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href="https://de.wikipedia.org/wiki/AutoLISP" title="AutoLISP – German" lang="de" hreflang="de" data-title="AutoLISP" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Autolisp" title="Autolisp – Spanish" lang="es" hreflang="es" data-title="Autolisp" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/AutoLISP" title="AutoLISP – Italian" lang="it" hreflang="it" data-title="AutoLISP" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/AutoLISP" title="AutoLISP – Hebrew" lang="he" hreflang="he" data-title="AutoLISP" data-language-autonym="עברית" data-language-local-name="Hebrew" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/AutoLISP" title="AutoLISP – Lithuanian" lang="lt" hreflang="lt" data-title="AutoLISP" data-language-autonym="Lietuvių" data-language-local-name="Lithuanian" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/AutoLISP" title="AutoLISP – Hungarian" lang="hu" hreflang="hu" data-title="AutoLISP" data-language-autonym="Magyar" data-language-local-name="Hungarian" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/AutoLISP" title="AutoLISP – Malay" lang="ms" hreflang="ms" data-title="AutoLISP" data-language-autonym="Bahasa Melayu" data-language-local-name="Malay" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/AutoLISP" title="AutoLISP – Dutch" lang="nl" hreflang="nl" data-title="AutoLISP" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/AutoLISP" title="AutoLISP – Polish" lang="pl" hreflang="pl" data-title="AutoLISP" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/AutoLISP" title="AutoLISP – Portuguese" lang="pt" hreflang="pt" data-title="AutoLISP" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/AutoLISP" title="AutoLISP – Swedish" lang="sv" hreflang="sv" data-title="AutoLISP" data-language-autonym="Svenska" data-language-local-name="Swedish" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/AutoLISP" title="AutoLISP – Turkish" lang="tr" hreflang="tr" data-title="AutoLISP" data-language-autonym="Türkçe" data-language-local-name="Turkish" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/AutoLISP" title="AutoLISP – Ukrainian" lang="uk" hreflang="uk" data-title="AutoLISP" data-language-autonym="Українська" data-language-local-name="Ukrainian" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/AutoLISP" title="AutoLISP – Cantonese" lang="yue" hreflang="yue" data-title="AutoLISP" data-language-autonym="粵語" data-language-local-name="Cantonese" class="interlanguage-link-target"><span>粵語</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/AutoLISP" title="AutoLISP – Chinese" lang="zh" hreflang="zh" data-title="AutoLISP" data-language-autonym="中文" data-language-local-name="Chinese" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q782397#sitelinks-wikipedia" title="Edit interlanguage links" class="wbc-editpage">Edit links</a></span></div> </div> </div> </div> </header> <div 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<div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">LISP computer programming language variant</div> <style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox vevent"><caption class="infobox-title summary">AutoLISP</caption><tbody><tr><td colspan="2" class="infobox-image"><span typeof="mw:File"><a href="/wiki/File:AutoLISP_Code_Example.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/3a/AutoLISP_Code_Example.png/300px-AutoLISP_Code_Example.png" decoding="async" width="300" height="238" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/3a/AutoLISP_Code_Example.png/450px-AutoLISP_Code_Example.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/3a/AutoLISP_Code_Example.png/600px-AutoLISP_Code_Example.png 2x" data-file-width="939" data-file-height="745" /></a></span></td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Programming_paradigm" title="Programming paradigm">Paradigms</a></th><td class="infobox-data"><a href="/wiki/Multi-paradigm_programming_language" class="mw-redirect" title="Multi-paradigm programming language">Multi-paradigm</a>: <a href="/wiki/Functional_programming" title="Functional programming">functional</a>, <a href="/wiki/Procedural_programming" title="Procedural programming">procedural</a>, <a href="/wiki/Reflective_programming" title="Reflective programming">reflective</a>, <a href="/wiki/Metaprogramming" title="Metaprogramming">meta</a></td></tr><tr><th scope="row" class="infobox-label">Family</th><td class="infobox-data"><a href="/wiki/Lisp_(programming_language)" title="Lisp (programming language)">Lisp</a></td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Software_design" title="Software design">Designed by</a></th><td class="infobox-data">David Betz</td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Software_developer" class="mw-redirect" title="Software developer">Developers</a></th><td class="infobox-data organiser"><a href="/wiki/Autodesk" title="Autodesk">Autodesk</a>, Basis Software</td></tr><tr><th scope="row" class="infobox-label">First appeared</th><td class="infobox-data">January 1986<span class="noprint">; 39 years ago</span><span style="display:none"> (<span class="bday dtstart published updated">1986-01</span>)</span></td></tr><tr><td colspan="2" class="infobox-full-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Software_release_life_cycle" title="Software release life cycle">Final release</a></th><td class="infobox-data"><div style="margin:0px;">13 / February 1995<span class="noprint">; 30 years ago</span><span style="display:none"> (<span class="bday dtstart published updated">1995-02</span>)</span></div></td></tr><tr style="display:none"><td colspan="2"> </td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Type_system" title="Type system">Typing discipline</a></th><td class="infobox-data"><a href="/wiki/Dynamic_typing" class="mw-redirect" title="Dynamic typing">dynamic</a></td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Scope_(computer_science)" title="Scope (computer science)">Scope</a></th><td class="infobox-data">dynamic</td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Computing_platform" title="Computing platform">Platform</a></th><td class="infobox-data"><a href="/wiki/IA-32" title="IA-32">IA-32</a></td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Operating_system" title="Operating system">OS</a></th><td class="infobox-data"><a href="/wiki/Linux" title="Linux">Linux</a></td></tr><tr><th colspan="2" class="infobox-header" style="background-color: #eee;"><a href="/wiki/Programming_language#Dialects,_flavors_and_implementations" title="Programming language">Dialects</a></th></tr><tr><td colspan="2" class="infobox-full-data">Vital-LISP, Visual LISP</td></tr><tr><th colspan="2" class="infobox-header" style="background-color: #eee;">Influenced by</th></tr><tr><td colspan="2" class="infobox-full-data"><a href="/wiki/Lisp_(programming_language)" title="Lisp (programming language)">Lisp</a>, XLISP</td></tr></tbody></table> <p><b>AutoLISP</b> is a <a href="/wiki/Dialect_(computing)" class="mw-redirect" title="Dialect (computing)">dialect</a> of the programming language <a href="/wiki/Lisp_(programming_language)" title="Lisp (programming language)">Lisp</a> built specifically for use with the full version of <a href="/wiki/AutoCAD" title="AutoCAD">AutoCAD</a> and its derivatives, which include <i><a href="/wiki/AutoCAD_Civil_3D" class="mw-redirect" title="AutoCAD Civil 3D">AutoCAD Civil 3D</a></i>, <i><a href="/wiki/AutoCAD_Map_3D" class="mw-redirect" title="AutoCAD Map 3D">AutoCAD Map 3D</a></i>, <i><a href="/wiki/AutoCAD_Architecture" title="AutoCAD Architecture">AutoCAD Architecture</a></i> and <i><a href="/wiki/AutoCAD_Mechanical" class="mw-redirect" title="AutoCAD Mechanical">AutoCAD Mechanical</a></i>.<sup id="cite_ref-caddsoft_1-0" class="reference"><a href="#cite_note-caddsoft-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Neither the <a href="/wiki/Application_programming_interface" class="mw-redirect" title="Application programming interface">application programming interface</a> (API) nor the <a href="/wiki/Interpreter_(computing)" title="Interpreter (computing)">interpreter</a> to execute AutoLISP code is included in the AutoCAD LT product line (up to Release 2023, AutoCAD LT 2024 includes AutoLISP).<sup id="cite_ref-lt_2-0" class="reference"><a href="#cite_note-lt-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> A subset of AutoLISP functions is included in the browser-based AutoCAD web app. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Features">Features</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=AutoLISP&action=edit&section=1" title="Edit section: Features"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>AutoLISP is a small, dynamically <a href="/wiki/Scope_(computer_science)" title="Scope (computer science)">scoped</a>, dynamically typed Lisp language dialect with <a href="/wiki/Garbage_collection_(computer_science)" title="Garbage collection (computer science)">garbage collection</a>, immutable list structure, and settable symbols, lacking in such regular Lisp features as <a href="/wiki/Macro_(computer_science)" title="Macro (computer science)">macro</a> system, records definition facilities, arrays, functions with variable number of arguments or let bindings. Aside from the core language, most of the primitive functions are for geometry, accessing AutoCAD's internal <a href="/wiki/.dwg" title=".dwg">DWG</a> database, or manipulation of graphical entities in AutoCAD. The properties of these graphical entities are revealed to AutoLISP as <a href="/wiki/Association_list" title="Association list">association lists</a> in which values are paired with AutoCAD <i>group codes</i> that indicate properties such as definitional points, radii, colors, layers, linetypes, etc. AutoCAD loads AutoLISP code from .LSP files.<sup id="cite_ref-documentation_3-0" class="reference"><a href="#cite_note-documentation-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p><p>AutoLISP code can interact with the user through AutoCAD's graphical editor by use of primitive functions that allow the user to pick points, choose objects on screen, and input numbers and other data. AutoLisp also has a built-in <a href="/wiki/Graphical_user_interface" title="Graphical user interface">graphical user interface</a> (GUI) mini- or <a href="/wiki/Domain-specific_language" title="Domain-specific language">domain-specific language</a> (DSL), the <a href="/wiki/Dialog_Control_Language" title="Dialog Control Language">Dialog Control Language</a>, for creating modal dialog boxes with automated layout, within AutoCAD.<sup id="cite_ref-documentation_3-1" class="reference"><a href="#cite_note-documentation-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="History">History</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=AutoLISP&action=edit&section=2" title="Edit section: History"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>AutoLISP was derived from an early version of <a href="/wiki/XLISP" title="XLISP">XLISP</a>, which was created by David Betz.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> The language was introduced in AutoCAD Version 2.18 in January 1986, and continued to be enhanced in successive releases up to release 13 in February 1995. After that, its development was neglected by <a href="/wiki/Autodesk" title="Autodesk">Autodesk</a> in favor of more fashionable development environments like <a href="/wiki/Visual_Basic_for_Applications" title="Visual Basic for Applications">Visual Basic for Applications</a> (VBA), <a href="/wiki/.NET_Framework" title=".NET Framework">.NET Framework</a>, and <a href="/wiki/ObjectARX" title="ObjectARX">ObjectARX</a>. However, it has remained AutoCAD's main user customizing language. </p><p><i>Vital-LISP</i>, a considerably enhanced version of AutoLISP including an <a href="/wiki/Integrated_development_environment" title="Integrated development environment">integrated development environment</a> (IDE), <a href="/wiki/Debugger" title="Debugger">debugger</a>, <a href="/wiki/Compiler" title="Compiler">compiler</a>, and <a href="/wiki/ActiveX" title="ActiveX">ActiveX</a> support, was developed and sold by third-party developer Basis Software. Vital LISP was a superset of the existing AutoLISP language that added VBA-like access to the AutoCAD object model, reactors (event handling for AutoCAD objects), general ActiveX support, and some other general Lisp functions. Autodesk purchased this, renamed it <i>Visual LISP</i>, and briefly sold it as an add-on to AutoCAD release 14 released in May 1997. It was incorporated into AutoCAD 2000 released in March 1999, as a replacement for AutoLISP. Since then, <a href="/wiki/Autodesk" title="Autodesk">Autodesk</a> has ceased major enhancements to Visual LISP and focused more effort on VBA and <a href="/wiki/.NET" title=".NET">.NET</a>, and <a href="/wiki/C%2B%2B" title="C++">C++</a>. As of January 31, 2014<sup class="plainlinks noexcerpt noprint asof-tag update" style="display:none;"><a class="external text" href="https://en.wikipedia.org/w/index.php?title=AutoLISP&action=edit">[update]</a></sup>, Autodesk ended support for VBA versions before 7.1, as part of a long-term process of changing from VBA to .NET for user customizing.<sup id="cite_ref-vba_5-0" class="reference"><a href="#cite_note-vba-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-vbasupport_6-0" class="reference"><a href="#cite_note-vbasupport-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </p><p>AutoLISP has such a strong following that other <a href="/wiki/Computer-aided_design" title="Computer-aided design">computer-aided design</a> (CAD) application vendors add it to their products. <a href="/wiki/Bricscad" class="mw-redirect" title="Bricscad">Bricscad</a>, <a href="/wiki/IntelliCAD" title="IntelliCAD">IntelliCAD</a>, DraftSight and others have AutoLISP functionality, so that AutoLISP users can consider using them as an alternative to AutoCAD. Most development involving AutoLISP since AutoCAD 2000 is performed within Visual LISP since the original AutoLISP engine was replaced with the Visual LISP engine. There are thousands of utilities and applications that have been developed using AutoLISP or Visual LISP (distributed as LSP, FAS and VLX files).<sup id="cite_ref-bricscad_7-0" class="reference"><a href="#cite_note-bricscad-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-IntelliCAD_8-0" class="reference"><a href="#cite_note-IntelliCAD-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p> <table class="toccolours" style="font-size:88%"> <caption style="font-size:112%"><style data-mw-deduplicate="TemplateStyles:r1045256916">.mw-parser-output .navbar-header{text-align:center;position:relative;white-space:nowrap}.mw-parser-output .navbar-header .navbar{position:absolute;right:0;top:0;margin:0 5px}</style><div class="navbar-header">Timeline of Lisp dialects<style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul ol,.mw-parser-output .hlist ul ul{display:inline}.mw-parser-output .hlist .mw-empty-li{display:none}.mw-parser-output .hlist dt::after{content:": "}.mw-parser-output .hlist dd::after,.mw-parser-output .hlist li::after{content:" · ";font-weight:bold}.mw-parser-output .hlist dd:last-child::after,.mw-parser-output .hlist dt:last-child::after,.mw-parser-output .hlist li:last-child::after{content:none}.mw-parser-output .hlist dd dd:first-child::before,.mw-parser-output .hlist dd dt:first-child::before,.mw-parser-output .hlist dd li:first-child::before,.mw-parser-output .hlist dt dd:first-child::before,.mw-parser-output .hlist dt dt:first-child::before,.mw-parser-output .hlist dt li:first-child::before,.mw-parser-output .hlist li dd:first-child::before,.mw-parser-output .hlist li dt:first-child::before,.mw-parser-output .hlist li li:first-child::before{content:" (";font-weight:normal}.mw-parser-output .hlist dd dd:last-child::after,.mw-parser-output .hlist dd dt:last-child::after,.mw-parser-output .hlist dd li:last-child::after,.mw-parser-output .hlist dt dd:last-child::after,.mw-parser-output .hlist dt dt:last-child::after,.mw-parser-output .hlist dt li:last-child::after,.mw-parser-output .hlist li dd:last-child::after,.mw-parser-output .hlist li dt:last-child::after,.mw-parser-output .hlist li li:last-child::after{content:")";font-weight:normal}.mw-parser-output .hlist ol{counter-reset:listitem}.mw-parser-output .hlist ol>li{counter-increment:listitem}.mw-parser-output .hlist ol>li::before{content:" "counter(listitem)"\a0 "}.mw-parser-output .hlist dd ol>li:first-child::before,.mw-parser-output .hlist dt ol>li:first-child::before,.mw-parser-output .hlist li ol>li:first-child::before{content:" ("counter(listitem)"\a0 "}</style><style data-mw-deduplicate="TemplateStyles:r1239400231">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:114%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:114%;margin:0 4em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Lisp" title="Template:Lisp"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Lisp" title="Template talk:Lisp"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Lisp" title="Special:EditPage/Template:Lisp"><abbr title="Edit this template">e</abbr></a></li></ul></div></div> </caption> <tbody><tr style="background:lavender;"> <th width="7%">1958 </th> <th width="7%">1960 </th> <th width="7%">1965 </th> <th width="7%">1970 </th> <th width="7%">1975 </th> <th width="7%">1980 </th> <th width="7%">1985 </th> <th width="7%">1990 </th> <th width="7%">1995 </th> <th width="7%">2000 </th> <th width="7%">2005 </th> <th width="7%">2010 </th> <th width="8%">2015 </th> <th width="8%">2020 </th></tr> <tr> <th align="left" colspan="3" style="background:lightgray"> LISP 1, 1.5, <a href="/wiki/LISP_2" title="LISP 2">LISP 2<sup>(abandoned)</sup></a> </th> <td colspan="10"> </td></tr> <tr> <td colspan="2"> </td> <th align="left" colspan="5" style="background:lightgray"> <a href="/wiki/Maclisp" title="Maclisp">Maclisp</a> </th> <td colspan="6"> </td></tr> <tr> <td colspan="3"> </td> <th align="left" colspan="5" style="background:lightgray"> <a href="/wiki/Interlisp" title="Interlisp">Interlisp</a> </th> <td colspan="5"> </td></tr> <tr> <td colspan="3"> </td> <th align="left" colspan="2" style="background:lightgray"> <a href="/wiki/MDL_(programming_language)" title="MDL (programming language)">MDL</a> </th> <td colspan="5"> </td></tr> <tr> <td colspan="4"> </td> <th align="left" colspan="5" style="background:lightgray"> <a href="/wiki/Lisp_Machine_Lisp" title="Lisp Machine Lisp">Lisp Machine Lisp</a> </th> <td colspan="4"> </td></tr> <tr> <td colspan="4"> </td> <th align="left" colspan="4" style="background:lightgray"> <a href="/wiki/Scheme_(programming_language)" title="Scheme (programming language)">Scheme</a> </th> <th align="left" colspan="2" style="background:lightgray"> R5RS </th> <th align="left" colspan="1" style="background:lightgray"> R6RS </th> <th align="left" colspan="3" style="background:lightgray"> R7RS small </th></tr> <tr> <td colspan="4"> </td> <th align="left" colspan="2" style="background:lightgray"> <a href="/wiki/NIL_(programming_language)" title="NIL (programming language)">NIL</a> </th></tr> <tr> <td colspan="5"> </td> <th align="left" colspan="2" style="background:lightgray"> <a href="/wiki/Z-machine#ZIL_(Zork_Implementation_Language)" title="Z-machine">ZIL (Zork Implementation Language)</a> </th></tr> <tr> <td colspan="5"> </td> <th align="left" colspan="2" style="background:lightgray"> <a href="/wiki/Franz_Lisp" title="Franz Lisp">Franz Lisp</a> </th></tr> <tr> <td colspan="5"> </td> <th align="left" colspan="2" style="background:lightgray"> <a href="/wiki/Common_Lisp" title="Common Lisp">Common Lisp</a> </th> <th align="left" colspan="7" style="background:lightgray"> ANSI standard </th></tr> <tr> <td colspan="5"> </td> <th align="left" colspan="9" style="background:lightgray"> <a href="/wiki/Le_Lisp" title="Le Lisp">Le Lisp</a> </th></tr> <tr> <td colspan="5"> </td> <th align="left" colspan="11" style="background:lightgray"> <a href="/wiki/MIT_Scheme" class="mw-redirect" title="MIT Scheme">MIT Scheme</a> </th></tr> <tr> <td colspan="5"> </td> <th align="left" colspan="4" style="background:lightgray"> <a href="/wiki/XLISP" title="XLISP">XLISP</a> </th></tr> <tr> <td colspan="6"> </td> <th align="left" colspan="3" style="background:lightgray"> <a href="/wiki/T_(programming_language)" title="T (programming language)">T</a> </th> <td colspan="4"> </td></tr> <tr> <td colspan="6"> </td> <th align="left" colspan="8" style="background:lightgray"> <a href="/wiki/Chez_Scheme" title="Chez Scheme">Chez Scheme</a> </th></tr> <tr> <td colspan="6"> </td> <th align="left" colspan="8" style="background:lightgray"> <a href="/wiki/Emacs_Lisp" title="Emacs Lisp">Emacs Lisp</a> </th></tr> <tr> <td colspan="6"> </td> <th align="left" colspan="8" style="background:lightgray"> <a class="mw-selflink selflink">AutoLISP</a> </th></tr> <tr> <td colspan="6"> </td> <th align="left" colspan="8" style="background:lightgray"> <a href="/wiki/PicoLisp" title="PicoLisp">PicoLisp</a> </th></tr> <tr> <td colspan="6"> </td> <th align="left" colspan="8" style="background:lightgray"> <a href="/wiki/Gambit_(Scheme_implementation)" title="Gambit (Scheme implementation)">Gambit</a> </th></tr> <tr> <td colspan="7"> </td> <th align="left" colspan="6" style="background:lightgray"> <a href="/wiki/EuLisp" title="EuLisp">EuLisp</a> </th></tr> <tr> <td colspan="7"> </td> <th align="left" colspan="8" style="background:lightgray"> <a href="/wiki/ISLISP" title="ISLISP">ISLISP</a> </th></tr> <tr> <td colspan="7"> </td> <th align="left" colspan="8" style="background:lightgray"> <a href="/wiki/OpenLisp" title="OpenLisp">OpenLisp</a> </th></tr> <tr> <td colspan="7"> </td> <th align="left" colspan="4" style="background:lightgray"> <a href="/wiki/PLT_Scheme" class="mw-redirect" title="PLT Scheme">PLT Scheme</a> </th> <th align="left" colspan="3" style="background:lightgray"> <a href="/wiki/Racket_(programming_language)" title="Racket (programming language)">Racket</a> </th></tr> <tr> <td colspan="7"> </td> <th align="left" colspan="7" style="background:lightgray"> <a href="/wiki/NewLISP" title="NewLISP">newLISP</a> </th></tr> <tr> <td colspan="7"> </td> <th align="left" colspan="7" style="background:lightgray"> <a href="/wiki/GNU_Guile" title="GNU Guile">GNU Guile</a> </th></tr> <tr> <td colspan="9"> </td> <th align="left" colspan="5" style="background:lightgray"> <a class="mw-selflink selflink">Visual LISP</a> </th></tr> <tr> <td colspan="10"> </td> <th align="left" colspan="4" style="background:lightgray"> <a href="/wiki/Clojure" title="Clojure">Clojure</a> </th></tr> <tr> <td colspan="10"> </td> <th align="left" colspan="4" style="background:lightgray"> <a href="/wiki/Arc_(programming_language)" title="Arc (programming language)">Arc</a> </th></tr> <tr> <td colspan="10"> </td> <th align="left" colspan="4" style="background:lightgray"> <a href="/wiki/LFE_(programming_language)" title="LFE (programming language)">LFE</a> </th></tr> <tr> <td colspan="11"> </td> <th align="left" colspan="3" style="background:lightgray"> <a href="/wiki/Hy_(programming_language)" title="Hy (programming language)">Hy</a> </th></tr> </tbody></table> <div class="mw-heading mw-heading2"><h2 id="Examples">Examples</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=AutoLISP&action=edit&section=3" title="Edit section: Examples"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>A simple <a href="/wiki/Hello_world_program" class="mw-redirect" title="Hello world program">Hello world program</a> in AutoLISP would be: </p> <div class="mw-highlight mw-highlight-lang-lisp mw-content-ltr mw-highlight-lines" dir="ltr"><pre><span></span><span class="linenos" data-line="1"></span><span class="p">(</span><span class="nb">defun</span><span class="w"> </span><span class="nv">hello</span><span class="w"> </span><span class="p">(</span><span class="w"> </span><span class="p">)</span> <span class="linenos" data-line="2"></span><span class="w"> </span><span class="p">(</span><span class="nb">princ</span><span class="w"> </span><span class="s">"\nHello World!"</span><span class="p">)</span> <span class="linenos" data-line="3"></span><span class="w"> </span><span class="p">(</span><span class="nb">princ</span><span class="p">)</span> <span class="linenos" data-line="4"></span><span class="p">)</span> </pre></div> <p>Note the final line inside the function definition: when evaluated with no arguments, the <code>princ</code> function returns a null symbol, which is not displayed by the AutoCAD <a href="/wiki/Command-line_interface" title="Command-line interface">command-line interface</a>. As the AutoCAD command line functions as a <a href="/wiki/Read%E2%80%93eval%E2%80%93print_loop" title="Read–eval–print loop">read–eval–print loop</a> (REPL), this would normally print "Hello World!" to the command line, followed immediately by the return value of the call to <code>princ</code>. Therefore, without the final call to the <code>princ</code> function, the result of this would be: </p> <dl><dd><code>Hello World!"\nHello World!"</code></dd></dl> <p>The <code>prin1</code> function may also be used to achieve the same result. </p><p>A more complex example is: </p> <div class="mw-highlight mw-highlight-lang-lisp mw-content-ltr mw-highlight-lines" dir="ltr"><pre><span></span><span class="linenos" data-line="1"></span><span class="p">(</span><span class="nb">defun</span><span class="w"> </span><span class="nv">c:pointlabel</span><span class="w"> </span><span class="p">(</span><span class="w"> </span><span class="nb">/</span><span class="w"> </span><span class="nv">pnt</span><span class="w"> </span><span class="p">)</span> <span class="linenos" data-line="2"></span><span class="w"> </span><span class="p">(</span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="k">setq</span><span class="w"> </span><span class="nv">pnt</span><span class="w"> </span><span class="p">(</span><span class="nv">getpoint</span><span class="w"> </span><span class="s">"\nSpecify point: "</span><span class="p">))</span> <span class="linenos" data-line="3"></span><span class="w"> </span><span class="p">(</span><span class="k">progn</span> <span class="linenos" data-line="4"></span><span class="w"> </span><span class="p">(</span><span class="nv">entmake</span> <span class="linenos" data-line="5"></span><span class="w"> </span><span class="p">(</span><span class="nb">list</span> <span class="linenos" data-line="6"></span><span class="w"> </span><span class="o">'</span><span class="p">(</span><span class="mi">0</span><span class="w"> </span><span class="o">.</span><span class="w"> </span><span class="s">"POINT"</span><span class="p">)</span> <span class="linenos" data-line="7"></span><span class="w"> </span><span class="p">(</span><span class="nb">cons</span><span class="w"> </span><span class="mi">10</span><span class="w"> </span><span class="p">(</span><span class="nv">trans</span><span class="w"> </span><span class="nv">pnt</span><span class="w"> </span><span class="mi">1</span><span class="w"> </span><span class="mi">0</span><span class="p">))</span> <span class="linenos" data-line="8"></span><span class="w"> </span><span class="p">)</span> <span class="linenos" data-line="9"></span><span class="w"> </span><span class="p">)</span> <span class="linenos" data-line="10"></span><span class="w"> </span><span class="p">(</span><span class="nv">entmake</span> <span class="linenos" data-line="11"></span><span class="w"> </span><span class="p">(</span><span class="nb">list</span> <span class="linenos" data-line="12"></span><span class="w"> </span><span class="o">'</span><span class="p">(</span><span class="mi">0</span><span class="w"> </span><span class="o">.</span><span class="w"> </span><span class="s">"TEXT"</span><span class="p">)</span> <span class="linenos" data-line="13"></span><span class="w"> </span><span class="p">(</span><span class="nb">cons</span><span class="w"> </span><span class="mi">10</span><span class="w"> </span><span class="p">(</span><span class="nv">trans</span><span class="w"> </span><span class="p">(</span><span class="nb">cons</span><span class="w"> </span><span class="p">(</span><span class="nb">+</span><span class="w"> </span><span class="p">(</span><span class="nb">car</span><span class="w"> </span><span class="nv">pnt</span><span class="p">)</span><span class="w"> </span><span class="mf">0.6</span><span class="p">)</span><span class="w"> </span><span class="p">(</span><span class="nb">cdr</span><span class="w"> </span><span class="nv">pnt</span><span class="p">))</span><span class="w"> </span><span class="mi">1</span><span class="w"> </span><span class="mi">0</span><span class="p">))</span> <span class="linenos" data-line="14"></span><span class="w"> </span><span class="p">(</span><span class="nb">cons</span><span class="w"> </span><span class="mi">40</span><span class="w"> </span><span class="p">(</span><span class="nv">getvar</span><span class="w"> </span><span class="ss">'textsize</span><span class="p">))</span> <span class="linenos" data-line="15"></span><span class="w"> </span><span class="p">(</span><span class="nb">cons</span><span class="w"> </span><span class="mi">1</span><span class="w"> </span><span class="p">(</span><span class="nv">strcat</span><span class="w"> </span><span class="s">"X:"</span><span class="w"> </span><span class="p">(</span><span class="nv">rtos</span><span class="w"> </span><span class="p">(</span><span class="nb">car</span><span class="w"> </span><span class="nv">pnt</span><span class="p">))</span><span class="w"> </span><span class="s">" Y:"</span><span class="w"> </span><span class="p">(</span><span class="nv">rtos</span><span class="w"> </span><span class="p">(</span><span class="nb">cadr</span><span class="w"> </span><span class="nv">pnt</span><span class="p">))))</span> <span class="linenos" data-line="16"></span><span class="w"> </span><span class="p">)</span> <span class="linenos" data-line="17"></span><span class="w"> </span><span class="p">)</span> <span class="linenos" data-line="18"></span><span class="w"> </span><span class="p">)</span> <span class="linenos" data-line="19"></span><span class="w"> </span><span class="p">)</span> <span class="linenos" data-line="20"></span><span class="w"> </span><span class="p">(</span><span class="nb">princ</span><span class="p">)</span> <span class="linenos" data-line="21"></span><span class="p">)</span> </pre></div> <p>The above code defines a new <a href="/wiki/Subroutine" class="mw-redirect" title="Subroutine">function</a> which generates an AutoCAD point object at a given point, with a one-line text object displaying the X and Y coordinates beside it. The name of the function includes a special prefix 'c:', which causes AutoCAD to recognize the function as a regular command. The user, upon typing 'pointlabel' at the AutoCAD command line, would be prompted to pick a point, either by typing the X and Y coordinates, or clicking a location in the drawing. The function would then place a marker at that point, and create a one-line text object next to it, containing the X and Y coordinates of the point expressed relative to the active User Coordinate System (UCS). The function requires no <a href="/wiki/Parameter_(computer_programming)" title="Parameter (computer programming)">parameters</a>, and contains one <a href="/wiki/Local_variable" title="Local variable">local variable</a> ('pnt'). </p><p>The above example could also be written using built-in AutoCAD commands to achieve the same result, however this approach is susceptible to changes to the command prompts between AutoCAD releases. </p> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=AutoLISP&action=edit&section=4" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-caddsoft-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-caddsoft_1-0">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.caddsoftsolutions.com/AutoLISP.htm">"AutoLISP"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">14 April</span> 2014</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=AutoLISP&rft_id=http%3A%2F%2Fwww.caddsoftsolutions.com%2FAutoLISP.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAutoLISP" class="Z3988"></span></span> </li> <li id="cite_note-lt-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-lt_2-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20140415063148/http://www.autodesk.com/products/autodesk-autocad-lt/compare/compare-products">"AutoCAD LT vs. AutoCAD"</a>. Archived from <a rel="nofollow" class="external text" href="http://www.autodesk.com/products/autodesk-autocad-lt/compare/compare-products">the original</a> on 15 April 2014<span class="reference-accessdate">. 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class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Lisp_programming_language" title="Template:Lisp programming language"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Lisp_programming_language" title="Template talk:Lisp programming language"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Lisp_programming_language" title="Special:EditPage/Template:Lisp programming language"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Lisp_programming880" style="font-size:114%;margin:0 4em"><a href="/wiki/Lisp_(programming_language)" title="Lisp (programming language)">Lisp programming</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Features</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Garbage_collection_(computer_science)" title="Garbage collection (computer science)">Automatic storage management</a></li> <li><a href="/wiki/Conditional_(computer_programming)" title="Conditional (computer programming)">Conditionals</a></li> <li><a href="/wiki/Dynamic_typing" class="mw-redirect" title="Dynamic typing">Dynamic typing</a></li> <li><a href="/wiki/Higher-order_function" title="Higher-order function">Higher-order functions</a></li> <li><a href="/wiki/Linked_list" title="Linked list">Linked lists</a></li> <li><a href="/wiki/Macro_(computer_science)" title="Macro (computer science)">Macros</a></li> <li><a href="/wiki/M-expression" title="M-expression">M-expressions</a> (deprecated)</li> <li><a href="/wiki/Read%E2%80%93eval%E2%80%93print_loop" title="Read–eval–print loop">Read–eval–print loop</a></li> <li><a href="/wiki/Recursion_(computer_science)" title="Recursion (computer science)">Recursion</a></li> <li><a href="/wiki/S-expression" title="S-expression">S-expressions</a></li> <li><a href="/wiki/Self-hosting_(compilers)" title="Self-hosting (compilers)">Self-hosting</a> <a href="/wiki/Compiler" title="Compiler">compiler</a></li> <li><a href="/wiki/Tree_data_structure" class="mw-redirect" title="Tree data structure">Tree data structures</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Object-oriented_programming" title="Object-oriented programming">Object</a> systems</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Common_Lisp_Object_System" title="Common Lisp Object System">Common Lisp Object System</a> (CLOS)</li> <li><a href="/wiki/CommonLoops" title="CommonLoops">CommonLoops</a></li> <li><a href="/wiki/Flavors_(programming_language)" title="Flavors (programming language)">Flavors</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Programming_language_implementation" title="Programming language implementation">Implementations</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Technical_standard" title="Technical standard">Standardized</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Common_Lisp" title="Common Lisp">Common<br />Lisp</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Allegro_Common_Lisp" title="Allegro Common Lisp">Allegro Common Lisp</a></li> <li><a href="/wiki/Armed_Bear_Common_Lisp" class="mw-redirect" title="Armed Bear Common Lisp">Armed Bear Common Lisp</a> (ABCL)</li> <li><a href="/wiki/CLISP" title="CLISP">CLISP</a></li> <li><a href="/wiki/Clozure_CL" title="Clozure CL">Clozure CL</a></li> <li><a href="/wiki/CMU_Common_Lisp" title="CMU Common Lisp">CMU Common Lisp</a> (CMUCL)</li> <li><a href="/wiki/Corman_Common_Lisp" class="mw-redirect" title="Corman Common Lisp">Corman Common Lisp</a></li> <li><a href="/wiki/Embeddable_Common_Lisp" title="Embeddable Common Lisp">Embeddable Common Lisp</a> (ECL)</li> <li><a href="/wiki/GNU_Common_Lisp" title="GNU Common Lisp">GNU Common Lisp</a> (GCL)</li> <li><a href="/wiki/LispWorks" title="LispWorks">LispWorks</a></li> <li><a href="/wiki/Macintosh_Common_Lisp" title="Macintosh Common Lisp">Macintosh Common Lisp</a></li> <li><a href="/wiki/Mocl" title="Mocl">Mocl</a></li> <li>Movitz</li> <li><a href="/wiki/Poplog" title="Poplog">Poplog</a></li> <li><a href="/wiki/Steel_Bank_Common_Lisp" title="Steel Bank Common Lisp">Steel Bank Common Lisp</a> (SBCL)</li> <li><a href="/wiki/Genera_(operating_system)" title="Genera (operating system)">Symbolics Common Lisp</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Scheme_(programming_language)" title="Scheme (programming language)">Scheme</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/History_of_the_Scheme_programming_language" title="History of the Scheme programming language">History</a></i></li> <li><a href="/wiki/Bigloo" title="Bigloo">Bigloo</a></li> <li><a href="/wiki/Chez_Scheme" title="Chez Scheme">Chez Scheme</a></li> <li><a href="/wiki/Chicken_(Scheme_implementation)" title="Chicken (Scheme implementation)">Chicken</a></li> <li><a href="/wiki/Gambit_(scheme_implementation)" class="mw-redirect" title="Gambit (scheme implementation)">Gambit</a></li> <li><a href="/wiki/Game_Oriented_Assembly_Lisp" title="Game Oriented Assembly Lisp">Game Oriented Assembly Lisp</a> (GOAL)</li> <li><a href="/wiki/GNU_Guile" title="GNU Guile">GNU Guile</a></li> <li><a href="/wiki/Ikarus_(Scheme_implementation)" title="Ikarus (Scheme implementation)">Ikarus</a></li> <li><a href="/wiki/JScheme" title="JScheme">JScheme</a></li> <li><a href="/wiki/Kawa_(Scheme_implementation)" title="Kawa (Scheme implementation)">Kawa</a></li> <li><a href="/wiki/MIT/GNU_Scheme" title="MIT/GNU Scheme">MIT/GNU Scheme</a></li> <li><a href="/wiki/MultiLisp" title="MultiLisp">MultiLisp</a></li> <li><a href="/wiki/Pico_(programming_language)" title="Pico (programming language)">Pico</a></li> <li>Pocket Scheme</li> <li><a href="/wiki/Racket_(programming_language)" title="Racket (programming language)">Racket</a> (<a href="/wiki/Racket_features" title="Racket features">features</a>)</li> <li><a href="/wiki/Scheme_48" title="Scheme 48">Scheme 48</a></li> <li><a href="/wiki/SCM_(Scheme_implementation)" title="SCM (Scheme implementation)">SCM</a></li> <li><a href="/wiki/SIOD" title="SIOD">SIOD</a></li> <li><a href="/wiki/T_(programming_language)" title="T (programming language)">T</a></li> <li><a href="/wiki/TinyScheme" title="TinyScheme">TinyScheme</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/ISLISP" title="ISLISP">ISLISP</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/OpenLisp" title="OpenLisp">OpenLisp</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Unstandardized</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Logo_(programming_language)" title="Logo (programming language)">Logo</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/MSWLogo" title="MSWLogo">MSWLogo</a></li> <li><a href="/wiki/NetLogo" title="NetLogo">NetLogo</a></li> <li><a href="/wiki/StarLogo" title="StarLogo">StarLogo</a></li> <li><a href="/wiki/UCBLogo" title="UCBLogo">UCBLogo</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/POP-11" title="POP-11">POP</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/COWSEL" title="COWSEL">COWSEL</a> (POP-1)</li> <li><a href="/wiki/POP-2" title="POP-2">POP-2</a></li> <li><a href="/wiki/POP-11" title="POP-11">POP-11</a></li></ul> </div></td></tr></tbody></table><div> <ul><li><a href="/wiki/Arc_(programming_language)" title="Arc (programming language)">Arc</a></li> <li><a class="mw-selflink selflink">AutoLISP</a></li> <li><a href="/wiki/BBN_LISP" title="BBN LISP">BBN LISP</a></li> <li><a href="/wiki/Clojure" title="Clojure">Clojure</a></li> <li><a href="/wiki/Dylan_(programming_language)" title="Dylan (programming language)">Dylan</a> (<a href="/wiki/Apple_Dylan" title="Apple Dylan">Apple</a>, <i><a href="/wiki/History_of_the_Dylan_programming_language" title="History of the Dylan programming language">history</a></i>)</li> <li><a href="/wiki/Emacs_Lisp" title="Emacs Lisp">Emacs Lisp</a></li> <li><a href="/wiki/EuLisp" title="EuLisp">EuLisp</a></li> <li><a href="/wiki/Franz_Lisp" title="Franz Lisp">Franz Lisp</a>, <a href="/wiki/PC-LISP" title="PC-LISP">PC-LISP</a></li> <li><a href="/wiki/Hy_(programming_language)" title="Hy (programming language)">Hy</a></li> <li><a href="/wiki/Interlisp" title="Interlisp">Interlisp</a></li> <li><a href="/wiki/Knowledge_Engineering_Environment" title="Knowledge Engineering Environment">Knowledge Engineering Environment</a></li> <li><a href="/wiki/*Lisp" title="*Lisp">*Lisp</a></li> <li><a href="/wiki/LeLisp" class="mw-redirect" title="LeLisp">LeLisp</a></li> <li><a href="/wiki/LFE_(programming_language)" title="LFE (programming language)">LFE</a></li> <li><a href="/wiki/Lisp_Machine_Lisp" title="Lisp Machine Lisp">Lisp Machine Lisp</a></li> <li><a href="/wiki/Lispkit_Lisp" title="Lispkit Lisp">Lispkit Lisp</a></li> <li><a href="/wiki/Maclisp" title="Maclisp">Maclisp</a></li> <li><a href="/wiki/MDL_(programming_language)" title="MDL (programming language)">MDL</a></li> <li><a href="/wiki/MLisp" title="MLisp">MLisp</a></li> <li><a href="/wiki/NewLISP" title="NewLISP">newLISP</a></li> <li><a href="/wiki/NIL_(programming_language)" title="NIL (programming language)">NIL</a></li> <li><a href="/wiki/PC-LISP" title="PC-LISP">PC-LISP</a></li> <li><a href="/wiki/Picolisp" class="mw-redirect" title="Picolisp">Picolisp</a></li> <li><a href="/wiki/Portable_Standard_Lisp" title="Portable Standard Lisp">Portable Standard Lisp</a></li> <li><a href="/wiki/RPL_(programming_language)" title="RPL (programming language)">RPL</a></li> <li><a href="/wiki/S-1_Lisp" title="S-1 Lisp">S-1 Lisp</a></li> <li><a href="/wiki/Cadence_SKILL" title="Cadence SKILL">SKILL</a></li> <li><a href="/wiki/Spice_Lisp" title="Spice Lisp">Spice Lisp</a></li> <li><a href="/wiki/Zetalisp" class="mw-redirect" title="Zetalisp">Zetalisp</a></li></ul></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Operating_system" title="Operating system">Operating system</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <li><b><a href="/wiki/Lisp_(programming_language)#Operating_systems" title="Lisp (programming language)">List</a></b></li> <li><a href="/wiki/Common_Lisp_Interface_Manager" title="Common Lisp Interface Manager">Common Lisp Interface Manager</a>, <a href="/wiki/McCLIM" title="McCLIM">McCLIM</a></li> <li><a href="/wiki/Genera_(operating_system)" title="Genera (operating system)">Genera</a></li> <li><a href="/wiki/Scsh" title="Scsh">Scsh</a></li> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Computer_hardware" title="Computer hardware">Hardware</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lisp_machine" title="Lisp machine">Lisp machine</a> <ul><li><a href="/wiki/TI_Explorer" class="mw-redirect" title="TI Explorer">TI Explorer</a></li></ul></li> <li><a href="/wiki/Space-cadet_keyboard" title="Space-cadet keyboard">Space-cadet keyboard</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Community_of_practice" title="Community of practice">Community<br />of practice</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Technical standards</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Scheme_Requests_for_Implementation" title="Scheme Requests for Implementation">Scheme Requests for Implementation</a></li> <li><a href="/wiki/Common_Lisp_HyperSpec" title="Common Lisp HyperSpec">Common Lisp HyperSpec</a></li> <li><a href="/wiki/X3J13" title="X3J13">X3J13</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Education</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Books</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Common_Lisp_the_Language" title="Common Lisp the Language">Common Lisp the Language</a></li> <li><a href="/wiki/How_to_Design_Programs" title="How to Design Programs">How to Design Programs</a> (HTDP)</li> <li><a href="/wiki/On_Lisp" title="On Lisp">On Lisp</a></li> <li><a href="/wiki/Practical_Common_Lisp" title="Practical Common Lisp">Practical Common Lisp</a></li> <li><a href="/wiki/Structure_and_Interpretation_of_Computer_Programs" title="Structure and Interpretation of Computer Programs">Structure and Interpretation of Computer Programs</a> (SICP)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Curriculum</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ProgramByDesign" title="ProgramByDesign">ProgramByDesign</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Organizations</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Business</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Apple_Inc." title="Apple Inc.">Apple Computer</a></li> <li><a href="/wiki/BBN_Technologies" class="mw-redirect" title="BBN Technologies">Bolt, Beranek and Newman</a></li> <li><a href="/wiki/Harlequin_(software_company)" title="Harlequin (software company)">Harlequin</a></li> <li><a href="/wiki/Lucid_Inc." title="Lucid Inc.">Lucid Inc.</a></li> <li><a href="/wiki/Symbolics" title="Symbolics">Symbolics</a></li> <li><a href="/wiki/Xanalys" title="Xanalys">Xanalys</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Education</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Massachusetts_Institute_of_Technology" title="Massachusetts Institute of Technology">Massachusetts Institute of Technology</a> (MIT)</li> <li><a href="/wiki/MIT_Computer_Science_and_Artificial_Intelligence_Laboratory" title="MIT Computer Science and Artificial Intelligence Laboratory">MIT Computer Science and Artificial Intelligence Laboratory</a> (CSAIL)</li> <li><a href="/wiki/Stanford_University_centers_and_institutes#Stanford_Artificial_Intelligence_Laboratory" title="Stanford University centers and institutes">Stanford Artificial Intelligence Laboratory</a></li> <li><a href="/wiki/University_of_California,_Berkeley" title="University of California, Berkeley">University of California, Berkeley</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">People</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Edmund_Berkeley" title="Edmund Berkeley">Edmund Berkeley</a></li> <li><a href="/wiki/Daniel_G._Bobrow" title="Daniel G. Bobrow">Daniel G. Bobrow</a></li> <li><a href="/wiki/William_Clinger_(computer_scientist)" title="William Clinger (computer scientist)">William Clinger</a></li> <li><a href="/wiki/R._Kent_Dybvig" title="R. Kent Dybvig">R. Kent Dybvig</a></li> <li><a href="/wiki/Matthias_Felleisen" title="Matthias Felleisen">Matthias Felleisen</a></li> <li><a href="/wiki/Robert_Bruce_Findler" title="Robert Bruce Findler">Robert Bruce Findler</a></li> <li><a href="/wiki/Matthew_Flatt" title="Matthew Flatt">Matthew Flatt</a></li> <li><a href="/wiki/Phyllis_Fox" title="Phyllis Fox">Phyllis Fox</a></li> <li><a href="/wiki/Paul_Graham_(programmer)" title="Paul Graham (programmer)">Paul Graham</a></li> <li><a href="/wiki/Richard_Greenblatt_(programmer)" title="Richard Greenblatt (programmer)">Richard Greenblatt</a></li> <li>Timothy P. Hart</li> <li><a href="/wiki/Louis_Hodes" title="Louis Hodes">Louis Hodes</a></li> <li>Mike Levin</li> <li><a href="/wiki/David_Luckham" title="David Luckham">David Luckham</a></li> <li><a href="/wiki/John_McCarthy_(computer_scientist)" title="John McCarthy (computer scientist)">John McCarthy</a></li> <li><a href="/wiki/Robert_Tappan_Morris" title="Robert Tappan Morris">Robert Tappan Morris</a></li> <li><a href="/wiki/Joel_Moses" title="Joel Moses">Joel Moses</a></li> <li><a href="/wiki/David_Park_(computer_scientist)" title="David Park (computer scientist)">David Park</a></li> <li><a href="/wiki/Steve_Russell_(computer_scientist)" title="Steve Russell (computer scientist)">Steve Russell</a></li> <li><a href="/wiki/Richard_Stallman" title="Richard Stallman">Richard Stallman</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Common_Lisp" title="Common Lisp">Common Lisp</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Scott_Fahlman" title="Scott Fahlman">Scott Fahlman</a></li> <li><a href="/wiki/Richard_P._Gabriel" title="Richard P. Gabriel">Richard P. Gabriel</a></li> <li><a href="/wiki/Philip_Greenspun" title="Philip Greenspun">Philip Greenspun</a> (<a href="/wiki/Greenspun%27s_tenth_rule" title="Greenspun's tenth rule">10th rule</a>)</li> <li><a href="/wiki/David_A._Moon" title="David A. Moon">David A. Moon</a></li> <li><a href="/wiki/Kent_Pitman" title="Kent Pitman">Kent Pitman</a></li> <li><a href="/wiki/Guy_L._Steele_Jr." title="Guy L. Steele Jr.">Guy L. Steele Jr.</a></li> <li><a href="/wiki/Daniel_Weinreb" title="Daniel Weinreb">Daniel Weinreb</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Scheme_(programming_language)" title="Scheme (programming language)">Scheme</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Matthias_Felleisen" title="Matthias Felleisen">Matthias Felleisen</a></li> <li><a href="/wiki/Shriram_Krishnamurthi" title="Shriram Krishnamurthi">Shriram Krishnamurthi</a></li> <li><a href="/wiki/Guy_L._Steele_Jr." title="Guy L. Steele Jr.">Guy L. Steele Jr.</a></li> <li><a href="/wiki/Gerald_Jay_Sussman" title="Gerald Jay Sussman">Gerald Jay Sussman</a></li> <li><a href="/wiki/Julie_Sussman" class="mw-redirect" title="Julie Sussman">Julie Sussman</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Logo_(programming_language)" title="Logo (programming language)">Logo</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Hal_Abelson" title="Hal Abelson">Hal Abelson</a></li> <li><a href="/wiki/Denison_Bollay" title="Denison Bollay">Denison Bollay</a></li> <li><a href="/wiki/Wally_Feurzeig" title="Wally Feurzeig">Wally Feurzeig</a></li> <li><a href="/wiki/Brian_Harvey_(lecturer)" title="Brian Harvey (lecturer)">Brian Harvey</a></li> <li><a href="/wiki/Seymour_Papert" title="Seymour Papert">Seymour Papert</a></li> <li><a href="/wiki/Mitchel_Resnick" title="Mitchel Resnick">Mitchel Resnick</a></li> <li><a href="/wiki/Cynthia_Solomon" title="Cynthia Solomon">Cynthia Solomon</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/POP-11" title="POP-11">POP</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Rod_Burstall" title="Rod Burstall">Rod Burstall</a></li> <li><a href="/wiki/Robin_Popplestone" title="Robin Popplestone">Robin Popplestone</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div><span class="noviewer" typeof="mw:File"><span title="List-Class article"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/d/db/Symbol_list_class.svg/16px-Symbol_list_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" 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