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Greg Bowyer  
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 More options Nov 11 2011, 12:57 am
From: Greg Bowyer <gbow...@fastmail.co.uk>
Date: Thu, 10 Nov 2011 21:57:58 -0800 (PST)
Local: Fri, Nov 11 2011 12:57 am
Subject: Cant figure out this error
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Hi all

My parser is as follows

_bool   = (Literal('true') | Literal('false')) >> bool
_float  = Real() >> float
_int    = Integer() >> int
_string = (AnyBut(Whitespace()))[...] >> unquote_plus

value  = (_float | _int | _bool | _string) & Eos()
pair   = Word() & Drop('=') & value     > tuple

d = Drop('{') & pair & Drop('}') > dict

I cant figure out why d.parse('{test1=test2}') fails what am I
missing ?


 
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andrew cooke  
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 More options Nov 11 2011, 5:44 am
From: andrew cooke <and...@acooke.org>
Date: Fri, 11 Nov 2011 07:44:59 -0300
Local: Fri, Nov 11 2011 5:44 am
Subject: Re: [LEPL] Cant figure out this error
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just looking at your code, you have an Eos() at the end of value.  that means
that the input must end after the value, while you have a "}".

there may be other problems, but that certainly won't help.

using TraceVariables is a good way to debug -
http://acooke.org/lepl/debugging.html#index-3 - it will show you how far you
matche, etc.

andrew


 
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