Edit

Page

Page title:

Page body:

* TSCII

- [24] 
[CITE[(STC) TSCII - The Tamil Encoding Standard]], [TIME[2025-06-22T13:57:20.000Z]], [TIME[2001-03-08T07:36:58.378Z]] <https://web.archive.org/web/20010308073620/http://www.tamil.net/tscii/tscii.html>
--
[26] 
[CITE[Wayback Machine]], [TIME[2025-06-22T13:58:04.000Z]] <https://web.archive.org/web/20010619134238/http://www.tamil.net/tscii/charset11.gif>
--
[27] 
[CITE[Wayback Machine]], [TIME[2025-06-22T13:58:16.000Z]] <https://web.archive.org/web/20041021204538/http://www.tamil.net/tscii/charset12.gif>
--
[28] 
[CITE[Wayback Machine]], [TIME[2025-06-22T13:58:25.000Z]] <https://web.archive.org/web/20010619134234/http://www.tamil.net/tscii/charset13.gif>
--
[29] 
[CITE[Wayback Machine]], [TIME[2025-06-22T13:58:33.000Z]] <https://web.archive.org/web/20001009182902/http://www.tamil.net/tscii/charset14.gif>
--
[30] 
[CITE[Wayback Machine]], [TIME[2025-06-22T13:58:41.000Z]] <https://web.archive.org/web/20010619134142/http://www.tamil.net/tscii/charset15.gif>
--
[31] 
[CITE[Wayback Machine]], [TIME[2025-06-22T13:58:49.000Z]] <https://web.archive.org/web/20010619133758/http://www.tamil.net/tscii/charset152.gif>
--
[17] 
[CITE[Wayback Machine]], [TIME[2025-06-22T12:41:50.000Z]] <https://web.archive.org/web/20001002222835/http://www.geocities.com/Athens/5180/charset16.gif>
--- [25] 
[CITE[Wayback Machine]], [TIME[2025-06-22T13:57:34.000Z]] <https://web.archive.org/web/20001018062931/http://www.tamil.net/tscii/charset16.gif>

[52] [CITE[A Standard For Tamil Computing -annex 1]], [TIME[2025-06-22T14:50:30.000Z]], [TIME[2000-10-10T14:23:12.567Z]] <https://web.archive.org/web/20001010142200/http://www.geocities.com/Athens/5180/tscii4.html>

[43] [CITE[A Standard For Tamil Computing -annex 1]], [[K. Kalyanasundaram]], [TIME[2025-06-22T14:23:32.000Z]], [TIME[2002-06-26T06:07:50.618Z]] <https://web.archive.org/web/20020626060441/http://www.tamil.net/tscii/faq5.html>

[44] >>52 >>43 [[Unicode]] との対応

[91] >>43 なぜか [N[0]] のことを [N[O]] と書いているところがある

-[77] [CITE@en-us[UTN #15: Text Conversion from TSCII 1.7 to Unicode]], [TIME[2024-08-13T18:06:16.000Z]], [TIME[2025-06-27T13:46:30.547Z]] <https://www.unicode.org/notes/tn15/>
--[78] [CITE@ja[Microsoft Word - tscii2unicode_20070301.doc - Tscii2Unicode2.pdf]], [TIME[2007-03-05T16:23:38.000Z]], [TIME[2025-06-27T13:47:12.133Z]] <https://www.unicode.org/notes/tn15/Tscii2Unicode2.pdf>
-- [88] 
[CITE@en-us[UTN #15: Text Conversion from TSCII 1.7 to Unicode]], [TIME[2024-08-13T18:06:16.000Z]], [TIME[2025-07-08T14:37:32.752Z]] <https://www.unicode.org/notes/tn15/tn15-2.html>
- [89] 
[CITE@en-us[UTN #15: '''['''Text conversion From TSCII 1.7 to Unicode''']''']], [TIME[2004-05-25T21:34:48.000Z]], [TIME[2025-07-08T14:37:52.777Z]] <https://www.unicode.org/notes/tn15/tn15-1.html>
-- [90] 
[CITE@ja[Microsoft Word - tscii2unicode_200504.doc - Tscii2Unicode.pdf]], [TIME[2004-05-25T21:34:39.000Z]], [TIME[2025-07-08T14:38:06.164Z]] <https://www.unicode.org/notes/tn15/Tscii2Unicode.pdf>

- [13] [CITE[Towards Standardisation of Tamil Computing-part I]], [TIME[2025-06-22T12:40:40.000Z]], [TIME[2002-10-20T22:46:14.070Z]] <https://web.archive.org/web/20021020223845/http://www.geocities.com/Athens/5180/sintalk1.html>
-- [11] 
[CITE[Towards Standardisation of Tamil Computing-part II]], [TIME[2025-06-22T12:40:07.000Z]], [TIME[2002-02-16T08:50:22.855Z]] <https://web.archive.org/web/20020216084646/http://www.geocities.com/Athens/5180/sintalk2.html>
-- [12] 
[CITE[Standard Character Set for Tamil]], [TIME[2025-06-22T12:40:16.000Z]], [TIME[2000-10-02T19:27:43.550Z]] <https://web.archive.org/web/20001002192455/http://www.geocities.com/Athens/5180/charset.html>

- [16] 
[CITE[Tamil Standard Code for Information Interchange (TSCII)]], [TIME[2025-06-22T12:41:37.000Z]], [TIME[2001-05-13T21:47:44.927Z]] <https://web.archive.org/web/20010513211855/http://www.geocities.com/athens/5180/tscii.html>
-- [14] 
[CITE[Tamil Standard Code for Information Interchange (TSCII) -part II]], [TIME[2025-06-22T12:41:02.000Z]], [TIME[2002-11-22T15:05:19.381Z]] <https://web.archive.org/web/20021122145112/http://www.geocities.com/Athens/5180/tsciiB.html>

[50] [CITE[A Proposal for A Standard Code For Tamil Computing-Annexes]], [TIME[2025-06-22T14:49:31.000Z]], [TIME[2000-10-10T08:35:08.175Z]] <https://web.archive.org/web/20001010083412/http://www.geocities.com/Athens/5180/tscii2.html>

[45] 
[CITE[TSCII draft proposal]], [TIME[2025-06-22T14:23:57.000Z]], [TIME[2001-04-21T09:48:06.033Z]] <https://web.archive.org/web/20010421092112/http://www.tamil.net/tscii/tscii_draft.html>

[51] [CITE[Tamil standard Code (TSCII)-character table]], [TIME[2025-06-22T14:50:08.000Z]], [TIME[2000-10-10T11:19:41.051Z]] <https://web.archive.org/web/20001010111847/http://www.geocities.com/Athens/5180/tscii3.html>

[20] 
[CITE[A Standard For Tamil Computing]], [TIME[2025-06-22T13:42:18.000Z]], [TIME[2000-10-10T20:08:37.758Z]] <https://web.archive.org/web/20001010200827/http://www.geocities.com/Athens/5180/tsic.html>

[19] 
[CITE[Tamil Standard Code TSCII and 8-bit Coded Character sets]], [TIME[2025-06-22T13:52:58.000Z]], [TIME[2000-03-08T01:00:55.034Z]] <https://web.archive.org/web/20000308005419/http://www.geocities.com/Athens/5180/8bitstd.html>

[46] [CITE[TSCII-based Webpages in Tamil]], [TIME[2025-06-22T14:24:54.000Z]], [TIME[2000-03-11T01:38:25.765Z]] <https://web.archive.org/web/20000311005942/http://www.geocities.com/Athens/5180/tscguide.html>

>
i) Invoke "x-user-defined" case for the encoding in the META header

>
ii) Invoke font face tags

>Based on several successful trials on several of the commonly used web-browsers in different computer OS, IWC recommends that the Tamil webpages carry the tamil text as raw 8-bit text and with Meta-Headers that specify "x-user-defined" as the charset.

;; [48] これの古い版と思われるものは [CITE[[[Mylai]]]] を使うことを勧めていた。

[81] 
[CITE[null]], [TIME[2021-07-18T23:39:49.000Z]], [TIME[2025-06-27T14:04:14.538Z]] <https://www.iana.org/assignments/charset-reg/TSCII>

[87] 
[CITE@ja[document]], [TIME[2022-09-24T17:00:14.000Z]], [TIME[2025-07-08T08:18:33.291Z]] <https://citeseerx.ist.psu.edu/document?doi=4d45591fced270827727b3a1a808a7eef1c9c9e1&repid=rep1&type=pdf>

** 実装

-
[21] 
[CITE[Implementation Tools for Tamil Standard Code (TSCII)]], [TIME[2025-06-22T13:43:31.000Z]], [TIME[1999-11-05T08:18:51.058Z]] <https://web.archive.org/web/19991105081815/http://www.geocities.com/Athens/5180/tsctools.html>
-
[32] 
[CITE[(STC) Tools: Fonts, keyboard drivers & converters]], [TIME[2025-06-22T13:59:07.000Z]], [TIME[2001-04-09T00:20:58.953Z]] <https://web.archive.org/web/20010409001810/http://www.tamil.net/tscii/tools.html>

- [34]  ''Bug 204039 - write a converter for Tamil rendering with TSCII-encoded TTFs'' <http://bugzilla.mozilla.org/show_bug.cgi?id=204039>
-- [35] 
[CITE@en[204039 - write a converter for Tamil rendering with TSCII-encoded TTFs]], [TIME[2025-06-22T14:07:35.000Z]] <https://bugzilla.mozilla.org/show_bug.cgi?id=204039>
--- [38] 
[CITE[null]], [TIME[2025-06-22T14:10:02.000Z]] <https://bug204039.bmoattachments.org/attachment.cgi?id=122999>
--- [39] 
[CITE@en[140013 - Incorrect Display of Character Encoding Unicode UTF-8 (Tamil)]], [TIME[2025-06-22T14:13:52.000Z]] <https://bugzilla.mozilla.org/show_bug.cgi?id=140013>

[92] >>39 は >>75 の [[Unicode]] → [[TSCII]] 変換に手を加えたものと、
それを更に [[Windows-1252]] 形式既存フォントのための変換を行うもの。

[93] >>39 のフォント符号化情報には次のようにある。

>
[PRE[
+# Tamil fonts (TSCII encoding : see http://www.tscii.net)
+# See also http://bugzilla.mozilla.org/show_bug.cgi?id=204039.
+# These fonts have pseudo-Unicode cmap with TSCII  interpreted as Windows-1252.
+encoding.tsc_paranarpdf.ttf = x-tamilttf-0.wide
+encoding.tsc_paranbold.ttf = x-tamilttf-0.wide
+encoding.tsc_paranarho.ttf = x-tamilttf-0.wide
+encoding.tsc_kannadaasan.ttf = x-tamilttf-0.wide
+encoding.tscu_comic.ttf = x-tamilttf-0.wide
+encoding.tscu_times.ttf = x-tamilttf-0.wide
+encoding.tscu_paranar.ttf = x-tamilttf-0.wide
+encoding.tscu_paranarbold.ttf = x-tamilttf-0.wide
+
+
+# These two fonts don't have Unicode cmap but have pseudo-Apple Roman cmap
+# with TSCII assignment.
+encoding.tsc_aandaal.ttf = x-tscii-0
+encoding.tsc_aparanarpdf.ttf = x-tscii-0
]PRE]

[94] >>93 pseudo-Apple Roman [CODE[cmap]] というのは [[TSCII]] を [[Latin1]]
とみなして [[MacRoman]] に変換したもの? しかし >>39 の実装では
[CODE[x-tscii-0]] は [[TSCII]] 自体のようにみえる。それともそこはフォントにアクセスする既存の実装で自動的に変換が入るということか?

- [75] [CITE@en-US[sourceware.org Git - glibc.git/blob - iconvdata/tscii.c]], [TIME[2025-06-25T13:02:57.000Z]] <https://sourceware.org/git/?p=glibc.git;a=blob;f=iconvdata/tscii.c;h=dd4c17d3819fe8e94c267df0cffb41fee3249100;hb=b2a8d19f4adc8ca22394b02c144b4bc867adc804>
-- [76] [CITE@en-US[sourceware.org Git - glibc.git/tree - iconvdata/testdata/]], [TIME[2025-06-25T13:03:37.000Z]] <https://sourceware.org/git/?p=glibc.git;a=tree;f=iconvdata/testdata;h=9f6eb47c5e2a49567d104457f118d559db798bc8;hb=b2a8d19f4adc8ca22394b02c144b4bc867adc804>

[79] 
[CITE@en[qt/src/corelib/codecs/qtsciicodec.cpp at master · radekp/qt · GitHub]], [TIME[2025-06-27T14:00:53.000Z]] <https://github.com/radekp/qt/blob/master/src/corelib/codecs/qtsciicodec.cpp>

[80] 
>>79 これはかなり単純化されているように見えるが大丈夫か?

[85] 
[CITE@en['''['''HTMLArea: loading script 1/3''']''']], [TIME[2025-06-27T14:32:35.000Z]], [TIME[2006-07-17T23:16:16.614Z]] <https://web.archive.org/web/20060717231609/http://www.tamil.net/#pager>

** 人工的な利用例

[49] [CITE[Wayback Machine]], [TIME[2025-06-22T14:47:30.000Z]] <https://web.archive.org/web/20001017141307/http://www.geocities.com/Athens/5180/tsctst11.html>

** 実利用例

[33] [CITE[Wayback Machine]], [TIME[2025-06-22T14:04:24.000Z]] <https://web.archive.org/web/20010513162020/http://www.tamil.net/people/sivaraj/decindep.html>

>
[PRE[
<META HTTP-EQUIV="Content-type" CONTENT="text/html; charset=x-tscii">
]PRE]

[40] [CITE[Wayback Machine]], [TIME[2025-06-22T14:14:59.000Z]] <https://web.archive.org/web/20020618220038/http://www.tamil.net/projectmadurai/pub/pm0143/kprose1.html>

>
[PRE[
<META HTTP-EQUIV="Content-Type" CONTENT="text/html"; charset="x-user-defined">
]PRE]

[42] 
[CITE[Open Directory - World: Tamil]], [TIME[2025-06-22T14:18:27.000Z]], [TIME[2001-06-22T06:29:41.195Z]] <https://web.archive.org/web/20010622062932/http://dmoz.org/World/Tamil/>

- [53] 
[CITE[tamil.com - World's First Congregatal!]], [TIME[2025-06-23T13:04:11.000Z]], [TIME[2001-01-19T19:12:01.393Z]] <https://web.archive.org/web/20010118204300/http://www.tamil.com/>
-- [55] [CODE[<font face="InaimathiTSC" color="FFFFFF">]]
-- [56] [CODE[<font face="InaiMathiTSC" size="2" color="FFFFFF">]]
-- [54] 
[CITE[Wayback Machine]], [TIME[2025-06-23T13:04:26.000Z]] <https://web.archive.org/web/20050101131526/http://www.tamil.com/Tneritsc.zip>
--- [57] TSC という名前なので [[TSCII]] フォントか (未確認)
--- [58] [[Latin1]] [[名前文字参照]]での記述と8ビット符号での記述が混在
-- [59] 
[CITE[tamil.com - cinema : ungal karutthu]], [TIME[2025-06-23T13:08:50.000Z]], [TIME[2000-10-19T03:57:43.845Z]] <https://web.archive.org/web/20001019035724/http://www.tamil.com/thamizhan/karuthu.htm>
--- [60] 提出[[フォーム]]。 [[TSCII]] での記入と提出を期待していたものか。

- [71] [CITE[Welcome to ChennaiOnline's Aaraamthinai - The first and foremost Tamil E-Zine]], [TIME[2025-06-24T13:48:07.000Z]], [TIME[2000-06-09T10:45:07.530Z]] <https://web.archive.org/web/20000609103733/http://aaraamthinai.com/>
-- [72] [CITE[Welcome to Chennaionline's Aaraamthinai, The First Tamil E-Zine on the Net. Brought to you by Chennai Interactive Business Services (P) Ltd.]], [TIME[2025-06-24T13:48:24.000Z]], [TIME[2000-06-14T13:59:22.352Z]] <https://web.archive.org/web/20000614135159/http://aaraamthinai.com/download.html>

[73] >>71

>
[PRE[
Content-Type: text/html;charset=x-user-defined
]PRE]

>
[PRE[
<meta http-equiv="Content-Type" content="text/html;charset=x-user-defined">
<meta http-equiv="Content-Style-Type" content="text/css">

<link rel="FONTDEF" src="http://www.aaraamthinai.com/eot/itsc.pfr">

<style type="text/css">
  @font-face {
    font-family: InaiMathiTSC;
    font-style:  normal;
    font-weight: normal;
    src: url(https://web.archive.org/web/20000609103733im_/http://www.aaraamthinai.com/eot/itsc.eot);
  }
</style>
]PRE]

[74] [[HTTP]] で [[x-user-defined]] が指定されているので、現在の [[Webブラウザー]]では挙動が違って、
[CC[U+F7[VAR[hh]]]] あたりの文字が出現することになります。
[SEE[ [[x-user-defined]] ]]

[83] 
[CITE[Project Madurai: List of Etexts currently available]], [TIME[2025-06-27T14:22:53.000Z]], [TIME[2004-07-01T09:12:34.331Z]] <https://web.archive.org/web/20040701091212/http://www.tamil.net/projectmadurai/pmfinish.html>

>
It has been decided during late 1998 that Tamil Script Code for Information Interchange (TSCII) encoding developed by the Cyber Tamil community will be used for all Etexts. Hence all the Etxts (and web versions) of Tamil works released in 1999 will be in TSCII format. Etexts released in the maiden year 1998 are still available in Inaimathi/Anjal and Mylai font formats.

[84] 
[CITE[Wayback Machine]], [TIME[2025-06-27T14:29:58.000Z]] <https://web.archive.org/web/20040630021019/http://www.tamil.net/projectmadurai/pub/pm0001/trkrltsc.html>

** メモ

- [36] 
[CITE[TSCII]] ([TIME[2007-02-25 11:31:32 +09:00]] 版) <http://www.tscii.org/>
-- [37] 消滅確認 [TIME[2025-06-22T14:07:57.500Z]]
--
[22] [CITE[Standards for Tamil Computing Group's TSCII site]], [TIME[2025-06-22T13:56:05.000Z]], [TIME[2001-04-01T21:04:08.178Z]] <https://web.archive.org/web/20010401210353/http://www.tscii.org/>

[23] 
[CITE[Standards for Tamil Computing]], [TIME[2025-06-22T13:56:35.000Z]], [TIME[2001-03-20T14:26:57.320Z]] <https://web.archive.org/web/20010320142640/http://www.tamil.net/tscii/>

[18] 
[CITE[Multiple language support over the Internet WWW]], [TIME[2025-06-22T12:42:04.000Z]], [TIME[1999-05-03T12:17:55.373Z]] <https://web.archive.org/web/19990503121010/http://www.irdu.nus.sg/tamilweb/tamilnet97/paper/html/anbarasan.html>

[15] [CITE[Multiple language support over the Internet WWW]], [TIME[2025-06-22T12:41:22.000Z]], [TIME[1999-05-03T13:38:55.764Z]] <https://web.archive.org/web/19990503132248/http://www.irdu.nus.sg/tamilweb/tamilnet97/paper/html/muthu.htm>

[82] 
[CITE@en[Tamil Script Code for Information Interchange - Wikipedia]], [TIME[2025-06-17T20:10:35.000Z]], [TIME[2025-06-27T14:06:46.104Z]] <https://en.wikipedia.org/wiki/Tamil_Script_Code_for_Information_Interchange>

* TamilNet 99 勧告に基づく符号化

** 仕様書

[9] [CITE[FINAL VERSION OF TAMIL FONT AND KEYBOARD STANDARDS OF TAMILNADU GOVT.]], [TIME[2025-06-22T12:19:22.000Z]], [TIME[2000-03-01T10:55:14.808Z]] <https://web.archive.org/web/20000301104837/http://www.geocities.com/Athens/5180/tnstd.html>

** 実装

[10] [CITE[Software Tools Based on the Font Encoding Standards of Tamilnadu]], [TIME[2025-06-22T12:21:51.000Z]], [TIME[2000-03-09T10:35:17.918Z]] <https://web.archive.org/web/20000309102655/http://www.geocities.com/Athens/5180/tabfonts.html>

[64] [[i-DNS.net]]

** TAB 実利用例

- [61] [CITE[i-DNS.net International]], [TIME[2025-06-24T12:59:57.000Z]], [TIME[2000-10-18T07:32:08.356Z]] <https://web.archive.org/web/20001018072738/http://www.i-dns.net/samples/tamil.html>
-- [62] 画像が使われているが、 [[HTML]] の[[コメント]]に文字もある

[63] >>61

>
[PRE[
 <meta http-equiv="Content-Type" content="text/html; 
charset=x-user-defined">
]PRE]

>
[PRE[

]PRE]

- [65] [CITE[Ambalam - The Tamil Portal Site]], [TIME[2025-06-24T13:28:11.000Z]], [TIME[2001-01-18T23:34:39.854Z]] <https://web.archive.org/web/20010118233200/http://www.ambalam.com/>
-- [66] [CITE[Font Help]], [TIME[2025-06-24T13:28:23.000Z]], [TIME[2000-12-12T05:11:53.973Z]] <https://web.archive.org/web/20001212051000/http://ambalam.com/download.html>

[67] >>65

>
[PRE[
   <meta content="text/html; charset=x-user-defined" http-equiv="Content-Type">
]PRE]

>[CODE[<font face="TAB_InaiMathi" size="2">]]

[68] >>66 には [[Webフォント]]のための [[ActiveX]] 承認画面の紹介もある。

- [69] [CITE[Main]], [TIME[2025-06-24T13:36:20.000Z]], [TIME[2000-10-22T04:06:59.211Z]] <https://web.archive.org/web/20001022040633fw_/http://www.pathcom.com/~mahend/anjal_04.htm>
-- [70] [[PFR]] + [[ActiveX control]]

** メモ

[47] 
[CITE[Standards for Tamil Computing announced at Tamilnet99]], [TIME[2025-06-22T14:26:28.000Z]], [TIME[2000-03-11T13:44:18.337Z]] <https://web.archive.org/web/20000311134409/http://www.geocities.com/Athens/5180/tnet99.html>

[4] [CITE[index]], [TIME[2016-08-31T09:52:40.000Z]], [TIME[2025-05-20T15:48:34.239Z]] <https://www.tamilvu.org/Tamilnet99/>

[1] [CITE[REPORT OF INTERNATIONAL CONFERENCE ON TAMILNET 99]], [TIME[2025-05-20T15:37:20.000Z]], [TIME[2000-12-15T14:37:07.396Z]] <https://web.archive.org/web/20001215143700/http://www.tamilnet99.org/tabtam.htm>

[3] 
[CITE[Evaluation Procedures]], [TIME[2016-08-31T09:52:39.000Z]], [TIME[2025-05-20T15:47:01.255Z]] <https://www.tamilvu.org/Tamilnet99/evtext.htm>

[5] [CITE[Abstract]], [TIME[2016-08-31T09:52:39.000Z]], [TIME[2025-05-20T15:52:47.091Z]] <https://www.tamilvu.org/Tamilnet99/go17.htm>

[6] 
[CITE@ja[nagasaki.pdf]], [TIME[2003-06-03T08:34:21.000Z]], [TIME[2025-05-20T15:54:04.156Z]] <http://www.aa.tufs.ac.jp/~tjun/data/gicas/nagasaki.pdf#page=5>

* 関連

[2] [[フォント依存符号化]]

[41] 
[CITE[முரசு அஞ்சல் - யூனிகோட் தமிழ்ப் பக்கம்]], [TIME[2025-06-22T14:17:08.000Z]], [TIME[2009-08-26T08:48:14.798Z]] <https://web.archive.org/web/20090826084425/http://www.murasu.com/unicode/sample.html>

[86] 
[[TACE16]]

* メモ

-
[7] 
[CITE@en[compact_enc_det/util/encodings/encodings.pb.h at master · google/compact_enc_det · GitHub]], [TIME[2025-05-21T05:29:04.000Z]] <https://github.com/google/compact_enc_det/blob/master/util/encodings/encodings.pb.h#L106>
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[8] 
[CITE@en[compact_enc_det/util/encodings/encodings.cc at master · google/compact_enc_det · GitHub]], [TIME[2025-05-21T05:30:47.000Z]] <https://github.com/google/compact_enc_det/blob/master/util/encodings/encodings.cc#L766>

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