You are right Mike! It looks like my understanding was wrong. XQYSP supports parenthesis precedence but it ignores query strength like. AND has higher strength over OR then XQYSP will ignore the strength and provide parse using left precedence - Any suggestion
Thanks Abhishek Srivastav Tata Consultancy Services Cell:- +91-9883389968 Mailto: [email protected] Website: http://www.tcs.com ____________________________________________ Experience certainty. IT Services Business Solutions Outsourcing ____________________________________________ From: Michael Blakeley <[email protected]> To: MarkLogic Developer Discussion <[email protected]> Date: 12/10/2012 06:27 AM Subject: Re: [MarkLogic Dev General] XQYSP and parenthesis precedence Sent by: [email protected] Where did you get that understanding? https://github.com/mblakele/xqysp mentions groups and shows parens as part of the grammar. > Recently I needed to parse a fairly sophisticated search syntax for a project. I needed a pure XQuery solution, and MarkLogic's built-in search API wouldn't handle some of the syntax: nested groups, for example. So I wrote another one. ... > L ::= expr* > expr ::= group | infixExpr | term > group ::= prefixOp? '(' expr* ')' > ... Still in doubt? Construct a test. Here's one. import module namespace p="com.blakeley.xqysp" at "xqysp.xqy"; p:parse( '(alpha OR (beta AND X=(gamma)) OR (delta)) AND fubar') => <root xmlns="com.blakeley.xqysp"> <expression op="AND" type="infix"> <expression op="OR" type="infix"> <literal>alpha</literal> <expression op="AND" type="infix"> <literal>beta</literal> <field name="X" op="="> <literal>gamma</literal> </field> </expression> <literal>delta</literal> </expression> <literal>fubar</literal> </expression> </root> -- Mike On 9 Dec 2012, at 09:41 , Abhishek53 S <[email protected]> wrote: > Hi All, > > As per my understanding XQYSP completely ignores parenthesis [Applying precedence to query] so all the query will be parsed from left to right precedence. > > Do we have any suggestion on how/where to change query to consider parenthesis as precedence. > Thanks in advance!!! > > Abhishek Srivastav > Tata Consultancy Services > Cell:- +91-9883389968 > Mailto: [email protected] > Website: http://www.tcs.com > ____________________________________________ > Experience certainty. IT Services > Business Solutions > Outsourcing > =====-----=====-----===== > Notice: The information contained in this e-mail > message and/or attachments to it may contain > confidential or privileged information. If you are > not the intended recipient, any dissemination, use, > review, distribution, printing or copying of the > information contained in this e-mail message > and/or attachments to it are strictly prohibited. If > you have received this communication in error, > please notify us by reply e-mail or telephone and > immediately and permanently delete the message > and any attachments. Thank you > > > _______________________________________________ > General mailing list > [email protected] > http://developer.marklogic.com/mailman/listinfo/general _______________________________________________ General mailing list [email protected] http://developer.marklogic.com/mailman/listinfo/general
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