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											2018-01-21 10:33:32 -05:00
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							|  |  |  | <article> | 
					
						
							|  |  |  | <h2>XQuery mode</h2> | 
					
						
							|  |  |  |   | 
					
						
							|  |  |  |   | 
					
						
							|  |  |  | <div class="cm-s-default">  | 
					
						
							|  |  |  | 	<textarea id="code" name="code">  | 
					
						
							|  |  |  | xquery version "1.0-ml"; | 
					
						
							|  |  |  | (: this is | 
					
						
							|  |  |  |  : a  | 
					
						
							|  |  |  |    "comment" :) | 
					
						
							|  |  |  | let $let := <x attr="value">"test"<func>function() $var {function()} {$var}</func></x> | 
					
						
							|  |  |  | let $joe:=1 | 
					
						
							|  |  |  | return element element { | 
					
						
							|  |  |  | 	attribute attribute { 1 }, | 
					
						
							|  |  |  | 	element test { 'a' },  | 
					
						
							|  |  |  | 	attribute foo { "bar" }, | 
					
						
							|  |  |  | 	fn:doc()[ foo/@bar eq $let ], | 
					
						
							|  |  |  | 	//x }     | 
					
						
							|  |  |  |   | 
					
						
							|  |  |  | (: a more 'evil' test :) | 
					
						
							|  |  |  | (: Modified Blakeley example (: with nested comment :) ... :) | 
					
						
							|  |  |  | declare private function local:declare() {()}; | 
					
						
							|  |  |  | declare private function local:private() {()}; | 
					
						
							|  |  |  | declare private function local:function() {()}; | 
					
						
							|  |  |  | declare private function local:local() {()}; | 
					
						
							|  |  |  | let $let := <let>let $let := "let"</let> | 
					
						
							|  |  |  | return element element { | 
					
						
							|  |  |  | 	attribute attribute { try { xdmp:version() } catch($e) { xdmp:log($e) } }, | 
					
						
							|  |  |  | 	attribute fn:doc { "bar" castable as xs:string }, | 
					
						
							|  |  |  | 	element text { text { "text" } }, | 
					
						
							|  |  |  | 	fn:doc()[ child::eq/(@bar | attribute::attribute) eq $let ], | 
					
						
							|  |  |  | 	//fn:doc | 
					
						
							|  |  |  | } | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | xquery version "1.0-ml"; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | (: Copyright 2006-2010 Mark Logic Corporation. :) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | (: | 
					
						
							|  |  |  |  : Licensed under the Apache License, Version 2.0 (the "License"); | 
					
						
							|  |  |  |  : you may not use this file except in compliance with the License. | 
					
						
							|  |  |  |  : You may obtain a copy of the License at | 
					
						
							|  |  |  |  : | 
					
						
							|  |  |  |  :     http://www.apache.org/licenses/LICENSE-2.0 | 
					
						
							|  |  |  |  : | 
					
						
							|  |  |  |  : Unless required by applicable law or agreed to in writing, software | 
					
						
							|  |  |  |  : distributed under the License is distributed on an "AS IS" BASIS, | 
					
						
							|  |  |  |  : WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 
					
						
							|  |  |  |  : See the License for the specific language governing permissions and | 
					
						
							|  |  |  |  : limitations under the License. | 
					
						
							|  |  |  |  :) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | module namespace json = "http://marklogic.com/json"; | 
					
						
							|  |  |  | declare default function namespace "http://www.w3.org/2005/xpath-functions"; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | (: Need to backslash escape any double quotes, backslashes, and newlines :) | 
					
						
							|  |  |  | declare function json:escape($s as xs:string) as xs:string { | 
					
						
							|  |  |  |   let $s := replace($s, "\\", "\\\\") | 
					
						
							|  |  |  |   let $s := replace($s, """", "\\""") | 
					
						
							|  |  |  |   let $s := replace($s, codepoints-to-string((13, 10)), "\\n") | 
					
						
							|  |  |  |   let $s := replace($s, codepoints-to-string(13), "\\n") | 
					
						
							|  |  |  |   let $s := replace($s, codepoints-to-string(10), "\\n") | 
					
						
							|  |  |  |   return $s | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | declare function json:atomize($x as element()) as xs:string { | 
					
						
							|  |  |  |   if (count($x/node()) = 0) then 'null' | 
					
						
							|  |  |  |   else if ($x/@type = "number") then | 
					
						
							|  |  |  |     let $castable := $x castable as xs:float or | 
					
						
							|  |  |  |                      $x castable as xs:double or | 
					
						
							|  |  |  |                      $x castable as xs:decimal | 
					
						
							|  |  |  |     return | 
					
						
							|  |  |  |     if ($castable) then xs:string($x) | 
					
						
							|  |  |  |     else error(concat("Not a number: ", xdmp:describe($x))) | 
					
						
							|  |  |  |   else if ($x/@type = "boolean") then | 
					
						
							|  |  |  |     let $castable := $x castable as xs:boolean | 
					
						
							|  |  |  |     return | 
					
						
							|  |  |  |     if ($castable) then xs:string(xs:boolean($x)) | 
					
						
							|  |  |  |     else error(concat("Not a boolean: ", xdmp:describe($x))) | 
					
						
							|  |  |  |   else concat('"', json:escape($x), '"') | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | (: Print the thing that comes after the colon :) | 
					
						
							|  |  |  | declare function json:print-value($x as element()) as xs:string { | 
					
						
							|  |  |  |   if (count($x/*) = 0) then | 
					
						
							|  |  |  |     json:atomize($x) | 
					
						
							|  |  |  |   else if ($x/@quote = "true") then | 
					
						
							|  |  |  |     concat('"', json:escape(xdmp:quote($x/node())), '"') | 
					
						
							|  |  |  |   else | 
					
						
							|  |  |  |     string-join(('{', | 
					
						
							|  |  |  |       string-join(for $i in $x/* return json:print-name-value($i), ","), | 
					
						
							|  |  |  |     '}'), "") | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | (: Print the name and value both :) | 
					
						
							|  |  |  | declare function json:print-name-value($x as element()) as xs:string? { | 
					
						
							|  |  |  |   let $name := name($x) | 
					
						
							|  |  |  |   let $first-in-array := | 
					
						
							|  |  |  |     count($x/preceding-sibling::*[name(.) = $name]) = 0 and | 
					
						
							|  |  |  |     (count($x/following-sibling::*[name(.) = $name]) > 0 or $x/@array = "true") | 
					
						
							|  |  |  |   let $later-in-array := count($x/preceding-sibling::*[name(.) = $name]) > 0 | 
					
						
							|  |  |  |   return | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  |   if ($later-in-array) then | 
					
						
							|  |  |  |     ()  (: I was handled previously :) | 
					
						
							|  |  |  |   else if ($first-in-array) then | 
					
						
							|  |  |  |     string-join(('"', json:escape($name), '":[', | 
					
						
							|  |  |  |       string-join((for $i in ($x, $x/following-sibling::*[name(.) = $name]) return json:print-value($i)), ","), | 
					
						
							|  |  |  |     ']'), "") | 
					
						
							|  |  |  |    else | 
					
						
							|  |  |  |      string-join(('"', json:escape($name), '":', json:print-value($x)), "") | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | (:~ | 
					
						
							|  |  |  |   Transforms an XML element into a JSON string representation.  See http://json.org. | 
					
						
							|  |  |  |   <p/> | 
					
						
							|  |  |  |   Sample usage: | 
					
						
							|  |  |  |   <pre> | 
					
						
							|  |  |  |     xquery version "1.0-ml"; | 
					
						
							|  |  |  |     import module namespace json="http://marklogic.com/json" at "json.xqy"; | 
					
						
							|  |  |  |     json:serialize(&lt;foo&gt;&lt;bar&gt;kid&lt;/bar&gt;&lt;/foo&gt;) | 
					
						
							|  |  |  |   </pre> | 
					
						
							|  |  |  |   Sample transformations: | 
					
						
							|  |  |  |   <pre> | 
					
						
							|  |  |  |   &lt;e/&gt; becomes {"e":null} | 
					
						
							|  |  |  |   &lt;e&gt;text&lt;/e&gt; becomes {"e":"text"} | 
					
						
							|  |  |  |   &lt;e&gt;quote " escaping&lt;/e&gt; becomes {"e":"quote \" escaping"} | 
					
						
							|  |  |  |   &lt;e&gt;backslash \ escaping&lt;/e&gt; becomes {"e":"backslash \\ escaping"} | 
					
						
							|  |  |  |   &lt;e&gt;&lt;a&gt;text1&lt;/a&gt;&lt;b&gt;text2&lt;/b&gt;&lt;/e&gt; becomes {"e":{"a":"text1","b":"text2"}} | 
					
						
							|  |  |  |   &lt;e&gt;&lt;a&gt;text1&lt;/a&gt;&lt;a&gt;text2&lt;/a&gt;&lt;/e&gt; becomes {"e":{"a":["text1","text2"]}} | 
					
						
							|  |  |  |   &lt;e&gt;&lt;a array="true"&gt;text1&lt;/a&gt;&lt;/e&gt; becomes {"e":{"a":["text1"]}} | 
					
						
							|  |  |  |   &lt;e&gt;&lt;a type="boolean"&gt;false&lt;/a&gt;&lt;/e&gt; becomes {"e":{"a":false}} | 
					
						
							|  |  |  |   &lt;e&gt;&lt;a type="number"&gt;123.5&lt;/a&gt;&lt;/e&gt; becomes {"e":{"a":123.5}} | 
					
						
							|  |  |  |   &lt;e quote="true"&gt;&lt;div attrib="value"/&gt;&lt;/e&gt; becomes {"e":"&lt;div attrib=\"value\"/&gt;"} | 
					
						
							|  |  |  |   </pre> | 
					
						
							|  |  |  |   <p/> | 
					
						
							|  |  |  |   Namespace URIs are ignored.  Namespace prefixes are included in the JSON name. | 
					
						
							|  |  |  |   <p/> | 
					
						
							|  |  |  |   Attributes are ignored, except for the special attribute @array="true" that | 
					
						
							|  |  |  |   indicates the JSON serialization should write the node, even if single, as an | 
					
						
							|  |  |  |   array, and the attribute @type that can be set to "boolean" or "number" to | 
					
						
							|  |  |  |   dictate the value should be written as that type (unquoted).  There's also | 
					
						
							|  |  |  |   an @quote attribute that when set to true writes the inner content as text | 
					
						
							|  |  |  |   rather than as structured JSON, useful for sending some XHTML over the | 
					
						
							|  |  |  |   wire. | 
					
						
							|  |  |  |   <p/> | 
					
						
							|  |  |  |   Text nodes within mixed content are ignored. | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  |   @param $x Element node to convert | 
					
						
							|  |  |  |   @return String holding JSON serialized representation of $x | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  |   @author Jason Hunter | 
					
						
							|  |  |  |   @version 1.0.1 | 
					
						
							|  |  |  |    | 
					
						
							|  |  |  |   Ported to xquery 1.0-ml; double escaped backslashes in json:escape | 
					
						
							|  |  |  | :) | 
					
						
							|  |  |  | declare function json:serialize($x as element())  as xs:string { | 
					
						
							|  |  |  |   string-join(('{', json:print-name-value($x), '}'), "") | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  |   </textarea>  | 
					
						
							|  |  |  | </div>  | 
					
						
							|  |  |  |   | 
					
						
							|  |  |  |     <script>  | 
					
						
							|  |  |  |       var editor = CodeMirror.fromTextArea(document.getElementById("code"), { | 
					
						
							|  |  |  |         lineNumbers: true, | 
					
						
							|  |  |  |         matchBrackets: true, | 
					
						
							|  |  |  |         theme: "xq-dark" | 
					
						
							|  |  |  |       }); | 
					
						
							|  |  |  |     </script>  | 
					
						
							|  |  |  |   | 
					
						
							|  |  |  |     <p><strong>MIME types defined:</strong> <code>application/xquery</code>.</p>  | 
					
						
							|  |  |  |   | 
					
						
							|  |  |  |     <p>Development of the CodeMirror XQuery mode was sponsored by  | 
					
						
							|  |  |  |       <a href="http://marklogic.com">MarkLogic</a> and developed by  | 
					
						
							|  |  |  |       <a href="https://twitter.com/mbrevoort">Mike Brevoort</a>. | 
					
						
							|  |  |  |     </p> | 
					
						
							|  |  |  |   | 
					
						
							|  |  |  |   </article> |