| Re: read XML with IDL [message #71755 is a reply to message #71668] |
Wed, 14 July 2010 12:16  |
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Karl[1]
Messages: 79
Registered: October 2005
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On Jul 14, 7:58 am, kBob <krd...@gmail.com> wrote:
> On Jul 14, 3:59 am, sh <sebastian.h...@gmail.com> wrote:
>
>
>
>> Hello together,
>
>> I already searched in the archive, but I didn't find a clear answer.
>
>> Every time you want to read .xml files, you have to write your own
>> parser (e.g. .edit xml_to_struct__define.pro) right?
>
>> But is there a possibilty to build up a struct automatically? E.g. the
>> input .xml file
>
>> <Solar_System>
>> <Planet NAME='Mercury'>
>> <Orbit UNITS='kilometers' TYPE='ulong64'>579100000</Orbit>
>> <Period UNITS='days' TYPE='float'>87.97</Period>
>> <Satellites TYPE='int'>0</Satellites>
>> </Planet>
>> ...
>> </Solar_System>
>
>> output in IDL (structs within a "main" struct) the name of struct and
>> tags depends on the name of elements and the attributes
>
>> solar_system={solar_system,planet:{planet,orbit:
>> {orbit,units:'kilometers',type:'ulong64',value:'579100000'}, period:
>> {period,units:'days',type:'float',value:'87.97'},satellites:
>> {satellites,type:'int',value:'0'}}}
>
>> print, solar_system.planet.orbit
>> { kilometers ulong64 579100000}
>
>> print, solar_system.planet.orbit.value
>> 579100000
>
>> My questions are now: Should I write my own parser? Should I wait for
>> IDL8, maybe there are more adv. features for XML? Or does someone have
>> already such a routine?
>
>> thanks,
>> Sebastian
>
> Have you looked into xml_to_struct__define.pro example provided with
> the IDL distribution?
>
> I would think you have, as ths Solar System XML is the example they
> use to turn into a structure.
>
> IDL Help provides a tutorial for this example code.
>
> Kelly Dean
> Fort Collins, CO
IDLffXMLSAX
and
IDLffXMLDOM
are two XML parsers that come with IDL. I think that the SAX parser
would help here.
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