0.3.0

Breaking

• EvalErrorKind::InvalidBuiltInFuncArgType has been renamed to
  EvalErrorKind::InvalidStdFuncArgType.
• New variants have been added to EvalErrorKind.
• New variants have been added to EvalStackTraceItem.
• ExpectedThing as been renamed to ExpectedToken.
• ParseError::Expected now uses ActualToken instead of TokenKind.
• Arena allocation is now used for interned strings, AST and some internal data
  of Program.
• String interner cannot be garbage-collected anymore.

Fixed

• Reject tags in object keys in std.parseYaml.
• Avoid some panics in std.parseYaml with some inputs found with fuzzing.
• Avoid stack overflow when dropping expressions with too much nesting.

Changed

• Improved error message when passing a value of invalid type to a built-in function.
• Stack trace improvements.
• Performance improvements.

0.2.0

Breaking

• Some semantics of std.parseYaml have changed:
  • Empty YAML documents are now parsed as null instead of an empty string.
  • Anchors and aliases are now supported.
  • Null, NULL and ~ are now parsed as null.
  • True and TRUE are now parsed as true .
  • False and FALSE are now parsed as false.
  • Leading or trailing dot (e.g., .5 or 1.) is now allowed in floating
    point numbers.
  • Explicit + is now allowed in floating point numbers.
  • Leading zeros are now allowed in floating point numbers.
  • Octal and hexadecimal intergers are now parsed as numbers.

Fixed

• Detect stack overflow while comparing arrays and objects.
• Detect stack overflow while converting arrays and objects to string.
• Avoid panic when encountering an array or object as object key in
  std.parseYaml.
• Avoid panic when encountering a YAML alias in std.parseYaml.
• Return character indices instead of UTF-8 byte indices in std.findSubstr.
• Avoid panic when the first character of the pattern passed to std.findSubstr
  is not ASCII.

0.1.2

Fixed

• Avoid panic if the array passed to std.format does not have enough items.

0.1.1

Changed

• When a stack trace is larger than the specified maximum, hide items in the
  middle instead of the end.
• Documentation improvements.

Fixed

• Do not use f64::log2 to implement std.exponent and std.mantissa, which
  can be too inaccurate in some platforms.
• Errors will not show <000D> at the end of each source line when source has
  CRLF line endings.

0.1.0

First release