%%%----------------------------------------------------------------------
%%% File : translate.erl
%%% Author : Alexey Shchepin <alexey@process-one.net>
%%% Purpose : Localization helper
%%% Created : 6 Jan 2003 by Alexey Shchepin <alexey@process-one.net>
%%%
%%%
%%% ejabberd, Copyright (C) 2002-2010 ProcessOne
%%%
%%% This program is free software; you can redistribute it and/or
%%% modify it under the terms of the GNU General Public License as
%%% published by the Free Software Foundation; either version 2 of the
%%% License, or (at your option) any later version.
%%%
%%% This program is distributed in the hope that it will be useful,
%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
%%% General Public License for more details.
%%%
%%% You should have received a copy of the GNU General Public License
%%% along with this program; if not, write to the Free Software
%%% Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
%%% 02111-1307 USA
%%%
%%%----------------------------------------------------------------------
-module(translate).
-author('alexey@process-one.net').
-export([start/0,
load_dir/1,
load_file/2,
translate/2]).
-include("ejabberd.hrl").
start() ->
ets:new(translations, [named_table, public]),
Dir =
case os:getenv("EJABBERD_MSGS_PATH") of
false ->
case code:priv_dir(ejabberd) of
{error, _} ->
?MSGS_DIR;
Path ->
filename:join([Path, "msgs"])
end;
Path ->
Path
end,
load_dir(Dir),
ok.
load_dir(Dir) ->
case file:list_dir(Dir) of
{ok, Files} ->
MsgFiles = lists:filter(
fun(FN) ->
case string:len(FN) > 4 of
true ->
string:substr(
FN,
string:len(FN) - 3) == ".msg";
_ ->
false
end
end, Files),
lists:foreach(
fun(FN) ->
LP = ascii_tolower(
string:substr(FN, 1, string:len(FN) - 4)),
L = case string:tokens(LP, ".") of
[Language] -> Language;
[Language, _Project] -> Language
end,
load_file(L, Dir ++ "/" ++ FN)
end, MsgFiles),
ok;
{error, Reason} ->
?ERROR_MSG("~p", [Reason])
end.
load_file(Lang, File) ->
case file:consult(File) of
{ok, Terms} ->
lists:foreach(fun({Orig, Trans}) ->
Trans1 = case Trans of
"" ->
Orig;
_ ->
Trans
end,
ets:insert(translations,
{{Lang, Orig}, Trans1})
end, Terms);
%% Code copied from ejabberd_config.erl
{error, {_LineNumber, erl_parse, _ParseMessage} = Reason} ->
ExitText = lists:flatten(File ++ " approximately in the line "
++ file:format_error(Reason)),
?ERROR_MSG("Problem loading translation file ~n~s", [ExitText]),
exit(ExitText);
{error, Reason} ->
ExitText = lists:flatten(File ++ ": " ++ file:format_error(Reason)),
?ERROR_MSG("Problem loading translation file ~n~s", [ExitText]),
exit(ExitText)
end.
translate(Lang, Msg) ->
LLang = ascii_tolower(Lang),
case ets:lookup(translations, {LLang, Msg}) of
[{_, Trans}] ->
Trans;
_ ->
ShortLang = case string:tokens(LLang, "-") of
[] ->
LLang;
[SL | _] ->
SL
end,
case ShortLang of
"en" ->
Msg;
LLang ->
translate(Msg);
_ ->
case ets:lookup(translations, {ShortLang, Msg}) of
[{_, Trans}] ->
Trans;
_ ->
translate(Msg)
end
end
end.
translate(Msg) ->
case ?MYLANG of
undefined ->
Msg;
"en" ->
Msg;
Lang ->
LLang = ascii_tolower(Lang),
case ets:lookup(translations, {LLang, Msg}) of
[{_, Trans}] ->
Trans;
_ ->
ShortLang = case string:tokens(LLang, "-") of
[] ->
LLang;
[SL | _] ->
SL
end,
case ShortLang of
"en" ->
Msg;
Lang ->
Msg;
_ ->
case ets:lookup(translations, {ShortLang, Msg}) of
[{_, Trans}] ->
Trans;
_ ->
Msg
end
end
end
end.
ascii_tolower([C | Cs]) when C >= $A, C =< $Z ->
[C + ($a - $A) | ascii_tolower(Cs)];
ascii_tolower([C | Cs]) ->
[C | ascii_tolower(Cs)];
ascii_tolower([]) ->
[].
