From 84adefa331c4159d432d22840663c38f155cd4c1 Mon Sep 17 00:00:00 2001
From: Erlang/OTP <otp@erlang.org>
Date: Fri, 20 Nov 2009 14:54:40 +0000
Subject: The R13B03 release.

---
 lib/ic/src/icpreproc.erl | 111 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 111 insertions(+)
 create mode 100644 lib/ic/src/icpreproc.erl

(limited to 'lib/ic/src/icpreproc.erl')

diff --git a/lib/ic/src/icpreproc.erl b/lib/ic/src/icpreproc.erl
new file mode 100644
index 0000000000..0ed7813ebd
--- /dev/null
+++ b/lib/ic/src/icpreproc.erl
@@ -0,0 +1,111 @@
+%%
+%% %CopyrightBegin%
+%% 
+%% Copyright Ericsson AB 1997-2009. All Rights Reserved.
+%% 
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%% 
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights 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).
+
+
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