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	<title>Bill Greene's Weblog</title>
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	<link>http://bill2u.wordpress.com</link>
	<description>Thoughts on various subjects</description>
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		<title>Bill Greene's Weblog</title>
		<link>http://bill2u.wordpress.com</link>
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			<item>
		<title>The Big Rig</title>
		<link>http://bill2u.wordpress.com/2009/07/10/the-big-rig/</link>
		<comments>http://bill2u.wordpress.com/2009/07/10/the-big-rig/#comments</comments>
		<pubDate>Fri, 10 Jul 2009 06:00:37 +0000</pubDate>
		<dc:creator>Bill Greene</dc:creator>
				<category><![CDATA[Adaptive technology]]></category>
		<category><![CDATA[Assistive technology]]></category>
		<category><![CDATA[Head tracking]]></category>
		<category><![CDATA[Macintosh]]></category>
		<category><![CDATA[On-screen keyboards]]></category>
		<category><![CDATA[Speech recognition]]></category>
		<category><![CDATA[Word completion]]></category>

		<guid isPermaLink="false">http://bill2u.wordpress.com/?p=22</guid>
		<description><![CDATA[My Web site now has a new page entitled &#8220;The Big Rig: Accessible computer workstation for an unassisted quadriplegic user&#8221;, wherein I describe the computer system I put together for my wife.
Questions, suggestions and comments can be submitted to this blog.
Copyright © 2009 Possum Technologies, All Rights Reserved.
Posted in Adaptive technology Tagged: Adaptive technology, Assistive [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=bill2u.wordpress.com&blog=3479132&post=22&subd=bill2u&ref=&feed=1" />]]></description>
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		<slash:comments>10</slash:comments>
	
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		<item>
		<title>The tyranny of poor tools (1)</title>
		<link>http://bill2u.wordpress.com/2009/01/29/the-tyranny-of-poor-tools-1/</link>
		<comments>http://bill2u.wordpress.com/2009/01/29/the-tyranny-of-poor-tools-1/#comments</comments>
		<pubDate>Thu, 29 Jan 2009 06:07:46 +0000</pubDate>
		<dc:creator>Bill Greene</dc:creator>
				<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[best practices]]></category>
		<category><![CDATA[bizarro world]]></category>
		<category><![CDATA[dull tools]]></category>

		<guid isPermaLink="false">http://bill2u.wordpress.com/2009/01/29/the-tyranny-of-poor-tools-1/</guid>
		<description><![CDATA[I recently had the experience of checking in some changes to a source code file.  I had changed just a few lines, but my editor (Emacs) had, as I had instructed it to do, automatically removed the trailing whitespace from each line whenever I executed the &#8220;save-buffer&#8221; command.  Trailing spaces are worse than [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=bill2u.wordpress.com&blog=3479132&post=11&subd=bill2u&ref=&feed=1" />]]></description>
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		<slash:comments>0</slash:comments>
	
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		<title>Perverse genius</title>
		<link>http://bill2u.wordpress.com/2008/04/28/perverse-genius/</link>
		<comments>http://bill2u.wordpress.com/2008/04/28/perverse-genius/#comments</comments>
		<pubDate>Mon, 28 Apr 2008 09:07:02 +0000</pubDate>
		<dc:creator>Bill Greene</dc:creator>
				<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[bizarro world]]></category>
		<category><![CDATA[oracle]]></category>
		<category><![CDATA[perverse genius]]></category>

		<guid isPermaLink="false">http://bill2u.wordpress.com/?p=10</guid>
		<description><![CDATA[We might well consider a person who is nearly always right in his/her judgment a genius.
What about the person who is nearly always wrong?
If one were to make a series of binary decisions, where one alternative was right and the other was wrong, by flipping a coin, one should tend to be right about 50% [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=bill2u.wordpress.com&blog=3479132&post=10&subd=bill2u&ref=&feed=1" />]]></description>
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		<slash:comments>0</slash:comments>
	
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		<title>Deeply nested statements</title>
		<link>http://bill2u.wordpress.com/2008/04/16/deeply-nested-statements/</link>
		<comments>http://bill2u.wordpress.com/2008/04/16/deeply-nested-statements/#comments</comments>
		<pubDate>Wed, 16 Apr 2008 10:41:46 +0000</pubDate>
		<dc:creator>Bill Greene</dc:creator>
				<category><![CDATA[Programming]]></category>
		<category><![CDATA[best practices]]></category>
		<category><![CDATA[nesting]]></category>
		<category><![CDATA[peeve]]></category>

		<guid isPermaLink="false">http://bill2u.wordpress.com/2008/04/16/deeply-nested-statements/</guid>
		<description><![CDATA[Problem: Deeply nested statements (usually &#8220;if&#8221; statements) tend toward unreadability.
Discussion: It is often best to rule out pathological cases before attempting to perform routine work.  For example, one should ensure that a pointer is valid before attempting to dereference it, or that an array index is within the bounds of the array, or that [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=bill2u.wordpress.com&blog=3479132&post=9&subd=bill2u&ref=&feed=1" />]]></description>
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		<slash:comments>0</slash:comments>
	
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		<title>Legibility of sans serif typefaces</title>
		<link>http://bill2u.wordpress.com/2008/04/15/legibility-of-sans-serif-typefaces/</link>
		<comments>http://bill2u.wordpress.com/2008/04/15/legibility-of-sans-serif-typefaces/#comments</comments>
		<pubDate>Tue, 15 Apr 2008 17:24:47 +0000</pubDate>
		<dc:creator>Bill Greene</dc:creator>
				<category><![CDATA[Publishing]]></category>
		<category><![CDATA[font]]></category>
		<category><![CDATA[legibility]]></category>
		<category><![CDATA[sans serif]]></category>
		<category><![CDATA[serif]]></category>
		<category><![CDATA[typeface]]></category>

		<guid isPermaLink="false">http://bill2u.wordpress.com/2008/04/15/legibility-of-sans-serif-typefaces/</guid>
		<description><![CDATA[Problem: Illegibility of sans serif typefaces, especially when proportional spacing is used between characters.
Example: I have actually misinterpreted the following because the typeface used lacked serifs:



Insufficiently distinguishable text


Actual text
Misreading




clark.net
dark.net


modern
modem


Ill
111? III?


Double Churn
Double Chum


makefile.lvl
makefile.M




Objection:To be fair, legibility problems do not only afflict san-serif type.  I have a file named &#8220;bsd-style.txt&#8221; that I always first misread as [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=bill2u.wordpress.com&blog=3479132&post=7&subd=bill2u&ref=&feed=1" />]]></description>
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		<slash:comments>0</slash:comments>
	
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			<media:title type="html">bill2u</media:title>
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		<item>
		<title>Avoiding unnecessary branching</title>
		<link>http://bill2u.wordpress.com/2008/04/15/avoiding-unnecessary-branching/</link>
		<comments>http://bill2u.wordpress.com/2008/04/15/avoiding-unnecessary-branching/#comments</comments>
		<pubDate>Tue, 15 Apr 2008 16:37:09 +0000</pubDate>
		<dc:creator>Bill Greene</dc:creator>
				<category><![CDATA[Programming]]></category>
		<category><![CDATA[best practices]]></category>
		<category><![CDATA[boolean]]></category>
		<category><![CDATA[branching]]></category>
		<category><![CDATA[optimization]]></category>
		<category><![CDATA[peeve]]></category>

		<guid isPermaLink="false">http://bill2u.wordpress.com/2008/04/15/6/</guid>
		<description><![CDATA[Practice: Avoiding unnecessary branching.
Example (in C): 
   if (c == 'N')
   {
       b = TRUE;
   }
   else
   {
       b = FALSE;
   }
Discussion: Since C inherited the conditional expression from Algol 60, we could write instead:
   b = (c == 'N') ? TRUE : FALSE;
But even that is over-complicated when we could—and should—write:
   b = c == 'N';
Besides [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=bill2u.wordpress.com&blog=3479132&post=6&subd=bill2u&ref=&feed=1" />]]></description>
		<wfw:commentRss>http://bill2u.wordpress.com/2008/04/15/avoiding-unnecessary-branching/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
	
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		<title>Comparing booleans</title>
		<link>http://bill2u.wordpress.com/2008/04/14/comparing-booleans/</link>
		<comments>http://bill2u.wordpress.com/2008/04/14/comparing-booleans/#comments</comments>
		<pubDate>Mon, 14 Apr 2008 17:31:54 +0000</pubDate>
		<dc:creator>Bill Greene</dc:creator>
				<category><![CDATA[Programming]]></category>
		<category><![CDATA[best practices]]></category>
		<category><![CDATA[boolean]]></category>
		<category><![CDATA[comparison]]></category>
		<category><![CDATA[peeve]]></category>

		<guid isPermaLink="false">http://bill2u.wordpress.com/?p=3</guid>
		<description><![CDATA[Practice: Comparing a boolean literal to a boolean result.
Example (in C): Let b be some expression having a boolean value (say, v1 &#62; v2).
   if (b) ...
is better than
   if (b == TRUE) ...
and
   if (!b) ...
is better than
   if (b == FALSE) ....
Discussion: Booleans are sometimes referred to as &#8220;conditionals&#8221; in pre-ANSI C and have the type LOGICAL in Fortran.  The [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=bill2u.wordpress.com&blog=3479132&post=3&subd=bill2u&ref=&feed=1" />]]></description>
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		<slash:comments>0</slash:comments>
	
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