Standard Procedure Support

This document lists a high-level overview of Feersum’s support for the R7RS standard procedures:

• Standard Procedure Support
  • Equivalence Predicates
  • Numbers
  • Booleans
  • Pairs and Lists
  • Symbols
  • Characters
  • Strings
  • Vectors
  • Bytevectors
  • Control Features
  • Exceptions
  • Environments and Evaluation
  • Input and Output
  • System Interface

Equivalence Predicates

All Equivalence predicates are fully supported.

Numbers

Some numeric literals are supported. A subset of the numeric operations are supported. Things generally conform to the numeric tower with only inexact IEE double precision floats as supported numeric value types.

Booleans

Boolean literals and procedures are fully supported.

Pairs and Lists

Pairs and lists are supported. Some core procedures, such as cons and list are supported.

Symbols

Symbol literals are fully supported. All symbol procedures are supported.

Characters

Character literals are supported, with Unicode support limited to utf-16 code units. No Character procedures are implemented.

Strings

String literals are supported. Unicode character escapes are limited to utf-16 code units. No string procedures are implemented.

Vectors

Vector literals and some core vector procedures are supported.

Bytevectors

Byte vector literals and some core byte vector procedures are supported.

Control Features

No control procedures are supported.

Exceptions

Some core library procedures may throw exceptions. The guard form is not supported. There is no ability to throw exceptions from Scheme code yet.

Environments and Evaluation

No support for dynamic evaluation is provided outside the built-in REPL.

Input and Output

The display and newline procedures are the only supported IO procedures.

System Interface

None of the system interface is supported.