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21 lines
848 B
Markdown
21 lines
848 B
Markdown
---
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layout: post
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title: Released Cyclone Scheme 0.7.1
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excerpt: This release improves support for macros by (finally) including `let-syntax` and `letrec-syntax` as well as enhancing `eval` to allow defining `syntax-rules` macros. The release also adds a few minor features from R7RS that had been missing.
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---
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Features
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- Added support for `let-syntax` and `letrec-syntax`.
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- Added the `(scheme repl)` library and `interaction-environment` function from R7RS.
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- Allow `eval` to recognize `syntax-rules` macros.
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- Added single-byte oriented I/O functions `read-u8`, `peek-u8`, and `write-u8` from R7RS.
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Internal Changes
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- Relocated all macro expansion code to the `(scheme eval)` module. Cyclone's `(scheme cyclone macros)` library is now obsolete.
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Bug Fixes
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- Added the `full-unicode` feature since Unicode is supported as of the 0.7 release.
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