v0.13.0

0.13.0 (2026-11-02)

Added

• muniMeasureUtf8 finds the longest prefix of UTF-8 text that ends at
  a boundary of a muniTextUnit and holds at most maxBytes bytes and
  at most maxUnits units, and gives its length in bytes and in units;
  either output may be NULL. It turns a byte offset into a count of
  units, turns a count of units into a byte offset, cuts text to fit a
  buffer, and counts the grapheme clusters of a whole text or finds
  where a count of them ends. A limit that falls inside a code point or
  a cluster ends the prefix at the boundary before it, and a count of
  UTF-16 units that falls inside a surrogate pair ends it before the
  pair. A call that fits whole and asks for no count does not walk the
  text
  (#243).
• muni_unitUtf16, a new muniTextUnit, counts UTF-16 units: one for
  a code point up to U+FFFF, two for one past it, and one for a maximal
  ill-formed subpart, as its U+FFFD. With muniMeasureUtf8 it maps
  UTF-8 byte offsets to the UTF-16 offsets that AppKit, UIKit and
  Android take, and back
  (#243).

Changed

• Breaking: on muni_errorCapacity, muniConvertUtf8ToUtf16,
  muniConvertUtf16ToUtf8, muniConvertUtf8ToUtf32 and
  muniConvertUtf32ToUtf8 give the input offset of the first code
  point not written, instead of the input length. The output holds the
  conversion of the input before that offset, always whole code points,
  and neededOut still counts the whole conversion. A caller can keep
  what was written, or convert the rest from the offset, instead of
  converting again with less input until it fits. A strict-mode error
  after the output filled up still returns that error and its offset.
  Code that read the input length from the offset on
  muni_errorCapacity uses its own length
  (#241).

Removed

• Breaking: muniCutUtf8 is removed. muniMeasureUtf8 with
  maxUnits set to SIZE_MAX gives the same cut; the unit now comes
  before the byte limit. No consumer called it
  (#243).

  0.12.0	0.13.0
  muniCutUtf8(text, length, budget, unit, &cut)	muniMeasureUtf8(text, length, unit, budget, SIZE_MAX, &cut, NULL)