Re: [Pyparsing] Help using Combine()

[Joshua J. K. <jk...@sk...>]

Sigh...I went back and re-read the docs and saw the part about adjacent.
Problem solved.  Sorry about the noise.

j

On Wed, 2008-03-05 at 12:39 -0900, Joshua J. Kugler wrote:
> I have this construct:
> 
> primary_key = (p.CaselessKeyword('primary') +
>                p.CaselessKeyword('key') +
>                p.Or([p.CaselessKeyword('clustered'), p.CaselessKeyword('nonclustered')]) +
>                p.nestedExpr(content=p.delimitedList(bracket_quoted.setResultsName('key_column'))) +
>                p.CaselessKeyword('on').suppress() +
>                bracket_quoted.suppress()
>                )
> 
> which I'm using to parse:
> 
> PRIMARY KEY CLUSTERED ([login_id]) ON [PRIMARY]
> 
> All is well, and that gives:
> 
> ['primary', 'key', 'clustered', ['login_id']]
> 
> I'd like that first element to be 'primary key' so I do:
> 
> primary_key = (p.Combine(p.CaselessKeyword('primary') +
>                p.CaselessKeyword('key'), joinString=' ') +
>                p.Or([p.CaselessKeyword('clustered'), p.CaselessKeyword('nonclustered')]) +
>                p.nestedExpr(content=p.delimitedList(bracket_quoted.setResultsName('key_column'))) +
>                p.CaselessKeyword('on').suppress() +
>                bracket_quoted.suppress()
>                )
> 
> But that gives me: 
> 
> ParseException: Expected "key" (at char 7), (line:1, col:8)
> 
> So apparently I'm not using Group as intended, and the docs don't
> provide an example of use.  Might someone point me to the docs that
> explain how to accomplish what I'm trying to do?
> 
> Thanks!
> 
> j
> 
-- 
Joshua Kugler
VOC/SigNet Provider (aka Web App Programmer)
S&K Aerospace Alaska