- From: Loretta Guarino Reid <lorettaguarino@google.com>
- Date: Sun, 5 Oct 2008 22:00:15 -0700
- To: "Makoto Ueki" <makoto.ueki@gmail.com>
- Cc: public-comments-wcag20@w3.org
On Tue, Sep 16, 2008 at 11:27 AM, WCAG 2.0 Comment Form <nobody@w3.org> wrote: > > > Name: Makoto Ueki > Email: makoto.ueki@gmail.com > Affiliation: JIS Working Group > Document: W2 > Item Number: Success Criterion 1.4.8 > Part of Item: > Comment Type: question > Summary of Issue: glyph for English > Comment (Including rationale for any proposed change): > In English, does glyph include %, $, &, @, # and so on? For "33%" as an example, "33" is character and "%" is glyph? > > Proposed Change: > Just to confirm the answers from WCAG WG. > > ================================ Response from the Working Group ================================ The differences between these terms can be somewhat confusing. Perhaps the following definitions (from wikipedia) will help. - a grapheme is the fundamental unit in written language. Graphemes include alphabetic letters, Chinese characters, numerals, punctuation marks, and all the individual symbols of any of the world's writing systems. - a character is a unit of information that roughly corresponds to a grapheme - a glyph is the shape given in a particular typeface to a specific grapheme or symbol Another useful resource that may help in understanding this topic is: FAQ: Character encodings for beginners: http://www.w3.org/International/questions/qa-what-is-encoding In your example, all of the items mentioned (%, $, &, @, #, 33%) would be both characters and glyphs because the association between their shape and the information the shapes represent are intact. If however, you were to create a font where the character mapping for the letter "b" was associated with a glyph that was a picture of a fish, then you would have something that is a glyph, but not a character. Another resource that may be helpful is http://ja.wikipedia.org/wiki/%E5%AD%97%E4%BD%93 Loretta Guarino Reid, WCAG WG Co-Chair Gregg Vanderheiden, WCAG WG Co-Chair Michael Cooper, WCAG WG Staff Contact On behalf of the WCAG Working Group
Received on Monday, 6 October 2008 05:00:56 UTC