186 lines
16 KiB
HTML
186 lines
16 KiB
HTML
<!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 - apps/browse.mu</title>
|
|
<meta name="Generator" content="Vim/8.1">
|
|
<meta name="plugin-version" content="vim8.1_v1">
|
|
<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-light">
|
|
<style type="text/css">
|
|
<!--
|
|
pre { white-space: pre-wrap; font-family: monospace; color: #000000; background-color: #c6c6c6; }
|
|
body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; }
|
|
a { color:inherit; }
|
|
* { font-size:12pt; font-size: 1em; }
|
|
.LineNr { }
|
|
.muFunction { color: #af5f00; text-decoration: underline; }
|
|
.SpecialChar { color: #d70000; }
|
|
.Comment { color: #005faf; }
|
|
.Constant { color: #008787; }
|
|
.Delimiter { color: #c000c0; }
|
|
.PreProc { color: #c000c0; }
|
|
-->
|
|
</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;
|
|
}
|
|
var 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();'>
|
|
<a href='https://github.com/akkartik/mu/blob/master/apps/browse.mu'>https://github.com/akkartik/mu/blob/master/apps/browse.mu</a>
|
|
<pre id='vimCodeElement'>
|
|
<span id="L1" class="LineNr"> 1 </span><span class="Comment"># Render text with word-wrap.</span>
|
|
<span id="L2" class="LineNr"> 2 </span><span class="Comment">#</span>
|
|
<span id="L3" class="LineNr"> 3 </span><span class="Comment"># To run:</span>
|
|
<span id="L4" class="LineNr"> 4 </span><span class="Comment"># $ ./translate_mu apps/browse.mu</span>
|
|
<span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ ./a.elf __text_file__</span>
|
|
<span id="L6" class="LineNr"> 6 </span><span class="Comment">#</span>
|
|
<span id="L7" class="LineNr"> 7 </span><span class="Comment"># Press 'q' to quit. All other keys scroll down.</span>
|
|
<span id="L8" class="LineNr"> 8 </span>
|
|
<span id="L9" class="LineNr"> 9 </span><span class="PreProc">fn</span> <span class="muFunction">main</span> args: (addr array (addr array byte))<span class="PreProc"> -> </span>exit-status/<span class="Constant">ebx</span>: int <span class="Delimiter">{</span>
|
|
<span id="L10" class="LineNr"> 10 </span> <span class="PreProc">var</span> filename/<span class="Constant">eax</span>: (addr array byte) <span class="SpecialChar"><-</span> <a href='browse.mu.html#L101'>first-arg</a> args
|
|
<span id="L11" class="LineNr"> 11 </span> <span class="PreProc">var</span> file/<span class="Constant">esi</span>: (addr buffered-file) <span class="SpecialChar"><-</span> <a href='browse.mu.html#L107'>load-file</a> filename
|
|
<span id="L12" class="LineNr"> 12 </span> <a href='../103screen.subx.html#L6'>enable-screen-grid-mode</a>
|
|
<span id="L13" class="LineNr"> 13 </span> <span class="PreProc">var</span> nrows/<span class="Constant">eax</span>: int <span class="SpecialChar"><-</span> copy <span class="Constant">0</span>
|
|
<span id="L14" class="LineNr"> 14 </span> <span class="PreProc">var</span> ncols/<span class="Constant">ecx</span>: int <span class="SpecialChar"><-</span> copy <span class="Constant">0</span>
|
|
<span id="L15" class="LineNr"> 15 </span> nrows, ncols <span class="SpecialChar"><-</span> <a href='../103screen.subx.html#L37'>screen-size</a>
|
|
<span id="L16" class="LineNr"> 16 </span> <a href='../104keyboard.subx.html#L6'>enable-keyboard-immediate-mode</a>
|
|
<span id="L17" class="LineNr"> 17 </span> <span class="Delimiter">{</span>
|
|
<span id="L18" class="LineNr"> 18 </span> <a href='browse.mu.html#L29'>render</a> file, nrows, ncols
|
|
<span id="L19" class="LineNr"> 19 </span> <span class="PreProc">var</span> key/<span class="Constant">eax</span>: byte <span class="SpecialChar"><-</span> <a href='../104keyboard.subx.html#L122'>read-key</a>
|
|
<span id="L20" class="LineNr"> 20 </span> compare key, <span class="Constant">0x71</span> <span class="Comment"># 'q'</span>
|
|
<span id="L21" class="LineNr"> 21 </span> <span class="PreProc">loop-if-!=</span>
|
|
<span id="L22" class="LineNr"> 22 </span> <span class="Delimiter">}</span>
|
|
<span id="L23" class="LineNr"> 23 </span> <a href='../104keyboard.subx.html#L72'>enable-keyboard-type-mode</a>
|
|
<span id="L24" class="LineNr"> 24 </span> <a href='../103screen.subx.html#L24'>enable-screen-type-mode</a>
|
|
<span id="L25" class="LineNr"> 25 </span> exit-status <span class="SpecialChar"><-</span> copy <span class="Constant">0</span>
|
|
<span id="L26" class="LineNr"> 26 </span><span class="Delimiter">}</span>
|
|
<span id="L27" class="LineNr"> 27 </span>
|
|
<span id="L28" class="LineNr"> 28 </span><span class="Comment"># decide how to lay out pages on screen</span>
|
|
<span id="L29" class="LineNr"> 29 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='browse.mu.html#L29'>render</a></span> in: (addr buffered-file), nrows: int, ncols: int <span class="Delimiter">{</span>
|
|
<span id="L30" class="LineNr"> 30 </span> <span class="Comment"># Fit multiple pages on screen on separate columns, each wide enough to read</span>
|
|
<span id="L31" class="LineNr"> 31 </span> <span class="Comment"># comfortably.</span>
|
|
<span id="L32" class="LineNr"> 32 </span> <span class="Comment"># Pages are separated horizontally by a 'page margin'. Among other reasons,</span>
|
|
<span id="L33" class="LineNr"> 33 </span> <span class="Comment"># this allows the odd line to bleed out on the right if necessary.</span>
|
|
<span id="L34" class="LineNr"> 34 </span> <span class="Comment">#</span>
|
|
<span id="L35" class="LineNr"> 35 </span> <span class="Comment"># hardcoded parameters:</span>
|
|
<span id="L36" class="LineNr"> 36 </span> <span class="Comment"># top-margin</span>
|
|
<span id="L37" class="LineNr"> 37 </span> <span class="Comment"># page-margin</span>
|
|
<span id="L38" class="LineNr"> 38 </span> <span class="Comment"># text-width</span>
|
|
<span id="L39" class="LineNr"> 39 </span> <span class="PreProc">var</span> toprow/<span class="Constant">eax</span>: int <span class="SpecialChar"><-</span> copy <span class="Constant">2</span> <span class="Comment"># top-margin</span>
|
|
<span id="L40" class="LineNr"> 40 </span> <span class="PreProc">var</span> botrow/<span class="Constant">ecx</span>: int <span class="SpecialChar"><-</span> copy nrows
|
|
<span id="L41" class="LineNr"> 41 </span> <span class="PreProc">var</span> leftcol/<span class="Constant">edx</span>: int <span class="SpecialChar"><-</span> copy <span class="Constant">5</span> <span class="Comment"># page-margin</span>
|
|
<span id="L42" class="LineNr"> 42 </span> <span class="PreProc">var</span> rightcol/<span class="Constant">ebx</span>: int <span class="SpecialChar"><-</span> copy leftcol
|
|
<span id="L43" class="LineNr"> 43 </span> rightcol <span class="SpecialChar"><-</span> add <span class="Constant">0x40</span> <span class="Comment"># text-width = 64 characters</span>
|
|
<span id="L44" class="LineNr"> 44 </span> <span class="Delimiter">{</span>
|
|
<span id="L45" class="LineNr"> 45 </span> compare rightcol, ncols
|
|
<span id="L46" class="LineNr"> 46 </span> <span class="PreProc">break-if->=</span>
|
|
<span id="L47" class="LineNr"> 47 </span> <a href='browse.mu.html#L56'>render-page</a> in, toprow, leftcol, botrow, rightcol
|
|
<span id="L48" class="LineNr"> 48 </span> leftcol <span class="SpecialChar"><-</span> copy rightcol
|
|
<span id="L49" class="LineNr"> 49 </span> leftcol <span class="SpecialChar"><-</span> add <span class="Constant">5</span> <span class="Comment"># page-margin</span>
|
|
<span id="L50" class="LineNr"> 50 </span> rightcol <span class="SpecialChar"><-</span> copy leftcol
|
|
<span id="L51" class="LineNr"> 51 </span> rightcol <span class="SpecialChar"><-</span> add <span class="Constant">0x40</span> <span class="Comment"># text-width</span>
|
|
<span id="L52" class="LineNr"> 52 </span> <span class="PreProc">loop</span>
|
|
<span id="L53" class="LineNr"> 53 </span> <span class="Delimiter">}</span>
|
|
<span id="L54" class="LineNr"> 54 </span><span class="Delimiter">}</span>
|
|
<span id="L55" class="LineNr"> 55 </span>
|
|
<span id="L56" class="LineNr"> 56 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='browse.mu.html#L56'>render-page</a></span> in: (addr buffered-file), toprow: int, leftcol: int, botrow: int, rightcol: int <span class="Delimiter">{</span>
|
|
<span id="L57" class="LineNr"> 57 </span> <a href='browse.mu.html#L82'>clear</a> toprow, leftcol, botrow, rightcol
|
|
<span id="L58" class="LineNr"> 58 </span> <span class="Comment"># render screen rows</span>
|
|
<span id="L59" class="LineNr"> 59 </span> <span class="PreProc">var</span> row/<span class="Constant">ecx</span>: int <span class="SpecialChar"><-</span> copy toprow
|
|
<span id="L60" class="LineNr"> 60 </span>$line-loop: <span class="Delimiter">{</span>
|
|
<span id="L61" class="LineNr"> 61 </span> compare row, botrow
|
|
<span id="L62" class="LineNr"> 62 </span> <span class="PreProc">break-if->=</span>
|
|
<span id="L63" class="LineNr"> 63 </span> <span class="PreProc">var</span> col/<span class="Constant">edx</span>: int <span class="SpecialChar"><-</span> copy leftcol
|
|
<span id="L64" class="LineNr"> 64 </span> <a href='../103screen.subx.html#L91'>move-cursor</a> row, col
|
|
<span id="L65" class="LineNr"> 65 </span> <span class="Delimiter">{</span>
|
|
<span id="L66" class="LineNr"> 66 </span> compare col, rightcol
|
|
<span id="L67" class="LineNr"> 67 </span> <span class="PreProc">break-if->=</span>
|
|
<span id="L68" class="LineNr"> 68 </span> <span class="PreProc">var</span> c/<span class="Constant">eax</span>: byte <span class="SpecialChar"><-</span> <a href='../061read-byte.subx.html#L38'>read-byte-buffered</a> in
|
|
<span id="L69" class="LineNr"> 69 </span> compare c, <span class="Constant">0xffffffff</span> <span class="Comment"># EOF marker</span>
|
|
<span id="L70" class="LineNr"> 70 </span> <span class="PreProc">break-if-=</span> $line-loop
|
|
<span id="L71" class="LineNr"> 71 </span> compare c, <span class="Constant">0xa</span> <span class="Comment"># newline</span>
|
|
<span id="L72" class="LineNr"> 72 </span> <span class="PreProc">break-if-=</span> <span class="Comment"># no need to print newlines</span>
|
|
<span id="L73" class="LineNr"> 73 </span> <a href='../103screen.subx.html#L135'>print-byte</a> c
|
|
<span id="L74" class="LineNr"> 74 </span> col <span class="SpecialChar"><-</span> increment
|
|
<span id="L75" class="LineNr"> 75 </span> <span class="PreProc">loop</span>
|
|
<span id="L76" class="LineNr"> 76 </span> <span class="Delimiter">}</span>
|
|
<span id="L77" class="LineNr"> 77 </span> row <span class="SpecialChar"><-</span> increment
|
|
<span id="L78" class="LineNr"> 78 </span> <span class="PreProc">loop</span>
|
|
<span id="L79" class="LineNr"> 79 </span> <span class="Delimiter">}</span>
|
|
<span id="L80" class="LineNr"> 80 </span><span class="Delimiter">}</span>
|
|
<span id="L81" class="LineNr"> 81 </span>
|
|
<span id="L82" class="LineNr"> 82 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='browse.mu.html#L82'>clear</a></span> toprow: int, leftcol: int, botrow: int, rightcol: int <span class="Delimiter">{</span>
|
|
<span id="L83" class="LineNr"> 83 </span> <span class="PreProc">var</span> row/<span class="Constant">ecx</span>: int <span class="SpecialChar"><-</span> copy toprow
|
|
<span id="L84" class="LineNr"> 84 </span> <span class="Delimiter">{</span>
|
|
<span id="L85" class="LineNr"> 85 </span> compare row, botrow
|
|
<span id="L86" class="LineNr"> 86 </span> <span class="PreProc">break-if->=</span>
|
|
<span id="L87" class="LineNr"> 87 </span> <span class="PreProc">var</span> col/<span class="Constant">edx</span>: int <span class="SpecialChar"><-</span> copy leftcol
|
|
<span id="L88" class="LineNr"> 88 </span> <a href='../103screen.subx.html#L91'>move-cursor</a> row, col
|
|
<span id="L89" class="LineNr"> 89 </span> <span class="Delimiter">{</span>
|
|
<span id="L90" class="LineNr"> 90 </span> compare col, rightcol
|
|
<span id="L91" class="LineNr"> 91 </span> <span class="PreProc">break-if->=</span>
|
|
<span id="L92" class="LineNr"> 92 </span> <a href='../103screen.subx.html#L122'>print-string</a> <span class="Constant">" "</span>
|
|
<span id="L93" class="LineNr"> 93 </span> col <span class="SpecialChar"><-</span> increment
|
|
<span id="L94" class="LineNr"> 94 </span> <span class="PreProc">loop</span>
|
|
<span id="L95" class="LineNr"> 95 </span> <span class="Delimiter">}</span>
|
|
<span id="L96" class="LineNr"> 96 </span> row <span class="SpecialChar"><-</span> increment
|
|
<span id="L97" class="LineNr"> 97 </span> <span class="PreProc">loop</span>
|
|
<span id="L98" class="LineNr"> 98 </span> <span class="Delimiter">}</span>
|
|
<span id="L99" class="LineNr"> 99 </span><span class="Delimiter">}</span>
|
|
<span id="L100" class="LineNr">100 </span>
|
|
<span id="L101" class="LineNr">101 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='browse.mu.html#L101'>first-arg</a></span> args-on-stack: (addr array (addr array byte))<span class="PreProc"> -> </span>out/<span class="Constant">eax</span>: (addr array byte) <span class="Delimiter">{</span>
|
|
<span id="L102" class="LineNr">102 </span> <span class="PreProc">var</span> args/<span class="Constant">eax</span>: (addr array (addr array byte)) <span class="SpecialChar"><-</span> copy args-on-stack
|
|
<span id="L103" class="LineNr">103 </span> <span class="PreProc">var</span> result/<span class="Constant">eax</span>: (addr addr array byte) <span class="SpecialChar"><-</span> index args, <span class="Constant">1</span>
|
|
<span id="L104" class="LineNr">104 </span> out <span class="SpecialChar"><-</span> copy *result
|
|
<span id="L105" class="LineNr">105 </span><span class="Delimiter">}</span>
|
|
<span id="L106" class="LineNr">106 </span>
|
|
<span id="L107" class="LineNr">107 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='browse.mu.html#L107'>load-file</a></span> filename: (addr array byte)<span class="PreProc"> -> </span>out/<span class="Constant">esi</span>: (addr buffered-file) <span class="Delimiter">{</span>
|
|
<span id="L108" class="LineNr">108 </span> <span class="PreProc">var</span> result: (handle buffered-file)
|
|
<span id="L109" class="LineNr">109 </span> <span class="Delimiter">{</span>
|
|
<span id="L110" class="LineNr">110 </span> <span class="PreProc">var</span> tmp1/<span class="Constant">eax</span>: (addr handle buffered-file) <span class="SpecialChar"><-</span> address result
|
|
<span id="L111" class="LineNr">111 </span> <a href='../105files.subx.html#L3'>open</a> filename, <span class="Constant">0</span>, tmp1
|
|
<span id="L112" class="LineNr">112 </span> <span class="Delimiter">}</span>
|
|
<span id="L113" class="LineNr">113 </span> <span class="PreProc">var</span> tmp2/<span class="Constant">eax</span>: (addr buffered-file) <span class="SpecialChar"><-</span> <a href='../069allocate.subx.html#L258'>lookup</a> result
|
|
<span id="L114" class="LineNr">114 </span> out <span class="SpecialChar"><-</span> copy tmp2
|
|
<span id="L115" class="LineNr">115 </span><span class="Delimiter">}</span>
|
|
<span id="L116" class="LineNr">116 </span>
|
|
<span id="L117" class="LineNr">117 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='browse.mu.html#L117'>dump</a></span> in: (addr buffered-file) <span class="Delimiter">{</span>
|
|
<span id="L118" class="LineNr">118 </span> <span class="PreProc">var</span> c/<span class="Constant">eax</span>: byte <span class="SpecialChar"><-</span> <a href='../061read-byte.subx.html#L38'>read-byte-buffered</a> in
|
|
<span id="L119" class="LineNr">119 </span> compare c, <span class="Constant">0xffffffff</span> <span class="Comment"># EOF marker</span>
|
|
<span id="L120" class="LineNr">120 </span> <span class="PreProc">break-if-=</span>
|
|
<span id="L121" class="LineNr">121 </span> <a href='../103screen.subx.html#L135'>print-byte</a> c
|
|
<span id="L122" class="LineNr">122 </span> <span class="PreProc">loop</span>
|
|
<span id="L123" class="LineNr">123 </span><span class="Delimiter">}</span>
|
|
</pre>
|
|
</body>
|
|
</html>
|
|
<!-- vim: set foldmethod=manual : -->
|