Changelog

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All notable changes to this project are documented here. The format follows Keep a Changelog and the project uses Semantic Versioning.

[Unreleased]

[0.1.0]

Added

  • JSON, TOML (TOML 1.0.0), and single-document YAML codecs with a documented portable value domain, duplicate-key rejection, and strict encoding that rejects unrepresentable values.
  • Formata.convert/4 with explicit transformations (Formata.Transform).
  • Native schemas (Formata.Backplane.Schema) with pure validation (validate/3) over a checked non-transforming subset, unknown-field allow/reject, and full casting (cast/3) with defaults, coercion, transforms, and stripping.
  • JSON Schema Draft 7 and Draft 2020-12 with dialect selection, local references, explicit remote loaders, and configurable format assertion.
  • Structured Formata.Error values for parse, encode, schema, validation, transform, and unsupported-operation failures.
  • No runtime dependencies: the backends are maintained forks of jason 1.4.5, gsmlg_toml 1.0.0, yaml_elixir 2.12.2, yamerl 0.10.0, ymlr 5.1.6, backplane_schema 1.10.76, backplane_json_schema 1.10.76, and ex_json_pointer 0.9.0, renamed into the Formata namespace (see NOTICE.md), with their upstream test suites ported.
  • Conformance suites in the test run: toml-test 1.0.0 (208 valid, 509 invalid) and the required JSON-Schema-Test-Suite cases for Draft 7 and Draft 2020-12.

Changed in the forked backends (relative to the upstream releases)

  • TOML decoder: offset date-times decode to the correct instant (gsmlg-dev/gsmlg_umbrella#13); empty array-of-tables elements and their subtables are kept (#14); true/false are valid bare keys (#15); local date-times may be followed by , (#16). It now passes the full toml-test 1.0.0 suite, including TOML 1.0 table-redefinition and inline-table rules, string escapes and line-ending backslashes, and lowercase t/z in date-times. Invalid UTF-8 and malformed \U escapes return parse errors instead of crashing the caller; -nan decodes to :nan.
  • JSON Schema: format is an annotation by default when $schema is absent (gsmlg-opt/backplane#170); error paths render integer segments and escape ~// (#172); multipleOf is exact and never raises; IDN-dependent hostname/email checks report :unsupported_format instead of raising; opaque base URIs (urn:) resolve references on Elixir 1.18.
  • Native schemas: permissive mode no longer duplicates fields under atom keys (gsmlg-opt/backplane#171), so cast(..., unknown: :allow) works for atom-keyed schemas over string-keyed data.
  • Optional Decimal/:idna integrations, application environment, and yamerl's application/supervisor are removed.