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third_party/sqlite/src/ext/fts3/fts3_porter.c

 /*
 ** 2006 September 30
 **
 ** The author disclaims copyright to this source code.  In place of
 ** a legal notice, here is a blessing:
 **
 **    May you do good and not evil.
 **    May you find forgiveness for yourself and forgive others.
 **    May you share freely, never taking more than you give.
 **
@@ skipping 108 matching lines @@
 */
 static int porterClose(sqlite3_tokenizer_cursor *pCursor){
   porter_tokenizer_cursor *c = (porter_tokenizer_cursor *) pCursor;
   sqlite3_free(c->zToken);
   sqlite3_free(c);
   return SQLITE_OK;
 }
 /*
 ** Vowel or consonant
 */
-static const char cType[] = {
+static const char vOrCType[] = {
    0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0,
    1, 1, 1, 2, 1
 };
 
 /*
 ** isConsonant() and isVowel() determine if their first character in
 ** the string they point to is a consonant or a vowel, according
 ** to Porter ruls.  
 **
 ** A consonate is any letter other than 'a', 'e', 'i', 'o', or 'u'.
 ** 'Y' is a consonant unless it follows another consonant,
 ** in which case it is a vowel.
 **
 ** In these routine, the letters are in reverse order.  So the 'y' rule
 ** is that 'y' is a consonant unless it is followed by another
 ** consonent.
 */
 static int isVowel(const char*);
 static int isConsonant(const char *z){
   int j;
   char x = *z;
   if( x==0 ) return 0;
   assert( x>='a' && x<='z' );
-  j = cType[x-'a'];
+  j = vOrCType[x-'a'];
   if( j<2 ) return j;
   return z[1]==0 || isVowel(z + 1);
 }
 static int isVowel(const char *z){
   int j;
   char x = *z;
   if( x==0 ) return 0;
   assert( x>='a' && x<='z' );
-  j = cType[x-'a'];
+  j = vOrCType[x-'a'];
   if( j<2 ) return 1-j;
   return isConsonant(z + 1);
 }
 
 /*
 ** Let any sequence of one or more vowels be represented by V and let
 ** C be sequence of one or more consonants.  Then every word can be
 ** represented as:
 **
 **           [C] (VC){m} [V]
@@ skipping 459 matching lines @@
 ** Allocate a new porter tokenizer.  Return a pointer to the new
 ** tokenizer in *ppModule
 */
 void sqlite3Fts3PorterTokenizerModule(
   sqlite3_tokenizer_module const**ppModule
 ){
   *ppModule = &porterTokenizerModule;
 }
 
 #endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3) */