v1.1.0

Minor Changes

• c557ac0: feat: Add support for BC dates (negative years in ISO 8601)

  Implement parsing and stringification of BC dates using ISO 8601 extended year format with negative year numbers. This follows the astronomical year numbering system where year 0 = 1 BC, year -1 = 2 BC, etc.

  Key features:

  • Parse BC dates with negative year notation: -0044-03-15 (44 BC)
  • Support year 0 representing 1 BC: 0000-01-01
  • Handle BC dates with time and timezone components
  • Proper year padding in output: -0044, -0001
  • Full round-trip compatibility

  Supported formats:

  • BC year only: -0100
  • BC year-month: -0753-04
  • BC full date: -0044-03-15
  • BC datetime: -0044-03-15T12:00:00
  • BC with timezone: -0044-03-15T12:00:00Z

  Examples:

  // Parse the Ides of March, 44 BC
  const bcDate = parseTemporal("-0044-03-15");
  // { kind: 'DateTime', date: { year: -44, month: 3, day: 15 }, ... }
  
  // Stringify BC date
  stringifyDate({ kind: "Date", year: -44, month: 3, day: 15 });
  // Returns: '-0044-03-15'
  
  // Year 0 represents 1 BC in ISO 8601
  parseTemporal("0000-01-01");
  // { kind: 'DateTime', date: { year: 0, month: 1, day: 1 }, ... }

  This implementation maintains full backward compatibility and follows ISO 8601:2004 extended year format specification.

• 7223124: feat: add comprehensive stringify API for AST serialization

  Add comprehensive stringify API for AST serialization. Implements full round-trip serialization support by converting parsed temporal ASTs back to ISO 8601/IXDTF formatted strings.

  New exports:

  • stringifyTemporal() - Main function for all temporal types
  • stringifyDate(), stringifyTime(), stringifyDateTime() - DateTime components
  • stringifyDuration(), stringifyRange() - Duration and Range types
  • stringifyOffset(), stringifyTimeZone(), stringifyAnnotation() - Supporting components

  Features:

  • Automatic normalization of offsets to canonical format (±HH:MM)
  • Component-based reconstruction for consistent output
  • Full round-trip compatibility with parser
  • Preserves all AST information including annotations and critical flags

  Example:

  import { parseTemporal, stringifyTemporal } from "@taskade/temporal-parser";
  
  const ast = parseTemporal("2025-01-12T10:00:00+0530"); // Compact format
  const normalized = stringifyTemporal(ast);
  // '2025-01-12T10:00:00+05:30' (canonical format)

Patch Changes

• 692b0f7: fix: Support comma as decimal separator in fractional seconds (European format)

  Add support for comma (,) as a decimal separator in fractional seconds for both time and duration components, as specified in ISO 8601. This enables parsing of European-formatted temporal strings while maintaining canonical dot (.) notation in serialized output.

  Supported formats:

  • Time with fractional seconds: T10:30:45,123 → T10:30:45.123
  • Duration with fractional seconds: PT1,5S → PT1.5S

  Behavior:

  • Parser accepts both . and , as decimal separators
  • Stringify normalizes all output to use . for consistency
  • Full round-trip compatibility maintained

  This change improves ISO 8601 compliance and enables parsing of temporal strings from European locales where comma is the standard decimal separator.