Pyparsing Question
Paul McGuire
ptmcg at austin.rr.com
Fri May 16 11:37:44 EDT 2008
On May 16, 6:43 am, Ant <ant... at gmail.com> wrote:
> Hi all,
>
> I have a question on PyParsing. I am trying to create a parser for a
> hierarchical todo list format, but have hit a stumbling block. I have
> parsers for the header of the list (title and description), and the body
> (recursive descent on todo items).
>
LineStart *really* wants to be parsed at the beginning of a line.
Your textline reads up to but not including the LineEnd. Try making
these changes.
1. Change textline to:
textline = pp.Combine(
pp.Group(pp.Word(pp.alphas, pp.printables) + pp.restOfLine)) +
\
pp.LineEnd().suppress()
2. Change comb to:
comb = head + parser
With these changes, my version of your code runs ok.
-- Paul
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