* Ladislav Mecir <[EMAIL PROTECTED]> [050731 14:04]:
>
> Tim Johnson napsal(a):
>
> ...
>
> > That's almost pythonistic in it's engineering (from me that's a
> > complement) :-). However, if I understand you correctly, it would
> > be as large and repetitive as the original switch.
> >
> >
> ...
>
> If that is the case, then it is highly probable, that the design issue
> is deeper than you presented and the solution should be more complex. I
> have some code that solves such issues in a more elegant way (using
> associative arrays e.g.), but that is a "higher level" solution, i.e. it
> was possible only when I knew the actual problem more thoroughly than
> you described in your question.
I spend (roughly) equal times in python and rebol. After being up to
my elbows in python, it is always refreshing to get back to rebol, but
when I switch from rebol to python, I find myself enjoying python
dictionaries, both the explicit ones and the builtin _dict_
structures.
# Example: explicit
def do_sql(name,layout):
dispatch = {
'radio':kbLists.do_sql_radio(),
'text':kbLists.do_sql_text(),
'textarea':kbLists.do_sql_textarea(),
'decimal':kbLists.do_sql_decimal(),
'uinteger':kbLists.do_sql_uinteger(),
'select':kbLists.do_sql_select(),
'date':kbLists.do_sql_date(),
'checkbox':kbLists.do_sql_checkbox(),
'password':kbLists.do_sql_text(),
}
return ' %s %s,' % (name,dispatch[layout['type']])
# Example: using builtin _dict_ in class constructor
def __init__(self, url='', text='', **kw):
self.target = None
self.onClick = None
self.onMouseOver = None
self.onMouseOut = None
self.url = url
self.text = text
# target ... text constitutue self.__dict__ when they are
# preceded by 'self.'
for item in kw.keys():
if self.__dict__.has_key(item):
self.__dict__[item] = kw[item]
else:
raise KeyError, `item`+' not a valid parameter for this class.'
I've written an associative list context for rebol but it is very simple
and does not well employ rebol's reflective and self-composing features.
I seldom use it directly but from another context.
I have found that sometimes when you use examples of another language in
a specific language forum, some might protest, but for me, it is
oftentimes productive to work out a solution in one language and
translate to another.
In the days of slower processors, python was often used to prototype
code that was then translated to C or C++, or so it did advertise
itself.
Tim
--
Tim Johnson <[EMAIL PROTECTED]>
http://www.alaska-internet-solutions.com
--
To unsubscribe from the list, just send an email to
lists at rebol.com with unsubscribe as the subject.
