u/arthurgleckler

Scheme Request for Implementation 273,
"Extensions to Data (Type-)Checking",
by Artyom Bologov,
is now available for discussion.

Its draft and an archive of the ongoing discussion are available at https://srfi.schemers.org/srfi-273/.

You can join the discussion of the draft by filling out the subscription form on that page.

You can contribute a message to the discussion by sending it to srfi-273@srfi.schemers.org.

Here's the abstract:

>

Regards,

SRFI Editor

Scheme Request for Implementation 272,
"Pretty Printing",
by Sergei Egorov,
is now available for discussion.

Its draft and an archive of the ongoing discussion are available at https://srfi.schemers.org/srfi-272/.

You can join the discussion of the draft by filling out the subscription form on that page.

You can contribute a message to the discussion by sending it to srfi-272@srfi.schemers.org.

Here's the abstract:

>This SRFI follows the traditional Scheme model of pretty printing, which treats it as a process distinct from general controlled formatting. While general-purpose formatters often prioritize specialized presentation at the expense of machine-readability, Scheme’s pretty-printers (such as those of SLIB and MIT Scheme) have traditionally treated pretty printing as a variant of write, differing primarily in the insertion of whitespace to make the presentation more palatable to humans. Common Lisp’s pretty-printer, by contrast, fills two roles simultaneously by integrating pretty printing with both its format facility and its generalized write procedures. This unified approach offers great power, but at the cost of complexity that can make it difficult to use effectively. We propose a specialized, layered approach, specifying five libraries of increasing functionality, where all but the first are optional. The libraries are downward-compatible: more powerful libraries satisfy all requirements of the simpler ones while adding new features. Implementors may choose to support a maximum level of functionality appropriate for their systems. Integration with monadic and string-based formatting libraries is supported.

Regards,

SRFI Editor

Scheme Request for Implementation 271,
"Random port libraries",
by Wolfgang Corcoran-Mathe,
is now available for discussion.

Its draft and an archive of the ongoing discussion are available at https://srfi.schemers.org/srfi-271/.

You can join the discussion of the draft by filling out the subscription form on that page.

You can contribute a message to the discussion by sending it to srfi-271@srfi.schemers.org.

Here's the abstract:

>

Regards,

SRFI Editor

Scheme Request for Implementation 270,
"Hexadecimal Floating-Point Constants",
by Peter McGoron,
is now available for discussion.

Its draft and an archive of the ongoing discussion are available at https://srfi.schemers.org/srfi-270/.

You can join the discussion of the draft by filling out the subscription form on that page.

You can contribute a message to the discussion by sending it to srfi-270@srfi.schemers.org.

Here's the abstract:

>

Regards,

SRFI Editor

Scheme Request for Implementation 267,
"Raw String Syntax",
by Peter McGoron,
has gone into final status.

The document and an archive of the discussion are available at https://srfi.schemers.org/srfi-267/.

Here's the abstract:

>

Here is the commit summary since the most recent draft:

• Update abstract.
• Add missing quotation marks.
• copy edits in copyright notice
• Link to repo for access to sample implementation.
• Add <h2> IDs per template.
• Fix broken link. Avoid redirect.
• Finalize.

Here are the diffs since the most recent draft:

>https://github.com/scheme-requests-for-implementation/srfi-267/compare/draft-5..final

Many thanks to Peter and to everyone who contributed to the discussion of this SRFI.

Regards,

SRFI Editor