<!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 - 066stream.mu</title> <meta name="Generator" content="Vim/8.0"> <meta name="plugin-version" content="vim7.4_v2"> <meta name="syntax" content="none"> <meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> <meta name="colorscheme" content="minimal"> <style type="text/css"> <!-- pre { white-space: pre-wrap; font-family: monospace; color: #aaaaaa; background-color: #080808; } body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; } a { color:#eeeeee; text-decoration: none; } a:hover { text-decoration: underline; } * { font-size: 12pt; font-size: 1em; } .muControl { color: #c0a020; } .muRecipe { color: #ff8700; } .LineNr { color: #444444; } .muData { color: #ffff00; } .Delimiter { color: #800080; } .Constant { color: #00a0a0; } .Special { color: #c00000; } .Comment { color: #9090ff; } .Comment a { color:#0000ee; text-decoration:underline; } --> </style> <script type='text/javascript'> <!-- /* function to open any folds containing a jumped-to line before jumping to it */ function JumpToLine() { var lineNum; lineNum = window.location.hash; lineNum = lineNum.substr(1); /* strip off '#' */ if (lineNum.indexOf('L') == -1) { lineNum = 'L'+lineNum; } lineElem = document.getElementById(lineNum); /* Always jump to new location even if the line was hidden inside a fold, or * we corrected the raw number to a line ID. */ if (lineElem) { lineElem.scrollIntoView(true); } return true; } if ('onhashchange' in window) { window.onhashchange = JumpToLine; } --> </script> </head> <body onload='JumpToLine();'> <pre id='vimCodeElement'> <span id="L1" class="LineNr"> 1 </span><span class="Comment"># new type to help incrementally scan arrays</span> <span id="L2" class="LineNr"> 2 </span><span class="muData">container</span> <a href='066stream.mu.html#L2'>stream</a>:_elem [ <span id="L3" class="LineNr"> 3 </span> index:num <span id="L4" class="LineNr"> 4 </span> data:&:@:_elem <span id="L5" class="LineNr"> 5 </span>] <span id="L6" class="LineNr"> 6 </span> <span id="L7" class="LineNr"> 7 </span><span class="muRecipe">def</span> <a href='066stream.mu.html#L7'>new-stream</a> s:&:@:_elem<span class="muRecipe"> -> </span>result:&:<a href='066stream.mu.html#L2'>stream</a>:_elem [ <span id="L8" class="LineNr"> 8 </span> <span class="Constant">local-scope</span> <span id="L9" class="LineNr"> 9 </span> <span class="Constant">load-inputs</span> <span id="L10" class="LineNr">10 </span> <span class="muControl">return-unless</span> s,<span class="Constant"> null</span> <span id="L11" class="LineNr">11 </span> result <span class="Special"><-</span> new <span class="Delimiter">{</span>(stream _elem): type<span class="Delimiter">}</span> <span id="L12" class="LineNr">12 </span> *result <span class="Special"><-</span> put *result, <span class="Constant">index:offset</span>,<span class="Constant"> 0</span> <span id="L13" class="LineNr">13 </span> *result <span class="Special"><-</span> put *result, <span class="Constant">data:offset</span>, s <span id="L14" class="LineNr">14 </span>] <span id="L15" class="LineNr">15 </span> <span id="L16" class="LineNr">16 </span><span class="muRecipe">def</span> <a href='066stream.mu.html#L16'>rewind</a> in:&:<a href='066stream.mu.html#L2'>stream</a>:_elem<span class="muRecipe"> -> </span>in:&:<a href='066stream.mu.html#L2'>stream</a>:_elem [ <span id="L17" class="LineNr">17 </span> <span class="Constant">local-scope</span> <span id="L18" class="LineNr">18 </span> <span class="Constant">load-inputs</span> <span id="L19" class="LineNr">19 </span> <span class="muControl">return-unless</span> in <span id="L20" class="LineNr">20 </span> *in <span class="Special"><-</span> put *in, <span class="Constant">index:offset</span>,<span class="Constant"> 0</span> <span id="L21" class="LineNr">21 </span>] <span id="L22" class="LineNr">22 </span> <span id="L23" class="LineNr">23 </span><span class="muRecipe">def</span> read in:&:<a href='066stream.mu.html#L2'>stream</a>:_elem<span class="muRecipe"> -> </span>result:_elem, empty?:bool, in:&:<a href='066stream.mu.html#L2'>stream</a>:_elem [ <span id="L24" class="LineNr">24 </span> <span class="Constant">local-scope</span> <span id="L25" class="LineNr">25 </span> <span class="Constant">load-inputs</span> <span id="L26" class="LineNr">26 </span> assert in, <span class="Constant">[cannot read; <a href='066stream.mu.html#L2'>stream</a> has no data]</span> <span id="L27" class="LineNr">27 </span> empty? <span class="Special"><-</span> copy<span class="Constant"> false</span> <span id="L28" class="LineNr">28 </span> idx:num <span class="Special"><-</span> get *in, <span class="Constant">index:offset</span> <span id="L29" class="LineNr">29 </span> s:&:@:_elem <span class="Special"><-</span> get *in, <span class="Constant">data:offset</span> <span id="L30" class="LineNr">30 </span> len:num <span class="Special"><-</span> length *s <span id="L31" class="LineNr">31 </span> at-end?:bool <span class="Special"><-</span> greater-or-equal idx len <span id="L32" class="LineNr">32 </span> <span class="Delimiter">{</span> <span id="L33" class="LineNr">33 </span> <span class="muControl">break-unless</span> at-end? <span id="L34" class="LineNr">34 </span> empty-result:&:_elem <span class="Special"><-</span> new <span class="Constant">_elem:type</span> <span id="L35" class="LineNr">35 </span> <span class="muControl"> return</span> *empty-result,<span class="Constant"> true</span> <span id="L36" class="LineNr">36 </span> <span class="Delimiter">}</span> <span id="L37" class="LineNr">37 </span> result <span class="Special"><-</span> index *s, idx <span id="L38" class="LineNr">38 </span> idx <span class="Special"><-</span> add idx,<span class="Constant"> 1</span> <span id="L39" class="LineNr">39 </span> *in <span class="Special"><-</span> put *in, <span class="Constant">index:offset</span>, idx <span id="L40" class="LineNr">40 </span>] <span id="L41" class="LineNr">41 </span> <span id="L42" class="LineNr">42 </span><span class="muRecipe">def</span> <a href='066stream.mu.html#L42'>peek</a> in:&:<a href='066stream.mu.html#L2'>stream</a>:_elem<span class="muRecipe"> -> </span>result:_elem, empty?:bool [ <span id="L43" class="LineNr">43 </span> <span class="Constant">local-scope</span> <span id="L44" class="LineNr">44 </span> <span class="Constant">load-inputs</span> <span id="L45" class="LineNr">45 </span> assert in, <span class="Constant">[cannot peek; <a href='066stream.mu.html#L2'>stream</a> has no data]</span> <span id="L46" class="LineNr">46 </span> empty?:bool <span class="Special"><-</span> copy<span class="Constant"> false</span> <span id="L47" class="LineNr">47 </span> idx:num <span class="Special"><-</span> get *in, <span class="Constant">index:offset</span> <span id="L48" class="LineNr">48 </span> s:&:@:_elem <span class="Special"><-</span> get *in, <span class="Constant">data:offset</span> <span id="L49" class="LineNr">49 </span> len:num <span class="Special"><-</span> length *s <span id="L50" class="LineNr">50 </span> at-end?:bool <span class="Special"><-</span> greater-or-equal idx len <span id="L51" class="LineNr">51 </span> <span class="Delimiter">{</span> <span id="L52" class="LineNr">52 </span> <span class="muControl">break-unless</span> at-end? <span id="L53" class="LineNr">53 </span> empty-result:&:_elem <span class="Special"><-</span> new <span class="Constant">_elem:type</span> <span id="L54" class="LineNr">54 </span> <span class="muControl"> return</span> *empty-result,<span class="Constant"> true</span> <span id="L55" class="LineNr">55 </span> <span class="Delimiter">}</span> <span id="L56" class="LineNr">56 </span> result <span class="Special"><-</span> index *s, idx <span id="L57" class="LineNr">57 </span>] <span id="L58" class="LineNr">58 </span> <span id="L59" class="LineNr">59 </span><span class="muRecipe">def</span> <a href='066stream.mu.html#L59'>read-line</a> in:&:<a href='066stream.mu.html#L2'>stream</a>:char<span class="muRecipe"> -> </span>result:text, in:&:<a href='066stream.mu.html#L2'>stream</a>:char [ <span id="L60" class="LineNr">60 </span> <span class="Constant">local-scope</span> <span id="L61" class="LineNr">61 </span> <span class="Constant">load-inputs</span> <span id="L62" class="LineNr">62 </span> assert in, <span class="Constant">[cannot read-line; <a href='066stream.mu.html#L2'>stream</a> has no data]</span> <span id="L63" class="LineNr">63 </span> idx:num <span class="Special"><-</span> get *in, <span class="Constant">index:offset</span> <span id="L64" class="LineNr">64 </span> s:text <span class="Special"><-</span> get *in, <span class="Constant">data:offset</span> <span id="L65" class="LineNr">65 </span> next-idx:num <span class="Special"><-</span> find-next s, <span class="Constant">10/newline</span>, idx <span id="L66" class="LineNr">66 </span> result <span class="Special"><-</span> <a href='061text.mu.html#L1287'>copy-range</a> s, idx, next-idx <span id="L67" class="LineNr">67 </span> idx <span class="Special"><-</span> add next-idx,<span class="Constant"> 1</span> <span class="Comment"># skip newline</span> <span id="L68" class="LineNr">68 </span> <span class="Comment"># write back</span> <span id="L69" class="LineNr">69 </span> *in <span class="Special"><-</span> put *in, <span class="Constant">index:offset</span>, idx <span id="L70" class="LineNr">70 </span>] <span id="L71" class="LineNr">71 </span> <span id="L72" class="LineNr">72 </span><span class="muRecipe">def</span> <a href='066stream.mu.html#L72'>end-of-stream?</a> in:&:<a href='066stream.mu.html#L2'>stream</a>:_elem<span class="muRecipe"> -> </span>result:bool [ <span id="L73" class="LineNr">73 </span> <span class="Constant">local-scope</span> <span id="L74" class="LineNr">74 </span> <span class="Constant">load-inputs</span> <span id="L75" class="LineNr">75 </span> assert in, <span class="Constant">[cannot check end-of-stream?; <a href='066stream.mu.html#L2'>stream</a> has no data]</span> <span id="L76" class="LineNr">76 </span> idx:num <span class="Special"><-</span> get *in, <span class="Constant">index:offset</span> <span id="L77" class="LineNr">77 </span> s:&:@:_elem <span class="Special"><-</span> get *in, <span class="Constant">data:offset</span> <span id="L78" class="LineNr">78 </span> len:num <span class="Special"><-</span> length *s <span id="L79" class="LineNr">79 </span> result <span class="Special"><-</span> greater-or-equal idx, len <span id="L80" class="LineNr">80 </span>] </pre> </body> </html> <!-- vim: set foldmethod=manual : -->