aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorGuido Günther <agx@sigxcpu.org>2013-10-30 13:44:41 +0100
committerGuido Günther <agx@sigxcpu.org>2013-10-30 16:32:44 +0100
commit08efa5f7d2f95a608d1712a8d684aed6c3a1aa4a (patch)
treee50b6c11ee452f0e36af92418fee9512929d30e1
Initial commit
-rw-r--r--.gitignore3
-rw-r--r--COPYING165
-rw-r--r--README14
-rwxr-xr-xrebarbin0 -> 119212 bytes
-rw-r--r--rebar.config3
-rw-r--r--src/proplutils.app.src9
-rw-r--r--src/proplutils.erl40
-rw-r--r--test/proplutils_test.erl42
8 files changed, 276 insertions, 0 deletions
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..4e57610
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+.eunit/
+ebin/
+*~
diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000..65c5ca8
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,165 @@
+ GNU LESSER GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+
+ This version of the GNU Lesser General Public License incorporates
+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
+
+ 0. Additional Definitions.
+
+ As used herein, "this License" refers to version 3 of the GNU Lesser
+General Public License, and the "GNU GPL" refers to version 3 of the GNU
+General Public License.
+
+ "The Library" refers to a covered work governed by this License,
+other than an Application or a Combined Work as defined below.
+
+ An "Application" is any work that makes use of an interface provided
+by the Library, but which is not otherwise based on the Library.
+Defining a subclass of a class defined by the Library is deemed a mode
+of using an interface provided by the Library.
+
+ A "Combined Work" is a work produced by combining or linking an
+Application with the Library. The particular version of the Library
+with which the Combined Work was made is also called the "Linked
+Version".
+
+ The "Minimal Corresponding Source" for a Combined Work means the
+Corresponding Source for the Combined Work, excluding any source code
+for portions of the Combined Work that, considered in isolation, are
+based on the Application, and not on the Linked Version.
+
+ The "Corresponding Application Code" for a Combined Work means the
+object code and/or source code for the Application, including any data
+and utility programs needed for reproducing the Combined Work from the
+Application, but excluding the System Libraries of the Combined Work.
+
+ 1. Exception to Section 3 of the GNU GPL.
+
+ You may convey a covered work under sections 3 and 4 of this License
+without being bound by section 3 of the GNU GPL.
+
+ 2. Conveying Modified Versions.
+
+ If you modify a copy of the Library, and, in your modifications, a
+facility refers to a function or data to be supplied by an Application
+that uses the facility (other than as an argument passed when the
+facility is invoked), then you may convey a copy of the modified
+version:
+
+ a) under this License, provided that you make a good faith effort to
+ ensure that, in the event an Application does not supply the
+ function or data, the facility still operates, and performs
+ whatever part of its purpose remains meaningful, or
+
+ b) under the GNU GPL, with none of the additional permissions of
+ this License applicable to that copy.
+
+ 3. Object Code Incorporating Material from Library Header Files.
+
+ The object code form of an Application may incorporate material from
+a header file that is part of the Library. You may convey such object
+code under terms of your choice, provided that, if the incorporated
+material is not limited to numerical parameters, data structure
+layouts and accessors, or small macros, inline functions and templates
+(ten or fewer lines in length), you do both of the following:
+
+ a) Give prominent notice with each copy of the object code that the
+ Library is used in it and that the Library and its use are
+ covered by this License.
+
+ b) Accompany the object code with a copy of the GNU GPL and this license
+ document.
+
+ 4. Combined Works.
+
+ You may convey a Combined Work under terms of your choice that,
+taken together, effectively do not restrict modification of the
+portions of the Library contained in the Combined Work and reverse
+engineering for debugging such modifications, if you also do each of
+the following:
+
+ a) Give prominent notice with each copy of the Combined Work that
+ the Library is used in it and that the Library and its use are
+ covered by this License.
+
+ b) Accompany the Combined Work with a copy of the GNU GPL and this license
+ document.
+
+ c) For a Combined Work that displays copyright notices during
+ execution, include the copyright notice for the Library among
+ these notices, as well as a reference directing the user to the
+ copies of the GNU GPL and this license document.
+
+ d) Do one of the following:
+
+ 0) Convey the Minimal Corresponding Source under the terms of this
+ License, and the Corresponding Application Code in a form
+ suitable for, and under terms that permit, the user to
+ recombine or relink the Application with a modified version of
+ the Linked Version to produce a modified Combined Work, in the
+ manner specified by section 6 of the GNU GPL for conveying
+ Corresponding Source.
+
+ 1) Use a suitable shared library mechanism for linking with the
+ Library. A suitable mechanism is one that (a) uses at run time
+ a copy of the Library already present on the user's computer
+ system, and (b) will operate properly with a modified version
+ of the Library that is interface-compatible with the Linked
+ Version.
+
+ e) Provide Installation Information, but only if you would otherwise
+ be required to provide such information under section 6 of the
+ GNU GPL, and only to the extent that such information is
+ necessary to install and execute a modified version of the
+ Combined Work produced by recombining or relinking the
+ Application with a modified version of the Linked Version. (If
+ you use option 4d0, the Installation Information must accompany
+ the Minimal Corresponding Source and Corresponding Application
+ Code. If you use option 4d1, you must provide the Installation
+ Information in the manner specified by section 6 of the GNU GPL
+ for conveying Corresponding Source.)
+
+ 5. Combined Libraries.
+
+ You may place library facilities that are a work based on the
+Library side by side in a single library together with other library
+facilities that are not Applications and are not covered by this
+License, and convey such a combined library under terms of your
+choice, if you do both of the following:
+
+ a) Accompany the combined library with a copy of the same work based
+ on the Library, uncombined with any other library facilities,
+ conveyed under the terms of this License.
+
+ b) Give prominent notice with the combined library that part of it
+ is a work based on the Library, and explaining where to find the
+ accompanying uncombined form of the same work.
+
+ 6. Revised Versions of the GNU Lesser General Public License.
+
+ The Free Software Foundation may publish revised and/or new versions
+of the GNU Lesser General Public License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns.
+
+ Each version is given a distinguishing version number. If the
+Library as you received it specifies that a certain numbered version
+of the GNU Lesser General Public License "or any later version"
+applies to it, you have the option of following the terms and
+conditions either of that published version or of any later version
+published by the Free Software Foundation. If the Library as you
+received it does not specify a version number of the GNU Lesser
+General Public License, you may choose any version of the GNU Lesser
+General Public License ever published by the Free Software Foundation.
+
+ If the Library as you received it specifies that a proxy can decide
+whether future versions of the GNU Lesser General Public License shall
+apply, that proxy's public statement of acceptance of any version is
+permanent authorization for you to choose that version for the
+Library.
diff --git a/README b/README
new file mode 100644
index 0000000..6a6f1d7
--- /dev/null
+++ b/README
@@ -0,0 +1,14 @@
+Some proplist helpers
+=====================
+
+Delete all properties named foo or bar:
+
+ 1> proplutils:delete([foo, bar], [{foo, "does"}, {bar, "not"}, {baz, "matter"}]).
+ [{baz,"matter"}]
+
+Delete all properties that aren't named foo or bar:
+
+ 1> proplutils:delete_except([foo, bar], [{foo, "does"}, {bar, "not"}, {baz, "matter"}]).
+ [{foo,"does"},{bar,"not"}]
+
+
diff --git a/rebar b/rebar
new file mode 100755
index 0000000..7bdb274
--- /dev/null
+++ b/rebar
Binary files differ
diff --git a/rebar.config b/rebar.config
new file mode 100644
index 0000000..21412f8
--- /dev/null
+++ b/rebar.config
@@ -0,0 +1,3 @@
+%%-*- mode: erlang -*-
+
+{deps, []}.
diff --git a/src/proplutils.app.src b/src/proplutils.app.src
new file mode 100644
index 0000000..c8b6ec9
--- /dev/null
+++ b/src/proplutils.app.src
@@ -0,0 +1,9 @@
+%%-*- mode: erlang -*-
+{application, proplutils,
+ [
+ {description, "Some util functions for proplists"},
+ {vsn, git},
+ {registered, []},
+ {applications, []},
+ {env, []}
+ ]}.
diff --git a/src/proplutils.erl b/src/proplutils.erl
new file mode 100644
index 0000000..a78a630
--- /dev/null
+++ b/src/proplutils.erl
@@ -0,0 +1,40 @@
+%% @author Guido Günther <agx@sigxcpu.org>
+%% @copyright 2013 godiug.net
+%%
+%% This library is free software; you can redistribute it and/or
+%% modify it under the terms of the GNU Lesser General Public
+%% License as published by the Free Software Foundation; either
+%% version 3 of the License, or (at your option) any later version.
+%%
+%% This library is distributed in the hope that it will be useful,
+%% but WITHOUT ANY WARRANTY; without even the implied warranty of
+%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+%% Lesser General Public License for more details.
+%%
+%% You should have received a copy of the GNU Lesser General Public
+%% License along with this library. If not, see
+%% <http://www.gnu.org/licenses/>.
+%%
+%% @doc Simplify proplist manipulation a bit
+
+-module(proplutils).
+-export([delete/2,
+ delete_except/2
+ ]).
+
+%% @doc Delete all Keys from Proplist
+delete(Key, PropList) when is_atom(Key) ->
+ proplists:delete(Key, PropList);
+delete([], Proplist) -> Proplist;
+delete([H | T], PropList) ->
+ PL = proplists:delete(H, PropList),
+ delete(T, PL).
+
+%% @doc Delete all keys except Keys from PropList
+delete_except(Key, PropList) when is_atom(Key) ->
+ delete_except([Key], PropList);
+delete_except(Keys, PropList) when is_list(Keys) ->
+ [{X, Y} || {X, Y} <- PropList, lists:member(X, Keys)].
+
+
+
diff --git a/test/proplutils_test.erl b/test/proplutils_test.erl
new file mode 100644
index 0000000..c14c84b
--- /dev/null
+++ b/test/proplutils_test.erl
@@ -0,0 +1,42 @@
+-module(proplutils_test).
+-include_lib("eunit/include/eunit.hrl").
+
+% Test descriptions
+delete_test_() ->
+ [{"Using a atom should work as proplist:delete/2",
+ check_delete_atom_arg()},
+ {"Using a list should remove all keys in the list",
+ check_delete_list_arg()}
+ ].
+
+delete_except_test_() ->
+ [{"Using an atom should remove everything except keys"
+ "matching that atom",
+ check_delete_except_atom_arg()},
+ {"Using a list should remove all keys except keys"
+ "matching the atoms in the list",
+ check_delete_except_list_arg()}
+ ].
+
+% Tests
+check_delete_atom_arg() ->
+ PL = [{foo, "doesnot"}, {bar, "matter"}],
+ Ret = proplutils:delete(foo, PL),
+ [?_assertEqual(Ret, [{bar, "matter"}])].
+
+check_delete_list_arg() ->
+ PL = [{foo, "doesnot"}, {bar, "matter"}, {baz, "really"}],
+ Ret = proplutils:delete([foo, baz], PL),
+ [?_assertEqual(Ret, [{bar, "matter"}])].
+
+check_delete_except_atom_arg() ->
+ PL = [{foo, "doesnot"}, {bar, "matter"}, {baz, "really"}],
+ Ret = proplutils:delete_except(bar, PL),
+ [?_assertEqual(Ret, [{bar, "matter"}])].
+
+check_delete_except_list_arg() ->
+ PL = [{foo, "doesnot"}, {bar, "matter"}, {baz, "really"}],
+ Ret = proplutils:delete_except([foo, bar], PL),
+ [?_assertEqual(Ret,[{foo, "doesnot"}, {bar, "matter"}])].
+
+