The second project involves modifying the syntactic analyzer for the

sattached compiler by

adding to the existing grammar. The full grammar of the language is shown below. The

highlighted portions of the grammar show what you must either modify or add to the existing

grammar.

function:

function$\_$header $\{$variable$\}$ body

function$\_$header:

FUNCTI$$N IDENTIFIER RETURNS type;

variable:

IDENTIFIER : type IS statement ; $$

IDENTIFIER : LIST OF type IS list ;

list:

$($ expression $\{,$ expression $\})$

parameters:

parameter $\{,$ parameter $\}$

parameter:

IDENTIFIER : type

type:

INTEGER $|$ REAL $|$ CHARACTER

body:

BEGIN statement END;

statement:

expression ; $|$

WHEN condition, expression : expression ; $$

SWITCH expression IS $\{$case$\}$ OTHERS ARROW statement ENDSWITCH ; $$

IF condition THEN statement $\{$ELSIF condition THEN statement$\}$

ELSE statement ENDIF ; $$

FOLD direction operator list$\_$choice ENDFOLD ;

case:

CASE INT$\_$LITERAL ARROW statement

direction:

LEFT $|$ RIGHT

operator:

ADDOP $|$ MULOP

list choice:

list $|$

IDENTIFIER

condition: