You're using a lot of /.*/, which is rarely a good idea. Could you provide an example of a string that does not parse with the lens I provided, and the tree you expect the lens should produce from it?
Regards, Raphaël On Sun, Jun 29, 2014 at 8:37 AM, Yclept Nemo <[email protected]> wrote: > Thanks, > > Now I'm using your example as guidance since there was one additional > restriction I failed to demonstrate. Unfortunately my schema generates an > "ambiguous tree iteration" exception: > > let option = key /[A-Z_]+/ > let value = Sep.colon . Sep.opt_space . store /[^] > \t\n:]+/ . Sep.opt_space > let values = counter "value" . [ seq "value" . value ] + > let setting = [ Util.del_str "[" . option . values . > Util.del_str "]" ] > let comment (r:regexp) = del r "" > let entry = > let not_setting = /.*/ - ( lens_ctype setting . /.*/ ) > in setting . comment /.*/ | comment not_setting > let line = entry . Util.del_str "\n" > let lns = line * > > given the input [1] > > If I understand regex subtraction correctly, "re1 - re2" is interpreted as > the set of all possible matches generated by re2 subtracted from the set of > all possible matches generated by re1. However this generates massively > long and complex regexes, is this possibly the root of the problem? > > Anyway I'm grateful for your help and I apologize for responding so late > and not having provided a proper example. > > Sincerely, > -- Raphaël Pinson Infrastructure Developer & Trainer +33 479 26 57 93 +33 781 90 00 79 Camptocamp France Savoie Technolac BP 352 48, avenue du Lac du Bourget 73372 Le Bourget du Lac, Cedex www.camptocamp.com
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