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<a href="lineend_8h.shtml">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/**********************************************************************</span>
<a name="l00002"></a>00002 <span class="comment">lineend.h - Stream buffer for filtering line endings, converting \r or \r\n -> \n</span>
<a name="l00003"></a>00003 <span class="comment"></span>
<a name="l00004"></a>00004 <span class="comment"> Copyright (C) 1998 by James Kanze</span>
<a name="l00005"></a>00005 <span class="comment"> Copyright (C) 2007 by Chris Morley</span>
<a name="l00006"></a>00006 <span class="comment"></span>
<a name="l00007"></a>00007 <span class="comment">This file is part of the Open Babel project.</span>
<a name="l00008"></a>00008 <span class="comment">For more information, see <http://openbabel.org/></span>
<a name="l00009"></a>00009 <span class="comment"></span>
<a name="l00010"></a>00010 <span class="comment">This program is free software; you can redistribute it and/or modify</span>
<a name="l00011"></a>00011 <span class="comment">it under the terms of the GNU General Public License as published by</span>
<a name="l00012"></a>00012 <span class="comment">the Free Software Foundation version 2 of the License.</span>
<a name="l00013"></a>00013 <span class="comment"></span>
<a name="l00014"></a>00014 <span class="comment">This program is distributed in the hope that it will be useful, but</span>
<a name="l00015"></a>00015 <span class="comment">WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00016"></a>00016 <span class="comment">MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
<a name="l00017"></a>00017 <span class="comment">General Public License for more details.</span>
<a name="l00018"></a>00018 <span class="comment">***********************************************************************/</span>
<a name="l00019"></a>00019
<a name="l00020"></a>00020 <span class="preprocessor">#ifndef OB_LINEEND_H</span>
<a name="l00021"></a>00021 <span class="preprocessor"></span><span class="preprocessor">#define OB_LINEEND_H</span>
<a name="l00022"></a>00022 <span class="preprocessor"></span>
<a name="l00023"></a>00023 <span class="preprocessor">#include <streambuf></span>
<a name="l00024"></a>00024 <span class="preprocessor">#include <climits></span>
<a name="l00025"></a>00025
<a name="l00026"></a>00026 <span class="preprocessor">#ifndef OBCONV</span>
<a name="l00027"></a>00027 <span class="preprocessor"></span><span class="preprocessor">#define OBCONV</span>
<a name="l00028"></a>00028 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00029"></a>00029 <span class="preprocessor"></span>
<a name="l00030"></a>00030 <span class="keyword">namespace </span>OpenBabel
<a name="l00031"></a>00031 {
<a name="l00032"></a>00032
<a name="l00058"></a>00058 <span class="keyword">template</span>< <span class="keyword">class</span> Extractor >
<a name="l00059"></a><a class="code" href="classOpenBabel_1_1FilteringInputStreambuf.shtml">00059</a> <span class="keyword">class </span><a class="code" href="classOpenBabel_1_1FilteringInputStreambuf.shtml" title="Delivers characters from an istream or streambuf from a source while filtering.">FilteringInputStreambuf</a> : <span class="keyword">public</span> std::streambuf
<a name="l00060"></a>00060 {
<a name="l00061"></a>00061 <span class="keyword">public</span>:
<a name="l00062"></a>00062 <a class="code" href="classOpenBabel_1_1FilteringInputStreambuf.shtml#a5286eeeb41318332c62b76dbf0f05430">FilteringInputStreambuf</a>(
<a name="l00063"></a>00063 std::streambuf* source = NULL ,
<a name="l00064"></a>00064 <span class="keywordtype">bool</span> deleteWhenFinished = <span class="keyword">false</span>
<a name="l00065"></a>00065 ) ;
<a name="l00066"></a><a class="code" href="classOpenBabel_1_1FilteringInputStreambuf.shtml#a848f7550d0280c87631b47f76c715013">00066</a> <span class="keyword">virtual</span> <a class="code" href="classOpenBabel_1_1FilteringInputStreambuf.shtml#a848f7550d0280c87631b47f76c715013">~FilteringInputStreambuf</a>()
<a name="l00067"></a>00067 {
<a name="l00068"></a>00068 <span class="comment">//sync(); comment out so can be deleted in OBConversion destructor</span>
<a name="l00069"></a>00069 };
<a name="l00070"></a><a class="code" href="classOpenBabel_1_1FilteringInputStreambuf.shtml#a71cbc6b1ec560d3788dac4c02e9328da">00070</a> <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code" href="classOpenBabel_1_1FilteringInputStreambuf.shtml#a71cbc6b1ec560d3788dac4c02e9328da">overflow</a>( <span class="keywordtype">int</span> ) {<span class="keywordflow">return</span> EOF;};
<a name="l00071"></a>00071 <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code" href="classOpenBabel_1_1FilteringInputStreambuf.shtml#a175cdf589e167db22f30ccacdf98e007">underflow</a>() ;
<a name="l00072"></a>00072 <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code" href="classOpenBabel_1_1FilteringInputStreambuf.shtml#a553fc1343cc7a747775864d1d124a5d5">sync</a>() ;
<a name="l00073"></a>00073
<a name="l00074"></a>00074 <span class="comment">//Pass the random acess functions to the source rdbuf and synchronize</span>
<a name="l00075"></a><a class="code" href="classOpenBabel_1_1FilteringInputStreambuf.shtml#aea680f1e3476af107476e375aaac4b6d">00075</a> <span class="keyword">virtual</span> std::streampos <a class="code" href="classOpenBabel_1_1FilteringInputStreambuf.shtml#aea680f1e3476af107476e375aaac4b6d">seekoff</a>(std::streamoff off, std::ios_base::seekdir way,
<a name="l00076"></a>00076 std::ios_base::openmode which = std::ios_base::in | std::ios_base::out )
<a name="l00077"></a>00077 {
<a name="l00078"></a>00078 std::streampos ret = mySource->pubseekoff(off, way, which);
<a name="l00079"></a>00079 <span class="comment">// sync();</span>
<a name="l00080"></a>00080 <span class="keywordflow">return</span> ret;
<a name="l00081"></a>00081 };
<a name="l00082"></a>00082
<a name="l00083"></a><a class="code" href="classOpenBabel_1_1FilteringInputStreambuf.shtml#a9f073109a0b2c593a7c63967869c366d">00083</a> <span class="keyword">virtual</span> std::streampos <a class="code" href="classOpenBabel_1_1FilteringInputStreambuf.shtml#a9f073109a0b2c593a7c63967869c366d">seekpos</a>(std::streampos sp,
<a name="l00084"></a>00084 std::ios_base::openmode which = std::ios_base::in | std::ios_base::out )
<a name="l00085"></a>00085 {
<a name="l00086"></a>00086 std::streampos ret = mySource->pubseekpos(sp, which);
<a name="l00087"></a>00087 <span class="comment">// sync();</span>
<a name="l00088"></a>00088 <span class="keywordflow">return</span> ret;
<a name="l00089"></a>00089 };
<a name="l00090"></a>00090
<a name="l00092"></a><a class="code" href="classOpenBabel_1_1FilteringInputStreambuf.shtml#aaa1ca82e0fba738f10a36f892007a114">00092</a> std::streambuf* <a class="code" href="classOpenBabel_1_1FilteringInputStreambuf.shtml#aaa1ca82e0fba738f10a36f892007a114" title="Returns current source.">GetSource</a>()<span class="keyword">const</span>
<a name="l00093"></a>00093 <span class="keyword"> </span>{
<a name="l00094"></a>00094 <span class="keywordflow">return</span> mySource;
<a name="l00095"></a>00095 };
<a name="l00096"></a>00096
<a name="l00098"></a><a class="code" href="classOpenBabel_1_1FilteringInputStreambuf.shtml#ab8629df5351a87a231c5e95e5518dc4b">00098</a> <span class="keywordtype">void</span> <a class="code" href="classOpenBabel_1_1FilteringInputStreambuf.shtml#ab8629df5351a87a231c5e95e5518dc4b" title="Changes the source.">SetSource</a>(std::streambuf* newsource)
<a name="l00099"></a>00099 {
<a name="l00100"></a>00100 mySource = newsource;
<a name="l00101"></a>00101 setg( &myBuffer , &myBuffer , &myBuffer + 1 ) ;
<a name="l00102"></a>00102 }
<a name="l00103"></a>00103
<a name="l00104"></a>00104 <span class="comment">// Extractor& extractor() {return myExtractor;};</span>
<a name="l00105"></a>00105
<a name="l00106"></a>00106 <span class="keyword">private</span>:
<a name="l00107"></a>00107 std::streambuf* mySource ;
<a name="l00108"></a>00108 Extractor myExtractor ;
<a name="l00109"></a>00109 <span class="keywordtype">char</span> myBuffer ;
<a name="l00110"></a>00110 <span class="keywordtype">bool</span> myDeleteWhenFinished ;
<a name="l00111"></a>00111 } ;
<a name="l00112"></a>00112
<a name="l00113"></a>00113 <span class="comment">//*******************************************************</span>
<a name="l00114"></a>00114 <span class="keyword">template</span>< <span class="keyword">class</span> Extractor >
<a name="l00115"></a><a class="code" href="classOpenBabel_1_1FilteringInputStreambuf.shtml#a5286eeeb41318332c62b76dbf0f05430">00115</a> <a class="code" href="classOpenBabel_1_1FilteringInputStreambuf.shtml#a5286eeeb41318332c62b76dbf0f05430">FilteringInputStreambuf< Extractor >::FilteringInputStreambuf</a>(
<a name="l00116"></a>00116 std::streambuf* source ,
<a name="l00117"></a>00117 <span class="keywordtype">bool</span> deleteWhenFinished)
<a name="l00118"></a>00118 : mySource(source), myDeleteWhenFinished(deleteWhenFinished)
<a name="l00119"></a>00119 {
<a name="l00120"></a>00120 setg( &myBuffer , &myBuffer , &myBuffer ) ;
<a name="l00121"></a>00121 }
<a name="l00122"></a>00122
<a name="l00124"></a>00124 <span class="keyword">template</span>< <span class="keyword">class</span> Extractor >
<a name="l00125"></a>00125 <span class="keywordtype">int</span>
<a name="l00126"></a><a class="code" href="classOpenBabel_1_1FilteringInputStreambuf.shtml#a175cdf589e167db22f30ccacdf98e007">00126</a> <a class="code" href="classOpenBabel_1_1FilteringInputStreambuf.shtml#a175cdf589e167db22f30ccacdf98e007">FilteringInputStreambuf< Extractor >::underflow</a>()
<a name="l00127"></a>00127 {
<a name="l00128"></a>00128 <span class="keywordtype">int</span> result( EOF ) ;
<a name="l00129"></a>00129 <span class="keywordflow">if</span>( gptr() < egptr() )
<a name="l00130"></a>00130 result = *gptr() ;
<a name="l00131"></a>00131 <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( mySource != NULL )
<a name="l00132"></a>00132 {
<a name="l00133"></a>00133 result = myExtractor( *mySource ) ;
<a name="l00134"></a>00134 <span class="keywordflow">if</span> ( result != EOF )
<a name="l00135"></a>00135 {
<a name="l00136"></a>00136 <span class="keywordflow">if</span>( result < 0 || result > UCHAR_MAX )
<a name="l00137"></a>00137 std::cerr << <span class="stringliteral">"FilteringInputStreambuf error"</span> << std::endl;
<a name="l00138"></a>00138 myBuffer = result ;
<a name="l00139"></a>00139 setg( &myBuffer , &myBuffer , &myBuffer + 1 ) ;
<a name="l00140"></a>00140 }
<a name="l00141"></a>00141 }
<a name="l00142"></a>00142 <span class="keywordflow">return</span> result ;
<a name="l00143"></a>00143 }
<a name="l00144"></a>00144
<a name="l00146"></a>00146 <span class="keyword">template</span>< <span class="keyword">class</span> Extractor >
<a name="l00147"></a>00147 <span class="keywordtype">int</span>
<a name="l00148"></a><a class="code" href="classOpenBabel_1_1FilteringInputStreambuf.shtml#a553fc1343cc7a747775864d1d124a5d5">00148</a> <a class="code" href="classOpenBabel_1_1FilteringInputStreambuf.shtml#a553fc1343cc7a747775864d1d124a5d5">FilteringInputStreambuf< Extractor >::sync</a>()
<a name="l00149"></a>00149 {
<a name="l00150"></a>00150 <span class="keywordtype">int</span> result( 0 ) ;
<a name="l00151"></a>00151 <span class="keywordflow">if</span> ( mySource != NULL )
<a name="l00152"></a>00152 {
<a name="l00153"></a>00153 <span class="keywordflow">if</span> ( gptr() < egptr() )
<a name="l00154"></a>00154 {
<a name="l00155"></a>00155 result = mySource->sputbackc( *gptr() ) ;
<a name="l00156"></a>00156 setg( NULL , NULL , NULL ) ;
<a name="l00157"></a>00157 }
<a name="l00158"></a>00158 <span class="keywordflow">if</span> ( mySource->pubsync() == EOF )
<a name="l00159"></a>00159 result = EOF ;
<a name="l00160"></a>00160 }
<a name="l00161"></a>00161 <span class="keywordflow">return</span> result ;
<a name="l00162"></a>00162 }
<a name="l00163"></a>00163
<a name="l00164"></a>00164 <span class="comment">//*********************************************</span>
<a name="l00167"></a><a class="code" href="classOpenBabel_1_1LineEndingExtractor.shtml">00167</a> <span class="comment"></span><span class="keyword">class </span>OBCONV <a class="code" href="classOpenBabel_1_1LineEndingExtractor.shtml" title="Replaces CRLF (DOS) and CR (Mac OS 9) line endings by LF (POSIX)">LineEndingExtractor</a>
<a name="l00168"></a>00168 {
<a name="l00169"></a>00169 <span class="keyword">public</span>:
<a name="l00170"></a><a class="code" href="classOpenBabel_1_1LineEndingExtractor.shtml#ae1607763657353932b1be8b2909371b6">00170</a> <span class="keywordtype">int</span> operator()( std::streambuf& src )
<a name="l00171"></a>00171 {
<a name="l00172"></a>00172 <span class="keywordtype">int</span> ch( src.sbumpc() ) ;
<a name="l00173"></a>00173 <span class="keywordflow">switch</span> (ch)
<a name="l00174"></a>00174 {
<a name="l00175"></a>00175 <span class="keywordflow">case</span> 13: <span class="comment">//CR or CRLF</span>
<a name="l00176"></a>00176 <span class="keywordflow">if</span>(src.sgetc() == 10)
<a name="l00177"></a>00177 src.sbumpc(); <span class="comment">//CRLF</span>
<a name="l00178"></a>00178 <span class="comment">//fall through</span>
<a name="l00179"></a>00179 <span class="keywordflow">case</span> 10: <span class="comment">//LF</span>
<a name="l00180"></a>00180 <span class="keywordflow">return</span> <span class="charliteral">'\n'</span>;
<a name="l00181"></a>00181 <span class="keywordflow">break</span>;
<a name="l00182"></a>00182 <span class="keywordflow">default</span>:
<a name="l00183"></a>00183 <span class="keywordflow">return</span> ch;
<a name="l00184"></a>00184 }
<a name="l00185"></a>00185 }
<a name="l00186"></a><a class="code" href="classOpenBabel_1_1LineEndingExtractor.shtml#a1d0aa4bfb893ffbd31600926710db47d">00186</a> <span class="keywordtype">void</span> <a class="code" href="classOpenBabel_1_1LineEndingExtractor.shtml#a1d0aa4bfb893ffbd31600926710db47d">finalize</a>( std::streambuf& ) {}
<a name="l00187"></a>00187 };
<a name="l00188"></a>00188
<a name="l00189"></a>00189 } <span class="comment">//namespace</span>
<a name="l00190"></a>00190
<a name="l00191"></a>00191 <span class="preprocessor">#endif //OB_LINEEND_H</span>
<a name="l00192"></a>00192 <span class="preprocessor"></span>
<a name="l00193"></a>00193
</pre></div></div>
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