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

From: Arend P. van der Veen (apvanderveen at att.net)
Date: Thu Oct 21 10:05:51 EDT 2004

That did the trick Jacob.  Thanks for your help.

- Arend

Jacob Matthews wrote:
>  For list-related administrative tasks:
>  http://list.cs.brown.edu/mailman/listinfo/plt-scheme
> 
> Actually, I just made a typo in my response because I misread how your 
> code worked. The symbol nbsp should not be in quotes; it should just be 
> a symbol directly in your x-expression.
> 
>  > (define lhtml
>    `(html
>      (head
>       (title "Flight Information"))
>      (body
>       (h2 "Item 1")(br) nbsp (h2 "Item 2"))))
>  > (write-xml/content (xexpr->xml lhtml))
> <html><head><title>Flight Information</title></head><body><h2>Item 
> 1</h2><br />&nbsp;<h2>Item 2</h2></body></html>
> 
> 
> -jacob
> 
> Arend P. van der Veen wrote:
> 
>> 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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