--- a/rdf-spaces/index.html Thu May 10 20:12:28 2012 +0100
+++ b/rdf-spaces/index.html Thu May 10 20:13:49 2012 +0100
@@ -46,7 +46,7 @@
// if you want to have extra CSS, append them to this list
// it is recommended that the respec.css stylesheet be kept
- extraCSS: ["http://dvcs.w3.org/hg/rdf/raw-file/default/ReSpec.js/css/respec.css", "http://dvcs.w3.org/hg/rdf/raw-file/default/rdf-spaces/local.css"],
+ extraCSS: ["http://dvcs.w3.org/hg/rdf/raw-file/default/ReSpec.js/css/respec.css"],
// editors, add as many as you like
// only "name" is required
@@ -95,6 +95,34 @@
// @@@ A number of references have been patched into the local berjon.biblio and need to be added to the global biblio in CVS:
</script>
+
+
+ <style type="text/css">
+
+ .alert {
+ padding: 1em;
+ margin: 0em;
+ margin-bottom: 2em;
+
+ border:2px solid blue;
+
+ box-shadow: 10px 10px 5px #888;
+ -moz-box-shadow: 10px 10px 5px #888;
+ -webkit-box-shadow: 10px 10px 5px #888;
+
+ -moz-border-radius: 5px;
+ -webkit-border-radius: 5px;
+ -khtml-border-radius: 5px;
+ border-radius: 5px;
+ }
+
+ .separated thead tr th { border:1px solid black; padding: .2em; }
+ .separated tbody tr td { border:1px solid black; text-align: center; }
+ .separated tbody tr td.r { text-align: right; padding: .5em; }
+ .grammar td { font-family: monospace;}
+ .grammar-literal { color: gray;}
+ </style>
+
</head>
<body>
@@ -480,20 +508,66 @@
<p>The syntax of N-Quads is the same as the syntax of N-Triples,
except that a fourth term, identifying an RDF space, may
- optionally included on each line, after the "object" term.</p>
+ optionally be included on each line, after the "object" term.</p>
+
+ <p>Formally, the N-Quads grammar is <a href="http://dvcs.w3.org/hg/rdf/raw-file/default/rdf-turtle/index.html#">the N-Triples
+ Grammar</a> modified by removing productions [1] and [2], and
+ adding the following productions:</p>
+
+<div style="margin: 1em; margin-top: 0; padding: 1em; border: 1px solid gray;">
+
+<table border="0" class="grammar">
+
+<tbody class="prod">
+<tr valign="baseline">
+<td><a id="prod-sandro-nquads-nquadsDoc" name="prod-sandro-nquads-nquadsDoc"></a>[<span class="prodNo">1q</span>] </td>
+<td><code class="production prod">nquadsDoc</code></td>
+<td> ::= </td>
+<td><code class="content">(<span class="prod"><a class="grammarRef" href="#prod-sandro-nquads-statement">statement</a></span>)? (<span class="prod"><a class="grammarRef" href="#prod-sandro-nquads-EOL">EOL</a></span> <span class="prod"><a class="grammarRef" href="#prod-sandro-nquads-statement">statement</a></span>)* (<span class="prod"><a class="grammarRef" href="#prod-sandro-nquads-EOL">EOL</a></span>)?</code></td>
+</tr>
+</tbody>
+
+<tbody class="prod">
+<tr valign="baseline">
+<td><a id="prod-sandro-nquads-statement" name="prod-sandro-nquads-statement"></a>[<span class="prodNo">2q</span>] </td>
+<td><code class="production prod">statement</code></td>
+<td> ::= </td>
+<td><code class="content"><span class="prod"><a class="grammarRef" href="#prod-sandro-nquads-subject">subject</a></span> <span class="prod"><a class="grammarRef" href="#prod-sandro-nquads-predicate">predicate</a></span> <span class="prod"><a class="grammarRef" href="#prod-sandro-nquads-object">object</a></span> (<span class="prod"><a class="grammarRef" href="#prod-sandro-nquads-space">space</a></span>)? "."</code></td>
+</tr>
+</tbody>
+
+<tbody class="prod">
+<tr valign="baseline">
+<td><a id="prod-sandro-nquads-space" name="prod-sandro-nquads-space"></a>[<span class="prodNo">3q</span>] </td>
+<td><code class="production prod">space</code></td>
+<td> ::= </td>
+<td><code class="content"><span class="prod"><a class="grammarRef" href="#prod-sandro-nquads-IRIREF">IRIREF</a></span></code></td>
+</tr>
+</tbody>
+
+</table>
+
+<p>The grammar symbols
+<code class="production prod" id="prod-sandro-nquads-EOL">EOL</code>,
+<code class="production prod" id="prod-sandro-nquads-subject">subject</code>
+<code class="production prod" id="prod-sandro-nquads-predicate">predicate</code>
+<code class="production prod" id="prod-sandro-nquads-object">object</code>, and
+<code class="production prod" id="prod-sandro-nquads-IRIREF">IRIREF</code> are defined in the <a
+href="http://dvcs.w3.org/hg/rdf/raw-file/default/rdf-turtle/index.html#">the
+N-Triples Grammar</a></p>
+
+</div>
+
+ <p>The following example shows a <a>quadset</a> consisting of two
+ triples and two <a>quads</a>. The quads both use the same triple,
+ but express the fact that it is in two spaces, "space1" and
+ "space2".</p>
<pre class="example"><http://example.org/subject> <http://example.org/predicate> <http://example.org/object1>.
<http://example.org/subject> <http://example.org/predicate> <http://example.org/object2>.
-<http://example.org/subject> <http://example.org/predicate> <http://example.org/object1> <http://example.org/space1> .
+<http://example.org/subject> <http://example.org/predicate> <http://example.org/object1> <http://example.org/space1>.
<http://example.org/subject> <http://example.org/predicate> <http://example.org/object1> <http://example.org/space2>.</pre>
- <p>This example shows a <a>quadset</a> consisting of two triples
- and two <a>quads</a>. The quads both use the same triple, but
- express the fact that is is in two spaces, "space1" and
- "space2".</p>
-
- <p>@@@ grammar, etc, based of Turtle spec</p>
-
</section>
@@ -1059,7 +1133,7 @@
<section class="appendix informative" id="changes">
<h2>Changes</h2>
<ul>
- <li>2012-05-10: Wrote a short intro. Started writing the Use Cases section for real</li>
+ <li>2012-05-10: Wrote a short intro. Started writing the Use Cases section for real. Added grammar for N-Quads.</li>
<li>2012-05-09: Renamed "layers" as "spaces"; some word-smithing in Concepts and the Abstract; removed "Turtle in HTML" as a dataset syntax; added some text about trig and nquads; added a note about change-over-time; added an appendix with a reflection vocabulary</li>
<li>2012-05-02: Removed obsolete text from the introduction, removed the section on datasets borrowed from RDF Concepts, and added many entries to Concepts (and renamed it from Terminology).</li>
<li>2012-05-01: Starting with a little text from RDF Concepts, a few ideas, and the text from <a href="http://www.w3.org/2011/rdf-wg/wiki/Layers">Layers</a></li>