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#!/usr/bin/env escript
%% -*- erlang -*-
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2009-2022. 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
%%----------------------------------------------------------------------
-mode(compile).
%%======================================================================
%% External functions
%%======================================================================
%%----------------------------------------------------------------------
%% Function: main/1
%% Description:
%%----------------------------------------------------------------------
main([CPath, InFile, OutFile]) ->
InDev =
case file:open(InFile, [read]) of
{ok,ID} ->
ID;
_ ->
fail(5, "Could not open ~ts for reading", [InFile])
end,
OutDev =
case file:open(OutFile, [write]) of
{ok,OD} ->
OD;
_ ->
fail(5, "Could not open ~ts for writing", [OutFile])
end,
parse(InDev, OutDev, CPath);
main(_) ->
usage().
%%======================================================================
%% Internal functions
%%======================================================================
%%----------------------------------------------------------------------
%% Function: usage/0
%% Description:
%%----------------------------------------------------------------------
usage() ->
fail("usage: codeline_preprocessing.escript <infile> <outfile>\n").
%%======================================================================
%% Internal functions
%%======================================================================
parse(InDev, OutDev, CPath) ->
case io:get_line(InDev, "") of
eof ->
file:close(OutDev),
file:close(InDev);
Line ->
file:write(OutDev, parse_line(CPath, Line)),
parse(InDev, OutDev, CPath)
end.
parse_line(CPath, Line) ->
case re:run(Line, "<codeinclude(.*)(>.*</codeinclude>|/>)", [{capture, [1], list}]) of
{match,[Attributes]} ->
File =
case re:run(Attributes,"file=\"([^\"]+)\"",[{capture, [1], list}]) of
{match, [FileMatch]} ->
FileMatch;
nomatch ->
fail("Did not find 'file' attribute in codeinclude")
end,
FileContent =
case file:read_file(filename:join(CPath, File)) of
{ok, Bin} ->
Bin;
{error,Error} ->
fail("Could not open file ~ts (~t)~n", [File, Error])
end,
Type =
case re:run(Attributes,"(type=\"[^\"]+\")",[{capture, [1], list}]) of
{match,[TypeMatch]} ->
TypeMatch;
nomatch ->
""
end,
TaggedContent =
case re:run(Attributes,"tag=\"([^\"]+)\"",[{capture, [1], list}]) of
{match,[Tag]} ->
case re:run(FileContent,"^" ++ Tag ++ "\n((.|\n)*)\n" ++
Tag ++ "\$",[global, multiline, {capture, [1], binary}]) of
{match,[[Match]]} ->
Match;
nomatch ->
fail(4, "Could not find the tag ~p in ~ts",
[Tag, File])
end;
nomatch ->
FileContent
end,
["<code " ++ Type ++ ">\n<![CDATA[\n", TaggedContent, "]]></code>\n"];
nomatch ->
Line
end.
%%----------------------------------------------------------------------
%% Function: get_code/2
%% Description:
%%----------------------------------------------------------------------
fail(Fmt) ->
fail(Fmt, []).
fail(Fmt, Args) ->
fail(1, Fmt, Args).
fail(Reason, Fmt, Args) ->
io:format(standard_error, Fmt, Args),
halt(Reason).
|
