Re: [Pyparsing] pyparsing svg - noob

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

Hi Donn,

> from pyparsing import Word, Literal, alphas, nums, Optional, OneOrMore
> 
> command = Word("MLCZ")
> comma = Literal(",")
> dot = Literal(".")
> float = nums + dot + nums
> couple = float + comma + float
> 
> phrase = OneOrMore(command + OneOrMore(couple |  ( couple + couple ) ) )

nums is just str('0123456789') so you're saying that you literally want
'0123456789.0123456789' for every float.  Change it to

    float = Word(nums) + dot + Word(nums)

and all will be fine.

You may find it's better to check you've the right number of couples
depending on which command it is though, e.g. the grammar says

    move = Literal('M') + couple
    command = ... | move | ...

Cheers,


Ralph.