edoc_layout.erl

来自「OTP是开放电信平台的简称」· ERL 代码 · 共 851 行 · 第 1/2 页

%% <!ELEMENT typedecl (typedef, description?)>
%% <!ELEMENT typedef (erlangName, argtypes, type?, localdef*)>

types([]) -> [];
types(Ts) ->
    Es = lists:flatmap(fun ({Name, E}) -> typedecl(Name, E) end, Ts),
    [?NL,
     {h2, [{a, [{name, ?DATA_TYPES_LABEL}],
	    [?DATA_TYPES_TITLE]}]},
     ?NL | Es].

typedecl(Name, E=#xmlElement{content = Es}) ->
    ([?NL, {h3, [{class, "typedecl"}], label_anchor([Name, "()"], E)}, ?NL]
     ++ [{p, typedef(get_content(typedef, Es))}, ?NL]
     ++ fulldesc(Es)).

type_name(#xmlElement{content = Es}) ->
    t_name(get_elem(erlangName, get_content(typedef, Es))).

typedef(Es) ->
    Name = ([t_name(get_elem(erlangName, Es)), "("]
  	    ++ seq(fun t_utype_elem/1, get_content(argtypes, Es), [")"])),
    (case get_elem(type, Es) of
 	 [] -> [{b, ["abstract datatype"]}, ": ", {tt, Name}];
 	 Type ->
	     [{tt, Name ++ [" = "] ++ t_utype(Type)}]
     end
     ++ local_defs(get_elem(localdef, Es))).

local_defs([]) -> [];
local_defs(Es) ->
    [?NL,
     {ul, [{class, "definitions"}],
      lists:concat([[{li, [{tt, localdef(E)}]}, ?NL] || E <- Es])}].

localdef(E = #xmlElement{content = Es}) ->
    (case get_elem(typevar, Es) of
	 [] -> 
	     label_anchor(t_abstype(get_content(abstype, Es)), E);
	 [V] ->
	     t_var(V)
     end
     ++ [" = "] ++ t_utype(get_elem(type, Es))).

fulldesc(Es) ->
    case get_content(fullDescription, get_content(description, Es)) of
	[] -> [?NL];
	Desc -> [{p, Desc}, ?NL]
    end.

sees(Es) ->
    case get_elem(see, Es) of
	[] -> [];
	Es1 ->
	    [{p, [{b, ["See also:"]}, " "] ++ seq(fun see/1, Es1, ["."])},
	     ?NL]
    end.

see(E=#xmlElement{content = Es}) ->
    see(E, Es).

see(E, Es) ->
    case href(E) of
	[] -> Es;
	Ref ->
	    [{a, Ref, Es}]
    end.

href(E) ->
    case get_attrval(href, E) of
	"" -> [];
	URI ->
	    T = case get_attrval(target, E) of
		    "" -> [];
		    S -> [{target, S}]
		end,
	    [{href, URI} | T]
    end.

equiv_p(Es) ->
    equiv(Es, true).

equiv(Es) ->
    equiv(Es, false).

equiv(Es, P) ->
    case get_content(equiv, Es) of
	[] -> [];
	Es1 ->
	    case get_content(expr, Es1) of
		[] -> [];
		[Expr] ->
		    Expr1 = [{tt, [Expr]}],
		    Expr2 = case get_elem(see, Es1) of
				[] ->
				    Expr1;
				[E=#xmlElement{}] ->
				    see(E, Expr1)
			    end,
		    Txt = ["Equivalent to "] ++ Expr2 ++ ["."],
		    (case P of
			 true -> [{p, Txt}];
			 false -> Txt
		     end
		     ++ [?NL])
	    end
    end.

copyright(Es) ->
    case get_content(copyright, Es) of
	[] -> [];
	Es1 ->
	    [{p, ["Copyright \251 " | Es1]}, ?NL]
    end.

version(Es) ->
    case get_content(version, Es) of
	[] -> [];
	Es1 ->
	    [{p, [{b, ["Version:"]}, " " | Es1]}, ?NL]
    end.

since(Es) ->
    case get_content(since, Es) of
	[] -> [];
	Es1 ->
	    [{p, [{b, ["Introduced in:"]}, " " | Es1]}, ?NL]
    end.

deprecated(Es, S) ->
    Es1 = get_content(description, get_content(deprecated, Es)),
    case get_content(fullDescription, Es1) of
	[] -> [];
	Es2 ->
	    [{p, [{b, ["This " ++ S ++ " is deprecated:"]}, " " | Es2]},
	     ?NL]
    end.

behaviours(Es, Name) ->
    (case get_elem(behaviour, Es) of
	 [] -> [];
	 Es1 ->
	     [{p, ([{b, ["Behaviours:"]}, " "]
		   ++ seq(fun behaviour/1, Es1, ["."]))},
	      ?NL]
     end
     ++
     case get_content(callbacks, Es) of
	 [] -> [];
	 Es1 ->
	     [{p, ([{b, ["This module defines the ", {tt, [Name]},
			 " behaviour."]},
		    br, " Required callback functions: "]
		   ++ seq(fun callback/1, Es1, ["."]))},
	      ?NL]
     end).

behaviour(E=#xmlElement{content = Es}) ->
    see(E, [{tt, Es}]).

callback(E=#xmlElement{}) ->
    Name = get_attrval(name, E),
    Arity = get_attrval(arity, E),
    [{tt, [Name, "/", Arity]}].

authors(Es) ->
    case get_elem(author, Es) of
	[] -> [];
	Es1 ->
	    [{p, [{b, ["Authors:"]}, " "] ++ seq(fun author/1, Es1, ["."])},
	     ?NL]
    end.

atom(String) ->
    io_lib:write_atom(list_to_atom(String)).

%% <!ATTLIST author
%%   name CDATA #REQUIRED
%%   email CDATA #IMPLIED
%%   website CDATA #IMPLIED>

author(E=#xmlElement{}) ->
    Name = get_attrval(name, E),
    Mail = get_attrval(email, E),
    URI = get_attrval(website, E),
    (if Name == Mail ->
	     [{a, [{href, "mailto:" ++ Mail}],[{tt, [Mail]}]}];
	true ->
	     if Mail == "" -> [Name];
		true -> [Name, " (", {a, [{href, "mailto:" ++ Mail}],
				      [{tt, [Mail]}]}, ")"]
	     end
     end
     ++ if URI == "" ->
		[];
	   true ->
		[" [", {em, ["web site:"]}, " ",
		 {tt, [{a, [{href, URI}, {target, "_top"}], [URI]}]},
		 "]"]
	end).

references(Es) ->
    case get_elem(reference, Es) of
	[] -> [];
	Es1 ->
	    [{p, [{b, ["References"]},
		  {ul, [{li, C} || #xmlElement{content = C} <- Es1]}]},
	     ?NL]
    end.

todos(Es) ->
    case get_elem(todo, Es) of
	[] -> [];
	Es1 ->
	    Todos = [{li, [{font, [{color,red}], C}]}
		     || #xmlElement{content = C} <- Es1],
	    [{p, [{b, [{font, [{color,red}], ["To do"]}]},
		  {ul, Todos}]},
	     ?NL]
    end.

t_name([E]) ->
    N = get_attrval(name, E),
    case get_attrval(module, E) of
	"" -> atom(N);
	M ->
	    S = atom(M) ++ ":" ++ atom(N),
	    case get_attrval(app, E) of
		"" -> S;
		A -> "//" ++ atom(A) ++ "/" ++ S
	    end
    end.

t_utype([E]) ->
    t_utype_elem(E).

t_utype_elem(E=#xmlElement{content = Es}) ->
    case get_attrval(name, E) of
	"" -> t_type(Es);
	Name ->
	    T = t_type(Es),
	    case T of
		[Name] -> T;    % avoid generating "Foo::Foo"
		T -> [Name] ++ ["::"] ++ T
	    end
    end.

t_type([E=#xmlElement{name = typevar}]) ->
    t_var(E);
t_type([E=#xmlElement{name = atom}]) ->
    t_atom(E);
t_type([E=#xmlElement{name = integer}]) ->
    t_integer(E);
t_type([E=#xmlElement{name = float}]) ->
    t_float(E);
t_type([#xmlElement{name = nil}]) ->
    t_nil();
t_type([#xmlElement{name = list, content = Es}]) ->
    t_list(Es);
t_type([#xmlElement{name = tuple, content = Es}]) ->
    t_tuple(Es);
t_type([#xmlElement{name = 'fun', content = Es}]) ->
    t_fun(Es);
t_type([#xmlElement{name = record, content = Es}]) ->
    t_record(Es);
t_type([E = #xmlElement{name = abstype, content = Es}]) ->
    T = t_abstype(Es),
    see(E, T);
t_type([#xmlElement{name = union, content = Es}]) ->
    t_union(Es).

t_var(E) ->
    [get_attrval(name, E)].

t_atom(E) ->
    [get_attrval(value, E)].

t_integer(E) ->
    [get_attrval(value, E)].

t_float(E) ->
    [get_attrval(value, E)].

t_nil() ->
    ["[]"].

t_list(Es) ->
    ["["] ++ t_utype(get_elem(type, Es)) ++ ["]"].

t_tuple(Es) ->
    ["{"] ++ seq(fun t_utype_elem/1, Es, ["}"]).

t_fun(Es) ->
    ["("] ++ seq(fun t_utype_elem/1, get_content(argtypes, Es),
		 [") -> "] ++ t_utype(get_elem(type, Es))).

t_record(Es) ->
    ["#"] ++ t_type(get_elem(atom, Es)) ++ ["{"]
	++ seq(fun t_field/1, get_elem(field, Es), ["}"]).

t_field(#xmlElement{content = Es}) ->
    t_type(get_elem(atom, Es)) ++ [" = "] ++ t_utype(get_elem(type, Es)).

t_abstype(Es) ->
    ([t_name(get_elem(erlangName, Es)), "("]
     ++ seq(fun t_utype_elem/1, get_elem(type, Es), [")"])).

t_union(Es) ->
    seq(fun t_utype_elem/1, Es, " | ", []).

seq(F, Es) ->
    seq(F, Es, []).

seq(F, Es, Tail) ->
    seq(F, Es, ", ", Tail).

seq(F, [E], _Sep, Tail) ->
    F(E) ++ Tail;
seq(F, [E | Es], Sep, Tail) ->
    F(E) ++ [Sep] ++ seq(F, Es, Sep, Tail);
seq(_F, [], _Sep, Tail) ->
    Tail.

get_elem(Name, [#xmlElement{name = Name} = E | Es]) ->
    [E | get_elem(Name, Es)];
get_elem(Name, [_ | Es]) ->
    get_elem(Name, Es);
get_elem(_, []) ->
    [].

get_attr(Name, [#xmlAttribute{name = Name} = A | As]) ->
    [A | get_attr(Name, As)];
get_attr(Name, [_ | As]) ->
    get_attr(Name, As);
get_attr(_, []) ->
    [].

get_attrval(Name, #xmlElement{attributes = As}) ->
    case get_attr(Name, As) of
	[#xmlAttribute{value = V}] ->
	    V;
	[] -> ""
    end.

get_content(Name, Es) ->
    case get_elem(Name, Es) of
	[#xmlElement{content = Es1}] ->
	    Es1;
	[] -> []
    end.

get_text(Name, Es) ->
    case get_content(Name, Es) of
	[#xmlText{value = Text}] ->
	    Text;
	[] -> ""
    end.

local_label(R) ->
    "#" ++ R.

xhtml(Title, CSS, Body) ->
    [{html, [?NL,
	    {head, [?NL,
		    {title, [Title]},
		    ?NL] ++ CSS},
	    ?NL,
	    {body, [{bgcolor, "white"}], Body},
	    ?NL]
     },
     ?NL].

%% ---------------------------------------------------------------------

type(E) ->
    type(E, []).

type(E, Ds) ->
    xmerl:export_simple_content(t_utype_elem(E) ++ local_defs(Ds),
				?HTML_EXPORT).

package(E=#xmlElement{name = package, content = Es}, Options) ->
    Opts = init_opts(E, Options),
    Name = get_text(packageName, Es),
    Title = io_lib:fwrite("Package ~s", [Name]),
    Desc = get_content(description, Es),
%    ShortDesc = get_content(briefDescription, Desc),
    FullDesc = get_content(fullDescription, Desc),
    Body = ([?NL, {h1, [Title]}, ?NL]
%	    ++ ShortDesc
	    ++ copyright(Es)
	    ++ deprecated(Es, "package")
	    ++ version(Es)
	    ++ since(Es)
	    ++ authors(Es)
	    ++ references(Es)
	    ++ sees(Es)
	    ++ todos(Es)
	    ++ FullDesc),
    XML = xhtml(Title, stylesheet(Opts), Body),
    xmerl:export_simple(XML, ?HTML_EXPORT, []).

overview(E=#xmlElement{name = overview, content = Es}, Options) ->
    Opts = init_opts(E, Options),
    Title = get_text(title, Es),
    Desc = get_content(description, Es),
%    ShortDesc = get_content(briefDescription, Desc),
    FullDesc = get_content(fullDescription, Desc),
    Body = (navigation("top")
	    ++ [?NL, {h1, [Title]}, ?NL]
%	    ++ ShortDesc
	    ++ copyright(Es)
	    ++ version(Es)
	    ++ since(Es)
	    ++ authors(Es)
	    ++ references(Es)
	    ++ sees(Es)
	    ++ todos(Es)
	    ++ FullDesc
	    ++ [?NL, hr]
	    ++ navigation("bottom")
	    ++ timestamp()),
    XML = xhtml(Title, stylesheet(Opts), Body),
    xmerl:export_simple(XML, ?HTML_EXPORT, []).