I was trying to solve the problem you gave.. and ended
up with a stylesheet below.. i have'nt written further
unless you tell us whether you can relax certain
conditions..
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
<xsl:output method="xml" version="1.0"
encoding="UTF-8" indent="yes"/>
<xsl:template match="COLLECTION">
<COLLECTION>
<xsl:apply-templates select="PHOTOS"/>
<xsl:apply-templates select="REGIONSET"/>
</COLLECTION>
</xsl:template>
<xsl:template match="PHOTOS">
<PHOTOS>
<xsl:for-each select="*">
<xsl:variable name="nam_e">
<xsl:value-of select="@label | @name"/>
</xsl:variable>
<xsl:variable name="ur_l">
<xsl:value-of select="@place | @url"/>
</xsl:variable>
<xsl:variable name="old_name">
<xsl:value-of select="name(.)"/>
</xsl:variable>
<xsl:choose>
<xsl:when test="@label and @place">
<IMAGE name="{$nam_e}" url="{$ur_l}"
oldname="{$old_name}" old_atr_name="label"
old_atr_url="place" />
</xsl:when>
<xsl:when test="@label and @url">
<IMAGE name="{$nam_e}" url="{$ur_l}"
oldname="{$old_name}" old_atr_name="label"
old_atr_url="url"/>
</xsl:when>
<xsl:when test="@name and @place">
<IMAGE name="{$nam_e}" url="{$ur_l}"
oldname="{$old_name}" old_atr_name="name"
old_atr_url="place"/>
</xsl:when>
<xsl:when test="@name and @url">
<IMAGE name="{$nam_e}" url="{$ur_l}"
oldname="{$old_name}" old_atr_name="name"
old_atr_url="url"/>
</xsl:when>
</xsl:choose>
</xsl:for-each>
</PHOTOS>
</xsl:template>
<xsl:template match="REGIONSET">
</xsl:template>
</xsl:stylesheet>
you have mentioned in your requirement, that there is
strict order of attributes.. this seems to be not
possible with XSLT.. XSLT does'nt recognize attributes
by position and as Jeni pointed, accessing attributes
by position will not guarantee a predictable result
with XSLT and is not uniform accross XSLT processors..
but, *a solution can be*, in this statement i have
written
<xsl:value-of select="@label | @name"/> (attribute
names are 'label' and 'name')
you can keep adding or ( | ) expressions as you come
to know a new attribute name.. you will need to keep
changing your stylesheet for this to work.. i guess a
new attribute name will not come so frequently, so
maintaining your stylesheet like this may work for
you..
the reverse transform will be similar to like this..
Regards,
Mukul
--- Kai Lienemann <Xenum81(_at_)web(_dot_)de> wrote:
Hello again,
I'm not really fit in writing stylesheets but I need
two for my programme!
The one must form the XML-File so, my plugin can
work with them, and the
second has to undo the transformation of the first.
Lets describe the first:
In the XML-File are nodes with the name "IMAGE" and
the first attribute
should reflect the name and the second attribute the
location of the image.
The name of these attribute is not fix, but in the
result the furst
attribute should be named "name" and the second
"url" and the old name
should be stored in attribute so in the second
transformation these
attributes get there old name.
In other parts of the File are Nodes with the
node-name REGIONSET and the
attribute "image". But in this attribute "image" I
need not the name, but
the location where I can find the file.
So this attribute has to be replaced with the url of
the node IMAGE where
the value of the "image" and "name" are the same.
(Maybe saving the url of
the images in variables with the name of the image
should be helpful) In the
second stylesheet I want to undo this replacing and
so the original name
should be stored in the attribute "oldvalue". There
can be more than one
IMAGE-node and in more than one REGIONSET-nodes can
be used the same image.
But at the first step of the transformation nodes
like PHOTO, BILDCHEN, IMG,
FOTO should be renamed with the name IMAGE and the
old name should be stored
in the attribute "oldname" (I asked this some mails
before but in this case
it is more difficult for me so I can't use it). All
other nodes and
attributes should be copied and not changed!
Input-Example:
<Collection>
<PHOTOS>
<FOTO label="test1"
place="/vol/pictures/test1.jpg"/>
<PHOTO name="test2"
url="/vol/pictures/test2.jpg"/>
<BILDCHEN name="test3"
url="/vol/pictures/test3.jpg"/>
<IMG name="test4"
url="/vol/pictures/test4.jpg"/>
<IMAGE name="test5"
url="/vol/pictures/test5.jpg"/>
</PHOTOS>
<REGIONSET image="test2">
<RECT x="10" y="20" z="50" h="70">
Cup
</RECT>
<RECT x="20" y="30" z="60" h="20">
Sword
</RECT>
</REGIONSET>
</COLLECTION>
Output Example:
<Collection>
<PHOTOS>
<IMAGE name="test1"
url="/vol/pictures/test1.jpg" oldname="FOTO"
old_atr_name="label" old _atr_url="location"/>
<IMAGE name="test2"
url="/vol/pictures/test2.jpg"oldname="PHOTO"/>
<IMAGE name="test3"
url="/vol/pictures/test3.jpg"
oldname="BILDCHEN"/>
<IMAGE name="test4"
url="/vol/pictures/test4.jpg" oldname="IMG"/>
<IMAGE name="test5"
url="/vol/pictures/test5.jpg"/>
</PHOTOS>
<REGIONSET image="/vol/pictures/test2.jpg"
oldvalue="test2">
<RECT x="10" y="20" z="50" h="70">
Cup
</RECT>
<RECT x="20" y="30" z="60" h="20">
Sword
</RECT>
</REGIONSET>
</COLLECTION>
The second stylesheet:
The second should undo all, the first stylesheet
did. So rename ever changed
node and attribute with the original stored name and
value and delete the
new created attributes.
I think it is really hard to write these stylesheets
and I don't know, if it
is possible! So would be nice if anybody could help
me or give some hints so
I can solve this problem. I dont believe I could
manage to solve this
problem alone so help would be very welcome!!!!
XSL-List info and archive:
http://www.mulberrytech.com/xsl/xsl-list
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