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<div class="title">line_buffer.cpp</div> </div>
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<a href="line__buffer_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/**********************************************************************</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">** line_buffer.cpp ****************************************************</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">***********************************************************************</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">*</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">* line_buffer - line buffer for use with read(2)</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">*</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">* Copyright (c) 2015 Alec Leamas</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">*</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">* */</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <errno.h></span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <string.h></span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include "<a class="code" href="line__buffer_8h.html">line_buffer.h</a>"</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div><div class="line"><a name="l00022"></a><span class="lineno"><a class="line" href="classLineBuffer.html#aeeb6e44909d8847341b43c99555bbf46"> 22</a></span> <span class="keywordtype">bool</span> <a class="code" href="classLineBuffer.html#aeeb6e44909d8847341b43c99555bbf46">LineBuffer::has_lines</a>()</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> {</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  <span class="keywordflow">return</span> buff.find(<span class="charliteral">'\n'</span>) != std::string::npos;</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> }</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div><div class="line"><a name="l00028"></a><span class="lineno"><a class="line" href="classLineBuffer.html#a637893678418fa0ae4517891b3f1d1c1"> 28</a></span> <span class="keywordtype">void</span> <a class="code" href="classLineBuffer.html#a637893678418fa0ae4517891b3f1d1c1">LineBuffer::append</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* input, <span class="keywordtype">size_t</span> size)</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> {</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  buff.append(input, size);</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> }</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div><div class="line"><a name="l00034"></a><span class="lineno"><a class="line" href="classLineBuffer.html#a361228fec97d5160370b9ab185e03ea6"> 34</a></span> <span class="keyword">const</span> <span class="keywordtype">char</span>* <a class="code" href="classLineBuffer.html#a361228fec97d5160370b9ab185e03ea6">LineBuffer::c_str</a>()</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> {</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keywordflow">return</span> buff.c_str();</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> }</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div><div class="line"><a name="l00040"></a><span class="lineno"><a class="line" href="classLineBuffer.html#ae5eb2bcd8c98c58df8fa525c4d498613"> 40</a></span> std::string <a class="code" href="classLineBuffer.html#ae5eb2bcd8c98c58df8fa525c4d498613">LineBuffer::get_next_line</a>()</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> {</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keywordtype">size_t</span> nl = buff.find(<span class="charliteral">'\n'</span>);</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordflow">if</span> (nl == std::string::npos)</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordflow">return</span> <span class="stringliteral">""</span>;</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  std::string line(buff.substr(0, nl + 1));</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  buff.erase(0, nl + 1);</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="comment">/* remove DOS line endings */</span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordtype">size_t</span> pos = line.rfind(<span class="stringliteral">"\r"</span>);</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordflow">if</span> (pos == line.size() - 1)</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  line.erase(pos, 1);</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordflow">return</span> line;</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> }</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> LineBuffer::LineBuffer()</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> {</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  buff = <span class="stringliteral">""</span>;</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> }</div><div class="ttc" id="classLineBuffer_html_ae5eb2bcd8c98c58df8fa525c4d498613"><div class="ttname"><a href="classLineBuffer.html#ae5eb2bcd8c98c58df8fa525c4d498613">LineBuffer::get_next_line</a></div><div class="ttdeci">std::string get_next_line()</div><div class="ttdoc">Return and remove first line in buffer, possibly "".</div><div class="ttdef"><b>Definition:</b> <a href="line__buffer_8cpp_source.html#l00040">line_buffer.cpp:40</a></div></div>
<div class="ttc" id="classLineBuffer_html_a361228fec97d5160370b9ab185e03ea6"><div class="ttname"><a href="classLineBuffer.html#a361228fec97d5160370b9ab185e03ea6">LineBuffer::c_str</a></div><div class="ttdeci">const char * c_str()</div><div class="ttdoc">Peek the complete buffer contents.</div><div class="ttdef"><b>Definition:</b> <a href="line__buffer_8cpp_source.html#l00034">line_buffer.cpp:34</a></div></div>
<div class="ttc" id="classLineBuffer_html_a637893678418fa0ae4517891b3f1d1c1"><div class="ttname"><a href="classLineBuffer.html#a637893678418fa0ae4517891b3f1d1c1">LineBuffer::append</a></div><div class="ttdeci">void append(const char *line, size_t size)</div><div class="ttdoc">Insert data in buffer.</div><div class="ttdef"><b>Definition:</b> <a href="line__buffer_8cpp_source.html#l00028">line_buffer.cpp:28</a></div></div>
<div class="ttc" id="line__buffer_8h_html"><div class="ttname"><a href="line__buffer_8h.html">line_buffer.h</a></div><div class="ttdoc">Implements the line buffer class.</div></div>
<div class="ttc" id="classLineBuffer_html_aeeb6e44909d8847341b43c99555bbf46"><div class="ttname"><a href="classLineBuffer.html#aeeb6e44909d8847341b43c99555bbf46">LineBuffer::has_lines</a></div><div class="ttdeci">bool has_lines()</div><div class="ttdoc">Check if get_next_line() returns a non-empty string.</div><div class="ttdef"><b>Definition:</b> <a href="line__buffer_8cpp_source.html#l00022">line_buffer.cpp:22</a></div></div>
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