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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html><head><title>Python: module ranger.container.bookmarks</title>
</head><body bgcolor="#f0f0f8">

<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="heading">
<tr bgcolor="#7799ee">
<td valign=bottom>&nbsp;<br>
<font color="#ffffff" face="helvetica, arial">&nbsp;<br><big><big><strong><a href="ranger.html"><font color="#ffffff">ranger</font></a>.<a href="ranger.container.html"><font color="#ffffff">container</font></a>.bookmarks</strong></big></big></font></td
><td align=right valign=bottom
><font color="#ffffff" face="helvetica, arial"><a href=".">index</a><br><a href="file:/home/hut/ranger/ranger/container/bookmarks.py">/home/hut/ranger/ranger/container/bookmarks.py</a></font></td></tr></table>
    <p><tt>#&nbsp;Copyright&nbsp;(C)&nbsp;2009,&nbsp;2010&nbsp;&nbsp;Roman&nbsp;Zimbelmann&nbsp;&lt;romanz@lavabit.com&gt;<br>
#<br>
#&nbsp;This&nbsp;program&nbsp;is&nbsp;free&nbsp;software:&nbsp;you&nbsp;can&nbsp;redistribute&nbsp;it&nbsp;and/or&nbsp;modify<br>
#&nbsp;it&nbsp;under&nbsp;the&nbsp;terms&nbsp;of&nbsp;the&nbsp;GNU&nbsp;General&nbsp;Public&nbsp;License&nbsp;as&nbsp;published&nbsp;by<br>
#&nbsp;the&nbsp;Free&nbsp;Software&nbsp;Foundation,&nbsp;either&nbsp;version&nbsp;3&nbsp;of&nbsp;the&nbsp;License,&nbsp;or<br>
#&nbsp;(at&nbsp;your&nbsp;option)&nbsp;any&nbsp;later&nbsp;version.<br>
#<br>
#&nbsp;This&nbsp;program&nbsp;is&nbsp;distributed&nbsp;in&nbsp;the&nbsp;hope&nbsp;that&nbsp;it&nbsp;will&nbsp;be&nbsp;useful,<br>
#&nbsp;but&nbsp;WITHOUT&nbsp;ANY&nbsp;WARRANTY;&nbsp;without&nbsp;even&nbsp;the&nbsp;implied&nbsp;warranty&nbsp;of<br>
#&nbsp;MERCHANTABILITY&nbsp;or&nbsp;FITNESS&nbsp;FOR&nbsp;A&nbsp;PARTICULAR&nbsp;PURPOSE.&nbsp;&nbsp;See&nbsp;the<br>
#&nbsp;GNU&nbsp;General&nbsp;Public&nbsp;License&nbsp;for&nbsp;more&nbsp;details.<br>
#<br>
#&nbsp;You&nbsp;should&nbsp;have&nbsp;received&nbsp;a&nbsp;copy&nbsp;of&nbsp;the&nbsp;GNU&nbsp;General&nbsp;Public&nbsp;License<br>
#&nbsp;along&nbsp;with&nbsp;this&nbsp;program.&nbsp;&nbsp;If&nbsp;not,&nbsp;see&nbsp;&lt;<a href="http://www.gnu.org/licenses/">http://www.gnu.org/licenses/</a>&gt;.</tt></p>
<p>
<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
<tr bgcolor="#aa55cc">
<td colspan=3 valign=bottom>&nbsp;<br>
<font color="#ffffff" face="helvetica, arial"><big><strong>Modules</strong></big></font></td></tr>
    
<tr><td bgcolor="#aa55cc"><tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</tt></td><td>&nbsp;</td>
<td width="100%"><table width="100%" summary="list"><tr><td width="25%" valign=top><a href="os.html">os</a><br>
</td><td width="25%" valign=top><a href="re.html">re</a><br>
</td><td width="25%" valign=top><a href="string.html">string</a><br>
</td><td width="25%" valign=top></td></tr></table></td></tr></table><p>
<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
<tr bgcolor="#ee77aa">
<td colspan=3 valign=bottom>&nbsp;<br>
<font color="#ffffff" face="helvetica, arial"><big><strong>Classes</strong></big></font></td></tr>
    
<tr><td bgcolor="#ee77aa"><tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</tt></td><td>&nbsp;</td>
<td width="100%"><dl>
<dt><font face="helvetica, arial"><a href="__builtin__.html#object">__builtin__.object</a>
</font></dt><dd>
<dl>
<dt><font face="helvetica, arial"><a href="ranger.container.bookmarks.html#Bookmarks">Bookmarks</a>
</font></dt></dl>
</dd>
</dl>
 <p>
<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
<tr bgcolor="#ffc8d8">
<td colspan=3 valign=bottom>&nbsp;<br>
<font color="#000000" face="helvetica, arial"><a name="Bookmarks">class <strong>Bookmarks</strong></a>(<a href="__builtin__.html#object">__builtin__.object</a>)</font></td></tr>
    
<tr bgcolor="#ffc8d8"><td rowspan=2><tt>&nbsp;&nbsp;&nbsp;</tt></td>
<td colspan=2><tt><a href="#Bookmarks">Bookmarks</a>&nbsp;is&nbsp;a&nbsp;container&nbsp;which&nbsp;associates&nbsp;keys&nbsp;with&nbsp;bookmarks.<br>
&nbsp;<br>
A&nbsp;key&nbsp;is&nbsp;a&nbsp;string&nbsp;with:&nbsp;len(key)&nbsp;==&nbsp;1&nbsp;and&nbsp;key&nbsp;in&nbsp;ALLOWED_KEYS.<br>
&nbsp;<br>
A&nbsp;bookmark&nbsp;is&nbsp;an&nbsp;<a href="__builtin__.html#object">object</a>&nbsp;with:&nbsp;bookmark&nbsp;==&nbsp;bookmarktype(str(instance))<br>
Which&nbsp;is&nbsp;true&nbsp;for&nbsp;str&nbsp;or&nbsp;FileSystemObject.&nbsp;This&nbsp;condition&nbsp;is&nbsp;required<br>
so&nbsp;bookmark-objects&nbsp;can&nbsp;be&nbsp;saved&nbsp;to&nbsp;and&nbsp;loaded&nbsp;from&nbsp;a&nbsp;file.<br>
&nbsp;<br>
Optionally,&nbsp;a&nbsp;bookmark.go()&nbsp;method&nbsp;is&nbsp;used&nbsp;for&nbsp;entering&nbsp;a&nbsp;bookmark.<br>&nbsp;</tt></td></tr>
<tr><td>&nbsp;</td>
<td width="100%">Methods defined here:<br>
<dl><dt><a name="Bookmarks-__contains__"><strong>__contains__</strong></a>(self, key)</dt><dd><tt>Test&nbsp;whether&nbsp;a&nbsp;bookmark-key&nbsp;is&nbsp;defined</tt></dd></dl>

<dl><dt><a name="Bookmarks-__getitem__"><strong>__getitem__</strong></a>(self, key)</dt><dd><tt>Get&nbsp;the&nbsp;bookmark&nbsp;associated&nbsp;with&nbsp;the&nbsp;key</tt></dd></dl>

<dl><dt><a name="Bookmarks-__init__"><strong>__init__</strong></a>(self, bookmarkfile, bookmarktype<font color="#909090">=&lt;type 'str'&gt;</font>, autosave<font color="#909090">=False</font>)</dt><dd><tt>&lt;bookmarkfile&gt;&nbsp;specifies&nbsp;the&nbsp;path&nbsp;to&nbsp;the&nbsp;file&nbsp;where<br>
bookmarks&nbsp;are&nbsp;saved&nbsp;in.</tt></dd></dl>

<dl><dt><a name="Bookmarks-__iter__"><strong>__iter__</strong></a>(self)</dt></dl>

<dl><dt><a name="Bookmarks-__setitem__"><strong>__setitem__</strong></a>(self, key, value)</dt><dd><tt>Bookmark&nbsp;&lt;value&gt;&nbsp;to&nbsp;the&nbsp;key&nbsp;&lt;key&gt;.<br>
key&nbsp;is&nbsp;expected&nbsp;to&nbsp;be&nbsp;a&nbsp;1-character&nbsp;string&nbsp;and&nbsp;element&nbsp;of&nbsp;ALLOWED_KEYS.<br>
value&nbsp;is&nbsp;expected&nbsp;to&nbsp;be&nbsp;a&nbsp;filesystemobject.</tt></dd></dl>

<dl><dt><a name="Bookmarks-delete"><strong>delete</strong></a>(self, key)</dt><dd><tt>Delete&nbsp;the&nbsp;bookmark&nbsp;with&nbsp;the&nbsp;given&nbsp;key</tt></dd></dl>

<dl><dt><a name="Bookmarks-enter"><strong>enter</strong></a>(self, key)</dt><dd><tt>Enter&nbsp;the&nbsp;bookmark&nbsp;with&nbsp;the&nbsp;given&nbsp;key.<br>
Requires&nbsp;the&nbsp;bookmark&nbsp;instance&nbsp;to&nbsp;have&nbsp;a&nbsp;go()&nbsp;method.</tt></dd></dl>

<dl><dt><a name="Bookmarks-load"><strong>load</strong></a>(self)</dt><dd><tt>Load&nbsp;the&nbsp;bookmarks&nbsp;from&nbsp;path/bookmarks</tt></dd></dl>

<dl><dt><a name="Bookmarks-remember"><strong>remember</strong></a>(self, value)</dt><dd><tt><a href="#Bookmarks">Bookmarks</a>&nbsp;&lt;value&gt;&nbsp;to&nbsp;the&nbsp;key&nbsp;'</tt></dd></dl>

<dl><dt><a name="Bookmarks-save"><strong>save</strong></a>(self)</dt><dd><tt>Save&nbsp;the&nbsp;bookmarks&nbsp;to&nbsp;the&nbsp;bookmarkfile.<br>
This&nbsp;is&nbsp;done&nbsp;automatically&nbsp;after&nbsp;every&nbsp;modification&nbsp;if&nbsp;autosave&nbsp;is&nbsp;True.</tt></dd></dl>

<dl><dt><a name="Bookmarks-update"><strong>update</strong></a>(self)</dt><dd><tt>Update&nbsp;the&nbsp;bookmarks&nbsp;from&nbsp;the&nbsp;bookmark&nbsp;file.<br>
Useful&nbsp;if&nbsp;two&nbsp;instances&nbsp;are&nbsp;running&nbsp;which&nbsp;define&nbsp;different&nbsp;bookmarks.</tt></dd></dl>

<dl><dt><a name="Bookmarks-update_if_outdated"><strong>update_if_outdated</strong></a>(self)</dt></dl>

<hr>
Data descriptors defined here:<br>
<dl><dt><strong>__dict__</strong></dt>
<dd><tt>dictionary&nbsp;for&nbsp;instance&nbsp;variables&nbsp;(if&nbsp;defined)</tt></dd>
</dl>
<dl><dt><strong>__weakref__</strong></dt>
<dd><tt>list&nbsp;of&nbsp;weak&nbsp;references&nbsp;to&nbsp;the&nbsp;object&nbsp;(if&nbsp;defined)</tt></dd>
</dl>
<hr>
Data and other attributes defined here:<br>
<dl><dt><strong>autosave</strong> = True</dl>

<dl><dt><strong>last_mtime</strong> = None</dl>

<dl><dt><strong>load_pattern</strong> = &lt;_sre.SRE_Pattern object&gt;</dl>

</td></tr></table></td></tr></table><p>
<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
<tr bgcolor="#55aa55">
<td colspan=3 valign=bottom>&nbsp;<br>
<font color="#ffffff" face="helvetica, arial"><big><strong>Data</strong></big></font></td></tr>
    
<tr><td bgcolor="#55aa55"><tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</tt></td><td>&nbsp;</td>
<td width="100%"><strong>ALLOWED_KEYS</strong> = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789`'"</td></tr></table>
</body></html>
/span>"Constant">0xe0</span> <span id="L48" class="LineNr"> 48 </span> <span class="PreProc">break</span> $to-grapheme:compute-length <span id="L49" class="LineNr"> 49 </span> <span class="Delimiter">}</span> <span id="L50" class="LineNr"> 50 </span> <span class="muComment"># 4 bytes</span> <span id="L51" class="LineNr"> 51 </span> compare c, <span class="Constant">0x1fffff</span> <span id="L52" class="LineNr"> 52 </span> <span class="Delimiter">{</span> <span id="L53" class="LineNr"> 53 </span> <span class="PreProc">break-if-&gt;</span> <span id="L54" class="LineNr"> 54 </span> num-trailers <span class="Special">&lt;-</span> copy <span class="Constant">3</span> <span id="L55" class="LineNr"> 55 </span> first <span class="Special">&lt;-</span> copy <span class="Constant">0xf0</span> <span id="L56" class="LineNr"> 56 </span> <span class="PreProc">break</span> $to-grapheme:compute-length <span id="L57" class="LineNr"> 57 </span> <span class="Delimiter">}</span> <span id="L58" class="LineNr"> 58 </span> <span class="muComment"># more than 4 bytes: unsupported</span> <span id="L59" class="LineNr"> 59 </span> <span class="muComment"># TODO: print error message to stderr</span> <span id="L60" class="LineNr"> 60 </span> compare c, <span class="Constant">0x1fffff</span> <span id="L61" class="LineNr"> 61 </span> <span class="Delimiter">{</span> <span id="L62" class="LineNr"> 62 </span> <span class="PreProc">break-if-&gt;</span> <span id="L63" class="LineNr"> 63 </span> <span class="PreProc">return</span> <span class="Constant">0</span> <span id="L64" class="LineNr"> 64 </span> <span class="Delimiter">}</span> <span id="L65" class="LineNr"> 65 </span> <span class="Delimiter">}</span> <span id="L66" class="LineNr"> 66 </span> <span class="muComment"># emit trailer bytes, 6 bits from 'in', first two bits '10'</span> <span id="L67" class="LineNr"> 67 </span> <span class="PreProc">var</span> result/<span class="Constant">edi</span>: grapheme <span class="Special">&lt;-</span> copy <span class="Constant">0</span> <span id="L68" class="LineNr"> 68 </span> <span class="Delimiter">{</span> <span id="L69" class="LineNr"> 69 </span> compare num-trailers, <span class="Constant">0</span> <span id="L70" class="LineNr"> 70 </span> <span class="PreProc">break-if-&lt;=</span> <span id="L71" class="LineNr"> 71 </span> <span class="PreProc">var</span> tmp/<span class="Constant">esi</span>: int <span class="Special">&lt;-</span> copy c <span id="L72" class="LineNr"> 72 </span> tmp <span class="Special">&lt;-</span> and <span class="Constant">0x3f</span> <span id="L73" class="LineNr"> 73 </span> tmp <span class="Special">&lt;-</span> or <span class="Constant">0x80</span> <span id="L74" class="LineNr"> 74 </span> result <span class="Special">&lt;-</span> shift-left <span class="Constant">8</span> <span id="L75" class="LineNr"> 75 </span> result <span class="Special">&lt;-</span> or tmp <span id="L76" class="LineNr"> 76 </span> <span class="muComment"># update loop state</span> <span id="L77" class="LineNr"> 77 </span> c <span class="Special">&lt;-</span> shift-right <span class="Constant">6</span> <span id="L78" class="LineNr"> 78 </span> num-trailers <span class="Special">&lt;-</span> decrement <span id="L79" class="LineNr"> 79 </span> <span class="PreProc">loop</span> <span id="L80" class="LineNr"> 80 </span> <span class="Delimiter">}</span> <span id="L81" class="LineNr"> 81 </span> <span class="muComment"># emit engine</span> <span id="L82" class="LineNr"> 82 </span> result <span class="Special">&lt;-</span> shift-left <span class="Constant">8</span> <span id="L83" class="LineNr"> 83 </span> result <span class="Special">&lt;-</span> or c <span id="L84" class="LineNr"> 84 </span> result <span class="Special">&lt;-</span> or first <span id="L85" class="LineNr"> 85 </span> <span class="muComment">#</span> <span id="L86" class="LineNr"> 86 </span> <span class="PreProc">return</span> result <span id="L87" class="LineNr"> 87 </span><span class="Delimiter">}</span> <span id="L88" class="LineNr"> 88 </span> <span id="L89" class="LineNr"> 89 </span><span class="muComment"># TODO: bring in tests once we have check-ints-equal</span> <span id="L90" class="LineNr"> 90 </span> <span id="L91" class="LineNr"> 91 </span><span class="muComment"># read the next grapheme from a stream of bytes</span> <span id="L92" class="LineNr"> 92 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='403unicode.mu.html#L92'>read-grapheme</a></span> in: (addr stream byte)<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: grapheme <span class="Delimiter">{</span> <span id="L93" class="LineNr"> 93 </span> <span class="muComment"># if at eof, return EOF</span> <span id="L94" class="LineNr"> 94 </span> <span class="Delimiter">{</span> <span id="L95" class="LineNr"> 95 </span> <span class="PreProc">var</span> eof?/<span class="Constant">eax</span>: boolean <span class="Special">&lt;-</span> <a href='309stream.subx.html#L6'>stream-empty?</a> in <span id="L96" class="LineNr"> 96 </span> compare eof?, <span class="Constant">0</span>/false <span id="L97" class="LineNr"> 97 </span> <span class="PreProc">break-if-=</span> <span id="L98" class="LineNr"> 98 </span> <span class="PreProc">return</span> <span class="Constant">0xffffffff</span> <span id="L99" class="LineNr"> 99 </span> <span class="Delimiter">}</span> <span id="L100" class="LineNr">100 </span> <span class="PreProc">var</span> c/<span class="Constant">eax</span>: byte <span class="Special">&lt;-</span> <a href='112read-byte.subx.html#L13'>read-byte</a> in <span id="L101" class="LineNr">101 </span> <span class="PreProc">var</span> num-trailers/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span> <span id="L102" class="LineNr">102 </span> $read-grapheme:compute-length: <span class="Delimiter">{</span> <span id="L103" class="LineNr">103 </span> <span class="muComment"># single byte: just return it</span> <span id="L104" class="LineNr">104 </span> compare c, <span class="Constant">0xc0</span> <span id="L105" class="LineNr">105 </span> <span class="Delimiter">{</span> <span id="L106" class="LineNr">106 </span> <span class="PreProc">break-if-&gt;=</span> <span id="L107" class="LineNr">107 </span> <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> copy c <span id="L108" class="LineNr">108 </span> <span class="PreProc">return</span> g <span id="L109" class="LineNr">109 </span> <span class="Delimiter">}</span> <span id="L110" class="LineNr">110 </span> compare c, <span class="Constant">0xfe</span> <span id="L111" class="LineNr">111 </span> <span class="Delimiter">{</span> <span id="L112" class="LineNr">112 </span> <span class="PreProc">break-if-&lt;</span> <span id="L113" class="LineNr">113 </span> <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="Special">&lt;-</span> copy c <span id="L114" class="LineNr">114 </span> <span class="PreProc">return</span> g <span id="L115" class="LineNr">115 </span> <span class="Delimiter">}</span> <span id="L116" class="LineNr">116 </span> <span class="muComment"># 2 bytes</span> <span id="L117" class="LineNr">117 </span> compare c, <span class="Constant">0xe0</span> <span id="L118" class="LineNr">118 </span> <span class="Delimiter">{</span> <span id="L119" class="LineNr">119 </span> <span class="PreProc">break-if-&gt;=</span> <span id="L120" class="LineNr">120 </span> num-trailers <span class="Special">&lt;-</span> copy <span class="Constant">1</span> <span id="L121" class="LineNr">121 </span> <span class="PreProc">break</span> $read-grapheme:compute-length <span id="L122" class="LineNr">122 </span> <span class="Delimiter">}</span> <span id="L123" class="LineNr">123 </span> <span class="muComment"># 3 bytes</span> <span id="L124" class="LineNr">124 </span> compare c, <span class="Constant">0xf0</span> <span id="L125" class="LineNr">125 </span> <span class="Delimiter">{</span> <span id="L126" class="LineNr">126 </span> <span class="PreProc">break-if-&gt;=</span> <span id="L127" class="LineNr">127 </span> num-trailers <span class="Special">&lt;-</span> copy <span class="Constant">2</span> <span id="L128" class="LineNr">128 </span> <span class="PreProc">break</span> $read-grapheme:compute-length <span id="L129" class="LineNr">129 </span> <span class="Delimiter">}</span> <span id="L130" class="LineNr">130 </span> <span class="muComment"># 4 bytes</span> <span id="L131" class="LineNr">131 </span> compare c, <span class="Constant">0xf8</span> <span id="L132" class="LineNr">132 </span> <span class="Delimiter">{</span> <span id="L133" class="LineNr">133 </span> <span class="PreProc">break-if-&gt;=</span> <span id="L134" class="LineNr">134 </span> num-trailers <span class="Special">&lt;-</span> copy <span class="Constant">3</span> <span id="L135" class="LineNr">135 </span> <span class="PreProc">break</span> $read-grapheme:compute-length <span id="L136" class="LineNr">136 </span> <span class="Delimiter">}</span> <span id="L137" class="LineNr">137 </span> <span class="muComment"># TODO: print error message</span> <span id="L138" class="LineNr">138 </span> <span class="PreProc">return</span> <span class="Constant">0</span> <span id="L139" class="LineNr">139 </span> <span class="Delimiter">}</span> <span id="L140" class="LineNr">140 </span> <span class="muComment"># prepend trailer bytes</span> <span id="L141" class="LineNr">141 </span> <span class="PreProc">var</span> result/<span class="Constant">edi</span>: grapheme <span class="Special">&lt;-</span> copy c <span id="L142" class="LineNr">142 </span> <span class="PreProc">var</span> num-byte-shifts/<span class="Constant">edx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">1</span> <span id="L143" class="LineNr">143 </span> <span class="Delimiter">{</span> <span id="L144" class="LineNr">144 </span> compare num-trailers, <span class="Constant">0</span> <span id="L145" class="LineNr">145 </span> <span class="PreProc">break-if-&lt;=</span> <span id="L146" class="LineNr">146 </span> <span class="PreProc">var</span> tmp/<span class="Constant">eax</span>: byte <span class="Special">&lt;-</span> <a href='112read-byte.subx.html#L13'>read-byte</a> in <span id="L147" class="LineNr">147 </span> <span class="PreProc">var</span> tmp2/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy tmp <span id="L148" class="LineNr">148 </span> tmp2 <span class="Special">&lt;-</span> <a href='403unicode.mu.html#L159'>shift-left-bytes</a> tmp2, num-byte-shifts <span id="L149" class="LineNr">149 </span> result <span class="Special">&lt;-</span> or tmp2 <span id="L150" class="LineNr">150 </span> <span class="muComment"># update loop state</span> <span id="L151" class="LineNr">151 </span> num-byte-shifts <span class="Special">&lt;-</span> increment <span id="L152" class="LineNr">152 </span> num-trailers <span class="Special">&lt;-</span> decrement <span id="L153" class="LineNr">153 </span> <span class="PreProc">loop</span> <span id="L154" class="LineNr">154 </span> <span class="Delimiter">}</span> <span id="L155" class="LineNr">155 </span> <span class="PreProc">return</span> result <span id="L156" class="LineNr">156 </span><span class="Delimiter">}</span> <span id="L157" class="LineNr">157 </span> <span id="L158" class="LineNr">158 </span><span class="muComment"># needed because available primitives only shift by a literal/constant number of bits</span> <span id="L159" class="LineNr">159 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='403unicode.mu.html#L159'>shift-left-bytes</a></span> n: int, k: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span> <span id="L160" class="LineNr">160 </span> <span class="PreProc">var</span> i/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span> <span id="L161" class="LineNr">161 </span> <span class="PreProc">var</span> result/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy n <span id="L162" class="LineNr">162 </span> <span class="Delimiter">{</span> <span id="L163" class="LineNr">163 </span> compare i, k <span id="L164" class="LineNr">164 </span> <span class="PreProc">break-if-&gt;=</span> <span id="L165" class="LineNr">165 </span> compare i, <span class="Constant">4</span> <span class="muComment"># only 4 bytes in 32 bits</span> <span id="L166" class="LineNr">166 </span> <span class="PreProc">break-if-&gt;=</span> <span id="L167" class="LineNr">167 </span> result <span class="Special">&lt;-</span> shift-left <span class="Constant">8</span> <span id="L168" class="LineNr">168 </span> i <span class="Special">&lt;-</span> increment <span id="L169" class="LineNr">169 </span> <span class="PreProc">loop</span> <span id="L170" class="LineNr">170 </span> <span class="Delimiter">}</span> <span id="L171" class="LineNr">171 </span> <span class="PreProc">return</span> result <span id="L172" class="LineNr">172 </span><span class="Delimiter">}</span> <span id="L173" class="LineNr">173 </span> <span id="L174" class="LineNr">174 </span><span class="muComment"># write a grapheme to a stream of bytes</span> <span id="L175" class="LineNr">175 </span><span class="muComment"># this is like write-to-stream, except we skip leading 0 bytes</span> <span id="L176" class="LineNr">176 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='403unicode.mu.html#L176'>write-grapheme</a></span> out: (addr stream byte), g: grapheme <span class="Delimiter">{</span> <span id="L177" class="LineNr">177 </span>$write-grapheme:body: <span class="Delimiter">{</span> <span id="L178" class="LineNr">178 </span> <span class="PreProc">var</span> c/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy g <span id="L179" class="LineNr">179 </span> <a href='115write-byte.subx.html#L12'>append-byte</a> out, c <span class="muComment"># first byte is always written</span> <span id="L180" class="LineNr">180 </span> c <span class="Special">&lt;-</span> shift-right <span class="Constant">8</span> <span id="L181" class="LineNr">181 </span> compare c, <span class="Constant">0</span> <span id="L182" class="LineNr">182 </span> <span class="PreProc">break-if-=</span> $write-grapheme:body <span id="L183" class="LineNr">183 </span> <a href='115write-byte.subx.html#L12'>append-byte</a> out, c <span id="L184" class="LineNr">184 </span> c <span class="Special">&lt;-</span> shift-right <span class="Constant">8</span> <span id="L185" class="LineNr">185 </span> compare c, <span class="Constant">0</span> <span id="L186" class="LineNr">186 </span> <span class="PreProc">break-if-=</span> $write-grapheme:body <span id="L187" class="LineNr">187 </span> <a href='115write-byte.subx.html#L12'>append-byte</a> out, c <span id="L188" class="LineNr">188 </span> c <span class="Special">&lt;-</span> shift-right <span class="Constant">8</span> <span id="L189" class="LineNr">189 </span> compare c, <span class="Constant">0</span> <span id="L190" class="LineNr">190 </span> <span class="PreProc">break-if-=</span> $write-grapheme:body <span id="L191" class="LineNr">191 </span> <a href='115write-byte.subx.html#L12'>append-byte</a> out, c <span id="L192" class="LineNr">192 </span><span class="Delimiter">}</span> <span id="L193" class="LineNr">193 </span><span class="Delimiter">}</span> </pre> </body> </html> <!-- vim: set foldmethod=manual : -->