Re: [Pyparsing] White space

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

Hi,

Paul McGuire wrote:
> > from pyparsing import Word, alphas
> > g = "$" + "as" + Word(alphas)
> > g.parseString('$ as abc')
> > ParseException: Expected "$as" (at char 0), (line:1, col:1)
>
> Here's your definition of g
> >>> g = "$" + "as" + Word(alphas)
> >>> print g
> {"$as" W:(abcd...)}
>
> "$" + "as" gets interpreted by Python as the addition of two strings,
> resulting in "$as".

I guess yet another way, keyword issue aside, is to alter the
associativity with parenthesis?

    >>> g = "$" + ("as" + Word(alphas))
    >>> print g
    {"$" {"as" W:(abcd...)}}
    >>> g.parseString('$ as abc')
    (['$', 'as', 'abc'], {})
    >>>

Cheers, Ralph.