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credo
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A static code analysis tool with a focus on code consistency and teaching.
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Files
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(mod_list) when is_list(mod_list) do
mod_list
|> Enum.map(&full/1)
|> Enum.join(".")
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 full({name, _, nil}) when is_atom(name) do
full(name)
end
def full({:__aliases__, _, mod_list}) do
full(mod_list)
end
def full({{:., _, [{:__aliases__, _, mod_list}, name]}, _, _}) do
full([full(mod_list), name])
end
def full({:@, _, [{name, _, nil}]}) when is_atom(name) do
"@#{name}"
end
def full({:unquote, _, [{name, _, nil}]}) when is_atom(name) do
"unquote(#{name})"
end
def parts_count(module_name) do
module_name
|> String.split(".")
|> length
end
def pascal_case?(name) do
String.match?(name, ~r/^[A-Z][a-zA-Z0-9]*$/)
end
def split_pascal_case(name) do
name
|> String.replace(~r/([A-Z])/, " \\1")
|> String.split()
end
def snake_case?(name) do
String.match?(name, ~r/^[a-z0-9\_\?\!]+$/)
end
def no_case?(name) do
String.match?(name, ~r/^[^a-zA-Z0-9]+$/)
end
defp name_from_splitted_parts(parts) when length(parts) > 1 do
parts
|> Enum.slice(1, length(parts))
|> Enum.join(".")
end
defp name_from_splitted_parts(parts) do
Enum.join(parts, ".")
end
end