ࡱ> @CAG  bjbjَ  ]        $ui           :N,  BU/H:z Draft Liaison Contribution on Bangla (Bengali) Subject: Response to WG2 N1634, Incorporation of Bangla (Bengali) Coded Character Set in ISO/IEC 10646 The Unicode Technical Committee generally concurs with the points raised in WG2 Nxxx, Expert contribution by Mr. Michael Everson in response to N1634, a contribution from Dr Golam Mowlah, Director General of Bangladesh Standards and Testing Institution (BSTI), dated 1997-06-29. The repertoire of Bangla (Bengali) characters in the Unicode Standard (which is consistent with ISO/IEC 10646) is based on the assumption that rendering of text will be done by an algorithm. The key questions pertaining to the repertoire are: Is the character repertoire for Bengali script in both the Unicode Standard and ISO/IEC 10646 sufficient for writing the Bangla (Bengali) language? Does every character of BDS 1520:1995 Bangla Coded Character Set have an equivalent representation in the encoding of the Unicode Standard and of ISO/IEC 10646, either as a single coded character or as a coded character sequence? Like ISO/IEC JTC1 SC2/WG2, the Unicode Technical Committee has a principle of not changing character codes after assignment. Therefore, rearranging the characters in the range U+0980 to U+ 09FF in order to match the repertoire and order of BDS 1520:1995 is not possible. The Unicode Consortium provides mapping tables for many national and vendor standards, to associate the values in those standards and Unicode values. These mapping tables are available on the Consortiums ftp site,  HYPERLINK ftp://ftp.unicode.org ftp://ftp.unicode.org. The Unicode Technical Committee would welcome a mapping table for BDS 1520:1995 Bangla Coded Character Set, if the Bangladesh Standards and Testing Institution were to prepare one. If it can be shown, after careful analysis and taking the design principles published in The Unicode Standard, Version 2.0 into account, that one or more characters in BDS 1520:1995 Bangla Coded Character Set cannot be mapped, then the unmappable characters are candidates for addition to the repertoire of the Unicode Standard and also to the repertoire of ISO/IEC 10646. It should be noted that the Bengali script repertoire in the Unicode Standard and ISO/IEC 10646 is intended to cover historic material and other languages written in this script (e.g. Assamese). Therefore, the repertoire may include characters which are not used to write the Bangla (Bengali) language today. 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