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<h1>utf16.h</h1><a href="utf16_8h.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">*******************************************************************************</span>
<a name="l00003"></a>00003 <span class="comment">*</span>
<a name="l00004"></a>00004 <span class="comment">* Copyright (C) 1999-2006, International Business Machines</span>
<a name="l00005"></a>00005 <span class="comment">* Corporation and others. All Rights Reserved.</span>
<a name="l00006"></a>00006 <span class="comment">*</span>
<a name="l00007"></a>00007 <span class="comment">*******************************************************************************</span>
<a name="l00008"></a>00008 <span class="comment">* file name: utf16.h</span>
<a name="l00009"></a>00009 <span class="comment">* encoding: US-ASCII</span>
<a name="l00010"></a>00010 <span class="comment">* tab size: 8 (not used)</span>
<a name="l00011"></a>00011 <span class="comment">* indentation:4</span>
<a name="l00012"></a>00012 <span class="comment">*</span>
<a name="l00013"></a>00013 <span class="comment">* created on: 1999sep09</span>
<a name="l00014"></a>00014 <span class="comment">* created by: Markus W. Scherer</span>
<a name="l00015"></a>00015 <span class="comment">*/</span>
<a name="l00016"></a>00016
<a name="l00034"></a>00034 <span class="preprocessor">#ifndef __UTF16_H__</span>
<a name="l00035"></a>00035 <span class="preprocessor"></span><span class="preprocessor">#define __UTF16_H__</span>
<a name="l00036"></a>00036 <span class="preprocessor"></span>
<a name="l00037"></a>00037 <span class="comment">/* utf.h must be included first. */</span>
<a name="l00038"></a>00038 <span class="preprocessor">#ifndef __UTF_H__</span>
<a name="l00039"></a>00039 <span class="preprocessor"></span><span class="preprocessor"># include "<a class="code" href="utf_8h.html">unicode/utf.h</a>"</span>
<a name="l00040"></a>00040 <span class="preprocessor">#endif</span>
<a name="l00041"></a>00041 <span class="preprocessor"></span>
<a name="l00042"></a>00042 <span class="comment">/* single-code point definitions -------------------------------------------- */</span>
<a name="l00043"></a>00043
<a name="l00050"></a><a class="code" href="utf16_8h.html#362166cce303677d00efda56f88fe2d6">00050</a> <span class="preprocessor">#define U16_IS_SINGLE(c) !U_IS_SURROGATE(c)</span>
<a name="l00051"></a>00051 <span class="preprocessor"></span>
<a name="l00058"></a><a class="code" href="utf16_8h.html#d7693c2144d426edee64b2b0de5bbfa8">00058</a> <span class="preprocessor">#define U16_IS_LEAD(c) (((c)&0xfffffc00)==0xd800)</span>
<a name="l00059"></a>00059 <span class="preprocessor"></span>
<a name="l00066"></a><a class="code" href="utf16_8h.html#3363c3d650a6161795ed44c2b553e37d">00066</a> <span class="preprocessor">#define U16_IS_TRAIL(c) (((c)&0xfffffc00)==0xdc00)</span>
<a name="l00067"></a>00067 <span class="preprocessor"></span>
<a name="l00074"></a><a class="code" href="utf16_8h.html#b196de43bd882d206b8d21e99865c9d8">00074</a> <span class="preprocessor">#define U16_IS_SURROGATE(c) U_IS_SURROGATE(c)</span>
<a name="l00075"></a>00075 <span class="preprocessor"></span>
<a name="l00083"></a><a class="code" href="utf16_8h.html#a323683efe631166191d5734342e4fad">00083</a> <span class="preprocessor">#define U16_IS_SURROGATE_LEAD(c) (((c)&0x400)==0)</span>
<a name="l00084"></a>00084 <span class="preprocessor"></span>
<a name="l00089"></a><a class="code" href="utf16_8h.html#112d75dd554993f9579b0db50bfc0eed">00089</a> <span class="preprocessor">#define U16_SURROGATE_OFFSET ((0xd800<<10UL)+0xdc00-0x10000)</span>
<a name="l00090"></a>00090 <span class="preprocessor"></span>
<a name="l00102"></a><a class="code" href="utf16_8h.html#cbfc54a95d041a068e9a6f34bfa939ef">00102</a> <span class="preprocessor">#define U16_GET_SUPPLEMENTARY(lead, trail) \</span>
<a name="l00103"></a>00103 <span class="preprocessor"> (((UChar32)(lead)<<10UL)+(UChar32)(trail)-U16_SURROGATE_OFFSET)</span>
<a name="l00104"></a>00104 <span class="preprocessor"></span>
<a name="l00105"></a>00105
<a name="l00113"></a><a class="code" href="utf16_8h.html#8773cfcf6f3a54114a7b34bc185fae34">00113</a> <span class="preprocessor">#define U16_LEAD(supplementary) (UChar)(((supplementary)>>10)+0xd7c0)</span>
<a name="l00114"></a>00114 <span class="preprocessor"></span>
<a name="l00122"></a><a class="code" href="utf16_8h.html#25a4c7a3fc918966024ec53322a08a2c">00122</a> <span class="preprocessor">#define U16_TRAIL(supplementary) (UChar)(((supplementary)&0x3ff)|0xdc00)</span>
<a name="l00123"></a>00123 <span class="preprocessor"></span>
<a name="l00131"></a><a class="code" href="utf16_8h.html#7f3b3f3ab7a096709b09904948c31be3">00131</a> <span class="preprocessor">#define U16_LENGTH(c) ((uint32_t)(c)<=0xffff ? 1 : 2)</span>
<a name="l00132"></a>00132 <span class="preprocessor"></span>
<a name="l00138"></a><a class="code" href="utf16_8h.html#132364039b672f95180c27693ee20028">00138</a> <span class="preprocessor">#define U16_MAX_LENGTH 2</span>
<a name="l00139"></a>00139 <span class="preprocessor"></span>
<a name="l00157"></a><a class="code" href="utf16_8h.html#800101a422d488ff8e2d13c9e0a7eb4a">00157</a> <span class="preprocessor">#define U16_GET_UNSAFE(s, i, c) { \</span>
<a name="l00158"></a>00158 <span class="preprocessor"> (c)=(s)[i]; \</span>
<a name="l00159"></a>00159 <span class="preprocessor"> if(U16_IS_SURROGATE(c)) { \</span>
<a name="l00160"></a>00160 <span class="preprocessor"> if(U16_IS_SURROGATE_LEAD(c)) { \</span>
<a name="l00161"></a>00161 <span class="preprocessor"> (c)=U16_GET_SUPPLEMENTARY((c), (s)[(i)+1]); \</span>
<a name="l00162"></a>00162 <span class="preprocessor"> } else { \</span>
<a name="l00163"></a>00163 <span class="preprocessor"> (c)=U16_GET_SUPPLEMENTARY((s)[(i)-1], (c)); \</span>
<a name="l00164"></a>00164 <span class="preprocessor"> } \</span>
<a name="l00165"></a>00165 <span class="preprocessor"> } \</span>
<a name="l00166"></a>00166 <span class="preprocessor">}</span>
<a name="l00167"></a>00167 <span class="preprocessor"></span>
<a name="l00188"></a><a class="code" href="utf16_8h.html#15d0f767b0a5c8c92816e914cce8e490">00188</a> <span class="preprocessor">#define U16_GET(s, start, i, length, c) { \</span>
<a name="l00189"></a>00189 <span class="preprocessor"> (c)=(s)[i]; \</span>
<a name="l00190"></a>00190 <span class="preprocessor"> if(U16_IS_SURROGATE(c)) { \</span>
<a name="l00191"></a>00191 <span class="preprocessor"> uint16_t __c2; \</span>
<a name="l00192"></a>00192 <span class="preprocessor"> if(U16_IS_SURROGATE_LEAD(c)) { \</span>
<a name="l00193"></a>00193 <span class="preprocessor"> if((i)+1<(length) && U16_IS_TRAIL(__c2=(s)[(i)+1])) { \</span>
<a name="l00194"></a>00194 <span class="preprocessor"> (c)=U16_GET_SUPPLEMENTARY((c), __c2); \</span>
<a name="l00195"></a>00195 <span class="preprocessor"> } \</span>
<a name="l00196"></a>00196 <span class="preprocessor"> } else { \</span>
<a name="l00197"></a>00197 <span class="preprocessor"> if((i)-1>=(start) && U16_IS_LEAD(__c2=(s)[(i)-1])) { \</span>
<a name="l00198"></a>00198 <span class="preprocessor"> (c)=U16_GET_SUPPLEMENTARY(__c2, (c)); \</span>
<a name="l00199"></a>00199 <span class="preprocessor"> } \</span>
<a name="l00200"></a>00200 <span class="preprocessor"> } \</span>
<a name="l00201"></a>00201 <span class="preprocessor"> } \</span>
<a name="l00202"></a>00202 <span class="preprocessor">}</span>
<a name="l00203"></a>00203 <span class="preprocessor"></span>
<a name="l00204"></a>00204 <span class="comment">/* definitions with forward iteration --------------------------------------- */</span>
<a name="l00205"></a>00205
<a name="l00225"></a><a class="code" href="utf16_8h.html#0186db357027cee928da04b3b9b3c05e">00225</a> <span class="preprocessor">#define U16_NEXT_UNSAFE(s, i, c) { \</span>
<a name="l00226"></a>00226 <span class="preprocessor"> (c)=(s)[(i)++]; \</span>
<a name="l00227"></a>00227 <span class="preprocessor"> if(U16_IS_LEAD(c)) { \</span>
<a name="l00228"></a>00228 <span class="preprocessor"> (c)=U16_GET_SUPPLEMENTARY((c), (s)[(i)++]); \</span>
<a name="l00229"></a>00229 <span class="preprocessor"> } \</span>
<a name="l00230"></a>00230 <span class="preprocessor">}</span>
<a name="l00231"></a>00231 <span class="preprocessor"></span>
<a name="l00252"></a><a class="code" href="utf16_8h.html#1a6e1c638ac5ba466d13fa83949b740b">00252</a> <span class="preprocessor">#define U16_NEXT(s, i, length, c) { \</span>
<a name="l00253"></a>00253 <span class="preprocessor"> (c)=(s)[(i)++]; \</span>
<a name="l00254"></a>00254 <span class="preprocessor"> if(U16_IS_LEAD(c)) { \</span>
<a name="l00255"></a>00255 <span class="preprocessor"> uint16_t __c2; \</span>
<a name="l00256"></a>00256 <span class="preprocessor"> if((i)<(length) && U16_IS_TRAIL(__c2=(s)[(i)])) { \</span>
<a name="l00257"></a>00257 <span class="preprocessor"> ++(i); \</span>
<a name="l00258"></a>00258 <span class="preprocessor"> (c)=U16_GET_SUPPLEMENTARY((c), __c2); \</span>
<a name="l00259"></a>00259 <span class="preprocessor"> } \</span>
<a name="l00260"></a>00260 <span class="preprocessor"> } \</span>
<a name="l00261"></a>00261 <span class="preprocessor">}</span>
<a name="l00262"></a>00262 <span class="preprocessor"></span>
<a name="l00276"></a><a class="code" href="utf16_8h.html#8b2d32badc574394c243426b67ccdd2f">00276</a> <span class="preprocessor">#define U16_APPEND_UNSAFE(s, i, c) { \</span>
<a name="l00277"></a>00277 <span class="preprocessor"> if((uint32_t)(c)<=0xffff) { \</span>
<a name="l00278"></a>00278 <span class="preprocessor"> (s)[(i)++]=(uint16_t)(c); \</span>
<a name="l00279"></a>00279 <span class="preprocessor"> } else { \</span>
<a name="l00280"></a>00280 <span class="preprocessor"> (s)[(i)++]=(uint16_t)(((c)>>10)+0xd7c0); \</span>
<a name="l00281"></a>00281 <span class="preprocessor"> (s)[(i)++]=(uint16_t)(((c)&0x3ff)|0xdc00); \</span>
<a name="l00282"></a>00282 <span class="preprocessor"> } \</span>
<a name="l00283"></a>00283 <span class="preprocessor">}</span>
<a name="l00284"></a>00284 <span class="preprocessor"></span>
<a name="l00302"></a><a class="code" href="utf16_8h.html#239978eefdde632dd16502a7a47d26ca">00302</a> <span class="preprocessor">#define U16_APPEND(s, i, capacity, c, isError) { \</span>
<a name="l00303"></a>00303 <span class="preprocessor"> if((uint32_t)(c)<=0xffff) { \</span>
<a name="l00304"></a>00304 <span class="preprocessor"> (s)[(i)++]=(uint16_t)(c); \</span>
<a name="l00305"></a>00305 <span class="preprocessor"> } else if((uint32_t)(c)<=0x10ffff && (i)+1<(capacity)) { \</span>
<a name="l00306"></a>00306 <span class="preprocessor"> (s)[(i)++]=(uint16_t)(((c)>>10)+0xd7c0); \</span>
<a name="l00307"></a>00307 <span class="preprocessor"> (s)[(i)++]=(uint16_t)(((c)&0x3ff)|0xdc00); \</span>
<a name="l00308"></a>00308 <span class="preprocessor"> } else </span><span class="comment">/* c>0x10ffff or not enough space */</span> { \
<a name="l00309"></a>00309 (isError)=TRUE; \
<a name="l00310"></a>00310 } \
<a name="l00311"></a>00311 }
<a name="l00312"></a>00312
<a name="l00323"></a><a class="code" href="utf16_8h.html#45792331972f54e0c5c354ab81a90068">00323</a> <span class="preprocessor">#define U16_FWD_1_UNSAFE(s, i) { \</span>
<a name="l00324"></a>00324 <span class="preprocessor"> if(U16_IS_LEAD((s)[(i)++])) { \</span>
<a name="l00325"></a>00325 <span class="preprocessor"> ++(i); \</span>
<a name="l00326"></a>00326 <span class="preprocessor"> } \</span>
<a name="l00327"></a>00327 <span class="preprocessor">}</span>
<a name="l00328"></a>00328 <span class="preprocessor"></span>
<a name="l00340"></a><a class="code" href="utf16_8h.html#ca0e26ad4d8cbc5f41d550404e7dc9e3">00340</a> <span class="preprocessor">#define U16_FWD_1(s, i, length) { \</span>
<a name="l00341"></a>00341 <span class="preprocessor"> if(U16_IS_LEAD((s)[(i)++]) && (i)<(length) && U16_IS_TRAIL((s)[i])) { \</span>
<a name="l00342"></a>00342 <span class="preprocessor"> ++(i); \</span>
<a name="l00343"></a>00343 <span class="preprocessor"> } \</span>
<a name="l00344"></a>00344 <span class="preprocessor">}</span>
<a name="l00345"></a>00345 <span class="preprocessor"></span>
<a name="l00358"></a><a class="code" href="utf16_8h.html#5f1ee28d914ab43c9df8b0679179aadf">00358</a> <span class="preprocessor">#define U16_FWD_N_UNSAFE(s, i, n) { \</span>
<a name="l00359"></a>00359 <span class="preprocessor"> int32_t __N=(n); \</span>
<a name="l00360"></a>00360 <span class="preprocessor"> while(__N>0) { \</span>
<a name="l00361"></a>00361 <span class="preprocessor"> U16_FWD_1_UNSAFE(s, i); \</span>
<a name="l00362"></a>00362 <span class="preprocessor"> --__N; \</span>
<a name="l00363"></a>00363 <span class="preprocessor"> } \</span>
<a name="l00364"></a>00364 <span class="preprocessor">}</span>
<a name="l00365"></a>00365 <span class="preprocessor"></span>
<a name="l00379"></a><a class="code" href="utf16_8h.html#1f638c7f80ced61bed18d1041d30719d">00379</a> <span class="preprocessor">#define U16_FWD_N(s, i, length, n) { \</span>
<a name="l00380"></a>00380 <span class="preprocessor"> int32_t __N=(n); \</span>
<a name="l00381"></a>00381 <span class="preprocessor"> while(__N>0 && (i)<(length)) { \</span>
<a name="l00382"></a>00382 <span class="preprocessor"> U16_FWD_1(s, i, length); \</span>
<a name="l00383"></a>00383 <span class="preprocessor"> --__N; \</span>
<a name="l00384"></a>00384 <span class="preprocessor"> } \</span>
<a name="l00385"></a>00385 <span class="preprocessor">}</span>
<a name="l00386"></a>00386 <span class="preprocessor"></span>
<a name="l00400"></a><a class="code" href="utf16_8h.html#8315c55d7478274b81577a259c255401">00400</a> <span class="preprocessor">#define U16_SET_CP_START_UNSAFE(s, i) { \</span>
<a name="l00401"></a>00401 <span class="preprocessor"> if(U16_IS_TRAIL((s)[i])) { \</span>
<a name="l00402"></a>00402 <span class="preprocessor"> --(i); \</span>
<a name="l00403"></a>00403 <span class="preprocessor"> } \</span>
<a name="l00404"></a>00404 <span class="preprocessor">}</span>
<a name="l00405"></a>00405 <span class="preprocessor"></span>
<a name="l00420"></a><a class="code" href="utf16_8h.html#7552e91e1127a6c68c16adffd07ba6a7">00420</a> <span class="preprocessor">#define U16_SET_CP_START(s, start, i) { \</span>
<a name="l00421"></a>00421 <span class="preprocessor"> if(U16_IS_TRAIL((s)[i]) && (i)>(start) && U16_IS_LEAD((s)[(i)-1])) { \</span>
<a name="l00422"></a>00422 <span class="preprocessor"> --(i); \</span>
<a name="l00423"></a>00423 <span class="preprocessor"> } \</span>
<a name="l00424"></a>00424 <span class="preprocessor">}</span>
<a name="l00425"></a>00425 <span class="preprocessor"></span>
<a name="l00426"></a>00426 <span class="comment">/* definitions with backward iteration -------------------------------------- */</span>
<a name="l00427"></a>00427
<a name="l00448"></a><a class="code" href="utf16_8h.html#8b371ab218a1cc9bc6b6c774ca47a732">00448</a> <span class="preprocessor">#define U16_PREV_UNSAFE(s, i, c) { \</span>
<a name="l00449"></a>00449 <span class="preprocessor"> (c)=(s)[--(i)]; \</span>
<a name="l00450"></a>00450 <span class="preprocessor"> if(U16_IS_TRAIL(c)) { \</span>
<a name="l00451"></a>00451 <span class="preprocessor"> (c)=U16_GET_SUPPLEMENTARY((s)[--(i)], (c)); \</span>
<a name="l00452"></a>00452 <span class="preprocessor"> } \</span>
<a name="l00453"></a>00453 <span class="preprocessor">}</span>
<a name="l00454"></a>00454 <span class="preprocessor"></span>
<a name="l00476"></a><a class="code" href="utf16_8h.html#149931004c5140c0a8655f891c99d894">00476</a> <span class="preprocessor">#define U16_PREV(s, start, i, c) { \</span>
<a name="l00477"></a>00477 <span class="preprocessor"> (c)=(s)[--(i)]; \</span>
<a name="l00478"></a>00478 <span class="preprocessor"> if(U16_IS_TRAIL(c)) { \</span>
<a name="l00479"></a>00479 <span class="preprocessor"> uint16_t __c2; \</span>
<a name="l00480"></a>00480 <span class="preprocessor"> if((i)>(start) && U16_IS_LEAD(__c2=(s)[(i)-1])) { \</span>
<a name="l00481"></a>00481 <span class="preprocessor"> --(i); \</span>
<a name="l00482"></a>00482 <span class="preprocessor"> (c)=U16_GET_SUPPLEMENTARY(__c2, (c)); \</span>
<a name="l00483"></a>00483 <span class="preprocessor"> } \</span>
<a name="l00484"></a>00484 <span class="preprocessor"> } \</span>
<a name="l00485"></a>00485 <span class="preprocessor">}</span>
<a name="l00486"></a>00486 <span class="preprocessor"></span>
<a name="l00498"></a><a class="code" href="utf16_8h.html#444c1cbc24c5815c41678909fd360943">00498</a> <span class="preprocessor">#define U16_BACK_1_UNSAFE(s, i) { \</span>
<a name="l00499"></a>00499 <span class="preprocessor"> if(U16_IS_TRAIL((s)[--(i)])) { \</span>
<a name="l00500"></a>00500 <span class="preprocessor"> --(i); \</span>
<a name="l00501"></a>00501 <span class="preprocessor"> } \</span>
<a name="l00502"></a>00502 <span class="preprocessor">}</span>
<a name="l00503"></a>00503 <span class="preprocessor"></span>
<a name="l00516"></a><a class="code" href="utf16_8h.html#5936c0b44368fc808232b59c1de42c5c">00516</a> <span class="preprocessor">#define U16_BACK_1(s, start, i) { \</span>
<a name="l00517"></a>00517 <span class="preprocessor"> if(U16_IS_TRAIL((s)[--(i)]) && (i)>(start) && U16_IS_LEAD((s)[(i)-1])) { \</span>
<a name="l00518"></a>00518 <span class="preprocessor"> --(i); \</span>
<a name="l00519"></a>00519 <span class="preprocessor"> } \</span>
<a name="l00520"></a>00520 <span class="preprocessor">}</span>
<a name="l00521"></a>00521 <span class="preprocessor"></span>
<a name="l00535"></a><a class="code" href="utf16_8h.html#ae0942df6d87fb437f2ef6d344a77e87">00535</a> <span class="preprocessor">#define U16_BACK_N_UNSAFE(s, i, n) { \</span>
<a name="l00536"></a>00536 <span class="preprocessor"> int32_t __N=(n); \</span>
<a name="l00537"></a>00537 <span class="preprocessor"> while(__N>0) { \</span>
<a name="l00538"></a>00538 <span class="preprocessor"> U16_BACK_1_UNSAFE(s, i); \</span>
<a name="l00539"></a>00539 <span class="preprocessor"> --__N; \</span>
<a name="l00540"></a>00540 <span class="preprocessor"> } \</span>
<a name="l00541"></a>00541 <span class="preprocessor">}</span>
<a name="l00542"></a>00542 <span class="preprocessor"></span>
<a name="l00557"></a><a class="code" href="utf16_8h.html#6865317f8558a69731dde4e3d7931c24">00557</a> <span class="preprocessor">#define U16_BACK_N(s, start, i, n) { \</span>
<a name="l00558"></a>00558 <span class="preprocessor"> int32_t __N=(n); \</span>
<a name="l00559"></a>00559 <span class="preprocessor"> while(__N>0 && (i)>(start)) { \</span>
<a name="l00560"></a>00560 <span class="preprocessor"> U16_BACK_1(s, start, i); \</span>
<a name="l00561"></a>00561 <span class="preprocessor"> --__N; \</span>
<a name="l00562"></a>00562 <span class="preprocessor"> } \</span>
<a name="l00563"></a>00563 <span class="preprocessor">}</span>
<a name="l00564"></a>00564 <span class="preprocessor"></span>
<a name="l00578"></a><a class="code" href="utf16_8h.html#b58a26591ec542fbc52c7b2ed1551033">00578</a> <span class="preprocessor">#define U16_SET_CP_LIMIT_UNSAFE(s, i) { \</span>
<a name="l00579"></a>00579 <span class="preprocessor"> if(U16_IS_LEAD((s)[(i)-1])) { \</span>
<a name="l00580"></a>00580 <span class="preprocessor"> ++(i); \</span>
<a name="l00581"></a>00581 <span class="preprocessor"> } \</span>
<a name="l00582"></a>00582 <span class="preprocessor">}</span>
<a name="l00583"></a>00583 <span class="preprocessor"></span>
<a name="l00599"></a><a class="code" href="utf16_8h.html#6f802103e73577b00fa849785e2af39d">00599</a> <span class="preprocessor">#define U16_SET_CP_LIMIT(s, start, i, length) { \</span>
<a name="l00600"></a>00600 <span class="preprocessor"> if((start)<(i) && (i)<(length) && U16_IS_LEAD((s)[(i)-1]) && U16_IS_TRAIL((s)[i])) { \</span>
<a name="l00601"></a>00601 <span class="preprocessor"> ++(i); \</span>
<a name="l00602"></a>00602 <span class="preprocessor"> } \</span>
<a name="l00603"></a>00603 <span class="preprocessor">}</span>
<a name="l00604"></a>00604 <span class="preprocessor"></span>
<a name="l00605"></a>00605 <span class="preprocessor">#endif</span>
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Tue Dec 13 17:29:51 2011 for ICU 3.6 by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.7 </small></address>
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