Dazzle Core

Core library for Dazzle: Scheme interpreter (ported from OpenJade), DSSSL engine, and trait definitions for groves and backends.

Architecture

Dazzle follows OpenJade's clean separation:

• grove: Trait definitions for document tree abstraction (like OpenJade's grove/)
• fot: Trait definitions for flow object tree backends (like OpenJade's FOTBuilder)
• scheme: Scheme interpreter (ported from OpenJade's style/)
  • value: Scheme value types (ELObj equivalent)
  • parser: S-expression parser (SchemeParser.cxx equivalent)
  • interpreter: Evaluator and environment (Interpreter.cxx equivalent)
  • primitives: All 236 DSSSL primitives (primitive.cxx equivalent)
• dsssl: DSSSL style engine (processing modes, rules, etc.)

Design Principles

1. Trait-based abstraction: Groves and backends are defined as traits, allowing multiple implementations without coupling to the interpreter.

2. Faithful port: Preserves OpenJade's proven design and performance optimizations (instruction-based evaluation, string interning, lazy node lists).

3. 100% compatibility: All valid R4RS/DSSSL code that works in OpenJade works in Dazzle without modification.