zeekayandHanzo Dev 997e8a55bf normalize: read dates, numbers, quantities and money, and refuse what is ambiguous ...

The package comment named Entity, Date, Number, Measure and Rows, none of
which existed. Four kinds now do, each a Kind[T]: Parse reads text under an
Anchor, Canon writes the one canonical form, and every Kind is also a
Datatype for code that holds several side by side.

- Date reads into a half-open Span with a Grain: "March 2023" is
  [2023-03-01, 2023-04-01). Relative dates count from Anchor.At, the
  source's own date; nothing calls time.Now.
- Number reads exactly into a big.Rat; Quantity adds a unit, folded to its
  symbol only where the word has one meaning; Money adds an ISO 4217 code.

What the text leaves open is refused with ErrAmbiguous, never guessed: day
and month with no Anchor.Order, a clock time with no offset or Anchor.Zone,
or one a zone repeats, "1,234" with no Anchor.Point, a two-digit year, and a
sign several currencies write. One generic test holds Canon∘Parse
idempotent for every kind.

The package comment now names what is there, and the normalize example
shows the kinds.

Co-authored-by: Hanzo Dev <[email protected]>

2026-09-23 00:35:46 -07:00

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normalize: read dates, numbers, quantities and money, and refuse what is ambiguous

2026-09-23 00:35:46 -07:00