Thanks, I'll try to make my function the more generic I can.
El martes, 2 de julio de 2013 21:01:00 UTC+2, Ondřej Čertík escribió:
>
> On Tue, Jul 2, 2013 at 12:32 PM, peibol <pab...@gmail.com <javascript:>>
> wrote:
> > I think xml2dict cannot accomplish it, since I get the same key for
> multiple
> > values...
> >
> > For example: mathml_prueba='''<mrow> <mfrac> <mrow> <mn>3</mn> </mrow>
> > <mrow> <mn>5</mn> </mrow> </mfrac> </mrow> '''
> >
> > I get the following dict:
> > {'mrow': {'mfrac': {'mrow': [{'mn': '3'}, {'mn': '5'}]}}}
> > Notice the merged 'mrow' key...
> >
> > Any suggestion for a xml lib to parse the expression?
>
> lxml seems to be able to parse the expression:
>
> http://nbviewer.ipython.org/5912034
>
> Ondrej
>
> >
> >
> > El martes, 2 de julio de 2013 19:53:28 UTC+2, peibol escribió:
> >>
> >> The mathdox box produces Presentation Mathml.
> >>
> >> Sympy produces Content Mathml in the printing module, but there is the
> c2p
> >> function in utils module that converts Content Mathml into Presentation
> >> Mathml.
> >>
> >> So I'm trying the xml2dict parsing with presentation mathml... I think
> >> that once I have the dict, at least for easy expressions like
> fractions,
> >> with addings, algebraic... it's nothing more than a -sophisticated-
> >> replacement with some parenthesis abuse.
> >>
> >> El martes, 2 de julio de 2013 19:38:08 UTC+2, Aaron Meurer escribió:
> >>>
> >>> Just to be clear, is this presentation mathml or content mathml? I
> >>> believe the latter would be much easier to parse.
> >>>
> >>> Aaron Meurer
> >>>
> >>> On Tue, Jul 2, 2013 at 12:03 PM, Ondřej Čertík <ondrej...@gmail.com>
> >>> wrote:
> >>> > On Tue, Jul 2, 2013 at 10:35 AM, Stefan Krastanov
> >>> > <krastano...@gmail.com> wrote:
> >>> >> I am sorry, I do not think there is an out-of-the-box way to do
> this
> >>> >> currently.
> >>> >>
> >>> >> What I can suggest is to use the xml2dict python library to parse
> the
> >>> >> openmath xml and then write your own small routine for traversing
> the
> >>> >> dictionary and transforming it into a sympy expression.
> >>> >>
> >>> >> If you do this I am sure that the sympy team would be very
> interested
> >>> >> to have your work merged.
> >>> >
> >>> > Absolutely. Pablo, if you would send us a PR that could do that,
> >>> > that would be awesome.
> >>> >
> >>> > Ondrej
> >>> >
> >>> >>
> >>> >>
> >>> >> On 2 July 2013 18:22, peibol <pab...@gmail.com> wrote:
> >>> >>> Hehe, they don't write the expression in MathML, I'm not that kind
> of
> >>> >>> demon.
> >>> >>>
> >>> >>> They enter expressions in a textarea by means of
> >>> >>> http://mathdox.org/formulaeditor/, from which I can get the
> openmath
> >>> >>> or the
> >>> >>> (presentation) mathml .The web app is for K12 students, well 12-16
> >>> >>> years
> >>> >>> old, so I think this way to enter mathematical expressions is one
> of
> >>> >>> the
> >>> >>> easiest...
> >>> >>>
> >>> >>> El martes, 2 de julio de 2013 18:17:19 UTC+2, Stefan Krastanov
> >>> >>> escribió:
> >>> >>>>
> >>> >>>> This is probably not very helpful, but why require the students
> to
> >>> >>>> write their results in MathML? It is not a very natural way to
> write
> >>> >>>> expression. On the other hand, if you use valid python expression
> it
> >>> >>>> would probably be much easier.
> >>> >>>
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