"glomde" <[EMAIL PROTECTED]> writes:
> With element tree package.
>
> # build a tree structure
> root = ET.Element("html")
> head = ET.SubElement(root, "head")
> title = ET.SubElement(head, "title")
> title.text = "Page Title"
> body = ET.SubElement(root, "body")
> body.set("bgcolor", "#ffffff")
> body.text = "Hello, World!"
>
>
>
> With syntactical sugar:
>
> # build a tree structure
> root = ET.Element("html")
> *!*root:
> *!*head("head"):
> *!*title("title):
> *=*text = "Page Title"
> *!*body("body"):
> *=*bgcolor = "#ffffff"
> *=*text = "Hello, World!"
We already have syntax for building hierarchical data structures:
lists and/or tuples. If you want to define Node and Attribute classes,
you can already do so without adding new syntax.
> I think that with the added syntax you get better view of the html
> page.
I think indenting our existing data type syntax can do the same thing:
root = Node("html", children=[
Node("head", children=[
Node("title", children=[
"Page Title",
])
]),
Node("body", children=[
Attribute("bgcolor", "white"),
"Hello, World!",
]),
])
Set up the __init__ for those classes to do whatever you would have
done with the syntax you proposed.
> Repeating things dissapears and you get indentation that corresponds
> to the tree.
Indeed.
> I think it is very pythonic IMHO.
Adding new punctuation to deal with a particular type is extremely
un-Pythonic.
--
\ "The cost of a thing is the amount of what I call life which is |
`\ required to be exchanged for it, immediately or in the long |
_o__) run." -- Henry David Thoreau |
Ben Finney
--
http://mail.python.org/mailman/listinfo/python-list
