David Megginson
> Norman Vine writes:
>
> > If you are comfortable with Python
> >
> > You can define your objects in Python
> > and then dump their XML representation :-)
>
> A useful XML spec is one that abstracts out the implementation
> differences among various programming languages and applications, so
> that it can be used in ways not originally planned. For example, this
> is useful and usable by many apps (and human-readable):
>
> <airport id="CYOW">
> <name>MacDonald-Cartier International Airport</name>
> <icao-airport-code>CYOW</icao-airport-code>
> <iso-country-code>CA</iso-country-code>
> <position>
> <lat-deg>45.318783</lat-deg>
> <lon-deg>-075.669678</lon-deg>
> <elev-ft>374</elev-ft>
> </position>
> </airport>
All depends on what you are used to I guess
for example I much prefer writing my XML as
a simple and IMHO more easily read python dictionary
i.e. using your example
<627> tmp
$ cat apt.py
from xmlify import *
airport = {
'id': "CYOW",
'name': "MacDonald-Cartier International Airport",
'icao-airport_code': "CYOW",
'iso-country-code': "CA",
'position': { 'lat-deg': 45.318783,
'lon-deg': -75.669678,
'elev-ft': 374.0 }
}
xmlify(airport,"airport")
*** Which when run gives me the desired XML
<628> tmp
$ python apt.py > apt.xml
<629> tmp
$ cat apt.xml
<airport>
<id>CYOW</id>
<name>MacDonald-Cartier International Airport</name>
<position>
<lat_deg>45.318783</lat_deg>
<elev_ft>374.0</elev_ft>
<lon_deg>-75.669678</lon_deg>
</position>
<icao_airport_code>CYOW</icao_airport_code>
<iso_country_code>CA</iso_country_code>
</airport>
*** Here is my little filter
<630> tmp
$ cat xmlify.py
""" simplistic filter to transform a python dictionary into XML """
dict_type={}
indent = ""
def xmlify(obj,name):
global indent
print indent+"<%s>"%(name)
if type(obj) == type(dict_type):
indent += " "
for key in obj.keys():
data = obj[key]
if type(data) == type(dict_type):
xmlify(data,key)
else:
data = str(data)
print indent+"<%s>%s</%s>"%(key,data,key)
indent = indent[:-2]
print indent+"</%s>"%(name)
Note as written this will only work with Dictionaries
but is easily extended if desired
Regards
Norman
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