80 static void nextCharAppend(nextCharContext *p, unsigned c){  in nextCharAppend()  argument
83     if( p->aResult[i]==c ) return;  in nextCharAppend()
97   p->aResult[p->nUsed++] = c;  in nextCharAppend()
104 static int writeUtf8(unsigned char *z, unsigned c){  in writeUtf8()  argument
105   if( c<0x00080 ){  in writeUtf8()
106     z[0] = (unsigned char)(c&0xff);  in writeUtf8()
109   if( c<0x00800 ){  in writeUtf8()
110     z[0] = 0xC0 + (unsigned char)((c>>6)&0x1F);  in writeUtf8()
111     z[1] = 0x80 + (unsigned char)(c & 0x3F);  in writeUtf8()
114   if( c<0x10000 ){  in writeUtf8()
115     z[0] = 0xE0 + (unsigned char)((c>>12)&0x0F);  in writeUtf8()
116     z[1] = 0x80 + (unsigned char)((c>>6) & 0x3F);  in writeUtf8()
117     z[2] = 0x80 + (unsigned char)(c & 0x3F);  in writeUtf8()
120   z[0] = 0xF0 + (unsigned char)((c>>18) & 0x07);  in writeUtf8()
121   z[1] = 0x80 + (unsigned char)((c>>12) & 0x3F);  in writeUtf8()
122   z[2] = 0x80 + (unsigned char)((c>>6) & 0x3F);  in writeUtf8()
123   z[3] = 0x80 + (unsigned char)(c & 0x3F);  in writeUtf8()
142   unsigned c = z[0];  in readUtf8()  local
143   if( c<0xc0 ){  in readUtf8()
144     *pOut = c;  in readUtf8()
148     c = validBits[c-0xc0];  in readUtf8()
150       c = (c<<6) + (0x3f & z[n++]);  in readUtf8()
152     if( c<0x80 || (c&0xFFFFF800)==0xD800 || (c&0xFFFFFFFE)==0xFFFE ){  in readUtf8()
153       c = 0xFFFD;  in readUtf8()
155     *pOut = c;  in readUtf8()
206   nextCharContext c;  in nextCharFunc()  local
216   memset(&c, 0, sizeof(c));  in nextCharFunc()
217   c.db = sqlite3_context_db_handle(context);  in nextCharFunc()
218   c.zPrefix = sqlite3_value_text(argv[0]);  in nextCharFunc()
219   c.nPrefix = sqlite3_value_bytes(argv[0]);  in nextCharFunc()
220   if( zTable==0 || zField==0 || c.zPrefix==0 ) return;  in nextCharFunc()
261   rc = sqlite3_prepare_v2(c.db, zSql, -1, &c.pStmt, 0);  in nextCharFunc()
264     sqlite3_result_error(context, sqlite3_errmsg(c.db), -1);  in nextCharFunc()
267   findNextChars(&c);  in nextCharFunc()
268   if( c.mallocFailed ){  in nextCharFunc()
272     pRes = sqlite3_malloc64( c.nUsed*4 + 1 );  in nextCharFunc()
278       for(i=0; i<c.nUsed; i++){  in nextCharFunc()
279         n += writeUtf8(pRes+n, c.aResult[i]);  in nextCharFunc()
285   sqlite3_finalize(c.pStmt);  in nextCharFunc()
286   sqlite3_free(c.aResult);  in nextCharFunc()