summaryrefslogtreecommitdiff
path: root/docs/module-doc/classFileReader.html
blob: d966d1e3acbd4f9db37a4184e5b85bc9e05f099d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
<!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#l00879">879</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">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <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>

      </table>
    </td>
  </tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
  <tr>
    <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#l00828">828</a> of file <a class="el" href="modules_8cpp-source.html">modules.cpp</a>.
<p>
<div class="fragment"><pre>00829 {
00830 }
</pre></div>    </td>
  </tr>
</table>
<a name="a1" doxytag="FileReader::FileReader"></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
  <tr>
    <td class="mdRow">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <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>

      </table>
    </td>
  </tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
  <tr>
    <td>
      &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#l00821">821</a> of file <a class="el" href="modules_8cpp-source.html">modules.cpp</a>.
<p>
References <a class="el" href="modules_8h-source.html#l00881">fc</a>, and <a class="el" href="modules_8h-source.html#l00067">file_cache</a>.
<p>
<div class="fragment"><pre>00822 {
00823         <a class="code" href="modules_8h.html#a31">file_cache</a> c;
00824         readfile(c,filename.c_str());
00825         this-&gt;<a class="code" href="classFileReader.html#r0">fc</a> = c;
00826 }
</pre></div>    </td>
  </tr>
</table>
<a name="a2" doxytag="FileReader::~FileReader"></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
  <tr>
    <td class="mdRow">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <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>
</table>
<table cellspacing=5 cellpadding=0 border=0>
  <tr>
    <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#l00840">840</a> of file <a class="el" href="modules_8cpp-source.html">modules.cpp</a>.
<p>
<div class="fragment"><pre>00841 {
00842 }
</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">
  <tr>
    <td class="mdRow">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <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>
  </tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
  <tr>
    <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#l00844">844</a> of file <a class="el" href="modules_8cpp-source.html">modules.cpp</a>.
<p>
References <a class="el" href="modules_8h-source.html#l00881">fc</a>.
<p>
<div class="fragment"><pre>00845 {
00846         <span class="keywordflow">if</span> (<a class="code" href="classFileReader.html#r0">fc</a>.size() == 0)
00847         {
00848                 <span class="keywordflow">return</span>(<span class="keyword">false</span>);
00849         }
00850         <span class="keywordflow">else</span>
00851         {
00852                 <span class="keywordflow">return</span>(<span class="keyword">true</span>);
00853         }
00854 }
</pre></div>    </td>
  </tr>
</table>
<a name="a6" doxytag="FileReader::FileSize"></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
  <tr>
    <td class="mdRow">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <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>

      </table>
    </td>
  </tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
  <tr>
    <td>
      &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#l00863">863</a> of file <a class="el" href="modules_8cpp-source.html">modules.cpp</a>.
<p>
References <a class="el" href="modules_8h-source.html#l00881">fc</a>.
<p>
<div class="fragment"><pre>00864 {
00865         <span class="keywordflow">return</span> <a class="code" href="classFileReader.html#r0">fc</a>.size();
00866 }
</pre></div>    </td>
  </tr>
</table>
<a name="a5" doxytag="FileReader::GetLine"></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
  <tr>
    <td class="mdRow">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <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>

      </table>
    </td>
  </tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
  <tr>
    <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#l00856">856</a> of file <a class="el" href="modules_8cpp-source.html">modules.cpp</a>.
<p>
References <a class="el" href="modules_8h-source.html#l00881">fc</a>.
<p>
<div class="fragment"><pre>00857 {
00858         <span class="keywordflow">if</span> ((x&lt;0) || (x&gt;<a class="code" href="classFileReader.html#r0">fc</a>.size()))
00859                 <span class="keywordflow">return</span> <span class="stringliteral">""</span>;
00860         <span class="keywordflow">return</span> <a class="code" href="classFileReader.html#r0">fc</a>[x];
00861 }
</pre></div>    </td>
  </tr>
</table>
<a name="a3" doxytag="FileReader::LoadFile"></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
  <tr>
    <td class="mdRow">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <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>

      </table>
    </td>
  </tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
  <tr>
    <td>
      &nbsp;
    </td>
    <td>

<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#l00832">832</a> of file <a class="el" href="modules_8cpp-source.html">modules.cpp</a>.
<p>
References <a class="el" href="modules_8h-source.html#l00881">fc</a>, and <a class="el" href="modules_8h-source.html#l00067">file_cache</a>.
<p>
<div class="fragment"><pre>00833 {
00834         <a class="code" href="modules_8h.html#a31">file_cache</a> c;
00835         readfile(c,filename.c_str());
00836         this-&gt;<a class="code" href="classFileReader.html#r0">fc</a> = c;
00837 }
</pre></div>    </td>
  </tr>
</table>
<hr><h2>Member Data Documentation</h2>
<a name="r0" doxytag="FileReader::fc"></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
  <tr>
    <td class="mdRow">
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <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>
  </tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
  <tr>
    <td>
      &nbsp;
    </td>
    <td>

<p>

<p>
Definition at line <a class="el" href="modules_8h-source.html#l00881">881</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#l00844">Exists()</a>, <a class="el" href="modules_8cpp-source.html#l00821">FileReader()</a>, <a class="el" href="modules_8cpp-source.html#l00863">FileSize()</a>, <a class="el" href="modules_8cpp-source.html#l00856">GetLine()</a>, and <a class="el" href="modules_8cpp-source.html#l00832">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>
<hr size="1"><address style="align: right;"><small>Generated on Wed Apr 13 13:07:04 2005 for InspIRCd by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border=0 > 
</a>1.3.3 </small></address>
</body>
</html>