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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html><head><title>Python: module ranger.__main__</title>
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<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>.__main__</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/code/ranger/ranger/__main__.py">/home/hut/code/ranger/ranger/__main__.py</a></font></td></tr></table>
    <p><tt>#&nbsp;coding=utf-8<br>
#<br>
#&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="sys.html">sys</a><br>
</td><td width="25%" valign=top></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="#eeaa77">
<td colspan=3 valign=bottom>&nbsp;<br>
<font color="#ffffff" face="helvetica, arial"><big><strong>Functions</strong></big></font></td></tr>
    
<tr><td bgcolor="#eeaa77"><tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</tt></td><td>&nbsp;</td>
<td width="100%"><dl><dt><a name="-allow_access_to_confdir"><strong>allow_access_to_confdir</strong></a>(confdir, allow)</dt></dl>
 <dl><dt><a name="-load_apps"><strong>load_apps</strong></a>(fm, clean)</dt></dl>
 <dl><dt><a name="-load_settings"><strong>load_settings</strong></a>(fm, clean)</dt></dl>
 <dl><dt><a name="-main"><strong>main</strong></a>()</dt><dd><tt>initialize&nbsp;objects&nbsp;and&nbsp;run&nbsp;the&nbsp;filemanager</tt></dd></dl>
 <dl><dt><a name="-parse_arguments"><strong>parse_arguments</strong></a>()</dt><dd><tt>Parse&nbsp;the&nbsp;program&nbsp;arguments</tt></dd></dl>
</td></tr></table>
</body></html>
> id="L7" class="LineNr"> 7 </span><span class="muComment"># $ ./a.elf &lt; input</span> <span id="L8" class="LineNr"> 8 </span><span class="muComment"># found</span> <span id="L9" class="LineNr"> 9 </span><span class="muComment"># 143 407 1470</span> <span id="L10" class="LineNr"> 10 </span><span class="muComment"># 85555470</span> <span id="L11" class="LineNr"> 11 </span><span class="muComment">#</span> <span id="L12" class="LineNr"> 12 </span><span class="muComment"># You'll need to register to download the 'input' file for yourself.</span> <span id="L13" class="LineNr"> 13 </span> <span id="L14" class="LineNr"> 14 </span><span class="PreProc">fn</span> <span class="muFunction">main</span><span class="PreProc"> -&gt; </span>_/<span class="Constant">ebx</span>: int <span class="Delimiter">{</span> <span id="L15" class="LineNr"> 15 </span> <span class="muComment"># data structure</span> <span id="L16" class="LineNr"> 16 </span> <span class="PreProc">var</span> numbers-storage: (array int <span class="Constant">0x100</span>) <span class="muComment"># 256 ints</span> <span id="L17" class="LineNr"> 17 </span> <span class="PreProc">var</span> numbers/<span class="Constant">esi</span>: (addr array int) <span class="SpecialChar">&lt;-</span> address numbers-storage <span id="L18" class="LineNr"> 18 </span> <span class="PreProc">var</span> numbers-index/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span> <span id="L19" class="LineNr"> 19 </span> <span class="muComment"># phase 1: parse each line from stdin and add it to numbers</span> <span id="L20" class="LineNr"> 20 </span> <span class="Delimiter">{</span> <span id="L21" class="LineNr"> 21 </span> <span class="PreProc">var</span> line-storage: (stream byte <span class="Constant">0x100</span>) <span class="muComment"># 256 bytes</span> <span id="L22" class="LineNr"> 22 </span> <span class="PreProc">var</span> line/<span class="Constant">edx</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address line-storage <span id="L23" class="LineNr"> 23 </span> <span class="Delimiter">{</span> <span id="L24" class="LineNr"> 24 </span><span class="CommentedCode">#? print-string 0, &quot;== iter\n&quot;</span> <span id="L25" class="LineNr"> 25 </span> <span class="muComment"># read line from stdin</span> <span id="L26" class="LineNr"> 26 </span> <a href='../../106stream.subx.html#L17'>clear-stream</a> line <span id="L27" class="LineNr"> 27 </span> <a href='../../305keyboard.subx.html#L158'>read-line-from-real-keyboard</a> line <span id="L28" class="LineNr"> 28 </span> <span class="muComment"># if line is empty (not even a newline), quit</span> <span id="L29" class="LineNr"> 29 </span> <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='../../309stream.subx.html#L6'>stream-empty?</a> line <span id="L30" class="LineNr"> 30 </span> compare done?, <span class="Constant">0</span> <span class="muComment"># false</span> <span id="L31" class="LineNr"> 31 </span> <span class="PreProc">break-if-!=</span> <span id="L32" class="LineNr"> 32 </span><span class="CommentedCode">#? print-stream-to-real-screen line</span> <span id="L33" class="LineNr"> 33 </span> <span class="muComment"># convert line to int and append it to numbers</span> <span id="L34" class="LineNr"> 34 </span> <span class="PreProc">var</span> n/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='../../311decimal-int.subx.html#L48'>parse-decimal-int-from-stream</a> line <span id="L35" class="LineNr"> 35 </span><span class="CommentedCode">#? print-int32-decimal 0, n</span> <span id="L36" class="LineNr"> 36 </span><span class="CommentedCode">#? print-string 0, &quot;\n&quot;</span> <span id="L37" class="LineNr"> 37 </span> <span class="PreProc">var</span> dest/<span class="Constant">ebx</span>: (addr int) <span class="SpecialChar">&lt;-</span> index numbers, numbers-index <span id="L38" class="LineNr"> 38 </span> copy-to *dest, n <span id="L39" class="LineNr"> 39 </span> numbers-index <span class="SpecialChar">&lt;-</span> increment <span id="L40" class="LineNr"> 40 </span><span class="CommentedCode">#? print-string 0, &quot;== &quot;</span> <span id="L41" class="LineNr"> 41 </span><span class="CommentedCode">#? print-int32-decimal 0, numbers-index</span> <span id="L42" class="LineNr"> 42 </span><span class="CommentedCode">#? print-string 0, &quot;\n&quot;</span> <span id="L43" class="LineNr"> 43 </span> <span class="PreProc">loop</span> <span id="L44" class="LineNr"> 44 </span> <span class="Delimiter">}</span> <span id="L45" class="LineNr"> 45 </span> <span class="Delimiter">}</span> <span id="L46" class="LineNr"> 46 </span> <span class="muComment"># phase 2: for every pair of distinct numbers, check if the rest of the</span> <span id="L47" class="LineNr"> 47 </span> <span class="muComment"># array has 2020-it</span> <span id="L48" class="LineNr"> 48 </span> <span class="PreProc">var</span> i/<span class="Constant">edi</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span> <span id="L49" class="LineNr"> 49 </span> <span class="Delimiter">{</span> <span id="L50" class="LineNr"> 50 </span> compare i, numbers-index <span id="L51" class="LineNr"> 51 </span> <span class="PreProc">break-if-&gt;=</span> <span id="L52" class="LineNr"> 52 </span> <span class="muComment"># for j from i+1 to end</span> <span id="L53" class="LineNr"> 53 </span> <span class="PreProc">var</span> j/<span class="Constant">edx</span>: int <span class="SpecialChar">&lt;-</span> copy i <span id="L54" class="LineNr"> 54 </span> j <span class="SpecialChar">&lt;-</span> increment <span id="L55" class="LineNr"> 55 </span> <span class="Delimiter">{</span> <span id="L56" class="LineNr"> 56 </span> compare j, numbers-index <span id="L57" class="LineNr"> 57 </span> <span class="PreProc">break-if-&gt;=</span> <span id="L58" class="LineNr"> 58 </span> <span class="Delimiter">{</span> <span id="L59" class="LineNr"> 59 </span> compare i, j <span id="L60" class="LineNr"> 60 </span> <span class="PreProc">break-if-=</span> <span id="L61" class="LineNr"> 61 </span> <span class="PreProc">var</span> target/<span class="Constant">ebx</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0x7e4</span> <span class="muComment"># 2020</span> <span id="L62" class="LineNr"> 62 </span> <span class="PreProc">var</span> src/<span class="Constant">edi</span>: (addr int) <span class="SpecialChar">&lt;-</span> index numbers, i <span id="L63" class="LineNr"> 63 </span> target <span class="SpecialChar">&lt;-</span> subtract *src <span id="L64" class="LineNr"> 64 </span> <span class="PreProc">var</span> src2/<span class="Constant">ecx</span>: (addr int) <span class="SpecialChar">&lt;-</span> index numbers, j <span id="L65" class="LineNr"> 65 </span> target <span class="SpecialChar">&lt;-</span> subtract *src2 <span id="L66" class="LineNr"> 66 </span> <span class="Delimiter">{</span> <span id="L67" class="LineNr"> 67 </span> <span class="PreProc">var</span> found?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> find-after numbers, j, target <span id="L68" class="LineNr"> 68 </span> compare found?, <span class="Constant">0</span> <span class="muComment"># false</span> <span id="L69" class="LineNr"> 69 </span> <span class="PreProc">break-if-=</span> <span id="L70" class="LineNr"> 70 </span> <a href='../../405screen.mu.html#L169'>print-string</a> <span class="Constant">0</span>, <span class="Constant">&quot;found\n&quot;</span> <span id="L71" class="LineNr"> 71 </span> <a href='../../405screen.mu.html#L480'>print-int32-decimal</a> <span class="Constant">0</span>, *src <span id="L72" class="LineNr"> 72 </span> <a href='../../405screen.mu.html#L169'>print-string</a> <span class="Constant">0</span>, <span class="Constant">&quot; &quot;</span> <span id="L73" class="LineNr"> 73 </span> <a href='../../405screen.mu.html#L480'>print-int32-decimal</a> <span class="Constant">0</span>, *src2 <span id="L74" class="LineNr"> 74 </span> <a href='../../405screen.mu.html#L169'>print-string</a> <span class="Constant">0</span>, <span class="Constant">&quot; &quot;</span> <span id="L75" class="LineNr"> 75 </span> <a href='../../405screen.mu.html#L480'>print-int32-decimal</a> <span class="Constant">0</span>, target <span id="L76" class="LineNr"> 76 </span> <a href='../../405screen.mu.html#L169'>print-string</a> <span class="Constant">0</span>, <span class="Constant">&quot;\n&quot;</span> <span id="L77" class="LineNr"> 77 </span> target <span class="SpecialChar">&lt;-</span> multiply *src <span id="L78" class="LineNr"> 78 </span> target <span class="SpecialChar">&lt;-</span> multiply *src2 <span id="L79" class="LineNr"> 79 </span> <a href='../../405screen.mu.html#L480'>print-int32-decimal</a> <span class="Constant">0</span>, target <span id="L80" class="LineNr"> 80 </span> <a href='../../405screen.mu.html#L169'>print-string</a> <span class="Constant">0</span>, <span class="Constant">&quot;\n&quot;</span> <span id="L81" class="LineNr"> 81 </span> <span class="PreProc">return</span> <span class="Constant">0</span> <span class="muComment"># success</span> <span id="L82" class="LineNr"> 82 </span> <span class="Delimiter">}</span> <span id="L83" class="LineNr"> 83 </span> <span class="Delimiter">}</span> <span id="L84" class="LineNr"> 84 </span> j <span class="SpecialChar">&lt;-</span> increment <span id="L85" class="LineNr"> 85 </span> <span class="PreProc">loop</span> <span id="L86" class="LineNr"> 86 </span> <span class="Delimiter">}</span> <span id="L87" class="LineNr"> 87 </span> i <span class="SpecialChar">&lt;-</span> increment <span id="L88" class="LineNr"> 88 </span> <span class="PreProc">loop</span> <span id="L89" class="LineNr"> 89 </span> <span class="Delimiter">}</span> <span id="L90" class="LineNr"> 90 </span> <span class="PreProc">return</span> <span class="Constant">1</span> <span class="muComment"># not found</span> <span id="L91" class="LineNr"> 91 </span><span class="Delimiter">}</span> <span id="L92" class="LineNr"> 92 </span> <span id="L93" class="LineNr"> 93 </span><span class="PreProc">fn</span> <span class="muFunction">find-after</span> _numbers: (addr array int), start: int, _target: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span> <span id="L94" class="LineNr"> 94 </span> <span class="PreProc">var</span> numbers/<span class="Constant">esi</span>: (addr array int) <span class="SpecialChar">&lt;-</span> copy _numbers <span id="L95" class="LineNr"> 95 </span> <span class="PreProc">var</span> target/<span class="Constant">edi</span>: int <span class="SpecialChar">&lt;-</span> copy _target <span id="L96" class="LineNr"> 96 </span> <span class="PreProc">var</span> len/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> length numbers <span id="L97" class="LineNr"> 97 </span> <span class="PreProc">var</span> i/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy start <span id="L98" class="LineNr"> 98 </span> i <span class="SpecialChar">&lt;-</span> increment <span id="L99" class="LineNr"> 99 </span> <span class="Delimiter">{</span> <span id="L100" class="LineNr">100 </span> compare i, len <span id="L101" class="LineNr">101 </span> <span class="PreProc">break-if-&gt;=</span> <span id="L102" class="LineNr">102 </span> <span class="PreProc">var</span> src/<span class="Constant">edx</span>: (addr int) <span class="SpecialChar">&lt;-</span> index numbers, i <span id="L103" class="LineNr">103 </span> <span class="muComment"># if *src == target, return true</span> <span id="L104" class="LineNr">104 </span> compare *src, target <span id="L105" class="LineNr">105 </span> <span class="Delimiter">{</span> <span id="L106" class="LineNr">106 </span> <span class="PreProc">break-if-!=</span> <span id="L107" class="LineNr">107 </span> <span class="PreProc">return</span> <span class="Constant">1</span> <span class="muComment"># true</span> <span id="L108" class="LineNr">108 </span> <span class="Delimiter">}</span> <span id="L109" class="LineNr">109 </span> i <span class="SpecialChar">&lt;-</span> increment <span id="L110" class="LineNr">110 </span> <span class="PreProc">loop</span> <span id="L111" class="LineNr">111 </span> <span class="Delimiter">}</span> <span id="L112" class="LineNr">112 </span> <span class="PreProc">return</span> <span class="Constant">0</span> <span class="muComment"># false</span> <span id="L113" class="LineNr">113 </span><span class="Delimiter">}</span> </pre> </body> </html> <!-- vim: set foldmethod=manual : -->