Bubble Sort in Erlang

Welcome to the Bubble Sort 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(bubble_sort).
-export([start/0, start/1]).

%% Compile with:   erlc bubble_sort.erl
%% Run with:       erl -noshell -run bubble_sort start <INPUT> -s init stop

start() ->
    io:format("Usage: please provide a list of at least two integers to sort in the format \"1, 2, 3, 4, 5\"~n").
start([""]) ->
    io:format("Usage: please provide a list of at least two integers to sort in the format \"1, 2, 3, 4, 5\"~n");
start([InputString]) ->
    case handle_input(InputString) of
        invalid_input ->
            io:format("Usage: please provide a list of at least two integers to sort in the format \"1, 2, 3, 4, 5\"~n");
        NumList ->
            Result = bubble_sort(NumList),
            handle_output(Result)
    end.


bubble_sort(List) -> bubble_sort(List, [], false).

bubble_sort([A, B | T], Acc, _) when A > B ->
    bubble_sort([A | T], [B | Acc], true);
bubble_sort([A, B | T], Acc, Tainted) ->
    bubble_sort([B | T], [A | Acc], Tainted);
bubble_sort([A | T], Acc, Tainted) ->
    bubble_sort(T, [A | Acc], Tainted);
bubble_sort([], Acc, true) ->
    bubble_sort(lists:reverse(Acc));
bubble_sort([], Acc, false) ->
    lists:reverse(Acc).


handle_input(InputString) ->    
    case binary:split(list_to_binary([C || C <- InputString, C =/= $ ]), <<",">>, [global, trim_all]) of 
        [] ->
            invalid_input;
        [_] ->
            invalid_input;
        BinaryNums ->
            [binary_to_integer(Bin) || Bin <- BinaryNums]
    end.


handle_output([Num]) ->
    io:format("~p~n", [Num]);
handle_output([Num|NumList]) ->
    io:format("~p, ", [Num]),
    handle_output(NumList).

Bubble Sort in Erlang was written by:

• Jacky Hui

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

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