ex_sel
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slapers
Simple runtime expression language for elixir
ExSel
Simple expression language for elixir.
Installation
The package can be installed by adding ex_sel to your list of dependencies in mix.exs:
def deps do
[
{:ex_sel, "~> 0.1.0"}
]
end
Basic Usage
iex> ExSel.aexpr("8 + 2 / 4")
{:ok, {:+, [8, {:/, [2, 4]}]}}
iex> ExSel.bexpr("8 + 2 > 4")
{:ok, {:>, [{:+, [8, 2]}, 4]}}
iex> {:ok, ast} = ExSel.aexpr("varA + varB / 4")
iex> my_vars = %{"varA" => 8, "varB" => 2}
iex> ExSel.eval!(ast, my_vars)
8.5
Documentation can be found at https://hexdocs.pm/ex_sel.
License
Copyright 2018 Stefan Lapers
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.
slapers