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<html><head><meta http-equiv="content-type" content="text-html; charset=utf-8" /><title>2 Our plan of attack</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="scribble-style.css" title="default" /><link rel="stylesheet" type="text/css" href="gh.css" title="default" /><script type="text/javascript" src="scribble-common.js"></script><!--[if IE 6]><style type="text/css">.SIEHidden { overflow: hidden; }</style><![endif]--><meta name="keywords" content="Racket,macros,Scheme"><meta name="description" content="Practical Racket macros"><meta name="author" content="Greg Hendershott"><meta name="charset" content="utf-8"><link href='http://fonts.googleapis.com/css?family=Fenix' rel='stylesheet' type='text/css'><script type="text/javascript">var _gaq = _gaq || [];_gaq.push(['_setAccount', 'UA-29709446-1']);_gaq.push(['_setDomainName', 'greghendershott.com']);_gaq.push(['_trackPageview']);(function() {var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);})();</script></head><body id="scribble-racket-lang-org"><div class="tocset"><div class="tocview"><div class="tocviewlist" style="margin-bottom: 1em;"><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,"tocview_0");">▼</a></td><td></td><td><a href="index.html" class="tocviewlink" pltdoc="x">Fear of Macros</a></td></tr></table></div><div class="tocviewsublistonly" style="display: block;" id="tocview_0"><table cellspacing="0" cellpadding="0"><tr><td align="right">1 </td><td><a href="Preface.html" class="tocviewlink" pltdoc="x">Preface</a></td></tr><tr><td align="right">2 </td><td><a href="" class="tocviewselflink" pltdoc="x">Our plan of attack</a></td></tr><tr><td align="right">3 </td><td><a href="Transform_.html" class="tocviewlink" pltdoc="x">Transform!</a></td></tr><tr><td align="right">4 </td><td><a href="pattern-matching.html" class="tocviewlink" pltdoc="x">Pattern matching:<span class="mywbr"> </span> syntax-<wbr></wbr>case and syntax-<wbr></wbr>rules</a></td></tr><tr><td align="right">5 </td><td><a href="Syntax_parameters.html" class="tocviewlink" pltdoc="x">Syntax parameters</a></td></tr><tr><td align="right">6 </td><td><a href="What_s_the_point_of_splicing-let_.html" class="tocviewlink" pltdoc="x">What’s the point of <span class="RktSym"><span class="RktStxLink">splicing-<wbr></wbr>let</span></span>?</a></td></tr><tr><td align="right">7 </td><td><a href="Robust_macros__syntax-parse.html" class="tocviewlink" pltdoc="x">Robust macros:<span class="mywbr"> </span> syntax-<wbr></wbr>parse</a></td></tr><tr><td align="right">8 </td><td><a href="References_and_Acknowledgments.html" class="tocviewlink" pltdoc="x">References and Acknowledgments</a></td></tr><tr><td align="right">9 </td><td><a href="Epilogue.html" class="tocviewlink" pltdoc="x">Epilogue</a></td></tr></table></div></div></div></div><div class="maincolumn"><div class="main"><div class="navsettop"><span class="navleft"> </span><span class="navright"><a href="Preface.html" title="backward to "1 Preface"" pltdoc="x">← prev</a> <a href="index.html" title="up to "Fear of Macros"" pltdoc="x">up</a> <a href="Transform_.html" title="forward to "3 Transform!"" pltdoc="x">next →</a></span> </div><h3>2<tt> </tt><a name="(part._.Our_plan_of_attack)"></a>Our plan of attack</h3><p>The macro system you will mostly want to use for production-quality
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macros is called <span class="RktSym"><a href="http://docs.racket-lang.org/syntax/Parsing_Syntax.html#(form._((lib._syntax%2Fparse..rkt)._syntax-parse))" class="RktStxLink" pltdoc="x">syntax-parse</a></span>. And don’t worry, we’ll get to
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<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8" /><title>2 Our plan of attack</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="scribble-style.css" title="default" /><link rel="stylesheet" type="text/css" href="gh.css" title="default" /><script type="text/javascript" src="scribble-common.js"></script><!--[if IE 6]><style type="text/css">.SIEHidden { overflow: hidden; }</style><![endif]--><meta name="keywords" content="Racket,macros,Scheme"><meta name="description" content="Practical Racket macros"><meta name="author" content="Greg Hendershott"><meta name="charset" content="utf-8"><link href='http://fonts.googleapis.com/css?family=Fenix' rel='stylesheet' type='text/css'><script type="text/javascript">var _gaq = _gaq || [];_gaq.push(['_setAccount', 'UA-29709446-1']);_gaq.push(['_setDomainName', 'greghendershott.com']);_gaq.push(['_trackPageview']);(function() {var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);})();</script></head><body id="scribble-racket-lang-org"><div class="tocset"><div class="tocview"><div class="tocviewlist" style="margin-bottom: 1em;"><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,"tocview_0");">▼</a></td><td></td><td><a href="index.html" class="tocviewlink" data-pltdoc="x">Fear of Macros</a></td></tr></table></div><div class="tocviewsublistonly" style="display: block;" id="tocview_0"><table cellspacing="0" cellpadding="0"><tr><td align="right">1 </td><td><a href="Preface.html" class="tocviewlink" data-pltdoc="x">Preface</a></td></tr><tr><td align="right">2 </td><td><a href="" class="tocviewselflink" data-pltdoc="x">Our plan of attack</a></td></tr><tr><td align="right">3 </td><td><a href="Transform_.html" class="tocviewlink" data-pltdoc="x">Transform!</a></td></tr><tr><td align="right">4 </td><td><a href="pattern-matching.html" class="tocviewlink" data-pltdoc="x">Pattern matching:<span class="mywbr"> </span> syntax-<wbr></wbr>case and syntax-<wbr></wbr>rules</a></td></tr><tr><td align="right">5 </td><td><a href="Syntax_parameters.html" class="tocviewlink" data-pltdoc="x">Syntax parameters</a></td></tr><tr><td align="right">6 </td><td><a href="What_s_the_point_of_splicing-let_.html" class="tocviewlink" data-pltdoc="x">What’s the point of <span class="RktSym"><span class="RktStxLink">splicing-<wbr></wbr>let</span></span>?</a></td></tr><tr><td align="right">7 </td><td><a href="Robust_macros__syntax-parse.html" class="tocviewlink" data-pltdoc="x">Robust macros:<span class="mywbr"> </span> syntax-<wbr></wbr>parse</a></td></tr><tr><td align="right">8 </td><td><a href="References_and_Acknowledgments.html" class="tocviewlink" data-pltdoc="x">References and Acknowledgments</a></td></tr><tr><td align="right">9 </td><td><a href="Epilogue.html" class="tocviewlink" data-pltdoc="x">Epilogue</a></td></tr></table></div></div></div></div><div class="maincolumn"><div class="main"><div class="navsettop"><span class="navleft"> </span><span class="navright"> <a href="Preface.html" title="backward to "1 Preface"" data-pltdoc="x">← prev</a> <a href="index.html" title="up to "Fear of Macros"" data-pltdoc="x">up</a> <a href="Transform_.html" title="forward to "3 Transform!"" data-pltdoc="x">next →</a></span> </div><h3>2<tt> </tt><a name="(part._.Our_plan_of_attack)"></a>Our plan of attack</h3><p>The macro system you will mostly want to use for production-quality
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macros is called <span class="RktSym"><a href="http://docs.racket-lang.org/syntax/Parsing_Syntax.html#%28form._%28%28lib._syntax%2Fparse..rkt%29._syntax-parse%29%29" class="RktStxLink" data-pltdoc="x">syntax-parse</a></span>. And don’t worry, we’ll get to
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that soon.</p><p>But if we start there, you’re likely to feel overwhelmed by concepts
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and terminology, and get very confused. I did.</p><p>1. Instead let’s start with the basics: A syntax object and a function
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to change it—<wbr></wbr>a "transformer". We’ll work at that level for awhile to
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get comfortable and to de-mythologize this whole macro business.</p><p>2. Soon we’ll realize that pattern-matching would make life
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easier. We’ll learn about <span class="RktSym"><a href="http://docs.racket-lang.org/reference/stx-patterns.html#(form._((lib._racket%2Fprivate%2Fstxcase-scheme..rkt)._syntax-case))" class="RktStxLink" pltdoc="x">syntax-case</a></span> and its shorthand
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cousin, <span class="RktSym"><a href="http://docs.racket-lang.org/reference/stx-patterns.html#(form._((lib._racket%2Fprivate%2Fmisc..rkt)._define-syntax-rule))" class="RktStxLink" pltdoc="x">define-syntax-rule</a></span>. We’ll discover we can get
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easier. We’ll learn about <span class="RktSym"><a href="http://docs.racket-lang.org/reference/stx-patterns.html#%28form._%28%28lib._racket%2Fprivate%2Fstxcase-scheme..rkt%29._syntax-case%29%29" class="RktStxLink" data-pltdoc="x">syntax-case</a></span> and its shorthand
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cousin, <span class="RktSym"><a href="http://docs.racket-lang.org/reference/stx-patterns.html#%28form._%28%28lib._racket%2Fprivate%2Fmisc..rkt%29._define-syntax-rule%29%29" class="RktStxLink" data-pltdoc="x">define-syntax-rule</a></span>. We’ll discover we can get
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confused if we want to munge pattern variables before sticking them
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back in the template, and learn how to do that.</p><p>3. At this point we’ll be able to write many useful macros. But, what
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if we want to write the ever-popular anaphoric if, with a "magic
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@ -19,4 +19,4 @@ they’re used in error. Normal Racket functions optionally can have
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contracts and types. These catch usage mistakes and provide clear,
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useful error messages. It would be great if there were something
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similar for macro. There is. One of the more-recent Racket macro
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enhancements is <span class="RktSym"><a href="http://docs.racket-lang.org/syntax/Parsing_Syntax.html#(form._((lib._syntax%2Fparse..rkt)._syntax-parse))" class="RktStxLink" pltdoc="x">syntax-parse</a></span>.</p><div class="navsetbottom"><span class="navleft"> </span><span class="navright"><a href="Preface.html" title="backward to "1 Preface"" pltdoc="x">← prev</a> <a href="index.html" title="up to "Fear of Macros"" pltdoc="x">up</a> <a href="Transform_.html" title="forward to "3 Transform!"" pltdoc="x">next →</a></span> </div></div></div><div id="contextindicator"> </div></body></html>
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enhancements is <span class="RktSym"><a href="http://docs.racket-lang.org/syntax/Parsing_Syntax.html#%28form._%28%28lib._syntax%2Fparse..rkt%29._syntax-parse%29%29" class="RktStxLink" data-pltdoc="x">syntax-parse</a></span>.</p><div class="navsetbottom"><span class="navleft"> </span><span class="navright"> <a href="Preface.html" title="backward to "1 Preface"" data-pltdoc="x">← prev</a> <a href="index.html" title="up to "Fear of Macros"" data-pltdoc="x">up</a> <a href="Transform_.html" title="forward to "3 Transform!"" data-pltdoc="x">next →</a></span> </div></div></div><div id="contextindicator"> </div></body></html>
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html><head><meta http-equiv="content-type" content="text-html; charset=utf-8" /><title>1 Preface</title><link rel="stylesheet" type="text/css" href="scribble.css" title="default" /><link rel="stylesheet" type="text/css" href="scribble-style.css" title="default" /><link rel="stylesheet" type="text/css" href="gh.css" title="default" /><script type="text/javascript" src="scribble-common.js"></script><!--[if IE 6]><style type="text/css">.SIEHidden { overflow: hidden; }</style><![endif]--><meta name="keywords" content="Racket,macros,Scheme"><meta name="description" content="Practical Racket macros"><meta name="author" content="Greg Hendershott"><meta name="charset" content="utf-8"><link href='http://fonts.googleapis.com/css?family=Fenix' rel='stylesheet' type='text/css'><script type="text/javascript">var _gaq = _gaq || [];_gaq.push(['_setAccount', 'UA-29709446-1']);_gaq.push(['_setDomainName', 'greghendershott.com']);_gaq.push(['_trackPageview']);(function() {var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);})();</script></head><body id="scribble-racket-lang-org"><div class="tocset"><div class="tocview"><div class="tocviewlist" style="margin-bottom: 1em;"><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,"tocview_0");">▼</a></td><td></td><td><a href="index.html" class="tocviewlink" pltdoc="x">Fear of Macros</a></td></tr></table></div><div class="tocviewsublistonly" style="display: block;" id="tocview_0"><table cellspacing="0" cellpadding="0"><tr><td align="right">1 </td><td><a href="" class="tocviewselflink" pltdoc="x">Preface</a></td></tr><tr><td align="right">2 </td><td><a href="Our_plan_of_attack.html" class="tocviewlink" pltdoc="x">Our plan of attack</a></td></tr><tr><td align="right">3 </td><td><a href="Transform_.html" class="tocviewlink" pltdoc="x">Transform!</a></td></tr><tr><td align="right">4 </td><td><a href="pattern-matching.html" class="tocviewlink" pltdoc="x">Pattern matching:<span class="mywbr"> </span> syntax-<wbr></wbr>case and syntax-<wbr></wbr>rules</a></td></tr><tr><td align="right">5 </td><td><a href="Syntax_parameters.html" class="tocviewlink" pltdoc="x">Syntax parameters</a></td></tr><tr><td align="right">6 </td><td><a href="What_s_the_point_of_splicing-let_.html" class="tocviewlink" pltdoc="x">What’s the point of <span class="RktSym"><span class="RktStxLink">splicing-<wbr></wbr>let</span></span>?</a></td></tr><tr><td align="right">7 </td><td><a href="Robust_macros__syntax-parse.html" class="tocviewlink" pltdoc="x">Robust macros:<span class="mywbr"> </span> syntax-<wbr></wbr>parse</a></td></tr><tr><td align="right">8 </td><td><a href="References_and_Acknowledgments.html" class="tocviewlink" pltdoc="x">References and Acknowledgments</a></td></tr><tr><td align="right">9 </td><td><a href="Epilogue.html" class="tocviewlink" pltdoc="x">Epilogue</a></td></tr></table></div></div></div></div><div class="maincolumn"><div class="main"><div class="navsettop"><span class="navleft"> </span><span class="navright"><a href="index.html" title="backward to "Fear of Macros"" pltdoc="x">← prev</a> <a href="index.html" title="up to "Fear of Macros"" pltdoc="x">up</a> <a href="Our_plan_of_attack.html" title="forward to "2 Our plan of attack"" pltdoc="x">next →</a></span> </div><h3>1<tt> </tt><a name="(part._.Preface)"></a>Preface</h3><p>I learned Racket after 25 years of mostly using C and C++.</p><p>Some psychic whiplash resulted.</p><p>"All the parentheses" was actually not a big deal. Instead, the first
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8" /><title>1 Preface</title><link rel="stylesheet" type="text/css" href="scribble.css" title="default" /><link rel="stylesheet" type="text/css" href="scribble-style.css" title="default" /><link rel="stylesheet" type="text/css" href="gh.css" title="default" /><script type="text/javascript" src="scribble-common.js"></script><!--[if IE 6]><style type="text/css">.SIEHidden { overflow: hidden; }</style><![endif]--><meta name="keywords" content="Racket,macros,Scheme"><meta name="description" content="Practical Racket macros"><meta name="author" content="Greg Hendershott"><meta name="charset" content="utf-8"><link href='http://fonts.googleapis.com/css?family=Fenix' rel='stylesheet' type='text/css'><script type="text/javascript">var _gaq = _gaq || [];_gaq.push(['_setAccount', 'UA-29709446-1']);_gaq.push(['_setDomainName', 'greghendershott.com']);_gaq.push(['_trackPageview']);(function() {var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);})();</script></head><body id="scribble-racket-lang-org"><div class="tocset"><div class="tocview"><div class="tocviewlist" style="margin-bottom: 1em;"><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,"tocview_0");">▼</a></td><td></td><td><a href="index.html" class="tocviewlink" data-pltdoc="x">Fear of Macros</a></td></tr></table></div><div class="tocviewsublistonly" style="display: block;" id="tocview_0"><table cellspacing="0" cellpadding="0"><tr><td align="right">1 </td><td><a href="" class="tocviewselflink" data-pltdoc="x">Preface</a></td></tr><tr><td align="right">2 </td><td><a href="Our_plan_of_attack.html" class="tocviewlink" data-pltdoc="x">Our plan of attack</a></td></tr><tr><td align="right">3 </td><td><a href="Transform_.html" class="tocviewlink" data-pltdoc="x">Transform!</a></td></tr><tr><td align="right">4 </td><td><a href="pattern-matching.html" class="tocviewlink" data-pltdoc="x">Pattern matching:<span class="mywbr"> </span> syntax-<wbr></wbr>case and syntax-<wbr></wbr>rules</a></td></tr><tr><td align="right">5 </td><td><a href="Syntax_parameters.html" class="tocviewlink" data-pltdoc="x">Syntax parameters</a></td></tr><tr><td align="right">6 </td><td><a href="What_s_the_point_of_splicing-let_.html" class="tocviewlink" data-pltdoc="x">What’s the point of <span class="RktSym"><span class="RktStxLink">splicing-<wbr></wbr>let</span></span>?</a></td></tr><tr><td align="right">7 </td><td><a href="Robust_macros__syntax-parse.html" class="tocviewlink" data-pltdoc="x">Robust macros:<span class="mywbr"> </span> syntax-<wbr></wbr>parse</a></td></tr><tr><td align="right">8 </td><td><a href="References_and_Acknowledgments.html" class="tocviewlink" data-pltdoc="x">References and Acknowledgments</a></td></tr><tr><td align="right">9 </td><td><a href="Epilogue.html" class="tocviewlink" data-pltdoc="x">Epilogue</a></td></tr></table></div></div></div></div><div class="maincolumn"><div class="main"><div class="navsettop"><span class="navleft"> </span><span class="navright"> <a href="index.html" title="backward to "Fear of Macros"" data-pltdoc="x">← prev</a> <a href="index.html" title="up to "Fear of Macros"" data-pltdoc="x">up</a> <a href="Our_plan_of_attack.html" title="forward to "2 Our plan of attack"" data-pltdoc="x">next →</a></span> </div><h3>1<tt> </tt><a name="(part._.Preface)"></a>Preface</h3><p>I learned Racket after 25 years of mostly using C and C++.</p><p>Some psychic whiplash resulted.</p><p>"All the parentheses" was actually not a big deal. Instead, the first
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mind warp was functional programming. Before long I wrapped my brain
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around it, and went on to become comfortable and effective with many
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other aspects and features of Racket.</p><p>But two final frontiers remained: Macros and continuations.</p><p>I found that simple macros were easy and understandable, plus there
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@ -21,4 +21,4 @@ problems or annoyances. I learn more quickly and deeply when I
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discover the answer to a question I already have, or find the solution
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to a problem whose pain I already feel. Therefore I’ll give you the
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questions and problems first, so that you can better appreciate and
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understand the answers and solutions.</p><div class="navsetbottom"><span class="navleft"> </span><span class="navright"><a href="index.html" title="backward to "Fear of Macros"" pltdoc="x">← prev</a> <a href="index.html" title="up to "Fear of Macros"" pltdoc="x">up</a> <a href="Our_plan_of_attack.html" title="forward to "2 Our plan of attack"" pltdoc="x">next →</a></span> </div></div></div><div id="contextindicator"> </div></body></html>
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understand the answers and solutions.</p><div class="navsetbottom"><span class="navleft"> </span><span class="navright"> <a href="index.html" title="backward to "Fear of Macros"" data-pltdoc="x">← prev</a> <a href="index.html" title="up to "Fear of Macros"" data-pltdoc="x">up</a> <a href="Our_plan_of_attack.html" title="forward to "2 Our plan of attack"" data-pltdoc="x">next →</a></span> </div></div></div><div id="contextindicator"> </div></body></html>
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@ -1,22 +1,22 @@
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<html><head><meta http-equiv="content-type" content="text-html; charset=utf-8" /><title>8 References and Acknowledgments</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="scribble-style.css" title="default" /><link rel="stylesheet" type="text/css" href="gh.css" title="default" /><script type="text/javascript" src="scribble-common.js"></script><!--[if IE 6]><style type="text/css">.SIEHidden { overflow: hidden; }</style><![endif]--><meta name="keywords" content="Racket,macros,Scheme"><meta name="description" content="Practical Racket macros"><meta name="author" content="Greg Hendershott"><meta name="charset" content="utf-8"><link href='http://fonts.googleapis.com/css?family=Fenix' rel='stylesheet' type='text/css'><script type="text/javascript">var _gaq = _gaq || [];_gaq.push(['_setAccount', 'UA-29709446-1']);_gaq.push(['_setDomainName', 'greghendershott.com']);_gaq.push(['_trackPageview']);(function() {var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);})();</script></head><body id="scribble-racket-lang-org"><div class="tocset"><div class="tocview"><div class="tocviewlist" style="margin-bottom: 1em;"><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,"tocview_0");">▼</a></td><td></td><td><a href="index.html" class="tocviewlink" pltdoc="x">Fear of Macros</a></td></tr></table></div><div class="tocviewsublistonly" style="display: block;" id="tocview_0"><table cellspacing="0" cellpadding="0"><tr><td align="right">1 </td><td><a href="Preface.html" class="tocviewlink" pltdoc="x">Preface</a></td></tr><tr><td align="right">2 </td><td><a href="Our_plan_of_attack.html" class="tocviewlink" pltdoc="x">Our plan of attack</a></td></tr><tr><td align="right">3 </td><td><a href="Transform_.html" class="tocviewlink" pltdoc="x">Transform!</a></td></tr><tr><td align="right">4 </td><td><a href="pattern-matching.html" class="tocviewlink" pltdoc="x">Pattern matching:<span class="mywbr"> </span> syntax-<wbr></wbr>case and syntax-<wbr></wbr>rules</a></td></tr><tr><td align="right">5 </td><td><a href="Syntax_parameters.html" class="tocviewlink" pltdoc="x">Syntax parameters</a></td></tr><tr><td align="right">6 </td><td><a href="What_s_the_point_of_splicing-let_.html" class="tocviewlink" pltdoc="x">What’s the point of <span class="RktSym"><span class="RktStxLink">splicing-<wbr></wbr>let</span></span>?</a></td></tr><tr><td align="right">7 </td><td><a href="Robust_macros__syntax-parse.html" class="tocviewlink" pltdoc="x">Robust macros:<span class="mywbr"> </span> syntax-<wbr></wbr>parse</a></td></tr><tr><td align="right">8 </td><td><a href="" class="tocviewselflink" pltdoc="x">References and Acknowledgments</a></td></tr><tr><td align="right">9 </td><td><a href="Epilogue.html" class="tocviewlink" pltdoc="x">Epilogue</a></td></tr></table></div></div></div></div><div class="maincolumn"><div class="main"><div class="navsettop"><span class="navleft"> </span><span class="navright"><a href="Robust_macros__syntax-parse.html" title="backward to "7 Robust macros: syntax-parse"" pltdoc="x">← prev</a> <a href="index.html" title="up to "Fear of Macros"" pltdoc="x">up</a> <a href="Epilogue.html" title="forward to "9 Epilogue"" pltdoc="x">next →</a></span> </div><h3>8<tt> </tt><a name="(part._.References_and_.Acknowledgments)"></a>References and Acknowledgments</h3><p>Eli Barzliay’s blog post,
|
||||
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
||||
<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8" /><title>8 References and Acknowledgments</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="scribble-style.css" title="default" /><link rel="stylesheet" type="text/css" href="gh.css" title="default" /><script type="text/javascript" src="scribble-common.js"></script><!--[if IE 6]><style type="text/css">.SIEHidden { overflow: hidden; }</style><![endif]--><meta name="keywords" content="Racket,macros,Scheme"><meta name="description" content="Practical Racket macros"><meta name="author" content="Greg Hendershott"><meta name="charset" content="utf-8"><link href='http://fonts.googleapis.com/css?family=Fenix' rel='stylesheet' type='text/css'><script type="text/javascript">var _gaq = _gaq || [];_gaq.push(['_setAccount', 'UA-29709446-1']);_gaq.push(['_setDomainName', 'greghendershott.com']);_gaq.push(['_trackPageview']);(function() {var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);})();</script></head><body id="scribble-racket-lang-org"><div class="tocset"><div class="tocview"><div class="tocviewlist" style="margin-bottom: 1em;"><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,"tocview_0");">▼</a></td><td></td><td><a href="index.html" class="tocviewlink" data-pltdoc="x">Fear of Macros</a></td></tr></table></div><div class="tocviewsublistonly" style="display: block;" id="tocview_0"><table cellspacing="0" cellpadding="0"><tr><td align="right">1 </td><td><a href="Preface.html" class="tocviewlink" data-pltdoc="x">Preface</a></td></tr><tr><td align="right">2 </td><td><a href="Our_plan_of_attack.html" class="tocviewlink" data-pltdoc="x">Our plan of attack</a></td></tr><tr><td align="right">3 </td><td><a href="Transform_.html" class="tocviewlink" data-pltdoc="x">Transform!</a></td></tr><tr><td align="right">4 </td><td><a href="pattern-matching.html" class="tocviewlink" data-pltdoc="x">Pattern matching:<span class="mywbr"> </span> syntax-<wbr></wbr>case and syntax-<wbr></wbr>rules</a></td></tr><tr><td align="right">5 </td><td><a href="Syntax_parameters.html" class="tocviewlink" data-pltdoc="x">Syntax parameters</a></td></tr><tr><td align="right">6 </td><td><a href="What_s_the_point_of_splicing-let_.html" class="tocviewlink" data-pltdoc="x">What’s the point of <span class="RktSym"><span class="RktStxLink">splicing-<wbr></wbr>let</span></span>?</a></td></tr><tr><td align="right">7 </td><td><a href="Robust_macros__syntax-parse.html" class="tocviewlink" data-pltdoc="x">Robust macros:<span class="mywbr"> </span> syntax-<wbr></wbr>parse</a></td></tr><tr><td align="right">8 </td><td><a href="" class="tocviewselflink" data-pltdoc="x">References and Acknowledgments</a></td></tr><tr><td align="right">9 </td><td><a href="Epilogue.html" class="tocviewlink" data-pltdoc="x">Epilogue</a></td></tr></table></div></div></div></div><div class="maincolumn"><div class="main"><div class="navsettop"><span class="navleft"> </span><span class="navright"> <a href="Robust_macros__syntax-parse.html" title="backward to "7 Robust macros: syntax-parse"" data-pltdoc="x">← prev</a> <a href="index.html" title="up to "Fear of Macros"" data-pltdoc="x">up</a> <a href="Epilogue.html" title="forward to "9 Epilogue"" data-pltdoc="x">next →</a></span> </div><h3>8<tt> </tt><a name="(part._.References_and_.Acknowledgments)"></a>References and Acknowledgments</h3><p>Eli Barzliay’s blog post,
|
||||
<a href="http://blog.racket-lang.org/2011/04/writing-syntax-case-macros.html">Writing
|
||||
‘syntax-case’ Macros</a>, helped me understand many key details and
|
||||
concepts, and inspired me to use a "bottom-up" approach.</p><p>Eli wrote another blog post,
|
||||
<a href="http://blog.racket-lang.org/2008/02/dirty-looking-hygiene.html">Dirty
|
||||
Looking Hygiene</a>, which explains <span class="RktSym"><a href="http://docs.racket-lang.org/reference/stxparam.html#(form._((lib._racket%2Fstxparam..rkt)._syntax-parameterize))" class="RktStxLink" pltdoc="x">syntax-parameterize</a></span>. I
|
||||
Looking Hygiene</a>, which explains <span class="RktSym"><a href="http://docs.racket-lang.org/reference/stxparam.html#%28form._%28%28lib._racket%2Fstxparam..rkt%29._syntax-parameterize%29%29" class="RktStxLink" data-pltdoc="x">syntax-parameterize</a></span>. I
|
||||
relied heavily on that, mostly just updating it since his post was
|
||||
written before PLT Scheme was renamed to Racket.</p><p>Matthew Flatt’s
|
||||
<a href="http://www.cs.utah.edu/plt/publications/macromod.pdf">Composable
|
||||
and Compilable Macros: You Want it When? (PDF)</a> explains how Racket
|
||||
handles compile time vs. run time.</p><p><a href="http://www.scheme.com/tspl4/syntax.html#./syntax:h0">Chapter
|
||||
8</a> of <span style="font-style: italic">The Scheme Programming Language</span> by Kent Dybvig
|
||||
explains <span class="RktSym"><a href="http://docs.racket-lang.org/reference/stx-patterns.html#(form._((lib._racket%2Fprivate%2Fstxcase-scheme..rkt)._syntax-rules))" class="RktStxLink" pltdoc="x">syntax-rules</a></span> and <span class="RktSym"><a href="http://docs.racket-lang.org/reference/stx-patterns.html#(form._((lib._racket%2Fprivate%2Fstxcase-scheme..rkt)._syntax-case))" class="RktStxLink" pltdoc="x">syntax-case</a></span>.</p><p><a href="http://www.ccs.neu.edu/racket/pubs/icfp10-cf.pdf">Fortifying
|
||||
explains <span class="RktSym"><a href="http://docs.racket-lang.org/reference/stx-patterns.html#%28form._%28%28lib._racket%2Fprivate%2Fstxcase-scheme..rkt%29._syntax-rules%29%29" class="RktStxLink" data-pltdoc="x">syntax-rules</a></span> and <span class="RktSym"><a href="http://docs.racket-lang.org/reference/stx-patterns.html#%28form._%28%28lib._racket%2Fprivate%2Fstxcase-scheme..rkt%29._syntax-case%29%29" class="RktStxLink" data-pltdoc="x">syntax-case</a></span>.</p><p><a href="http://www.ccs.neu.edu/racket/pubs/icfp10-cf.pdf">Fortifying
|
||||
Macros (PDF)</a> is the paper by Ryan Culpepper and Matthias Felleisen
|
||||
introducing <span class="RktSym"><a href="http://docs.racket-lang.org/syntax/Parsing_Syntax.html#(form._((lib._syntax%2Fparse..rkt)._syntax-parse))" class="RktStxLink" pltdoc="x">syntax-parse</a></span>.</p><p>Shriram Krishnamurthi looked at a very early draft and encouraged me
|
||||
introducing <span class="RktSym"><a href="http://docs.racket-lang.org/syntax/Parsing_Syntax.html#%28form._%28%28lib._syntax%2Fparse..rkt%29._syntax-parse%29%29" class="RktStxLink" data-pltdoc="x">syntax-parse</a></span>.</p><p>Shriram Krishnamurthi looked at a very early draft and encouraged me
|
||||
to keep going. Sam Tobin-Hochstadt and Robby Findler also encouraged
|
||||
me. Matthew Flatt showed me how to make a Scribble
|
||||
<span class="RktSym">interaction</span> print <span class="RktSym"><a href="http://docs.racket-lang.org/reference/stx-patterns.html#(form._((lib._racket%2Fprivate%2Fstxcase-scheme..rkt)._syntax))" class="RktStxLink" pltdoc="x">syntax</a></span> as <span class="RktVal">"syntax"</span> rather
|
||||
<span class="RktSym">interaction</span> print <span class="RktSym"><a href="http://docs.racket-lang.org/reference/stx-patterns.html#%28form._%28%28lib._racket%2Fprivate%2Fstxcase-scheme..rkt%29._syntax%29%29" class="RktStxLink" data-pltdoc="x">syntax</a></span> as <span class="RktVal">"syntax"</span> rather
|
||||
than as <span class="RktVal">"#'"</span>. Jay McCarthy helped me catch some mistakes and
|
||||
confusions. Jon Rafkind provided suggestions. Kieron Hardy reported a
|
||||
font issue and some typos.</p><p>Finally, I noticed something strange. After writing much of this, when
|
||||
|
|
@ -25,4 +25,4 @@ improved since I last read it. Of course, it was the same; I’d
|
|||
changed. It’s interesting how much of what we already know is
|
||||
projected between the lines. My point is, the Racket documentation is
|
||||
very good. The <span style="font-style: italic">Guide</span> provides helpful examples and
|
||||
tutorials. The <span style="font-style: italic">Reference</span> is very clear and precise.</p><div class="navsetbottom"><span class="navleft"> </span><span class="navright"><a href="Robust_macros__syntax-parse.html" title="backward to "7 Robust macros: syntax-parse"" pltdoc="x">← prev</a> <a href="index.html" title="up to "Fear of Macros"" pltdoc="x">up</a> <a href="Epilogue.html" title="forward to "9 Epilogue"" pltdoc="x">next →</a></span> </div></div></div><div id="contextindicator"> </div></body></html>
|
||||
tutorials. The <span style="font-style: italic">Reference</span> is very clear and precise.</p><div class="navsetbottom"><span class="navleft"> </span><span class="navright"> <a href="Robust_macros__syntax-parse.html" title="backward to "7 Robust macros: syntax-parse"" data-pltdoc="x">← prev</a> <a href="index.html" title="up to "Fear of Macros"" data-pltdoc="x">up</a> <a href="Epilogue.html" title="forward to "9 Epilogue"" data-pltdoc="x">next →</a></span> </div></div></div><div id="contextindicator"> </div></body></html>
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|
@ -4,7 +4,8 @@
|
|||
/* Monospace: */
|
||||
.RktIn, .RktRdr, .RktPn, .RktMeta,
|
||||
.RktMod, .RktKw, .RktVar, .RktSym,
|
||||
.RktRes, .RktOut, .RktCmt, .RktVal {
|
||||
.RktRes, .RktOut, .RktCmt, .RktVal,
|
||||
.RktBlk {
|
||||
font-family: monospace;
|
||||
white-space: inherit;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -26,7 +26,7 @@ function GetPageArg(key, def) {
|
|||
|
||||
function MergePageArgsIntoLink(a) {
|
||||
if (page_args.length == 0 ||
|
||||
(!a.attributes["pltdoc"]) || (a.attributes["pltdoc"].value == ""))
|
||||
(!a.attributes["data-pltdoc"]) || (a.attributes["data-pltdoc"].value == ""))
|
||||
return;
|
||||
a.href.search(/^([^?#]*)(?:\?([^#]*))?(#.*)?$/);
|
||||
if (RegExp.$2.length == 0) {
|
||||
|
|
@ -96,7 +96,7 @@ function GotoPLTRoot(ver, relative) {
|
|||
|
||||
// Utilities ------------------------------------------------------------------
|
||||
|
||||
normalize_rxs = [/\/\/+/g, /\/\.(\/|$)/, /\/[^\/]*\/\.\.(\/|$)/];
|
||||
var normalize_rxs = [/\/\/+/g, /\/\.(\/|$)/, /\/[^\/]*\/\.\.(\/|$)/];
|
||||
function NormalizePath(path) {
|
||||
var tmp, i;
|
||||
for (i = 0; i < normalize_rxs.length; i++)
|
||||
|
|
|
|||
16
scribble.css
16
scribble.css
|
|
@ -154,6 +154,10 @@ table td {
|
|||
font-size: xx-small; /* avoid overlap with author */
|
||||
}
|
||||
|
||||
.version:before, .versionNoNav:before {
|
||||
content: "Version ";
|
||||
}
|
||||
|
||||
/* ---------------------------------------- */
|
||||
/* Margin notes */
|
||||
|
||||
|
|
@ -469,3 +473,15 @@ i {
|
|||
display: inline;
|
||||
white-space: nowrap;
|
||||
}
|
||||
|
||||
/* print styles : hide the navigation elements */
|
||||
@media print {
|
||||
.tocset,
|
||||
.navsettop,
|
||||
.navsetbottom { display: none; }
|
||||
.maincolumn {
|
||||
width: auto;
|
||||
margin-right: 13em;
|
||||
margin-left: 0;
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user