The recur Reference Manual

Table of Contents

The recur Reference Manual

This is the recur Reference Manual, generated automatically by Declt version 3.0 "Montgomery Scott" on Mon Apr 19 17:37:19 2021 GMT+0.

1 Introduction

                                RECUR

               A simple library for Scheme's named LET.


RECUR is a simple Lisp alternative Scheme's "named-LET". Scheme allows
one to iterate like the following:

(define (factorial n)
  (let fact ((n    n)
             (prod 1))
    (if (zero? n)
        prod
        (fact (- n 1)
              (* n prod)))))

This is a useful idiom for Lisp as well. With this library, it is written

(defun factorial (n)
  (recur fact ((n    n)
               (prod 1))
    (if (zerop n)
        prod
        (fact (1- n)
              (* n prod)))))          

This library exports a single macro, RECUR:RECUR, which is a
replacement for Scheme's named-LET. The only caveat is that tail
recursion is not strictly supported, though many implementations do
support it (with some combination of OPTIMIZE declarations).

2 Systems

The main system appears first, followed by any subsystem dependency.

2.1 recur

Author

Robert Smith <quad@symbo1ics.com>

License

Public Domain. See LICENSE.

Description

A simple alternative to Scheme’s named-LET.

Source

recur.asd (file)

Components

• package.lisp (file)
• recur.lisp (file)

3 Files

Files are sorted by type and then listed depth-first from the systems components trees.

3.1 Lisp

3.1.1 recur.asd

Location

recur.asd

Systems

recur (system)

3.1.2 recur/package.lisp

Parent

recur (system)

Location

package.lisp

Packages

recur

3.1.3 recur/recur.lisp

Dependency

package.lisp (file)

Parent

recur (system)

Location

recur.lisp

Exported Definitions

recur (macro)

4 Packages

Packages are listed by definition order.

4.1 recur

Source

package.lisp (file)

Use List

common-lisp

Exported Definitions

recur (macro)

5 Definitions

Definitions are sorted by export status, category, package, and then by lexicographic order.

5.1 Exported definitions

5.1.1 Macros

Macro: recur NAME (&rest BINDINGS) &body BODY

A macro imitating Scheme’s named-LET.

Package

recur

Source

recur.lisp (file)

Appendix A Indexes

A.1 Concepts

A.2 Functions

A.3 Variables

A.4 Data types