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linguist/samples/XQuery/xproc.xqm
2012-07-23 15:52:49 -05:00

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(: -------------------------------------------------------------------------------------
xproc.xqm - core xqm contains entry points, primary eval-step function and
control functions.
---------------------------------------------------------------------------------------- :)
xquery version "3.0" encoding "UTF-8";
module namespace xproc = "http://xproc.net/xproc";
(: declare namespaces :)
declare namespace p="http://www.w3.org/ns/xproc";
declare namespace c="http://www.w3.org/ns/xproc-step";
declare namespace err="http://www.w3.org/ns/xproc-error";
(: module imports :)
(: import module namespace util = "http://xproc.net/xproc/util" at "util1.xqm"; :)
import module namespace const = "http://xproc.net/xproc/const" at "const.xqm";
import module namespace parse = "http://xproc.net/xproc/parse" at "parse.xqm";
import module namespace u = "http://xproc.net/xproc/util" at "util.xqm";
(: declare options :)
declare boundary-space preserve;
declare option saxon:output "indent=yes";
(: declare functions :)
declare variable $xproc:run-step := xproc:run#6;
declare variable $xproc:parse-and-eval := ();
declare variable $xproc:declare-step := ();
declare variable $xproc:choose := ();
declare variable $xproc:try := ();
declare variable $xproc:catch := ();
declare variable $xproc:group := ();
declare variable $xproc:for-each := ();
declare variable $xproc:viewport := ();
declare variable $xproc:library := ();
declare variable $xproc:pipeline := ();
declare variable $xproc:variable := ();
(: list all declared namespaces :)
(: -------------------------------------------------------------------------- :)
declare function xproc:enum-namespaces($pipeline){
(: -------------------------------------------------------------------------- :)
<namespace name="{$pipeline/@name}">{u:enum-ns(<dummy>{$pipeline}</dummy>)}</namespace>
};
(: entry point :)
(: -------------------------------------------------------------------------- :)
declare function xproc:run($pipeline,$stdin,$dflag,$tflag,$bindings,$options){
(: -------------------------------------------------------------------------- :)
(: STEP I: preprocess :)
let $validate := ()
let $namespaces := xproc:enum-namespaces($pipeline)
let $parse := parse:explicit-bindings( parse:AST(parse:explicit-name(parse:explicit-type($pipeline))))
let $ast := element p:declare-step {$parse/@*,
parse:pipeline-step-sort( $parse/*, () )
}
(: STEP II: eval AST :)
let $eval_result := ()
(: STEP III: serialize and return results :)
let $serialized_result := $pipeline
return
$serialized_result
};