pyparsing-users

[Pyparsing] Issue with sexpparser example

[Sebastian W. <seb...@ne...>]

Hi,

 

I am playing with the sexpparser example by Paul.

 

I found that parsing '(a b c)' gives the same result of parsing '(a b "c")'
and this can be problematic since c is different than "c". Is that correct?
I think the correct result will be to result in an string.

 

Thanks,

Sebastian

 

Re: [Pyparsing] Issue with sexpparser example

[Sebastian W. <seb...@ne...>]

Changing the line with: qString =
Group(Optional(decimal,default=None)("len") +
dblQuotedString.setParseAction(removeQuotes)).setParseAction(verifyLen)

to: qString = Group(Optional(decimal,default=None)("len") +
dblQuotedString).setParseAction(verifyLen)

Works fine. There are any other issue with this change?

Thanks,
Sebastian


-----Original Message-----
From: Sebastian Wain [mailto:seb...@ne...] 
Sent: Saturday, April 28, 2012 1:37 PM
To: pyp...@li...
Subject: [Pyparsing] Issue with sexpparser example

Hi,

 

I am playing with the sexpparser example by Paul.

 

I found that parsing '(a b c)' gives the same result of parsing '(a b "c")'
and this can be problematic since c is different than "c". Is that correct?
I think the correct result will be to result in an string.

 

Thanks,

Sebastian

 

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Re: [Pyparsing] Issue with sexpparser example

[Paul M. <pt...@au...>]

If you want to preserve the quotation marks, then this is just how to do it.

-----Original Message-----
From: Sebastian Wain [mailto:seb...@ne...] 
Sent: Saturday, April 28, 2012 12:53 PM
To: pyp...@li...
Subject: Re: [Pyparsing] Issue with sexpparser example

Changing the line with: qString =
Group(Optional(decimal,default=None)("len") +
dblQuotedString.setParseAction(removeQuotes)).setParseAction(verifyLen)

to: qString = Group(Optional(decimal,default=None)("len") +
dblQuotedString).setParseAction(verifyLen)

Works fine. There are any other issue with this change?

Thanks,
Sebastian


-----Original Message-----

I found that parsing '(a b c)' gives the same result of parsing '(a b "c")'
and this can be problematic since c is different than "c". Is that correct?
I think the correct result will be to result in an string.