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<div class="title">kshell.cpp</div>  </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment">    This file is part of the KDE libraries</span>
<a name="l00003"></a>00003 <span class="comment"></span>
<a name="l00004"></a>00004 <span class="comment">    Copyright (c) 2003 Oswald Buddenhagen &lt;ossi@kde.org&gt;</span>
<a name="l00005"></a>00005 <span class="comment"></span>
<a name="l00006"></a>00006 <span class="comment">    This library is free software; you can redistribute it and/or</span>
<a name="l00007"></a>00007 <span class="comment">    modify it under the terms of the GNU Library General Public</span>
<a name="l00008"></a>00008 <span class="comment">    License as published by the Free Software Foundation; either</span>
<a name="l00009"></a>00009 <span class="comment">    version 2 of the License, or (at your option) any later version.</span>
<a name="l00010"></a>00010 <span class="comment"></span>
<a name="l00011"></a>00011 <span class="comment">    This library is distributed in the hope that it will be useful,</span>
<a name="l00012"></a>00012 <span class="comment">    but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00013"></a>00013 <span class="comment">    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU</span>
<a name="l00014"></a>00014 <span class="comment">    Library General Public License for more details.</span>
<a name="l00015"></a>00015 <span class="comment"></span>
<a name="l00016"></a>00016 <span class="comment">    You should have received a copy of the GNU Library General Public License</span>
<a name="l00017"></a>00017 <span class="comment">    along with this library; see the file COPYING.LIB.  If not, write to</span>
<a name="l00018"></a>00018 <span class="comment">    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,</span>
<a name="l00019"></a>00019 <span class="comment">    Boston, MA 02110-1301, USA.</span>
<a name="l00020"></a>00020 <span class="comment">*/</span>
<a name="l00021"></a>00021 
<a name="l00022"></a>00022 <span class="preprocessor">#include &lt;kshell.h&gt;</span>
<a name="l00023"></a>00023 
<a name="l00024"></a>00024 <span class="preprocessor">#include &lt;qfile.h&gt;</span>
<a name="l00025"></a>00025 
<a name="l00026"></a>00026 <span class="preprocessor">#include &lt;stdlib.h&gt;</span>
<a name="l00027"></a>00027 <span class="preprocessor">#include &lt;pwd.h&gt;</span>
<a name="l00028"></a>00028 <span class="preprocessor">#include &lt;sys/types.h&gt;</span>
<a name="l00029"></a>00029 
<a name="l00030"></a>00030 <span class="keyword">static</span> <span class="keywordtype">int</span> fromHex( <a class="codeRef" href="qchar.html">QChar</a> c )
<a name="l00031"></a>00031 {
<a name="l00032"></a>00032     <span class="keywordflow">if</span> (c &gt;= <span class="charliteral">&#39;0&#39;</span> &amp;&amp; c &lt;= <span class="charliteral">&#39;9&#39;</span>)
<a name="l00033"></a>00033         <span class="keywordflow">return</span> c - <span class="charliteral">&#39;0&#39;</span>;
<a name="l00034"></a>00034     <span class="keywordflow">else</span> <span class="keywordflow">if</span> (c &gt;= <span class="charliteral">&#39;A&#39;</span> &amp;&amp; c &lt;= <span class="charliteral">&#39;F&#39;</span>)
<a name="l00035"></a>00035         <span class="keywordflow">return</span> c - <span class="charliteral">&#39;A&#39;</span> + 10;
<a name="l00036"></a>00036     <span class="keywordflow">else</span> <span class="keywordflow">if</span> (c &gt;= <span class="charliteral">&#39;a&#39;</span> &amp;&amp; c &lt;= <span class="charliteral">&#39;f&#39;</span>)
<a name="l00037"></a>00037         <span class="keywordflow">return</span> c - <span class="charliteral">&#39;a&#39;</span> + 10;
<a name="l00038"></a>00038     <span class="keywordflow">return</span> -1;
<a name="l00039"></a>00039 }
<a name="l00040"></a>00040 
<a name="l00041"></a>00041 <span class="keyword">inline</span> <span class="keyword">static</span> <span class="keywordtype">bool</span> isQuoteMeta( uint c )
<a name="l00042"></a>00042 {
<a name="l00043"></a>00043 <span class="preprocessor">#if 0 // it&#39;s not worth it, especially after seeing gcc&#39;s asm output ...</span>
<a name="l00044"></a>00044 <span class="preprocessor"></span>    <span class="keyword">static</span> <span class="keyword">const</span> uchar iqm[] = {
<a name="l00045"></a>00045         0x00, 0x00, 0x00, 0x00, 0x94, 0x00, 0x00, 0x00,
<a name="l00046"></a>00046         0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00
<a name="l00047"></a>00047     }; <span class="comment">// \&#39;&quot;$</span>
<a name="l00048"></a>00048     
<a name="l00049"></a>00049     <span class="keywordflow">return</span> (c &lt; <span class="keyword">sizeof</span>(iqm) * 8) &amp;&amp; (iqm[c / 8] &amp; (1 &lt;&lt; (c &amp; 7)));
<a name="l00050"></a>00050 <span class="preprocessor">#else</span>
<a name="l00051"></a>00051 <span class="preprocessor"></span>    <span class="keywordflow">return</span> c == <span class="charliteral">&#39;\\&#39;</span> || c == <span class="charliteral">&#39;\&#39;&#39;</span> || c == <span class="charliteral">&#39;&quot;&#39;</span> || c == <span class="charliteral">&#39;$&#39;</span>;
<a name="l00052"></a>00052 <span class="preprocessor">#endif</span>
<a name="l00053"></a>00053 <span class="preprocessor"></span>}
<a name="l00054"></a>00054 
<a name="l00055"></a>00055 <span class="keyword">inline</span> <span class="keyword">static</span> <span class="keywordtype">bool</span> isMeta( uint c )
<a name="l00056"></a>00056 {
<a name="l00057"></a>00057     <span class="keyword">static</span> <span class="keyword">const</span> uchar iqm[] = {
<a name="l00058"></a>00058         0x00, 0x00, 0x00, 0x00, 0xdc, 0x07, 0x00, 0xd8,
<a name="l00059"></a>00059         0x00, 0x00, 0x00, 0x10, 0x01, 0x00, 0x00, 0x38
<a name="l00060"></a>00060     }; <span class="comment">// \&#39;&quot;$`&lt;&gt;|;&amp;(){}*?#</span>
<a name="l00061"></a>00061     
<a name="l00062"></a>00062     <span class="keywordflow">return</span> (c &lt; <span class="keyword">sizeof</span>(iqm) * 8) &amp;&amp; (iqm[c / 8] &amp; (1 &lt;&lt; (c &amp; 7)));
<a name="l00063"></a>00063 }
<a name="l00064"></a>00064 
<a name="l00065"></a><a class="code" href="namespaceKShell.html#adbfb363acdf77b50dd86879fd854c4de">00065</a> <a class="codeRef" href="qstringlist.html">QStringList</a> <a class="code" href="namespaceKShell.html#adbfb363acdf77b50dd86879fd854c4de" title="Splits cmd according to POSIX shell word splitting and quoting rules.">KShell::splitArgs</a>( <span class="keyword">const</span> <a class="codeRef" href="qstring.html">QString</a> &amp;args, <span class="keywordtype">int</span> flags, <span class="keywordtype">int</span> *err )
<a name="l00066"></a>00066 {
<a name="l00067"></a>00067     <a class="codeRef" href="qstringlist.html">QStringList</a> ret;
<a name="l00068"></a>00068     <span class="keywordtype">bool</span> firstword = flags &amp; <a class="code" href="namespaceKShell.html#a13dc74f8b1c83424f12287bf4f7a3dfba370b199cf87b08725f99b132260ae062" title="Bail out if a non-quoting and not quoted shell meta character is encoutered.">AbortOnMeta</a>;
<a name="l00069"></a>00069 
<a name="l00070"></a>00070     <span class="keywordflow">for</span> (uint pos = 0; ; ) {
<a name="l00071"></a>00071         <a class="codeRef" href="qchar.html">QChar</a> c;
<a name="l00072"></a>00072         <span class="keywordflow">do</span> {
<a name="l00073"></a>00073             <span class="keywordflow">if</span> (pos &gt;= args.<a class="codeRef" href="qstring.html#length">length</a>())
<a name="l00074"></a>00074                 <span class="keywordflow">goto</span> okret;
<a name="l00075"></a>00075             c = args.<a class="codeRef" href="qstring.html#unicode">unicode</a>()[pos++];
<a name="l00076"></a>00076         } <span class="keywordflow">while</span> (c.<a class="codeRef" href="qchar.html#isSpace">isSpace</a>());
<a name="l00077"></a>00077         <a class="codeRef" href="qstring.html">QString</a> cret;
<a name="l00078"></a>00078         <span class="keywordflow">if</span> ((flags &amp; <a class="code" href="namespaceKShell.html#a13dc74f8b1c83424f12287bf4f7a3dfba2f94a11182b1568e2cacf006d86ca8ad" title="Perform tilde expansion.">TildeExpand</a>) &amp;&amp; c == <span class="charliteral">&#39;~&#39;</span>) {
<a name="l00079"></a>00079             uint opos = pos;
<a name="l00080"></a>00080             <span class="keywordflow">for</span> (; ; pos++) {
<a name="l00081"></a>00081                 <span class="keywordflow">if</span> (pos &gt;= args.<a class="codeRef" href="qstring.html#length">length</a>())
<a name="l00082"></a>00082                     <span class="keywordflow">break</span>;
<a name="l00083"></a>00083                 c = args.<a class="codeRef" href="qstring.html#unicode">unicode</a>()[pos];
<a name="l00084"></a>00084                 <span class="keywordflow">if</span> (c == <span class="charliteral">&#39;/&#39;</span> || c.<a class="codeRef" href="qchar.html#isSpace">isSpace</a>())
<a name="l00085"></a>00085                     <span class="keywordflow">break</span>;
<a name="l00086"></a>00086                 <span class="keywordflow">if</span> (isQuoteMeta( c )) {
<a name="l00087"></a>00087                     pos = opos;
<a name="l00088"></a>00088                     c = <span class="charliteral">&#39;~&#39;</span>;
<a name="l00089"></a>00089                     <span class="keywordflow">goto</span> notilde;
<a name="l00090"></a>00090                 }
<a name="l00091"></a>00091                 <span class="keywordflow">if</span> ((flags &amp; AbortOnMeta) &amp;&amp; isMeta( c ))
<a name="l00092"></a>00092                     <span class="keywordflow">goto</span> metaerr;
<a name="l00093"></a>00093             }
<a name="l00094"></a>00094             <a class="codeRef" href="qstring.html">QString</a> ccret = <a class="code" href="namespaceKShell.html#a8b9e5ebfbf0cbd250dfacfb44b38421d" title="Obtain a user&#39;s home directory.">homeDir</a>( <a class="codeRef" href="qconststring.html">QConstString</a>( args.<a class="codeRef" href="qstring.html#unicode">unicode</a>() + opos, pos - opos ).<span class="keywordtype">string</span>() );
<a name="l00095"></a>00095             <span class="keywordflow">if</span> (ccret.<a class="codeRef" href="qstring.html#isEmpty">isEmpty</a>()) {
<a name="l00096"></a>00096                 pos = opos;
<a name="l00097"></a>00097                 c = <span class="charliteral">&#39;~&#39;</span>;
<a name="l00098"></a>00098                 <span class="keywordflow">goto</span> notilde;
<a name="l00099"></a>00099             }
<a name="l00100"></a>00100             <span class="keywordflow">if</span> (pos &gt;= args.<a class="codeRef" href="qstring.html#length">length</a>()) {
<a name="l00101"></a>00101                 ret += ccret;
<a name="l00102"></a>00102                 <span class="keywordflow">goto</span> okret;
<a name="l00103"></a>00103             }
<a name="l00104"></a>00104             pos++;
<a name="l00105"></a>00105             <span class="keywordflow">if</span> (c.<a class="codeRef" href="qchar.html#isSpace">isSpace</a>()) {
<a name="l00106"></a>00106                 ret += ccret;
<a name="l00107"></a>00107                 firstword = <span class="keyword">false</span>;
<a name="l00108"></a>00108                 <span class="keywordflow">continue</span>;
<a name="l00109"></a>00109             }
<a name="l00110"></a>00110             cret = ccret;
<a name="l00111"></a>00111         }
<a name="l00112"></a>00112         <span class="comment">// before the notilde label, as a tilde does not match anyway</span>
<a name="l00113"></a>00113         <span class="keywordflow">if</span> (firstword) {
<a name="l00114"></a>00114             <span class="keywordflow">if</span> (c == <span class="charliteral">&#39;_&#39;</span> || (c &gt;= <span class="charliteral">&#39;A&#39;</span> &amp;&amp; c &lt;= <span class="charliteral">&#39;Z&#39;</span>) || (c &gt;= <span class="charliteral">&#39;a&#39;</span> &amp;&amp; c &lt;= <span class="charliteral">&#39;z&#39;</span>)) {
<a name="l00115"></a>00115                 uint pos2 = pos;
<a name="l00116"></a>00116                 <a class="codeRef" href="qchar.html">QChar</a> cc;
<a name="l00117"></a>00117                 <span class="keywordflow">do</span>
<a name="l00118"></a>00118                   cc = args[pos2++];
<a name="l00119"></a>00119                 <span class="keywordflow">while</span> (cc == <span class="charliteral">&#39;_&#39;</span> || (cc &gt;= <span class="charliteral">&#39;A&#39;</span> &amp;&amp; cc &lt;= <span class="charliteral">&#39;Z&#39;</span>) ||
<a name="l00120"></a>00120                        (cc &gt;= <span class="charliteral">&#39;a&#39;</span> &amp;&amp; cc &lt;= &#39;z&#39;) || (cc &gt;= <span class="charliteral">&#39;0&#39;</span> &amp;&amp; cc &lt;= <span class="charliteral">&#39;9&#39;</span>));
<a name="l00121"></a>00121                 <span class="keywordflow">if</span> (cc == <span class="charliteral">&#39;=&#39;</span>)
<a name="l00122"></a>00122                     <span class="keywordflow">goto</span> metaerr;
<a name="l00123"></a>00123             }
<a name="l00124"></a>00124         }
<a name="l00125"></a>00125       notilde:
<a name="l00126"></a>00126         <span class="keywordflow">do</span> {
<a name="l00127"></a>00127             <span class="keywordflow">if</span> (c == <span class="charliteral">&#39;\&#39;&#39;</span>) {
<a name="l00128"></a>00128                 uint spos = pos;
<a name="l00129"></a>00129                 <span class="keywordflow">do</span> {
<a name="l00130"></a>00130                     <span class="keywordflow">if</span> (pos &gt;= args.<a class="codeRef" href="qstring.html#length">length</a>())
<a name="l00131"></a>00131                         <span class="keywordflow">goto</span> quoteerr;
<a name="l00132"></a>00132                     c = args.<a class="codeRef" href="qstring.html#unicode">unicode</a>()[pos++];
<a name="l00133"></a>00133                 } <span class="keywordflow">while</span> (c != <span class="charliteral">&#39;\&#39;&#39;</span>);
<a name="l00134"></a>00134                 cret += <a class="codeRef" href="qconststring.html">QConstString</a>( args.<a class="codeRef" href="qstring.html#unicode">unicode</a>() + spos, pos - spos - 1 ).<span class="keywordtype">string</span>();
<a name="l00135"></a>00135             } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (c == <span class="charliteral">&#39;&quot;&#39;</span>) {
<a name="l00136"></a>00136                 <span class="keywordflow">for</span> (;;) {
<a name="l00137"></a>00137                     <span class="keywordflow">if</span> (pos &gt;= args.<a class="codeRef" href="qstring.html#length">length</a>())
<a name="l00138"></a>00138                         <span class="keywordflow">goto</span> quoteerr;
<a name="l00139"></a>00139                     c = args.<a class="codeRef" href="qstring.html#unicode">unicode</a>()[pos++];
<a name="l00140"></a>00140                     <span class="keywordflow">if</span> (c == <span class="charliteral">&#39;&quot;&#39;</span>)
<a name="l00141"></a>00141                         <span class="keywordflow">break</span>;
<a name="l00142"></a>00142                     <span class="keywordflow">if</span> (c == <span class="charliteral">&#39;\\&#39;</span>) {
<a name="l00143"></a>00143                         <span class="keywordflow">if</span> (pos &gt;= args.<a class="codeRef" href="qstring.html#length">length</a>())
<a name="l00144"></a>00144                             <span class="keywordflow">goto</span> quoteerr;
<a name="l00145"></a>00145                         c = args.<a class="codeRef" href="qstring.html#unicode">unicode</a>()[pos++];
<a name="l00146"></a>00146                         <span class="keywordflow">if</span> (c != <span class="charliteral">&#39;&quot;&#39;</span> &amp;&amp; c != <span class="charliteral">&#39;\\&#39;</span> &amp;&amp;
<a name="l00147"></a>00147                             !((flags &amp; AbortOnMeta) &amp;&amp; (c == <span class="charliteral">&#39;$&#39;</span> || c == <span class="charliteral">&#39;`&#39;</span>)))
<a name="l00148"></a>00148                             cret += <span class="charliteral">&#39;\\&#39;</span>;
<a name="l00149"></a>00149                     } <span class="keywordflow">else</span> <span class="keywordflow">if</span> ((flags &amp; AbortOnMeta) &amp;&amp; (c == <span class="charliteral">&#39;$&#39;</span> || c == <span class="charliteral">&#39;`&#39;</span>))
<a name="l00150"></a>00150                         <span class="keywordflow">goto</span> metaerr;
<a name="l00151"></a>00151                     cret += c;
<a name="l00152"></a>00152                 }
<a name="l00153"></a>00153             } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (c == <span class="charliteral">&#39;$&#39;</span> &amp;&amp; args[pos] == <span class="charliteral">&#39;\&#39;&#39;</span>) {
<a name="l00154"></a>00154                 pos++;
<a name="l00155"></a>00155                 <span class="keywordflow">for</span> (;;) {
<a name="l00156"></a>00156                     <span class="keywordflow">if</span> (pos &gt;= args.<a class="codeRef" href="qstring.html#length">length</a>())
<a name="l00157"></a>00157                         <span class="keywordflow">goto</span> quoteerr;
<a name="l00158"></a>00158                     c = args.<a class="codeRef" href="qstring.html#unicode">unicode</a>()[pos++];
<a name="l00159"></a>00159                     <span class="keywordflow">if</span> (c == <span class="charliteral">&#39;\&#39;&#39;</span>)
<a name="l00160"></a>00160                         <span class="keywordflow">break</span>;
<a name="l00161"></a>00161                     <span class="keywordflow">if</span> (c == <span class="charliteral">&#39;\\&#39;</span>) {
<a name="l00162"></a>00162                         <span class="keywordflow">if</span> (pos &gt;= args.<a class="codeRef" href="qstring.html#length">length</a>())
<a name="l00163"></a>00163                             <span class="keywordflow">goto</span> quoteerr;
<a name="l00164"></a>00164                         c = args.<a class="codeRef" href="qstring.html#unicode">unicode</a>()[pos++];
<a name="l00165"></a>00165                         <span class="keywordflow">switch</span> (c) {
<a name="l00166"></a>00166                         <span class="keywordflow">case</span> <span class="charliteral">&#39;a&#39;</span>: cret += <span class="charliteral">&#39;\a&#39;</span>; <span class="keywordflow">break</span>;
<a name="l00167"></a>00167                         <span class="keywordflow">case</span> <span class="charliteral">&#39;b&#39;</span>: cret += <span class="charliteral">&#39;\b&#39;</span>; <span class="keywordflow">break</span>;
<a name="l00168"></a>00168                         <span class="keywordflow">case</span> <span class="charliteral">&#39;e&#39;</span>: cret += <span class="charliteral">&#39;\033&#39;</span>; <span class="keywordflow">break</span>;
<a name="l00169"></a>00169                         <span class="keywordflow">case</span> <span class="charliteral">&#39;f&#39;</span>: cret += <span class="charliteral">&#39;\f&#39;</span>; <span class="keywordflow">break</span>;
<a name="l00170"></a>00170                         <span class="keywordflow">case</span> <span class="charliteral">&#39;n&#39;</span>: cret += <span class="charliteral">&#39;\n&#39;</span>; <span class="keywordflow">break</span>;
<a name="l00171"></a>00171                         <span class="keywordflow">case</span> <span class="charliteral">&#39;r&#39;</span>: cret += <span class="charliteral">&#39;\r&#39;</span>; <span class="keywordflow">break</span>;
<a name="l00172"></a>00172                         <span class="keywordflow">case</span> <span class="charliteral">&#39;t&#39;</span>: cret += <span class="charliteral">&#39;\t&#39;</span>; <span class="keywordflow">break</span>;
<a name="l00173"></a>00173                         <span class="keywordflow">case</span> <span class="charliteral">&#39;\\&#39;</span>: cret += <span class="charliteral">&#39;\\&#39;</span>; <span class="keywordflow">break</span>;
<a name="l00174"></a>00174                         <span class="keywordflow">case</span> <span class="charliteral">&#39;\&#39;&#39;</span>: cret += <span class="charliteral">&#39;\&#39;&#39;</span>; <span class="keywordflow">break</span>;
<a name="l00175"></a>00175                         <span class="keywordflow">case</span> <span class="charliteral">&#39;c&#39;</span>: cret += args[pos++] &amp; 31; <span class="keywordflow">break</span>;
<a name="l00176"></a>00176                         <span class="keywordflow">case</span> <span class="charliteral">&#39;x&#39;</span>:
<a name="l00177"></a>00177                           {
<a name="l00178"></a>00178                             <span class="keywordtype">int</span> hv = fromHex( args[pos] );
<a name="l00179"></a>00179                             <span class="keywordflow">if</span> (hv &lt; 0) {
<a name="l00180"></a>00180                                 cret += <span class="stringliteral">&quot;\\x&quot;</span>;
<a name="l00181"></a>00181                             } <span class="keywordflow">else</span> {
<a name="l00182"></a>00182                                 <span class="keywordtype">int</span> hhv = fromHex( args[++pos] );
<a name="l00183"></a>00183                                 <span class="keywordflow">if</span> (hhv &gt; 0) {
<a name="l00184"></a>00184                                     hv = hv * 16 + hhv;
<a name="l00185"></a>00185                                     pos++;
<a name="l00186"></a>00186                                 }
<a name="l00187"></a>00187                                 cret += <a class="codeRef" href="qchar.html">QChar</a>( hv );
<a name="l00188"></a>00188                             }
<a name="l00189"></a>00189                             <span class="keywordflow">break</span>;
<a name="l00190"></a>00190                           }
<a name="l00191"></a>00191                         <span class="keywordflow">default</span>:
<a name="l00192"></a>00192                             <span class="keywordflow">if</span> (c &gt;= <span class="charliteral">&#39;0&#39;</span> &amp;&amp; c &lt;= <span class="charliteral">&#39;7&#39;</span>) {
<a name="l00193"></a>00193                                 <span class="keywordtype">int</span> hv = c - <span class="charliteral">&#39;0&#39;</span>;
<a name="l00194"></a>00194                                 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; 2; i++) {
<a name="l00195"></a>00195                                     c = args[pos];
<a name="l00196"></a>00196                                     <span class="keywordflow">if</span> (c &lt; &#39;0&#39; || c &gt; <span class="charliteral">&#39;7&#39;</span>)
<a name="l00197"></a>00197                                         <span class="keywordflow">break</span>;
<a name="l00198"></a>00198                                     hv = hv * 8 + (c - <span class="charliteral">&#39;0&#39;</span>);
<a name="l00199"></a>00199                                     pos++;
<a name="l00200"></a>00200                                 }
<a name="l00201"></a>00201                                 cret += <a class="codeRef" href="qchar.html">QChar</a>( hv );
<a name="l00202"></a>00202                             } <span class="keywordflow">else</span> {
<a name="l00203"></a>00203                                 cret += <span class="charliteral">&#39;\\&#39;</span>;
<a name="l00204"></a>00204                                 cret += c;
<a name="l00205"></a>00205                             }
<a name="l00206"></a>00206                             <span class="keywordflow">break</span>;
<a name="l00207"></a>00207                         }
<a name="l00208"></a>00208                     } <span class="keywordflow">else</span>
<a name="l00209"></a>00209                         cret += c;
<a name="l00210"></a>00210                 }
<a name="l00211"></a>00211             } <span class="keywordflow">else</span> {
<a name="l00212"></a>00212                 <span class="keywordflow">if</span> (c == <span class="charliteral">&#39;\\&#39;</span>) {
<a name="l00213"></a>00213                     <span class="keywordflow">if</span> (pos &gt;= args.<a class="codeRef" href="qstring.html#length">length</a>())
<a name="l00214"></a>00214                         <span class="keywordflow">goto</span> quoteerr;
<a name="l00215"></a>00215                     c = args.<a class="codeRef" href="qstring.html#unicode">unicode</a>()[pos++];
<a name="l00216"></a>00216                     <span class="keywordflow">if</span> (!c.<a class="codeRef" href="qchar.html#isSpace">isSpace</a>() &amp;&amp;
<a name="l00217"></a>00217                         !((flags &amp; AbortOnMeta) ? isMeta( c ) : isQuoteMeta( c )))
<a name="l00218"></a>00218                         cret += <span class="charliteral">&#39;\\&#39;</span>;
<a name="l00219"></a>00219                 } <span class="keywordflow">else</span> <span class="keywordflow">if</span> ((flags &amp; AbortOnMeta) &amp;&amp; isMeta( c ))
<a name="l00220"></a>00220                     <span class="keywordflow">goto</span> metaerr;
<a name="l00221"></a>00221                 cret += c;
<a name="l00222"></a>00222             }
<a name="l00223"></a>00223             <span class="keywordflow">if</span> (pos &gt;= args.<a class="codeRef" href="qstring.html#length">length</a>())
<a name="l00224"></a>00224                 <span class="keywordflow">break</span>;
<a name="l00225"></a>00225             c = args.<a class="codeRef" href="qstring.html#unicode">unicode</a>()[pos++];
<a name="l00226"></a>00226         } <span class="keywordflow">while</span> (!c.<a class="codeRef" href="qchar.html#isSpace">isSpace</a>());
<a name="l00227"></a>00227         ret += cret;
<a name="l00228"></a>00228         firstword = <span class="keyword">false</span>;
<a name="l00229"></a>00229     }
<a name="l00230"></a>00230 
<a name="l00231"></a>00231   okret:
<a name="l00232"></a>00232     <span class="keywordflow">if</span> (err)
<a name="l00233"></a>00233         *err = <a class="code" href="namespaceKShell.html#af6f8d4a40db8066bea4a36beb1c75c83abe054a8b4ea3d14a7c95dc5e374bdf7f" title="Success.">NoError</a>;
<a name="l00234"></a>00234     <span class="keywordflow">return</span> ret;
<a name="l00235"></a>00235 
<a name="l00236"></a>00236   quoteerr:
<a name="l00237"></a>00237    <span class="keywordflow">if</span> (err)
<a name="l00238"></a>00238        *err = <a class="code" href="namespaceKShell.html#af6f8d4a40db8066bea4a36beb1c75c83a2132d5231cbeb1c16f3f7f86b9c0abc5" title="Indicates a parsing error, like an unterminated quoted string.">BadQuoting</a>;
<a name="l00239"></a>00239    <span class="keywordflow">return</span> <a class="codeRef" href="qstringlist.html">QStringList</a>();
<a name="l00240"></a>00240 
<a name="l00241"></a>00241   metaerr:
<a name="l00242"></a>00242    <span class="keywordflow">if</span> (err)
<a name="l00243"></a>00243        *err = <a class="code" href="namespaceKShell.html#af6f8d4a40db8066bea4a36beb1c75c83a63971c1823de094bb0a1cf0b0a9b4a2c" title="The AbortOnMeta flag was set and a shell meta character was encoutered.">FoundMeta</a>;
<a name="l00244"></a>00244    <span class="keywordflow">return</span> <a class="codeRef" href="qstringlist.html">QStringList</a>();
<a name="l00245"></a>00245 }
<a name="l00246"></a>00246 
<a name="l00247"></a>00247 <span class="keyword">inline</span> <span class="keyword">static</span> <span class="keywordtype">bool</span> isSpecial( uint c )
<a name="l00248"></a>00248 {
<a name="l00249"></a>00249     <span class="keyword">static</span> <span class="keyword">const</span> uchar iqm[] = {
<a name="l00250"></a>00250         0xff, 0xff, 0xff, 0xff, 0xdd, 0x07, 0x00, 0xd8,
<a name="l00251"></a>00251         0x00, 0x00, 0x00, 0x10, 0x01, 0x00, 0x00, 0x38
<a name="l00252"></a>00252     }; <span class="comment">// 0-32 \&#39;&quot;$`&lt;&gt;|;&amp;(){}*?#</span>
<a name="l00253"></a>00253     
<a name="l00254"></a>00254     <span class="keywordflow">return</span> (c &lt; <span class="keyword">sizeof</span>(iqm) * 8) &amp;&amp; (iqm[c / 8] &amp; (1 &lt;&lt; (c &amp; 7)));
<a name="l00255"></a>00255 }
<a name="l00256"></a>00256 
<a name="l00257"></a><a class="code" href="namespaceKShell.html#ad92ed56d00a678554dd04b0b1429760e">00257</a> <a class="codeRef" href="qstring.html">QString</a> <a class="code" href="namespaceKShell.html#ad92ed56d00a678554dd04b0b1429760e" title="Quotes and joins args together according to POSIX shell rules.">KShell::joinArgs</a>( <span class="keyword">const</span> <a class="codeRef" href="qstringlist.html">QStringList</a> &amp;args )
<a name="l00258"></a>00258 {
<a name="l00259"></a>00259     <a class="codeRef" href="qchar.html">QChar</a> q( <span class="charliteral">&#39;\&#39;&#39;</span> );
<a name="l00260"></a>00260     <a class="codeRef" href="qstring.html">QString</a> ret;
<a name="l00261"></a>00261     <span class="keywordflow">for</span> (QStringList::ConstIterator it = args.begin(); it != args.end(); ++it) {
<a name="l00262"></a>00262         <span class="keywordflow">if</span> (!ret.<a class="codeRef" href="qstring.html#isEmpty">isEmpty</a>())
<a name="l00263"></a>00263             ret += <span class="charliteral">&#39; &#39;</span>;
<a name="l00264"></a>00264         <span class="keywordflow">if</span> (!(*it).length())
<a name="l00265"></a>00265             ret.<a class="codeRef" href="qstring.html#append">append</a>( q ).append( q );
<a name="l00266"></a>00266         <span class="keywordflow">else</span> {
<a name="l00267"></a>00267             <span class="keywordflow">for</span> (uint i = 0; i &lt; (*it).length(); i++)
<a name="l00268"></a>00268                 <span class="keywordflow">if</span> (isSpecial((*it).unicode()[i])) {
<a name="l00269"></a>00269                     <a class="codeRef" href="qstring.html">QString</a> tmp(*it);
<a name="l00270"></a>00270                     tmp.<a class="codeRef" href="qstring.html#replace">replace</a>( q, <span class="stringliteral">&quot;&#39;\\&#39;&#39;&quot;</span> );
<a name="l00271"></a>00271                     ret += q;
<a name="l00272"></a>00272                     tmp += q;
<a name="l00273"></a>00273                     ret += tmp;
<a name="l00274"></a>00274                     <span class="keywordflow">goto</span> ex;
<a name="l00275"></a>00275                 }
<a name="l00276"></a>00276             ret += *it;
<a name="l00277"></a>00277           ex: ;
<a name="l00278"></a>00278         }
<a name="l00279"></a>00279     }
<a name="l00280"></a>00280     <span class="keywordflow">return</span> ret;
<a name="l00281"></a>00281 }
<a name="l00282"></a>00282 
<a name="l00283"></a><a class="code" href="namespaceKShell.html#ae704bcd0b32bfd8df3b1758cd520654e">00283</a> <a class="codeRef" href="qstring.html">QString</a> <a class="code" href="namespaceKShell.html#ad92ed56d00a678554dd04b0b1429760e" title="Quotes and joins args together according to POSIX shell rules.">KShell::joinArgs</a>( <span class="keyword">const</span> <span class="keywordtype">char</span> * <span class="keyword">const</span> *args, <span class="keywordtype">int</span> nargs )
<a name="l00284"></a>00284 {
<a name="l00285"></a>00285     <span class="keywordflow">if</span> (!args)
<a name="l00286"></a>00286         <span class="keywordflow">return</span> QString::null; <span class="comment">// well, QString::empty, in fact. qt sucks ;)</span>
<a name="l00287"></a>00287     <a class="codeRef" href="qchar.html">QChar</a> q( <span class="charliteral">&#39;\&#39;&#39;</span> );
<a name="l00288"></a>00288     <a class="codeRef" href="qstring.html">QString</a> ret;
<a name="l00289"></a>00289     <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">char</span> * <span class="keyword">const</span> *argp = args; nargs &amp;&amp; *argp; argp++, nargs--) {
<a name="l00290"></a>00290         <span class="keywordflow">if</span> (!ret.<a class="codeRef" href="qstring.html#isEmpty">isEmpty</a>())
<a name="l00291"></a>00291             ret += <span class="charliteral">&#39; &#39;</span>;
<a name="l00292"></a>00292         <span class="keywordflow">if</span> (!**argp)
<a name="l00293"></a>00293             ret.<a class="codeRef" href="qstring.html#append">append</a>( q ).append( q );
<a name="l00294"></a>00294         <span class="keywordflow">else</span> {
<a name="l00295"></a>00295             <a class="codeRef" href="qstring.html">QString</a> tmp( <a class="codeRef" href="qfile.html#decodeName">QFile::decodeName</a>( *argp ) );
<a name="l00296"></a>00296             <span class="keywordflow">for</span> (uint i = 0; i &lt; tmp.<a class="codeRef" href="qstring.html#length">length</a>(); i++)
<a name="l00297"></a>00297                 <span class="keywordflow">if</span> (isSpecial(tmp.<a class="codeRef" href="qstring.html#unicode">unicode</a>()[i])) {
<a name="l00298"></a>00298                     tmp.<a class="codeRef" href="qstring.html#replace">replace</a>( q, <span class="stringliteral">&quot;&#39;\\&#39;&#39;&quot;</span> );
<a name="l00299"></a>00299                     ret += q;
<a name="l00300"></a>00300                     tmp += q;
<a name="l00301"></a>00301                     ret += tmp;
<a name="l00302"></a>00302                     <span class="keywordflow">goto</span> ex;
<a name="l00303"></a>00303                 }
<a name="l00304"></a>00304             ret += tmp;
<a name="l00305"></a>00305           ex: ;
<a name="l00306"></a>00306        }
<a name="l00307"></a>00307     }
<a name="l00308"></a>00308     <span class="keywordflow">return</span> ret;
<a name="l00309"></a>00309 }
<a name="l00310"></a>00310 
<a name="l00311"></a><a class="code" href="namespaceKShell.html#a04818b2eb1a1570a59e741f30def9182">00311</a> <a class="codeRef" href="qstring.html">QString</a> <a class="code" href="namespaceKShell.html#a04818b2eb1a1570a59e741f30def9182" title="Same as above, but $&#39;&#39; is used instead of &#39;&#39; for the quoting.">KShell::joinArgsDQ</a>( <span class="keyword">const</span> <a class="codeRef" href="qstringlist.html">QStringList</a> &amp;args )
<a name="l00312"></a>00312 {
<a name="l00313"></a>00313     <a class="codeRef" href="qchar.html">QChar</a> q( <span class="charliteral">&#39;\&#39;&#39;</span> ), sp( <span class="charliteral">&#39; &#39;</span> ), bs( <span class="charliteral">&#39;\\&#39;</span> );
<a name="l00314"></a>00314     <a class="codeRef" href="qstring.html">QString</a> ret;
<a name="l00315"></a>00315     <span class="keywordflow">for</span> (QStringList::ConstIterator it = args.begin(); it != args.end(); ++it) {
<a name="l00316"></a>00316         <span class="keywordflow">if</span> (!ret.<a class="codeRef" href="qstring.html#isEmpty">isEmpty</a>())
<a name="l00317"></a>00317             ret += sp;
<a name="l00318"></a>00318         <span class="keywordflow">if</span> (!(*it).length())
<a name="l00319"></a>00319             ret.<a class="codeRef" href="qstring.html#append">append</a>( q ).append( q );
<a name="l00320"></a>00320         <span class="keywordflow">else</span> {
<a name="l00321"></a>00321             <span class="keywordflow">for</span> (uint i = 0; i &lt; (*it).length(); i++)
<a name="l00322"></a>00322                 <span class="keywordflow">if</span> (isSpecial((*it).unicode()[i])) {
<a name="l00323"></a>00323                     ret.<a class="codeRef" href="qstring.html#append">append</a>( <span class="charliteral">&#39;$&#39;</span> ).append( q );
<a name="l00324"></a>00324                     <span class="keywordflow">for</span> (uint pos = 0; pos &lt; (*it).length(); pos++) {
<a name="l00325"></a>00325                         <span class="keywordtype">int</span> c = (*it).unicode()[pos];
<a name="l00326"></a>00326                         <span class="keywordflow">if</span> (c &lt; 32) {
<a name="l00327"></a>00327                             ret += bs;
<a name="l00328"></a>00328                             <span class="keywordflow">switch</span> (c) {
<a name="l00329"></a>00329                             <span class="keywordflow">case</span> <span class="charliteral">&#39;\a&#39;</span>: ret += <span class="charliteral">&#39;a&#39;</span>; <span class="keywordflow">break</span>;
<a name="l00330"></a>00330                             <span class="keywordflow">case</span> <span class="charliteral">&#39;\b&#39;</span>: ret += <span class="charliteral">&#39;b&#39;</span>; <span class="keywordflow">break</span>;
<a name="l00331"></a>00331                             <span class="keywordflow">case</span> <span class="charliteral">&#39;\033&#39;</span>: ret += <span class="charliteral">&#39;e&#39;</span>; <span class="keywordflow">break</span>;
<a name="l00332"></a>00332                             <span class="keywordflow">case</span> <span class="charliteral">&#39;\f&#39;</span>: ret += <span class="charliteral">&#39;f&#39;</span>; <span class="keywordflow">break</span>;
<a name="l00333"></a>00333                             <span class="keywordflow">case</span> <span class="charliteral">&#39;\n&#39;</span>: ret += <span class="charliteral">&#39;n&#39;</span>; <span class="keywordflow">break</span>;
<a name="l00334"></a>00334                             <span class="keywordflow">case</span> <span class="charliteral">&#39;\r&#39;</span>: ret += <span class="charliteral">&#39;r&#39;</span>; <span class="keywordflow">break</span>;
<a name="l00335"></a>00335                             <span class="keywordflow">case</span> <span class="charliteral">&#39;\t&#39;</span>: ret += <span class="charliteral">&#39;t&#39;</span>; <span class="keywordflow">break</span>;
<a name="l00336"></a>00336                             <span class="keywordflow">case</span> <span class="charliteral">&#39;\034&#39;</span>: ret += <span class="charliteral">&#39;c&#39;</span>; ret += <span class="charliteral">&#39;|&#39;</span>; <span class="keywordflow">break</span>;
<a name="l00337"></a>00337                             <span class="keywordflow">default</span>: ret += <span class="charliteral">&#39;c&#39;</span>; ret += c + <span class="charliteral">&#39;@&#39;</span>; <span class="keywordflow">break</span>;
<a name="l00338"></a>00338                             }
<a name="l00339"></a>00339                         } <span class="keywordflow">else</span> {
<a name="l00340"></a>00340                             <span class="keywordflow">if</span> (c == <span class="charliteral">&#39;\&#39;&#39;</span> || c == <span class="charliteral">&#39;\\&#39;</span>)
<a name="l00341"></a>00341                                 ret += bs;
<a name="l00342"></a>00342                             ret += c;
<a name="l00343"></a>00343                         }
<a name="l00344"></a>00344                     }
<a name="l00345"></a>00345                     ret.<a class="codeRef" href="qstring.html#append">append</a>( q );
<a name="l00346"></a>00346                     <span class="keywordflow">goto</span> ex;
<a name="l00347"></a>00347                 }
<a name="l00348"></a>00348             ret += *it;
<a name="l00349"></a>00349           ex: ;
<a name="l00350"></a>00350         }
<a name="l00351"></a>00351     }
<a name="l00352"></a>00352     <span class="keywordflow">return</span> ret;
<a name="l00353"></a>00353 }
<a name="l00354"></a>00354 
<a name="l00355"></a><a class="code" href="namespaceKShell.html#aee26c68c6634fee78266863f9fcf0efd">00355</a> <a class="codeRef" href="qstring.html">QString</a> <a class="code" href="namespaceKShell.html#aee26c68c6634fee78266863f9fcf0efd" title="Performs tilde expansion on path.">KShell::tildeExpand</a>( <span class="keyword">const</span> <a class="codeRef" href="qstring.html">QString</a> &amp;fname )
<a name="l00356"></a>00356 {
<a name="l00357"></a>00357     <span class="keywordflow">if</span> (fname[0] == <span class="charliteral">&#39;~&#39;</span>) {
<a name="l00358"></a>00358         <span class="keywordtype">int</span> pos = fname.<a class="codeRef" href="qstring.html#find">find</a>( <span class="charliteral">&#39;/&#39;</span> );
<a name="l00359"></a>00359         <span class="keywordflow">if</span> (pos &lt; 0)
<a name="l00360"></a>00360             <span class="keywordflow">return</span> <a class="code" href="namespaceKShell.html#a8b9e5ebfbf0cbd250dfacfb44b38421d" title="Obtain a user&#39;s home directory.">homeDir</a>( <a class="codeRef" href="qconststring.html">QConstString</a>( fname.<a class="codeRef" href="qstring.html#unicode">unicode</a>() + 1, fname.<a class="codeRef" href="qstring.html#length">length</a>() - 1 ).<span class="keywordtype">string</span>() );
<a name="l00361"></a>00361         <a class="codeRef" href="qstring.html">QString</a> ret = <a class="code" href="namespaceKShell.html#a8b9e5ebfbf0cbd250dfacfb44b38421d" title="Obtain a user&#39;s home directory.">homeDir</a>( <a class="codeRef" href="qconststring.html">QConstString</a>( fname.<a class="codeRef" href="qstring.html#unicode">unicode</a>() + 1, pos - 1 ).<span class="keywordtype">string</span>() );
<a name="l00362"></a>00362         <span class="keywordflow">if</span> (!ret.isNull())
<a name="l00363"></a>00363             ret += <a class="codeRef" href="qconststring.html">QConstString</a>( fname.<a class="codeRef" href="qstring.html#unicode">unicode</a>() + pos, fname.<a class="codeRef" href="qstring.html#length">length</a>() - pos ).<span class="keywordtype">string</span>();
<a name="l00364"></a>00364         <span class="keywordflow">return</span> ret;
<a name="l00365"></a>00365     }
<a name="l00366"></a>00366     <span class="keywordflow">return</span> fname;
<a name="l00367"></a>00367 }
<a name="l00368"></a>00368 
<a name="l00369"></a><a class="code" href="namespaceKShell.html#a8b9e5ebfbf0cbd250dfacfb44b38421d">00369</a> <a class="codeRef" href="qstring.html">QString</a> <a class="code" href="namespaceKShell.html#a8b9e5ebfbf0cbd250dfacfb44b38421d" title="Obtain a user&#39;s home directory.">KShell::homeDir</a>( <span class="keyword">const</span> <a class="codeRef" href="qstring.html">QString</a> &amp;user )
<a name="l00370"></a>00370 {
<a name="l00371"></a>00371     <span class="keywordflow">if</span> (user.<a class="codeRef" href="qstring.html#isEmpty">isEmpty</a>())
<a name="l00372"></a>00372         <span class="keywordflow">return</span> <a class="codeRef" href="qfile.html#decodeName">QFile::decodeName</a>( getenv( <span class="stringliteral">&quot;HOME&quot;</span> ) );
<a name="l00373"></a>00373     <span class="keyword">struct </span>passwd *pw = getpwnam( <a class="codeRef" href="qfile.html#encodeName">QFile::encodeName</a>( user ).data() );
<a name="l00374"></a>00374     <span class="keywordflow">if</span> (!pw)
<a name="l00375"></a>00375         <span class="keywordflow">return</span> QString::null;
<a name="l00376"></a>00376     <span class="keywordflow">return</span> <a class="codeRef" href="qfile.html#decodeName">QFile::decodeName</a>( pw-&gt;pw_dir );
<a name="l00377"></a>00377 }
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