317   const unsigned char *z2;  in substrFunc()  local
341       for(z2=z; *z2; len++){  in substrFunc()
342         SQLITE_SKIP_UTF8(z2);  in substrFunc()
388     for(z2=z; *z2 && p2; p2--){  in substrFunc()
389       SQLITE_SKIP_UTF8(z2);  in substrFunc()
391     sqlite3_result_text64(context, (char*)z, z2-z, SQLITE_TRANSIENT,  in substrFunc()
470   const char *z2;  in upperFunc()  local
473   z2 = (char*)sqlite3_value_text(argv[0]);  in upperFunc()
476   assert( z2==(char*)sqlite3_value_text(argv[0]) );  in upperFunc()
477   if( z2 ){  in upperFunc()
481         z1[i] = (char)sqlite3Toupper(z2[i]);  in upperFunc()
489   const char *z2;  in lowerFunc()  local
492   z2 = (char*)sqlite3_value_text(argv[0]);  in lowerFunc()
495   assert( z2==(char*)sqlite3_value_text(argv[0]) );  in lowerFunc()
496   if( z2 ){  in lowerFunc()
500         z1[i] = sqlite3Tolower(z2[i]);  in lowerFunc()