%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 1997-2009. 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%
%%
%%
-module(icpreproc).
-export([preproc/2]).
-import(lists, [filter/2]).
%%----------------------------------------------------------------------
%%----------------------------------------------------------------------
preproc(G, File) ->
Cmd = ic_options:get_opt(G, preproc_cmd),
Flags = ic_options:get_opt(G, preproc_flags),
case Cmd of
"erl" ->
case ic_pp:run(File,Flags) of
{ok, [$#, $ , $1 | Rest], []} ->
[$#, $ , $1 | Rest];
{ok, [$#, $ , $1 | Rest], Warning} ->
print_warning(G,Warning),
[$#, $ , $1 | Rest];
{error,Error} ->
print_error(G,Error)
end;
_ ->
Line = Cmd++" "++Flags++" "++File,
% FIXME: Check status code of command instead of this test
case os:cmd(Line) of
[$#, $ , C | Rest] when is_integer(C), C > $0, C =< $9 ->
[$#, $ , C | Rest];
X ->
ic_error:fatal_error(G, {preproc, filter(X)})
end
end.
filter(X) ->
X2 = divide_nl(X, []),
filter_x_switch(X2).
divide_nl([10 | Xs], Out) ->
[lists:reverse(Out) | divide_nl(Xs, [])];
divide_nl([X | Xs], Out) -> divide_nl(Xs, [X|Out]);
divide_nl([], Out) -> lists:reverse(Out).
filter_x_switch(L) ->
filter(fun([$g,$c,$c,$:,$ ,$W,$a,$r,$n,$i,$n,$g,$:,$ ,$`,$-,$x,$ | _]) ->
false;
(_) -> true end, L).
print_error(_G,[]) ->
ok;
print_error(G,[{File,Line,Text}]) ->
ErrorText = File++":"++integer_to_list(Line)++": "++Text,
ic_error:fatal_error(G, {ic_pp_error, ErrorText}),
ok;
print_error(G,[{File,Line,Text}|T]) ->
ErrorText = File++":"++integer_to_list(Line)++": "++Text,
ic_error:error(G, {ic_pp_error, ErrorText}),
print_error(G,T);
print_error(G,[H]) ->
ErrorText = H++"\n",
ic_error:fatal_error(G, {ic_pp_error, ErrorText}),
ok;
print_error(G,[H|T]) ->
ErrorText = H++"\n",
ic_error:error(G, {ic_pp_error, ErrorText}),
print_error(G,T).
print_warning(_G,[]) ->
ok;
print_warning(G,[{File,Line,Text}|T]) ->
WarText = File++":"++integer_to_list(Line)++": "++Text,
ic_error:warn(G, {ic_pp_warning, WarText}),
print_warning(G,T);
print_warning(G,[H|T]) ->
WarText = H++"\n",
ic_error:warn(G, {ic_pp_warning, WarText}),
print_warning(G,T).
