Ideographic Research Group
The Ideographic Research Group (IRG), formerly called the Ideographic Rapporteur Group, is a subgroup of the
History
The precursor to the IRG was the CJK Joint Research Group (CJK-JRG), established in 1990. In October 1993, this group was re-established with its present initials as a subgroup of WG2.[3] In June 2019, the subgroup acquired its current name.[2]
The IRG rapporteur from 1993 to 2004 was Zhang Zhoucai (张轴材), who had been convenor and chief editor of CJK-JRG from 1990 to 1993. Since 2004, the IRG rapporteur has been Hong Kong Polytechnic University professor Lu Qin (陸勤)[1][4] In June 2018, the title of "rapporteur" was changed to "convenor".[5]
Overview
The IRG is responsible for reviewing proposals to add new
As of Unicode version 15.1, the IRG has been responsible for submitting the following blocks of
- CJK Unified Ideographs and CJK Compatibility Ideographs (version 1.0)
- CJK Unified Ideographs Extension A (version 3.0)
- CJK Unified Ideographs Extension B and CJK Compatibility Ideographs Supplement (version 3.1)
- CJK Unified Ideographs Extension C (version 5.2)
- CJK Unified Ideographs Extension D (version 6.0)
- CJK Unified Ideographs Extension E (version 8.0)
- CJK Unified Ideographs Extension F (version 10.0)
- CJK Unified Ideographs Extension G (version 13.0)
- CJK Unified Ideographs Extension H (version 15.0)
Since 2015, proposed characters submitted by IRG member bodies have been processed in batches called "IRG Working Sets". Each working set undergoes several years of review by IRG experts before official submission of the working set to WG2 as a new block. Once accepted by WG2, the proposed block is processed according to the individual procedures followed by
- WS2015 became CJK Unified Ideographs Extension G (version 13.0)
- WS2017 became CJK Unified Ideographs Extension H (version 15.0)
- WS2021 may become CJK Unified Ideographs Extension J in a future version.
References
- ^ a b "ISO/IEC JTC1/SC2/WG2/IRG: Ideographic Rapporteur Group".
- ^ a b "Resolutions of the 24th ISO/IEC JTC 1/SC 2 Plenary Meeting, Redmond, WA, US, 2019-06-17 and 21". ISO/IEC JTC 1/SC 2. 24 June 2019. Retrieved 24 June 2019.
- ISBN 978-1-936213-29-0.
- ^ "LU, Qin(Lu Chin)". Retrieved 24 June 2019.
- ^ "Resolutions of the 23rd ISO/IEC JTC 1/SC 2 Plenary Meeting, London, UK, 2018-06-18, 22". ISO/IEC JTC 1/SC 2. 28 June 2018. Retrieved 24 June 2019.
- ^ "Unicode Standard Annex #45: U-source Ideographs". The Unicode Standard. Unicode Consortium.
- ^ "Appendix E: Han Unification History" (PDF). The Unicode Standard. Unicode Consortium. September 2021.
- ^ "Ideographic Rapporteur Group". Office of the Government Chief Information Officer.
- ^ "FAQ - Chinese and Japanese".
External links
- IRG homepage, including meeting documents and Working Set revisions