Status: For WG2 consideration Date: 2000-09-04

Numbers (Two digit numbers with circle, Dual circled numbers and Inversed circled numbers) requested by Japan (for compatibility with JIS X 0213:2000) are one of the open issues. This paper confirms Japanese position on to the number issues. Note: Regular symbols issue is in progress as separated discussion, and only open issue (beside this paper) is request of pre-composed characters. First of all, for compatibility (and round trip conversion) with JIS X 0213, there is no question that there is a needs to have the same repertoires within ISO/IEC 10646. Since, other than acceptance of the proposal, there are no simple method to accommodate the requirements in short period of time. Even though there are many new tricks are possible to be invented for meeting the needs, there are no immediate proven solution yet, therefore, it would be better to provide the characters as original requirement for COMPATIBILITY WITH NATIONAL STANDARD immediately. Therefore, Japan requests to include the three types of circled characters into the BMP. 1 Japan noticed that there is an opinion which says “since number is endless, thus

Status: For review by WG2 Date: 2005-09-15

The Hangul syllable composition method description in clause 26.1 of ISO/IEC 10646:2003 needs clarification concerning the definition of Hangul syllable block. For example, one could read that Hangul Syllable (composed of a Choseong, Jungseong, and the optional Jongseong) can be only be made of only one Jamo character per class, while in fact each class can be represented by several characters. In addition, the normalization process described in clause 24 of the standard creates an equivalence between the pre-composed Hangul syllable in the range AC00-D7A3) equivalent to their Jamo sequences in the context of determining a complete Hangul syllable block. An informative note should be added in the standard to make clear that the pre-composed syllable can be part of a complete syllable block. The following text is a proposed clarification of the sub-clause 26.1. New text 26.1 Hangul syllable composition method In rendering, a sequence of Hangul Jamo (from HANGUL JAMO block: 1100 to 11FF) is displayed as a series of syllable blocks. Jamo can be classified into three classes: Choseong, Jungseong, and Jongseong. A complete syllable block is composed of a Choseong and a Jungseong, and optionally a Jongseong. A Choseong is made of one or more syllable-initial character (1100-1159). A Jungseong is made of one or more syllable-peak character (1161-11A2). A Jongseong is made of one or more syllable-final character (11A8-11F9). NOTE 1 – Hangul syllables characters in code positions AC00-D7A3 are, by clause 25, equivalent to their Choseong, Jungseong, and optional Jongseong for the purpose of determining a complete Hangul syllable block. An incomplete syllable is a string of one or more characters which does not constitute a complete syllable (for example, a Choseong alone, a Jungseong alone, a Jongseong alone, or a Jungseong followed by a Jongseong). An incomplete syllable which starts with a Jungseong or a Jongseong shall be preceded by a CHOSEONG FILLER (115F). An incomplete syllable composed of a Choseong alone shall be followed by a JUNGSEON