reading lately, but I&#8217;ve just started picking it up again, with the eleventh WoT. I finished the prelude yesterday and it was great, so I have high hopes for the rest of the book!</p>
<p>Since you&#8217;re getting into SciFi, I can really recommend the late Arthur C Clarke&#8217;s writings. I&#8217;ve only read a little he wrote, but so far it&#8217;s been good; The Wind From the Sun which is a collection of short stories and Rendezvous with Rama, a full novel which has a few sequels too (but I don&#8217;t think you can call it a proper series). If you&#8217;d like to try his books, I can recommend starting with the short stories; they&#8217;re all very short and diverse enough to keep your interest. He writes about various topics and his writing has that typical SciFi &#8220;edge&#8221; which I like so much, touching moral issues rather than only describing space battles <img src='http://www.jeroenvandoorn.nl/wp-includes/images/smilies/icon_wink.gif' alt=';)' class='wp-smiley' />  I&#8217;m also considering reading 2001: A Space Oddyssey, but I already saw the film (which is truly breathtaking, if you take the time to view it and can stand the slow pace) so I&#8217;m not yet sure if reading the book will add a lot.</p>
<p>I&#8217;ve heard Isaac Asimov is fantasic, so I tried out &#8220;Foundation&#8221;, the first book in his series, but I actually found it very boring <img src='http://www.jeroenvandoorn.nl/wp-includes/images/smilies/icon_sad.gif' alt=':(' class='wp-smiley' />  I might try a different book or series by him later.</p>
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		<title>Comment on Writing a blog is hard! by Jeroen van Doorn</title>
		<link>http://www.jeroenvandoorn.nl/2010/09/writing-a-blog-is-hard/comment-page-1/#comment-16</link>
		<dc:creator>Jeroen van Doorn</dc:creator>
		<pubDate>Wed, 29 Sep 2010 07:38:03 +0000</pubDate>
		<guid isPermaLink="false">http://www.jeroenvandoorn.nl/?p=14#comment-16</guid>
		<description>Yep ... finally :)</description>
		<content:encoded><![CDATA[<p>Yep &#8230; finally <img src='http://www.jeroenvandoorn.nl/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /> </p>
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