Path: csiph.com!fu-berlin.de!uni-berlin.de!not-for-mail
From: Mark Lawrence <breamoreboy@yahoo.co.uk>
Newsgroups: comp.lang.python
Subject: Re: Newbie: Check first two non-whitespace characters
Date: Thu, 31 Dec 2015 23:25:52 +0000
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On 31/12/2015 18:54, Karim wrote:
>
>
> On 31/12/2015 19:18, otaksoftspamtrap@gmail.com wrote:
>> I need to check a string over which I have no control for the first 2
>> non-white space characters (which should be '[{').
>>
>> The string would ideally be: '[{...' but could also be something like
>> '  [  {  ....'.
>>
>> Best to use re and how? Something else?
>
> Use pyparsing it is straight forward:
>
>  >>> from pyparsing import Suppress, restOfLine
>
>  >>> mystring = Suppress('[') + Suppress('{') + restOfLine
>
>  >>> result = mystring.parse(' [ { .... I am learning pyparsing' )
>
>  >>> print result.asList()
>
> ['.... I am learning pyparsing']
>
> You'll get your string inside the list.
>
> Hope this help see pyparsing doc for in depth study.
>
> Karim

Congratulations for writing up one of the most overengineered pile of 
cobblers I've ever seen.

-- 
My fellow Pythonistas, ask not what our language can do for you, ask
what you can do for our language.

Mark Lawrence