For a completely different (though still declarative) take on getting
data from markup -
https://blog.jonudell.net/2022/12/09/when-your-database-is-an-http-client/
On 12/9/2022 4:14 AM, Dave Pawson wrote:
> Sorry Rick, I was expanding on your input, not correcting your suggestions,
> i.e. suggesting what I needed when first faced with James xslt 1 offering.
>
> regards
>
> On Fri, 9 Dec 2022 at 08:40, Rick Jelliffe <> wrote:
>>
>>
>>
>> On Fri, 9 Dec 2022, 7:06 pm Dave Pawson, <> wrote:
>>>
>>> Yes, but Rick....
>>>
>>> On Fri, 9 Dec 2022 at 07:01, Rick Jelliffe <> wrote:
>>>>
>>>> Most basic?
>>>>
>>>> 1. Push versus pull.
>>>
>>> Not enough? Why? explain these please? What's the impact of wrong choice?
>>> When to 'break' this rule (guidance)
>>
>>
>> Pull programming is where you pull in values into a template. Push programming is where the structure of the incoming document determines the templates that are run.
>>
>>
>>>> 2. Event-based programming = template matching descent default
>>>
>>> Wozzat?
>>> Template match? Never heard of it.
>>> Descent... of what? Why default? alternatives
>>
>>
>> <xsl:template match="..."
>> <xsl:apply-templates />
>>>
>>>
>>>> 3. XPaths 1.0 location steps, and value-of
>>> What, how does xpath help / cause problems?
>>> How used in this funny 'language'
>>> The real nugget of XSLT, but quite alien to procedural programmers?
>>
>>
>> Yes.
>>>
>>>
>>>> 4. If and choose
>>> Yep, at last, something most will recognise recognise!
>>> But where is my 'repeat until'?
>>
>>
>> Xsl has if and choose. It does not have repeat until: it uses Xpath for that.
>>>
>>>
>>>> 5. Rearranging and repeating things: variables, apply-templates/@select, modes
>>> I'd split
>>> Rearranging and repeating things, again quite key (why etc...)
>>> variables? Oh no they're not.
>>> (hope apply templates explained before now)
>>> BIG session on select 'rules'
>>> modes? Another foreign language.
>>>
>>>>
>>>> Not basic: key, function, anything in xpath 2 or 3 but not in xpath 1.
>>>
>>> +10
>>>
>>>
>>>
>>>>
>>>> In other words, developers should be trained to first use the distinctive language features before (and instead of) rushing to use generic (I.e. vanilla) functional features.
>>>
>>> +1
>>>
>>> Thanks Rick.
>>>
>>>
>>> regards
>>>
>>>
>>>
>>> --
>>> Dave Pawson
>>> XSLT XSL-FO FAQ.
>>> Docbook FAQ.
>
>
>
