Conditionals:

IF operand_type_1 operand_1 operator operand_type_2 operand_2
THEN
   block
ELSE
   block

operand_type_1,operand_type_2 -> ["key","value","list"...]
operator -> ["=",">","<",">=","<=","<>","!=","in","not in",...]

block -> single command or:

BEGIN
   command
   command
   command
   ...
END

BEGINPROCEDURE proc_name args
ENDPROCEDURE

CALL proc_name args

====================
Example 1:

IF key mykey1 = value "xx"
THEN
BEGIN
   SET mykey2 "yy"
   INCR mykey3
END
ELSE
BEGIN
   SET mykey2 "zz"
   DECR mykey3
END

====================
Example 2:

BEGINPROCEDURE myswap key1 key2
   SET myswap_temp key1
   SET key1 key2
   SET key2 myswap_temp
   INCR myswap_cnt
ENDPROCEDURE

CALL myswap mykey1 mykey2
CALL myswap mykey2 mykey3

==============================

REDIS as a virtual machine - wow!