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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1">
<title>InspIRCd: FileReader class Reference</title>
<link href="inspircd.css" rel="stylesheet" type="text/css">
</head><body>
<!-- Generated by Doxygen 1.3.3 -->
<div class="qindex"><a class="qindex" href="main.html">Main&nbsp;Page</a> | <a class="qindex" href="namespaces.html">Namespace List</a> | <a class="qindex" href="hierarchy.html">Class&nbsp;Hierarchy</a> | <a class="qindex" href="classes.html">Alphabetical&nbsp;List</a> | <a class="qindex" href="annotated.html">Compound&nbsp;List</a> | <a class="qindex" href="files.html">File&nbsp;List</a> | <a class="qindex" href="functions.html">Compound&nbsp;Members</a> | <a class="qindex" href="globals.html">File&nbsp;Members</a></div>
<h1>FileReader Class Reference</h1>Caches a text file into memory and can be used to retrieve lines from it.  
<a href="#_details">More...</a>
<p>
<code>#include &lt;<a class="el" href="modules_8h-source.html">modules.h</a>&gt;</code>
<p>
Inherits <a class="el" href="classclassbase.html">classbase</a>.
<p>
<a href="classFileReader-members.html">List of all members.</a><table border=0 cellpadding=0 cellspacing=0>
<tr><td></td></tr>
<tr><td colspan=2><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="classFileReader.html#a0">FileReader</a> ()</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Default constructor. </em> <a href="#a0"></a><em><br><br></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="classFileReader.html#a1">FileReader</a> (std::string filename)</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Secondary constructor. </em> <a href="#a1"></a><em><br><br></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="classFileReader.html#a2">~FileReader</a> ()</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Default destructor. </em> <a href="#a2"></a><em><br><br></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="classFileReader.html#a3">LoadFile</a> (std::string filename)</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Used to load a file. </em> <a href="#a3"></a><em><br><br></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>bool&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="classFileReader.html#a4">Exists</a> ()</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Returns true if the file exists This function will return false if the file could not be opened. </em> <a href="#a4"></a><em><br><br></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>std::string&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="classFileReader.html#a5">GetLine</a> (int x)</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Retrieve one line from the file. </em> <a href="#a5"></a><em><br><br></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>int&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="classFileReader.html#a6">FileSize</a> ()</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Returns the size of the file in lines. </em> <a href="#a6"></a><em><br><br></td></tr>
<tr><td colspan=2><br><h2>Private Attributes</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top><a class="el" href="modules_8h.html#a31">file_cache</a>&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="classFileReader.html#r0">fc</a></td></tr>

</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
Caches a text file into memory and can be used to retrieve lines from it. 
<p>
This class contains methods for read-only manipulation of a text file in memory. Either use the constructor type with one parameter to load a file into memory at construction, or use the LoadFile method to load a file. 
<p>

<p>
Definition at line <a class="el" href="modules_8h-source.html#l01186">1186</a> of file <a class="el" href="modules_8h-source.html">modules.h</a>.<hr><h2>Constructor &amp; Destructor Documentation</h2>
<a name="a0" doxytag="FileReader::FileReader"></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
  <tr>
    <td class="mdRow">
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          <td class="md" nowrap valign="top"> FileReader::FileReader </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap></td>
        </tr>

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    <td>
      &nbsp;
    </td>
    <td>

<p>
Default constructor. 
<p>
This method does not load any file into memory, you must use the LoadFile method after constructing the class this way.
<p>
Definition at line <a class="el" href="modules_8cpp-source.html#l00988">988</a> of file <a class="el" href="modules_8cpp-source.html">modules.cpp</a>.
<p>
<div class="fragment"><pre>00989 {
00990 }
</pre></div>    </td>
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<a name="a1" doxytag="FileReader::FileReader"></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
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          <td class="md" nowrap valign="top"> FileReader::FileReader </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">std::string&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>filename</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap></td>
        </tr>

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      &nbsp;
    </td>
    <td>

<p>
Secondary constructor. 
<p>
This method initialises the class with a file loaded into it ready for GetLine and and other methods to be called. If the file could not be loaded, <a class="el" href="classFileReader.html#a6">FileReader::FileSize</a> returns 0.
<p>
Definition at line <a class="el" href="modules_8cpp-source.html#l00981">981</a> of file <a class="el" href="modules_8cpp-source.html">modules.cpp</a>.
<p>
References <a class="el" href="modules_8h-source.html#l01188">fc</a>, and <a class="el" href="modules_8h-source.html#l00067">file_cache</a>.
<p>
<div class="fragment"><pre>00982 {
00983         <a class="code" href="modules_8h.html#a31">file_cache</a> c;
00984         readfile(c,filename.c_str());
00985         this-&gt;<a class="code" href="classFileReader.html#r0">fc</a> = c;
00986 }
</pre></div>    </td>
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<a name="a2" doxytag="FileReader::~FileReader"></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
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          <td class="md" nowrap valign="top"> FileReader::~<a class="el" href="classFileReader.html">FileReader</a> </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap></td>
        </tr>

      </table>
    </td>
  </tr>
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    <td>
      &nbsp;
    </td>
    <td>

<p>
Default destructor. 
<p>
This deletes the memory allocated to the file.
<p>
Definition at line <a class="el" href="modules_8cpp-source.html#l01000">1000</a> of file <a class="el" href="modules_8cpp-source.html">modules.cpp</a>.
<p>
<div class="fragment"><pre>01001 {
01002 }
</pre></div>    </td>
  </tr>
</table>
<hr><h2>Member Function Documentation</h2>
<a name="a4" doxytag="FileReader::Exists"></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
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          <td class="md" nowrap valign="top"> bool FileReader::Exists </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap></td>
        </tr>

      </table>
    </td>
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</table>
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    <td>
      &nbsp;
    </td>
    <td>

<p>
Returns true if the file exists This function will return false if the file could not be opened. 
<p>

<p>
Definition at line <a class="el" href="modules_8cpp-source.html#l01004">1004</a> of file <a class="el" href="modules_8cpp-source.html">modules.cpp</a>.
<p>
References <a class="el" href="modules_8h-source.html#l01188">fc</a>.
<p>
<div class="fragment"><pre>01005 {
01006         <span class="keywordflow">if</span> (<a class="code" href="classFileReader.html#r0">fc</a>.size() == 0)
01007         {
01008                 <span class="keywordflow">return</span>(<span class="keyword">false</span>);
01009         }
01010         <span class="keywordflow">else</span>
01011         {
01012                 <span class="keywordflow">return</span>(<span class="keyword">true</span>);
01013         }
01014 }
</pre></div>    </td>
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</table>
<a name="a6" doxytag="FileReader::FileSize"></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
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          <td class="md" nowrap valign="top"> int FileReader::FileSize </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap></td>
        </tr>

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      &nbsp;
    </td>
    <td>

<p>
Returns the size of the file in lines. 
<p>
This method returns the number of lines in the read file. If it is 0, no lines have been read into memory, either because the file is empty or it does not exist, or cannot be opened due to permission problems.
<p>
Definition at line <a class="el" href="modules_8cpp-source.html#l01023">1023</a> of file <a class="el" href="modules_8cpp-source.html">modules.cpp</a>.
<p>
References <a class="el" href="modules_8h-source.html#l01188">fc</a>.
<p>
<div class="fragment"><pre>01024 {
01025         <span class="keywordflow">return</span> <a class="code" href="classFileReader.html#r0">fc</a>.size();
01026 }
</pre></div>    </td>
  </tr>
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<a name="a5" doxytag="FileReader::GetLine"></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
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          <td class="md" nowrap valign="top"> std::string FileReader::GetLine </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">int&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>x</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap></td>
        </tr>

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    </td>
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    <td>
      &nbsp;
    </td>
    <td>

<p>
Retrieve one line from the file. 
<p>
This method retrieves one line from the text file. If an empty non-NULL string is returned, the index was out of bounds, or the line had no data on it.
<p>
Definition at line <a class="el" href="modules_8cpp-source.html#l01016">1016</a> of file <a class="el" href="modules_8cpp-source.html">modules.cpp</a>.
<p>
References <a class="el" href="modules_8h-source.html#l01188">fc</a>.
<p>
<div class="fragment"><pre>01017 {
01018         <span class="keywordflow">if</span> ((x&lt;0) || (x&gt;<a class="code" href="classFileReader.html#r0">fc</a>.size()))
01019                 <span class="keywordflow">return</span> <span class="stringliteral">""</span>;
01020         <span class="keywordflow">return</span> <a class="code" href="classFileReader.html#r0">fc</a>[x];
01021 }
</pre></div>    </td>
  </tr>
</table>
<a name="a3" doxytag="FileReader::LoadFile"></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
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          <td class="md" nowrap valign="top"> void FileReader::LoadFile </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">std::string&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>filename</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap></td>
        </tr>

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      &nbsp;
    </td>
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<p>
Used to load a file. 
<p>
This method loads a file into the class ready for GetLine and and other methods to be called. If the file could not be loaded, <a class="el" href="classFileReader.html#a6">FileReader::FileSize</a> returns 0.
<p>
Definition at line <a class="el" href="modules_8cpp-source.html#l00992">992</a> of file <a class="el" href="modules_8cpp-source.html">modules.cpp</a>.
<p>
References <a class="el" href="modules_8h-source.html#l01188">fc</a>, and <a class="el" href="modules_8h-source.html#l00067">file_cache</a>.
<p>
<div class="fragment"><pre>00993 {
00994         <a class="code" href="modules_8h.html#a31">file_cache</a> c;
00995         readfile(c,filename.c_str());
00996         this-&gt;<a class="code" href="classFileReader.html#r0">fc</a> = c;
00997 }
</pre></div>    </td>
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<hr><h2>Member Data Documentation</h2>
<a name="r0" doxytag="FileReader::fc"></a><p>
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          <td class="md" nowrap valign="top"> <a class="el" href="modules_8h.html#a31">file_cache</a> <a class="el" href="classFileReader.html#r0">FileReader::fc</a><code> [private]</code>
      </table>
    </td>
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      &nbsp;
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<p>

<p>
Definition at line <a class="el" href="modules_8h-source.html#l01188">1188</a> of file <a class="el" href="modules_8h-source.html">modules.h</a>.
<p>
Referenced by <a class="el" href="modules_8cpp-source.html#l01004">Exists()</a>, <a class="el" href="modules_8cpp-source.html#l00981">FileReader()</a>, <a class="el" href="modules_8cpp-source.html#l01023">FileSize()</a>, <a class="el" href="modules_8cpp-source.html#l01016">GetLine()</a>, and <a class="el" href="modules_8cpp-source.html#l00992">LoadFile()</a>.    </td>
  </tr>
</table>
<hr>The documentation for this class was generated from the following files:<ul>
<li><a class="el" href="modules_8h-source.html">modules.h</a><li><a class="el" href="modules_8cpp-source.html">modules.cpp</a></ul>
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