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1<?xml version="1.0" encoding="utf-8"?>
2<html xmlns="http://www.w3.org/1999/xhtml">
3  <head>
4    <title>χίμαιραλ (chimeral) - the Chimera Language</title>
5    <link href="xrd.css" type="text/css" rel="stylesheet"/>
6  </head>
7  <body>
8    <h1>χίμαιραλ (chimeral) - the Chimera Language</h1>
9    <div>
10      <p>This Version: <a href="http://χίμαιραλ.com/0/3">V 0.3 (29th February 2012)</a></p>
11      <p>Previous Version: <a href="http://χίμαιραλ.com/0/2/">http://χίμαιραλ.com/0/2/</a></p>
12      <p>Latest Version: <a href="http://χίμαιραλ.com">http://χίμαιραλ.com</a></p>
13      <p>This namespace: <a href="http://χίμαιραλ.com#">http://χίμαιραλ.com#</a></p>
14      <p>Editor:</p>
15      <ul>
16        <li><a href="mailto:vdv@dyomedea.com">Eric van der Vlist</a>, <a href="http://dyomedea.com">Dyomedea</a></li>
17      </ul>
18    </div>
19    <div>
20      <h2>About this page</h2>
21      <p>This page is the home page of the χίμαιραλ (chimeral) project and the documentation of the <a href="http://χίμαιραλ.com#">http://χίμαιραλ.com#</a> XML namespace.</p>
22      <p>The goal of χίμαιραλ (chimeral) is to facilitate the use of the XPath/XQuery/XSLT 3.0 data model aka <a href="http://www.w3.org/TR/xpath-datamodel-30/">XDM 3.0</a>.</p>
23      <p>The <a href="http://χίμαιραλ.com#">http://χίμαιραλ.com#</a> XML namespace defines a XML serialization format for XDM 3.0.</p>
24      <p>The name and the idea of this project comes from the <a href="http://www.xmlprague.cz/2012/sessions.html#Opening-Keynote-%E2%80%93-Collisions-Chimera-and-Consonance-in-Web-Content">presentation</a> given by Jeni Tennison at XML Prague 2012: I was going to show that XDM is a foundation on which the whole XML ecosystem is built and Jeni, giving her opening keynote just
25        before my presentation explained why we should take care of chimeras, “ugly, foolish or impossible fantasies”. This made me realize that XDM, a data model that aggregates the XML infoset and
26        informations items borrowed to XML Schema and now JSON is a chimera and that some efforts are needed to make it viable!</p>
27      <p>The <a href="http://χίμαιραλ.com#">http://χίμαιραλ.com#</a> XML namespace is a first step in that direction. By providing a serialization format it gives some reality to the XDM that has been
28        a perfectly abstract concept so far. This serialization format is also useful to manipulate the XDM: the items recently imported into the model such as maps are not always considered as first
29        class citizens by XPath/XQuery/XSLT (you can't apply templates on map items for instance) and this serialization can help do that.</p>
30      <p>The namespace URI itself (<a href="http://χίμαιραλ.com#">http://χίμαιραλ.com#</a>) is a chimera, composed of letters from two different alphabets and merging concepts from two different
31        civilizations.</p>
32    </div>
33    <div>
34      <h2>Basic Principles</h2>
35      <p>The design goals of this vocabulary are:</p>
36      <ul>
37        <li>Be as close as possible to the XDM and its terminology</li>
38        <li>Allow round-trips (an XDM model serialized as χίμαιραλ should give a XDML model identical to the original one when de-serialized)</li>
39        <li>Represent XML nodes as... XML nodes.</li>
40        <li>Be easy to process using XPath/XQuery/XSLT.</li>
41      </ul>
42      <p>The XDM makes a clear distinction between nodes and other item types (atomic values, functions and maps).</p>
43      <p>Fidelity to the XDM commands that χίμαιραλ keeps this distinction. </p>
44      <p>When a map entry has a node value, this value is a reference to the node in its full context and the complete document to which the node belongs can be accessed through this node.</p>
45      <p>To keep this behavior, χίμαιραλ copies the documents that are referenced by nodes in <code>χ:instance</code> elements. Like for XDM, map entries node values are references to the nodes in
46        these instances and to be non intrusive, these references are made using XPath expressions.</p>
47      <p>Another important property of XDM is the lightweight character of sequences: sequences are not considered as an item type they are just repetitions of items. Similarly, χίμαιραλ has no
48        sequence elements and sequences are just repetitions of items.</p>
49      <p>χίμαιραλ does not support functions (yet?) and is thus left with three types of items:</p>
50      <ul>
51        <li><code>χ:node</code> for XML nodes</li>
52        <li><code>χ:atomic-value</code> for... atomic values</li>
53        <li><code>χ:map</code> for (you'll have guessed) maps.</li>
54      </ul>
55      <p>One of the major differences between XDM and χίμαιραλ is a fourth object<code> χ:entry</code> used to contain map entries which have no incarnation in XDM.</p>
56    </div>
57    <div>
58      <h2>Examples</h2>
59      <div><h3>JSON objects</h3><p>The following JSON
60          object:</p><pre>{
61     "firstName": "John",
62     "lastName" : "Smith",
63     "age"      : 25,
64     "address"  :
65     {
66         "streetAddress": "21 2nd Street",
67         "city"         : "New York",
68         "state"        : "NY",
69         "postalCode"   : "10021"
70     },
71     "phoneNumber":
72     [
73         {
74           "type"  : "home",
75           "number": "212 555-1234"
76         },
77         {
78           "type"  : "fax",
79           "number": "646 555-4567"
80         }
81     ]
82 }</pre><p>imported
83          into XDM with the parse-json() function gives the following χίμαιραλ
84        serialization:</p><pre>&lt;?xml version="1.0" encoding="UTF-8"?>
85&lt;χ:data-model xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:χ="http://χίμαιραλ.com#">
86   &lt;χ:map>
87      &lt;χ:entry key="lastName" keyType="string">
88         &lt;χ:atomic-value type="string">Smith&lt;/χ:atomic-value>
89      &lt;/χ:entry>
90      &lt;χ:entry key="phoneNumber" keyType="string">
91         &lt;χ:map>
92            &lt;χ:entry key="1" keyType="number">
93               &lt;χ:map>
94                  &lt;χ:entry key="number" keyType="string">
95                     &lt;χ:atomic-value type="string">212 555-1234&lt;/χ:atomic-value>
96                  &lt;/χ:entry>
97                  &lt;χ:entry key="type" keyType="string">
98                     &lt;χ:atomic-value type="string">home&lt;/χ:atomic-value>
99                  &lt;/χ:entry>
100               &lt;/χ:map>
101            &lt;/χ:entry>
102            &lt;χ:entry key="2" keyType="number">
103               &lt;χ:map>
104                  &lt;χ:entry key="number" keyType="string">
105                     &lt;χ:atomic-value type="string">646 555-4567&lt;/χ:atomic-value>
106                  &lt;/χ:entry>
107                  &lt;χ:entry key="type" keyType="string">
108                     &lt;χ:atomic-value type="string">fax&lt;/χ:atomic-value>
109                  &lt;/χ:entry>
110               &lt;/χ:map>
111            &lt;/χ:entry>
112         &lt;/χ:map>
113      &lt;/χ:entry>
114      &lt;χ:entry key="address" keyType="string">
115         &lt;χ:map>
116            &lt;χ:entry key="streetAddress" keyType="string">
117               &lt;χ:atomic-value type="string">21 2nd Street&lt;/χ:atomic-value>
118            &lt;/χ:entry>
119            &lt;χ:entry key="postalCode" keyType="string">
120               &lt;χ:atomic-value type="string">10021&lt;/χ:atomic-value>
121            &lt;/χ:entry>
122            &lt;χ:entry key="state" keyType="string">
123               &lt;χ:atomic-value type="string">NY&lt;/χ:atomic-value>
124            &lt;/χ:entry>
125            &lt;χ:entry key="city" keyType="string">
126               &lt;χ:atomic-value type="string">New York&lt;/χ:atomic-value>
127            &lt;/χ:entry>
128         &lt;/χ:map>
129      &lt;/χ:entry>
130      &lt;χ:entry key="age" keyType="string">
131         &lt;χ:atomic-value type="number">25&lt;/χ:atomic-value>
132      &lt;/χ:entry>
133      &lt;χ:entry key="firstName" keyType="string">
134         &lt;χ:atomic-value type="string">John&lt;/χ:atomic-value>
135      &lt;/χ:entry>
136   &lt;/χ:map>
137&lt;/χ:data-model>
138</pre>
139      </div>
140      <div><h3>Map representing a RDF triple</h3><p>The map defined in XSLT
141          as:</p><pre>        &lt;xsl:variable name="json" select="
142            map {
143                xs:QName('rdf:subject')   := xs:anyURI('http://www.example.org/index.html'),
144                xs:QName('rdf:predicate') := xs:anyURI('http://purl.org/dc/elements/1.1/creator'),
145                xs:QName('rdf:object')    := xs:anyURI('http://www.example.org/staffid/85740')
146            }
147           
148            "
149            xmlns:rdf="http://example.com/rdf/"/>
150</pre><p>gives
151          the following χίμαιραλ
152        serialization:</p><pre>&lt;?xml version="1.0" encoding="UTF-8"?>
153&lt;χ:data-model xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:χ="http://χίμαιραλ.com#">
154   &lt;χ:map>
155      &lt;χ:entry xmlns:rdf="http://example.com/rdf/"
156               key="rdf:subject"
157               keyType="xs:QName">
158         &lt;χ:atomic-value type="xs:anyURI">http://www.example.org/index.html&lt;/χ:atomic-value>
159      &lt;/χ:entry>
160      &lt;χ:entry xmlns:rdf="http://example.com/rdf/"
161               key="rdf:predicate"
162               keyType="xs:QName">
163         &lt;χ:atomic-value type="xs:anyURI">http://purl.org/dc/elements/1.1/creator&lt;/χ:atomic-value>
164      &lt;/χ:entry>
165      &lt;χ:entry xmlns:rdf="http://example.com/rdf/" key="rdf:object" keyType="xs:QName">
166         &lt;χ:atomic-value type="xs:anyURI">http://www.example.org/staffid/85740&lt;/χ:atomic-value>
167      &lt;/χ:entry>
168   &lt;/χ:map>
169&lt;/χ:data-model>
170</pre></div>
171      <div><h3>Map with two references to the same document node</h3><p>The map defined in XSLT as:</p>
172        <pre>        &lt;xsl:variable name="node">
173            &lt;node>
174                &lt;foo/>
175                &lt;bar/>
176            &lt;/node>
177        &lt;/xsl:variable>
178        &lt;xsl:variable name="json" select="
179             map{
180                5     := 'foo',
181                'bar' := $node,
182                'bat' := $node
183               }"/>
184
185</pre>
186        <p>gives the following χίμαιραλ
187        serialization:</p><pre>&lt;?xml version="1.0" encoding="UTF-8"?>
188&lt;χ:data-model xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:χ="http://χίμαιραλ.com#">
189   &lt;χ:instance id="d3">
190      &lt;node1>
191         &lt;foo/>
192         &lt;bar/>
193      &lt;/node1>
194      &lt;node2/>
195   &lt;/χ:instance>
196   &lt;χ:map>
197      &lt;χ:entry key="5" keyType="number">
198         &lt;χ:atomic-value type="string">foo&lt;/χ:atomic-value>
199      &lt;/χ:entry>
200      &lt;χ:entry key="bat" keyType="string">
201         &lt;χ:node type="document" instance="d3" ref="/"/>
202      &lt;/χ:entry>
203      &lt;χ:entry key="bar" keyType="string">
204         &lt;χ:node type="document" instance="d3" ref="/"/>
205      &lt;/χ:entry>
206   &lt;/χ:map>
207&lt;/χ:data-model>
208</pre></div>
209      <div><h3>Map with two instances of the same node, atomic values and sequences</h3><p>The map defined in XSLT
210          as:</p><pre>       &lt;xsl:variable name="node">
211            &lt;node1>
212                &lt;foo/>
213                &lt;bar/>
214            &lt;/node1>
215            &lt;node2/>
216        &lt;/xsl:variable>
217        &lt;xsl:variable name="json"
218            select="
219                map{
220                    5 := ('foo', 'bar'),
221                    true() :=  false(),
222                    'sequence' := ($node, $node/*, 2)
223                 }"/>
224</pre><p>gives
225          the following χίμαιραλ
226        serialization:</p><pre>&lt;?xml version="1.0" encoding="UTF-8"?>
227&lt;χ:data-model xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:χ="http://χίμαιραλ.com#">
228   &lt;χ:instance id="d3">
229      &lt;node1>
230         &lt;foo/>
231         &lt;bar/>
232      &lt;/node1>
233      &lt;node2/>
234   &lt;/χ:instance>
235   &lt;χ:map>
236      &lt;χ:entry key="true" keyType="boolean">
237         &lt;χ:atomic-value type="boolean">false&lt;/χ:atomic-value>
238      &lt;/χ:entry>
239      &lt;χ:entry key="sequence" keyType="string">
240         &lt;χ:node type="document" instance="d3" ref="/"/>
241         &lt;χ:node type="element" instance="d3" path="/&amp;#34;&amp;#34;:node1[1]" name="node1"/>
242         &lt;χ:node type="element" instance="d3" path="/&amp;#34;&amp;#34;:node2[1]" name="node2"/>
243         &lt;χ:atomic-value type="number">2&lt;/χ:atomic-value>
244      &lt;/χ:entry>
245      &lt;χ:entry key="5" keyType="number">
246         &lt;χ:atomic-value type="string">foo&lt;/χ:atomic-value>
247         &lt;χ:atomic-value type="string">bar&lt;/χ:atomic-value>
248      &lt;/χ:entry>
249   &lt;/χ:map>
250&lt;/χ:data-model>
251</pre></div>
252      <div><h3>Map with all the different types of nodes</h3><p>The map defined in XSLT
253          as:</p><pre>        &lt;xsl:variable name="nodes">
254            &lt;my-element xmlns:ns="http:example.com" ns:my-attribute="foo">
255                &lt;xsl:comment>A comment&lt;/xsl:comment>
256                &lt;xsl:processing-instruction name="A">processing instruction&lt;/xsl:processing-instruction>
257                &lt;ns:a-sub-element>bar&lt;/ns:a-sub-element>
258                &lt;![CDATA[Some text]]&gt;
259            &lt;/my-element>
260        &lt;/xsl:variable>
261        &lt;xsl:variable name="json"
262            select="
263            map {
264                'doc':=  $nodes,
265                'elt':=  $nodes/my-element,
266                'att':=  $nodes/my-element/@* ,
267                'text':= $nodes/my-element/text() ,
268                'pi':=   $nodes/my-element/processing-instruction(),
269                'comment':= $nodes/my-element/comment(),
270                'ns':= $nodes/my-element/namespace::*
271            }"/>
272</pre><p>gives
273          the following χίμαιραλ
274          serialization:</p><pre>&lt;?xml version="1.0" encoding="UTF-8"?>
275&lt;χ:data-model xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:χ="http://χίμαιραλ.com#">
276   &lt;χ:instance id="d3">
277      &lt;my-element xmlns:ns="http:example.com" ns:my-attribute="foo">&lt;!--A comment-->&lt;?A processing instruction?>&lt;ns:a-sub-element>bar&lt;/ns:a-sub-element>
278                Some text
279            &lt;/my-element>
280   &lt;/χ:instance>
281   &lt;χ:map>
282      &lt;χ:entry key="ns" keyType="string">
283         &lt;χ:node type="namespace"
284                 instance="d3"
285                 path="/&amp;#34;&amp;#34;:my-element[1]/namespace::ns"
286                 name="ns">http:example.com&lt;/χ:node>
287         &lt;χ:node type="namespace"
288                 instance="d3"
289                 path="/&amp;#34;&amp;#34;:my-element[1]/namespace::xs"
290                 name="xs">http://www.w3.org/2001/XMLSchema&lt;/χ:node>
291         &lt;χ:node type="namespace"
292                 instance="d3"
293                 path="/&amp;#34;&amp;#34;:my-element[1]/namespace::χ"
294                 name="χ">http://χίμαιραλ.com#&lt;/χ:node>
295         &lt;χ:node type="namespace"
296                 instance="d3"
297                 path="/&amp;#34;&amp;#34;:my-element[1]/namespace::xml"
298                 name="xml">http://www.w3.org/XML/1998/namespace&lt;/χ:node>
299      &lt;/χ:entry>
300      &lt;χ:entry key="text" keyType="string">
301         &lt;χ:node type="text" instance="d3" path="/&amp;#34;&amp;#34;:my-element[1]/text()[1]">
302                Some text
303            &lt;/χ:node>
304      &lt;/χ:entry>
305      &lt;χ:entry key="doc" keyType="string">
306         &lt;χ:node type="document" instance="d3" ref="/"/>
307      &lt;/χ:entry>
308      &lt;χ:entry key="att" keyType="string">
309         &lt;χ:node xmlns:ns="http:example.com"
310                 type="attribute"
311                 instance="d3"
312                 path="/&amp;#34;&amp;#34;:my-element[1]/@&amp;#34;http:example.com&amp;#34;:my-attribute"
313                 name="ns:my-attribute">foo&lt;/χ:node>
314      &lt;/χ:entry>
315      &lt;χ:entry key="comment" keyType="string">
316         &lt;χ:node type="comment" instance="d3" path="/&amp;#34;&amp;#34;:my-element[1]/comment()[1]">A comment&lt;/χ:node>
317      &lt;/χ:entry>
318      &lt;χ:entry key="pi" keyType="string">
319         &lt;χ:node type="processing-instruction"
320                 instance="d3"
321                 path="/&amp;#34;&amp;#34;:my-element[1]/processing-instruction(&amp;#34;A&amp;#34;)[1]"
322                 name="A">processing instruction&lt;/χ:node>
323      &lt;/χ:entry>
324      &lt;χ:entry key="elt" keyType="string">
325         &lt;χ:node type="element"
326                 instance="d3"
327                 path="/&amp;#34;&amp;#34;:my-element[1]"
328                 name="my-element"/>
329      &lt;/χ:entry>
330   &lt;/χ:map>
331&lt;/χ:data-model>
332</pre><p>Note
333          that the node type, name and value are indicative. </p></div>
334      <div><h3>Map with nodes from different instances</h3><p>The map defined in XSLT
335          as:</p><pre>        &lt;xsl:variable name="json"
336            select="map{
337                'elt1'       := $nodes/my-element,
338                'att'        := $nodes/my-element/@*,
339                'elt2'       := $node/node1,
340            }"/>
341</pre><p>gives
342          the following χίμαιραλ
343        serialization:</p><pre>&lt;?xml version="1.0" encoding="UTF-8"?>
344&lt;χ:data-model xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:χ="http://χίμαιραλ.com#">
345   &lt;χ:instance id="d3">
346      &lt;node1>
347         &lt;foo/>
348         &lt;bar/>
349      &lt;/node1>
350      &lt;node2/>
351   &lt;/χ:instance>
352   &lt;χ:instance id="d4">
353      &lt;my-element xmlns:ns="http:example.com" ns:my-attribute="foo">&lt;!--A comment-->&lt;?A processing instruction?>&lt;ns:a-sub-element>bar&lt;/ns:a-sub-element>
354                Some text
355            &lt;/my-element>
356   &lt;/χ:instance>
357   &lt;χ:map>
358      &lt;χ:entry key="att" keyType="string">
359         &lt;χ:node xmlns:ns="http:example.com"
360                 type="attribute"
361                 instance="d4"
362                 path="/&amp;#34;&amp;#34;:my-element[1]/@&amp;#34;http:example.com&amp;#34;:my-attribute"
363                 name="ns:my-attribute">foo&lt;/χ:node>
364      &lt;/χ:entry>
365      &lt;χ:entry key="elt1" keyType="string">
366         &lt;χ:node type="element"
367                 instance="d4"
368                 path="/&amp;#34;&amp;#34;:my-element[1]"
369                 name="my-element"/>
370      &lt;/χ:entry>
371      &lt;χ:entry key="elt2" keyType="string">
372         &lt;χ:node type="element" instance="d3" path="/&amp;#34;&amp;#34;:node1[1]" name="node1"/>
373      &lt;/χ:entry>
374   &lt;/χ:map>
375&lt;/χ:data-model>
376</pre></div>
377    </div>
378   
379    <div>
380      <h2>The <a href="http://χίμαιραλ.com#">http://χίμαιραλ.com#</a> XML namespace</h2>
381      <p>The preferred prefix for this namespace is the greek letter "χ".The namespace is composed of the following elements:</p>
382      <div id="data-model">
383        <h3>χ:data-model</h3>
384        <p>An XDM 3.0 data model</p>
385        <div>
386          <h4>Attributes</h4>
387          <p>None</p>
388        </div>
389        <div>
390          <h4>Content</h4>
391          <p>χ:instance*, χ:map*</p>
392        </div>
393      </div>
394      <div id="instance">
395        <h3>χ:instance</h3>
396        <p>An XML instance</p>
397        <div>
398          <h4>Attributes</h4>
399          <ul>
400            <li>id (mandatory): the instance id</li>
401          </ul>
402        </div>
403        <div>
404          <h4>Content</h4>
405          <p>Any element from any other namespace.</p>
406        </div>
407      </div>
408      <div id="map">
409        <h3>χ:map</h3>
410        <p>An XDM 3.0 map.</p>
411        <div>
412          <h4>Attributes</h4>
413          <p>None</p>
414        </div>
415        <div>
416          <h4>Content</h4>
417          <p>χ:entry *</p>
418        </div>
419      </div>
420      <div id="item">
421        <h3>χ:entry</h3>
422        <p>An XDM 3.0 map entry.</p>
423        <div>
424          <h4>Attributes</h4>
425          <ul>
426            <li>key (mandatory for map items): the value of the item key.</li>
427            <li>keyType (mandatory for map items): the type of the item key.</li>
428            <li>valueType (mandatory for atomic values): the type of the item value.</li>
429          </ul>
430        </div>
431        <div>
432          <h4>Content</h4>
433          <p>(χ:map | χ:node | χ:atomic-value) *</p>
434          <p>One of these elements are mandatory when the valueType attribute is omitted.</p>
435        </div>
436      </div>
437      <div id="atomic-value">
438        <h3>χ:atomic-value</h3>
439        <p>An XDM atomic value</p>
440        <div>
441          <h4>Attributes</h4>
442          <ul>
443            <li>type: the type of the atomic value</li>
444          </ul>
445         </div>
446        <div>
447          <h4>Content</h4>
448          <p>The value</p>
449        </div>
450      </div>
451      <div id="node">
452        <h3>χ:node</h3>
453        <p>An XDM nodeset</p>
454        <div>
455          <h4>Attributes</h4>
456          <ul>
457            <li>instance: the id of the instance holding the node</li>
458            <li>path: an XPath expression selecting the node in its instance</li>
459             <li>type (indicative): node type</li>
460            <li>name (when applicable, indicative): name of the node</li>
461          </ul>
462        </div>
463        <div>
464          <h4>Content</h4>
465          <p>Depending on the node type: its value (indicative).</p>
466        </div>
467      </div>
468    </div>
469    <div id="changelog">
470      <h2>Changelog</h2>
471      <p>This version (0.3) takes a new approach to represent nodes in map entries using XPath expressions rather than id/irdefs.</p>
472      <p>Main changes:</p>
473      <ul>
474        <li>An <code>χ:data-model</code> root element has been added</li>
475        <li>An <code>χ:instance</code> element has been added to enclose XML instances.</li>
476        <li>The <code>χ:node</code> element looses its id/idref attributes in favor of instance and path attributes.</li>
477      </ul>
478      <p>A detailed changelog is available at <a href="http://χίμαιραλ.com/trac/log/spec/index.html">http://χίμαιραλ.com/trac/log/spec/index.html</a> as a web page and as a <a href="http://χίμαιραλ.com/trac/log/spec/index.html?format=rss&amp;limit=100&amp;mode=stop_on_copy">RSS feed</a>.</p>
479    </div>
480    <div>
481      <h2>Legal Statement</h2>
482      <p>Copyright (c) 2012 Eric van der Vlist</p>
483      <p>Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the ``Software''), to deal in the Software without
484        restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
485        Software is furnished to do so, subject to the following conditions:</p>
486      <ol>
487        <li>The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. </li>
488        <li>The name of the authors when specified in the source files shall be kept unmodified.</li>
489      </ol>
490      <p>THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
491        NONINFRINGEMENT. IN NO EVENT SHALL ERIC VAN DER VLIST BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
492        CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.</p>
493    </div>
494  </body>
495</html>
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