int decision_stat()
{
if(strcmp(token.c_str(),"if") == 0)
{
getToken("decision_stat");
if(strcmp(token.c_str(),"(") == 0)
{
getToken("decision_stat");
expr();
if(strcmp(token.c_str(),")") == 0)
{
getToken("decision_stat");
if(strcmp(token.c_str(),"{") == 0)
{
getToken("decision_stat");
statement_list();
if(strcmp(token.c_str(),"}") == 0)
{
getToken("decision_stat");
dprime();
return 1;
}
else
{
printf("Error at }\n");
exit(1);
}
}
else
{
printf("Error at {\n");
exit(1);
}
}
else
{
printf("Error at )\n");
exit(1);
}
}
else
{
printf("Error at (\n");
exit(1);
}
}
else
return 0;
}
int decstat()
{
if(T[nt++].t==13)
{
stmtflag[no]=1;
if(T[nt++].t==20)
{
if(expn())
{
if(T[nt++].t==21)
{
if(stmt())
{
if(dprime())
return 1;
else
return 0;
}
else
return 0;
}
else
{
strcpy(miss,")");
return 0;
}
}
else
return 0;
}
else
{
strcpy(miss,"(");
return 0;
}
}
else
{
nt--;
return 0;
}
}
