%% This is taken from the code of distel.
-module(fun_app).
-export([html_index/2]). % , lines/3, curry/2]).
html_index(file,Dir) ->
fold_file(curry(fun lines/3,Dir),[],filename:join([Dir,"doc","man_index.html"])).
fold_file(Fun,Acc0,File) ->
{ok, FD} = file:open(File, [read]),
Acc = fold_file_lines(FD,Fun,Acc0),
file:close(FD),
Acc.
fold_file_lines(FD,Fun,Acc) ->
case io:get_line(FD, "") of
eof -> Acc;
Line -> fold_file_lines(FD,Fun,Fun(trim_nl(Line),Acc))
end.
trim_nl(Str) -> lists:reverse(tl(lists:reverse(Str))).
lines(Line,_,Dir) ->
case string:tokens(Line, "<> \"") of
["TD", "A", "HREF=", "../"++Href, M|_] ->
case filename:basename(Href, ".html") of
"index" -> ok;
M -> e_set({file,M}, filename:join([Dir,Href]))
end;
_ -> ok
end.
e_set(Key,Val) -> ets:insert(?MODULE, {Key,Val}).
curry(F, Arg) ->
case erlang:fun_info(F,arity) of
{_,1} -> fun() -> F(Arg) end;
{_,2} -> fun(A) -> F(A,Arg) end;
{_,3} -> fun(A,B) -> F(A,B,Arg) end;
{_,4} -> fun(A,B,C) -> F(A,B,C,Arg) end
end.
