Changelog

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v1.1.0 (2026-05-08)

Added

  • Support for OTP 27+ triple-, quadruple-, and quintuple-quoted strings, including the matching sigil delimiters.
  • Support for OTP 27 underscore separators in numeric literals (1_000_000, 16#FF_FF, 0.1_5e1_0).
  • Support for OTP 25/27 ?= maybe-match operator as a single token.
  • Support for OTP 29 native records, including the external #Module:Name{...} / #Module:Name.field forms and variable-shape / keyword record names (#State{}, #case{}, #fun{}).
  • Distinct token for parameterised macro calls (?FOO(args) → :name_function) versus parameterless macro references (?FOO → :name_constant).
  • :string_escape sub-tokens emitted inside plain double-quoted strings (previously only emitted inside triple-quoted strings).
  • Multi-character escape sequences ($\xFF, $\x{1F600}, $\077, $\^A) in $\... character literals tokenised as a single escape.
  • Underscore-prefixed identifiers (_5, _X, _unused) lex as a single :name variable rather than _ + integer/name.

Changed

  • BIF list is now generated at compile time from erl_internal:bif/2, keeping the recognised builtins in sync with the OTP version makeup_erlang is compiled against. Adds 30+ post-OTP-19 BIFs and fixes one stale typo. Closes #13.
  • Reserved words written adjacent to ( (e.g. fun(X)) are recovered as :keyword instead of misclassified :name_function.
  • Erlang shell prompts (1> ...) are detected after multi-line whitespace blocks, not only after a single immediate \n.

v1.0.3

  • Do not tag newlines before prompts as unselectable.
  • LICENSE and CI housekeeping.

v1.0.2

Added

  • Support for strict generators in comprehensions.
  • Support for parallel comprehensions.
  • Group handling for binaries.
  • Elixir 1.18 and Erlang 27 in the CI matrix.
  • Tests for list and binary comprehensions.

v1.0.1

  • Parse tabs correctly (#29).

v1.0.0

  • Properly deal with unicode characters in $ character literals.
  • Fix publishing and generation of docs.

v0.1.5

  • Highlight errors in shell examples correctly.

v0.1.4

  • Support for maybe ... end expressions.
  • Support for triple-quoted strings and sigils.
  • CI updates.

v0.1.3

  • Support for the Erlang shell prompt (1> ...) (#24).
  • Use the SPDX-conformant license name.
  • Run mix format over the codebase.

v0.1.2

  • Require Elixir 1.6 or newer (#17).
  • Drop unused assert_value dependency (#18).
  • Remove @inline annotations (#22).
  • CI configuration cleanup.

v0.1.1

Initial public release.

  • Tokenisation of module attributes (with optional parentheses), atoms, binary syntax, charlists, escaped characters, operators and punctuation.
  • Tokenisation of records: creation, access, and update.
  • Tokenisation of qualified function calls — module name tagged as :name_class.
  • Combinator for function/arity syntax (fun/N).
  • Registers itself as a Makeup lexer on application boot.