ESLXXXX - LEP Template

Field	Value
Author(s)	{(co)author name(s)}
Reviewer(s)	{reviewer(s) name(s)}
Status	{Draft}
Type	{Standard (S) or Informational (I)}
Created	{date}
Finalized	{date}

Abstract

A short (~200 word) description of the technical issue being addressed.

Motivation

Clearly explain why the existing language specification is inadequate to address the problem that the LEP solves.

Rationale

Describe why particular design decisions were made.

Specification

Describe the syntax and semantics of any new language feature. Preferably use Parsing Expression Grammar (PEG) snippets. See the current live ESL grammar as an example.

Backwards compatibility

Describe potential impact and severity on pre-existing code of the language's tools implementation.

Security implications (optional)

How could a malicious user take advantage of this new feature?

How to teach this (optional)

How to teach users, new and experienced, how to apply the LEP to their work. Don't forget potential deprecation warnings.

Proof of concept

Clear and concise example that shows that the implementation actually works.

Rejected ideas

Why certain ideas that were brought while discussing this LEP were not ultimately pursued.

Open issues

Any points that are still being decided/discussed.

References (optional)

A collection of URLs used as references through the LEP.