[Lazarus] [ANN] Xavier for XML — Compatible with FPC and Delphi

[R0b0t1]

On Wed, Sep 20, 2017 at 5:33 PM, Michael Van Canneyt via Lazarus
<lazarus at lists.lazarus-ide.org> wrote:
>
>
> On Wed, 20 Sep 2017, Marcos Douglas B. Santos via Lazarus wrote:
>
>> On Wed, Sep 20, 2017 at 4:31 PM, Michael Van Canneyt via Lazarus
>> <lazarus at lists.lazarus-ide.org> wrote:
>>>
>>>
>>>
>>> On Wed, 20 Sep 2017, Marcos Douglas B. Santos via Lazarus wrote:
>>>
>>>> Hi,
>>>>
>>>> I'm working in my new "pet project" called Xavier.
>>>> Xavier is an object-oriented library for work with XML.
>>>
>>>
>>>
>>> I don't understand the 'why' ? Should I understand that you consider the
>>> DOM
>>> units not object-oriented ?
>>
>>
>> Yes and no.
>>
>> Michael, with all my respect, that depends of your view about Object
>> thinking.
>> Yes, DOM uses classes and objects, but IMO Objects is more than that.
>> Objects are more close to Functional programming than most people think.
>
>
> As I understand it, objects are exactly the opposite of functional
> programming,
> in that they encapsulate state, and functional programming wants to avoid
> state (variables, if you want).
>

You can think of an object's data as a monad's data, and the methods
in the objects in a hierarchy as the various monadic functions which
operate on that data.

In a typical functional language the monadic functions and their
arguments do not have any hierarchical relation.

>> If can code classes but if you are implementing (all) in an imperative
>> way, I mean line by line telling the computer how to do something
>> instead of code what you just want, you may not are thinking in terms
>> of Objects. Your class, in these cases, is just a "bucket of data and
>> procedures".
>
>
> Yes. That's what an object is.
>
>>
>> In a perfect design, we may only connect all objects to work in a
>> "task", call "run", and "they" will know what to do.
>
>
> Ah. You just replace methods by objects.
>
> You should be programming Java:
> https://steve-yegge.blogspot.be/2006/03/execution-in-kingdom-of-nouns.html
>
> I prefer imperative programming. (verbs, if you want). It comes more
> natural.
>
> Well, each his own style. But, if you allow me: the post on the lazarus
> forum and the Xavier page should really explain what you mean by OOP. I
> guess most people will be confused, as I am.
>
> Thanks for explaining.
>
> Michael.
>
> --
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