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5afe7cfafb
* contrib/extract_translations/extract_translations.erl: Likewise * contrib/extract_translations/prepare-translation.sh: Likewise SVN Revision: 2044
295 lines
7.4 KiB
Erlang
295 lines
7.4 KiB
Erlang
%%%----------------------------------------------------------------------
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%%% File : extract_translations.erl
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%%% Author : Sergei Golovan <sgolovan@nes.ru>
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%%% Purpose : Auxiliary tool for interface/messages translators
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%%% Created : 23 Apr 2005 by Sergei Golovan <sgolovan@nes.ru>
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%%% Id : $Id$
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%%%----------------------------------------------------------------------
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-module(extract_translations).
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-author('sgolovan@nes.ru').
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-export([start/0]).
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-define(STATUS_SUCCESS, 0).
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-define(STATUS_ERROR, 1).
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-define(STATUS_USAGE, 2).
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-include_lib("kernel/include/file.hrl").
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start() ->
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ets:new(translations, [named_table, public]),
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ets:new(translations_obsolete, [named_table, public]),
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ets:new(files, [named_table, public]),
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ets:new(vars, [named_table, public]),
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case init:get_plain_arguments() of
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["-srcmsg2po", Dir, File] ->
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print_po_header(File),
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Status = process(Dir, File, srcmsg2po),
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halt(Status);
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["-unused", Dir, File] ->
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Status = process(Dir, File, unused),
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halt(Status);
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[Dir, File] ->
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Status = process(Dir, File, used),
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halt(Status);
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_ ->
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print_usage(),
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halt(?STATUS_USAGE)
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end.
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process(Dir, File, Used) ->
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case load_file(File) of
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{error, Reason} ->
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io:format("~s: ~s~n", [File, file:format_error(Reason)]),
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?STATUS_ERROR;
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_ ->
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FileList = find_src_files(Dir),
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lists:foreach(
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fun(F) ->
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parse_file(Dir, F, Used)
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end, FileList),
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case Used of
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unused ->
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ets:foldl(fun({Key, _}, _) ->
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io:format("~p~n", [Key])
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end, ok, translations);
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srcmsg2po ->
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ets:foldl(fun({Key, Trans}, _) ->
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print_translation_obsolete(Key, Trans)
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end, ok, translations_obsolete);
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_ ->
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ok
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end,
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?STATUS_SUCCESS
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end.
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parse_file(Dir, File, Used) ->
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ets:delete_all_objects(vars),
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case epp:parse_file(File, [Dir, filename:dirname(File) | code:get_path()], []) of
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{ok, Forms} ->
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lists:foreach(
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fun(F) ->
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parse_form(Dir, File, F, Used)
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end, Forms);
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_ ->
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ok
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end.
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parse_form(Dir, File, Form, Used) ->
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case Form of
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%%{undefined, Something} ->
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%% io:format("Undefined: ~p~n", [Something]);
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{call,
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_,
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{remote, _, {atom, _, translate}, {atom, _, translate}},
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[_, {string, Line, Str}]
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} ->
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process_string(Dir, File, Line, Str, Used);
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{call,
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_,
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{remote, _, {atom, _, translate}, {atom, _, translate}},
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[_, {var, _, Name}]
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} ->
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case ets:lookup(vars, Name) of
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[{_Name, Value, Line}] ->
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process_string(Dir, File, Line, Value, Used);
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_ ->
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ok
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end;
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{match,
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_,
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{var, _, Name},
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{string, Line, Value}
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} ->
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ets:insert(vars, {Name, Value, Line});
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L when is_list(L) ->
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lists:foreach(
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fun(F) ->
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parse_form(Dir, File, F, Used)
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end, L);
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T when is_tuple(T) ->
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lists:foreach(
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fun(F) ->
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parse_form(Dir, File, F, Used)
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end, tuple_to_list(T));
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_ ->
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ok
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end.
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process_string(_Dir, _File, _Line, "", _Used) ->
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ok;
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process_string(_Dir, File, Line, Str, Used) ->
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case {ets:lookup(translations, Str), Used} of
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{[{_Key, _Trans}], unused} ->
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ets:delete(translations, Str);
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{[{_Key, _Trans}], used} ->
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ok;
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{[{_Key, Trans}], srcmsg2po} ->
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ets:delete(translations_obsolete, Str),
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print_translation(File, Line, Str, Trans);
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{_, used} ->
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case ets:lookup(files, File) of
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[{_}] ->
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ok;
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_ ->
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io:format("~n% ~s~n", [File]),
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ets:insert(files, {File})
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end,
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case Str of
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[] -> ok;
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_ -> io:format("{~p, \"\"}.~n", [Str])
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end,
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ets:insert(translations, {Str, ""});
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{_, srcmsg2po} ->
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case ets:lookup(files, File) of
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[{_}] ->
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ok;
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_ ->
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ets:insert(files, {File})
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end,
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ets:insert(translations, {Str, ""}),
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print_translation(File, Line, Str, "");
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_ ->
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ok
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end.
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load_file(File) ->
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case file:consult(File) of
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{ok, Terms} ->
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lists:foreach(
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fun({Orig, Trans}) ->
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case Trans of
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"" ->
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ok;
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_ ->
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ets:insert(translations, {Orig, Trans}),
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ets:insert(translations_obsolete, {Orig, Trans})
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end
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end, Terms);
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Err ->
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Err
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end.
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find_src_files(Dir) ->
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case file:list_dir(Dir) of
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{ok, FileList} ->
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recurse_filelist(
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lists:map(
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fun(F) ->
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filename:join(Dir, F)
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end, FileList));
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_ ->
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[]
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end.
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recurse_filelist(FileList) ->
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recurse_filelist(FileList, []).
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recurse_filelist([], Acc) ->
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lists:reverse(Acc);
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recurse_filelist([H | T], Acc) ->
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case file:read_file_info(H) of
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{ok, #file_info{type = directory}} ->
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recurse_filelist(T, lists:reverse(find_src_files(H)) ++ Acc);
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{ok, #file_info{type = regular}} ->
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case string:substr(H, string:len(H) - 3) of
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".erl" ->
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recurse_filelist(T, [H | Acc]);
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".hrl" ->
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recurse_filelist(T, [H | Acc]);
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_ ->
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recurse_filelist(T, Acc)
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end;
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_ ->
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recurse_filelist(T, Acc)
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end.
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print_usage() ->
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io:format(
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"Usage: extract_translations [-unused] dir file~n"
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"~n"
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"Example:~n"
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" extract_translations . ./msgs/ru.msg~n"
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).
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%%%
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%%% Gettext
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%%%
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print_po_header(File) ->
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MsgProps = get_msg_header_props(File),
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{Language, [LastT | AddT]} = prepare_props(MsgProps),
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application:load(ejabberd),
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{ok, Version} = application:get_key(ejabberd, vsn),
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print_po_header(Version, Language, LastT, AddT).
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get_msg_header_props(File) ->
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{ok, F} = file:open(File, [read]),
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Lines = get_msg_header_props(F, []),
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file:close(F),
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Lines.
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get_msg_header_props(F, Lines) ->
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String = io:get_line(F, ""),
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case io_lib:fread("% ", String) of
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{ok, [], RemString} ->
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case io_lib:fread("~s", RemString) of
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{ok, [Key], Value} when Value /= "\n" ->
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%% The first character in Value is a blankspace:
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%% And the last characters are 'slash n'
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ValueClean = string:substr(Value, 2, string:len(Value)-2),
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get_msg_header_props(F, Lines ++ [{Key, ValueClean}]);
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_ ->
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get_msg_header_props(F, Lines)
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end;
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_ ->
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Lines
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end.
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prepare_props(MsgProps) ->
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Language = proplists:get_value("Language:", MsgProps),
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Authors = proplists:get_all_values("Author:", MsgProps),
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{Language, Authors}.
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print_po_header(Version, Language, LastTranslator, AdditionalTranslatorsList) ->
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AdditionalTranslatorsString = build_additional_translators(AdditionalTranslatorsList),
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HeaderString =
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"msgid \"\"\n"
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"msgstr \"\"\n"
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"\"Project-Id-Version: " ++ Version ++ "\\n\"\n"
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++ "\"X-Language: " ++ Language ++ "\\n\"\n"
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"\"Last-Translator: " ++ LastTranslator ++ "\\n\"\n"
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++ AdditionalTranslatorsString ++
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"\"MIME-Version: 1.0\\n\"\n"
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"\"Content-Type: text/plain; charset=UTF-8\\n\"\n"
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"\"Content-Transfer-Encoding: 8bit\\n\"\n",
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io:format("~s~n", [HeaderString]).
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build_additional_translators(List) ->
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lists:foldl(
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fun(T, Str) ->
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Str ++ "\"X-Additional-Translator: " ++ T ++ "\\n\"\n"
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end,
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"",
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List).
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print_translation(File, Line, Str, StrT) ->
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{ok, StrQ, _} = regexp:gsub(Str, "\"", "\\\""),
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{ok, StrTQ, _} = regexp:gsub(StrT, "\"", "\\\""),
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io:format("#: ~s:~p~nmsgid \"~s\"~nmsgstr \"~s\"~n~n", [File, Line, StrQ, StrTQ]).
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print_translation_obsolete(Str, StrT) ->
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File = "unknown.erl",
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Line = 1,
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{ok, StrQ, _} = regexp:gsub(Str, "\"", "\\\""),
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{ok, StrTQ, _} = regexp:gsub(StrT, "\"", "\\\""),
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io:format("#: ~s:~p~n#~~ msgid \"~s\"~n#~~ msgstr \"~s\"~n~n", [File, Line, StrQ, StrTQ]).
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