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<h1>src/libsphinxbase/util/case.c</h1>  </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* -*- c-basic-offset: 4; indent-tabs-mode: nil -*- */</span>
<a name="l00002"></a>00002 <span class="comment">/* ====================================================================</span>
<a name="l00003"></a>00003 <span class="comment"> * Copyright (c) 1999-2004 Carnegie Mellon University.  All rights</span>
<a name="l00004"></a>00004 <span class="comment"> * reserved.</span>
<a name="l00005"></a>00005 <span class="comment"> *</span>
<a name="l00006"></a>00006 <span class="comment"> * Redistribution and use in source and binary forms, with or without</span>
<a name="l00007"></a>00007 <span class="comment"> * modification, are permitted provided that the following conditions</span>
<a name="l00008"></a>00008 <span class="comment"> * are met:</span>
<a name="l00009"></a>00009 <span class="comment"> *</span>
<a name="l00010"></a>00010 <span class="comment"> * 1. Redistributions of source code must retain the above copyright</span>
<a name="l00011"></a>00011 <span class="comment"> *    notice, this list of conditions and the following disclaimer. </span>
<a name="l00012"></a>00012 <span class="comment"> *</span>
<a name="l00013"></a>00013 <span class="comment"> * 2. Redistributions in binary form must reproduce the above copyright</span>
<a name="l00014"></a>00014 <span class="comment"> *    notice, this list of conditions and the following disclaimer in</span>
<a name="l00015"></a>00015 <span class="comment"> *    the documentation and/or other materials provided with the</span>
<a name="l00016"></a>00016 <span class="comment"> *    distribution.</span>
<a name="l00017"></a>00017 <span class="comment"> *</span>
<a name="l00018"></a>00018 <span class="comment"> * This work was supported in part by funding from the Defense Advanced </span>
<a name="l00019"></a>00019 <span class="comment"> * Research Projects Agency and the National Science Foundation of the </span>
<a name="l00020"></a>00020 <span class="comment"> * United States of America, and the CMU Sphinx Speech Consortium.</span>
<a name="l00021"></a>00021 <span class="comment"> *</span>
<a name="l00022"></a>00022 <span class="comment"> * THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS&#39;&#39; AND </span>
<a name="l00023"></a>00023 <span class="comment"> * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, </span>
<a name="l00024"></a>00024 <span class="comment"> * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR</span>
<a name="l00025"></a>00025 <span class="comment"> * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY</span>
<a name="l00026"></a>00026 <span class="comment"> * NOR ITS EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,</span>
<a name="l00027"></a>00027 <span class="comment"> * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT </span>
<a name="l00028"></a>00028 <span class="comment"> * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, </span>
<a name="l00029"></a>00029 <span class="comment"> * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY </span>
<a name="l00030"></a>00030 <span class="comment"> * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT </span>
<a name="l00031"></a>00031 <span class="comment"> * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE </span>
<a name="l00032"></a>00032 <span class="comment"> * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span>
<a name="l00033"></a>00033 <span class="comment"> *</span>
<a name="l00034"></a>00034 <span class="comment"> * ====================================================================</span>
<a name="l00035"></a>00035 <span class="comment"> *</span>
<a name="l00036"></a>00036 <span class="comment"> */</span>
<a name="l00037"></a>00037 <span class="comment">/*</span>
<a name="l00038"></a>00038 <span class="comment"> * case.c -- Upper/lower case conversion routines</span>
<a name="l00039"></a>00039 <span class="comment"> *</span>
<a name="l00040"></a>00040 <span class="comment"> * **********************************************</span>
<a name="l00041"></a>00041 <span class="comment"> * CMU ARPA Speech Project</span>
<a name="l00042"></a>00042 <span class="comment"> *</span>
<a name="l00043"></a>00043 <span class="comment"> * Copyright (c) 1999 Carnegie Mellon University.</span>
<a name="l00044"></a>00044 <span class="comment"> * ALL RIGHTS RESERVED.</span>
<a name="l00045"></a>00045 <span class="comment"> * **********************************************</span>
<a name="l00046"></a>00046 <span class="comment"> * </span>
<a name="l00047"></a>00047 <span class="comment"> * HISTORY</span>
<a name="l00048"></a>00048 <span class="comment"> * $Log: case.c,v $</span>
<a name="l00049"></a>00049 <span class="comment"> * Revision 1.7  2005/06/22 02:58:54  arthchan2003</span>
<a name="l00050"></a>00050 <span class="comment"> * Added  keyword</span>
<a name="l00051"></a>00051 <span class="comment"> *</span>
<a name="l00052"></a>00052 <span class="comment"> * Revision 1.3  2005/03/30 01:22:48  archan</span>
<a name="l00053"></a>00053 <span class="comment"> * Fixed mistakes in last updates. Add</span>
<a name="l00054"></a>00054 <span class="comment"> *</span>
<a name="l00055"></a>00055 <span class="comment"> * </span>
<a name="l00056"></a>00056 <span class="comment"> * 18-Jun-97    M K Ravishankar (rkm@cs.cmu.edu) at Carnegie Mellon</span>
<a name="l00057"></a>00057 <span class="comment"> *              Added strcmp_nocase.  Moved UPPER_CASE and LOWER_CASE definitions to .h.</span>
<a name="l00058"></a>00058 <span class="comment"> * </span>
<a name="l00059"></a>00059 <span class="comment"> * 16-Feb-97    M K Ravishankar (rkm@cs.cmu.edu) at Carnegie Mellon</span>
<a name="l00060"></a>00060 <span class="comment"> *              Created.</span>
<a name="l00061"></a>00061 <span class="comment"> */</span>
<a name="l00062"></a>00062 
<a name="l00063"></a>00063 
<a name="l00064"></a>00064 <span class="preprocessor">#include &lt;stdlib.h&gt;</span>
<a name="l00065"></a>00065 <span class="preprocessor">#include &lt;assert.h&gt;</span>
<a name="l00066"></a>00066 
<a name="l00067"></a>00067 <span class="preprocessor">#include &quot;sphinxbase/case.h&quot;</span>
<a name="l00068"></a>00068 <span class="preprocessor">#include &quot;sphinxbase/err.h&quot;</span>
<a name="l00069"></a>00069 
<a name="l00070"></a>00070 
<a name="l00071"></a>00071 <span class="keywordtype">void</span>
<a name="l00072"></a>00072 <a class="code" href="case_8h.html#ac0e30dac40f15762f39270f65bd8cdba" title="Convert str to all lower case.">lcase</a>(<span class="keyword">register</span> <span class="keywordtype">char</span> *cp)
<a name="l00073"></a>00073 {
<a name="l00074"></a>00074     <span class="keywordflow">if</span> (cp) {
<a name="l00075"></a>00075         <span class="keywordflow">while</span> (*cp) {
<a name="l00076"></a>00076             *cp = <a class="code" href="case_8h.html#a44403ce2c3f4378aca12ffb732f24cef" title="Return lower case form for c.">LOWER_CASE</a>(*cp);
<a name="l00077"></a>00077             cp++;
<a name="l00078"></a>00078         }
<a name="l00079"></a>00079     }
<a name="l00080"></a>00080 }
<a name="l00081"></a>00081 
<a name="l00082"></a>00082 <span class="keywordtype">void</span>
<a name="l00083"></a>00083 <a class="code" href="case_8h.html#a79d99e36b7c2c36dcc6f7f0df746384e" title="Convert str to all upper case.">ucase</a>(<span class="keyword">register</span> <span class="keywordtype">char</span> *cp)
<a name="l00084"></a>00084 {
<a name="l00085"></a>00085     <span class="keywordflow">if</span> (cp) {
<a name="l00086"></a>00086         <span class="keywordflow">while</span> (*cp) {
<a name="l00087"></a>00087             *cp = <a class="code" href="case_8h.html#a3299c549655d5af1fcbc384ee7fd68e3" title="Return upper case form for c.">UPPER_CASE</a>(*cp);
<a name="l00088"></a>00088             cp++;
<a name="l00089"></a>00089         }
<a name="l00090"></a>00090     }
<a name="l00091"></a>00091 }
<a name="l00092"></a>00092 
<a name="l00093"></a>00093 int32
<a name="l00094"></a><a class="code" href="case_8h.html#ad276a997bd6709d986aa6e1e4e06c210">00094</a> <a class="code" href="case_8h.html#ad276a997bd6709d986aa6e1e4e06c210" title="(FIXME! The implementation is incorrect!) Case insensitive string compare.">strcmp_nocase</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *str1, <span class="keyword">const</span> <span class="keywordtype">char</span> *str2)
<a name="l00095"></a>00095 {
<a name="l00096"></a>00096     <span class="keywordtype">char</span> c1, c2;
<a name="l00097"></a>00097 
<a name="l00098"></a>00098     <span class="keywordflow">if</span> (str1 == str2)
<a name="l00099"></a>00099         <span class="keywordflow">return</span> 0;
<a name="l00100"></a>00100     <span class="keywordflow">if</span> (str1 &amp;&amp; str2) {
<a name="l00101"></a>00101         <span class="keywordflow">for</span> (;;) {
<a name="l00102"></a>00102             c1 = *(str1++);
<a name="l00103"></a>00103             c1 = <a class="code" href="case_8h.html#a3299c549655d5af1fcbc384ee7fd68e3" title="Return upper case form for c.">UPPER_CASE</a>(c1);
<a name="l00104"></a>00104             c2 = *(str2++);
<a name="l00105"></a>00105             c2 = <a class="code" href="case_8h.html#a3299c549655d5af1fcbc384ee7fd68e3" title="Return upper case form for c.">UPPER_CASE</a>(c2);
<a name="l00106"></a>00106             <span class="keywordflow">if</span> (c1 != c2)
<a name="l00107"></a>00107                 <span class="keywordflow">return</span> (c1 - c2);
<a name="l00108"></a>00108             <span class="keywordflow">if</span> (c1 == <span class="charliteral">&#39;\0&#39;</span>)
<a name="l00109"></a>00109                 <span class="keywordflow">return</span> 0;
<a name="l00110"></a>00110         }
<a name="l00111"></a>00111     }
<a name="l00112"></a>00112     <span class="keywordflow">else</span>
<a name="l00113"></a>00113         <span class="keywordflow">return</span> (str1 == NULL) ? -1 : 1;
<a name="l00114"></a>00114 
<a name="l00115"></a>00115     <span class="keywordflow">return</span> 0;
<a name="l00116"></a>00116 }
<a name="l00117"></a>00117 
<a name="l00118"></a>00118 int32
<a name="l00119"></a><a class="code" href="case_8h.html#ae7c2a7f29d72b9516a947f5c69a043db">00119</a> <a class="code" href="case_8h.html#ae7c2a7f29d72b9516a947f5c69a043db" title="Like strcmp_nocase() but with a maximum length.">strncmp_nocase</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *str1, <span class="keyword">const</span> <span class="keywordtype">char</span> *str2, <span class="keywordtype">size_t</span> len)
<a name="l00120"></a>00120 {
<a name="l00121"></a>00121     <span class="keywordtype">char</span> c1, c2;
<a name="l00122"></a>00122 
<a name="l00123"></a>00123     <span class="keywordflow">if</span> (str1 &amp;&amp; str2) {
<a name="l00124"></a>00124         <span class="keywordtype">size_t</span> n;
<a name="l00125"></a>00125 
<a name="l00126"></a>00126         <span class="keywordflow">for</span> (n = 0; n &lt; len; ++n) {
<a name="l00127"></a>00127             c1 = *(str1++);
<a name="l00128"></a>00128             c1 = <a class="code" href="case_8h.html#a3299c549655d5af1fcbc384ee7fd68e3" title="Return upper case form for c.">UPPER_CASE</a>(c1);
<a name="l00129"></a>00129             c2 = *(str2++);
<a name="l00130"></a>00130             c2 = <a class="code" href="case_8h.html#a3299c549655d5af1fcbc384ee7fd68e3" title="Return upper case form for c.">UPPER_CASE</a>(c2);
<a name="l00131"></a>00131             <span class="keywordflow">if</span> (c1 != c2)
<a name="l00132"></a>00132                 <span class="keywordflow">return</span> (c1 - c2);
<a name="l00133"></a>00133             <span class="keywordflow">if</span> (c1 == <span class="charliteral">&#39;\0&#39;</span>)
<a name="l00134"></a>00134                 <span class="keywordflow">return</span> 0;
<a name="l00135"></a>00135         }
<a name="l00136"></a>00136     }
<a name="l00137"></a>00137     <span class="keywordflow">else</span>
<a name="l00138"></a>00138         <span class="keywordflow">return</span> (str1 == NULL) ? -1 : 1;
<a name="l00139"></a>00139 
<a name="l00140"></a>00140     <span class="keywordflow">return</span> 0;
<a name="l00141"></a>00141 }
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