Re: [Pyparsing] How to get to a specific block of text I need

[Ralph C. <ra...@in...>]

Hi Malahal,

> export {
>      path = path1;
>      key2 = value2;
>      client {
>            clientid = value3;
>            key4 = value4;
>     }
>     client {
>            clientid = value6;
>     }
> }
...
> Given an export path, I would like to fetch the corresponding export
> block.

This sounds more like a Python programming problem than Pyparsing.  You
want to build a `dict' indexed by an export's `path' as you're parsing.
https://docs.python.org/3/tutorial/datastructures.html#dictionaries

The value for a key would be a data of your design that describes an
export.  Lookup would then be

    exports['path1']

> Similarly, for a given path and clientid, I would like to get the
> corresponding "client" block quickly

Same here, except you have a dict of dicts.

    clients['path1']['value3']

Or you might make the information available as part of your exports dict
if the value was an object with a `clients' attribute that was a dict.

    exports['path1'].clients['value3']

-- 
Cheers, Ralph.
https://plus.google.com/+RalphCorderoy