Module report 

Render candidate groups as text (colored) or json, with identical structure.

Tiers are reported independently (a duplicate that holds under several tiers appears once per section) — there is no cross-tier dedup. JSON lives in the library core (serde_json is always available); the colored text renderer is behind the cli feature, alongside the colored dependency it needs.

JSON schema

{
  "groups": [
    {
      "tier": "exact",
      "agree_locales": 3,
      "total_locales": 3,
      "cross_domain": false,
      "keys": [{"domain": "messages", "msgctxt": null,
                "msgid": "Save", "msgid_plural": null}],
      "shared": {"en": "Save", "ru": "Сохранить"},
      "differ": []
    }
  ],
  "summary": {"groups": 1, "keys": 120, "candidate_keys": 2}
}

Functions

to_json

Serialize groups to pretty JSON. total_keys is the number of keys examined (the summary denominator). Order is preserved as given (deterministic).

to_text

Render groups as colored text: a section per tier (exact→normalized→fuzzy), within each ordered by match level; a footer summary. Empty cell under own shows as ∅; cross-domain groups carry a unify hint.