Juice
Reduce in memory data structures using a lightweight query language
Installation
Add juice to your list of dependencies in mix.exs
def deps do
[{:juice, "~> 0.0.3"}]
endUsage
Juice can collect and reject string or atom keys from an Elixir Map or List.
Given the map
iex> fruit_basket = %{
apples: {
granny_smith: 10,
golden_delicious: 3
},
"oranges" => 5,
plums: 6,
"mangos" => 2,
recipients: [:steph, "michael", :lebron, "charles"]
}Return everything with a wildcard *
iex> Juice.squeeze(fruit_basket, "*") == %{
apples: {
granny_smith: 10,
golden_delicious: 3
},
"oranges" => 5,
plums: 6,
"mangos" => 2,
recipients: [:steph, "michael", :lebron, "charles"]
}Remove plums and mangos
iex> Juice.squeeze(fruit_basket, "* -plums -mangos") == %{
apples: {
granny_smith: 10,
golden_delicious: 3
},
"oranges" => 5,
recipients: [:steph, "michael", :lebron, "charles"]
}Only collect granny_smith apples and oranges with nested . notation
iex> Juice.squeeze(fruit_basket, "apples.granny_smith oranges") == %{
apples: {
granny_smith: 10,
},
"oranges" => 5
}Collect plums and mangos for charles
iex> Juice.squeeze(fruit_basket, "plums mangos recipients.charles") == %{
plums: 6,
"mangos" => 2,
recipients: ["charles"]
}