[Baypiggies] Html encoding question

Thu Jun 7 20:54:19 CEST 2007

Joshua Gallagher wrote::
> Hi Ken,
> 
> If you want the string 'where x < z*5, and x > z+2' to show up as
> text, you could also put it within the <pre></pre> html tags.
> 
> For example:
> sampleCode = '<pre>' + 'where x < z*5, and x > z+2' + '</pre>'
> 
> All the best,
> 
> Joshua
> 

   Unfortunately, you still need to convert the '<' and '>' characters 
to HTML entities (as JJ's snippet did).  Somewhere I seem to recall 
having seen a web browser that did not interpret '<', '>', etc. in PRE 
tags, but a quick test with both Firefox and IE7 shows that both of the 
mainstream browsers will interpret them.  Hence the need to convert them 
to entities using cgi.escape().

   As a quick demo, consider the following HTML document:

	<html>
	<body>
	<pre>
	&lt;b&gt;Test 1&lt;/b&gt;
	<b>Test 2</b>
	</pre>
	</body>
	</html>

   In both Firefox and IE7, Test 2 is rendered in bold.

   For this reason, I have to run all code samples through the following 
filter before posting them to my blog:

python -c 'import cgi; import sys; print cgi.escape(sys.stdin.read());'

   Of course, as you mention, the code looks a lot better if I put it 
inside a PRE tag. :)

   Kelly

-- 
Kelly Yancey
http://kbyanc.blogspot.com/

> On 6/7/07, Shannon -jj Behrens <jjinux at gmail.com> wrote:
>> On 6/7/07, Ken Seehart <ken at seehart.com> wrote:
>>> Is there a handy function somewhere that converts a string so that the
>>> result will display as plain text in an html document?  Somewhat
>>> analogous to urlencode but not exactly.
>>>
>>> So for example
>>>
>>>  >>> html_str_encode('where x < z*5, and x > z+2')
>>> 'where x &lt; z*5, and x &gt; z+2'
>>>
>>> I'm pretty sure I've seen this before, but I just can't seem to find it
>>> today.  Maybe I just need more coffee.
>>>
>>> Thanks,
>>> - Ken
>>>>> import cgi
>>>>> cgi.escape('where x < z*5, and x > z+2')
>> 'where x &lt; z*5, and x &gt; z+2'
>>
>> It's more simple than complete, but it works for the standard stuff.
>>
>> Best Regards,
>> -jj
>>
>> --
>> http://jjinux.blogspot.com/
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