Sutton-Slevinski Collaboration S. Slevinski Internet-Draft www.sutton-signwriting.io Intended status: Informational 30 May 2026 Expires: 1 December 2026 Formal SignWriting: Internet-Draft Record and Published Reference draft-slevinski-formal-signwriting-11 Abstract This document is the final Internet-Draft update for Formal SignWriting. Formal SignWriting is the plain-text technical model used by Sutton SignWriting resources for FSW, SWU, signboxes, grammar, search, layout, rendering, styling, and implementation practice. The maintained reference publication is now the Formal SignWriting series, version 1.0.0, published through Zenodo, GitHub, and the author's website. This Internet-Draft is retained as a historical IETF-facing bridge and cross-reference. It is not an IETF standard, does not request IETF standardization, and should not be cited as the current reference specification for Formal SignWriting. Status of This Memo This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet- Drafts is at https://datatracker.ietf.org/drafts/current/. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." This Internet-Draft will expire on 1 December 2026. Copyright Notice Copyright (c) 2026 IETF Trust and the persons identified as the document authors. All rights reserved. Slevinski Expires 1 December 2026 [Page 1] Internet-Draft FSW Record May 2026 This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (https://trustee.ietf.org/ license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Revised BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Revised BSD License. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 2. Status of This Internet-Draft . . . . . . . . . . . . . . . . 2 3. Relationship to the Formal SignWriting Series . . . . . . . . 3 4. Technical Scope Preserved by the Series . . . . . . . . . . . 3 5. Crosswalk from This Internet-Draft to the Series . . . . . . 4 6. Implementation and Citation Guidance . . . . . . . . . . . . 5 7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 6 8. Security Considerations . . . . . . . . . . . . . . . . . . . 6 9. Informative References . . . . . . . . . . . . . . . . . . . 6 Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 6 1. Introduction Formal SignWriting models signed text as structured plain text so that Sutton SignWriting [SuttonSignWriting] can be stored, searched, checked, laid out, rendered, and processed by software without losing the written form. Earlier versions of draft-slevinski-formal-signwriting served as public IETF-facing working specifications for implementation and review. Those drafts documented the technical model for Formal SignWriting in ASCII (FSW), SignWriting in Unicode (SWU), signboxes, grammar, query behavior, styling, rendering, and related implementation practice [PriorID]. The maintained reference publication for this work has moved to the Formal SignWriting series, version 1.0.0. This Internet-Draft updates the IETF-visible record so that readers, reviewers, implementers, and citation systems can distinguish the expired Internet-Draft history from the current maintained publication series. 2. Status of This Internet-Draft This is an individual Internet-Draft. It is not an IETF standard, has not become an RFC, and does not request publication as an RFC. Slevinski Expires 1 December 2026 [Page 2] Internet-Draft FSW Record May 2026 This document records the IETF-facing history of Formal SignWriting and identifies the maintained reference publication. Earlier versions of this Internet-Draft remain useful as historical technical records, but they are not the current citation target for Formal SignWriting. This document is expected to expire under normal Internet-Draft rules. That expiration does not affect the Formal SignWriting series, its DOI record, its GitHub repository, or the Sutton SignWriting resources that implement the model. 3. Relationship to the Formal SignWriting Series The current maintained reference is the Formal SignWriting series, version 1.0.0, published through Zenodo with a DOI [FSWSeries]. Source materials are available on GitHub [FSWGitHub], and a living web presentation is available on the author's website [FSWWebsite]. Readers implementing, citing, reviewing, or evaluating Formal SignWriting should use the Formal SignWriting series rather than this Internet-Draft. Use the series DOI when citing the technical series as a whole. Use an artifact DOI when citing a specific technical paper that has its own record. This Internet-Draft does not supersede, duplicate, or restate the full technical series. It points to the maintained publication path and gives a crosswalk from the earlier Internet-Draft structure to the current series. 4. Technical Scope Preserved by the Series The Formal SignWriting series preserves and expands the technical scope previously carried by draft-slevinski-formal-signwriting. That scope includes: * Formal SignWriting as a plain-text technical model for written sign text; * FSW as the stable ASCII production encoding; * SWU as an isomorphic Unicode-oriented representation supported by Sutton SignWriting resources; * the two-part word model of an optional temporal prefix and a required spatial signbox; * symbols, coordinates, centering, bounding boxes, and signbox structure; Slevinski Expires 1 December 2026 [Page 3] Internet-Draft FSW Record May 2026 * valid token patterns, grammar, parsing, and transformation behavior; * query strings, regular-expression search, and matching logic; * vertical and horizontal sign text layout; * SVG, font, and output-oriented rendering models; * style strings and presentation markup; * libraries, datasets, transformations, and implementation pathways; and * encoding stewardship, stability, forkability, and the boundary between computational validity and linguistic judgment. 5. Crosswalk from This Internet-Draft to the Series The following table maps the major technical areas of earlier versions of this Internet-Draft to the current Formal SignWriting series. Slevinski Expires 1 December 2026 [Page 4] Internet-Draft FSW Record May 2026 +=======================================+======================+ | Earlier Internet-Draft area | Current reference in | | | the series | +=======================================+======================+ | Core model; two-part word of time and | Formal SignWriting | | space | | +---------------------------------------+----------------------+ | Character sets; FSW and SWU | FSW and SWU | | conversion | | +---------------------------------------+----------------------+ | Symbols, coordinates, centering, | The Shape of a Sign | | bounding boxes, and signbox shape | | +---------------------------------------+----------------------+ | Token patterns, syntax, and grammar | Grammar of Formal | | | SignWriting | +---------------------------------------+----------------------+ | Query language and regular-expression | Searching Signed | | search | Text | +---------------------------------------+----------------------+ | Vertical writing, horizontal writing, | Sign Text Layout | | lanes, centering, and passage layout | | +---------------------------------------+----------------------+ | SVG, fonts, layout, and output models | Rendering Formal | | | SignWriting | +---------------------------------------+----------------------+ | Style strings and presentation markup | Styling Signs | +---------------------------------------+----------------------+ | Libraries, datasets, transformations, | Formal SignWriting | | and implementation pathways | in Practice | +---------------------------------------+----------------------+ | Stability, stewardship, and authority | Encoding Stewardship | | boundaries | and Stability | +---------------------------------------+----------------------+ Table 1 6. Implementation and Citation Guidance Do not implement from this Internet-Draft as the current reference specification. Implementers should use the Formal SignWriting series and the current Sutton SignWriting libraries, datasets, and documentation. Do not cite this Internet-Draft as the current specification for Formal SignWriting. This document may be cited only as a historical Internet-Draft record or IETF-facing transition note. Current citations should use the Formal SignWriting series DOI or the DOI for the specific series artifact being cited. Slevinski Expires 1 December 2026 [Page 5] Internet-Draft FSW Record May 2026 The fact that draft-slevinski-formal-signwriting did not become an RFC is a fact about the IETF publication path. It does not determine the status of Formal SignWriting as a maintained technical model, production encoding practice, or Sutton SignWriting infrastructure component. 7. IANA Considerations This document makes no request of IANA. 8. Security Considerations This document defines no protocol, registry, network service, authentication mechanism, executable format, or wire format. It introduces no new security considerations for the Internet. 9. Informative References [FSWGitHub] Slevinski, S., "Formal SignWriting GitHub Repository", 2026, . [FSWSeries] Slevinski, S., "Formal SignWriting", 2026, . [FSWWebsite] Slevinski, S., "Formal SignWriting Series Website", 2026, . [PriorID] Slevinski, S., "Formal SignWriting, draft-slevinski- formal-signwriting-10", 12 October 2025, . [SuttonSignWriting] Slevinski, S., "Sutton SignWriting Resources", . Author's Address Steve Slevinski www.sutton-signwriting.io Email: slevinski@signwriting.org Slevinski Expires 1 December 2026 [Page 6]