Alexsandro,
I don't know about Parsatron, but Parse-EZ (
https://github.com/protoflex/parse-ez) provides the 'line-pos' function
that returns the line and column info.
Here is the equivalent code for your example using Parse-EZ:
--------------
(use 'protoflex.parse)
(defn anbn []
(let [as (regex #"a+")
bs (string (apply str (repeat (count as) \b)))]
(str as bs)))
(defn xdny [] (regex #"xd+y"))
(defn pL [] (any anbn xdny))
-------------
and you call your pL function through the parser entry function "parse":
user=> (parse pL "xddy")
"xddy"
user=> (parse pL "aabb")
"aabb"
user=> (parse pL "aac")
Parse Error (exception thrown)
On Thursday, August 23, 2012 7:54:16 PM UTC+5:30, Alexsandro Soares wrote:
>
> Ok. Thanks for the answer.
>
> Is there any way to get the line and column?
>
> For example, in this parser
>
> (defparser ident []
> (>> (letter) (many (either (letter) (digit)))))
>
> I want the token and the initial line and column. How can I change this
> code?
>
> Cheers,
> Alex
>
>
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