Start -> Start Start 
Start -> if Podminka { Prikaz } | if Podminka { Prikaz } Konec_podminky | Prikaz 

Konec_podminky -> else if Podminka { Prikaz } Konec_podminky
Konec_podminky -> else Podminka { Prikaz }

Podminka -> Promenna Operator Retezec | (Promenna Operator Retezec) | Promenna Operator Retezec Bool_spojka Podminka| (Promenna Operator Retezec) Bool_spojka Podminka| ! Podminka 

Bool_spojka -> | | & | ^

Promenna -> $X
Retezec -> T | R
T -> "Y" | 'Z' | N
N -> //jakekoliv cislo
X -> [A-Za-Z0-9_-]+
Y -> //cokoliv s escapovanymi uvozovkami 
Z -> //cokoliv s escapovanymi apostrofy
A -> // cokoliv s escapovanymi lomitky
R -> /A/

Retezec -> Retezec.Retezec | Promenna.Retezec | Retezec.Promenna | Promenna | Promenna.Promenna

Operator -> == | === | != | !== | <= | >= | < | > | ~~ | !~ | ~~~ | !~~

Prikaz -> PrikazPrikaz 
Prikaz -> Prirazeni | Akce 
Prirazeni -> Promenna = Retezec | Promenna = Akce 
Akce -> Co -> Jak Retezec 
Co -> copy | _
Jak -> pipe | mail | _

--
promenna: $[A-Za-Z0-9_-]+
string: "[^\n]*" | '[^\n]*' | cislo
klicove slovo
whitespace
whitespace s novym radkem
operator
leva zavorka
prava zavorka
leva slozena zavorka
prava slozena zavorka
sipka
EOF