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 <span id="projectnumber">49.1.1</span>
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<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>
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<div class="title">utf8.h</div> </div>
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<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">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">*******************************************************************************</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">* Copyright (C) 1999-2011, International Business Machines</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">* Corporation and others. All Rights Reserved.</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">*</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">*******************************************************************************</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">* file name: utf8.h</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">* encoding: US-ASCII</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">* tab size: 8 (not used)</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">* indentation:4</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">*</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">* created on: 1999sep13</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">* created by: Markus W. Scherer</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">*/</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#ifndef __UTF8_H__</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor"></span><span class="preprocessor">#define __UTF8_H__</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#include "<a class="code" href="umachine_8h.html" title="Basic types and constants for UTF.">unicode/umachine.h</a>"</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#ifndef __UTF_H__</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor"></span><span class="preprocessor"># include "<a class="code" href="utf_8h.html" title="C API: Code point macros.">unicode/utf.h</a>"</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment">/* internal definitions ----------------------------------------------------- */</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor">#ifdef U_UTF8_IMPL</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="preprocessor"></span><a class="code" href="platform_8h.html#a7d78411159504c2d6770763f924a1792">U_EXPORT</a> <span class="keyword">const</span> uint8_t </div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="preprocessor">#elif defined(U_STATIC_IMPLEMENTATION) || defined(U_COMMON_IMPLEMENTATION)</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="preprocessor"></span><a class="code" href="umachine_8h.html#af702d65cba0638c5a8194cccc8d7c39e" title="This is used in a declaration of a library private ICU C function.">U_CFUNC</a> <span class="keyword">const</span> uint8_t</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="preprocessor"></span><a class="code" href="umachine_8h.html#af702d65cba0638c5a8194cccc8d7c39e" title="This is used in a declaration of a library private ICU C function.">U_CFUNC</a> <a class="code" href="platform_8h.html#a4099e2ee510ce74ddacfc2010306b8b5">U_IMPORT</a> <span class="keyword">const</span> uint8_t <span class="comment">/* U_IMPORT2? */</span> <span class="comment">/*U_IMPORT*/</span> </div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"><a class="code" href="utf8_8h.html#a4e3ae25d5856272ab60ab87c28572a99"> 60</a></span> <span class="preprocessor"></span><a class="code" href="utf8_8h.html#a4e3ae25d5856272ab60ab87c28572a99" title="Internal array with numbers of trail bytes for any given byte used in lead byte position.">utf8_countTrailBytes</a>[256];</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div>
<div class="line"><a name="l00069"></a><span class="lineno"><a class="code" href="utf8_8h.html#ae534bfef078b4f5d09e8da543a779db7"> 69</a></span> <span class="preprocessor">#define U8_COUNT_TRAIL_BYTES(leadByte) (utf8_countTrailBytes[(uint8_t)leadByte])</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00078"></a><span class="lineno"><a class="code" href="utf8_8h.html#ae8ed1045986b8bf27814e9bc78388961"> 78</a></span> <span class="preprocessor">#define U8_MASK_LEAD_BYTE(leadByte, countTrailBytes) ((leadByte)&=(1<<(6-(countTrailBytes)))-1)</span></div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <a class="code" href="umachine_8h.html#af3e3799716eaa41e3f49c7bf18c62b98" title="This is used to declare a function as a stable public ICU C API.">U_STABLE</a> <a class="code" href="umachine_8h.html#a09fff5c3b5a5b015324dc3ec3cf92809" title="Define UChar32 as a type for single Unicode code points.">UChar32</a> U_EXPORT2</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <a class="code" href="utf8_8h.html#a6eaf56eb54abb71eafcc0c347daa821f" title="Function for handling "next code point" with error-checking.">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" title="Define UChar32 as a type for single Unicode code points.">UChar32</a> c, <a class="code" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5" title="The ICU boolean type.">UBool</a> strict);</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <a class="code" href="umachine_8h.html#af3e3799716eaa41e3f49c7bf18c62b98" title="This is used to declare a function as a stable public ICU C API.">U_STABLE</a> int32_t U_EXPORT2</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <a class="code" href="utf8_8h.html#a6cf17491f1c237bbe5b002056b830fd3" title="Function for handling "append code point" with error-checking.">utf8_appendCharSafeBody</a>(uint8_t *s, int32_t i, int32_t length, <a class="code" href="umachine_8h.html#a09fff5c3b5a5b015324dc3ec3cf92809" title="Define UChar32 as a type for single Unicode code points.">UChar32</a> c, <a class="code" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5" title="The ICU boolean type.">UBool</a> *pIsError);</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> </div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <a class="code" href="umachine_8h.html#af3e3799716eaa41e3f49c7bf18c62b98" title="This is used to declare a function as a stable public ICU C API.">U_STABLE</a> <a class="code" href="umachine_8h.html#a09fff5c3b5a5b015324dc3ec3cf92809" title="Define UChar32 as a type for single Unicode code points.">UChar32</a> U_EXPORT2</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <a class="code" href="utf8_8h.html#a2bbae41d2d845750088a17dc55f59096" title="Function for handling "previous code point" with error-checking.">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" title="Define UChar32 as a type for single Unicode code points.">UChar32</a> c, <a class="code" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5" title="The ICU boolean type.">UBool</a> strict);</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> </div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <a class="code" href="umachine_8h.html#af3e3799716eaa41e3f49c7bf18c62b98" title="This is used to declare a function as a stable public ICU C API.">U_STABLE</a> int32_t U_EXPORT2</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <a class="code" href="utf8_8h.html#a4017310e2ecadac7dea5a432a33ccf30" title="Function for handling "skip backward one code point" with error-checking.">utf8_back1SafeBody</a>(<span class="keyword">const</span> uint8_t *s, int32_t start, int32_t i);</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> </div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="comment">/* single-code point definitions -------------------------------------------- */</span></div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div>
<div class="line"><a name="l00136"></a><span class="lineno"><a class="code" href="utf8_8h.html#a8f3a9427d880458a9fa6b169a3cc1b3c"> 136</a></span> <span class="preprocessor">#define U8_IS_SINGLE(c) (((c)&0x80)==0)</span></div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00144"></a><span class="lineno"><a class="code" href="utf8_8h.html#adb9837ea38dd811524a5b761ddc2a2ca"> 144</a></span> <span class="preprocessor">#define U8_IS_LEAD(c) ((uint8_t)((c)-0xc0)<0x3e)</span></div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00152"></a><span class="lineno"><a class="code" href="utf8_8h.html#afed9fc9bf480bf15a2e6051774f2d80e"> 152</a></span> <span class="preprocessor">#define U8_IS_TRAIL(c) (((c)&0xc0)==0x80)</span></div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00161"></a><span class="lineno"><a class="code" href="utf8_8h.html#af1730b8bbb3053465ee58702821846f1"> 161</a></span> <span class="preprocessor">#define U8_LENGTH(c) \</span></div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="preprocessor"> ((uint32_t)(c)<=0x7f ? 1 : \</span></div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> <span class="preprocessor"> ((uint32_t)(c)<=0x7ff ? 2 : \</span></div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> <span class="preprocessor"> ((uint32_t)(c)<=0xd7ff ? 3 : \</span></div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> <span class="preprocessor"> ((uint32_t)(c)<=0xdfff || (uint32_t)(c)>0x10ffff ? 0 : \</span></div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <span class="preprocessor"> ((uint32_t)(c)<=0xffff ? 3 : 4)\</span></div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> <span class="preprocessor"> ) \</span></div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> <span class="preprocessor"> ) \</span></div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="preprocessor"> ) \</span></div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span> <span class="preprocessor"> )</span></div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00177"></a><span class="lineno"><a class="code" href="utf8_8h.html#aa2298b48749d9f45772c8f5a6885464a"> 177</a></span> <span class="preprocessor">#define U8_MAX_LENGTH 4</span></div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00195"></a><span class="lineno"><a class="code" href="utf8_8h.html#a125e5e7a4ef2f3f57b078f706b2b67f8"> 195</a></span> <span class="preprocessor">#define U8_GET_UNSAFE(s, i, c) { \</span></div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> <span class="preprocessor"> int32_t _u8_get_unsafe_index=(int32_t)(i); \</span></div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="preprocessor"> U8_SET_CP_START_UNSAFE(s, _u8_get_unsafe_index); \</span></div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <span class="preprocessor"> U8_NEXT_UNSAFE(s, _u8_get_unsafe_index, c); \</span></div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span> <span class="preprocessor">}</span></div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00219"></a><span class="lineno"><a class="code" href="utf8_8h.html#a10a57a084d75604c4a81fb5eec46ae6a"> 219</a></span> <span class="preprocessor">#define U8_GET(s, start, i, length, c) { \</span></div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span> <span class="preprocessor"> int32_t _u8_get_index=(int32_t)(i); \</span></div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> <span class="preprocessor"> U8_SET_CP_START(s, start, _u8_get_index); \</span></div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span> <span class="preprocessor"> U8_NEXT(s, _u8_get_index, length, c); \</span></div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> <span class="preprocessor">}</span></div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span> <span class="comment">/* definitions with forward iteration --------------------------------------- */</span></div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> </div>
<div class="line"><a name="l00244"></a><span class="lineno"><a class="code" href="utf8_8h.html#a28ecdb4233301285fc4ce7f9ea1ed644"> 244</a></span> <span class="preprocessor">#define U8_NEXT_UNSAFE(s, i, c) { \</span></div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span> <span class="preprocessor"> (c)=(uint8_t)(s)[(i)++]; \</span></div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span> <span class="preprocessor"> if((uint8_t)((c)-0xc0)<0x35) { \</span></div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span> <span class="preprocessor"> uint8_t __count=U8_COUNT_TRAIL_BYTES(c); \</span></div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span> <span class="preprocessor"> U8_MASK_LEAD_BYTE(c, __count); \</span></div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span> <span class="preprocessor"> switch(__count) { \</span></div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span> <span class="preprocessor"> </span><span class="comment">/* each following branch falls through to the next one */</span><span class="preprocessor"> \</span></div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span> <span class="preprocessor"> case 3: \</span></div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span> <span class="preprocessor"> (c)=((c)<<6)|((s)[(i)++]&0x3f); \</span></div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span> <span class="preprocessor"> case 2: \</span></div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span> <span class="preprocessor"> (c)=((c)<<6)|((s)[(i)++]&0x3f); \</span></div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span> <span class="preprocessor"> case 1: \</span></div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span> <span class="preprocessor"> (c)=((c)<<6)|((s)[(i)++]&0x3f); \</span></div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span> <span class="preprocessor"> </span><span class="comment">/* no other branches to optimize switch() */</span><span class="preprocessor"> \</span></div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span> <span class="preprocessor"> break; \</span></div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span> <span class="preprocessor"> } \</span></div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span> <span class="preprocessor"> } \</span></div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span> <span class="preprocessor">}</span></div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00281"></a><span class="lineno"><a class="code" href="utf8_8h.html#a57f3e5429ae4edb27a42367c627aa482"> 281</a></span> <span class="preprocessor">#define U8_NEXT(s, i, length, c) { \</span></div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span> <span class="preprocessor"> (c)=(uint8_t)(s)[(i)++]; \</span></div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span> <span class="preprocessor"> if((c)>=0x80) { \</span></div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span> <span class="preprocessor"> uint8_t __t1, __t2; \</span></div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span> <span class="preprocessor"> if( </span><span class="comment">/* handle U+1000..U+CFFF inline */</span><span class="preprocessor"> \</span></div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span> <span class="preprocessor"> (0xe0<(c) && (c)<=0xec) && \</span></div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span> <span class="preprocessor"> (((i)+1)<(length)) && \</span></div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span> <span class="preprocessor"> (__t1=(uint8_t)((s)[i]-0x80))<=0x3f && \</span></div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span> <span class="preprocessor"> (__t2=(uint8_t)((s)[(i)+1]-0x80))<= 0x3f \</span></div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span> <span class="preprocessor"> ) { \</span></div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</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="l00292"></a><span class="lineno"> 292</span> <span class="preprocessor"> (c)=(UChar)(((c)<<12)|(__t1<<6)|__t2); \</span></div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span> <span class="preprocessor"> (i)+=2; \</span></div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span> <span class="preprocessor"> } else if( </span><span class="comment">/* handle U+0080..U+07FF inline */</span><span class="preprocessor"> \</span></div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span> <span class="preprocessor"> ((c)<0xe0 && (c)>=0xc2) && \</span></div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span> <span class="preprocessor"> ((i)<(length)) && \</span></div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span> <span class="preprocessor"> (__t1=(uint8_t)((s)[i]-0x80))<=0x3f \</span></div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span> <span class="preprocessor"> ) { \</span></div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span> <span class="preprocessor"> (c)=(UChar)((((c)&0x1f)<<6)|__t1); \</span></div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span> <span class="preprocessor"> ++(i); \</span></div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span> <span class="preprocessor"> } else if(U8_IS_LEAD(c)) { \</span></div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span> <span class="preprocessor"> </span><span class="comment">/* function call for "complicated" and error cases */</span><span class="preprocessor"> \</span></div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span> <span class="preprocessor"> (c)=utf8_nextCharSafeBody((const uint8_t *)s, &(i), (int32_t)(length), c, -1); \</span></div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span> <span class="preprocessor"> } else { \</span></div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span> <span class="preprocessor"> (c)=U_SENTINEL; \</span></div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span> <span class="preprocessor"> } \</span></div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span> <span class="preprocessor"> } \</span></div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span> <span class="preprocessor">}</span></div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00323"></a><span class="lineno"><a class="code" href="utf8_8h.html#a154f04764da5af41729c4df6bf9e09f3"> 323</a></span> <span class="preprocessor">#define U8_APPEND_UNSAFE(s, i, c) { \</span></div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span> <span class="preprocessor"> if((uint32_t)(c)<=0x7f) { \</span></div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span> <span class="preprocessor"> (s)[(i)++]=(uint8_t)(c); \</span></div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span> <span class="preprocessor"> } else { \</span></div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span> <span class="preprocessor"> if((uint32_t)(c)<=0x7ff) { \</span></div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span> <span class="preprocessor"> (s)[(i)++]=(uint8_t)(((c)>>6)|0xc0); \</span></div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span> <span class="preprocessor"> } else { \</span></div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span> <span class="preprocessor"> if((uint32_t)(c)<=0xffff) { \</span></div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span> <span class="preprocessor"> (s)[(i)++]=(uint8_t)(((c)>>12)|0xe0); \</span></div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span> <span class="preprocessor"> } else { \</span></div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span> <span class="preprocessor"> (s)[(i)++]=(uint8_t)(((c)>>18)|0xf0); \</span></div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span> <span class="preprocessor"> (s)[(i)++]=(uint8_t)((((c)>>12)&0x3f)|0x80); \</span></div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span> <span class="preprocessor"> } \</span></div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span> <span class="preprocessor"> (s)[(i)++]=(uint8_t)((((c)>>6)&0x3f)|0x80); \</span></div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span> <span class="preprocessor"> } \</span></div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span> <span class="preprocessor"> (s)[(i)++]=(uint8_t)(((c)&0x3f)|0x80); \</span></div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span> <span class="preprocessor"> } \</span></div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span> <span class="preprocessor">}</span></div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00359"></a><span class="lineno"><a class="code" href="utf8_8h.html#a8a013997e3d13c501ce73bc45e662881"> 359</a></span> <span class="preprocessor">#define U8_APPEND(s, i, capacity, c, isError) { \</span></div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span> <span class="preprocessor"> if((uint32_t)(c)<=0x7f) { \</span></div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span> <span class="preprocessor"> (s)[(i)++]=(uint8_t)(c); \</span></div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span> <span class="preprocessor"> } else if((uint32_t)(c)<=0x7ff && (i)+1<(capacity)) { \</span></div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span> <span class="preprocessor"> (s)[(i)++]=(uint8_t)(((c)>>6)|0xc0); \</span></div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span> <span class="preprocessor"> (s)[(i)++]=(uint8_t)(((c)&0x3f)|0x80); \</span></div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span> <span class="preprocessor"> } else if((uint32_t)(c)<=0xd7ff && (i)+2<(capacity)) { \</span></div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span> <span class="preprocessor"> (s)[(i)++]=(uint8_t)(((c)>>12)|0xe0); \</span></div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span> <span class="preprocessor"> (s)[(i)++]=(uint8_t)((((c)>>6)&0x3f)|0x80); \</span></div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span> <span class="preprocessor"> (s)[(i)++]=(uint8_t)(((c)&0x3f)|0x80); \</span></div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span> <span class="preprocessor"> } else { \</span></div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span> <span class="preprocessor"> (i)=utf8_appendCharSafeBody(s, (int32_t)(i), (int32_t)(capacity), c, &(isError)); \</span></div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span> <span class="preprocessor"> } \</span></div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span> <span class="preprocessor">}</span></div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00384"></a><span class="lineno"><a class="code" href="utf8_8h.html#a64a8113aea2125f806cbf5d77294b3cd"> 384</a></span> <span class="preprocessor">#define U8_FWD_1_UNSAFE(s, i) { \</span></div>
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span> <span class="preprocessor"> (i)+=1+U8_COUNT_TRAIL_BYTES((s)[i]); \</span></div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span> <span class="preprocessor">}</span></div>
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00399"></a><span class="lineno"><a class="code" href="utf8_8h.html#a6d4c94e845b059fddba0c51e9bad87fd"> 399</a></span> <span class="preprocessor">#define U8_FWD_1(s, i, length) { \</span></div>
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span> <span class="preprocessor"> uint8_t __b=(uint8_t)(s)[(i)++]; \</span></div>
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span> <span class="preprocessor"> if(U8_IS_LEAD(__b)) { \</span></div>
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span> <span class="preprocessor"> uint8_t __count=U8_COUNT_TRAIL_BYTES(__b); \</span></div>
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span> <span class="preprocessor"> if((i)+__count>(length)) { \</span></div>
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span> <span class="preprocessor"> __count=(uint8_t)((length)-(i)); \</span></div>
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span> <span class="preprocessor"> } \</span></div>
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span> <span class="preprocessor"> while(__count>0 && U8_IS_TRAIL((s)[i])) { \</span></div>
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span> <span class="preprocessor"> ++(i); \</span></div>
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span> <span class="preprocessor"> --__count; \</span></div>
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span> <span class="preprocessor"> } \</span></div>
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span> <span class="preprocessor"> } \</span></div>
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span> <span class="preprocessor">}</span></div>
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00425"></a><span class="lineno"><a class="code" href="utf8_8h.html#a8e8b4218834110431798cc84a0a664ae"> 425</a></span> <span class="preprocessor">#define U8_FWD_N_UNSAFE(s, i, n) { \</span></div>
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span> <span class="preprocessor"> int32_t __N=(n); \</span></div>
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span> <span class="preprocessor"> while(__N>0) { \</span></div>
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span> <span class="preprocessor"> U8_FWD_1_UNSAFE(s, i); \</span></div>
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span> <span class="preprocessor"> --__N; \</span></div>
<div class="line"><a name="l00430"></a><span class="lineno"> 430</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="l00446"></a><span class="lineno"><a class="code" href="utf8_8h.html#a9a311dc48b8aa1050345b886adabf213"> 446</a></span> <span class="preprocessor">#define U8_FWD_N(s, i, length, n) { \</span></div>
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span> <span class="preprocessor"> int32_t __N=(n); \</span></div>
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span> <span class="preprocessor"> while(__N>0 && (i)<(length)) { \</span></div>
<div class="line"><a name="l00449"></a><span class="lineno"> 449</span> <span class="preprocessor"> U8_FWD_1(s, i, length); \</span></div>
<div class="line"><a name="l00450"></a><span class="lineno"> 450</span> <span class="preprocessor"> --__N; \</span></div>
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span> <span class="preprocessor"> } \</span></div>
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span> <span class="preprocessor">}</span></div>
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00467"></a><span class="lineno"><a class="code" href="utf8_8h.html#ac46a385dbf64c97337522e1d1875a57e"> 467</a></span> <span class="preprocessor">#define U8_SET_CP_START_UNSAFE(s, i) { \</span></div>
<div class="line"><a name="l00468"></a><span class="lineno"> 468</span> <span class="preprocessor"> while(U8_IS_TRAIL((s)[i])) { --(i); } \</span></div>
<div class="line"><a name="l00469"></a><span class="lineno"> 469</span> <span class="preprocessor">}</span></div>
<div class="line"><a name="l00470"></a><span class="lineno"> 470</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00485"></a><span class="lineno"><a class="code" href="utf8_8h.html#aa6d33627a8a5420a8f61e50da2aeca2a"> 485</a></span> <span class="preprocessor">#define U8_SET_CP_START(s, start, i) { \</span></div>
<div class="line"><a name="l00486"></a><span class="lineno"> 486</span> <span class="preprocessor"> if(U8_IS_TRAIL((s)[(i)])) { \</span></div>
<div class="line"><a name="l00487"></a><span class="lineno"> 487</span> <span class="preprocessor"> (i)=utf8_back1SafeBody(s, start, (int32_t)(i)); \</span></div>
<div class="line"><a name="l00488"></a><span class="lineno"> 488</span> <span class="preprocessor"> } \</span></div>
<div class="line"><a name="l00489"></a><span class="lineno"> 489</span> <span class="preprocessor">}</span></div>
<div class="line"><a name="l00490"></a><span class="lineno"> 490</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00491"></a><span class="lineno"> 491</span> <span class="comment">/* definitions with backward iteration -------------------------------------- */</span></div>
<div class="line"><a name="l00492"></a><span class="lineno"> 492</span> </div>
<div class="line"><a name="l00512"></a><span class="lineno"><a class="code" href="utf8_8h.html#a5f78eb19a6b25f61dccbae45d6ecf955"> 512</a></span> <span class="preprocessor">#define U8_PREV_UNSAFE(s, i, c) { \</span></div>
<div class="line"><a name="l00513"></a><span class="lineno"> 513</span> <span class="preprocessor"> (c)=(uint8_t)(s)[--(i)]; \</span></div>
<div class="line"><a name="l00514"></a><span class="lineno"> 514</span> <span class="preprocessor"> if(U8_IS_TRAIL(c)) { \</span></div>
<div class="line"><a name="l00515"></a><span class="lineno"> 515</span> <span class="preprocessor"> uint8_t __b, __count=1, __shift=6; \</span></div>
<div class="line"><a name="l00516"></a><span class="lineno"> 516</span> <span class="preprocessor">\</span></div>
<div class="line"><a name="l00517"></a><span class="lineno"> 517</span> <span class="preprocessor"> </span><span class="comment">/* c is a trail byte */</span><span class="preprocessor"> \</span></div>
<div class="line"><a name="l00518"></a><span class="lineno"> 518</span> <span class="preprocessor"> (c)&=0x3f; \</span></div>
<div class="line"><a name="l00519"></a><span class="lineno"> 519</span> <span class="preprocessor"> for(;;) { \</span></div>
<div class="line"><a name="l00520"></a><span class="lineno"> 520</span> <span class="preprocessor"> __b=(uint8_t)(s)[--(i)]; \</span></div>
<div class="line"><a name="l00521"></a><span class="lineno"> 521</span> <span class="preprocessor"> if(__b>=0xc0) { \</span></div>
<div class="line"><a name="l00522"></a><span class="lineno"> 522</span> <span class="preprocessor"> U8_MASK_LEAD_BYTE(__b, __count); \</span></div>
<div class="line"><a name="l00523"></a><span class="lineno"> 523</span> <span class="preprocessor"> (c)|=(UChar32)__b<<__shift; \</span></div>
<div class="line"><a name="l00524"></a><span class="lineno"> 524</span> <span class="preprocessor"> break; \</span></div>
<div class="line"><a name="l00525"></a><span class="lineno"> 525</span> <span class="preprocessor"> } else { \</span></div>
<div class="line"><a name="l00526"></a><span class="lineno"> 526</span> <span class="preprocessor"> (c)|=(UChar32)(__b&0x3f)<<__shift; \</span></div>
<div class="line"><a name="l00527"></a><span class="lineno"> 527</span> <span class="preprocessor"> ++__count; \</span></div>
<div class="line"><a name="l00528"></a><span class="lineno"> 528</span> <span class="preprocessor"> __shift+=6; \</span></div>
<div class="line"><a name="l00529"></a><span class="lineno"> 529</span> <span class="preprocessor"> } \</span></div>
<div class="line"><a name="l00530"></a><span class="lineno"> 530</span> <span class="preprocessor"> } \</span></div>
<div class="line"><a name="l00531"></a><span class="lineno"> 531</span> <span class="preprocessor"> } \</span></div>
<div class="line"><a name="l00532"></a><span class="lineno"> 532</span> <span class="preprocessor">}</span></div>
<div class="line"><a name="l00533"></a><span class="lineno"> 533</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00554"></a><span class="lineno"><a class="code" href="utf8_8h.html#a17287c1f01ce84fdf8852a756643b076"> 554</a></span> <span class="preprocessor">#define U8_PREV(s, start, i, c) { \</span></div>
<div class="line"><a name="l00555"></a><span class="lineno"> 555</span> <span class="preprocessor"> (c)=(uint8_t)(s)[--(i)]; \</span></div>
<div class="line"><a name="l00556"></a><span class="lineno"> 556</span> <span class="preprocessor"> if((c)>=0x80) { \</span></div>
<div class="line"><a name="l00557"></a><span class="lineno"> 557</span> <span class="preprocessor"> if((c)<=0xbf) { \</span></div>
<div class="line"><a name="l00558"></a><span class="lineno"> 558</span> <span class="preprocessor"> (c)=utf8_prevCharSafeBody((const uint8_t *)s, start, &(i), c, -1); \</span></div>
<div class="line"><a name="l00559"></a><span class="lineno"> 559</span> <span class="preprocessor"> } else { \</span></div>
<div class="line"><a name="l00560"></a><span class="lineno"> 560</span> <span class="preprocessor"> (c)=U_SENTINEL; \</span></div>
<div class="line"><a name="l00561"></a><span class="lineno"> 561</span> <span class="preprocessor"> } \</span></div>
<div class="line"><a name="l00562"></a><span class="lineno"> 562</span> <span class="preprocessor"> } \</span></div>
<div class="line"><a name="l00563"></a><span class="lineno"> 563</span> <span class="preprocessor">}</span></div>
<div class="line"><a name="l00564"></a><span class="lineno"> 564</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00576"></a><span class="lineno"><a class="code" href="utf8_8h.html#a3969beb6252f8605ab678990c8af2f48"> 576</a></span> <span class="preprocessor">#define U8_BACK_1_UNSAFE(s, i) { \</span></div>
<div class="line"><a name="l00577"></a><span class="lineno"> 577</span> <span class="preprocessor"> while(U8_IS_TRAIL((s)[--(i)])) {} \</span></div>
<div class="line"><a name="l00578"></a><span class="lineno"> 578</span> <span class="preprocessor">}</span></div>
<div class="line"><a name="l00579"></a><span class="lineno"> 579</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00592"></a><span class="lineno"><a class="code" href="utf8_8h.html#adac4ee359e6233cb2990b1047fd5be3c"> 592</a></span> <span class="preprocessor">#define U8_BACK_1(s, start, i) { \</span></div>
<div class="line"><a name="l00593"></a><span class="lineno"> 593</span> <span class="preprocessor"> if(U8_IS_TRAIL((s)[--(i)])) { \</span></div>
<div class="line"><a name="l00594"></a><span class="lineno"> 594</span> <span class="preprocessor"> (i)=utf8_back1SafeBody(s, start, (int32_t)(i)); \</span></div>
<div class="line"><a name="l00595"></a><span class="lineno"> 595</span> <span class="preprocessor"> } \</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"></span></div>
<div class="line"><a name="l00611"></a><span class="lineno"><a class="code" href="utf8_8h.html#aa36f62ea4ac87362e376e4cbea10098d"> 611</a></span> <span class="preprocessor">#define U8_BACK_N_UNSAFE(s, i, n) { \</span></div>
<div class="line"><a name="l00612"></a><span class="lineno"> 612</span> <span class="preprocessor"> int32_t __N=(n); \</span></div>
<div class="line"><a name="l00613"></a><span class="lineno"> 613</span> <span class="preprocessor"> while(__N>0) { \</span></div>
<div class="line"><a name="l00614"></a><span class="lineno"> 614</span> <span class="preprocessor"> U8_BACK_1_UNSAFE(s, i); \</span></div>
<div class="line"><a name="l00615"></a><span class="lineno"> 615</span> <span class="preprocessor"> --__N; \</span></div>
<div class="line"><a name="l00616"></a><span class="lineno"> 616</span> <span class="preprocessor"> } \</span></div>
<div class="line"><a name="l00617"></a><span class="lineno"> 617</span> <span class="preprocessor">}</span></div>
<div class="line"><a name="l00618"></a><span class="lineno"> 618</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00633"></a><span class="lineno"><a class="code" href="utf8_8h.html#ab0ce585952c8ba4b103fb6b7aea801ba"> 633</a></span> <span class="preprocessor">#define U8_BACK_N(s, start, i, n) { \</span></div>
<div class="line"><a name="l00634"></a><span class="lineno"> 634</span> <span class="preprocessor"> int32_t __N=(n); \</span></div>
<div class="line"><a name="l00635"></a><span class="lineno"> 635</span> <span class="preprocessor"> while(__N>0 && (i)>(start)) { \</span></div>
<div class="line"><a name="l00636"></a><span class="lineno"> 636</span> <span class="preprocessor"> U8_BACK_1(s, start, i); \</span></div>
<div class="line"><a name="l00637"></a><span class="lineno"> 637</span> <span class="preprocessor"> --__N; \</span></div>
<div class="line"><a name="l00638"></a><span class="lineno"> 638</span> <span class="preprocessor"> } \</span></div>
<div class="line"><a name="l00639"></a><span class="lineno"> 639</span> <span class="preprocessor">}</span></div>
<div class="line"><a name="l00640"></a><span class="lineno"> 640</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00654"></a><span class="lineno"><a class="code" href="utf8_8h.html#a910ba47de6d82fafc25b5e12f3a68588"> 654</a></span> <span class="preprocessor">#define U8_SET_CP_LIMIT_UNSAFE(s, i) { \</span></div>
<div class="line"><a name="l00655"></a><span class="lineno"> 655</span> <span class="preprocessor"> U8_BACK_1_UNSAFE(s, i); \</span></div>
<div class="line"><a name="l00656"></a><span class="lineno"> 656</span> <span class="preprocessor"> U8_FWD_1_UNSAFE(s, i); \</span></div>
<div class="line"><a name="l00657"></a><span class="lineno"> 657</span> <span class="preprocessor">}</span></div>
<div class="line"><a name="l00658"></a><span class="lineno"> 658</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00674"></a><span class="lineno"><a class="code" href="utf8_8h.html#a40fe523809a3a4e647e47513336b81d9"> 674</a></span> <span class="preprocessor">#define U8_SET_CP_LIMIT(s, start, i, length) { \</span></div>
<div class="line"><a name="l00675"></a><span class="lineno"> 675</span> <span class="preprocessor"> if((start)<(i) && (i)<(length)) { \</span></div>
<div class="line"><a name="l00676"></a><span class="lineno"> 676</span> <span class="preprocessor"> U8_BACK_1(s, start, i); \</span></div>
<div class="line"><a name="l00677"></a><span class="lineno"> 677</span> <span class="preprocessor"> U8_FWD_1(s, i, length); \</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">}</span></div>
<div class="line"><a name="l00680"></a><span class="lineno"> 680</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00681"></a><span class="lineno"> 681</span> <span class="preprocessor">#endif</span></div>
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