posexional v0.1.1 Posexional.Row
this module represent a row in a positional file
Summary
Functions
finds a field in the row by its name
calculate the row total length based on the passed fields
read a positional file row and convert it back to a keyword list of values
outputs a row
Functions
Specs
add_field(%Posexional.Row{fields: term, name: term, row_guesser: term, separator: term}, struct) :: %Posexional.Row{fields: term, name: term, row_guesser: term, separator: term}
Specs
add_fields(%Posexional.Row{fields: term, name: term, row_guesser: term, separator: term}, []) :: %Posexional.Row{fields: term, name: term, row_guesser: term, separator: term}
Specs
find_field(%Posexional.Row{fields: term, name: term, row_guesser: term, separator: term}, atom) :: %Posexional.Field.Value{alignment: term, filler: term, name: term, size: term}
finds a field in the row by its name
Examples
iex> Posexional.Row.new(:row_test, []) |> Posexional.Row.find_field(:test)
nil
iex> Posexional.Row.new(:row_test, [Posexional.Field.Value.new(:test, 5)]) |> Posexional.Row.find_field(:test)
Posexional.Field.Value.new(:test, 5)
iex> Posexional.Row.new(:row_test, [Posexional.Field.Value.new(:test, 5), Posexional.Field.Value.new(:test2, 5)])
...> |> Posexional.Row.find_field(:test2)
Posexional.Field.Value.new(:test2, 5)
Specs
length(%Posexional.Row{fields: term, name: term, row_guesser: term, separator: term}) :: integer
calculate the row total length based on the passed fields
Examples
iex> Posexional.Row.new(:row_test, [])
...> |> Posexional.Row.length
0
iex> Posexional.Row.new(:row_test, [Posexional.Field.Value.new(:test1, 10), Posexional.Field.Value.new(:test2, 20)])
...> |> Posexional.Row.length
30
Specs
manage_counters(%Posexional.Row{fields: term, name: term, row_guesser: term, separator: term}, [{atom, pid}]) :: %Posexional.Row{fields: term, name: term, row_guesser: term, separator: term}
Specs
new(atom, [], Keyword.t) :: %Posexional.Row{fields: term, name: term, row_guesser: term, separator: term}
Specs
read(%Posexional.Row{fields: term, name: term, row_guesser: term, separator: term}, binary) :: Keyword.t
read a positional file row and convert it back to a keyword list of values
Specs
write(%Posexional.Row{fields: term, name: term, row_guesser: term, separator: term}, Keyword.t) :: {atom, binary}
outputs a row
Examples
iex> Posexional.Row.new(:row_test, []) |> Posexional.Row.write([test: "test"])
{:ok, ""}
iex> Posexional.Row.new(:row_test, [Posexional.Field.Value.new(:test1, 5), Posexional.Field.Value.new(:test2, 10)])
...> |> Posexional.Row.write([test1: "test1", test2: "test2"])
{:ok, "test1test2 "}
iex> Posexional.Row.new(:row_test, [Posexional.Field.Value.new(:test1, 5), Posexional.Field.Value.new(:test2, 10)])
...> |> Posexional.Row.write([test1: "test1", non_existent: "test2"])
{:ok, "test1 "}
iex> Posexional.Row.new(:row_test, [Posexional.Field.Value.new(:test1, 6)])
...> |> Posexional.Row.write([test1: "test1", not_configured: "test2"])
{:ok, "test1 "}
iex> Posexional.Row.new(:row_test, [Posexional.Field.Value.new(:test1, 5)])
...> |> Posexional.Row.write([not_configured: "test2", another: "test3"])
{:ok, " "}
iex> Posexional.Row.new(:row_test, [Posexional.Field.Empty.new(5)])
...> |> Posexional.Row.write([])
{:ok, " "}