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<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"/><title>DrRacket Plugins</title><link rel="stylesheet" type="text/css" href="../scribble.css" title="default"/><link rel="stylesheet" type="text/css" href="../racket.css" title="default"/><link rel="stylesheet" type="text/css" href="../manual-style.css" title="default"/><link rel="stylesheet" type="text/css" href="../manual-racket.css" title="default"/><link rel="stylesheet" type="text/css" href="../doc-site.css" title="default"/><script type="text/javascript" src="../scribble-common.js"></script><script type="text/javascript" src="../manual-racket.js"></script><script type="text/javascript" src="../doc-site.js"></script><script type="text/javascript" src="../local-redirect/local-redirect.js"></script><script type="text/javascript" src="../local-redirect/local-user-redirect.js"></script><!--[if IE 6]><style type="text/css">.SIEHidden { overflow: hidden; }</style><![endif]--></head><body id="doc-racket-lang-org"><div class="tocset"><div class="tocview"><div class="tocviewlist tocviewlisttopspace"><div class="tocviewtitle"><table cellspacing="0" cellpadding="0"><tr><td style="width: 1em;"><a href="javascript:void(0);" title="Expand/Collapse" class="tocviewtoggle" onclick="TocviewToggle(this,&quot;tocview_0&quot;);">&#9660;</a></td><td></td><td><a href="" class="tocviewselflink" data-pltdoc="x">Dr<span class="mywbr"> &nbsp;</span>Racket Plugins</a></td></tr></table></div><div class="tocviewsublistonly" style="display: block;" id="tocview_0"><table cellspacing="0" cellpadding="0"><tr><td align="right">1&nbsp;</td><td><a href="implementing-tools.html" class="tocviewlink" data-pltdoc="x">Implementing Dr<span class="mywbr"> &nbsp;</span>Racket Plugins</a></td></tr><tr><td align="right">2&nbsp;</td><td><a href="adding-languages.html" class="tocviewlink" data-pltdoc="x">Adding Languages to Dr<span class="mywbr"> &nbsp;</span>Racket</a></td></tr><tr><td align="right">3&nbsp;</td><td><a href="Creating_New_Kinds_of_DrRacket_Frames.html" class="tocviewlink" data-pltdoc="x">Creating New Kinds of Dr<span class="mywbr"> &nbsp;</span>Racket Frames</a></td></tr><tr><td align="right">4&nbsp;</td><td><a href="Extending_the_Existing_DrRacket_Classes.html" class="tocviewlink" data-pltdoc="x">Extending the Existing Dr<span class="mywbr"> &nbsp;</span>Racket Classes</a></td></tr><tr><td align="right">5&nbsp;</td><td><a href="Expanding_and_Breaking.html" class="tocviewlink" data-pltdoc="x">Expanding the User&rsquo;s Program Text and Breaking</a></td></tr><tr><td align="right">6&nbsp;</td><td><a href="Editor_Modes.html" class="tocviewlink" data-pltdoc="x">Editor Modes</a></td></tr><tr><td align="right">7&nbsp;</td><td><a href="Language-Specific_Capabilities.html" class="tocviewlink" data-pltdoc="x">Language-<wbr></wbr>Specific Capabilities</a></td></tr><tr><td align="right">8&nbsp;</td><td><a href="Check_Syntax.html" class="tocviewlink" data-pltdoc="x">Check Syntax</a></td></tr><tr><td align="right">9&nbsp;</td><td><a href="Cooperating_with_Background_Check_Syntax.html" class="tocviewlink" data-pltdoc="x">Cooperating with Background Check Syntax</a></td></tr><tr><td align="right">10&nbsp;</td><td><a href="Teaching_Languages.html" class="tocviewlink" data-pltdoc="x">Teaching Languages</a></td></tr><tr><td align="right">11&nbsp;</td><td><a href="Signatures.html" class="tocviewlink" data-pltdoc="x">Signatures</a></td></tr><tr><td align="right">12&nbsp;</td><td><a href="drracket_get_extend.html" class="tocviewlink" data-pltdoc="x"><span class="stt">drracket:<span class="mywbr"> &nbsp;</span>get/<span class="mywbr"> &nbsp;</span>extend</span></a></td></tr><tr><td align="right">13&nbsp;</td><td><a href="drracket_unit.html" class="tocviewlink" data-pltdoc="x"><span class="stt">drracket:<span class="mywbr"> &nbsp;</span>unit</span></a></td></tr><tr><td align="right">14&nbsp;</td><td><a href="drracket_language.html" class="tocviewlink" data-pltdoc="x"><span class="stt">drracket:<span class="mywbr"> &nbsp;</span>language</span></a></td></tr><tr><td align="right">15&nbsp;</td><td><a href="drracket_language-configuration.html" class="tocviewlink" data-pltdoc="x"><span class="stt">drracket:<span class="mywbr"> &nbsp;</span>language-<wbr></wbr>configuration</span></a></td></tr><tr><td align="right">16&nbsp;</td><td><a href="drracket_debug.html" class="tocviewlink" data-pltdoc="x"><span class="stt">drracket:<span class="mywbr"> &nbsp;</span>debug</span></a></td></tr><tr><td align="right">17&nbsp;</td><td><a href="drracket_rep.html" class="tocviewlink" data-pltdoc="x"><span class="stt">drracket:<span class="mywbr"> &nbsp;</span>rep</span></a></td></tr><tr><td align="right">18&nbsp;</td><td><a href="drracket_frame.html" class="tocviewlink" data-pltdoc="x"><span class="stt">drracket:<span class="mywbr"> &nbsp;</span>frame</span></a></td></tr><tr><td align="right">19&nbsp;</td><td><a href="drracket_help-desk.html" class="tocviewlink" data-pltdoc="x"><span class="stt">drracket:<span class="mywbr"> &nbsp;</span>help-<wbr></wbr>desk</span></a></td></tr><tr><td align="right">20&nbsp;</td><td><a href="drracket_eval.html" class="tocviewlink" data-pltdoc="x"><span class="stt">drracket:<span class="mywbr"> &nbsp;</span>eval</span></a></td></tr><tr><td align="right">21&nbsp;</td><td><a href="drracket_modes.html" class="tocviewlink" data-pltdoc="x"><span class="stt">drracket:<span class="mywbr"> &nbsp;</span>modes</span></a></td></tr><tr><td align="right">22&nbsp;</td><td><a href="drracket_module-language-tools.html" class="tocviewlink" data-pltdoc="x"><span class="stt">drracket:<span class="mywbr"> &nbsp;</span>module-<wbr></wbr>language-<wbr></wbr>tools</span></a></td></tr><tr><td align="right">23&nbsp;</td><td><a href="drracket_module-language.html" class="tocviewlink" data-pltdoc="x"><span class="stt">drracket:<span class="mywbr"> &nbsp;</span>module-<wbr></wbr>language</span></a></td></tr><tr><td align="right">24&nbsp;</td><td><a href="Backwards_Compatibility.html" class="tocviewlink" data-pltdoc="x">Backwards Compatibility</a></td></tr><tr><td align="right"></td><td><a href="doc-index.html" class="tocviewlink" data-pltdoc="x">Index</a></td></tr></table></div></div></div><div class="tocsub"><div class="tocsubtitle">On this page:</div><table class="tocsublist" cellspacing="0"><tr><td><span class="tocsublinknumber"></span><a href="#%28part._top%29" class="tocsubseclink" data-pltdoc="x">Dr<span class="mywbr"> &nbsp;</span>Racket Plugins</a></td></tr></table></div></div><div class="maincolumn"><div class="main"><div class="versionbox"><span class="version">6.1</span></div><div class="navsettop"><span class="navleft"><form class="searchform"><input class="searchbox" style="color: #888;" type="text" value="...search manuals..." title="Enter a search string to search the manuals" onkeypress="return DoSearchKey(event, this, &quot;6.1&quot;, &quot;../&quot;);" onfocus="this.style.color=&quot;black&quot;; this.style.textAlign=&quot;left&quot;; if (this.value == &quot;...search manuals...&quot;) this.value=&quot;&quot;;" onblur="if (this.value.match(/^ *$/)) { this.style.color=&quot;#888&quot;; this.style.textAlign=&quot;center&quot;; this.value=&quot;...search manuals...&quot;; }"/></form>&nbsp;&nbsp;<a href="../index.html" title="up to the documentation top" data-pltdoc="x" onclick="return GotoPLTRoot(&quot;6.1&quot;);">top</a></span><span class="navright">&nbsp;&nbsp;<span class="nonavigation">&larr; prev</span>&nbsp;&nbsp;<a href="../index.html" title="up to the documentation top" data-pltdoc="x" onclick="return GotoPLTRoot(&quot;6.1&quot;);">up</a>&nbsp;&nbsp;<a href="implementing-tools.html" title="forward to &quot;1 Implementing DrRacket Plugins&quot;" data-pltdoc="x">next &rarr;</a></span>&nbsp;</div><h2 x-source-module="(lib &quot;scribblings/tools/tools.scrbl&quot;)" x-part-tag="&quot;top&quot;"><a name="(part._top)"></a><a name="(part._.Dr.Racket_.Plugins)"></a><a name="(mod-path._drracket/tool-lib)"></a><a name="(mod-path._drracket/tool)"></a><a name="(mod-path._drscheme/tool-lib)"></a><a name="(mod-path._drscheme/tool)"></a>DrRacket Plugins</h2><div class="SAuthorListBox"><span class="SAuthorList"><p class="author">Robert Bruce Findler</p></span></div><p><table cellspacing="0" cellpadding="0" class="defmodule"><tr><td align="left"><span class="hspace">&nbsp;</span><span class="RktPn">(</span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&amp;rel=require.html%23%2528form._%2528%2528lib._racket%252Fprivate%252Fbase..rkt%2529._require%2529%2529&amp;version=6.1" class="RktStxLink Sq" data-pltdoc="x">require</a></span><span class="stt"> </span><a href="" class="RktModLink" data-pltdoc="x"><span class="RktSym">drracket/tool-lib</span></a><span class="RktPn">)</span></td><td align="right"><span class="RpackageSpec"><span class="Smaller">&nbsp;package:</span> <span class="stt">drracket</span></span></td></tr><tr><td align="left" colspan="2"><span class="hspace">&nbsp;</span><span class="RktPn">(</span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&amp;rel=require.html%23%2528form._%2528%2528lib._racket%252Fprivate%252Fbase..rkt%2529._require%2529%2529&amp;version=6.1" class="RktStxLink Sq" data-pltdoc="x">require</a></span><span class="stt"> </span><a href="" class="RktModLink" data-pltdoc="x"><span class="RktSym">drracket/tool</span></a><span class="RktPn">)</span></td></tr><tr><td align="left" colspan="2"><span class="hspace">&nbsp;</span><span class="RktPn">(</span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&amp;rel=require.html%23%2528form._%2528%2528lib._racket%252Fprivate%252Fbase..rkt%2529._require%2529%2529&amp;version=6.1" class="RktStxLink Sq" data-pltdoc="x">require</a></span><span class="stt"> </span><a href="" class="RktModLink" data-pltdoc="x"><span class="RktSym">drscheme/tool-lib</span></a><span class="RktPn">)</span></td></tr><tr><td align="left" colspan="2"><span class="hspace">&nbsp;</span><span class="RktPn">(</span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&amp;rel=require.html%23%2528form._%2528%2528lib._racket%252Fprivate%252Fbase..rkt%2529._require%2529%2529&amp;version=6.1" class="RktStxLink Sq" data-pltdoc="x">require</a></span><span class="stt"> </span><a href="" class="RktModLink" data-pltdoc="x"><span class="RktSym">drscheme/tool</span></a><span class="RktPn">)</span></td></tr></table></p><p>This manual describes DrRacket&rsquo;s plugins interface. It assumes
familiarity with
Racket, as described in the
<a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=guide&amp;rel=index.html&amp;version=6.1" class="Sq" data-pltdoc="x"><span style="font-weight: bold">The Racket Guide</span></a>,
and the
<a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&amp;rel=index.html&amp;version=6.1" class="Sq" data-pltdoc="x"><span style="font-weight: bold">The Racket Reference</span></a>,
DrRacket, as described in
<a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=drracket&amp;rel=index.html&amp;version=6.1" class="Sq" data-pltdoc="x">DrRacket: The Racket Programming Environment</a>,
and the GUI library, as described in
<a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=gui&amp;rel=index.html&amp;version=6.1" class="Sq" data-pltdoc="x">The Racket Graphical Interface Toolkit</a>.
The Framework, as described in
<a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=framework&amp;rel=index.html&amp;version=6.1" class="Sq" data-pltdoc="x">Framework: Racket GUI Application Framework</a>,
may also come in handy.</p><p>The <a href="" class="RktModLink" data-pltdoc="x"><span class="RktSym">drscheme/tool-lib</span></a> and <a href="" class="RktModLink" data-pltdoc="x"><span class="RktSym">drscheme/tool</span></a>
libraries are for backward compatibility; they exports all of the bindings of
their <span class="stt">drracket</span> counterpart.</p><table cellspacing="0" cellpadding="0"><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="implementing-tools.html" class="toptoclink" data-pltdoc="x">1<span class="hspace">&nbsp;</span>Implementing DrRacket Plugins</a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="adding-languages.html" class="toptoclink" data-pltdoc="x">2<span class="hspace">&nbsp;</span>Adding Languages to DrRacket</a></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="adding-languages.html#%28part.__lang-based_.Languages_in_.Dr.Racket%29" class="toclink" data-pltdoc="x">2.1<span class="hspace">&nbsp;</span><span class="stt">#lang</span>-based Languages in DrRacket</a></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="adding-languages.html#%28part._.Adding_.Module-based_.Languages_to_.Dr.Racket%29" class="toclink" data-pltdoc="x">2.2<span class="hspace">&nbsp;</span>Adding Module-based Languages to DrRacket</a></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="adding-languages.html#%28part._.Adding_.Arbitrary_.Languages_to_.Dr.Racket%29" class="toclink" data-pltdoc="x">2.3<span class="hspace">&nbsp;</span>Adding Arbitrary Languages to DrRacket</a></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="adding-languages.html#%28part._.Language_.Extensions%29" class="toclink" data-pltdoc="x">2.4<span class="hspace">&nbsp;</span>Language Extensions</a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="Creating_New_Kinds_of_DrRacket_Frames.html" class="toptoclink" data-pltdoc="x">3<span class="hspace">&nbsp;</span>Creating New Kinds of DrRacket Frames</a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="Extending_the_Existing_DrRacket_Classes.html" class="toptoclink" data-pltdoc="x">4<span class="hspace">&nbsp;</span>Extending the Existing DrRacket Classes</a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="Expanding_and_Breaking.html" class="toptoclink" data-pltdoc="x">5<span class="hspace">&nbsp;</span>Expanding the User&rsquo;s Program Text and Breaking</a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="Editor_Modes.html" class="toptoclink" data-pltdoc="x">6<span class="hspace">&nbsp;</span>Editor Modes</a></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="Editor_Modes.html#%28part._.Color_.Schemes%29" class="toclink" data-pltdoc="x">6.1<span class="hspace">&nbsp;</span>Color Schemes</a></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="Editor_Modes.html#%28part._.General-purpose_.Modes%29" class="toclink" data-pltdoc="x">6.2<span class="hspace">&nbsp;</span>General-purpose Modes</a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="Language-Specific_Capabilities.html" class="toptoclink" data-pltdoc="x">7<span class="hspace">&nbsp;</span>Language-Specific Capabilities</a></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="Language-Specific_Capabilities.html#%28part._drracket~3alang-languages-customization%29" class="toclink" data-pltdoc="x">7.1<span class="hspace">&nbsp;</span>Customizing DrRacket&rsquo;s Behavior</a></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="Language-Specific_Capabilities.html#%28part._.Customizing_.Dr.Racket_s_.G.U.I%29" class="toclink" data-pltdoc="x">7.2<span class="hspace">&nbsp;</span>Customizing DrRacket&rsquo;s GUI</a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="Check_Syntax.html" class="toptoclink" data-pltdoc="x">8<span class="hspace">&nbsp;</span>Check Syntax</a></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="Check_Syntax.html#%28part._.Accessing_.Check_.Syntax_.Programmatically%29" class="toclink" data-pltdoc="x">8.1<span class="hspace">&nbsp;</span>Accessing Check Syntax Programmatically</a></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="Check_Syntax.html#%28part._.Check_.Syntax_.Button%29" class="toclink" data-pltdoc="x">8.2<span class="hspace">&nbsp;</span>Check Syntax Button</a></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="Check_Syntax.html#%28part._.Syntax_.Properties_that_.Check_.Syntax_.Looks_.For%29" class="toclink" data-pltdoc="x">8.3<span class="hspace">&nbsp;</span>Syntax Properties that Check Syntax Looks For</a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="Cooperating_with_Background_Check_Syntax.html" class="toptoclink" data-pltdoc="x">9<span class="hspace">&nbsp;</span>Cooperating with Background Check Syntax</a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="Teaching_Languages.html" class="toptoclink" data-pltdoc="x">10<span class="hspace">&nbsp;</span>Teaching Languages</a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="Signatures.html" class="toptoclink" data-pltdoc="x">11<span class="hspace">&nbsp;</span>Signatures</a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="drracket_get_extend.html" class="toptoclink" data-pltdoc="x">12<span class="hspace">&nbsp;</span><span class="stt">drracket:get/extend</span></a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="drracket_unit.html" class="toptoclink" data-pltdoc="x">13<span class="hspace">&nbsp;</span><span class="stt">drracket:unit</span></a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="drracket_language.html" class="toptoclink" data-pltdoc="x">14<span class="hspace">&nbsp;</span><span class="stt">drracket:language</span></a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="drracket_language-configuration.html" class="toptoclink" data-pltdoc="x">15<span class="hspace">&nbsp;</span><span class="stt">drracket:language-configuration</span></a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="drracket_debug.html" class="toptoclink" data-pltdoc="x">16<span class="hspace">&nbsp;</span><span class="stt">drracket:debug</span></a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="drracket_rep.html" class="toptoclink" data-pltdoc="x">17<span class="hspace">&nbsp;</span><span class="stt">drracket:rep</span></a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="drracket_frame.html" class="toptoclink" data-pltdoc="x">18<span class="hspace">&nbsp;</span><span class="stt">drracket:frame</span></a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="drracket_help-desk.html" class="toptoclink" data-pltdoc="x">19<span class="hspace">&nbsp;</span><span class="stt">drracket:help-desk</span></a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="drracket_eval.html" class="toptoclink" data-pltdoc="x">20<span class="hspace">&nbsp;</span><span class="stt">drracket:eval</span></a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="drracket_modes.html" class="toptoclink" data-pltdoc="x">21<span class="hspace">&nbsp;</span><span class="stt">drracket:modes</span></a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="drracket_module-language-tools.html" class="toptoclink" data-pltdoc="x">22<span class="hspace">&nbsp;</span><span class="stt">drracket:module-language-tools</span></a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="drracket_module-language.html" class="toptoclink" data-pltdoc="x">23<span class="hspace">&nbsp;</span><span class="stt">drracket:module-language</span></a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="Backwards_Compatibility.html" class="toptoclink" data-pltdoc="x">24<span class="hspace">&nbsp;</span>Backwards Compatibility</a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="doc-index.html" class="toptoclink" data-pltdoc="x">Index</a></p></td></tr></table><p><span style="font-weight: bold">Thanks</span></p><p>Thanks to PLT and the early adopters of the
tools interface for
their feedback and help.</p><p>A special thanks to
Eli Barzilay,
John Clements,
Matthias Felleisen,
Cormac Flanagan,
Matthew Flatt,
Max Hailperin,
Philippe Meunier, and
Christian Queinnec for their
help being early clients for DrRacket plugins.</p><div class="navsetbottom"><span class="navleft"><form class="searchform"><input class="searchbox" style="color: #888;" type="text" value="...search manuals..." title="Enter a search string to search the manuals" onkeypress="return DoSearchKey(event, this, &quot;6.1&quot;, &quot;../&quot;);" onfocus="this.style.color=&quot;black&quot;; this.style.textAlign=&quot;left&quot;; if (this.value == &quot;...search manuals...&quot;) this.value=&quot;&quot;;" onblur="if (this.value.match(/^ *$/)) { this.style.color=&quot;#888&quot;; this.style.textAlign=&quot;center&quot;; this.value=&quot;...search manuals...&quot;; }"/></form>&nbsp;&nbsp;<a href="../index.html" title="up to the documentation top" data-pltdoc="x" onclick="return GotoPLTRoot(&quot;6.1&quot;);">top</a></span><span class="navright">&nbsp;&nbsp;<span class="nonavigation">&larr; prev</span>&nbsp;&nbsp;<a href="../index.html" title="up to the documentation top" data-pltdoc="x" onclick="return GotoPLTRoot(&quot;6.1&quot;);">up</a>&nbsp;&nbsp;<a href="implementing-tools.html" title="forward to &quot;1 Implementing DrRacket Plugins&quot;" data-pltdoc="x">next &rarr;</a></span>&nbsp;</div></div></div><div id="contextindicator">&nbsp;</div></body></html>