SE250:lab-9:mabd065

Lab 9 Report

I started by looking at all the options. I had no clue on what to do, so i picked option II randomly!

The first problem was the disk space that was running out on a machine. So i had to switch between different

machines until i finally settled down on one!

After downloading the files, I had to use *.c in the compiling statement to be able to compile the whole code.

It compiles fine but doesn't run. After asking, i have been told that i need to implement 2 functions:

- Tree* Stmt( TokenStream* tokens AND - Tree* StmtSeq( TokenStream* tokens )

before i can run the code. So that is what i am going to spend what is left from my time doing.

For the first function, i came up with the following:

code:

Tree* Stmt( TokenStream* tokens ) {
    //Tree* t = Exp( tokens );
    Token text = current();

    if (!end_of_tokens) {
    
	if (eqToken(text, TOK_IF)) {
	    advance( tokens );

	    if (eqToken(text, Exp(tokens, P(tokens)) )) {
		advance( tokens );

		if (eqToken(text, TOK_THEN)) {
		    advance( tokens );

		    if (eqToken, Stmt(tokens) ) {
			advance( tokens );
			// Build the tree
		    }
		}
	    }
    
	} elseif (eqToken(text, TOK_WHILE)) {

	} elseif (eqToken(text, TOK_OPENBRACE)) {
	    
	} elseif (isVariable(text)) {

	} elseif (eqToken(text,  TOK_SKIP)) {

	} elseif (eqToken(text,  TOK_PRINT)) {

	}
    }
     
}

Not sure if it is write. It is not complete but at least it shows the start.