Thanks I will look into the two options carefully (XML and Blessed) Merry Chrismass ZA
On Thursday, December 18, 2014 12:21:11 PM UTC-5, Durand Jean-Damien wrote: > Zeev, > > It is not a hasard that I provided the XML stuff. Searching in XML using > XPath and nagivating in an XML is far easier that with Perl's blessed > structures. > > - printout the ast using > MarpaX::Languages::SQL2003::AST->new()->asXML($input)->toString(1) instead > of trying to digest the grammar > - you will see the hierarchy of what you are looking for > - use XPath > > Example in attachement on how to find the table names. > > If you insist on the blessed mode, perl people would suggest modules like > Data::Find or Data::Walk, I'd personnaly revisit > MarpaX::Languages::C::AST::Util::Data::Find > <https://github.com/jddurand/MarpaX-Languages-C-AST/blob/master/lib/MarpaX/Languages/C/AST/Util/Data/Find.pm>, > > taking into account that with MarpaX::Languages::SQL2003::AST, a lexeme is > a blessed hash that is guaranteed to have keys "start", "length", "text" > and "value", when an lhs is blessed array. > > Jean-Damien. > > Le jeudi 18 décembre 2014 16:11:37 UTC+1, Zeev Atlas a écrit : >> >> Thank you again for advice and support >> Is there any 'accessor' or a template for such an accessor for the >> blessed structure that is available anywhere in the Marpa world? (before I >> code such an accessor myself and risk being incompatible with next version.) >> ZA >> >> On Tuesday, December 16, 2014 12:39:00 PM UTC-5, Durand Jean-Damien wrote: >> >>> Ok, so I do nothing / JD. >>> >>> Le mardi 16 décembre 2014 07:16:38 UTC+1, [email protected] a écrit : >>>> >>>> Thank you... regardless, I tried your suggestion and will move to >>>> strawberry anyway, since I can install XML::LibXML and I guess anything >>>> else >>>> In any case, for my purpose, the AST is all what I need. I intend to >>>> write an application that analyze SQL statements and deduce source tables >>>> and where/join-on clauses, basically find the flow of data and put it in >>>> csv/excel format. >>>> ZA >>>> >>>> On Monday, December 15, 2014 11:30:00 PM UTC-5, Durand Jean-Damien >>>> wrote: >>>>> >>>>> Yes, this is easy... will keep you informed >>>>> >>>>> Le mardi 16 décembre 2014 04:46:43 UTC+1, Zeev Atlas a écrit : >>>>>> >>>>>> XML::LibXML is not available (yet) for ActiveState Perl 5.16 and >>>>>> above and I use 5.18. Is it possible to create a package that produces >>>>>> AST >>>>>> version only and does not have 'use XML::LibXML;' at all. I do not have >>>>>> too much experience with Linux (barely have one machine with Ubuntu). I >>>>>> will go for strawberry only if I have no other choice (because it >>>>>> resembles >>>>>> the Linux environment) >>>>>> Thanks >>>>>> ZA >>>>>> >>>>>> On Sunday, December 14, 2014 10:48:22 AM UTC-5, Durand Jean-Damien >>>>>> wrote: >>>>>>> >>>>>>> ActiveState will certainly work on that, I bet users of this >>>>>>> dsitribution can't stand without XML::LibXML for a while, usual bribes >>>>>>> or >>>>>>> whatever PPDs can perhaps help, although I guess you (perhaps) already >>>>>>> tried. >>>>>>> I personnaly stopped using this distribution in favour of >>>>>>> strawberry, that has both the advantage and drawback that it is not >>>>>>> using >>>>>>> nmake/cl. >>>>>>> >>>>>>> http://code.activestate.com/ppm/XML-LibXML/ >>>>>>> >>>>>>> JD. >>>>>>> >>>>>>> Le dimanche 14 décembre 2014 02:00:20 UTC+1, Zeev Atlas a écrit : >>>>>>>> >>>>>>>> Thanks again... I work on a Windows platform (active state Perl) >>>>>>>> and there is no XML::LibXML. I'll have to make some adjustments in >>>>>>>> the >>>>>>>> next few days or just look at the module and do my own. >>>>>>>> >>>>>>>> On Saturday, December 13, 2014 9:40:54 AM UTC-5, Durand Jean-Damien >>>>>>>> wrote: >>>>>>>>> >>>>>>>>> Zeev, >>>>>>>>> >>>>>>>>> Instead I invite you to try the sql2003toxml binary distributed >>>>>>>>> with MarpaX::Languages::SQL2003::AST, c.f. my g+ post >>>>>>>>> <https://plus.google.com/105243759955561553019/posts/Mn7DQSJuKc8>. >>>>>>>>> >>>>>>>>> Jean-Damien. >>>>>>>>> >>>>>>>>> Le vendredi 12 décembre 2014 14:10:07 UTC+1, Zeev Atlas a écrit : >>>>>>>>>> >>>>>>>>>> COuld you please migrate the POC as well >>>>>>>>>> ZA >>>>>>>>>> >>>>>>>>>> -- You received this message because you are subscribed to the Google Groups "marpa parser" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
