/* FIRST(additive arithmetic expression’)={+,-, e}
<additive arithmetic expression’> ->
+ <multiplicative arithmetic expression> <additive arithmetic expression’>
| - <multiplicative arithmetic expression> <additive arithmetic expression’>
| e
Author: Kyle Hinskens */
void additive_arithmetic_expression_p(void){
switch(lookahead_token.code){
case ART_OP_T:
switch (lookahead_token.attribute.arr_op){
case PLUS:
match(ART_OP_T,PLUS);
multiplicative_arithmetic_expression();
additive_arithmetic_expression_p();
gen_incode("Additive arithmetic expression parsed");
break;
case MINUS:
match(ART_OP_T,MINUS);
multiplicative_arithmetic_expression();
additive_arithmetic_expression_p();
gen_incode("Additive arithmetic expression parsed");
break;
}
break;
}
}
/* FIRST(additive arithmetic expression)={AVID_T, FPL_T,INL_T ,(}
<additive arithmetic expression> ->
<multiplicative arithmetic expression> <additive arithmetic expression’>
Author: Kwok Hong Kelvin Chan */
void additive_arithmetic_expression(void){
switch(lookahead_token.code){
case AVID_T:
case FPL_T:
case INL_T:
case LPR_T:
multiplicative_arithmetic_expression();
additive_arithmetic_expression_p();
break;
}
}
/*
* Production: Additive Arithmetic Expression (P)
* FIRST set: { +, -, e }
*/
void additive_arithmetic_expression_p(void) {
switch (lookahead.code) {
case ART_OP_T:
switch (lookahead.attribute.arr_op) {
/* The attribute must be MINUS or PLUS. */
case MINUS:
case PLUS:
match(ART_OP_T, lookahead.attribute.arr_op);
multiplicative_arithmetic_expression();
additive_arithmetic_expression_p();
gen_incode("PLATY: Additive arithmetic expression parsed");
return;
default:
return;
}
return;
default:
return;
}
}
/*
* Production: Additive Arithmetic Expression
* FIRST set: { AVID_T, FPL_T, INL_T, ( }
*/
void additive_arithmetic_expression(void) {
multiplicative_arithmetic_expression();
additive_arithmetic_expression_p();
}
