仕様書

[1]

1. TCVN 5712:1993 Information technology. Vietnamese 8 bit standard coded character set for information interchange
2. TCVN 5712:1999

• [2] Tiêu chuẩn Việt Nam TCVN 5712:1993 (ISO 646 : 1983, ISO 2022 : 1986, ISO 8859-1 : 1987 và ISO/IEC 10646-1 : 1992) về Công nghệ thông tin - Bộ mã chuẩn 8 bit kí tự Việt dùng trong trao đổi thông tin do Bộ Khoa học Công nghệ và Môi trường ban hành (2018-04-14 17:18:58 +09:00) http://hethongphapluatvietnam.com/tieu-chuan-viet-nam-tcvn-5712-1993-iso-646-1983-iso-2022-1986-iso-8859-1-1987-va-iso-iec-10646-1-1992-ve-cong-nghe-thong-tin-bo-ma-chuan-8-bit-ki-tu-viet-dung-trong-trao-doi-thong-tin-do-bo-khoa-hoc-cong-nghe-va-moi.html

• [10] Tiêu chuẩn Việt Nam TCVN 5712:1993 (ISO 646 : 1983, ISO 2022 : 1986, ISO 8859-1 : 1987 và ISO/IEC 10646-1 : 1992) về Công nghệ thông tin - Bộ mã chuẩn 8 bit kí tự Việt dùng trong trao đổi thông tin do Bộ Khoa học Công nghệ và Môi trường ban hành, vanbanphapluat.co, 2022-11-07T09:58:32.000Z https://vanbanphapluat.co/tcvn-5712-1993-cong-nghe-thong-tin-bo-ma-chuan-8-bit-ki-tu-viet
• [11] Tiêu chuẩn quốc gia TCVN 5712:1999 về Công nghệ thông tin - Bộ mã ký tự tiếng Việt 8-bit, vanbanphapluat.co, 2022-11-07T09:59:24.000Z https://vanbanphapluat.co/tcvn5712-1999-cong-nghe-thong-tin-bo-ma-ky-tu-tieng-viet-8-bit

呼称

[15] 通称 VSCII。 VISCII はまた別。

符号化文字集合

[13] :1993 には VN1, VN2, VN3 があるうち、 VN1 は C0, C1 に図形文字を割り当てていて ISO/IEC 2022 と互換性がありません。

[14] VN2, VN3 は ISO/IEC 2022 と矛盾しませんが、終端バイトは割り当てられていません。

• [3] missing vietnamese codec TCVN 5712:1993 in Python · Issue #65280 · python/cpython · GitHub, 2022-11-07T09:50:00.000Z https://github.com/python/cpython/issues/65280
  • [5] null, 2014-10-29T00:05:50.000Z, 2022-11-07T09:55:43.944Z https://bugs.python.org/file37054/TCVN5712-1.TXT
  • [6] null, 2014-10-29T00:06:01.000Z, 2022-11-07T09:56:00.024Z https://bugs.python.org/file37055/TCVN5712-2.TXT
  • [7] null, 2014-10-29T00:06:11.000Z, 2022-11-07T09:56:11.039Z https://bugs.python.org/file37056/TCVN5712-3.TXT

[4] Unicode 以前の越南では多数の文字コード規格が乱立していました。 Chữ Quốc Ngữ

[8] TCVN 5712:1993 内だけで3種類 >>5 >>6 >>7

[12] TCVN 5712:1999 はまた別の1種類 >>11

比較

[25] >>3 (3種類)、 >>24 (2種類)、 >>20 (1種類) は、それぞれ -1, -2, -3 に相当する使用、不使用の違いはあるものの、 矛盾はなく全体としては同等です。

文脈

[575] ctext では extended segment の tcvn-5712 として使うことが出来ます。

VNLabs

[30] OvniConv-1.4.0 | Apache OpenOffice Extensions, 2025-09-17T15:57:28.000Z, 2025-10-28T15:17:30.952Z https://extensions.openoffice.org/en/projectrelease/ovniconv-140.html

* Added support for VNLabs encoding (VNTime font found in FreeCode).

[32] VNLabs and Cosmos Systems, 2025-10-28T15:18:26.000Z, 1999-10-09T13:05:45.872Z https://web.archive.org/web/19991009125909/http://www.deltanet.com/nd/vnlab.htm

[33] >>32 この文書がおそらく VNLabs encoding で書かれている。

[31] VNLabs - Wikipedia, 2025-10-14T15:15:27.000Z, 2025-10-28T15:18:17.611Z https://en.wikipedia.org/wiki/VNLabs

メモ

• [9] 1997-05-09T14:51:15.000Z, 2022-11-07T09:57:11.306Z http://www.informatik.uni-leipzig.de/~duc/software/misc/tcvn.txt
  • [22] 消滅確認 2025-06-21T07:28:33.00Z
  • [23] Wayback Machine, 2025-06-21T07:28:22.000Z https://web.archive.org/web/20031218194314/http://www.informatik.uni-leipzig.de/~duc/software/misc/tcvn.txt

[17] csni_14_1992.pdf, 2011-08-29T15:20:59.000Z, 2022-11-08T13:55:46.323Z https://cs.nyu.edu/~nhan/csni_14_1992.pdf

[16] draft_npct_19920322.pdf, 2008-12-03T22:04:43.000Z, 2022-11-08T13:45:21.418Z https://cs.nyu.edu/~nhan/draft_npct_19920322.pdf#page=7

VSCII-MNEM

[19] 00000001.PDF - 180.pdf, 2022-11-02T03:16:30.000Z, 2022-12-10T05:52:11.407Z https://itscj.ipsj.or.jp/ir/180.pdf

[20] VSCII - Wikipedia, 2025-06-17T21:28:38.000Z, 2025-06-21T07:04:57.440Z https://en.wikipedia.org/wiki/VSCII

[24] VISCII, 1998-06-27T07:45:22.000Z, 2025-06-21T07:29:07.458Z https://czyborra.com/charsets/vietnamese.html