- From: ISHIZAKI Tooru <ishizaki.tooru@canon.co.jp>
- Date: Wed, 28 Jan 2009 14:28:32 +0900
- To: <john.schneider@agiledelta.com>, <public-exi-comments@w3.org>
- Cc: <youenn.fablet@crf.canon.fr>, <fujisawa.jun@canon.co.jp>
Dear John-san, and WG members, Thank you for the detailed explanation. We would like to know more preciselly the advantage of the local-element-ns. Could you show me the most affected xml sample? Is there significant difference of the compactness between below two samples? <sample xmlns:pref1="www.sample.org"> <pref1:name1 /> </sample> and <sample> <pref1:name1 xmlns:pref1="www.sample.org"/> </sample> Best Regards, Tooru Ishizaki. > Dear Tooru, > > Thank you for your feedback on the EXI specification. This is a very good > question. > > The advantage of the local-element-ns flag is improved compactness for > representing element QNames when Preserve.prefixes is true. Without the > local-element-ns flag, the prefix encoding for each element QName would have > to account for the possibility that the prefix is declared by an NS event > that follows the associated SE event (i.e., a prefix that has not yet been > encountered in the stream). In the common case, where there is only one > prefix declared for each namespace, the prefix encoding would increase from > zero bits per element to one bit per element. If there were two prefixes > declared for each namespace, the prefix encoding would increase from one bit > per element to two bits per element. Since there can be a lot of SE events > in a document, this can have a significant impact on compactness. > > I hope this helps to answer your question. > > Thanks again, > > John Schneider > AgileDelta, Inc. > http://www.agiledelta.com > > > -----Original Message----- > > From: public-exi-comments-request@w3.org > > [mailto:public-exi-comments-request@w3.org] On Behalf Of > > ISHIZAKI Tooru > > Sent: Thursday, November 06, 2008 2:33 AM > > To: public-exi-comments@w3.org > > Cc: youenn.fablet@crf.canon.fr; fujisawa.jun@canon.co.jp > > Subject: Feedback of EXI specification 2 > > > > > > Dear EXI members, > > > > I have a feedback of EXI specification. > > In chapter 4, what's the advantage of local-element-ns flag? > > > > Best Regrads, > > Tooru Ishizaki. > > > > -- > > TOORU Ishizaki <ishizaki.tooru@canon.co.jp> > > > > > > -- TOORU Ishizaki <ishizaki.tooru@canon.co.jp>
Received on Wednesday, 28 January 2009 05:24:12 UTC