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-rw-r--r--src/rcl_goal.peg54
-rw-r--r--src/rcl_goal_utils.erl79
2 files changed, 133 insertions, 0 deletions
diff --git a/src/rcl_goal.peg b/src/rcl_goal.peg
new file mode 100644
index 0000000..24e78a8
--- /dev/null
+++ b/src/rcl_goal.peg
@@ -0,0 +1,54 @@
+
+constraint <- ws? app_name ws? between_op ws? version ws? "," ws? version ws? !.
+ / ws? app_name ws? constraint_op ws? version ws? !.
+ / ws? app_name ws? !.
+
+ `
+ case Node of
+ [_,AppName,_, _] ->
+ {ok, erlang:iolist_to_binary(AppName)};
+ [_,AppName,_,Op,_,Vsn,_, _] ->
+ {ok,
+ {erlang:iolist_to_binary(AppName),
+ rcl_goal_utils:to_vsn(Vsn),
+ rcl_goal_utils:to_op(Op)}};
+ [_,AppName,_,Op,_,Vsn1,_,_,_,Vsn2,_,_] ->
+ {ok,
+ {erlang:iolist_to_binary(AppName),
+ rcl_goal_utils:to_vsn(Vsn1),
+ rcl_goal_utils:to_vsn(Vsn2),
+ rcl_goal_utils:to_op(Op)}};
+ _ ->
+ io:format("~p~n", [Node])
+ end
+ ` ;
+
+ws <- [ \t\n\s\r] ;
+
+app_name <- [a-zA-Z0-9_]+ ;
+
+between_op <-
+ ":" ws? ( "btwn" / "between" ) ws? ":"
+ ` case Node of
+ [C,_,Op,_,C] -> erlang:iolist_to_binary([C,Op,C]);
+ _ -> Node
+ end
+ ` ;
+
+constraint_op <- "=" / "-" / "<=" / "<" / "~>" / ">=" / ">" / word_constraint_op / ":" ;
+
+word_constraint_op <-
+ ":" ws? ( "gte" / "lte" / "gt" / "lt" / "pes" ) ws? ":"
+ ` case Node of
+ [C,_,Op,_,C] -> erlang:iolist_to_binary([C,Op,C]);
+ _ -> Node
+ end
+ ` ;
+
+
+version <- [0-9a-zA-Z-+.]+ ;
+
+%% This only exists to get around a bug in erlang where if
+%% warnings_as_errors is specified `nowarn` directives are ignored
+
+ `-compile(export_all).` \ No newline at end of file
diff --git a/src/rcl_goal_utils.erl b/src/rcl_goal_utils.erl
new file mode 100644
index 0000000..75fcda4
--- /dev/null
+++ b/src/rcl_goal_utils.erl
@@ -0,0 +1,79 @@
+%% -*- mode: Erlang; fill-column: 80; comment-column: 75; -*-
+%%% Copyright 2012 Erlware, LLC. All Rights Reserved.
+%%%
+%%% This file is provided to you 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.
+%%%---------------------------------------------------------------------------
+%%% @author Eric Merritt <[email protected]>
+%%% @copyright (C) 2012 Erlware, LLC.
+%%%
+%%% @doc
+%%% Utilities to help with parsing of target specs
+-module(rcl_goal_utils).
+
+-export([to_op/1,
+ to_vsn/1]).
+
+%%============================================================================
+%% types
+%%============================================================================
+
+
+%%============================================================================
+%% API
+%%============================================================================
+-spec to_op(iolist()) -> depsolver:constraint_op().
+to_op(List)
+ when erlang:is_list(List) ->
+ to_op(erlang:iolist_to_binary(List));
+to_op(<<"=">>) ->
+ '=';
+to_op(<<":">>) ->
+ '=';
+to_op(<<"-">>) ->
+ '=';
+to_op(<<"<">>) ->
+ 'lt';
+to_op(<<":lt:">>) ->
+ 'lt';
+to_op(<<"<=">>) ->
+ 'lte';
+to_op(<<":lte:">>) ->
+ 'lte';
+to_op(<<">">>) ->
+ 'gt';
+to_op(<<":gt:">>) ->
+ 'gt';
+to_op(<<">=">>) ->
+ 'gte';
+to_op(<<":gte:">>) ->
+ 'gte';
+to_op(<<"~>">>) ->
+ 'pes';
+to_op(<<":pes:">>) ->
+ 'pes';
+to_op(<<":btwn:">>) ->
+ 'between';
+to_op(<<":between:">>) ->
+ 'between'.
+
+
+to_vsn(Version) when erlang:is_list(Version) ->
+ to_vsn(erlang:iolist_to_binary(Version));
+to_vsn(Vsn) ->
+ depsolver:parse_version(Vsn).
+
+%%%===================================================================
+%%% Test Functions
+%%%===================================================================