[plt-scheme] X-expressions, HTML and a nonbreaking space ( )

From: Arend P. van der Veen (apvanderveen at att.net)
Date: Thu Oct 21 09:55:46 EDT 2004

Thank you for response Jacob.  I tried you suggestion and now it 
generated the following HTML

<html><head><title>Flight Information</title></head><body><h2>Item 
1</h2><br /> nbsp <h2>Item 2</h2></body></html>

For this to work properly it should have generated &nbsp; instead of 
nbsp.  Is there anyway that you are aware of to force the X-expression 
to not escape sequence part of its expression ?

Thanks,
Arend



Jacob Matthews wrote:
> Just use the bare symbol nbsp rather than &nbsp; --
> 
> (define lhtml
>    `(html
>      (head
>       (title "Flight Information"))
>      (body
>       (h2 "Item 1")(br)" nbsp "(h2 "Item 2"))))
> 
> -jacob
> 
> Arend P. van der Veen wrote:
> 
>>  For list-related administrative tasks:
>>  http://list.cs.brown.edu/mailman/listinfo/plt-scheme
>>
>> Hi All,
>>
>> I have been writing servlets using a response containing an 
>> X-expression representing HTML.  I am trying to include a nonbreaking 
>> space (&nbsp;) and it is getting escape sequenced (&amp;nbsp;).  Does 
>> anybody have any suggestions on how to correct this ?
>>
>> To illustrate the problem please consider the following test program:
>>
>> (require (lib "unitsig.ss")
>>          (lib "servlet-sig.ss" "web-server"))
>>
>> (unit/sig () (import servlet^)
>>
>>   (define lhtml
>>     `(html
>>       (head
>>        (title "Flight Information"))
>>       (body
>>        (h2 "Item 1")(br)"&nbsp;"(h2 "Item 2"))))
>>
>>   lhtml
>>   )
>>
>> The servlet generates the following HTML:
>>
>> <html><head><title>Flight Information</title></head><body><h2>Item 
>> 1</h2><br />&amp;nbsp;<h2>Item 2</h2></body></html>
>>
>> I wanted it to generate the following:
>>
>> <html><head><title>Flight Information</title></head><body><h2>Item 
>> 1</h2><br />&nbsp;<h2>Item 2</h2></body></html>
>>
>> The problem is that &nbsp; is getting escape sequenced.
>>
>> Thanks for any help in advance,
>> Arend
>>
> 
> 


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