Re: [xsl] Basics of XSLT

[himanshu padmanabhi <himanshu.padmanabhi@xxxxxxxxx>]

Thank you all,I am going through XSLT Programmers Reference from 'Michael
Kay'.
First 2 chapters clarified all my basic doubts about XSLT.
I am very thankful to the author for such a nice book.

One doubt at this stage.I am passing arguments to XSL file using perl
script like this,

my $results = $stylesheet->transform($source,
XML::LibXSLT::xpath_to_string(cnt => "1",idx =>     "$in{'idx'}",new
=> "$in{'new'}"));

In my template rule,I am declaring it,as I want to pass them to next form.
    <xsl:param name="cnt" select="$cnt" />
    <xsl:param name="idx" select="$idx" />
    <xsl:param name="new" select="$new" />

   <form name='myfrm' method='POST' action='logic.cgi'>
        <input type="hidden" name="name_idx" value="{$idx}" />
        <input type="hidden" name="name_new" value="{$new}" />
        <input type="hidden" name="name_cnt" value="{$cnt}" />
    </form>

In this case,why do I need to declare these using <xsl:param>? Because
without specifying this also,I am able to pass values to next form.

On Wed, Mar 11, 2009 at 4:38 PM, Manuel Souto Pico
<manuel.souto@xxxxxxxxxxxxxx> wrote:
>
> Hi,
>
> I only used two books about XSLT, the first one was a couple of years ago
and I can't remember the title, but I couldn't make much out of it. The second
one (by Michael Kay) I'm reading it now in my free time and I can say
everything is as clear as can be for a full beginner like me with no formal
background in computing. I feel thankful to Michael for that.
>
> Cheers, Manuel
>
>
> Michael Kay escribis:
>>>
>>> Hi,I am having few very basic XSL questions.
>>>
>>
>> Yes, we noticed. It's good that you have recognized that it's going to be
>> difficult to get your code to work unless you have understood the basic
>> concepts first.
>>
>> But mailing lists and forums aren't a good way of acquiring this
>> information. I'm a firm believer that the best way to get yourself up to
>> speed on a new technology is to spend a day or two immersed in a good
book.
>> I could give you one-liner answers to your questions below, but you really
>> need to read a few pages on each of these questions, which you will find
in
>> the opening chapter of any decent XSLT reference book (including, of
course,
>> my own.)
>>
>> Michael Kay
>> http://www.saxonica.com/
>>
>>
>>>
>>> 1.Why XSLT is actually used?and what it is exactly?
>>>
>>>     My understanding is,it is HTML code only and XSLT can read XML file
with more ease.So one should use XSLT.
>>>     We specity it using <xsl:output method="html"/> means there should be
other output forms also.
>>>
>>> 2.I am using XPATH to pass arguments in my perl code.
>>>
>>>  my $results = $stylesheet->transform($source,
XML::LibXSLT::xpath_to_string(args => "$in{'args'}",val => "1")); .
>>>     What is XPATH?and what is its significance?What this function
"XML::LibXSLT::xpath_to_string" will do?
>>>
>>> 3. <xmlns:xsl="http://www.w3.org/1999/XSL/Transform";> Why this is required
at start of every XSL file?
>>>
>>>     I think all the namespaces are defined there,all XSL elements refer
to/use to this location.
>>> ---------------------------------------
>>> Thanks and Regards,
>>> Himanshu Padmanabhi
>



--
---------------------------------
Thanks and Regards,
Himanshu Padmanabhi