eval: ${eval:08}
eval10: ${eval10:077}
eval10: ${eval10:08}
+eval10: ${eval10:0x1234}
+eval: ${eval:2+42%5}
+eval: ${eval:0xc&5}
+eval: ${eval:0xc & 5 }
+eval: ${eval:0x0c|5}
+eval: ${eval:0xc^5}
+eval: ${eval:0xc>>1}
+eval: ${eval:0xc >> 2}
+eval: ${eval:0xc >> 4 }
+eval: ${eval:0xc<<1}
+eval: ${eval:~255&0x1234}
+eval: ${eval:~ 255&0x1234}
+eval: ${eval: -(~255&0x1234)}
+
expand: \$primary_hostname ${expand:\$primary_hostname}
hash: ${hash_3:monty} ${hash_5:monty} ${hash_4_62:monty python}
hash: ${hash_3:abc}X ${hash_3:ab}X ${hash_3:a}X ${hash_3:}X
5>3z: ${if >{5 } {3z }{y}{n}}
5>a: ${if >{ 5 } {a}{y}{n}}
+>0: ${if > {}{0}{y}{n}}
+=: ${if = {}{}{y}{n}}
+-2<: ${if < {-2}{}{y}{n}}
+08>07: ${if > {08}{07}{y}{n}}
+011=11: ${if = {011}{11}{y}{n}}
+
def:y ${if def:tod_log{y}{n}}
def:n ${if def:host{y}{n}}
def:f ${if def:post{y}{n}}