View Source Ymlr (ymlr v5.1.3)

Encodes data into YAML documents using the Ymlr.Encoder protocol. Every document starts with a separator ("---") and can be enhanced with comments.

Summary

Functions

Encodes a given data as YAML document with a separator ("---") at the beginning.

Encodes a given data as YAML document with a separator ("---") at the beginning. Raises if it cannot be encoded.

Encodes a given list of data as "---" separated YAML documents.

Encodes a given list of data as "---" separated YAML documents. Raises if it cannot be encoded.

Types

@type document() :: term() | {binary(), term()} | {[binary()], term()}

Functions

Link to this function

document(document, opts \\ [])

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@spec document(document(), opts :: Ymlr.Encoder.opts()) ::
  {:ok, binary()} | {:error, binary()}

Encodes a given data as YAML document with a separator ("---") at the beginning.

Optinally you can pass a tuple with comment(s) and data as first argument.

Options

  • atoms - when set to true, encodes atom map keys with a leading colon.
  • sort_maps - when set to true, sorts map by key-values.

Examples

iex> Ymlr.document(%{a: 1})
{:ok, "---\na: 1\n"}

iex> Ymlr.document(%{a: 1}, atoms: true)
{:ok, "---\n:a: 1\n"}

iex> Ymlr.document({"comment", %{a: 1}})
{:ok, "---\n# comment\na: 1\n"}

iex> Ymlr.document({["comment 1", "comment 2"], %{a: 1}})
{:ok, "---\n# comment 1\n# comment 2\na: 1\n"}

iex> Ymlr.document(Map.new(1..33, &{&1, &1}), sort_maps: true)
{:ok, "---\n1: 1\n2: 2\n3: 3\n4: 4\n5: 5\n6: 6\n7: 7\n8: 8\n9: 9\n10: 10\n11: 11\n12: 12\n13: 13\n14: 14\n15: 15\n16: 16\n17: 17\n18: 18\n19: 19\n20: 20\n21: 21\n22: 22\n23: 23\n24: 24\n25: 25\n26: 26\n27: 27\n28: 28\n29: 29\n30: 30\n31: 31\n32: 32\n33: 33\n"}
Link to this function

document!(document, opts \\ [])

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@spec document!(document(), opts :: Keyword.t()) :: binary()

Encodes a given data as YAML document with a separator ("---") at the beginning. Raises if it cannot be encoded.

Optinally you can pass a tuple with comment(s) and data as first argument.

Options

  • atoms - when set to true, encodes atom map keys with a leading colon.
  • sort_maps - when set to true, sorts map by key-values.

Examples

iex> Ymlr.document!(%{a: 1})
"---\na: 1\n"

iex> Ymlr.document!(%{a: 1}, atoms: true)
"---\n:a: 1\n"

iex> Ymlr.document!({"comment", %{a: 1}})
"---\n# comment\na: 1\n"

iex> Ymlr.document!({["comment 1", "comment 2"], %{a: 1}})
"---\n# comment 1\n# comment 2\na: 1\n"

iex> Ymlr.document!(Map.new(1..33, &{&1, &1}), sort_maps: true)
"---\n1: 1\n2: 2\n3: 3\n4: 4\n5: 5\n6: 6\n7: 7\n8: 8\n9: 9\n10: 10\n11: 11\n12: 12\n13: 13\n14: 14\n15: 15\n16: 16\n17: 17\n18: 18\n19: 19\n20: 20\n21: 21\n22: 22\n23: 23\n24: 24\n25: 25\n26: 26\n27: 27\n28: 28\n29: 29\n30: 30\n31: 31\n32: 32\n33: 33\n"
Link to this function

documents(documents, opts \\ [])

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@spec documents([document()], opts :: Ymlr.Encoder.opts()) ::
  {:ok, binary()} | {:error, binary()}

Encodes a given list of data as "---" separated YAML documents.

Options

  • atoms - when set to true, encodes atom map keys with a leading colon.
  • sort_maps - when set to true, sorts map by key-values.

Examples

iex> Ymlr.documents([%{a: 1}])
{:ok, "---\na: 1\n"}

iex> Ymlr.documents([%{a: 1}], atoms: true)
{:ok, "---\n:a: 1\n"}

iex> Ymlr.documents([%{a: 1}, %{b: 2}])
{:ok, "---\na: 1\n\n---\nb: 2\n"}

iex> Ymlr.documents(%{a: "a"})
{:error, "The given argument is not a list of documents. Use document/1, document/2, document!/1 or document!/2 for a single document."}
Link to this function

documents!(documents, opts \\ [])

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Encodes a given list of data as "---" separated YAML documents. Raises if it cannot be encoded.

Options

  • atoms - when set to true, encodes atom map keys with a leading colon.
  • sort_maps - when set to true, sorts map by key-values.

Examples

iex> Ymlr.documents!([%{a: 1}])
"---\na: 1\n"

iex> Ymlr.documents!([%{a: 1}], atoms: true)
"---\n:a: 1\n"

iex> Ymlr.documents!([%{a: 1}, %{b: 2}])
"---\na: 1\n\n---\nb: 2\n"

iex> Ymlr.documents!(%{a: "a"})
** (ArgumentError) The given argument is not a list of documents. Use document/1, document/2, document!/1 or document!/2 for a single document.