mirror of
https://github.com/renbaoshuo/S2OJ.git
synced 2024-11-23 14:18:42 +00:00
211 lines
8.4 KiB
HTML
211 lines
8.4 KiB
HTML
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<!doctype html>
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<title>CodeMirror: XQuery mode</title>
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<meta charset="utf-8"/>
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<link rel=stylesheet href="../../doc/docs.css">
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<link rel="stylesheet" href="../../lib/codemirror.css">
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<link rel="stylesheet" href="../../theme/xq-dark.css">
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<script src="../../lib/codemirror.js"></script>
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<script src="xquery.js"></script>
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<style type="text/css">
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.CodeMirror {
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border-top: 1px solid black; border-bottom: 1px solid black;
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height:400px;
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}
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</style>
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<div id=nav>
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<a href="http://codemirror.net"><img id=logo src="../../doc/logo.png"></a>
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<ul>
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<li><a href="../../index.html">Home</a>
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<li><a href="../../doc/manual.html">Manual</a>
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<li><a href="https://github.com/marijnh/codemirror">Code</a>
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</ul>
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<ul>
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<li><a href="../index.html">Language modes</a>
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<li><a class=active href="#">XQuery</a>
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</ul>
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</div>
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<article>
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<h2>XQuery mode</h2>
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<div class="cm-s-default">
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<textarea id="code" name="code">
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xquery version "1.0-ml";
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(: this is
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: a
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"comment" :)
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let $let := <x attr="value">"test"<func>function() $var {function()} {$var}</func></x>
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let $joe:=1
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return element element {
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attribute attribute { 1 },
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element test { 'a' },
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attribute foo { "bar" },
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fn:doc()[ foo/@bar eq $let ],
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//x }
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(: a more 'evil' test :)
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(: Modified Blakeley example (: with nested comment :) ... :)
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declare private function local:declare() {()};
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declare private function local:private() {()};
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declare private function local:function() {()};
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declare private function local:local() {()};
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let $let := <let>let $let := "let"</let>
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return element element {
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attribute attribute { try { xdmp:version() } catch($e) { xdmp:log($e) } },
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attribute fn:doc { "bar" castable as xs:string },
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element text { text { "text" } },
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fn:doc()[ child::eq/(@bar | attribute::attribute) eq $let ],
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//fn:doc
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}
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xquery version "1.0-ml";
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(: Copyright 2006-2010 Mark Logic Corporation. :)
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(:
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: Licensed under the Apache License, Version 2.0 (the "License");
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: you may not use this file except in compliance with the License.
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: You may obtain a copy of the License at
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:
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: http://www.apache.org/licenses/LICENSE-2.0
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:
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: Unless required by applicable law or agreed to in writing, software
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: distributed under the License is distributed on an "AS IS" BASIS,
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: WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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: See the License for the specific language governing permissions and
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: limitations under the License.
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:)
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module namespace json = "http://marklogic.com/json";
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declare default function namespace "http://www.w3.org/2005/xpath-functions";
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(: Need to backslash escape any double quotes, backslashes, and newlines :)
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declare function json:escape($s as xs:string) as xs:string {
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let $s := replace($s, "\\", "\\\\")
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let $s := replace($s, """", "\\""")
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let $s := replace($s, codepoints-to-string((13, 10)), "\\n")
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let $s := replace($s, codepoints-to-string(13), "\\n")
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let $s := replace($s, codepoints-to-string(10), "\\n")
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return $s
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};
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declare function json:atomize($x as element()) as xs:string {
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if (count($x/node()) = 0) then 'null'
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else if ($x/@type = "number") then
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let $castable := $x castable as xs:float or
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$x castable as xs:double or
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$x castable as xs:decimal
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return
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if ($castable) then xs:string($x)
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else error(concat("Not a number: ", xdmp:describe($x)))
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else if ($x/@type = "boolean") then
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let $castable := $x castable as xs:boolean
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return
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if ($castable) then xs:string(xs:boolean($x))
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else error(concat("Not a boolean: ", xdmp:describe($x)))
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else concat('"', json:escape($x), '"')
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};
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(: Print the thing that comes after the colon :)
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declare function json:print-value($x as element()) as xs:string {
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if (count($x/*) = 0) then
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json:atomize($x)
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else if ($x/@quote = "true") then
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concat('"', json:escape(xdmp:quote($x/node())), '"')
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else
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string-join(('{',
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string-join(for $i in $x/* return json:print-name-value($i), ","),
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'}'), "")
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};
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(: Print the name and value both :)
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declare function json:print-name-value($x as element()) as xs:string? {
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let $name := name($x)
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let $first-in-array :=
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count($x/preceding-sibling::*[name(.) = $name]) = 0 and
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(count($x/following-sibling::*[name(.) = $name]) > 0 or $x/@array = "true")
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let $later-in-array := count($x/preceding-sibling::*[name(.) = $name]) > 0
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return
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if ($later-in-array) then
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() (: I was handled previously :)
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else if ($first-in-array) then
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string-join(('"', json:escape($name), '":[',
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string-join((for $i in ($x, $x/following-sibling::*[name(.) = $name]) return json:print-value($i)), ","),
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']'), "")
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else
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string-join(('"', json:escape($name), '":', json:print-value($x)), "")
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};
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(:~
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Transforms an XML element into a JSON string representation. See http://json.org.
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<p/>
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Sample usage:
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<pre>
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xquery version "1.0-ml";
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import module namespace json="http://marklogic.com/json" at "json.xqy";
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json:serialize(&lt;foo&gt;&lt;bar&gt;kid&lt;/bar&gt;&lt;/foo&gt;)
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</pre>
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Sample transformations:
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<pre>
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&lt;e/&gt; becomes {"e":null}
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&lt;e&gt;text&lt;/e&gt; becomes {"e":"text"}
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&lt;e&gt;quote " escaping&lt;/e&gt; becomes {"e":"quote \" escaping"}
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&lt;e&gt;backslash \ escaping&lt;/e&gt; becomes {"e":"backslash \\ escaping"}
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&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"}}
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&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"]}}
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&lt;e&gt;&lt;a array="true"&gt;text1&lt;/a&gt;&lt;/e&gt; becomes {"e":{"a":["text1"]}}
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&lt;e&gt;&lt;a type="boolean"&gt;false&lt;/a&gt;&lt;/e&gt; becomes {"e":{"a":false}}
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&lt;e&gt;&lt;a type="number"&gt;123.5&lt;/a&gt;&lt;/e&gt; becomes {"e":{"a":123.5}}
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&lt;e quote="true"&gt;&lt;div attrib="value"/&gt;&lt;/e&gt; becomes {"e":"&lt;div attrib=\"value\"/&gt;"}
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</pre>
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<p/>
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Namespace URIs are ignored. Namespace prefixes are included in the JSON name.
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<p/>
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Attributes are ignored, except for the special attribute @array="true" that
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indicates the JSON serialization should write the node, even if single, as an
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array, and the attribute @type that can be set to "boolean" or "number" to
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dictate the value should be written as that type (unquoted). There's also
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an @quote attribute that when set to true writes the inner content as text
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rather than as structured JSON, useful for sending some XHTML over the
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wire.
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<p/>
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Text nodes within mixed content are ignored.
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@param $x Element node to convert
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@return String holding JSON serialized representation of $x
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@author Jason Hunter
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@version 1.0.1
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Ported to xquery 1.0-ml; double escaped backslashes in json:escape
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:)
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declare function json:serialize($x as element()) as xs:string {
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string-join(('{', json:print-name-value($x), '}'), "")
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};
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</textarea>
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</div>
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<script>
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var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
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lineNumbers: true,
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matchBrackets: true,
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theme: "xq-dark"
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});
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</script>
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<p><strong>MIME types defined:</strong> <code>application/xquery</code>.</p>
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<p>Development of the CodeMirror XQuery mode was sponsored by
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<a href="http://marklogic.com">MarkLogic</a> and developed by
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<a href="https://twitter.com/mbrevoort">Mike Brevoort</a>.
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</p>
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</article>
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