[sql] Import reference version of SQLite 3.10.2.

third_party/sqlite/sqlite-src-3100200/ext/fts5/fts5_unicode2.c

Index: third_party/sqlite/sqlite-src-3100200/ext/fts5/fts5_unicode2.c
diff --git a/third_party/sqlite/src/ext/fts3/fts3_unicode2.c b/third_party/sqlite/sqlite-src-3100200/ext/fts5/fts5_unicode2.c
similarity index 95%
copy from third_party/sqlite/src/ext/fts3/fts3_unicode2.c
copy to third_party/sqlite/sqlite-src-3100200/ext/fts5/fts5_unicode2.c
index 20b7a25dbfd4ea9db9ac18b9f48d50cc266b9df0..8ad709d0fd6b4528f9e2b94bf326b361386fa136 100644
--- a/third_party/sqlite/src/ext/fts3/fts3_unicode2.c
+++ b/third_party/sqlite/sqlite-src-3100200/ext/fts5/fts5_unicode2.c
@@ -15,8 +15,6 @@
 ** DO NOT EDIT THIS MACHINE GENERATED FILE.
 */
 
-#ifndef SQLITE_DISABLE_FTS3_UNICODE
-#if defined(SQLITE_ENABLE_FTS3) || defined(SQLITE_ENABLE_FTS4)
 
 #include <assert.h>
 
@@ -27,7 +25,7 @@
 ** The results are undefined if the value passed to this function
 ** is less than zero.
 */
-int sqlite3FtsUnicodeIsalnum(int c){
+int sqlite3Fts5UnicodeIsalnum(int c){
   /* Each unsigned integer in the following array corresponds to a contiguous
   ** range of unicode codepoints that are not either letters or numbers (i.e.
   ** codepoints for which this function should return 0).
@@ -159,7 +157,7 @@ int sqlite3FtsUnicodeIsalnum(int c){
 ** E"). The resuls of passing a codepoint that corresponds to an
 ** uppercase letter are undefined.
 */
-static int remove_diacritic(int c){
+static int fts5_remove_diacritic(int c){
   unsigned short aDia[] = {
         0,  1797,  1848,  1859,  1891,  1928,  1940,  1995, 
      2024,  2040,  2060,  2110,  2168,  2206,  2264,  2286, 
@@ -209,7 +207,7 @@ static int remove_diacritic(int c){
 ** Return true if the argument interpreted as a unicode codepoint
 ** is a diacritical modifier character.
 */
-int sqlite3FtsUnicodeIsdiacritic(int c){
+int sqlite3Fts5UnicodeIsdiacritic(int c){
   unsigned int mask0 = 0x08029FDF;
   unsigned int mask1 = 0x000361F8;
   if( c<768 || c>817 ) return 0;
@@ -228,7 +226,7 @@ int sqlite3FtsUnicodeIsdiacritic(int c){
 ** The results are undefined if the value passed to this function
 ** is less than zero.
 */
-int sqlite3FtsUnicodeFold(int c, int bRemoveDiacritic){
+int sqlite3Fts5UnicodeFold(int c, int bRemoveDiacritic){
   /* Each entry in the following array defines a rule for folding a range
   ** of codepoints to lower case. The rule applies to a range of nRange
   ** codepoints starting at codepoint iCode.
@@ -322,16 +320,17 @@ int sqlite3FtsUnicodeFold(int c, int bRemoveDiacritic){
 
   int ret = c;
 
-  assert( c>=0 );
   assert( sizeof(unsigned short)==2 && sizeof(unsigned char)==1 );
 
   if( c<128 ){
     if( c>='A' && c<='Z' ) ret = c + ('a' - 'A');
   }else if( c<65536 ){
+    const struct TableEntry *p;
     int iHi = sizeof(aEntry)/sizeof(aEntry[0]) - 1;
     int iLo = 0;
     int iRes = -1;
 
+    assert( c>aEntry[0].iCode );
     while( iHi>=iLo ){
       int iTest = (iHi + iLo) / 2;
       int cmp = (c - aEntry[iTest].iCode);
@@ -342,17 +341,15 @@ int sqlite3FtsUnicodeFold(int c, int bRemoveDiacritic){
         iHi = iTest-1;
       }
     }
-    assert( iRes<0 || c>=aEntry[iRes].iCode );
 
-    if( iRes>=0 ){
-      const struct TableEntry *p = &aEntry[iRes];
-      if( c<(p->iCode + p->nRange) && 0==(0x01 & p->flags & (p->iCode ^ c)) ){
-        ret = (c + (aiOff[p->flags>>1])) & 0x0000FFFF;
-        assert( ret>0 );
-      }
+    assert( iRes>=0 && c>=aEntry[iRes].iCode );
+    p = &aEntry[iRes];
+    if( c<(p->iCode + p->nRange) && 0==(0x01 & p->flags & (p->iCode ^ c)) ){
+      ret = (c + (aiOff[p->flags>>1])) & 0x0000FFFF;
+      assert( ret>0 );
     }
 
-    if( bRemoveDiacritic ) ret = remove_diacritic(ret);
+    if( bRemoveDiacritic ) ret = fts5_remove_diacritic(ret);
   }
   
   else if( c>=66560 && c<66600 ){
@@ -361,5 +358,3 @@ int sqlite3FtsUnicodeFold(int c, int bRemoveDiacritic){
 
   return ret;
 }
-#endif /* defined(SQLITE_ENABLE_FTS3) || defined(SQLITE_ENABLE_FTS4) */
-#endif /* !defined(SQLITE_DISABLE_FTS3_UNICODE) */