Baklava in Erlang

Welcome to the Baklava in Erlang page! Here, you'll find the source code for this program as well as a description of how the program works.

Current Solution

-module(baklava).
-export([main/1]).

-spec baklava(MaxWidth :: integer(),
              Incrementor :: integer()) -> ok.
%%--------------------------------------------------------------------
%% Recursively prints the top half of the baklava 
%%--------------------------------------------------------------------
baklava(MaxWidth, MaxWidth) ->
    print((MaxWidth*2)+1, star),
    reverse_baklava(MaxWidth, MaxWidth-1);
baklava(MaxWidth, Incrementor) ->
    print(MaxWidth-Incrementor, space),
    print((Incrementor*2)+1, star),
    baklava(MaxWidth, Incrementor+1).

-spec reverse_baklava(MaxWidth :: integer(),
                      Decrementor :: integer()) -> ok.
%%--------------------------------------------------------------------
%% Recursively prints the bottom half of the baklava
%%--------------------------------------------------------------------
reverse_baklava(MaxWidth, 0) ->
    print(MaxWidth, space),
    print(1, star);
reverse_baklava(MaxWidth, Decrementor) ->
    print(MaxWidth-Decrementor, space),
    print((Decrementor*2)+1, star),
    reverse_baklava(MaxWidth, Decrementor-1).

-spec print(Number :: integer(),
            Type :: star | space) -> ok.
%%--------------------------------------------------------------------
%% Recursively prints the specified Number of stars or spaces
%%--------------------------------------------------------------------
main(_) ->
    baklava(10, 0).

print(0,star) ->
    io:format("~n");
print(0,_) ->
    ok;
print(N, space) ->
    io:format(" "),
    print(N-1, space);
print(N, star) ->
    io:format("*"),
    print(N-1, star).

Baklava in Erlang was written by:

• Mark Magahis
• rzuckerm

If you see anything you'd like to change or update, please consider contributing.

How to Implement the Solution

No 'How to Implement the Solution' section available. Please consider contributing.

How to Run the Solution

No 'How to Run the Solution' section available. Please consider contributing.