Thank you PT, i got my point. :)
P T Withington wrote:
> On 2007-03-13, at 20:36 EDT, mt1 wrote:
>
>> Thank you PT, it is getting near to my point. :)
>> I can understand what the action of serialize().
>> But could not on xpathQuery().
>> According with you said 'raw data', i am wondering xpathQuery() should
>> return as same as seriarize(), that mean is '<ABCD>'.
>
>
> xpathQuery does not escape its result. This is intentional.
>
>> Do i misunderstand in 'raw data'?
>> And where does it parse from '<' to '<', *as or LPS?
>
>
> This happens in the XML parser (part of the LPS compiler). It is
> required by XML.
>
>> Thx
>> mt1
>>
>> P T Withington wrote:
>>
>>> When your .lzx file is parsed:
>>>
>>> <data><ABCD></data>
>>>
>>> will be stored internally as a data node with the text `<ABCD>`. You
>>> have to use < to get past the XML parser:
>>>
>>> <data><ABCD></data>
>>>
>>> would parse ABCD as an empty child node (and give an error because
>>> there is no matching end tag). `<` escapes the `<` past the XML
>>> parser, so that it is treated as text (or character data), rather than
>>> the beginning of an XML tag. You could also have said:
>>>
>>> <data><![CDATA[<ABCD>]]></data>
>>>
>>> `<![CDATA[` tells the XML parser to not treat `<` and `&` as special
>>> characters until the matching `]]>` is hit.
>>>
>>> Serialize will unescape the data contents because its contract is to
>>> create a representation that can be parsed (unserialized) back to the
>>> original data. So it shows `<ABCD>`. xpathQuery returns the raw
>>> data `<ABCD>`. If you want the result of the query to be escaped, you
>>> would have to do it yourself:
>>>
>>> Debug.write( "escaped dp xpathQuery: " + LzBrowser.xmlEscape
>>> (dp.xpathQuery("data/text()")) );
>>>
>>>
>>> On 2007-03-12, at 22:25 EDT, Daniel Williams wrote:
>>>
>>>> mt1,
>>>> I would think that Laszlo would call a 3rd party library for parsing
>>>> the XML.
>>>> You may want to ask the developers how they parse the XML for a
>>>> dataset.
>>>>
>>>> Happy hunting...
>>>>
>>>> -Daniel
>>>>
>>>> mt1 wrote:
>>>>
>>>>> Daniel,
>>>>>
>>>>> Thank you for your point.
>>>>> And i am sorry cause of my dump, but i do not understand what you
>>>>> said.
>>>>> I know i am using a strict character.
>>>>> My question is
>>>>> 1. described in the dataset tag &#60;ABCD&#62;
>>>>> 2. when using serialize() &#60;ABCD&#62;
>>>>> 3. when using xpathQuery() <ABCD>
>>>>>
>>>>> In the case of 2, transferred '&' to '&'.
>>>>> In the case of 3, transferred '&' to '&'.
>>>>> And in the example code of setText() transferred '<' to '<' when
>>>>> it shown in then view.
>>>>>
>>>>> where those are converted to ? *.as, *.lzx or LPS ?
>>>>> I could not find out the converting mechanism of strict characters.
>>>>>
>>>>> Give me some hints.
>>>>>
>>>>> mt1
>>>>>
>>>>> Daniel Williams wrote:
>>>>>
>>>>>> mt1,
>>>>>> I missed the #38 before the ">", that's way it was displayed in the
>>>>>> debug window.
>>>>>> So the data should read &#60;ABCD&#62;
>>>>>>
>>>>>> My point is this http://www.w3.org/TR/REC-xml/#sec-external- ent,
>>>>>> your
>>>>>> working with XML which has a strict character set.
>>>>>>
>>>>>> -Daniel
>>>>>>
>>>>>>
>>>>>> mt1 wrote:
>>>>>>
>>>>>>> Thank you Daniel, but I am getting confuse more.
>>>>>>> Your code has shown "<ABCD> " in the debug window and
>>>>>>> "<ABCD>" in
>>>>>>> the text area.
>>>>>>> That mean xpathQuery() could not handle '&#60;' but <text> tag
>>>>>>> could
>>>>>>> do it, right?
>>>>>>> Where your point is ?
>>>>>>>
>>>>>>> Thx
>>>>>>> mt1
>>>>>>>
>>>>>>> Daniel Williams wrote:
>>>>>>>
>>>>>>>
>>>>>>>> mt1,
>>>>>>>> I don't think this is a Laszlo code issue. You may need to use the
>>>>>>>> numeric reference , here is a list.
>>>>>>>>
>>>>>>>> Ampersand & & &#38;
>>>>>>>> Left angle bracket < < &#60;
>>>>>>>> Right angle bracket > > >
>>>>>>>> Straight quotation mark " " '
>>>>>>>> Apostrophe ' ' "
>>>>>>>>
>>>>>>>>
>>>>>>>> Try this code out if you want to display "<ABCD>" to the user,
>>>>>>>> FYI I'm
>>>>>>>> running 3.3.3 .
>>>>>>>>
>>>>>>>> <canvas debug="true">
>>>>>>>> <dataset name="ds">
>>>>>>>> <data>&#60;ABCD></data>
>>>>>>>> </dataset>
>>>>>>>>
>>>>>>>> <handler name="oninit">
>>>>>>>> var dp = new LzDatapointer();
>>>>>>>> dp.setPointer(ds);
>>>>>>>>
>>>>>>>> Debug.write( "dp serialize : " + dp.serialize() );
>>>>>>>> Debug.write( "dp xpathQuery: " + dp.xpathQuery("data/text()") );
>>>>>>>>
>>>>>>>> var text = dp.xpathQuery('data/text()');
>>>>>>>> testText.setAttribute('text', text);
>>>>>>>>
>>>>>>>> </handler>
>>>>>>>>
>>>>>>>> <view bgcolor="blue" width="100" height="100">
>>>>>>>> <text id="testText" resize="true" text="Hello"/>
>>>>>>>> </view>
>>>>>>>> </canvas>
>>>>>>>>
>>>>>>>> Just my 2 cents.
>>>>>>>> -Daniel
>>>>>>>>
>>>>>>>> mt1 wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>>> Any hints?
>>>>>>>>>
>>>>>>>>> mt1 wrote:
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>> Yes i thought so, but there were not it in xpathQuery()
>>>>>>>>>> method or
>>>>>>>>>> *.as files.
>>>>>>>>>> So i confused where it has been done.
>>>>>>>>>> You can see that where is ?
>>>>>>>>>>
>>>>>>>>>> Thanks
>>>>>>>>>> mt1
>>>>>>>>>>
>>>>>>>>>> Not Zippy wrote:
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>> I believe the data is being unescaped.
>>>>>>>>>>> Debug.write(unescape("<ABCD>") )
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> On 3/5/07, *mt1* < [EMAIL PROTECTED]
>>>>>>>>>>> <mailto:[EMAIL PROTECTED]>>
>>>>>>>>>>> wrote:
>>>>>>>>>>>
>>>>>>>>>>> Hi forks,
>>>>>>>>>>>
>>>>>>>>>>> I am wondering how to handle a escape characters in
>>>>>>>>>>> LzDatapointer.xpathQuery().
>>>>>>>>>>> This is a example code.
>>>>>>>>>>>
>>>>>>>>>>> <canvas debug="true">
>>>>>>>>>>> <dataset name="ds">
>>>>>>>>>>> <data><ABCD></data>
>>>>>>>>>>> </dataset>
>>>>>>>>>>>
>>>>>>>>>>> <handler name="oninit">
>>>>>>>>>>> var dp = new LzDatapointer();
>>>>>>>>>>> dp.setPointer(ds);
>>>>>>>>>>>
>>>>>>>>>>> Debug.write( "dp serialize : " + dp.serialize() );
>>>>>>>>>>> Debug.write( "dp xpathQuery: " + dp.xpathQuery("data/text
>>>>>>>>>>> ()") );
>>>>>>>>>>> </handler>
>>>>>>>>>>> </canvas>
>>>>>>>>>>>
>>>>>>>>>>> You can see the data with escaped in <dataset> tag.
>>>>>>>>>>> And the first debug line ( using serialize() ) shows the
>>>>>>>>>>> strings
>>>>>>>>>>> without
>>>>>>>>>>> modification,
>>>>>>>>>>> but the second debug line ( using xpathQuery() ) shows "<ABCD>"
>>>>>>>>>>> out of
>>>>>>>>>>> the way by
>>>>>>>>>>> operating unescaped.
>>>>>>>>>>> I took a look around LzDatapointer.as or LzDataElement.as, but
>>>>>>>>>>> xpathQuery() do not
>>>>>>>>>>> translate from '>' to '<' anywhere.
>>>>>>>>>>>
>>>>>>>>>>> Please let me know why xpathQuery() can do such like that ?
>>>>>>>>>>>
>>>>>>>>>>> mt1
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>>
>>>
>>
>
>
>
