sedna - Odd behavior in XQuery comments -

i have set of xquery transformations running on files stored in sedna database. have following format:

declare namespace ns0 = "http://www.someuri.com/foo.xsd"; declare namespace ns1 = "http://www.someuri.com/bar.xsd";  (:declare few functions following:) declare function local:to-xs-boolean(     $string xs:string? ) xs:boolean? {     if (fn:upper-case($string) = 'y')         xs:boolean('true')     else         if (fn:upper-case($string) = 'n')             xs:boolean('false')         (:if isn't y or n attempt normal cast - fail if         isn't of 'true', 'false', 1, or 0 :)         else             if ($string != '')                 xs:boolean($string)             else                 ()         (:endif:)     (:endif:) };  (:omitted several other functions:)  (:start main program:)  (: { :) $formname in /ns0:formname return         <ns1:newformname>             {                 let $address := $formname/ns0:address                 return                     <newaddress>{                         (:omitted code , elements unrelated question:)                     }</newaddress>             }             (:omitted code , elements unrelated question:)         </ns1:newformname> 

now here question. see line right above 'for' reads '(: { :)'? should comment, reason crucial proper function of query. if delete (or remove '{' inside comment)

sedna message: error xpdy0002 dynamic error if evaluation of expression relies on part of dynamic context has not been assigned value. 

if uncomment (so line reads '{') get

sedna message: error xpst0003 static error if expression not valid instance of grammar defined in a.1 ebnf. details: @ (393:1), syntax error, unexpected {          @ (798:33), syntax error, unexpected end of file, expecting "," or } 

if have both uncommented , add matching '}' end of file get

sedna message: error xpst0003 static error if expression not valid instance of grammar defined in a.1 ebnf. details: @ (393:1), syntax error, unexpected { 

if add other text comment (like '(:text foo bar baz() blah {:)') continue work long leave '{' in there.

has ever seen before or have idea might causing it? isn't crucial issue (i can make sure have '(:{:)' in of transformations), making me curious. help, or joining me in puzzlement.

oh 1 other quick note - don't know if makes difference, running query out of java using charles foster's sedna api (http://www.cfoster.net/sedna/)

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edit: here different query wrote shows same issue. seems reproducable me, if syntax error related me reproducing syntax error. leave old 1 future viewers of question aren't confused.

declare namespace ns0 = "http://www.someuri.com/initialschema.xsd"; declare namespace ns1 = "http://www.someuri.com/finalschema.xsd";  declare function local:to-address(     $recipient xs:string?,     $line1 xs:string?,     $line2 xs:string?,     $line3 xs:string?,     $city xs:string?,     $provinceorstate xs:string?,     $country xs:string?,     $postalorzip xs:string? ) element() {     if (fn:upper-case($country) = 'ca' or fn:upper-case($country) = 'us')         if (fn:upper-case($country) = 'ca')             <canadianaddress>                 <city>{ $city }</city>                 <country>{ $country }</country>                 <postalcode>{ $postalorzip }</postalcode>                 <province>{ $provinceorstate }</province>                 <recipient>{ fn:normalize-space($recipient) }</recipient>                 <streetaddress>{ $line1 }</streetaddress>                 <streetaddress>{ $line2 }</streetaddress>                 <streetaddress>{ $line3 }</streetaddress>                 <streetaddress/>             </canadianaddress>         else             <usaddress>                 <city>{ $city }</city>                 <country>{ $country }</country>                 <zipcode>{ $postalorzip }</zipcode>                 <state>{ $provinceorstate }</state>                 <recipient>{ fn:normalize-space($recipient) }</recipient>                 <streetaddress>{ $line1 }</streetaddress>                 <streetaddress>{ $line2 }</streetaddress>                 <streetaddress>{ $line3 }</streetaddress>             </usaddress>                 (:endif:)     else         if ($country != '')                     <internationaladdress>                 <city>{ $city }</city>                 <country>{ $country }</country>                 <postalcode>{ $postalorzip }</postalcode>                 <recipient>{ fn:normalize-space($recipient) }</recipient>                 <streetaddress>{ $line1 }</streetaddress>                 <streetaddress>{ $line2 }</streetaddress>                 <streetaddress>{ $line3 }</streetaddress>             </internationaladdress>         else             <canadianaddress>                 <city>{ $city }</city>                 <country>{ $country }</country>                 <postalcode>{ $postalorzip }</postalcode>                 <province>{ $provinceorstate }</province>                 <recipient>{ fn:normalize-space($recipient) }</recipient>                 <streetaddress>{ $line1 }</streetaddress>                 <streetaddress>{ $line2 }</streetaddress>                 <streetaddress>{ $line3 }</streetaddress>                 <streetaddress/>             </canadianaddress>         (:endif:)     (:endif:) };   (:{:) $addressform1 in /ns0:addressform let $token := xs:integer(data($addressform1/ns0:submissionid)) return         <ns1:newaddressform>             <submissionid>{ data($addressform1/ns0:submissionid) }</submissionid>             {                 let $currentaddress := $addressform1/ns0:currentaddress                 return                     <newaddress>{                         local:to-address(                             concat(                                 $addressform1/ns0:fullname/ns0:firstname,                                 ' ',                                 substring(data($addressform1/ns0:fullname/ns0:middlename), 1, 1),                                 ' ',                                 $addressform1/ns0:fullname/ns0:lastname                             ),                             data($currentaddress/ns0:line1),                             data($currentaddress/ns0:line2),                             data($currentaddress/ns0:line3),                             data($currentaddress/ns0:city),                             data($currentaddress/ns0:provinceorstate),                             data($currentaddress/ns0:country),                             data($currentaddress/ns0:postalorzipcode)                         )                     }</newaddress>             }         </ns1:newaddressform> 

and here sample data new query

<?xml version="1.0"?> <ns0:addressform xmlns:ns0="http://www.someuri.com/initialschema.xsd">     <ns0:submissionid>23774</ns0:submissionid>     <ns0:fullname>         <ns0:firstname>first</ns0:firstname>         <ns0:middlename>middle</ns0:middlename>         <ns0:lastname>last</ns0:lastname>     </ns0:fullname>     <ns0:currentaddress>         <ns0:line1>line 1</ns0:line1>         <ns0:line2>line 2</ns0:line2>         <ns0:line3>line 3</ns0:line3>         <ns0:city>city</ns0:city>         <ns0:provinceorstate>province</ns0:provinceorstate>         <ns0:postalorzipcode>h0h 0h0</ns0:postalorzipcode>         <ns0:country>ca</ns0:country>     </ns0:currentaddress> </ns0:addressform> 

if syntax error behind kind point out me line on?

the problem following line:

for $formname in /ns0:formname 

in sedna (remember sedna database, not xquery processor) there no way define default context item (see xquery 1.0, 2.1.2 dynamic context) prior query execution. doesn't know how evaluate ./ns0:formname (which equivalent of simple /ns0:formname) - doesn't know . means in case.

you should load document want process database , access doc() function:

for $formname in doc('forms')/ns0:formname 

as far know, may try charles fosters's xqj api sedna (which should anyway better xml:db api) has support defining context item.

btw, if have questions concerning sedna's xml:db or xqj it's better ask them directly in sedna-discussion list. there chances charles answer you.