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<div class="navpath"><a class="el" href="dir_b47abd1aad201a152869566145babb61.html">src</a> » <a class="el" href="dir_3459d97d61361c9d41d467fba45f9c61.html">common</a>
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<h1>stringutil.cpp</h1><a href="stringutil_8cpp.html">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">** This file is part of Vidalia, and is subject to the license terms in the</span>
<a name="l00003"></a>00003 <span class="comment">** LICENSE file, found in the top level directory of this distribution. If you</span>
<a name="l00004"></a>00004 <span class="comment">** did not receive the LICENSE file with this file, you may obtain it from the</span>
<a name="l00005"></a>00005 <span class="comment">** Vidalia source package distributed by the Vidalia Project at</span>
<a name="l00006"></a>00006 <span class="comment">** http://www.vidalia-project.net/. No part of Vidalia, including this file,</span>
<a name="l00007"></a>00007 <span class="comment">** may be copied, modified, propagated, or distributed except according to the</span>
<a name="l00008"></a>00008 <span class="comment">** terms described in the LICENSE file.</span>
<a name="l00009"></a>00009 <span class="comment">*/</span>
<a name="l00010"></a>00010
<a name="l00011"></a>00011 <span class="comment">/*</span>
<a name="l00012"></a>00012 <span class="comment">** \file stringutil.cpp</span>
<a name="l00013"></a>00013 <span class="comment">** \version $Id: stringutil.cpp 3735 2009-04-28 20:28:01Z edmanm $</span>
<a name="l00014"></a>00014 <span class="comment">** \brief Common string manipulation functions</span>
<a name="l00015"></a>00015 <span class="comment">*/</span>
<a name="l00016"></a>00016
<a name="l00017"></a>00017 <span class="preprocessor">#include "<a class="code" href="stringutil_8h.html">stringutil.h</a>"</span>
<a name="l00018"></a>00018
<a name="l00019"></a>00019 <span class="preprocessor">#include <QCoreApplication></span>
<a name="l00020"></a>00020 <span class="preprocessor">#include <QApplication></span>
<a name="l00021"></a>00021
<a name="l00022"></a>00022 <span class="comment"></span>
<a name="l00023"></a>00023 <span class="comment">/** Create a QStringList from the array of C-style strings. */</span>
<a name="l00024"></a>00024 QStringList
<a name="l00025"></a><a class="code" href="stringutil_8h.html#aeff472cf5de3a95aa5190d35ffd9661c">00025</a> <a class="code" href="stringutil_8cpp.html#aeff472cf5de3a95aa5190d35ffd9661c">char_array_to_stringlist</a>(<span class="keywordtype">char</span> **arr, <span class="keywordtype">int</span> len)
<a name="l00026"></a>00026 {
<a name="l00027"></a>00027 QStringList list;
<a name="l00028"></a>00028 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> <a class="code" href="html_8cpp.html#a4a5dba6492ea149585950c59c210ff47">i</a> = 0; <a class="code" href="html_8cpp.html#a4a5dba6492ea149585950c59c210ff47">i</a> < len; <a class="code" href="html_8cpp.html#a4a5dba6492ea149585950c59c210ff47">i</a>++) {
<a name="l00029"></a>00029 list << QString(arr[<a class="code" href="html_8cpp.html#a4a5dba6492ea149585950c59c210ff47">i</a>]);
<a name="l00030"></a>00030 }
<a name="l00031"></a>00031 <span class="keywordflow">return</span> list;
<a name="l00032"></a>00032 }
<a name="l00033"></a>00033 <span class="comment"></span>
<a name="l00034"></a>00034 <span class="comment">/** Conditionally assigns errmsg to str if str is not null and returns false.</span>
<a name="l00035"></a>00035 <span class="comment"> * This is a seemingly pointless function, but it saves some messiness in</span>
<a name="l00036"></a>00036 <span class="comment"> * methods whose QString *errmsg parameter is optional. */</span>
<a name="l00037"></a>00037 <span class="keywordtype">bool</span>
<a name="l00038"></a><a class="code" href="stringutil_8h.html#a6e3f242b28c9165146182aec25e351a3">00038</a> <a class="code" href="stringutil_8cpp.html#a6e3f242b28c9165146182aec25e351a3">err</a>(QString *str, <span class="keyword">const</span> QString &errmsg)
<a name="l00039"></a>00039 {
<a name="l00040"></a>00040 <span class="keywordflow">if</span> (str) {
<a name="l00041"></a>00041 *str = errmsg;
<a name="l00042"></a>00042 }
<a name="l00043"></a>00043 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00044"></a>00044 }
<a name="l00045"></a>00045 <span class="comment"></span>
<a name="l00046"></a>00046 <span class="comment">/** Ensures all characters in str are in validChars. If a character appears</span>
<a name="l00047"></a>00047 <span class="comment"> * in str but not in validChars, it will be removed and the resulting</span>
<a name="l00048"></a>00048 <span class="comment"> * string returned. */</span>
<a name="l00049"></a>00049 QString
<a name="l00050"></a><a class="code" href="stringutil_8h.html#a3160a90d93ee7f5b4c2abebdfe4e8afc">00050</a> <a class="code" href="stringutil_8cpp.html#a3160a90d93ee7f5b4c2abebdfe4e8afc">ensure_valid_chars</a>(<span class="keyword">const</span> QString &str, <span class="keyword">const</span> QString &validChars)
<a name="l00051"></a>00051 {
<a name="l00052"></a>00052 QString out = str;
<a name="l00053"></a>00053 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> <a class="code" href="html_8cpp.html#a4a5dba6492ea149585950c59c210ff47">i</a> = 0; <a class="code" href="html_8cpp.html#a4a5dba6492ea149585950c59c210ff47">i</a> < str.length(); <a class="code" href="html_8cpp.html#a4a5dba6492ea149585950c59c210ff47">i</a>++) {
<a name="l00054"></a>00054 QChar c = str.at(<a class="code" href="html_8cpp.html#a4a5dba6492ea149585950c59c210ff47">i</a>);
<a name="l00055"></a>00055 <span class="keywordflow">if</span> (validChars.indexOf(c) < 0) {
<a name="l00056"></a>00056 out.remove(c);
<a name="l00057"></a>00057 }
<a name="l00058"></a>00058 }
<a name="l00059"></a>00059 <span class="keywordflow">return</span> out;
<a name="l00060"></a>00060 }
<a name="l00061"></a>00061 <span class="comment"></span>
<a name="l00062"></a>00062 <span class="comment">/** Scrubs an email address by replacing "@" with " at " and "." with " dot ". */</span>
<a name="l00063"></a>00063 QString
<a name="l00064"></a><a class="code" href="stringutil_8h.html#ad6c76e6ae682c586a541b8391b02df5d">00064</a> <a class="code" href="stringutil_8cpp.html#ad6c76e6ae682c586a541b8391b02df5d">scrub_email_addr</a>(<span class="keyword">const</span> QString &email)
<a name="l00065"></a>00065 {
<a name="l00066"></a>00066 QString scrubbed = email;
<a name="l00067"></a>00067 scrubbed = scrubbed.replace(<span class="stringliteral">"@"</span>, <span class="stringliteral">" at "</span>);
<a name="l00068"></a>00068 scrubbed = scrubbed.replace(<span class="stringliteral">"."</span>, <span class="stringliteral">" dot "</span>);
<a name="l00069"></a>00069 <span class="keywordflow">return</span> scrubbed;
<a name="l00070"></a>00070 }
<a name="l00071"></a>00071 <span class="comment"></span>
<a name="l00072"></a>00072 <span class="comment">/** Wraps <b>str</b> at <b>width</b> characters wide, using <b>sep</b> as the</span>
<a name="l00073"></a>00073 <span class="comment"> * word separator (" ", for example), and placing the line ending <b>le</b> at</span>
<a name="l00074"></a>00074 <span class="comment"> * the end of each line, except the last. */</span>
<a name="l00075"></a>00075 QString
<a name="l00076"></a><a class="code" href="stringutil_8h.html#aaef8d2e6e628f3fe84063f215b9db7ce">00076</a> <a class="code" href="stringutil_8cpp.html#a5a9147db4c941c08f95e403b9d322e9b">string_wrap</a>(<span class="keyword">const</span> QString &str, <span class="keywordtype">int</span> width,
<a name="l00077"></a>00077 <span class="keyword">const</span> QString &sep, <span class="keyword">const</span> QString &le)
<a name="l00078"></a>00078 {
<a name="l00079"></a>00079 QString wrapped;
<a name="l00080"></a>00080 <span class="keywordtype">int</span> pos, nextsep, wordlen, n;
<a name="l00081"></a>00081 <span class="keywordtype">int</span> seplen = sep.length();
<a name="l00082"></a>00082
<a name="l00083"></a>00083 <span class="keywordflow">if</span> (str.length() < width) {
<a name="l00084"></a>00084 <span class="keywordflow">return</span> str;
<a name="l00085"></a>00085 }
<a name="l00086"></a>00086
<a name="l00087"></a>00087 pos = 0;
<a name="l00088"></a>00088 n = width;
<a name="l00089"></a>00089 <span class="keywordflow">while</span> (pos < str.length()) {
<a name="l00090"></a>00090 <span class="comment">/* Get the length of a "word" */</span>
<a name="l00091"></a>00091 nextsep = str.indexOf(sep, pos);
<a name="l00092"></a>00092 <span class="keywordflow">if</span> (nextsep < 0) {
<a name="l00093"></a>00093 nextsep = str.length();
<a name="l00094"></a>00094 }
<a name="l00095"></a>00095 wordlen = nextsep-pos;
<a name="l00096"></a>00096
<a name="l00097"></a>00097 <span class="comment">/* Check if there is room for the word on this line */</span>
<a name="l00098"></a>00098 <span class="keywordflow">if</span> (wordlen > n) {
<a name="l00099"></a>00099 <span class="comment">/* Create a new line */</span>
<a name="l00100"></a>00100 wrapped.append(le);
<a name="l00101"></a>00101 n = width;
<a name="l00102"></a>00102 }
<a name="l00103"></a>00103
<a name="l00104"></a>00104 <span class="comment">/* Add the word to the current line */</span>
<a name="l00105"></a>00105 wrapped.append(str.mid(pos, wordlen+seplen));
<a name="l00106"></a>00106 n = n - wordlen - seplen;
<a name="l00107"></a>00107 pos += wordlen + seplen;
<a name="l00108"></a>00108 }
<a name="l00109"></a>00109 <span class="keywordflow">return</span> wrapped.trimmed();
<a name="l00110"></a>00110 }
<a name="l00111"></a>00111 <span class="comment"></span>
<a name="l00112"></a>00112 <span class="comment">/** Encodes the bytes in <b>buf</b> as an uppercase hexadecimal string and</span>
<a name="l00113"></a>00113 <span class="comment"> * returns the result. This function is derived from base16_encode() in Tor's</span>
<a name="l00114"></a>00114 <span class="comment"> * util.c. See LICENSE for details on Tor's license. */</span>
<a name="l00115"></a>00115 QString
<a name="l00116"></a><a class="code" href="stringutil_8h.html#a4d5ac084308fee41bcc66b9ed3754d8f">00116</a> <a class="code" href="stringutil_8cpp.html#a4d5ac084308fee41bcc66b9ed3754d8f">base16_encode</a>(<span class="keyword">const</span> QByteArray &buf)
<a name="l00117"></a>00117 {
<a name="l00118"></a>00118 QString hex;
<a name="l00119"></a>00119 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> <a class="code" href="html_8cpp.html#a4a5dba6492ea149585950c59c210ff47">i</a> = 0; <a class="code" href="html_8cpp.html#a4a5dba6492ea149585950c59c210ff47">i</a> < buf.size(); <a class="code" href="html_8cpp.html#a4a5dba6492ea149585950c59c210ff47">i</a>++) {
<a name="l00120"></a>00120 hex += <span class="stringliteral">"0123456789ABCDEF"</span>[((quint8)buf[<a class="code" href="html_8cpp.html#a4a5dba6492ea149585950c59c210ff47">i</a>]) >> 4];
<a name="l00121"></a>00121 hex += <span class="stringliteral">"0123456789ABCDEF"</span>[((quint8)buf[i]) & 0xf];
<a name="l00122"></a>00122 }
<a name="l00123"></a>00123 <span class="keywordflow">return</span> hex;
<a name="l00124"></a>00124 }
<a name="l00125"></a>00125 <span class="comment"></span>
<a name="l00126"></a>00126 <span class="comment">/** Given a string <b>str</b>, this function returns a quoted string with all</span>
<a name="l00127"></a>00127 <span class="comment"> * '"' and '\' characters escaped with a single '\'. */</span>
<a name="l00128"></a>00128 QString
<a name="l00129"></a><a class="code" href="stringutil_8h.html#a2323f625d9f361167e0455447c3fc83a">00129</a> <a class="code" href="stringutil_8cpp.html#a2323f625d9f361167e0455447c3fc83a">string_escape</a>(<span class="keyword">const</span> QString &str)
<a name="l00130"></a>00130 {
<a name="l00131"></a>00131 QString out;
<a name="l00132"></a>00132 out.append(<span class="stringliteral">"\""</span>);
<a name="l00133"></a>00133 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> <a class="code" href="html_8cpp.html#a4a5dba6492ea149585950c59c210ff47">i</a> = 0; <a class="code" href="html_8cpp.html#a4a5dba6492ea149585950c59c210ff47">i</a> < str.length(); <a class="code" href="html_8cpp.html#a4a5dba6492ea149585950c59c210ff47">i</a>++) {
<a name="l00134"></a>00134 <span class="keywordflow">if</span> (str[<a class="code" href="html_8cpp.html#a4a5dba6492ea149585950c59c210ff47">i</a>] == <span class="charliteral">'\"'</span> || str[<a class="code" href="html_8cpp.html#a4a5dba6492ea149585950c59c210ff47">i</a>] == <span class="charliteral">'\\'</span>)
<a name="l00135"></a>00135 out.append(<span class="charliteral">'\\'</span>);
<a name="l00136"></a>00136 out.append(str[<a class="code" href="html_8cpp.html#a4a5dba6492ea149585950c59c210ff47">i</a>]);
<a name="l00137"></a>00137 }
<a name="l00138"></a>00138 out.append(<span class="stringliteral">"\""</span>);
<a name="l00139"></a>00139 <span class="keywordflow">return</span> out;
<a name="l00140"></a>00140 }
<a name="l00141"></a>00141 <span class="comment"></span>
<a name="l00142"></a>00142 <span class="comment">/** Given a quoted string <b>str</b>, this function returns an unquoted,</span>
<a name="l00143"></a>00143 <span class="comment"> * unescaped string. <b>str</b> must start and end with an unescaped quote. */</span>
<a name="l00144"></a>00144 QString
<a name="l00145"></a><a class="code" href="stringutil_8h.html#a4b38dc4741e2c696cf08c1a3f6bbd17a">00145</a> <a class="code" href="stringutil_8cpp.html#a559eaa8ad9e4fab04d5bb5b6732283ea">string_unescape</a>(<span class="keyword">const</span> QString &str, <span class="keywordtype">bool</span> *ok)
<a name="l00146"></a>00146 {
<a name="l00147"></a>00147 QString out;
<a name="l00148"></a>00148
<a name="l00149"></a>00149 <span class="comment">/* The string must start and end with an unescaped dquote */</span>
<a name="l00150"></a>00150 <span class="keywordflow">if</span> (str.length() < 2 || !str.startsWith(<span class="stringliteral">"\""</span>) || !str.endsWith(<span class="stringliteral">"\""</span>) ||
<a name="l00151"></a>00151 (str.endsWith(<span class="stringliteral">"\\\""</span>) && !str.endsWith(<span class="stringliteral">"\\\\\""</span>))) {
<a name="l00152"></a>00152 <span class="keywordflow">if</span> (ok)
<a name="l00153"></a>00153 *ok = <span class="keyword">false</span>;
<a name="l00154"></a>00154 <span class="keywordflow">return</span> QString();
<a name="l00155"></a>00155 }
<a name="l00156"></a>00156 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> <a class="code" href="html_8cpp.html#a4a5dba6492ea149585950c59c210ff47">i</a> = 1; <a class="code" href="html_8cpp.html#a4a5dba6492ea149585950c59c210ff47">i</a> < str.length()-1; <a class="code" href="html_8cpp.html#a4a5dba6492ea149585950c59c210ff47">i</a>++) {
<a name="l00157"></a>00157 <span class="keywordflow">if</span> (str[<a class="code" href="html_8cpp.html#a4a5dba6492ea149585950c59c210ff47">i</a>] == <span class="charliteral">'\\'</span>)
<a name="l00158"></a>00158 <a class="code" href="html_8cpp.html#a4a5dba6492ea149585950c59c210ff47">i</a>++;
<a name="l00159"></a>00159 out.append(str[<a class="code" href="html_8cpp.html#a4a5dba6492ea149585950c59c210ff47">i</a>]);
<a name="l00160"></a>00160 }
<a name="l00161"></a>00161 <span class="keywordflow">if</span> (ok)
<a name="l00162"></a>00162 *ok = <span class="keyword">true</span>;
<a name="l00163"></a>00163 <span class="keywordflow">return</span> out;
<a name="l00164"></a>00164 }
<a name="l00165"></a>00165 <span class="comment"></span>
<a name="l00166"></a>00166 <span class="comment">/** Parses a series of space-separated key[=value|="value"] tokens from</span>
<a name="l00167"></a>00167 <span class="comment"> * <b>str</b> and returns the mappings in a QHash. If <b>str</b> was unable</span>
<a name="l00168"></a>00168 <span class="comment"> * to be parsed, <b>ok</b> is set to false. */</span>
<a name="l00169"></a>00169 QHash<QString,QString>
<a name="l00170"></a><a class="code" href="stringutil_8h.html#a663394e9ad8583d933ead3905e3cb673">00170</a> <a class="code" href="stringutil_8cpp.html#a2be53af228dd65232621f02a47bd8488">string_parse_keyvals</a>(<span class="keyword">const</span> QString &str, <span class="keywordtype">bool</span> *ok)
<a name="l00171"></a>00171 {
<a name="l00172"></a>00172 <span class="keywordtype">int</span> <a class="code" href="html_8cpp.html#a4a5dba6492ea149585950c59c210ff47">i</a>, len;
<a name="l00173"></a>00173 <span class="keywordtype">bool</span> tmp_ok;
<a name="l00174"></a>00174 QHash<QString,QString> keyvals;
<a name="l00175"></a>00175
<a name="l00176"></a>00176 i = 0;
<a name="l00177"></a>00177 len = str.length();
<a name="l00178"></a>00178 <span class="keywordflow">while</span> (i < len && str[i].isSpace())
<a name="l00179"></a>00179 i++; <span class="comment">/* Skip initial whitespace */</span>
<a name="l00180"></a>00180 <span class="keywordflow">while</span> (i < len) {
<a name="l00181"></a>00181 QString key, val;
<a name="l00182"></a>00182
<a name="l00183"></a>00183 <span class="keywordflow">while</span> (i < len && !str[i].isSpace() && str[i] != <span class="charliteral">'='</span>)
<a name="l00184"></a>00184 key.append(str[i++]);
<a name="l00185"></a>00185
<a name="l00186"></a>00186 <span class="keywordflow">if</span> (i < len && str[i] == <span class="charliteral">'='</span>) {
<a name="l00187"></a>00187 <span class="keywordflow">if</span> (++i < len && str[i] == <span class="charliteral">'\"'</span>) {
<a name="l00188"></a>00188 <span class="comment">/* The value is wrapped in quotes */</span>
<a name="l00189"></a>00189 val.append(str[i]);
<a name="l00190"></a>00190 <span class="keywordflow">while</span> (++i < len) {
<a name="l00191"></a>00191 val.append(str[i]);
<a name="l00192"></a>00192 <span class="keywordflow">if</span> (str[i] == <span class="charliteral">'\\'</span>) {
<a name="l00193"></a>00193 <span class="keywordflow">if</span> (++i == len)
<a name="l00194"></a>00194 <span class="keywordflow">goto</span> <a class="code" href="namespacetc.html#aa7353218fd7baef0876bbb422ce818af">error</a>;
<a name="l00195"></a>00195 val.append(str[i]);
<a name="l00196"></a>00196 } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (str[i] == <span class="charliteral">'\"'</span>) {
<a name="l00197"></a>00197 i++;
<a name="l00198"></a>00198 <span class="keywordflow">break</span>;
<a name="l00199"></a>00199 }
<a name="l00200"></a>00200 }
<a name="l00201"></a>00201 val = <a class="code" href="stringutil_8cpp.html#a559eaa8ad9e4fab04d5bb5b6732283ea">string_unescape</a>(val, &tmp_ok);
<a name="l00202"></a>00202 <span class="keywordflow">if</span> (!tmp_ok)
<a name="l00203"></a>00203 <span class="keywordflow">goto</span> <a class="code" href="namespacetc.html#aa7353218fd7baef0876bbb422ce818af">error</a>;
<a name="l00204"></a>00204 keyvals.insert(key, val);
<a name="l00205"></a>00205 } <span class="keywordflow">else</span> {
<a name="l00206"></a>00206 <span class="comment">/* The value was not wrapped in quotes */</span>
<a name="l00207"></a>00207 <span class="keywordflow">while</span> (i < len && !str[i].isSpace())
<a name="l00208"></a>00208 val.append(str[i++]);
<a name="l00209"></a>00209 keyvals.insert(key, val);
<a name="l00210"></a>00210 }
<a name="l00211"></a>00211 } <span class="keywordflow">else</span> {
<a name="l00212"></a>00212 <span class="comment">/* The key had no value */</span>
<a name="l00213"></a>00213 keyvals.insert(key, QString(<span class="stringliteral">""</span>));
<a name="l00214"></a>00214 }
<a name="l00215"></a>00215 <span class="keywordflow">while</span> (i < len && str[i].isSpace())
<a name="l00216"></a>00216 i++;
<a name="l00217"></a>00217 }
<a name="l00218"></a>00218 <span class="keywordflow">if</span> (ok)
<a name="l00219"></a>00219 *ok = <span class="keyword">true</span>;
<a name="l00220"></a>00220 <span class="keywordflow">return</span> keyvals;
<a name="l00221"></a>00221
<a name="l00222"></a>00222 <a class="code" href="namespacetc.html#aa7353218fd7baef0876bbb422ce818af">error</a>:
<a name="l00223"></a>00223 <span class="keywordflow">if</span> (ok)
<a name="l00224"></a>00224 *ok = <span class="keyword">false</span>;
<a name="l00225"></a>00225 <span class="keywordflow">return</span> QHash<QString,QString>();
<a name="l00226"></a>00226 }
<a name="l00227"></a>00227 <span class="comment"></span>
<a name="l00228"></a>00228 <span class="comment">/** Parses a series of command line arguments from <b>str</b>. If <b>str</b></span>
<a name="l00229"></a>00229 <span class="comment"> * was unable to be parsed, <b>ok</b> is set to false. */</span>
<a name="l00230"></a>00230 QStringList
<a name="l00231"></a><a class="code" href="stringutil_8h.html#a19cb9997932739fc934f93c0d1ed6f5a">00231</a> <a class="code" href="stringutil_8cpp.html#af8d2b1877609953a0b67d43665b773b4">string_parse_arguments</a>(<span class="keyword">const</span> QString &str, <span class="keywordtype">bool</span> *ok)
<a name="l00232"></a>00232 {
<a name="l00233"></a>00233 QStringList args;
<a name="l00234"></a>00234 <span class="keywordtype">int</span> <a class="code" href="html_8cpp.html#a4a5dba6492ea149585950c59c210ff47">i</a>, len;
<a name="l00235"></a>00235 <span class="keywordtype">bool</span> tmp_ok;
<a name="l00236"></a>00236
<a name="l00237"></a>00237 i = 0;
<a name="l00238"></a>00238 len = str.length();
<a name="l00239"></a>00239 <span class="keywordflow">while</span> (i < len && str[i].isSpace())
<a name="l00240"></a>00240 i++; <span class="comment">/* Skip initial whitespace */</span>
<a name="l00241"></a>00241 <span class="keywordflow">while</span> (i < len) {
<a name="l00242"></a>00242 QString arg;
<a name="l00243"></a>00243
<a name="l00244"></a>00244 <span class="keywordflow">if</span> (str[i] == <span class="charliteral">'\"'</span>) {
<a name="l00245"></a>00245 <span class="comment">/* The value is wrapped in quotes */</span>
<a name="l00246"></a>00246 arg.append(str[i]);
<a name="l00247"></a>00247 <span class="keywordflow">while</span> (++i < len) {
<a name="l00248"></a>00248 arg.append(str[i]);
<a name="l00249"></a>00249 <span class="keywordflow">if</span> (str[i] == <span class="charliteral">'\\'</span>) {
<a name="l00250"></a>00250 <span class="keywordflow">if</span> (++i == len)
<a name="l00251"></a>00251 <span class="keywordflow">goto</span> <a class="code" href="namespacetc.html#aa7353218fd7baef0876bbb422ce818af">error</a>;
<a name="l00252"></a>00252 arg.append(str[i]);
<a name="l00253"></a>00253 } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (str[i] == <span class="charliteral">'\"'</span>) {
<a name="l00254"></a>00254 i++;
<a name="l00255"></a>00255 <span class="keywordflow">break</span>;
<a name="l00256"></a>00256 }
<a name="l00257"></a>00257 }
<a name="l00258"></a>00258 arg = <a class="code" href="stringutil_8cpp.html#a559eaa8ad9e4fab04d5bb5b6732283ea">string_unescape</a>(arg, &tmp_ok);
<a name="l00259"></a>00259 <span class="keywordflow">if</span> (!tmp_ok)
<a name="l00260"></a>00260 <span class="keywordflow">goto</span> <a class="code" href="namespacetc.html#aa7353218fd7baef0876bbb422ce818af">error</a>;
<a name="l00261"></a>00261 args << arg;
<a name="l00262"></a>00262 } <span class="keywordflow">else</span> {
<a name="l00263"></a>00263 <span class="comment">/* The value was not wrapped in quotes */</span>
<a name="l00264"></a>00264 <span class="keywordflow">while</span> (i < len && !str[i].isSpace())
<a name="l00265"></a>00265 arg.append(str[i++]);
<a name="l00266"></a>00266 args << arg;
<a name="l00267"></a>00267 }
<a name="l00268"></a>00268 <span class="keywordflow">while</span> (i < len && str[i].isSpace())
<a name="l00269"></a>00269 i++;
<a name="l00270"></a>00270 }
<a name="l00271"></a>00271
<a name="l00272"></a>00272 <span class="keywordflow">if</span> (ok)
<a name="l00273"></a>00273 *ok = <span class="keyword">true</span>;
<a name="l00274"></a>00274 <span class="keywordflow">return</span> args;
<a name="l00275"></a>00275
<a name="l00276"></a>00276 <a class="code" href="namespacetc.html#aa7353218fd7baef0876bbb422ce818af">error</a>:
<a name="l00277"></a>00277 <span class="keywordflow">if</span> (ok)
<a name="l00278"></a>00278 *ok = <span class="keyword">false</span>;
<a name="l00279"></a>00279 <span class="keywordflow">return</span> QStringList();
<a name="l00280"></a>00280 }
<a name="l00281"></a>00281 <span class="comment"></span>
<a name="l00282"></a>00282 <span class="comment">/** Formats the list of command line arguments in <b>args</b> as a string.</span>
<a name="l00283"></a>00283 <span class="comment"> * Arguments that contain ' ', '\', or '"' tokens will be escaped and</span>
<a name="l00284"></a>00284 <span class="comment"> * wrapped in double quotes. */</span>
<a name="l00285"></a>00285 QString
<a name="l00286"></a><a class="code" href="stringutil_8h.html#ac226e398784e0eac1842837f552d740b">00286</a> <a class="code" href="stringutil_8cpp.html#ac226e398784e0eac1842837f552d740b">string_format_arguments</a>(<span class="keyword">const</span> QStringList &args)
<a name="l00287"></a>00287 {
<a name="l00288"></a>00288 QStringList out;
<a name="l00289"></a>00289 <span class="keywordflow">foreach</span> (QString arg, args) {
<a name="l00290"></a>00290 <span class="keywordflow">if</span> (arg.contains(<span class="stringliteral">"\""</span>) || arg.contains(<span class="stringliteral">"\\"</span>) || arg.contains(<span class="stringliteral">" "</span>))
<a name="l00291"></a>00291 out << <a class="code" href="stringutil_8cpp.html#a2323f625d9f361167e0455447c3fc83a">string_escape</a>(arg);
<a name="l00292"></a>00292 <span class="keywordflow">else</span>
<a name="l00293"></a>00293 out << arg;
<a name="l00294"></a>00294 }
<a name="l00295"></a>00295 <span class="keywordflow">return</span> out.join(<span class="stringliteral">" "</span>);
<a name="l00296"></a>00296 }
<a name="l00297"></a>00297 <span class="comment"></span>
<a name="l00298"></a>00298 <span class="comment">/** Returns true if <b>str</b> is a valid hexademical string. Returns false</span>
<a name="l00299"></a>00299 <span class="comment"> * otherwise. */</span>
<a name="l00300"></a>00300 <span class="keywordtype">bool</span>
<a name="l00301"></a><a class="code" href="stringutil_8h.html#a3a137a7377e9df6cdb6be274238e505e">00301</a> <a class="code" href="stringutil_8cpp.html#a3a137a7377e9df6cdb6be274238e505e">string_is_hex</a>(<span class="keyword">const</span> QString &str)
<a name="l00302"></a>00302 {
<a name="l00303"></a>00303 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> <a class="code" href="html_8cpp.html#a4a5dba6492ea149585950c59c210ff47">i</a> = 0; <a class="code" href="html_8cpp.html#a4a5dba6492ea149585950c59c210ff47">i</a> < str.length(); <a class="code" href="html_8cpp.html#a4a5dba6492ea149585950c59c210ff47">i</a>++) {
<a name="l00304"></a>00304 <span class="keywordtype">char</span> c = str[<a class="code" href="html_8cpp.html#a4a5dba6492ea149585950c59c210ff47">i</a>].toUpper().toAscii();
<a name="l00305"></a>00305 <span class="keywordflow">if</span> ((c < 'A' || c > <span class="charliteral">'F'</span>) && (c < '0' || c > <span class="charliteral">'9'</span>))
<a name="l00306"></a>00306 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00307"></a>00307 }
<a name="l00308"></a>00308 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00309"></a>00309 }
<a name="l00310"></a>00310 <span class="comment"></span>
<a name="l00311"></a>00311 <span class="comment">/** Returns a human-readable description of the time elapsed given by</span>
<a name="l00312"></a>00312 <span class="comment"> * <b>seconds</b>, broken down into days, hours, minutes and seconds. */</span>
<a name="l00313"></a>00313 QString
<a name="l00314"></a><a class="code" href="stringutil_8h.html#adc62dcb23eb63ad2cc3373689091aee3">00314</a> <a class="code" href="stringutil_8cpp.html#adc62dcb23eb63ad2cc3373689091aee3">string_format_uptime</a>(quint64 seconds)
<a name="l00315"></a>00315 {
<a name="l00316"></a>00316 QString uptime;
<a name="l00317"></a>00317 <span class="keywordtype">int</span> secs = (seconds % 60);
<a name="l00318"></a>00318 <span class="keywordtype">int</span> mins = (seconds / 60 % 60);
<a name="l00319"></a>00319 <span class="keywordtype">int</span> hours = (seconds / 3600 % 24);
<a name="l00320"></a>00320 <span class="keywordtype">int</span> days = (seconds / 86400);
<a name="l00321"></a>00321
<a name="l00322"></a>00322 <span class="keywordflow">if</span> (days)
<a name="l00323"></a>00323 uptime += qApp->translate(<span class="stringliteral">"stringutil.h"</span>, <span class="stringliteral">"%1 days "</span>).arg(days);
<a name="l00324"></a>00324 <span class="keywordflow">if</span> (hours)
<a name="l00325"></a>00325 uptime += qApp->translate(<span class="stringliteral">"stringutil.h"</span>, <span class="stringliteral">"%1 hours "</span>).arg(hours);
<a name="l00326"></a>00326 <span class="keywordflow">if</span> (mins)
<a name="l00327"></a>00327 uptime += qApp->translate(<span class="stringliteral">"stringutil.h"</span>, <span class="stringliteral">"%1 mins "</span>).arg(mins);
<a name="l00328"></a>00328 <span class="keywordflow">if</span> (secs)
<a name="l00329"></a>00329 uptime += qApp->translate(<span class="stringliteral">"stringutil.h"</span>, <span class="stringliteral">"%1 secs"</span>).arg(secs);
<a name="l00330"></a>00330
<a name="l00331"></a>00331 <span class="keywordflow">return</span> uptime;
<a name="l00332"></a>00332 }
<a name="l00333"></a>00333 <span class="comment"></span>
<a name="l00334"></a>00334 <span class="comment">/** Returns a string representation of <b>date</b> formatted according to</span>
<a name="l00335"></a>00335 <span class="comment"> * "yyyy-MM-dd HH:mm:ss". */</span>
<a name="l00336"></a>00336 QString
<a name="l00337"></a><a class="code" href="stringutil_8h.html#a457c2b0b9a0e212819ab340227117440">00337</a> <a class="code" href="stringutil_8cpp.html#a457c2b0b9a0e212819ab340227117440">string_format_datetime</a>(<span class="keyword">const</span> QDateTime &date)
<a name="l00338"></a>00338 {
<a name="l00339"></a>00339 <span class="keywordflow">return</span> date.toString(<span class="stringliteral">"yyyy-MM-dd HH:mm:ss"</span>);
<a name="l00340"></a>00340 }
<a name="l00341"></a>00341 <span class="comment"></span>
<a name="l00342"></a>00342 <span class="comment">/** Returns a string representation of <b>bytes</b> with the appropriate</span>
<a name="l00343"></a>00343 <span class="comment"> * suffix of either "B/s", "KB/s", "MB/s" or "GB/s". */</span>
<a name="l00344"></a>00344 QString
<a name="l00345"></a><a class="code" href="stringutil_8h.html#a2be37f42e0b68ec6af355f453c80f1df">00345</a> <a class="code" href="stringutil_8cpp.html#a2be37f42e0b68ec6af355f453c80f1df">string_format_bandwidth</a>(quint64 bytes)
<a name="l00346"></a>00346 {
<a name="l00347"></a>00347 <span class="keywordflow">if</span> (bytes < 1024)
<a name="l00348"></a>00348 <span class="keywordflow">return</span> qApp->translate(<span class="stringliteral">"stringutil.h"</span>, <span class="stringliteral">"%1 B/s"</span>).arg(bytes);
<a name="l00349"></a>00349 <span class="keywordflow">if</span> (bytes < 1048576)
<a name="l00350"></a>00350 <span class="keywordflow">return</span> qApp->translate(<span class="stringliteral">"stringutil.h"</span>, <span class="stringliteral">"%1 KB/s"</span>).arg(bytes/1024.0, 0, <span class="charliteral">'f'</span>, 2);
<a name="l00351"></a>00351 <span class="keywordflow">if</span> (bytes < 1073741824)
<a name="l00352"></a>00352 <span class="keywordflow">return</span> qApp->translate(<span class="stringliteral">"stringutil.h"</span>, <span class="stringliteral">"%1 MB/s"</span>).arg(bytes/1048576.0, 0, <span class="charliteral">'f'</span>, 2);
<a name="l00353"></a>00353
<a name="l00354"></a>00354 <span class="keywordflow">return</span> qApp->translate(<span class="stringliteral">"stringutil.h"</span>, <span class="stringliteral">"%1 GB/s"</span>).arg(bytes/1073741824.0, 0, <span class="charliteral">'f'</span>, 2);
<a name="l00355"></a>00355 }
<a name="l00356"></a>00356
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