Message: 8
> Date: Tue, 15 Dec 2009 14:23:31 +0100
> From: Hussein Shafie <hussein at xmlmind.com>
> Subject: Re: [XXE] Using XPath to create arguments to pick command
> dynamically
> To: Mariusz Idzikowski <m.idzikowski at lexicode.pl>
> Cc: "xmleditor-support at xmlmind.com" <xmleditor-support at xmlmind.com>
> Message-ID: <4B278DD3.4050409 at xmlmind.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> Mariusz Idzikowski wrote:
>
>>> [2] Then use another XPath expression to obtain the ID of the book
>>> having the title chosen by the user. Something like:
>>>
>>> <get expression="//bo...@title='%_']/@id"/>
>>>
>> Your solution rests on the assumption that all titles in the document should
>> be unique, which may not necessarily be the case...
>>
>> If the pick command could (optionally, of course) return the *index* of the
>> selected item (like e.g. JList's getSelectedIndex method or similar methods
>> of ListBox-like controls in other languages), perhaps this problem could be
>> solved in a way similar to this:
>>
>> <set variable="ids" expression="//book/@id"/>
>> <set variable="titles" expression="concat('"', join(//book/@title,
>> '" "'), '"')" plainString="false" />
>> <command name="pick" parameter="'Select a title'
>> some-new-get-index-instead-of-value-parameter $titles"/>
>> <get expression="$ids[%_]"/> <!-- is it possible to index into a user
>> variable? -->
>>
>> I suspect that there may be other scenarios when the pick command returning
>> the index rather than value of the selected item could prove helpful.
>>
>
> I don't think so. I do not remember any such scenario.
>
>
>
>
>> Is there any hope that such a functionality could be implemented in the
>> future?
>>
>>
>
> I'm sorry but the answer is no. If you want something more elaborate
> that what I have suggested, I'm afraid you'll have to implement it
> yourself in Java.
>
Another possibility is to use a transform to create what you want for
the pick command and then feed the pick command with that. I do that
for a number of referenced items. For example for citations to
(bibliographic) references, I use these two commands
<cfg:command name="setCitation">
<cfg:macro>
<cfg:sequence>
<cfg:pass>
<cfg:command name="selectNode"
parameter="self[implicitElement] citation"/>
</cfg:pass>
<cfg:command name="getRefWorkTitlesandIds"/>
<cfg:command name="pick" parameter="Citation true %_"/>
<cfg:command name="putAttribute"
parameter="[implicitElement] ref %_"/>
</cfg:sequence>
</cfg:macro>
</cfg:command>
<cfg:command name="getRefWorkTitlesandIds">
<cfg:process showProgress="false">
<cfg:copyDocument to="in.xml"/>
<cfg:transform cacheStylesheet="true" file="in.xml"
stylesheet="../transforms/GetRefWorkTitlesAndIds.xsl" to="out.xml"/>
<cfg:read encoding="UTF-8" file="out.xml"/>
</cfg:process>
</cfg:command>
and this XSLT:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
<xsl:output method="text" encoding="UTF-8" indent="no"/>
<xsl:template match="/">
<xsl:apply-templates select="//refWork">
<xsl:sort select="../@citename"/>
<xsl:sort select="refTitle"/>
</xsl:apply-templates>
</xsl:template>
<xsl:template match="//refWork">
<xsl:text>"</xsl:text>
<xsl:value-of select="../@citename"/>
<xsl:text>: </xsl:text>
<xsl:apply-templates select="refTitle" mode="InTitle"/>
<xsl:text> {</xsl:text>
<xsl:value-of select="@id"/>
<xsl:text>}"
</xsl:text>
<xsl:value-of select="@id"/>
<xsl:text>
</xsl:text>
</xsl:template>
<xsl:template match="object" mode="InTitle">
<xsl:variable name="type" select="id(@type)"/>
<xsl:value-of select="$type/@before"/>
<xsl:value-of select="."/>
<xsl:value-of select="$type/@after"/>
</xsl:template>
</xsl:stylesheet>
Here is a screenshot of what the pick dialog can look like (since I'm
not sure if graphics like this come through to the list, I'm copying
Mariusz and Hussein):
Hope this helps,
--Andy
