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Diffstat (limited to 'src/rlx_goal.peg')
| -rw-r--r-- | src/rlx_goal.peg | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/src/rlx_goal.peg b/src/rlx_goal.peg new file mode 100644 index 0000000..08a3726 --- /dev/null +++ b/src/rlx_goal.peg @@ -0,0 +1,55 @@ + +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, AppName}; + [_,AppName,_,Op,_,Vsn,_, _] -> + {ok, + {AppName, + rlx_goal_utils:to_vsn(Vsn), + rlx_goal_utils:to_op(Op)}}; + [_,AppName,_,Op,_,Vsn1,_,_,_,Vsn2,_,_] -> + {ok, + {AppName, + rlx_goal_utils:to_vsn(Vsn1), + rlx_goal_utils:to_vsn(Vsn2), + rlx_goal_utils:to_op(Op)}}; + _ -> + io:format("~p~n", [Node]) + end + ` ; + +ws <- [ \t\n\s\r] ; + +app_name <- [a-zA-Z0-9_]+ + ` erlang:list_to_atom(erlang:binary_to_list(erlang:iolist_to_binary(Node))) ` ; + +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).`
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