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<meta name="author" content="Maxim Sokhatsky" /><title>MAD</title>
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    <h1>MAD</h1>
</header><main>
    <section>

<h3>INTRO</h3>

   <p>MAD module provides user level interface for console commands.</p>

        <p></p><blockquote><p></p><ul><li><b><a href="#main">main/1</a></b> — IO parameters.</li><li><b><a href="#help">help/0</a></b> — Display help.</li><li><b><a href="#profile">profile/0</a></b> — Current MAD profile.</li><li><b><a href="#atomize">atomize/1</a></b> — Commands mappings.</li></ul></blockquote>

    </section>
    <section>

<h3>PROFILE</h3>

<p>Each MAD profile must imeplent exposed API:</p>

    <figure><code>
 -define(MAD,[compile/1,app/1,get/1,release/1,resolve/1,clean/1,
              start/1,attach/1,stop/1,sh/1,deps/1,up/1,fetch/1,
              static/1,eunit/1,strip/1]).
    </code></figure>

    <figure><code>
 -type return() :: [] | {ok,any()} | {error,any()}.
    </code></figure>

    <p>Each function from exposed API has same signature from list of string
       to sum of nil and error protocols.</p>

<h4>compile(list(string())) -> return().</h4>
<h4>app(list(string())) -> return().</h4>
<h4>get(list(string())) -> return().</h4>
<h4>release(list(string())) -> return().</h4>
<h4>clean(list(string())) -> return().</h4>
<h4>start(list(string())) -> return().</h4>
<h4>stop(list(string())) -> return().</h4>
<h4>sh(list(string())) -> return().</h4>
<h4>deps(list(string())) -> return().</h4>
<h4>up(list(string())) -> return().</h4>
<h4>sh(list(string())) -> return().</h4>
<h4>fetch(list(string())) -> return().</h4>
<h4>static(list(string())) -> return().</h4>
<h4>eunit(list(string())) -> return().</h4>
<h4>strip(list(string())) -> return().</h4>

    </section>
    <section>
        <h3>LOOP</h3>
        <h4>main(list(string())) -> integer().</h4>
        <p>Simple yet understandable command processing and error loop.
           Function <b>atomize/1</b> helps to accumulate
           known arguments as atoms. Function <b>profile/0</b>
           retrieves module with MAD API implementation.
           <b>main/1</b> function returns error status to OS with halt.</p>
        <figure><code>
 main(Params) ->

   { _Invalid, Valid } = lists:foldr(
     fun (X,{C,R}) when is_atom(X) -> {[],[{X,C}|R]};
                         (X,{C,R}) -> {[X|C],R}
     end, {[],[]}, lists:map(fun atomize/1, Params)),

   halt(return(
     lists:any(fun({error,X}) -> mad:info("~s~n",[X]), true;
                          (_) -> false end,
     lists:flatten([
     lists:foldl(
     fun ({Fun,Arg},ErrAcc) ->
         mad_hooks:run_hooks(pre, Fun),
         Errors = errors((profile()):Fun(Arg)),
         mad_hooks:run_hooks(post, Fun),
         Errors ++ ErrAcc
     end, [], Valid)])))).
        </code></figure>
    </section>
    <section>

<p>This module may refer to:
<a href="mad_local.htm"><b>mad_local</b></a>.
</p>

    </section>
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