Convert between Dhall and YAML.

Use this package if you want to convert between Dhall expressions and YAML. You can use this package as a library or an executable:

• See the Dhall.Yaml module if you want to use this package as a library

• Use the dhall-to-yaml-ng program from this package if you want an executable

dhall-yaml

For installation or development instructions, see:

• dhall-haskell - README

Full documentation here:

• dhall-yaml instructions

Introduction

This dhall-yaml package provides a Dhall to YAML compiler, dhall-to-yaml-ng, and a tool for deriving Dhall from YAML code: yaml-to-dhall.

Note that the dhall-json package also provides a dhall-to-yaml executable. Currently, the behavior of the dhall-to-yaml and dhall-to-yaml-ng executables should not differ much, but eventually the dhall-to-yaml-ng executable should be able to support greater functionality due to using the HsYAML package as an intermediate step in the transformation process.

Tutorials for the analogous JSON tools are available in the dhall-json package:

• dhall-to-json

• json-to-dhall

Example

$ dhall-to-yaml-ng <<< "{ foo = [1, 2, 3], bar = { baz = True } }" > example.yaml
$ cat example.yaml
bar:
  baz: true
foo:
- 1
- 2
- 3
$ yaml-to-dhall '{ foo : List Natural, bar : { baz : Bool } }' < example.yaml
{ bar = { baz = True }, foo = [ 1, 2, 3 ] }