<?xml version="1.0"?>
<?xml-stylesheet type="text/css" href="http://fileformats.archiveteam.org/skins/common/feed.css?303"?>
<feed xmlns="http://www.w3.org/2005/Atom" xml:lang="en">
		<id>http://fileformats.archiveteam.org/index.php?action=history&amp;feed=atom&amp;title=ALAN_2</id>
		<title>ALAN 2 - Revision history</title>
		<link rel="self" type="application/atom+xml" href="http://fileformats.archiveteam.org/index.php?action=history&amp;feed=atom&amp;title=ALAN_2"/>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=ALAN_2&amp;action=history"/>
		<updated>2026-04-21T22:35:02Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
		<generator>MediaWiki 1.19.2</generator>

	<entry>
		<id>http://fileformats.archiveteam.org/index.php?title=ALAN_2&amp;diff=30932&amp;oldid=prev</id>
		<title>Effect2: Added reference to 1993 (apparent release) in main body; added year when ALAN 2 development was abandoned; changed wording &quot;versions&quot; -&gt; &quot;version&quot;; added source repository in #Software</title>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=ALAN_2&amp;diff=30932&amp;oldid=prev"/>
				<updated>2019-02-24T22:14:14Z</updated>
		
		<summary type="html">&lt;p&gt;Added reference to 1993 (apparent release) in main body; added year when ALAN 2 development was abandoned; changed wording &amp;quot;versions&amp;quot; -&amp;gt; &amp;quot;version&amp;quot;; added source repository in &lt;a href=&quot;#Software&quot;&gt;#Software&lt;/a&gt;&lt;/p&gt;
&lt;table class='diff diff-contentalign-left'&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
			&lt;tr valign='top'&gt;
			&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
			&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 22:14, 24 February 2019&lt;/td&gt;
			&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 6:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 6:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;}}&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;'''ALAN''' is an [[Interactive Fiction|interactive fiction]] system written by &amp;quot;Göran Forslund&amp;quot; and &amp;quot;Thomas Nilsson&amp;quot; first released in 1985&amp;lt;ref&amp;gt;[http://www.ifwiki.org/index.php/Alan]. Note that the year of the earliest extant files, in [http://www.ifarchive.org/indexes/if-archive/programming/alan/source/compiler286src.tgz], is 1993, and therefore the 1985 claim cannot be verified.&amp;lt;/ref&amp;gt;, apparently with a connection to a company named &amp;quot;SoftLab&amp;quot;&amp;lt;ref&amp;gt;[http://www.ifarchive.org/indexes/if-archive/programming/alan/source/compiler286src.tgz], README.SRC&amp;lt;/ref&amp;gt;. Although '''&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;versions &lt;/del&gt;2''' has some internal format inconsistencies, they are similar enough that they can be categorized as a single format (See [[#Formats of Compiled Versions]]); however, [[ALAN 3]] is entirely different and is treated here and elsewhere as a separate interactive fiction system.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;'''ALAN''' is an [[Interactive Fiction|interactive fiction]] system written by &amp;quot;Göran Forslund&amp;quot; and &amp;quot;Thomas Nilsson&amp;quot; first released in 1985&amp;lt;ref&amp;gt;[http://www.ifwiki.org/index.php/Alan]. Note that the year of the earliest extant files, in [http://www.ifarchive.org/indexes/if-archive/programming/alan/source/compiler286src.tgz], is 1993, and therefore the 1985 claim cannot be verified.&amp;lt;/ref&amp;gt;, apparently with a connection to a company named &amp;quot;SoftLab&amp;quot;&amp;lt;ref&amp;gt;[http://www.ifarchive.org/indexes/if-archive/programming/alan/source/compiler286src.tgz], README.SRC&amp;lt;/ref&amp;gt;. Although '''&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;version &lt;/ins&gt;2'''&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;, released ca. 1993 and superseded by ALAN 3 in 2005&amp;lt;ref&amp;gt;https://web.archive.org/web/20050728095717/http://www.alanif.se/, section &amp;quot;News&amp;quot; and &amp;quot;Version 3 in the Works&amp;quot;&amp;lt;/ref&amp;gt;, &lt;/ins&gt;has some internal format inconsistencies, they are similar enough that they can be categorized as a single format (See [[#Formats of Compiled Versions]]); however, [[ALAN 3]] is entirely different and is treated here and elsewhere as a separate interactive fiction system.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;As with most interactive fiction formats, ALAN 2 uses a compiler (a program named only &amp;quot;alan&amp;quot;) to convert &amp;quot;source&amp;quot; files to portable &amp;quot;compiled&amp;quot; versions, which can then be run with an interpreter (&amp;quot;arun&amp;quot;).&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;As with most interactive fiction formats, ALAN 2 uses a compiler (a program named only &amp;quot;alan&amp;quot;) to convert &amp;quot;source&amp;quot; files to portable &amp;quot;compiled&amp;quot; versions, which can then be run with an interpreter (&amp;quot;arun&amp;quot;).&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 29:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 29:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* [http://www.ifarchive.org/indexes/if-archive/programming/alan/old/ Version 2.5 and 2.6 interpreters only, in the IF Archive]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* [http://www.ifarchive.org/indexes/if-archive/programming/alan/old/ Version 2.5 and 2.6 interpreters only, in the IF Archive]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* [http://www.ifarchive.org/indexes/if-archive/programming/alan/source/ The source of the 2.8.6 compiler and interpreter, in the IF Archive]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* [http://www.ifarchive.org/indexes/if-archive/programming/alan/source/ The source of the 2.8.6 compiler and interpreter, in the IF Archive]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;* [https://bitbucket.org/alanif/alan/overview The source code of ALAN 2 and 3, starting from 1993]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* [[Gargoyle]], although it failed when tested&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* [[Gargoyle]], although it failed when tested&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Effect2</name></author>	</entry>

	<entry>
		<id>http://fileformats.archiveteam.org/index.php?title=ALAN_2&amp;diff=30930&amp;oldid=prev</id>
		<title>Effect2: /* Links */ Added the other domain to the links</title>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=ALAN_2&amp;diff=30930&amp;oldid=prev"/>
				<updated>2019-02-24T21:24:36Z</updated>
		
		<summary type="html">&lt;p&gt;‎&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Links: &lt;/span&gt; Added the other domain to the links&lt;/span&gt;&lt;/p&gt;
&lt;table class='diff diff-contentalign-left'&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
			&lt;tr valign='top'&gt;
			&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
			&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 21:24, 24 February 2019&lt;/td&gt;
			&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 39:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 39:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* [http://www.ifwiki.org/index.php/Alan ALAN 2 at the Interactive Fiction wiki]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* [http://www.ifwiki.org/index.php/Alan ALAN 2 at the Interactive Fiction wiki]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* [https://web.archive.org/web/20050319164944/http://junovagen.se/alan/faq.html the ALAN 2 FAQ]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* [https://web.archive.org/web/20050319164944/http://junovagen.se/alan/faq.html the ALAN 2 FAQ]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;* [https://web.archive.org/web/20051129021925/http://www.alanif.se/ A later version of the ALAN website, also covering version 3]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== References ==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== References ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Effect2</name></author>	</entry>

	<entry>
		<id>http://fileformats.archiveteam.org/index.php?title=ALAN_2&amp;diff=30873&amp;oldid=prev</id>
		<title>Effect2: Added some WBM links</title>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=ALAN_2&amp;diff=30873&amp;oldid=prev"/>
				<updated>2019-02-11T01:01:01Z</updated>
		
		<summary type="html">&lt;p&gt;Added some WBM links&lt;/p&gt;
&lt;table class='diff diff-contentalign-left'&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
			&lt;tr valign='top'&gt;
			&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
			&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 01:01, 11 February 2019&lt;/td&gt;
			&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 34:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 34:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* [http://www.ifarchive.org/indexes/if-archive/programming/alan/examples/ Source files in the IF Archive]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* [http://www.ifarchive.org/indexes/if-archive/programming/alan/examples/ Source files in the IF Archive]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* [http://www.ifarchive.org/indexes/if-archive/games/alan/ A mix of ALAN 2 and 3 games in the IF Archive]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* [http://www.ifarchive.org/indexes/if-archive/games/alan/ A mix of ALAN 2 and 3 games in the IF Archive]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;* [https://web.archive.org/web/20050319185929if_/http://junovagen.se/alan/samples.html Official examples]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== Links ==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== Links ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* [http://www.ifwiki.org/index.php/Alan ALAN 2 at the Interactive Fiction wiki]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* [http://www.ifwiki.org/index.php/Alan ALAN 2 at the Interactive Fiction wiki]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;* [https://web.archive.org/web/20050319164944/http://junovagen.se/alan/faq.html the ALAN 2 FAQ]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== References ==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== References ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Effect2</name></author>	</entry>

	<entry>
		<id>http://fileformats.archiveteam.org/index.php?title=ALAN_2&amp;diff=30871&amp;oldid=prev</id>
		<title>Effect2: Added to :Category:Multi-file formats</title>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=ALAN_2&amp;diff=30871&amp;oldid=prev"/>
				<updated>2019-02-11T00:30:27Z</updated>
		
		<summary type="html">&lt;p&gt;Added to &lt;a href=&quot;/wiki/Category:Multi-file_formats&quot; title=&quot;Category:Multi-file formats&quot;&gt;Category:Multi-file formats&lt;/a&gt;&lt;/p&gt;
&lt;table class='diff diff-contentalign-left'&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
			&lt;tr valign='top'&gt;
			&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
			&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 00:30, 11 February 2019&lt;/td&gt;
			&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 40:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 40:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== References ==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== References ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;lt;references /&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;lt;references /&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;[[Category:Multi-file formats]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Effect2</name></author>	</entry>

	<entry>
		<id>http://fileformats.archiveteam.org/index.php?title=ALAN_2&amp;diff=30865&amp;oldid=prev</id>
		<title>Effect2: Created page with &quot;{{FormatInfo |formattype=electronic |subcat=Interactive Fiction |extensions={{ext|alan}}, {{ext|ala}}, {{ext|i}}, {{ext|acd}}, {{ext|dat}} |released=1993 &lt;!-- Presumably, vers...&quot;</title>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=ALAN_2&amp;diff=30865&amp;oldid=prev"/>
				<updated>2019-02-10T23:59:46Z</updated>
		
		<summary type="html">&lt;p&gt;Created page with &amp;quot;{{FormatInfo |formattype=electronic |subcat=Interactive Fiction |extensions={{ext|alan}}, {{ext|ala}}, {{ext|i}}, {{ext|acd}}, {{ext|dat}} |released=1993 &amp;lt;!-- Presumably, vers...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{FormatInfo&lt;br /&gt;
|formattype=electronic&lt;br /&gt;
|subcat=Interactive Fiction&lt;br /&gt;
|extensions={{ext|alan}}, {{ext|ala}}, {{ext|i}}, {{ext|acd}}, {{ext|dat}}&lt;br /&gt;
|released=1993 &amp;lt;!-- Presumably, version 1 was released in 1985; I date version 2 from those earliest files in reference 1. --&amp;gt;&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
'''ALAN''' is an [[Interactive Fiction|interactive fiction]] system written by &amp;quot;Göran Forslund&amp;quot; and &amp;quot;Thomas Nilsson&amp;quot; first released in 1985&amp;lt;ref&amp;gt;[http://www.ifwiki.org/index.php/Alan]. Note that the year of the earliest extant files, in [http://www.ifarchive.org/indexes/if-archive/programming/alan/source/compiler286src.tgz], is 1993, and therefore the 1985 claim cannot be verified.&amp;lt;/ref&amp;gt;, apparently with a connection to a company named &amp;quot;SoftLab&amp;quot;&amp;lt;ref&amp;gt;[http://www.ifarchive.org/indexes/if-archive/programming/alan/source/compiler286src.tgz], README.SRC&amp;lt;/ref&amp;gt;. Although '''versions 2''' has some internal format inconsistencies, they are similar enough that they can be categorized as a single format (See [[#Formats of Compiled Versions]]); however, [[ALAN 3]] is entirely different and is treated here and elsewhere as a separate interactive fiction system.&lt;br /&gt;
&lt;br /&gt;
As with most interactive fiction formats, ALAN 2 uses a compiler (a program named only &amp;quot;alan&amp;quot;) to convert &amp;quot;source&amp;quot; files to portable &amp;quot;compiled&amp;quot; versions, which can then be run with an interpreter (&amp;quot;arun&amp;quot;).&lt;br /&gt;
&lt;br /&gt;
== Extensions ==&lt;br /&gt;
Source files use the extension .alan, although this is very frequently shortened to .ala, presumably due to [[DOS]] naming restrictions.&amp;lt;ref name=&amp;quot;ifarcExamples&amp;quot;&amp;gt;http://www.ifarchive.org/indexes/if-archive/programming/alan/examples/&amp;lt;/ref&amp;gt; Libraries (which are bundled with the normal files during  compilation, and therefore have no compiled counterpart) also appeared to have sometimes used the extension .i.&amp;lt;ref name=&amp;quot;ifarcExamples&amp;quot; /&amp;gt;. The compiled format is a multi-file format, putting the instructions into a file with the extension .acd and the textual strings into a file with the extension .dat.&lt;br /&gt;
&lt;br /&gt;
== Incompatibilities in Compiled Versions ==&lt;br /&gt;
Compatibility of compiled files seems to have been broken upon almost each release of a minor version, to the point that it would produce too much clutter to have individual pages for formats 2.4, 2.5, 2.6, 2.7, etc. All interpreted versions use the same set of extensions. See [[#Specifications]] for details of versions and interpreter compatibility.&lt;br /&gt;
&lt;br /&gt;
== Identification ==&lt;br /&gt;
.alan files will probably contain the following strings: &amp;quot;VERB&amp;quot;, &amp;quot;END VERB&amp;quot;, &amp;quot;SYNTAX&amp;quot;, &amp;quot;ACTOR, and &amp;quot;END ACTOR&amp;quot;, in [[ASCII]].&lt;br /&gt;
&lt;br /&gt;
.acd files each start with their version, with one level per byte; version 2.6.1 starts with 0x02 0x06 0x01. All surveyed examples have the last byte set to 0x01, and it may be possible that this is always 0x01 due to changes in the last version not breaking compatibility&amp;lt;ref&amp;gt;[http://www.ifarchive.org/if-archive/programming/alan/old/alan260doc.pdf], page 120, section J5&amp;lt;/ref&amp;gt;. If this is true, it may be that (as has been observed) all ALAN 2 .acd files start with 0x02 [A single varying byte] 0x01 0x00 0x00 0x00 (although it is unclear what the 0x00s are for, or if they are necessarily included).&lt;br /&gt;
&lt;br /&gt;
== Specifications ==&lt;br /&gt;
* [http://www.ifarchive.org/if-archive/programming/alan/manuals/alandoc28html.zip], containing grammar.html (a formal documentation of the syntax in [[Backus-Naur form]]) and language.html (containing a detailed but informal explanation of all the parts of the language) for version 2.8. This is also available in PDF form at [http://www.ifarchive.org/if-archive/programming/alan/manuals/alanmanual28.pdf].&lt;br /&gt;
* Page 114 of [http://www.ifarchive.org/if-archive/programming/alan/manuals/alanmanual28.pdf], documenting differences between versions and interpreter compatibility&lt;br /&gt;
&lt;br /&gt;
== Software ==&lt;br /&gt;
* [http://www.ifarchive.org/indexes/if-archive/programming/alan/executables/ Versions 2.7 and 2.8, both compilers and interpreters, in the IF Archive]&lt;br /&gt;
* [http://www.ifarchive.org/indexes/if-archive/programming/alan/old/ Version 2.5 and 2.6 interpreters only, in the IF Archive]&lt;br /&gt;
* [http://www.ifarchive.org/indexes/if-archive/programming/alan/source/ The source of the 2.8.6 compiler and interpreter, in the IF Archive]&lt;br /&gt;
* [[Gargoyle]], although it failed when tested&lt;br /&gt;
&lt;br /&gt;
== Sample Files ==&lt;br /&gt;
* [http://www.ifarchive.org/indexes/if-archive/programming/alan/examples/ Source files in the IF Archive]&lt;br /&gt;
* [http://www.ifarchive.org/indexes/if-archive/games/alan/ A mix of ALAN 2 and 3 games in the IF Archive]&lt;br /&gt;
&lt;br /&gt;
== Links ==&lt;br /&gt;
* [http://www.ifwiki.org/index.php/Alan ALAN 2 at the Interactive Fiction wiki]&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
&amp;lt;references /&amp;gt;&lt;/div&gt;</summary>
		<author><name>Effect2</name></author>	</entry>

	</feed>