#!/usr/bin/env escript
%% -*- erlang -*-
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2009-2010. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
%% You may obtain a copy of the License at
%%
%% http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS,
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%% See the License for the specific language governing permissions and
%% limitations under the License.
%%
%% %CopyrightEnd%
%%----------------------------------------------------------------------
%% File : codeline_preprocessing.escript
%%
%% Created : 10 Sep 2008 by Lars Thorsen
%%----------------------------------------------------------------------
%%======================================================================
%% External functions
%%======================================================================
%%----------------------------------------------------------------------
%% Function: main/1
%% Description:
%%----------------------------------------------------------------------
main([InFile, OutFile]) ->
InDev =
case file:open(InFile, [read]) of
{ok,ID} ->
ID;
_ ->
halt(5)
end,
CPath=filename:dirname(InFile),
OutDev =
case file:open(OutFile, [write]) of
{ok,OD} ->
OD;
_ ->
halt(5)
end,
case re:compile("<codeinclude(?:\040|\t)*file=\"([^\"]*)\"(?:(?:(?:\040|\t)*tag=\"([^\"]*)\".*)|(?:.*))(?:/>|/codeinclude>)") of
{ok, Mp} ->
parse(InDev, OutDev, CPath, Mp);
_ ->
halt(2)
end;
main(_) ->
usage().
%%======================================================================
%% Internal functions
%%======================================================================
%%----------------------------------------------------------------------
%% Function: usage/0
%% Description:
%%----------------------------------------------------------------------
usage() ->
io:format("usage: codeline_preprocessing.escript <infile> <outfile>\n"),
halt(1).
%%======================================================================
%% Internal functions
%%======================================================================
parse(InDev, OutDev, CPath, Mp) ->
case io:get_line(InDev, "") of
eof ->
file:close(OutDev),
file:close(InDev);
String ->
case re:run(String, Mp,[{capture, [1,2], list}]) of
{match,[File, []]} ->
case file:read_file(filename:join(CPath, File))of
{ok, Bin} ->
file:write(OutDev, "<code>\n<![CDATA[\n"),
file:write(OutDev, Bin),
file:write(OutDev, "]]></code>");
_ ->
halt(3)
end;
{match,[File, Tag]} ->
String2 = get_code(filename:join(CPath, File), Tag),
file:write(OutDev, "<code>\n<![CDATA[\n"),
file:write(OutDev, String2),
file:write(OutDev, "]]></code>");
_ ->
file:write(OutDev, String)
end,
parse(InDev, OutDev, CPath, Mp)
end.
%%----------------------------------------------------------------------
%% Function: get_code/2
%% Description:
%%----------------------------------------------------------------------
get_code(File, Tag) ->
case file:read_file(File) of
{ok, Bin} ->
case re:run(Bin,"^" ++ Tag ++ "\n((.|\n)*)\n" ++
Tag ++ "\$",[global, multiline, {capture, [1], binary}]) of
{match,[[Match]]} ->
Match;
_ ->
halt(4)
end;
_ ->
halt(3)
end.
