Support for single stats if/else, loops and functions

[shobhit10058]

concerns issue #27
The changes are highlighted here #404 . This contains the same code as that branch just the name is changed.

[Math-O5]

@shobhit10058 Tests passed.

[Math-O5]

@shobhit10058 It's a bit complex understand what you did. This variable func_st and it's comments is not very clear what is happing. May you think in another name? Like func_scope, and instead sum += on it, would be nice if you declare some constant right before while loop as bellow:

    # Function not called
    NO_FUNC_CALLED = -1

    # Function start body
    START_FUNCTION = 0

    # Function end body 
    END_FUNCTION = 1 

Now, one suggestion of comment of func_st is Flag which mark scope of functions without braces.

Plus, remember resolve the conflict with master, then I can merge it!

Tnx by the PR.

[shobhit10058]

So, I have to change the name of func_st. I thought It as a flag for a start of function with a single statement i.e one who's body is used without the braces.

[shobhit10058]

Ok, I understood what you are saying. I will update the PR.
So, I have to change the name of the flag
I have to give names to the constants -1,0 and 1.

[shobhit10058]

now the unmatched braces one is not working it will give error. Rest all are working.

[Math-O5]

@shobhit10058 Well done!

[Math-O5]

@shobhit10058 Well done!