grammar.txt

TODO:		function	: function IDENTIFIER L_PAREN variable?, ... R_PAREN T_COLLON statements endfunction

append		: append T_L_PAREN collection T_COMMA expr T_R_PAREN
count		: count T_L_PAREN collection T_R_PAREN
print       : print string
print       : print expr
loop        : loop variable SEMICOLON cond SEMICOLON expr COLON body ENDLOOP
            : loop variable SEMICOLON expr COLON body ENDLOOP
            : loop expr COLON body ENDLOOP
while       : while cond body endwhile
if          : if cond COLON body ENDIF
body        : statements
statement   : variable|if|expr
variable    : declare IDENTIFIER EQ expr
            : IDENTIFIER EQ expr
            : declare IDENTIFIER
collection  : l_bracket object T_COMMA object T_COMMA ... r_bracket
cond        : expr
expr	    : declare IDENTIFIER EQ expr
            : comp-expr (and|or) comp-expr
comp-expr   : arith-expr (and|or) arith-expr
arith-expr  : expr (>|<|>=|<=|==) expr
            : term (PLUS|MINUS) term
term	    : factor (MUL|DIV) factor
factor	    : INT|FLOAT
power	    : factor ^ factor
l_bracket   : [
r_bracket   : ]
object      : any data structure