Config parser module
qqcq6s59 at gmail.com
qqcq6s59 at gmail.com
Tue Sep 27 11:47:13 EDT 2005
wow,
Thanks alex, this rocks really, [ i am new to OOP style in python]
I am trying to implement it on similar lines,
I`ll comeback if I encounter any trouble.
thanks again
-Jiro
Paul McGuire wrote:
> <qqcq6s59 at gmail.com> wrote in message
> news:1127489369.091513.206040 at g49g2000cwa.googlegroups.com...
> > Hi all
> > I am a newbie and I just saw a ongoing thread on Fileprocessing which
> > talks abt config parser.
> > I have writen many pyhton program to parse many kind of text files by
> > using string module and regex. But after reading that config parser
> > thread I feel stunned.
> >
> > Can somebody tell me some intro info how to parse huge data (most of
> > them are input data to application softwares like nastran, abaqus etc)
> >
> > Recently I saw a great work by John on Nastran file parser (i am still
> > trying to understand the program,
> > http://jrfonseca.dyndns.org/svn/phd/python/Data/Nastran/
> >
> > An example of dat may be like this, (part of)
> > (say point id coordinateSysNo x,y,z ...)
> > GRID 1 12478.0 0.0 256.75 1
> > GRID 2 12357.25 0.0 256.75 1
> > GRID 3 12357.25 0.0 199.0 1
> > (say Elementtype id property point1 point 2 point3 point4 etc)
> > CQUAD4 7231 21 5691 5700 5701 56920.0
> >
> > CQUAD4 7232 21 5692 5701 5702 56930.0
> >
> > CQUAD4 7233 21 5693 5702 5703 56940.0
> >
> > the data file is very complex if i consider all complexities)
> >
> > Is is possible to use config parser module insome way for this. I also
> > have few perl parser (for some part for some particular tasks) and now
> > changing them to python. (I feel perl regex combination is very easy to
> > learn and very powerfull)
> >
> > Any information will be appreciated.
> >
> > -jiro
> >
>
> Here's some sample code that might give you some ideas.
>
> -- Paul
>
>
> data = """\
> GRID 1 12478.0 0.0 256.75 1
> GRID 2 12357.25 0.0 256.75 1
> GRID 3 12357.25 0.0 199.0 1
> CQUAD4 7231 21 5691 5700 5701 56920.0
> CQUAD4 7232 21 5692 5701 5702 56930.0
> CQUAD4 7233 21 5693 5702 5703 56940.0
> """
>
> class Node(object):
> def __init__(self,s):
> self.__dict__.update( zip(self.getInitVarNames(), s.split()) )
>
> def __str__(self):
> return "%s %s" % (self.__class__.__name__, self.__dict__)
>
> class GridNode(Node):
> def getInitVarNames(self):
> return "id,x,y,z,other".split(',')
>
> class Cquad4Node(Node):
> def getInitVarNames(self):
> return "id,p1,p2,p3,p4,other".split(',')
>
>
> # define mapping of leading keyword to class name
> typeNodeClassMap = {
> "GRID" : GridNode,
> "CQUAD4" : Cquad4Node,
> }
>
> def makeNode(s):
> nodeType,nodeArgs = s.split(" ",1)
> nodeClass = typeNodeClassMap[nodeType]
> return nodeClass( nodeArgs )
>
> for line in data.split("\n"):
> if line:
> n = makeNode(line)
> print n
More information about the Python-list
mailing list