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<hr><h1>utf8nfc.cpp</h1><div class="fragment"><pre>00001 <font class="comment">/******************************************************************************</font>
00002 <font class="comment">*</font>
00003 <font class="comment">* utf8nfc - SWFilter decendant to perform NFC (canonical composition</font>
00004 <font class="comment">* normalization) on UTF-8 text</font>
00005 <font class="comment">*/</font>
00006
00007 <font class="preprocessor">#ifdef _ICU_</font>
00008 <font class="preprocessor"></font>
00009 <font class="preprocessor">#include <stdlib.h></font>
00010 <font class="preprocessor">#include <string.h></font>
00011
00012 <font class="preprocessor">#ifdef __GNUC__</font>
00013 <font class="preprocessor"></font><font class="preprocessor">#include <unixstr.h></font>
00014 <font class="preprocessor">#endif</font>
00015 <font class="preprocessor"></font>
00016 <font class="preprocessor">#include <utf8nfc.h></font>
00017
00018 UTF8NFC::UTF8NFC() {
00019 conv = ucnv_open(<font class="stringliteral">"UTF-8"</font>, &err);
00020 }
00021
00022 UTF8NFC::~UTF8NFC() {
00023 ucnv_close(conv);
00024 }
00025
00026 <font class="keywordtype">char</font> UTF8NFC::ProcessText(<font class="keywordtype">char</font> *text, <font class="keywordtype">int</font> maxlen, <font class="keyword">const</font> <a class="code" href="class_s_w_key.html">SWKey</a> *key, <font class="keyword">const</font> <a class="code" href="class_s_w_module.html">SWModule</a> *module)
00027 {
00028 int32_t len = strlen(text) * 2;
00029 source = <font class="keyword">new</font> UChar[len + 1]; <font class="comment">//each char could become a surrogate pair</font>
00030
00031 <font class="comment">// Convert UTF-8 string to UTF-16 (UChars)</font>
00032 len = ucnv_toUChars(conv, source, len, text, -1, &err);
00033 target = <font class="keyword">new</font> UChar[len + 1];
00034
00035 <font class="comment">//canonical composition</font>
00036 unorm_normalize(source, len, UNORM_NFC, 0, target, len, &err);
00037
00038 ucnv_fromUChars(conv, text, maxlen, target, -1, &err);
00039
00040 <font class="keyword">delete</font> [] source;
00041 <font class="keyword">delete</font> [] target;
00042
00043 <font class="keywordflow">return</font> 0;
00044 }
00045
00046 <font class="preprocessor">#endif</font>
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