- From: Reece Dunn <msclrhd@googlemail.com>
- Date: Thu, 21 Feb 2013 12:08:53 +0000
- To: www-style list <www-style@w3.org>
- Message-ID: <CAGdtn24nmiZbZ_Hj4PUsw3oFQjK3b=Q+1vDKFfvrEE+XWpJeQw@mail.gmail.com>

Hi, Section 6.1.2 describes an algorithm to handle an extended set of Chinese, Japanese and Korean numbers. The way it is presented is similar to the way the other systems are handled, therefore it makes sense for an implementor to have a counter style with |system: cjk| and the characters set appropriately. Likewise, the ethiopic-numerals style could similarly be handled via a |system: ethiopic| counter style with the appropriate characters set. These and any extended symbol sets would be vendor prefixed as Counter Styles 3 currently stands, but could possibly form part of a Counter Styles 4 specification to handle these properly. Looking at the way numbers are spoken (e.g. "one hundred and sixteen" for 116 in British English), the way these are constructed is similar to the way ethiopic-numerals are formed [1]. The only difference is that Western numbers are split in groups of 3, whereas Ethiopic numbers are split into groups of 2. Also, Korean splits numbers into groups of 4. Therefore, instead of having a specific ethiopic system, they could be expressed using something like |system: natural; group-length: 2;|. This will also help with the CJK extended sets as well, as looking at section 6.1.2, the tables use production rules for handling group-length 4 numbers. I am interested in spoken forms for numbers as part of my work on a Text-to-Speech program and am wondering if I can express spoken cardinal and ordinal forms as CSS counter styles. ----- RFC: Grouped Numbers : the 'grouped' system This system is used to handle number systems that group numbers into digit blocks (such as the Chinese, Japanese, Korean and Ethiopic number systems). | system: grouped Specifies that the counter style handles numbers in groups of n-digit numbers, where n is specified by the /order/ property. | order: <number> Specifies the number of digits each number group of a /grouped/ counter style contains. | digit-symbols: <integer> <symbol>+ Specifies the symbols to use for the digits of a /grouped/ counter style. The integer specifies the rank to which these symbols apply (supporting productions like 50 => "fifty"). | symbols: <symbol>+ Specifies the symbols to use for any digit position. If there are 10 or more, those are special cases for the numbers 10 and above. [This is to support productions such as 11 => "eleven"]. Only symbols 0 - 9 are used in any rank. | rank-symbols: <symbol>+ Specifies the symbols to use to signify a given rank (e.g. the units, tens, hundreds and thousands digits). | group-symbols: <symbol>+ Specifies the symbols used to signify the current group of digits. That is, the current block of /order/ digits counting from right to left starting at 0. ----- References 1. http://www.geez.org/Numerals/ 2. http://www.koreanfluent.com/cross_cultural/korean_numbers/korean_numbers.htm Thanks, - Reece

Received on Thursday, 21 February 2013 12:09:26 UTC