Procedural Fascicle, Draft #1

The first draft of the "Procedural Fascicle," part two of the R7RS-Large Foundations, has been released by Working Group 2, covering familiar block programming forms like `lambda`, `let`, `if`, `or`, and `set!`. Its major new feature allows mixing definitions and expressions within bodies, such as in a `lambda`. The working group invites public comments on the draft.

Working Group 2 is pleased to announce the first draft of the second part of the R7RS-Large Foundations, the Procedural Fascicle". This draft encompasses the familiar block programming forms, such as lambda , let , if , or , and set . The draft is available here: https://r7rs.org/large/fascicles/proc/ The biggest new feature is the ability to mix definitions and expressions in bodies, such as the body of a lambda . For example, the following is now valid: define map f lst unless list? lst error 'map "not a list" lst define map lst acc if null? lst reverse acc map cdr lst cons f car lst acc map lst ' We welcome any and all comments on the draft. Anyone can comment by