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Re: [Chicken-users] Lowdown & sxml-serializer not working together
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From: |
Jim Ursetto |
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Subject: |
Re: [Chicken-users] Lowdown & sxml-serializer not working together |
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Date: |
Sat, 24 Aug 2013 17:25:55 -0500 |
On Aug 23, 2013, at 11:24 PM, Matt Gushee <address@hidden> wrote:
> Hello again--
>
> Well, I'm running into a new problem with SRV:send-reply. By following
> the documentation, I managed to create a rule set that escaped problem
> characters i the manner I want. But now, working with the complete
> document, I discover that some of the non-element nodes are not
> handled properly. The SXML form of my document starts like this:
>
> (*TOP*
> (@ (*NAMESPACES*
> (#f "http://www.w3.org/1999/xhtml";)
> (cvt "http://xmlns.therebetygers.net/civet/0.1";)))
> (*PI* xml "version=\"1.0\" encoding=\"utf-8\"")
> (html
> (@ (xml:lang "en") (lang "en"))
>
> But when I serialize it with (SRV:send-reply (pre-post-order tree
> <rules>)), the output begins like this:
>
> <*TOP*
> *NAMESPACES*="http://www.w3.org/1999/xhtml
> cvt="http://xmlns.therebetygers.net/civet/0.1"";>
> <*PI*>xmlversion="1.0" encoding="utf-8"</*PI*>
> <html xml:lang="en" lang="en">
This should serialize reasonably correctly with sxml-serializer.
(use sxml-serializer)
(print
(serialize-sxml
'(*TOP*
(@ (*NAMESPACES*
(#f "http://www.w3.org/1999/xhtml";)
(cvt "http://xmlns.therebetygers.net/civet/0.1";)))
(*PI* xml "version=\"1.0\" encoding=\"utf-8\"")
(html
(@ (xml:lang "en") (lang "en"))
(cvt:template
(cvt:head
(cvt:locale (@ (lang "en") (country "US") (encoding "utf-8"))))
(cvt:block (@ (name "headerContent"))
#\< Single #\space (#\a #\r #\t #\i #\c #\l #\e) #\space "page>"))))))
<?xml version="1.0" encoding="utf-8"?>
<html xml:lang="en" lang="en">
<cvt:template xmlns:cvt="http://xmlns.therebetygers.net/civet/0.1";>
<cvt:head>
<cvt:locale lang="en" country="US" encoding="utf-8" />
</cvt:head>
<cvt:block name="headerContent"><Single article page></cvt:block>
</cvt:template>
</html>
Unfortunately it doesn't declare the default namespace for html. You can work
around this by providing a default namespace prefix *and* using the actual
prefix (below, xhtml:) on your elements. This is kind of ugly. However, the
stock serializer didn't even support default namespaces (!) so I may have
simply overlooked this case when adding support. I'll see if I can look into
it further.
(print
(serialize-sxml
'(*TOP*
(@ (*NAMESPACES*
(xh "http://www.w3.org/1999/xhtml";)
(cvt "http://xmlns.therebetygers.net/civet/0.1";)))
(*PI* xml "version=\"1.0\" encoding=\"utf-8\"")
(xh:html
(@ (xml:lang "en") (lang "en"))
(cvt:template
(cvt:head
(cvt:locale (@ (lang "en") (country "US") (encoding "utf-8"))))
(cvt:block (@ (name "headerContent"))
#\< Single #\space (#\a #\r #\t #\i #\c #\l #\e)
#\space "page>"))))
ns-prefixes: '((*default* . "http://www.w3.org/1999/xhtml";))
))
<?xml version="1.0" encoding="utf-8"?>
<html xmlns="http://www.w3.org/1999/xhtml"; xml:lang="en" lang="en">
<cvt:template xmlns:cvt="http://xmlns.therebetygers.net/civet/0.1";>
<cvt:head>
<cvt:locale lang="en" country="US" encoding="utf-8" />
</cvt:head>
<cvt:block name="headerContent"><Single article page></cvt:block>
</cvt:template>
</html>
Namespaces can be tricky. Check my blog posts on the subject and feel free to
ask for help.
http://3e8.org/blog/2010/07/30/namespaces-in-sxml-part-1/
http://3e8.org/blog/2010/07/31/namespaces-in-sxml-part-2/
http://3e8.org/blog/2010/08/01/default-namespaces-in-sxml/
Jim