RE: [xsl] key match and x-path problems

[Ahmad J Reeves <ahmad at dcs dot qmul dot ac dot uk>]

Kev,

Please ignore reply below as I misread your answer which was of course
correct.


"the instruction,
	<xsl:value-of select="concat('STATUS ',CHARACTER_STATUS,
               '  ',count(key('kByID',CHARACTER_ID)),
                                   $NL)"/>

Generates 'STATUS 6 3' because key(..) returns a nodeset of these three
elements. The <xsl:if ..> is actually redundant since vUniqueCharacters does
not contain any duplicates."

So how could I then count the correct number of unique statuses ?

Ahmad



At 09:42 23/04/02 +0100, you wrote:
>Hi Kev,
>
>Thanks for the assistance.
>
>The first stylesheet is supposed to ignore CHARACTER_ID's that are the same
>so in the example below the 3 occurences of STATUS 6 are all the same
>person as
>they have the same CHARACTER_ID and therefore gives me an innacurate total.
>
>I wanted the total number of each status in the xml documemt ignoring
>duplicte characters, which was why I tried the 	
>
><xsl:if test="not(CHARACTER_ID[. = preceding::CHARACTER_ID])">
>
>to count the first occurence of 
>
><DIRECT>
>      <COMMUNICATION_TYPE> PAGETELL </COMMUNICATION_TYPE>
>      <Invoc_serial> 29 </Invoc_serial>
>      <Serial> 19461910 </Serial>
>      <USAGE> TELL </USAGE>
>      <MESSAGE_TYPE> EMOTE </MESSAGE_TYPE>
>      <CHARACTER_ID> 10010 </CHARACTER_ID> <------ ok we count him here
>      <CHARACTER_STATUS> 6 </CHARACTER_STATUS> 
>      <LOCATION_ID> 24488 </LOCATION_ID>
>      <TARGET_CHARACTER_ID> 18735 </TARGET_CHARACTER_ID>
>      <TARGET_CHARACTER_STATUS> 6 </TARGET_CHARACTER_STATUS>
>      <TARGET_CHARACTER_LOCATION_ID> 24488
></TARGET_CHARACTER_LOCATION_ID>
>      <MESSAGE> %#NF#%wthinks %y%l. o O ( %w%lThinks of a new
>prefix/suffix.%y%l ) </MESSAGE>
>      <TIME> 'Tue, 01 Jan 2002 20:27:50 +0000' </TIME>
>   </DIRECT>
>   <LOCAL>
>      <COMMUNICATION_TYPE> PAGETELL </COMMUNICATION_TYPE>
>      <Invoc_serial> 29 </Invoc_serial>
>      <Serial> 19461911 </Serial>
>      <USAGE> TELL </USAGE>
>      <MESSAGE_TYPE> EMOTE </MESSAGE_TYPE>
>      <CHARACTER_ID> 10010 </CHARACTER_ID> <---- same guy so we need to
>ignore him here et cetra
>      <CHARACTER_STATUS> 6 </CHARACTER_STATUS>
>      <LOCATION_ID> 24488 </LOCATION_ID>
>      <TARGET_CHARACTER_ID> 23212 </TARGET_CHARACTER_ID>
>      <TARGET_CHARACTER_STATUS> 3 </TARGET_CHARACTER_STATUS>
>      <TARGET_CHARACTER_LOCATION_ID> 24485 </TARGET_CHARACTER_LOCATION_ID>
>      <MESSAGE> %#NF#%wthinks %y%l. o O ( %w%lThinks of a new
>prefix/suffix.%y%l ) </MESSAGE>
>      <TIME> 'Tue, 01 Jan 2002 20:27:50 +0000' </TIME>
>   </LOCAL>
>
>
>
>but my test 
>
><xsl:if test="not(CHARACTER_ID[. = preceding::CHARACTER_ID])">
>
>seems to let them through. Any ideas?
>
>regards
>
>Ahmad
>
>
>
>At 23:29 22/04/02 +0100, you wrote:
>>
>>Stylesheet cut...
>>
>>> Is supposed to produce a list of unique character statuses and how many
>>> occurences of them there are.
>>>
>>> With the xml test below I get: -
>>>
>>> Number of Unique Characters 4
>>>
>>> STATUS  6   3
>>> STATUS  4   1
>>> STATUS  3   1
>>> STATUS  1   1
>>>
>>>
>>> Instead of
>>>
>>> Number of Unique Characters 4
>>>
>>> STATUS  6   1
>>> STATUS  4   1
>>> STATUS  3   1
>>> STATUS  1   1
>>>
>>> As the	<xsl:if test="not(CHARACTER_ID[. =
>>> preceding::CHARACTER_ID])"> path
>>> maybe at fault.
>>>
>>
>>In this case the first result is correct given the XML example. There are
>>three cases where
>>      <CHARACTER_ID> 10010 </CHARACTER_ID>
>>      <CHARACTER_STATUS> 6 </CHARACTER_STATUS>
>>
>>are used. So the instruction,
>>
>>	<xsl:value-of select="concat('STATUS ',CHARACTER_STATUS,
>>                                   '  ',count(key('kByID',CHARACTER_ID)),
>>                                   $NL)"/>
>>
>>Generates 'STATUS 6 3' because key(..) returns a nodeset of these three
>>elements. The <xsl:if ..> is actually redundant since vUniqueCharacters does
>>not contain any duplicates.
>>
>>On the second stylesheet you are referring to a MESSAGE attribute which does
>>not exist in the XML document. There is an element by that name but I can't
>>see how it is relevant to your stated goal of counting messages where
>>TARGET_CHARACTER_LOCATION_ID != LOCATION_ID
>>
>>Try replacing your vNumNotSame by this and it should fix the problem,
>>
>><xsl:variable name="vNumNotSame"
>>select="count(LOG/*[number(TARGET_CHARACTER_LOCATION_ID) !=
>>number(LOCATION_ID)])"/>
>>
>>I have used number() here to force number comparison otherwise you get
>>string comparisons which may or may not work depending on formatting.
>>
>>Regards,
>>Kev.
>>
>>
>>
>> XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list
>>
>>
>
>
> XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list
>
>


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