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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.14"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>ICU 78.3: common/unicode/utf8.h Source File</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="search/search.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="search/searchdata.js"></script> <script type="text/javascript" src="search/search.js"></script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td id="projectalign" style="padding-left: 0.5em;"> <div id="projectname">ICU 78.3  <span id="projectnumber">78.3</span> </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.14 --> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */ var searchBox = new SearchBox("searchBox", "search",false,'Search'); /* @license-end */ </script> <script type="text/javascript" src="menudata.js"></script> <script type="text/javascript" src="menu.js"></script> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */ $(function() { initMenu('',true,false,'search.php','Search'); $(document).ready(function() { init_search(); }); }); /* @license-end */</script> <div id="main-nav"></div> <!-- window showing the filter options --> <div id="MSearchSelectWindow" onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" onkeydown="return searchBox.OnSearchSelectKey(event)"> </div> <!-- iframe showing the search results (closed by default) --> <div id="MSearchResultsWindow"> <iframe src="javascript:void(0)" frameborder="0" name="MSearchResults" id="MSearchResults"> </iframe> </div> <div id="nav-path" class="navpath"> <ul> <li class="navelem"><a class="el" href="dir_bdd9a5d540de89e9fe90efdfc6973a4f.html">common</a></li><li class="navelem"><a class="el" href="dir_f59c6450ff718ff1b085cfd1c36acbd7.html">unicode</a></li> </ul> </div> </div><!-- top --> <div class="header"> <div class="headertitle"> <div class="title">utf8.h</div> </div> </div><!--header--> <div class="contents"> <a href="utf8_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// © 2016 and later: Unicode, Inc. and others.</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// License & terms of use: http://www.unicode.org/copyright.html</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">/*</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">*******************************************************************************</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">*</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">* Copyright (C) 1999-2015, International Business Machines</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">* Corporation and others. All Rights Reserved.</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">*</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">*******************************************************************************</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">* file name: utf8.h</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">* encoding: UTF-8</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">* tab size: 8 (not used)</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">* indentation:4</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">*</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">* created on: 1999sep13</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">* created by: Markus W. Scherer</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">*/</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#ifndef __UTF8_H__</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#define __UTF8_H__</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#include <stdbool.h></span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#include "<a class="code" href="umachine_8h.html">unicode/umachine.h</a>"</span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#ifndef __UTF_H__</span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor"># include "<a class="code" href="utf_8h.html">unicode/utf.h</a>"</span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment">/* internal definitions ----------------------------------------------------- */</span></div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div><div class="line"><a name="l00056"></a><span class="lineno"><a class="line" href="utf8_8h.html#ae534bfef078b4f5d09e8da543a779db7"> 56</a></span> <span class="preprocessor">#define U8_COUNT_TRAIL_BYTES(leadByte) \</span></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor"> (U8_IS_LEAD(leadByte) ? \</span></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="preprocessor"> ((uint8_t)(leadByte)>=0xe0)+((uint8_t)(leadByte)>=0xf0)+1 : 0)</span></div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> </div><div class="line"><a name="l00071"></a><span class="lineno"><a class="line" href="utf8_8h.html#a32281421a1d07ef0de83e7f44c5d7ba2"> 71</a></span> <span class="preprocessor">#define U8_COUNT_TRAIL_BYTES_UNSAFE(leadByte) \</span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="preprocessor"> (((uint8_t)(leadByte)>=0xc2)+((uint8_t)(leadByte)>=0xe0)+((uint8_t)(leadByte)>=0xf0))</span></div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> </div><div class="line"><a name="l00081"></a><span class="lineno"><a class="line" href="utf8_8h.html#ae8ed1045986b8bf27814e9bc78388961"> 81</a></span> <span class="preprocessor">#define U8_MASK_LEAD_BYTE(leadByte, countTrailBytes) ((leadByte)&=(1<<(6-(countTrailBytes)))-1)</span></div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div><div class="line"><a name="l00091"></a><span class="lineno"><a class="line" href="utf8_8h.html#aabfe8ee746b8025ec80ed1977e8ae3c6"> 91</a></span> <span class="preprocessor">#define U8_LEAD3_T1_BITS "\x20\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x10\x30\x30"</span></div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> </div><div class="line"><a name="l00098"></a><span class="lineno"><a class="line" href="utf8_8h.html#a3a06eab6584d228ea835b424e0591aec"> 98</a></span> <span class="preprocessor">#define U8_IS_VALID_LEAD3_AND_T1(lead, t1) (U8_LEAD3_T1_BITS[(lead)&0xf]&(1<<((uint8_t)(t1)>>5)))</span></div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div><div class="line"><a name="l00108"></a><span class="lineno"><a class="line" href="utf8_8h.html#ab7b00ab82ca3e89d24c4088b2b4e9416"> 108</a></span> <span class="preprocessor">#define U8_LEAD4_T1_BITS "\x00\x00\x00\x00\x00\x00\x00\x00\x1E\x0F\x0F\x0F\x00\x00\x00\x00"</span></div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> </div><div class="line"><a name="l00115"></a><span class="lineno"><a class="line" href="utf8_8h.html#a5525576b42e8b7b4240153d9403c47a2"> 115</a></span> <span class="preprocessor">#define U8_IS_VALID_LEAD4_AND_T1(lead, t1) (U8_LEAD4_T1_BITS[(uint8_t)(t1)>>4]&(1<<((lead)&7)))</span></div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span> </div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <a class="code" href="umachine_8h.html#a676114b1a64bb7c2de15c919a00b28df">U_CAPI</a> <a class="code" href="umachine_8h.html#a09fff5c3b5a5b015324dc3ec3cf92809">UChar32</a> U_EXPORT2</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <a class="code" href="utf8_8h.html#a69dc81906db1f411db448af1f0a127bc">utf8_nextCharSafeBody</a>(<span class="keyword">const</span> uint8_t *s, int32_t *pi, int32_t length, <a class="code" href="umachine_8h.html#a09fff5c3b5a5b015324dc3ec3cf92809">UChar32</a> c, int8_t strict);</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <a class="code" href="umachine_8h.html#a676114b1a64bb7c2de15c919a00b28df">U_CAPI</a> int32_t U_EXPORT2</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <a class="code" href="utf8_8h.html#a1e020bdd5f37df249701305449ab4f09">utf8_appendCharSafeBody</a>(uint8_t *s, int32_t i, int32_t length, <a class="code" href="umachine_8h.html#a09fff5c3b5a5b015324dc3ec3cf92809">UChar32</a> c, <a class="code" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a> *pIsError);</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span> </div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span> <a class="code" href="umachine_8h.html#a676114b1a64bb7c2de15c919a00b28df">U_CAPI</a> <a class="code" href="umachine_8h.html#a09fff5c3b5a5b015324dc3ec3cf92809">UChar32</a> U_EXPORT2</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span> <a class="code" href="utf8_8h.html#aebee4048c92a5a0e9eba0b4ea4dd8817">utf8_prevCharSafeBody</a>(<span class="keyword">const</span> uint8_t *s, int32_t start, int32_t *pi, <a class="code" href="umachine_8h.html#a09fff5c3b5a5b015324dc3ec3cf92809">UChar32</a> c, int8_t strict);</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span> </div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <a class="code" href="umachine_8h.html#a676114b1a64bb7c2de15c919a00b28df">U_CAPI</a> int32_t U_EXPORT2</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span> <a class="code" href="utf8_8h.html#a5841b67d88632d294e5feabc4980855e">utf8_back1SafeBody</a>(<span class="keyword">const</span> uint8_t *s, int32_t start, int32_t i);</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span> </div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span> <span class="comment">/* single-code point definitions -------------------------------------------- */</span></div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span> </div><div class="line"><a name="l00173"></a><span class="lineno"><a class="line" href="utf8_8h.html#a8f3a9427d880458a9fa6b169a3cc1b3c"> 173</a></span> <span class="preprocessor">#define U8_IS_SINGLE(c) ((int8_t)(c)>=0)</span></div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span> </div><div class="line"><a name="l00181"></a><span class="lineno"><a class="line" href="utf8_8h.html#adb9837ea38dd811524a5b761ddc2a2ca"> 181</a></span> <span class="preprocessor">#define U8_IS_LEAD(c) ((uint8_t)((c)-0xc2)<=0x32)</span></div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span> <span class="comment">// 0x32=0xf4-0xc2</span></div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span> </div><div class="line"><a name="l00190"></a><span class="lineno"><a class="line" href="utf8_8h.html#afed9fc9bf480bf15a2e6051774f2d80e"> 190</a></span> <span class="preprocessor">#define U8_IS_TRAIL(c) ((int8_t)(c)<-0x40)</span></div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span> </div><div class="line"><a name="l00199"></a><span class="lineno"><a class="line" href="utf8_8h.html#af1730b8bbb3053465ee58702821846f1"> 199</a></span> <span class="preprocessor">#define U8_LENGTH(c) \</span></div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span> <span class="preprocessor"> ((uint32_t)(c)<=0x7f ? 1 : \</span></div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span> <span class="preprocessor"> ((uint32_t)(c)<=0x7ff ? 2 : \</span></div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span> <span class="preprocessor"> ((uint32_t)(c)<=0xd7ff ? 3 : \</span></div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span> <span class="preprocessor"> ((uint32_t)(c)<=0xdfff || (uint32_t)(c)>0x10ffff ? 0 : \</span></div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span> <span class="preprocessor"> ((uint32_t)(c)<=0xffff ? 3 : 4)\</span></div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span> <span class="preprocessor"> ) \</span></div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span> <span class="preprocessor"> ) \</span></div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span> <span class="preprocessor"> ) \</span></div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="preprocessor"> )</span></div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span> </div><div class="line"><a name="l00215"></a><span class="lineno"><a class="line" href="utf8_8h.html#aa2298b48749d9f45772c8f5a6885464a"> 215</a></span> <span class="preprocessor">#define U8_MAX_LENGTH 4</span></div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span> </div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span> <span class="preprocessor">#ifndef U_HIDE_DRAFT_API</span></div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span> </div><div class="line"><a name="l00228"></a><span class="lineno"><a class="line" href="utf8_8h.html#a44822ffa347b3b403b5579e2dc00307b"> 228</a></span> <span class="preprocessor">#define U8_LENGTH_FROM_LEAD_BYTE(leadByte) (U8_COUNT_TRAIL_BYTES(leadByte) + 1)</span></div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span> </div><div class="line"><a name="l00239"></a><span class="lineno"><a class="line" href="utf8_8h.html#a4725d444cca8ffc1d97a16dc4823b55f"> 239</a></span> <span class="preprocessor">#define U8_LENGTH_FROM_LEAD_BYTE_UNSAFE(leadByte) (U8_COUNT_TRAIL_BYTES_UNSAFE(leadByte) + 1)</span></div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span> </div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span> <span class="preprocessor">#endif // U_HIDE_DRAFT_API</span></div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span> </div><div class="line"><a name="l00259"></a><span class="lineno"><a class="line" href="utf8_8h.html#a125e5e7a4ef2f3f57b078f706b2b67f8"> 259</a></span> <span class="preprocessor">#define U8_GET_UNSAFE(s, i, c) UPRV_BLOCK_MACRO_BEGIN { \</span></div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span> <span class="preprocessor"> int32_t _u8_get_unsafe_index=(int32_t)(i); \</span></div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span> <span class="preprocessor"> U8_SET_CP_START_UNSAFE(s, _u8_get_unsafe_index); \</span></div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span> <span class="preprocessor"> U8_NEXT_UNSAFE(s, _u8_get_unsafe_index, c); \</span></div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span> <span class="preprocessor">} UPRV_BLOCK_MACRO_END</span></div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span> </div><div class="line"><a name="l00286"></a><span class="lineno"><a class="line" href="utf8_8h.html#a10a57a084d75604c4a81fb5eec46ae6a"> 286</a></span> <span class="preprocessor">#define U8_GET(s, start, i, length, c) UPRV_BLOCK_MACRO_BEGIN { \</span></div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span> <span class="preprocessor"> int32_t _u8_get_index=(i); \</span></div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span> <span class="preprocessor"> U8_SET_CP_START(s, start, _u8_get_index); \</span></div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span> <span class="preprocessor"> U8_NEXT(s, _u8_get_index, length, c); \</span></div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span> <span class="preprocessor">} UPRV_BLOCK_MACRO_END</span></div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span> </div><div class="line"><a name="l00317"></a><span class="lineno"><a class="line" href="utf8_8h.html#ad13323ca441892bdb6b49b6954ab9ffb"> 317</a></span> <span class="preprocessor">#define U8_GET_OR_FFFD(s, start, i, length, c) UPRV_BLOCK_MACRO_BEGIN { \</span></div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span> <span class="preprocessor"> int32_t _u8_get_index=(i); \</span></div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span> <span class="preprocessor"> U8_SET_CP_START(s, start, _u8_get_index); \</span></div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span> <span class="preprocessor"> U8_NEXT_OR_FFFD(s, _u8_get_index, length, c); \</span></div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span> <span class="preprocessor">} UPRV_BLOCK_MACRO_END</span></div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span> </div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span> <span class="comment">/* definitions with forward iteration --------------------------------------- */</span></div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span> </div><div class="line"><a name="l00342"></a><span class="lineno"><a class="line" href="utf8_8h.html#a28ecdb4233301285fc4ce7f9ea1ed644"> 342</a></span> <span class="preprocessor">#define U8_NEXT_UNSAFE(s, i, c) UPRV_BLOCK_MACRO_BEGIN { \</span></div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span> <span class="preprocessor"> (c)=(uint8_t)(s)[(i)++]; \</span></div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span> <span class="preprocessor"> if(!U8_IS_SINGLE(c)) { \</span></div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span> <span class="preprocessor"> if((c)<0xe0) { \</span></div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span> <span class="preprocessor"> (c)=(((c)&0x1f)<<6)|((s)[(i)++]&0x3f); \</span></div><div class="line"><a name="l00347"></a><span class="lineno"> 347</span> <span class="preprocessor"> } else if((c)<0xf0) { \</span></div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span> <span class="preprocessor"> </span><span class="comment">/* no need for (c&0xf) because the upper bits are truncated after <<12 in the cast to (UChar) */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span> <span class="preprocessor"> (c)=(UChar)(((c)<<12)|(((s)[i]&0x3f)<<6)|((s)[(i)+1]&0x3f)); \</span></div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span> <span class="preprocessor"> (i)+=2; \</span></div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span> <span class="preprocessor"> } else { \</span></div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span> <span class="preprocessor"> (c)=(((c)&7)<<18)|(((s)[i]&0x3f)<<12)|(((s)[(i)+1]&0x3f)<<6)|((s)[(i)+2]&0x3f); \</span></div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span> <span class="preprocessor"> (i)+=3; \</span></div><div class="line"><a name="l00354"></a><span class="lineno"> 354</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span> <span class="preprocessor">} UPRV_BLOCK_MACRO_END</span></div><div class="line"><a name="l00357"></a><span class="lineno"> 357</span> </div><div class="line"><a name="l00378"></a><span class="lineno"><a class="line" href="utf8_8h.html#a57f3e5429ae4edb27a42367c627aa482"> 378</a></span> <span class="preprocessor">#define U8_NEXT(s, i, length, c) U8_INTERNAL_NEXT_OR_SUB(s, i, length, c, U_SENTINEL)</span></div><div class="line"><a name="l00379"></a><span class="lineno"> 379</span> </div><div class="line"><a name="l00404"></a><span class="lineno"><a class="line" href="utf8_8h.html#a7dda2b78867c9d648ad5a0f400fdb1b4"> 404</a></span> <span class="preprocessor">#define U8_NEXT_OR_FFFD(s, i, length, c) U8_INTERNAL_NEXT_OR_SUB(s, i, length, c, 0xfffd)</span></div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span> </div><div class="line"><a name="l00407"></a><span class="lineno"><a class="line" href="utf8_8h.html#a27c3748113bc63347a7fa3a4b2c71029"> 407</a></span> <span class="preprocessor">#define U8_INTERNAL_NEXT_OR_SUB(s, i, length, c, sub) UPRV_BLOCK_MACRO_BEGIN { \</span></div><div class="line"><a name="l00408"></a><span class="lineno"> 408</span> <span class="preprocessor"> (c)=(uint8_t)(s)[(i)++]; \</span></div><div class="line"><a name="l00409"></a><span class="lineno"> 409</span> <span class="preprocessor"> if(!U8_IS_SINGLE(c)) { \</span></div><div class="line"><a name="l00410"></a><span class="lineno"> 410</span> <span class="preprocessor"> uint8_t __t = 0; \</span></div><div class="line"><a name="l00411"></a><span class="lineno"> 411</span> <span class="preprocessor"> if((i)!=(length) && \</span></div><div class="line"><a name="l00412"></a><span class="lineno"> 412</span> <span class="preprocessor"> </span><span class="comment">/* fetch/validate/assemble all but last trail byte */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00413"></a><span class="lineno"> 413</span> <span class="preprocessor"> ((c)>=0xe0 ? \</span></div><div class="line"><a name="l00414"></a><span class="lineno"> 414</span> <span class="preprocessor"> ((c)<0xf0 ? </span><span class="comment">/* U+0800..U+FFFF except surrogates */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00415"></a><span class="lineno"> 415</span> <span class="preprocessor"> U8_LEAD3_T1_BITS[(c)&=0xf]&(1<<((__t=(s)[i])>>5)) && \</span></div><div class="line"><a name="l00416"></a><span class="lineno"> 416</span> <span class="preprocessor"> (__t&=0x3f, 1) \</span></div><div class="line"><a name="l00417"></a><span class="lineno"> 417</span> <span class="preprocessor"> : </span><span class="comment">/* U+10000..U+10FFFF */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00418"></a><span class="lineno"> 418</span> <span class="preprocessor"> ((c)-=0xf0)<=4 && \</span></div><div class="line"><a name="l00419"></a><span class="lineno"> 419</span> <span class="preprocessor"> U8_LEAD4_T1_BITS[(__t=(s)[i])>>4]&(1<<(c)) && \</span></div><div class="line"><a name="l00420"></a><span class="lineno"> 420</span> <span class="preprocessor"> ((c)=((c)<<6)|(__t&0x3f), ++(i)!=(length)) && \</span></div><div class="line"><a name="l00421"></a><span class="lineno"> 421</span> <span class="preprocessor"> (__t=(s)[i]-0x80)<=0x3f) && \</span></div><div class="line"><a name="l00422"></a><span class="lineno"> 422</span> <span class="preprocessor"> </span><span class="comment">/* valid second-to-last trail byte */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00423"></a><span class="lineno"> 423</span> <span class="preprocessor"> ((c)=((c)<<6)|__t, ++(i)!=(length)) \</span></div><div class="line"><a name="l00424"></a><span class="lineno"> 424</span> <span class="preprocessor"> : </span><span class="comment">/* U+0080..U+07FF */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00425"></a><span class="lineno"> 425</span> <span class="preprocessor"> (c)>=0xc2 && ((c)&=0x1f, 1)) && \</span></div><div class="line"><a name="l00426"></a><span class="lineno"> 426</span> <span class="preprocessor"> </span><span class="comment">/* last trail byte */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00427"></a><span class="lineno"> 427</span> <span class="preprocessor"> (__t=(s)[i]-0x80)<=0x3f && \</span></div><div class="line"><a name="l00428"></a><span class="lineno"> 428</span> <span class="preprocessor"> ((c)=((c)<<6)|__t, ++(i), 1)) { \</span></div><div class="line"><a name="l00429"></a><span class="lineno"> 429</span> <span class="preprocessor"> } else { \</span></div><div class="line"><a name="l00430"></a><span class="lineno"> 430</span> <span class="preprocessor"> (c)=(sub); </span><span class="comment">/* ill-formed*/</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00431"></a><span class="lineno"> 431</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00432"></a><span class="lineno"> 432</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00433"></a><span class="lineno"> 433</span> <span class="preprocessor">} UPRV_BLOCK_MACRO_END</span></div><div class="line"><a name="l00434"></a><span class="lineno"> 434</span> </div><div class="line"><a name="l00448"></a><span class="lineno"><a class="line" href="utf8_8h.html#a154f04764da5af41729c4df6bf9e09f3"> 448</a></span> <span class="preprocessor">#define U8_APPEND_UNSAFE(s, i, c) UPRV_BLOCK_MACRO_BEGIN { \</span></div><div class="line"><a name="l00449"></a><span class="lineno"> 449</span> <span class="preprocessor"> uint32_t __uc=(c); \</span></div><div class="line"><a name="l00450"></a><span class="lineno"> 450</span> <span class="preprocessor"> if(__uc<=0x7f) { \</span></div><div class="line"><a name="l00451"></a><span class="lineno"> 451</span> <span class="preprocessor"> (s)[(i)++]=(uint8_t)__uc; \</span></div><div class="line"><a name="l00452"></a><span class="lineno"> 452</span> <span class="preprocessor"> } else { \</span></div><div class="line"><a name="l00453"></a><span class="lineno"> 453</span> <span class="preprocessor"> if(__uc<=0x7ff) { \</span></div><div class="line"><a name="l00454"></a><span class="lineno"> 454</span> <span class="preprocessor"> (s)[(i)++]=(uint8_t)((__uc>>6)|0xc0); \</span></div><div class="line"><a name="l00455"></a><span class="lineno"> 455</span> <span class="preprocessor"> } else { \</span></div><div class="line"><a name="l00456"></a><span class="lineno"> 456</span> <span class="preprocessor"> if(__uc<=0xffff) { \</span></div><div class="line"><a name="l00457"></a><span class="lineno"> 457</span> <span class="preprocessor"> (s)[(i)++]=(uint8_t)((__uc>>12)|0xe0); \</span></div><div class="line"><a name="l00458"></a><span class="lineno"> 458</span> <span class="preprocessor"> } else { \</span></div><div class="line"><a name="l00459"></a><span class="lineno"> 459</span> <span class="preprocessor"> (s)[(i)++]=(uint8_t)((__uc>>18)|0xf0); \</span></div><div class="line"><a name="l00460"></a><span class="lineno"> 460</span> <span class="preprocessor"> (s)[(i)++]=(uint8_t)(((__uc>>12)&0x3f)|0x80); \</span></div><div class="line"><a name="l00461"></a><span class="lineno"> 461</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00462"></a><span class="lineno"> 462</span> <span class="preprocessor"> (s)[(i)++]=(uint8_t)(((__uc>>6)&0x3f)|0x80); \</span></div><div class="line"><a name="l00463"></a><span class="lineno"> 463</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00464"></a><span class="lineno"> 464</span> <span class="preprocessor"> (s)[(i)++]=(uint8_t)((__uc&0x3f)|0x80); \</span></div><div class="line"><a name="l00465"></a><span class="lineno"> 465</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00466"></a><span class="lineno"> 466</span> <span class="preprocessor">} UPRV_BLOCK_MACRO_END</span></div><div class="line"><a name="l00467"></a><span class="lineno"> 467</span> </div><div class="line"><a name="l00485"></a><span class="lineno"><a class="line" href="utf8_8h.html#a8a013997e3d13c501ce73bc45e662881"> 485</a></span> <span class="preprocessor">#define U8_APPEND(s, i, capacity, c, isError) UPRV_BLOCK_MACRO_BEGIN { \</span></div><div class="line"><a name="l00486"></a><span class="lineno"> 486</span> <span class="preprocessor"> uint32_t __uc=(c); \</span></div><div class="line"><a name="l00487"></a><span class="lineno"> 487</span> <span class="preprocessor"> if(__uc<=0x7f) { \</span></div><div class="line"><a name="l00488"></a><span class="lineno"> 488</span> <span class="preprocessor"> (s)[(i)++]=(uint8_t)__uc; \</span></div><div class="line"><a name="l00489"></a><span class="lineno"> 489</span> <span class="preprocessor"> } else if(__uc<=0x7ff && (i)+1<(capacity)) { \</span></div><div class="line"><a name="l00490"></a><span class="lineno"> 490</span> <span class="preprocessor"> (s)[(i)++]=(uint8_t)((__uc>>6)|0xc0); \</span></div><div class="line"><a name="l00491"></a><span class="lineno"> 491</span> <span class="preprocessor"> (s)[(i)++]=(uint8_t)((__uc&0x3f)|0x80); \</span></div><div class="line"><a name="l00492"></a><span class="lineno"> 492</span> <span class="preprocessor"> } else if((__uc<=0xd7ff || (0xe000<=__uc && __uc<=0xffff)) && (i)+2<(capacity)) { \</span></div><div class="line"><a name="l00493"></a><span class="lineno"> 493</span> <span class="preprocessor"> (s)[(i)++]=(uint8_t)((__uc>>12)|0xe0); \</span></div><div class="line"><a name="l00494"></a><span class="lineno"> 494</span> <span class="preprocessor"> (s)[(i)++]=(uint8_t)(((__uc>>6)&0x3f)|0x80); \</span></div><div class="line"><a name="l00495"></a><span class="lineno"> 495</span> <span class="preprocessor"> (s)[(i)++]=(uint8_t)((__uc&0x3f)|0x80); \</span></div><div class="line"><a name="l00496"></a><span class="lineno"> 496</span> <span class="preprocessor"> } else if(0xffff<__uc && __uc<=0x10ffff && (i)+3<(capacity)) { \</span></div><div class="line"><a name="l00497"></a><span class="lineno"> 497</span> <span class="preprocessor"> (s)[(i)++]=(uint8_t)((__uc>>18)|0xf0); \</span></div><div class="line"><a name="l00498"></a><span class="lineno"> 498</span> <span class="preprocessor"> (s)[(i)++]=(uint8_t)(((__uc>>12)&0x3f)|0x80); \</span></div><div class="line"><a name="l00499"></a><span class="lineno"> 499</span> <span class="preprocessor"> (s)[(i)++]=(uint8_t)(((__uc>>6)&0x3f)|0x80); \</span></div><div class="line"><a name="l00500"></a><span class="lineno"> 500</span> <span class="preprocessor"> (s)[(i)++]=(uint8_t)((__uc&0x3f)|0x80); \</span></div><div class="line"><a name="l00501"></a><span class="lineno"> 501</span> <span class="preprocessor"> } else { \</span></div><div class="line"><a name="l00502"></a><span class="lineno"> 502</span> <span class="preprocessor"> (isError)=true; \</span></div><div class="line"><a name="l00503"></a><span class="lineno"> 503</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00504"></a><span class="lineno"> 504</span> <span class="preprocessor">} UPRV_BLOCK_MACRO_END</span></div><div class="line"><a name="l00505"></a><span class="lineno"> 505</span> </div><div class="line"><a name="l00516"></a><span class="lineno"><a class="line" href="utf8_8h.html#a64a8113aea2125f806cbf5d77294b3cd"> 516</a></span> <span class="preprocessor">#define U8_FWD_1_UNSAFE(s, i) UPRV_BLOCK_MACRO_BEGIN { \</span></div><div class="line"><a name="l00517"></a><span class="lineno"> 517</span> <span class="preprocessor"> (i)+=1+U8_COUNT_TRAIL_BYTES_UNSAFE((s)[i]); \</span></div><div class="line"><a name="l00518"></a><span class="lineno"> 518</span> <span class="preprocessor">} UPRV_BLOCK_MACRO_END</span></div><div class="line"><a name="l00519"></a><span class="lineno"> 519</span> </div><div class="line"><a name="l00533"></a><span class="lineno"><a class="line" href="utf8_8h.html#a6d4c94e845b059fddba0c51e9bad87fd"> 533</a></span> <span class="preprocessor">#define U8_FWD_1(s, i, length) UPRV_BLOCK_MACRO_BEGIN { \</span></div><div class="line"><a name="l00534"></a><span class="lineno"> 534</span> <span class="preprocessor"> uint8_t __b=(s)[(i)++]; \</span></div><div class="line"><a name="l00535"></a><span class="lineno"> 535</span> <span class="preprocessor"> if(U8_IS_LEAD(__b) && (i)!=(length)) { \</span></div><div class="line"><a name="l00536"></a><span class="lineno"> 536</span> <span class="preprocessor"> uint8_t __t1=(s)[i]; \</span></div><div class="line"><a name="l00537"></a><span class="lineno"> 537</span> <span class="preprocessor"> if((0xe0<=__b && __b<0xf0)) { \</span></div><div class="line"><a name="l00538"></a><span class="lineno"> 538</span> <span class="preprocessor"> if(U8_IS_VALID_LEAD3_AND_T1(__b, __t1) && \</span></div><div class="line"><a name="l00539"></a><span class="lineno"> 539</span> <span class="preprocessor"> ++(i)!=(length) && U8_IS_TRAIL((s)[i])) { \</span></div><div class="line"><a name="l00540"></a><span class="lineno"> 540</span> <span class="preprocessor"> ++(i); \</span></div><div class="line"><a name="l00541"></a><span class="lineno"> 541</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00542"></a><span class="lineno"> 542</span> <span class="preprocessor"> } else if(__b<0xe0) { \</span></div><div class="line"><a name="l00543"></a><span class="lineno"> 543</span> <span class="preprocessor"> if(U8_IS_TRAIL(__t1)) { \</span></div><div class="line"><a name="l00544"></a><span class="lineno"> 544</span> <span class="preprocessor"> ++(i); \</span></div><div class="line"><a name="l00545"></a><span class="lineno"> 545</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00546"></a><span class="lineno"> 546</span> <span class="preprocessor"> } else </span><span class="comment">/* b>=0xf0 */</span><span class="preprocessor"> { \</span></div><div class="line"><a name="l00547"></a><span class="lineno"> 547</span> <span class="preprocessor"> if(U8_IS_VALID_LEAD4_AND_T1(__b, __t1) && \</span></div><div class="line"><a name="l00548"></a><span class="lineno"> 548</span> <span class="preprocessor"> ++(i)!=(length) && U8_IS_TRAIL((s)[i]) && \</span></div><div class="line"><a name="l00549"></a><span class="lineno"> 549</span> <span class="preprocessor"> ++(i)!=(length) && U8_IS_TRAIL((s)[i])) { \</span></div><div class="line"><a name="l00550"></a><span class="lineno"> 550</span> <span class="preprocessor"> ++(i); \</span></div><div class="line"><a name="l00551"></a><span class="lineno"> 551</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00552"></a><span class="lineno"> 552</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00553"></a><span class="lineno"> 553</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00554"></a><span class="lineno"> 554</span> <span class="preprocessor">} UPRV_BLOCK_MACRO_END</span></div><div class="line"><a name="l00555"></a><span class="lineno"> 555</span> </div><div class="line"><a name="l00568"></a><span class="lineno"><a class="line" href="utf8_8h.html#a8e8b4218834110431798cc84a0a664ae"> 568</a></span> <span class="preprocessor">#define U8_FWD_N_UNSAFE(s, i, n) UPRV_BLOCK_MACRO_BEGIN { \</span></div><div class="line"><a name="l00569"></a><span class="lineno"> 569</span> <span class="preprocessor"> int32_t __N=(n); \</span></div><div class="line"><a name="l00570"></a><span class="lineno"> 570</span> <span class="preprocessor"> while(__N>0) { \</span></div><div class="line"><a name="l00571"></a><span class="lineno"> 571</span> <span class="preprocessor"> U8_FWD_1_UNSAFE(s, i); \</span></div><div class="line"><a name="l00572"></a><span class="lineno"> 572</span> <span class="preprocessor"> --__N; \</span></div><div class="line"><a name="l00573"></a><span class="lineno"> 573</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00574"></a><span class="lineno"> 574</span> <span class="preprocessor">} UPRV_BLOCK_MACRO_END</span></div><div class="line"><a name="l00575"></a><span class="lineno"> 575</span> </div><div class="line"><a name="l00591"></a><span class="lineno"><a class="line" href="utf8_8h.html#a9a311dc48b8aa1050345b886adabf213"> 591</a></span> <span class="preprocessor">#define U8_FWD_N(s, i, length, n) UPRV_BLOCK_MACRO_BEGIN { \</span></div><div class="line"><a name="l00592"></a><span class="lineno"> 592</span> <span class="preprocessor"> int32_t __N=(n); \</span></div><div class="line"><a name="l00593"></a><span class="lineno"> 593</span> <span class="preprocessor"> while(__N>0 && ((i)<(length) || ((length)<0 && (s)[i]!=0))) { \</span></div><div class="line"><a name="l00594"></a><span class="lineno"> 594</span> <span class="preprocessor"> U8_FWD_1(s, i, length); \</span></div><div class="line"><a name="l00595"></a><span class="lineno"> 595</span> <span class="preprocessor"> --__N; \</span></div><div class="line"><a name="l00596"></a><span class="lineno"> 596</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00597"></a><span class="lineno"> 597</span> <span class="preprocessor">} UPRV_BLOCK_MACRO_END</span></div><div class="line"><a name="l00598"></a><span class="lineno"> 598</span> </div><div class="line"><a name="l00612"></a><span class="lineno"><a class="line" href="utf8_8h.html#ac46a385dbf64c97337522e1d1875a57e"> 612</a></span> <span class="preprocessor">#define U8_SET_CP_START_UNSAFE(s, i) UPRV_BLOCK_MACRO_BEGIN { \</span></div><div class="line"><a name="l00613"></a><span class="lineno"> 613</span> <span class="preprocessor"> while(U8_IS_TRAIL((s)[i])) { --(i); } \</span></div><div class="line"><a name="l00614"></a><span class="lineno"> 614</span> <span class="preprocessor">} UPRV_BLOCK_MACRO_END</span></div><div class="line"><a name="l00615"></a><span class="lineno"> 615</span> </div><div class="line"><a name="l00633"></a><span class="lineno"><a class="line" href="utf8_8h.html#aa6d33627a8a5420a8f61e50da2aeca2a"> 633</a></span> <span class="preprocessor">#define U8_SET_CP_START(s, start, i) UPRV_BLOCK_MACRO_BEGIN { \</span></div><div class="line"><a name="l00634"></a><span class="lineno"> 634</span> <span class="preprocessor"> if(U8_IS_TRAIL((s)[(i)])) { \</span></div><div class="line"><a name="l00635"></a><span class="lineno"> 635</span> <span class="preprocessor"> (i)=utf8_back1SafeBody(s, start, (i)); \</span></div><div class="line"><a name="l00636"></a><span class="lineno"> 636</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00637"></a><span class="lineno"> 637</span> <span class="preprocessor">} UPRV_BLOCK_MACRO_END</span></div><div class="line"><a name="l00638"></a><span class="lineno"> 638</span> </div><div class="line"><a name="l00665"></a><span class="lineno"><a class="line" href="utf8_8h.html#a47528ebb663f83216167be4d28b59230"> 665</a></span> <span class="preprocessor">#define U8_TRUNCATE_IF_INCOMPLETE(s, start, length) UPRV_BLOCK_MACRO_BEGIN { \</span></div><div class="line"><a name="l00666"></a><span class="lineno"> 666</span> <span class="preprocessor"> if((length)>(start)) { \</span></div><div class="line"><a name="l00667"></a><span class="lineno"> 667</span> <span class="preprocessor"> uint8_t __b1=s[(length)-1]; \</span></div><div class="line"><a name="l00668"></a><span class="lineno"> 668</span> <span class="preprocessor"> if(U8_IS_SINGLE(__b1)) { \</span></div><div class="line"><a name="l00669"></a><span class="lineno"> 669</span> <span class="preprocessor"> </span><span class="comment">/* common ASCII character */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00670"></a><span class="lineno"> 670</span> <span class="preprocessor"> } else if(U8_IS_LEAD(__b1)) { \</span></div><div class="line"><a name="l00671"></a><span class="lineno"> 671</span> <span class="preprocessor"> --(length); \</span></div><div class="line"><a name="l00672"></a><span class="lineno"> 672</span> <span class="preprocessor"> } else if(U8_IS_TRAIL(__b1) && ((length)-2)>=(start)) { \</span></div><div class="line"><a name="l00673"></a><span class="lineno"> 673</span> <span class="preprocessor"> uint8_t __b2=s[(length)-2]; \</span></div><div class="line"><a name="l00674"></a><span class="lineno"> 674</span> <span class="preprocessor"> if(0xe0<=__b2 && __b2<=0xf4) { \</span></div><div class="line"><a name="l00675"></a><span class="lineno"> 675</span> <span class="preprocessor"> if(__b2<0xf0 ? U8_IS_VALID_LEAD3_AND_T1(__b2, __b1) : \</span></div><div class="line"><a name="l00676"></a><span class="lineno"> 676</span> <span class="preprocessor"> U8_IS_VALID_LEAD4_AND_T1(__b2, __b1)) { \</span></div><div class="line"><a name="l00677"></a><span class="lineno"> 677</span> <span class="preprocessor"> (length)-=2; \</span></div><div class="line"><a name="l00678"></a><span class="lineno"> 678</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00679"></a><span class="lineno"> 679</span> <span class="preprocessor"> } else if(U8_IS_TRAIL(__b2) && ((length)-3)>=(start)) { \</span></div><div class="line"><a name="l00680"></a><span class="lineno"> 680</span> <span class="preprocessor"> uint8_t __b3=s[(length)-3]; \</span></div><div class="line"><a name="l00681"></a><span class="lineno"> 681</span> <span class="preprocessor"> if(0xf0<=__b3 && __b3<=0xf4 && U8_IS_VALID_LEAD4_AND_T1(__b3, __b2)) { \</span></div><div class="line"><a name="l00682"></a><span class="lineno"> 682</span> <span class="preprocessor"> (length)-=3; \</span></div><div class="line"><a name="l00683"></a><span class="lineno"> 683</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00684"></a><span class="lineno"> 684</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00685"></a><span class="lineno"> 685</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00686"></a><span class="lineno"> 686</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00687"></a><span class="lineno"> 687</span> <span class="preprocessor">} UPRV_BLOCK_MACRO_END</span></div><div class="line"><a name="l00688"></a><span class="lineno"> 688</span> </div><div class="line"><a name="l00689"></a><span class="lineno"> 689</span> <span class="comment">/* definitions with backward iteration -------------------------------------- */</span></div><div class="line"><a name="l00690"></a><span class="lineno"> 690</span> </div><div class="line"><a name="l00710"></a><span class="lineno"><a class="line" href="utf8_8h.html#a5f78eb19a6b25f61dccbae45d6ecf955"> 710</a></span> <span class="preprocessor">#define U8_PREV_UNSAFE(s, i, c) UPRV_BLOCK_MACRO_BEGIN { \</span></div><div class="line"><a name="l00711"></a><span class="lineno"> 711</span> <span class="preprocessor"> (c)=(uint8_t)(s)[--(i)]; \</span></div><div class="line"><a name="l00712"></a><span class="lineno"> 712</span> <span class="preprocessor"> if(!U8_IS_SINGLE(c)) { \</span></div><div class="line"><a name="l00713"></a><span class="lineno"> 713</span> <span class="preprocessor"> uint8_t __b, __count=1, __shift=6; \</span></div><div class="line"><a name="l00714"></a><span class="lineno"> 714</span> <span class="preprocessor">\</span></div><div class="line"><a name="l00715"></a><span class="lineno"> 715</span> <span class="preprocessor"> </span><span class="comment">/* c is a trail byte */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00716"></a><span class="lineno"> 716</span> <span class="preprocessor"> (c)&=0x3f; \</span></div><div class="line"><a name="l00717"></a><span class="lineno"> 717</span> <span class="preprocessor"> for(;;) { \</span></div><div class="line"><a name="l00718"></a><span class="lineno"> 718</span> <span class="preprocessor"> __b=(s)[--(i)]; \</span></div><div class="line"><a name="l00719"></a><span class="lineno"> 719</span> <span class="preprocessor"> if(__b>=0xc0) { \</span></div><div class="line"><a name="l00720"></a><span class="lineno"> 720</span> <span class="preprocessor"> U8_MASK_LEAD_BYTE(__b, __count); \</span></div><div class="line"><a name="l00721"></a><span class="lineno"> 721</span> <span class="preprocessor"> (c)|=(UChar32)__b<<__shift; \</span></div><div class="line"><a name="l00722"></a><span class="lineno"> 722</span> <span class="preprocessor"> break; \</span></div><div class="line"><a name="l00723"></a><span class="lineno"> 723</span> <span class="preprocessor"> } else { \</span></div><div class="line"><a name="l00724"></a><span class="lineno"> 724</span> <span class="preprocessor"> (c)|=(UChar32)(__b&0x3f)<<__shift; \</span></div><div class="line"><a name="l00725"></a><span class="lineno"> 725</span> <span class="preprocessor"> ++__count; \</span></div><div class="line"><a name="l00726"></a><span class="lineno"> 726</span> <span class="preprocessor"> __shift+=6; \</span></div><div class="line"><a name="l00727"></a><span class="lineno"> 727</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00728"></a><span class="lineno"> 728</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00729"></a><span class="lineno"> 729</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00730"></a><span class="lineno"> 730</span> <span class="preprocessor">} UPRV_BLOCK_MACRO_END</span></div><div class="line"><a name="l00731"></a><span class="lineno"> 731</span> </div><div class="line"><a name="l00752"></a><span class="lineno"><a class="line" href="utf8_8h.html#a17287c1f01ce84fdf8852a756643b076"> 752</a></span> <span class="preprocessor">#define U8_PREV(s, start, i, c) UPRV_BLOCK_MACRO_BEGIN { \</span></div><div class="line"><a name="l00753"></a><span class="lineno"> 753</span> <span class="preprocessor"> (c)=(uint8_t)(s)[--(i)]; \</span></div><div class="line"><a name="l00754"></a><span class="lineno"> 754</span> <span class="preprocessor"> if(!U8_IS_SINGLE(c)) { \</span></div><div class="line"><a name="l00755"></a><span class="lineno"> 755</span> <span class="preprocessor"> (c)=utf8_prevCharSafeBody((const uint8_t *)s, start, &(i), c, -1); \</span></div><div class="line"><a name="l00756"></a><span class="lineno"> 756</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00757"></a><span class="lineno"> 757</span> <span class="preprocessor">} UPRV_BLOCK_MACRO_END</span></div><div class="line"><a name="l00758"></a><span class="lineno"> 758</span> </div><div class="line"><a name="l00783"></a><span class="lineno"><a class="line" href="utf8_8h.html#aeef5d89106e5cf1c48727100c0b315bd"> 783</a></span> <span class="preprocessor">#define U8_PREV_OR_FFFD(s, start, i, c) UPRV_BLOCK_MACRO_BEGIN { \</span></div><div class="line"><a name="l00784"></a><span class="lineno"> 784</span> <span class="preprocessor"> (c)=(uint8_t)(s)[--(i)]; \</span></div><div class="line"><a name="l00785"></a><span class="lineno"> 785</span> <span class="preprocessor"> if(!U8_IS_SINGLE(c)) { \</span></div><div class="line"><a name="l00786"></a><span class="lineno"> 786</span> <span class="preprocessor"> (c)=utf8_prevCharSafeBody((const uint8_t *)s, start, &(i), c, -3); \</span></div><div class="line"><a name="l00787"></a><span class="lineno"> 787</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00788"></a><span class="lineno"> 788</span> <span class="preprocessor">} UPRV_BLOCK_MACRO_END</span></div><div class="line"><a name="l00789"></a><span class="lineno"> 789</span> </div><div class="line"><a name="l00801"></a><span class="lineno"><a class="line" href="utf8_8h.html#a3969beb6252f8605ab678990c8af2f48"> 801</a></span> <span class="preprocessor">#define U8_BACK_1_UNSAFE(s, i) UPRV_BLOCK_MACRO_BEGIN { \</span></div><div class="line"><a name="l00802"></a><span class="lineno"> 802</span> <span class="preprocessor"> while(U8_IS_TRAIL((s)[--(i)])) {} \</span></div><div class="line"><a name="l00803"></a><span class="lineno"> 803</span> <span class="preprocessor">} UPRV_BLOCK_MACRO_END</span></div><div class="line"><a name="l00804"></a><span class="lineno"> 804</span> </div><div class="line"><a name="l00817"></a><span class="lineno"><a class="line" href="utf8_8h.html#adac4ee359e6233cb2990b1047fd5be3c"> 817</a></span> <span class="preprocessor">#define U8_BACK_1(s, start, i) UPRV_BLOCK_MACRO_BEGIN { \</span></div><div class="line"><a name="l00818"></a><span class="lineno"> 818</span> <span class="preprocessor"> if(U8_IS_TRAIL((s)[--(i)])) { \</span></div><div class="line"><a name="l00819"></a><span class="lineno"> 819</span> <span class="preprocessor"> (i)=utf8_back1SafeBody(s, start, (i)); \</span></div><div class="line"><a name="l00820"></a><span class="lineno"> 820</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00821"></a><span class="lineno"> 821</span> <span class="preprocessor">} UPRV_BLOCK_MACRO_END</span></div><div class="line"><a name="l00822"></a><span class="lineno"> 822</span> </div><div class="line"><a name="l00836"></a><span class="lineno"><a class="line" href="utf8_8h.html#aa36f62ea4ac87362e376e4cbea10098d"> 836</a></span> <span class="preprocessor">#define U8_BACK_N_UNSAFE(s, i, n) UPRV_BLOCK_MACRO_BEGIN { \</span></div><div class="line"><a name="l00837"></a><span class="lineno"> 837</span> <span class="preprocessor"> int32_t __N=(n); \</span></div><div class="line"><a name="l00838"></a><span class="lineno"> 838</span> <span class="preprocessor"> while(__N>0) { \</span></div><div class="line"><a name="l00839"></a><span class="lineno"> 839</span> <span class="preprocessor"> U8_BACK_1_UNSAFE(s, i); \</span></div><div class="line"><a name="l00840"></a><span class="lineno"> 840</span> <span class="preprocessor"> --__N; \</span></div><div class="line"><a name="l00841"></a><span class="lineno"> 841</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00842"></a><span class="lineno"> 842</span> <span class="preprocessor">} UPRV_BLOCK_MACRO_END</span></div><div class="line"><a name="l00843"></a><span class="lineno"> 843</span> </div><div class="line"><a name="l00858"></a><span class="lineno"><a class="line" href="utf8_8h.html#ab0ce585952c8ba4b103fb6b7aea801ba"> 858</a></span> <span class="preprocessor">#define U8_BACK_N(s, start, i, n) UPRV_BLOCK_MACRO_BEGIN { \</span></div><div class="line"><a name="l00859"></a><span class="lineno"> 859</span> <span class="preprocessor"> int32_t __N=(n); \</span></div><div class="line"><a name="l00860"></a><span class="lineno"> 860</span> <span class="preprocessor"> while(__N>0 && (i)>(start)) { \</span></div><div class="line"><a name="l00861"></a><span class="lineno"> 861</span> <span class="preprocessor"> U8_BACK_1(s, start, i); \</span></div><div class="line"><a name="l00862"></a><span class="lineno"> 862</span> <span class="preprocessor"> --__N; \</span></div><div class="line"><a name="l00863"></a><span class="lineno"> 863</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00864"></a><span class="lineno"> 864</span> <span class="preprocessor">} UPRV_BLOCK_MACRO_END</span></div><div class="line"><a name="l00865"></a><span class="lineno"> 865</span> </div><div class="line"><a name="l00879"></a><span class="lineno"><a class="line" href="utf8_8h.html#a910ba47de6d82fafc25b5e12f3a68588"> 879</a></span> <span class="preprocessor">#define U8_SET_CP_LIMIT_UNSAFE(s, i) UPRV_BLOCK_MACRO_BEGIN { \</span></div><div class="line"><a name="l00880"></a><span class="lineno"> 880</span> <span class="preprocessor"> U8_BACK_1_UNSAFE(s, i); \</span></div><div class="line"><a name="l00881"></a><span class="lineno"> 881</span> <span class="preprocessor"> U8_FWD_1_UNSAFE(s, i); \</span></div><div class="line"><a name="l00882"></a><span class="lineno"> 882</span> <span class="preprocessor">} UPRV_BLOCK_MACRO_END</span></div><div class="line"><a name="l00883"></a><span class="lineno"> 883</span> </div><div class="line"><a name="l00901"></a><span class="lineno"><a class="line" href="utf8_8h.html#a40fe523809a3a4e647e47513336b81d9"> 901</a></span> <span class="preprocessor">#define U8_SET_CP_LIMIT(s, start, i, length) UPRV_BLOCK_MACRO_BEGIN { \</span></div><div class="line"><a name="l00902"></a><span class="lineno"> 902</span> <span class="preprocessor"> if((start)<(i) && ((i)<(length) || (length)<0)) { \</span></div><div class="line"><a name="l00903"></a><span class="lineno"> 903</span> <span class="preprocessor"> U8_BACK_1(s, start, i); \</span></div><div class="line"><a name="l00904"></a><span class="lineno"> 904</span> <span class="preprocessor"> U8_FWD_1(s, i, length); \</span></div><div class="line"><a name="l00905"></a><span class="lineno"> 905</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00906"></a><span class="lineno"> 906</span> <span class="preprocessor">} UPRV_BLOCK_MACRO_END</span></div><div class="line"><a name="l00907"></a><span class="lineno"> 907</span> </div><div class="line"><a name="l00908"></a><span class="lineno"> 908</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="umachine_8h_html_a676114b1a64bb7c2de15c919a00b28df"><div class="ttname"><a href="umachine_8h.html#a676114b1a64bb7c2de15c919a00b28df">U_CAPI</a></div><div class="ttdeci">#define U_CAPI</div><div class="ttdoc">This is used to declare a function as a public ICU C API. </div><div class="ttdef"><b>Definition:</b> <a href="umachine_8h_source.html#l00110">umachine.h:110</a></div></div> <div class="ttc" id="utf8_8h_html_aebee4048c92a5a0e9eba0b4ea4dd8817"><div class="ttname"><a href="utf8_8h.html#aebee4048c92a5a0e9eba0b4ea4dd8817">utf8_prevCharSafeBody</a></div><div class="ttdeci">U_CAPI UChar32 utf8_prevCharSafeBody(const uint8_t *s, int32_t start, int32_t *pi, UChar32 c, int8_t strict)</div><div class="ttdoc">Function for handling "previous code point" with error-checking. </div></div> <div class="ttc" id="utf8_8h_html_a5841b67d88632d294e5feabc4980855e"><div class="ttname"><a href="utf8_8h.html#a5841b67d88632d294e5feabc4980855e">utf8_back1SafeBody</a></div><div class="ttdeci">U_CAPI int32_t utf8_back1SafeBody(const uint8_t *s, int32_t start, int32_t i)</div><div class="ttdoc">Function for handling "skip backward one code point" with error-checking. </div></div> <div class="ttc" id="umachine_8h_html"><div class="ttname"><a href="umachine_8h.html">umachine.h</a></div><div class="ttdoc">Basic types and constants for UTF. </div></div> <div class="ttc" id="utf_8h_html"><div class="ttname"><a href="utf_8h.html">utf.h</a></div><div class="ttdoc">C API: Code point macros. </div></div> <div class="ttc" id="utf8_8h_html_a1e020bdd5f37df249701305449ab4f09"><div class="ttname"><a href="utf8_8h.html#a1e020bdd5f37df249701305449ab4f09">utf8_appendCharSafeBody</a></div><div class="ttdeci">U_CAPI int32_t utf8_appendCharSafeBody(uint8_t *s, int32_t i, int32_t length, UChar32 c, UBool *pIsError)</div><div class="ttdoc">Function for handling "append code point" with error-checking. </div></div> <div class="ttc" id="umachine_8h_html_a09fff5c3b5a5b015324dc3ec3cf92809"><div class="ttname"><a href="umachine_8h.html#a09fff5c3b5a5b015324dc3ec3cf92809">UChar32</a></div><div class="ttdeci">int32_t UChar32</div><div class="ttdoc">Define UChar32 as a type for single Unicode code points. </div><div class="ttdef"><b>Definition:</b> <a href="umachine_8h_source.html#l00449">umachine.h:449</a></div></div> <div class="ttc" id="utf8_8h_html_a69dc81906db1f411db448af1f0a127bc"><div class="ttname"><a href="utf8_8h.html#a69dc81906db1f411db448af1f0a127bc">utf8_nextCharSafeBody</a></div><div class="ttdeci">U_CAPI UChar32 utf8_nextCharSafeBody(const uint8_t *s, int32_t *pi, int32_t length, UChar32 c, int8_t strict)</div><div class="ttdoc">Function for handling "next code point" with error-checking. </div></div> <div class="ttc" id="umachine_8h_html_a349ef00011f20ccd1d3b424445681aa5"><div class="ttname"><a href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a></div><div class="ttdeci">int8_t UBool</div><div class="ttdoc">The ICU boolean type, a signed-byte integer. </div><div class="ttdef"><b>Definition:</b> <a href="umachine_8h_source.html#l00269">umachine.h:269</a></div></div> </div><!-- fragment --></div><!-- contents --> <!-- start footer part --> <hr class="footer"/><address class="footer"><small> Generated by  <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/> </a> 1.8.14 </small></address> </body> </html>
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