<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <title>Mu - tangle.mu</title> <meta name="Generator" content="Vim/7.4"> <meta name="plugin-version" content="vim7.4_v2"> <meta name="syntax" content="none"> <meta name="settings" content="use_css,pre_wrap,no_foldcolumn,expand_tabs,prevent_copy="> <meta name="colorscheme" content="minimal"> <style type="text/css"> <!-- pre { white-space: pre-wrap; font-family: monospace; color: #eeeeee; background-color: #080808; } body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color: #080808; } * { font-size: 12pt; font-size: 1em; } .muRecipe { color: #ff8700; } .Delimiter { color: #800080; } .Comment { color: #9090ff; } .Constant { color: #00a0a0; } .Special { color: #c00000; } .muControl { color: #c0a020; } --> </style> <script type='text/javascript'> <!-- --> </script> </head> <body> <pre id='vimCodeElement'> <span class="Comment"># example program: constructing functions out of order</span> <span class="Comment">#</span> <span class="Comment"># We construct a factorial function with separate base and recursive cases.</span> <span class="Comment"># Compare factorial.mu.</span> <span class="Comment">#</span> <span class="Comment"># This isn't a very tasteful example, just a simple demonstration of</span> <span class="Comment"># possibilities.</span> <span class="muRecipe">def</span> factorial n:number<span class="muRecipe"> -> </span>result:number [ <span class="Constant">local-scope</span> <span class="Constant">load-ingredients</span> <span class="Delimiter">{</span> <span class="Constant"> <base-case></span> <span class="Delimiter">}</span> <span class="Constant"> <recursive-case></span> ] <span class="muRecipe">after</span> <span class="Constant"><base-case></span> [ <span class="Comment"># if n=0 return 1</span> zero?:boolean<span class="Special"> <- </span>equal n, <span class="Constant">0</span> <span class="muControl">break-unless</span> zero? <span class="muControl">return</span> <span class="Constant">1</span> ] <span class="muRecipe">after</span> <span class="Constant"><recursive-case></span> [ <span class="Comment"># return n * factorial(n - 1)</span> x:number<span class="Special"> <- </span>subtract n, <span class="Constant">1</span> subresult:number<span class="Special"> <- </span>factorial x result<span class="Special"> <- </span>multiply subresult, n ] <span class="muRecipe">def</span> main [ <span class="Constant">1</span>:number<span class="Special"> <- </span>factorial <span class="Constant">5</span> $print <span class="Constant">[result: ]</span>, <span class="Constant">1</span>:number, [ ] ] </pre> </body> </html> <!-- vim: set foldmethod=manual : -->