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+<!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 - 067stream.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; }
+.muData { color: #ffff00; }
+.Comment { color: #9090ff; }
+.Constant { color: #00a0a0; }
+.Special { color: #c00000; }
+-->
+</style>
+
+<script type='text/javascript'>
+<!--
+
+-->
+</script>
+</head>
+<body>
+<pre id='vimCodeElement'>
+<span class="Comment"># new type to help incrementally read texts (arrays of characters)</span>
+<span class="muData">container</span> stream [
+  index:number
+  data:address:array:character
+]
+
+<span class="muRecipe">def</span> new-stream s:address:array:character<span class="muRecipe"> -&gt; </span>result:address:stream [
+  <span class="Constant">local-scope</span>
+  <span class="Constant">load-ingredients</span>
+  result<span class="Special"> &lt;- </span>new <span class="Constant">stream:type</span>
+  *result<span class="Special"> &lt;- </span>put *result, <span class="Constant">index:offset</span>, <span class="Constant">0</span>
+  *result<span class="Special"> &lt;- </span>put *result, <span class="Constant">data:offset</span>, s
+]
+
+<span class="muRecipe">def</span> rewind-stream in:address:stream<span class="muRecipe"> -&gt; </span>in:address:stream [
+  <span class="Constant">local-scope</span>
+  <span class="Constant">load-ingredients</span>
+  *in<span class="Special"> &lt;- </span>put *in, <span class="Constant">index:offset</span>, <span class="Constant">0</span>
+]
+
+<span class="muRecipe">def</span> read-line in:address:stream<span class="muRecipe"> -&gt; </span>result:address:array:character, in:address:stream [
+  <span class="Constant">local-scope</span>
+  <span class="Constant">load-ingredients</span>
+  idx:number<span class="Special"> &lt;- </span>get *in, <span class="Constant">index:offset</span>
+  s:address:array:character<span class="Special"> &lt;- </span>get *in, <span class="Constant">data:offset</span>
+  next-idx:number<span class="Special"> &lt;- </span>find-next s, <span class="Constant">10/newline</span>, idx
+  result<span class="Special"> &lt;- </span>copy-range s, idx, next-idx
+  idx<span class="Special"> &lt;- </span>add next-idx, <span class="Constant">1</span>  <span class="Comment"># skip newline</span>
+  <span class="Comment"># write back</span>
+  *in<span class="Special"> &lt;- </span>put *in, <span class="Constant">index:offset</span>, idx
+]
+
+<span class="muRecipe">def</span> end-of-stream? in:address:stream<span class="muRecipe"> -&gt; </span>result:boolean [
+  <span class="Constant">local-scope</span>
+  <span class="Constant">load-ingredients</span>
+  idx:number<span class="Special"> &lt;- </span>get *in, <span class="Constant">index:offset</span>
+  s:address:array:character<span class="Special"> &lt;- </span>get *in, <span class="Constant">data:offset</span>
+  len:number<span class="Special"> &lt;- </span>length *s
+  result<span class="Special"> &lt;- </span>greater-or-equal idx, len
+]
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->