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RE: [UAX29] i18n comment 3: Defining intended uses for grapheme clusters

From: Richard Ishida <ishida@w3.org>
Date: Fri, 7 Mar 2008 14:14:37 -0000
To: <ishida@w3.org>, <public-i18n-core@w3.org>
Message-ID: <005701c8805d$94519eb0$bcf4dc10$@org>

While it stops short of defining and organizing the material around use
cases and how to formally respond to them, the text now reads much much
better, and the additions almost achieve the approach we wanted. Perhaps if
we want to push for a more use-case oriented approach we should try for the
next revision.


Richard Ishida
Internationalization Lead
W3C (World Wide Web Consortium)


> -----Original Message-----
> From: public-i18n-core-request@w3.org [mailto:public-i18n-core-
> request@w3.org] On Behalf Of ishida@w3.org
> Sent: 07 March 2008 11:32
> To: public-i18n-core@w3.org
> Subject: [UAX29] i18n comment 3: Defining intended uses for grapheme
> clusters
> Comment from the i18n review of:
> http://www.unicode.org/reports/tr29/tr29-12.html
> Comment 3
> At http://www.w3.org/International/reviews/0801-uax29/
> Editorial/substantive: S/E
> Tracked by: RI
> Location in reviewed document:
> 3 [http://www.unicode.org/reports/tr29/tr29-
> 12.html#Grapheme_Cluster_Boundaries]
> Comment:
> para starting
> "Grapheme clusters are important for..."
> We would like to see this para significantly expanded to provide a more
> complete list of potential applications for the grapheme cluster. This
> information is rather scattered around the section. Eg. mouse selection,
> cursor movement and backspace (and presumably delete) are mentioned later.
> We feel that this will not only help readers understand the concepts in
> the section, but to more formally list the intended applications of these
> rules before defining a solution for them will also help better establish
> the required features of default grapheme clusters that need to be
> At the moment the document reads as if we have a solution looking for an
> application, rather than a set of use cases for which we are providing a
> solution.
> Note that applications we have come across recently include segmentation
> for vertical text and identification of boundaries for first-letter
> styling (which could be said to be a type of highlighting). (Segmentation
> of indic and south-east asian scripts for these applications is done on a
> syllabic basis. See examples at
> http://www.flickr.com/photos/ishida/2212584968/
> [http://www.flickr.com/photos/ishida/2212584968/]
>  and
> http://www.w3.org/International/notes/firstletter.html
> [http://www.w3.org/International/notes/firstletter.html]
>  )
Received on Friday, 7 March 2008 14:11:21 UTC

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