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Design of SigScheme
===================
Purposes
--------
- Embedded into an application
- Suitable for embedded platforms (i.e. non-desktop {OS,hardware})
Requirements
------------
- 3-clause BSD license
- Basic R5RS conformance
- Small footprint
- Low memory consumption
- Highly modular and customizable
- Code readability to enable learning Scheme by implementation
- Easily extensible by C
Code organization
-----------------
- Memory allocators
- Exception and error handling
- Storage Abstraction Layer
- Continuation
- Environment
- Procedures and syntaxes
- Reader
- Writer
- Multibyte character processing
- Ports
Trade-offs
----------
- Strict form validation
- Multibyte string processing
- Function aggregation to share prolog/epilog code fragment
API and ABI
-----------
- ABI incompatibility between configurations
- SAL and ABI
- Dynamic link
- Static link
- Writing an extension by C
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