website: Update manual.
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David Thompson
@@ -9,7 +9,7 @@ any later version published by the Free Software Foundation; with no
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Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A
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copy of the license is included in the section entitled "GNU Free
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Documentation License". -->
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<!-- Created by GNU Texinfo 6.0, http://www.gnu.org/software/texinfo/ -->
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<!-- Created by GNU Texinfo 6.3, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>Haunt Reference Manual: Readers</title>
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@@ -23,7 +23,7 @@ Documentation License". -->
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<link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Programming-Interface.html#Programming-Interface" rel="up" title="Programming Interface">
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<link href="Pages.html#Pages" rel="next" title="Pages">
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<link href="Reader.html#Reader" rel="next" title="Reader">
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<link href="Posts.html#Posts" rel="prev" title="Posts">
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<style type="text/css">
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@@ -67,113 +66,17 @@ Next: <a href="Pages.html#Pages" accesskey="n" rel="next">Pages</a>, Previous: <
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<a name="Readers-1"></a>
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<h3 class="section">5.3 Readers</h3>
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<div class="example">
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<pre class="example">(use-modules (haunt reader))
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</pre></div>
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<table class="menu" border="0" cellspacing="0">
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<tr><td align="left" valign="top">• <a href="Reader.html#Reader" accesskey="1">Reader</a>:</td><td> </td><td align="left" valign="top">Reader interface and basic readers
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</td></tr>
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<tr><td align="left" valign="top">• <a href="Texinfo.html#Texinfo" accesskey="2">Texinfo</a>:</td><td> </td><td align="left" valign="top">Texinfo reader
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</td></tr>
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<tr><td align="left" valign="top">• <a href="Skribe.html#Skribe" accesskey="3">Skribe</a>:</td><td> </td><td align="left" valign="top">Skribe reader
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</td></tr>
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<tr><td align="left" valign="top">• <a href="CommonMark.html#CommonMark" accesskey="4">CommonMark</a>:</td><td> </td><td align="left" valign="top">CommonMark reader
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</td></tr>
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</table>
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<p>The purpose of a reader is to translate the markup within a post file
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into an SXML tree representing the HTML structure and associate some
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metadata with it.
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</p>
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<dl>
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<dt><a name="index-make_002dreader"></a>Scheme Procedure: <strong>make-reader</strong> <em><var>matcher</var> <var>proc</var></em></dt>
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<dd><p>Create a new reader. The reader is to be activated when
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<var>matcher</var>, a procedure that accepts a file name as its only
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argument, returns <code>#t</code>. When a post file matches, the procedure
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<var>proc</var>, which also accepts a file name as its only argument, reads
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the contents and returns a post object (see <a href="Posts.html#Posts">Posts</a>).
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</p></dd></dl>
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<dl>
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<dt><a name="index-reader_003f"></a>Scheme Procedure: <strong>reader?</strong> <em><var>object</var></em></dt>
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<dd><p>Return <code>#t</code> if <var>object</var> is a reader.
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</p></dd></dl>
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<dl>
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<dt><a name="index-reader_002dmatcher"></a>Scheme Procedure: <strong>reader-matcher</strong> <em><var>reader</var></em></dt>
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<dd><p>Return the match procedure for <var>reader</var>.
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</p></dd></dl>
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<dl>
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<dt><a name="index-reader_002dmatcher-1"></a>Scheme Procedure: <strong>reader-matcher</strong> <em><var>reader</var></em></dt>
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<dd><p>Return the read procedure for <var>reader</var>.
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</p></dd></dl>
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<dl>
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<dt><a name="index-reader_002dmatch_003f"></a>Scheme Procedure: <strong>reader-match?</strong> <em><var>reader</var> <var>file-name</var></em></dt>
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<dd><p>Return <code>#t</code> if <var>file-name</var> is a file supported by
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<var>reader</var>.
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</p></dd></dl>
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<dl>
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<dt><a name="index-read_002dpost"></a>Scheme Procedure: <strong>read-post</strong> <em><var>reader</var> <var>file-name</var> [<var>default-metadata</var>]</em></dt>
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<dd><p>Read a post object from <var>file-name</var> using <var>reader</var>, merging
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its metadata with <var>default-metadata</var>, or the empty list if not
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specified.
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</p></dd></dl>
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<dl>
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<dt><a name="index-read_002dposts"></a>Scheme Procedure: <strong>read-posts</strong> <em><var>directory</var> <var>keep?</var> <var>readers</var> [<var>default-metadata</var>]</em></dt>
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<dd><p>Read all of the files in <var>directory</var> that match <var>keep?</var> as
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post objects. The <var>readers</var> list must contain a matching reader
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for every post.
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</p></dd></dl>
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<dl>
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<dt><a name="index-make_002dfile_002dextension_002dmatcher"></a>Scheme Procedure: <strong>make-file-extension-matcher</strong> <em><var>ext</var></em></dt>
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<dd><p>Create a procedure that returns <code>#t</code> when a file name ends with
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“.ext”.
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</p></dd></dl>
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<dl>
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<dt><a name="index-sxml_002dreader"></a>Scheme Procedure: <strong>sxml-reader</strong></dt>
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<dd><p>A basic reader for posts written as Scheme code that evaluates to an
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an association list. The special key <code>content</code> contains the post
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body as an SXML tree.
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</p>
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<p>Example:
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</p>
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<div class="example">
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<pre class="example">(use-modules (haunt utils))
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`((title . "Hello, world!")
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(date . ,(string->date* "2015-04-10 23:00"))
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(tags "foo" "bar")
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(summary . "Just a test")
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(content
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((h2 "Hello!")
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(p "This is Haunt. A static site generator for GNU Guile."))))
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</pre></div>
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</dd></dl>
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<dl>
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<dt><a name="index-html_002dreader"></a>Scheme Procedure: <strong>html-reader</strong></dt>
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<dd><p>A basic reader for posts written in plain ol’ HTML. Metadata is
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encoded as the <code>key: value</code> pairs, one per line, at the beginning
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of the file. A line with the <code>---</code> sentinel marks the end of the
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metadata section and the rest of the file is encoded as HTML.
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</p>
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<p>Example:
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</p>
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<div class="example">
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<pre class="example">title: A Foo Walks Into a Bar
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date: 2015-04-11 20:00
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tags: bar
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---
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<p>
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This is an example using raw HTML, because Guile doesn't have a
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Markdown parser.
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</p>
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</pre></div>
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</dd></dl>
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<hr>
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<div class="header">
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<p>
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Next: <a href="Pages.html#Pages" accesskey="n" rel="next">Pages</a>, Previous: <a href="Posts.html#Posts" accesskey="p" rel="prev">Posts</a>, Up: <a href="Programming-Interface.html#Programming-Interface" accesskey="u" rel="up">Programming Interface</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p>
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</div>
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