v2.0.0 - CDL v2.0

CDL v2.0 - Major Release

New Features

• Amorphous materials: amorphous[subtype]:{shapes} syntax for non-crystalline materials (opal, obsidian, pearl, etc.)
• Nested growth: > operator for overgrowth/phantom relationships (right-associative)
• Aggregates: ~ operator for crystal clusters, druse linings, parallel growth (6 arrangement types)
• Group-level twins: | twin(law) on individual form groups within expressions
• Feature definitions: Edge case handling for @feat = [feature:value] definitions

New Models

• AmorphousDescription - for non-crystalline materials
• NestedGrowth - overgrowth relationships
• AggregateSpec - crystal aggregate arrangements

New Constants

• AMORPHOUS_SUBTYPES: opalescent, glassy, waxy, resinous, cryptocrystalline
• AMORPHOUS_SHAPES: massive, botryoidal, reniform, stalactitic, mammillary, nodular, conchoidal
• AGGREGATE_ARRANGEMENTS: parallel, random, radial, epitaxial, druse, cluster
• AGGREGATE_ORIENTATIONS: aligned, random, planar, spherical

Breaking Changes

• parse_cdl() now returns CrystalDescription | AmorphousDescription (union type)
• FormNode type expanded: CrystalForm | FormGroup | NestedGrowth | AggregateSpec
• FormGroup gains optional twin: TwinSpec | None field

Tests

• 239 tests (was 163, +76 new)

v1.3.0

CDL Parser v1.3.0 - Composition & Structure

New Features

• Form grouping with parenthesized expressions: ({111} + {100})[phantom:3]
• Form labels for documenting form purpose: prism:{10-10}@1.0
• Named definitions with @name = expression and $name references
• flat_forms() method for backwards-compatible flat form list extraction
• FormGroup and FormNode types for tree-structured AST

Breaking Changes

• CrystalDescription.forms type changed from list[CrystalForm] to list[FormNode]
• Use desc.flat_forms() for backwards-compatible access

Bug Fixes

• Fixed ruff lint errors (UP007, F401)
• Fixed mypy type errors in parser and CLI
• Applied ruff formatting

v1.0.1

Bug fixes and CI improvements

v1.0.0

Initial release of gemmology-cdl-parser.

Features

• Crystal Description Language (CDL) parser with zero dependencies
• Support for all 7 crystal systems and 32 point groups
• Miller index notation (3-index {hkl} and 4-index {hkil})
• Form combinations with scaling factors
• Modifications (truncation, beveling, etc.)