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A static code analysis tool with a focus on code consistency and teaching.
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lib/credo/code/name.ex
defmodule Credo.Code.Name do
@moduledoc """
This module provides helper functions to process names of functions, module
attributes and modules.
"""
def last(name) when is_atom(name) do
name |> to_string |> String.split(".") |> List.last
end
def last(name) when is_binary(name) do
name |> String.split(".") |> List.last
end
def last(mod_list) when is_list(mod_list) do
mod_list |> List.last |> to_string
end
# Credo.Code.Name |> to_string
# => "Elixir.Credo.Code.Name"
def first(name) when is_atom(name) do
name |> to_string |> String.split(".") |> Enum.at(1)
end
def first(name) when is_binary(name) do
name |> String.split(".") |> List.first
end
def first(mod_list) when is_list(mod_list) do
mod_list |> List.first |> to_string
end
def full({:__aliases__, _, mod_list}) do
mod_list |> full
end
def full(mod_list) when is_list(mod_list) do
mod_list
|> Enum.map(&full/1)
|> Enum.join(".")
end
def full({name, _, nil}) when is_atom(name) do
name |> full
end
def full(name) when is_atom(name) do
name
|> to_string
|> String.split(".")
|> name_from_splitted_parts
end
def full(name) when is_binary(name) do
name
end
def parts_count(module_name) do
module_name
|> String.split(".")
|> length
end
def pascal_case?(name) do
name |> String.match?(~r/^[A-Z][a-zA-Z0-9]*$/)
end
def split_pascal_case(name) do
name |> String.replace(~r/([A-Z])/, " \\1") |> String.split
end
def snake_case?(name) do
name |> String.match?(~r/^[a-z0-9\_\?\!]+$/)
end
defp name_from_splitted_parts(splitted_parts) when length(splitted_parts) > 1 do
splitted_parts
|> Enum.slice(1, length(splitted_parts))
|> Enum.join(".")
end
defp name_from_splitted_parts(splitted_parts) do
splitted_parts
|> Enum.join(".")
end
end