"tshad" <toms@p...> wrote in message 
news:#j$ftLrFKHA.3396@T......
>
> "Joe Fawcett" <joefawcett@n...> wrote in message 
> news:O5UvQAoFKHA.4732@T......
>>
>> "tshad" <toms@p...> wrote in message 
>> news:OjA0PNgFKHA.4316@T......
>>> I figured out how to do this by:
>>>
>>>   <source>
>>>      <xsl:if test="../../FIELDS/HEADER">
>>>            <xsl:value-of select="../../FIELDS/HEADER"/>
>>>      </xsl:if>
>>>      <xsl:if test="../../FIELDS/*[name() = 
>>> concat('TITLE',current()/@NUM)]">
>>>             <xsl:value-of select="../../FIELDS/*[name() = 
>>> concat('TITLE',current()/@NUM)]"/>
>>>       </xsl:if>
>>>   </source>
>>>
>>> But what I found that when both exists, it concatenates the 2nd test 
>>> with the first so that I end up with:
>>>
>>>
>>> Subject Photo PageThis is Title1
>>> Subject Photo Page
>>> Subject Photo PageThis is Title3
>>>
>>> How do you tell it to delete what is there (in the 1st and 3rd case) and 
>>> put the new value there.?
>>>
>>> I could put 2 tests in the first part, but I would prefer to write out 
>>> the Headers text and if the 2nd test passes to overwrite what the Header 
>>> test put there.  So I would end up with:
>>>
>>> This is Title1
>>> Subject Photo Page
>>> This is Title3
>>>
>>> Thanks,
>>>
>>> Tom
>>>
>>> "tshad" <toms@p...> wrote in message 
>>> news:uZ9YNkfFKHA.1488@T......
>>>> How would you test if something exists?
>>>>
>>>> If you have:
>>>>
>>>>    <FORM>
>>>>        <FIELDS>
>>>>            <HEADER>Subject Photo Page</HEADER>
>>>>            <TITLE1>This is Title1</TITLE1>
>>>>            <TITLE3>This is Title3</TITLE3>
>>>>        </FIELDS>
>>>>        <FORMPHOTOS>
>>>>            <PHOTO NUM="1">
>>>>                <FILENAME>09May001.jpg</FILENAME>
>>>>                <FILETYPE>JPEG</FILETYPE>
>>>>            </PHOTO>
>>>>            <PHOTO NUM="2">
>>>>                <FILENAME>09005.jpg</FILENAME>
>>>>                <FILETYPE>JPEG</FILETYPE>
>>>>            </PHOTO>
>>>>            <PHOTO NUM="3">
>>>>                <FILENAME>09002.jpg</FILENAME>
>>>>                <FILETYPE>JPEG</FILETYPE>
>>>>            </PHOTO>
>>>>        </FORMPHOTOS>
>>>>    </FORM>
>>>>
>>>> And I want to test if a name exists:
>>>>
>>>> Something like:
>>>>
>>>> <xsl:template match="FORMPHOTOS/PHOTO">
>>>>  <xsl:choose>
>>>>   <xsl:when test=". != ''">
>>>>    <attachment>
>>>>     <source>
>>>>        <xsl:choose>
>>>>
>>>>         <xsl:when test="name() = concat('TITLE',current()/@NUM) 
>>>> exists"> <--------
>>>>
>>>>                    <xsl:value-of select="../../FIELDS/*[name() = 
>>>> concat('TITLE',current()/@NUM)]"/>
>>>>         </xsl:when>
>>>>         <xsl:otherwise>
>>>>                   <xsl:value-of select="../../FIELDS/HEADER"/>
>>>>         </xsl:otherwise>
>>>>        </xsl:choose>
>>>>     </source>
>>>>    </attachment>
>>>>   </xsl:when>
>>>>  </xsl:choose>
>>>> </xsl:template>
>>>>
>>>> What I want to happen here is that for the nodes that have NUM = 1 or 3 
>>>> to use TITLE1 and TITLE3 (since they exist), otherwise use HEADER.
>>>>
>>>> Thanks,
>>>>
>>>> Tom
>>>>
>>>
>>>
>>
>> You could use something like this:
>> <?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" indent="yes"/>
>>
>>    <xsl:template match="/">
>>        <photos>
>>            <xsl:apply-templates select="FORM/FORMPHOTOS/PHOTO"/>
>>        </photos>
>>    </xsl:template>
>>
>>  <xsl:template match="PHOTO">
>>    <photo NUM="{@NUM}">
>>      <xsl:variable name="titleElementName" select="concat('TITLE', @NUM)" 
>> />
>>      <xsl:choose>
>>        <xsl:when test="/FORM/FIELDS/*[local-name() = $titleElementName]">
>>          <xsl:value-of select="/FORM/FIELDS/*[local-name() = 
>> $titleElementName]" />
>>        </xsl:when>
>>        <xsl:otherwise>
>>          <xsl:value-of select="/FORM/FIELDS/HEADER" />
>>        </xsl:otherwise>
>>      </xsl:choose>
>>    </photo>
>>  </xsl:template>
>>
>> </xsl:stylesheet>
>>
>> The XML schema is poor, having elements like TITLE1, TITLE2 etc will 
>> always make processing difficult, better to use attributes:
>> <TITLE number="1" />
>> for example.
>
> That looks good.
>
> I agree on the TITLE1 and TITLE2 issue but the XML that I am processing is 
> not mine so I have no control over the names of the elements.
>
> I did find another way to solve the checking if a name exists:
>
>      <xsl:if test="../../FIELDS/HEADER">
>       <xsl:value-of select="../../FIELDS/HEADER"/>
>      </xsl:if>
>      <xsl:if test="../../FIELDS/*[name() = 
> concat('TITLE',current()/@NUM)]">
>       <xsl:value-of select="../../FIELDS/*[name() = 
> concat('TITLE',current()/@NUM)]"/>
>      </xsl:if>
>
> This one works fine but if HEADER exists and TITLEx exists, then they will 
> concatenate.
>
> That was the other question I had, how to get the 2nd test to wipe out 
> whatever is in the field instead of concatenating. The above could end up 
> with:
>
> Subject Photo PageThis is Title1
>
> instead of:
>
> This is Title1
>
> Because HEADER existed.
>
> I solved this problem by using a CHOOSE instead of IF.
>
>      <xsl:choose>
>         <xsl:when test="../../FIELDS/*[name() = 
> concat('TITLE',current()/@NUM)]">
>            <xsl:value-of select="../../FIELDS/*[name() = 
> concat('TITLE',current()/@NUM)]"/>
>         </xsl:when>
>         <xsl:when test="../../FIELDS/HEADER">
>             <xsl:value-of select="../../FIELDS/HEADER"/>
>         </xsl:when>
>      </xsl:choose>
>
> In this case Header will not happen if TITLEx is found.
>
> But is there a way to make the work where by default HEADER will get 
> written out and if TITLEx is found, it will overwrite what was in HEADER 
> instead of just adding to it.
>
>      <xsl:value-of select="../../FIELDS/HEADER"/>
>      <xsl:if test="../../FIELDS/*[name() = 
> concat('TITLE',current()/@NUM)]">
>           <xsl:value-of select="../../FIELDS/*[name() = 
> concat('TITLE',current()/@NUM)]"/>
>      </xsl:if>
>
> Thanks,
>
> Tom
>>
>> Regards
>>
>> -- 
>>
>> Joe Fawcett (MVP - XML)
>> http://joe.fawcett.name
>
>

I don't quite understand, my stylesheet outputs the relevant TITLEx if it's 
there, otherwise the HEADER element.

-- 

Joe Fawcett (MVP - XML)
http://joe.fawcett.name