XSLT的命名空间问题 [英] namespace problem with XSLT
问题描述
嗨！
我在使用一些简单的愚蠢的XSLT时遇到了一些麻烦。
我的样式表：
-------------
<？xml version =" 1.0" encoding =" iso-8859-1"？>
< xsl：stylesheet
version =" 1.0"
xmlns ：xsl =" http：//www.w3.org/1999/XSL/Transform"
xmlns =" http：//www.w3.org/1999/xhtml"
Hi!
I have some trouble with some simple stupid XSLT-stuff.
My stylesheet:
-------------
<?xml version="1.0" encoding="iso-8859-1"?>
<xsl:stylesheet
version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns="http://www.w3.org/1999/xhtml"
< xsl：output method =" xml"
cdata-section-elements =" script"
doctype-public =" - // W3C // DTD XHTML 1.0 Transitional // EN"
doctype-system =" http：//www.w3.org/TR/xhtml1/DTD/ xhtml1-transitional.dtd"
encoding =" iso-8859-1" />
< xsl：template match =" html" >
< p>已插入< / p>
< / xsl：template>
< / xsl ：stylesheet>
-------------
我的XML文档：
----- --------
<？xml version =" 1.0" encoding =" iso-8859-1"？>
<！DOCTYPE html PUBLIC" - // W3C // DTD XHTML 1.0 Strict // EN"
http：//www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
< html xmlns =" http：//www.w3。 org / 1999 / xhtml">
< head>< title> Whatever< / title>< / head>< body>< / body>< / html>
-------------
这种转变的结果是：
---- ---------
<？xml version =" 1.0" encoding =" iso-8859-1"？>
-------------
或
-------------
<？xml version =" 1.0" encoding =" iso-8859-1"？>
无论什么
-------------
显然结果应该是......喜欢<？xml ...>< p>已插入< / p>和$ / b $ b现在真正奇怪的事情：将样式表更改为：
------------
< ;？xml version =" 1.0" encoding =" iso-8859-1"？>
< xsl：stylesheet
version =" 1.0"
xmlns ：xsl =" http：//www.w3.org/1999/XSL/Transform"
xmlns =" http：//www.w3.org/1999/xhtml"
xmlns：xhtml =" http：//www.w3.org/1999/xhtml"
<xsl:output method="xml"
cdata-section-elements="script"
doctype-public="-//W3C//DTD XHTML 1.0 Transitional//EN"
doctype-system="http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"
encoding="iso-8859-1"/>
<xsl:template match="html">
<p>Inserted</p>
</xsl:template>
</xsl:stylesheet>
-------------
My XML-Document:
-------------
<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head><title>Whatever</title></head><body></body></html>
-------------
The result of this transformation is:
-------------
<?xml version="1.0" encoding="iso-8859-1"?>
-------------
or
-------------
<?xml version="1.0" encoding="iso-8859-1"?>
Whatever
-------------
Obviously the result should be sth. like <?xml ...><p>Inserted</p> and
now for the truly strange thing: Changing the stylesheet to:
------------
<?xml version="1.0" encoding="iso-8859-1"?>
<xsl:stylesheet
version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns="http://www.w3.org/1999/xhtml"
xmlns:xhtml="http://www.w3.org/1999/xhtml"
< xsl：output method =" xml"
cdata-section-elements =" script"
doctype-public =" - // W3C // DTD XHTML 1.0 Transitional // EN"
doctype-system =" http：//www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"
encoding =" iso-8859- 1" />
< xsl：template match =" xhtml：html">
< p>已插入< / p>
< / xsl：template>
< / xsl：stylesheet>
--------- ---
结果为：
------------
<？xml version =" 1.0" encoding =" iso-8859-1"？>
<！DOCTYPE p PUBLIC" - // W3C // DTD XHTML 1.0 Transitional // EN"
http：//www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
< p xmlns =" http：//www.w3。 org / 1999 / xhtml"
xmlns：xhtml =" http：//www.w3.org/1999/xhtml">已插入< / p>
- -----------
为什么？为什么更改命名空间声明会改变
XSLT处理器的行为（尝试过Saxon（7.6.5）和Xalan（带Xerxes 2.3.0的1.6.0））
以这种方式？不应该匹配=sometag表示default-xmlns：sometag？
如果xmlns：xhtml-Namespace是必要的：有没有办法保持xslt-processors（撒克逊人）
或xalan）从插入未使用的，因此
不必要的命名空间声明干扰W3C XHTML
验证器？
提前致谢
Bernd Fuhrmann
<xsl:output method="xml"
cdata-section-elements="script"
doctype-public="-//W3C//DTD XHTML 1.0 Transitional//EN"
doctype-system="http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"
encoding="iso-8859-1"/>
<xsl:template match="xhtml:html">
<p>Inserted</p>
</xsl:template>
</xsl:stylesheet>
------------
results in:
------------
<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE p PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<p xmlns="http://www.w3.org/1999/xhtml"
xmlns:xhtml="http://www.w3.org/1999/xhtml">Inserted</p>
------------
Why? Why does changing a namespace declaration change the behaviour of a
XSLT processor (tried Saxon (7.6.5) and Xalan (1.6.0 with Xerxes 2.3.0))
in that way? Shouldn''t match="sometag" mean default-xmlns:sometag?
In case the xmlns:xhtml-Namespace is necessary: Is there a way to keep
the xslt-processors (saxon or xalan) from inserting unused, thus
unnecessary namespace declarations that interfere with the W3C XHTML
validator?
Thanks in advance
Bernd Fuhrmann
推荐答案
这是一个非常常见的问题。
请参阅：
http：/ /www.topxml.com/people/bosley/defaultns.asp
=====
干杯，
Dimitre Novatchev。
http://fxsl.sourceforge.net/ - FXSL的所在地
" Bernd Fuhrmann" < SI ********** @ gmx.de>在消息中写道
news：bl ************* @ news.t-online.com ...
This is a very FAQ.
See:
http://www.topxml.com/people/bosley/defaultns.asp
=====
Cheers,
Dimitre Novatchev.
http://fxsl.sourceforge.net/ -- the home of FXSL
"Bernd Fuhrmann" <si**********@gmx.de> wrote in message
news:bl*************@news.t-online.com...
嗨！
我遇到一些简单的愚蠢的XSLT问题。
我的样式表：
-------------
<？xml version =" 1.0" encoding =" iso-8859-1"？>
< xsl：stylesheet
version =" 1.0"
xmlns：xsl =" http：//www.w3 .org / 1999 / XSL / Transform"
xmlns =" http：//www.w3.org/1999/xhtml"
Hi!
I have some trouble with some simple stupid XSLT-stuff.
My stylesheet:
-------------
<?xml version="1.0" encoding="iso-8859-1"?>
<xsl:stylesheet
version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns="http://www.w3.org/1999/xhtml"
>
< xsl：output method =" xml"
cdata-section-elements =" script"
doctype-public =" - // W3C // DTD XHTML 1.0 Transitional // EN"
doctype-system =" http：//www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"
encoding =" iso-8859-1" /> ;
< xsl：template match =" html">
< p>已插入< / p>
< / xsl：template>
< / xsl：stylesheet>
-------------
我的XML文档：
--------- ----
<？xml version =" 1.0" encoding =" iso-8859-1"？>
<！DOCTYPE html PUBLIC" - // W3C // DTD XHTML 1.0 Strict // EN"
" http：// www .w3.org / TR / xhtml1 / DTD / xhtml1-transitional.dtd">
< html xmlns =" http：//www.w3.org/1999/xhtml">
< head>< title> Whatever< / title>< / head>< body>< / body>< / html>
-------------
这种转变的结果是：
-------------
<？xml version =" 1.0" encoding =" iso-8859-1"？>
-------------
或
----------- -
<？xml version =" 1.0" encoding =" iso-8859-1"？>
无论什么
-------------
显然结果应该是......喜欢<？xml ...>< p>已插入< / p>现在，对于真正奇怪的事情：将样式表更改为：
------------
<？xml version =" 1.0" encoding =" iso-8859-1"？>
< xsl：stylesheet
version =" 1.0"
xmlns：xsl =" http：//www.w3 .org / 1999 / XSL / Transform"
xmlns =" http：//www.w3.org/1999/xhtml"
xmlns：xhtml =" http：//www.w3.org / 1999 / xhtml"
<xsl:output method="xml"
cdata-section-elements="script"
doctype-public="-//W3C//DTD XHTML 1.0 Transitional//EN"
doctype-system="http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"
encoding="iso-8859-1"/>
<xsl:template match="html">
<p>Inserted</p>
</xsl:template>
</xsl:stylesheet>
-------------
My XML-Document:
-------------
<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head><title>Whatever</title></head><body></body></html>
-------------
The result of this transformation is:
-------------
<?xml version="1.0" encoding="iso-8859-1"?>
-------------
or
-------------
<?xml version="1.0" encoding="iso-8859-1"?>
Whatever
-------------
Obviously the result should be sth. like <?xml ...><p>Inserted</p> and
now for the truly strange thing: Changing the stylesheet to:
------------
<?xml version="1.0" encoding="iso-8859-1"?>
<xsl:stylesheet
version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns="http://www.w3.org/1999/xhtml"
xmlns:xhtml="http://www.w3.org/1999/xhtml"
>
< xsl：output method =" xml"
cdata-section-elements ="脚本
doctype-public =" - // W3C // DTD XHTML 1.0 Transitional // EN"
doctype-system =" http：//www.w3.org/TR/xhtml1/ DTD / xhtml1-transitional.dtd"
encoding =" iso-8859-1" />
< xsl：template match =" xhtml：html">
< p>已插入< / p>
< / xsl：template>
< / xsl：stylesheet>
--------- ---
结果：
------------
<？xml version =" 1.0" encoding =" iso-8859-1"？>
<！DOCTYPE p PUBLIC" - // W3C // DTD XHTML 1.0 Transitional // EN"
" http：// www .w3.org / TR / xhtml1 / DTD / xhtml1-transitional.dtd">
< p xmlns =" http：//www.w3.org/1999/xhtml"
xmlns： xhtml =" http：//www.w3.org/1999/xhtml">已插入< / p>
------------
为什么？为什么更改命名空间声明会以这种方式改变
XSLT处理器（尝试Saxon（7.6.5）和Xalan（1.6.0 with Xerxes 2.3.0））的行为？不应该匹配=sometag意味着default-xmlns：sometag？
如果xmlns：xhtml-Namespace是必要的：有没有办法让xslt-processors（saxon或xalan）不插入未使用的，因此
不必要的名称空间声明会干扰W3C XHTML
验证器吗？
提前致谢
Bernd Fuhrmann
<xsl:output method="xml"
cdata-section-elements="script"
doctype-public="-//W3C//DTD XHTML 1.0 Transitional//EN"
doctype-system="http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"
encoding="iso-8859-1"/>
<xsl:template match="xhtml:html">
<p>Inserted</p>
</xsl:template>
</xsl:stylesheet>
------------
results in:
------------
<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE p PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<p xmlns="http://www.w3.org/1999/xhtml"
xmlns:xhtml="http://www.w3.org/1999/xhtml">Inserted</p>
------------
Why? Why does changing a namespace declaration change the behaviour of a
XSLT processor (tried Saxon (7.6.5) and Xalan (1.6.0 with Xerxes 2.3.0))
in that way? Shouldn''t match="sometag" mean default-xmlns:sometag?
In case the xmlns:xhtml-Namespace is necessary: Is there a way to keep
the xslt-processors (saxon or xalan) from inserting unused, thus
unnecessary namespace declarations that interfere with the W3C XHTML
validator?
Thanks in advance
Bernd Fuhrmann
Dimitre Novatchev写道：
Dimitre Novatchev wrote:
参见：
http://www.topxml.com/people/bosley/defaultns.asp
阅读。然而，从阅读标准来看并不明显。至少我没有在XSLT / XPath / ... 1.0中找到任何关于这个问题的部分。
这是一个非常常见的问题。
See:
http://www.topxml.com/people/bosley/defaultns.asp Read. However that wasn''t obvious from reading the standard. At least I
have not found any part in XSLT/XPath/... 1.0 that talks about this problem.
This is a very FAQ.
可能。到目前为止，我只阅读了一些例子，并自己完成了一些事情
。所以我必须写< xsl：template match =" xhtml：sometag"> ....但是
我怎么能避免在他们的DTD中破坏XHTML的验证时
Xalan和Saxon（也很可能是其他一些XSLT处理器）插入
他们的冗余xmlns：xhtml =" ..."在结果中？
再次提前感谢，
Bernd Fuhrmann
Possible. I have, so far, only read some examples and done some stuff
myself. So I must write <xsl:template match="xhtml:sometag">... . But
how can I then avoid to break validation of XHTML by their DTDs when
Xalan and Saxon (and most likely some other XSLT processors too) insert
their redundant xmlns:xhtml="..." in the result?
Thanks again in advance,
Bernd Fuhrmann
>所以我必须写< xsl：template match =" xhtml：sometag"> ....但是
> So I must write <xsl:template match="xhtml:sometag">... . But
当Xalan和Saxon（以及其他一些其他XSLT处理器）插入多余的xmlns时，我怎么能避免破坏XHTML的DTD验证：xhtml =" ..."在结果？
how can I then avoid to break validation of XHTML by their DTDs when
Xalan and Saxon (and most likely some other XSLT processors too) insert
their redundant xmlns:xhtml="..." in the result?
你能举个例子吗？
=====
干杯，
Dimitre Novatchev。
http://fxsl.sourceforge.net / - FXSL的主页
Can you give an example?
=====
Cheers,
Dimitre Novatchev.
http://fxsl.sourceforge.net/ -- the home of FXSL
这篇关于XSLT的命名空间问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
