<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">keep in mind that the Mappings document is NOT normative. It is intended to give some ideas for localization and pre-processing. The important point is that only U+002E will be recognized in protocol as a label separator. For purposes of exchanging IDNs, that's important. For local contexts, one might allow alternative full-stop inputs but these would need to be converted to the U+002E form prior to initiating a DNS query. It would probably be wise also to convert to U+002E for purposes of canonical exchange of domain names with other parties. <div><br></div><div>For Pete Resnick and Paul Hoffman:</div><div><br></div><div>this email might be interpreted as a request to add U+06D4 to the Mappings list of potential local mappings to U+002E. Have you an opinion whether this edit would be appropriate?</div><div><br></div><div>vint</div><div><br></div><div><br></div><div><br><div><div>On Oct 11, 2009, at 9:52 AM, Sarmad Hussain wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div lang="EN-US" link="blue" vlink="purple"><div class="Section1"><div style="margin-top: 0in; margin-right: 0in; margin-bottom: 0.0001pt; margin-left: 0in; font-size: 11pt; font-family: Calibri, sans-serif; "><o:p> </o:p></div><div style="margin-top: 0in; margin-right: 0in; margin-bottom: 0.0001pt; margin-left: 0in; font-size: 11pt; font-family: Calibri, sans-serif; ">In earlier discussions on U+06D4 (ARABIC FULL STOP), which is necessary for Urdu as a label separator (the reasons have been given on this list earlier), it was suggested that the various full stops will not be allowed and be mapped. It was subsequently requested to include the mapping reference in IDNA200x documents to ensure that the application providers incorporate it, but the request was not considered positively as it was perhaps suggested that such recommendations can not be made part of the protocol. However, the recent mapping document (<a href="http://tools.ietf.org/html/draft-ietf-idnabis-mappings-04" style="color: blue; text-decoration: underline; ">http://tools.ietf.org/html/draft-ietf-idnabis-mappings-04</a>) says on pg. 2:<o:p></o:p></div><div style="margin-top: 0in; margin-right: 0in; margin-bottom: 0.0001pt; margin-left: 0in; font-size: 11pt; font-family: Calibri, sans-serif; "><o:p> </o:p></div><pre style="margin-top: 0in; margin-right: 0in; margin-bottom: 0.0001pt; margin-left: 0in; font-size: 10pt; font-family: 'Courier New'; page-break-before: always; "><span style="font-size: 12pt; color: black; "> 4. [<a href="http://tools.ietf.org/html/draft-ietf-idnabis-mappings-04#ref-I-D.ietf-idnabis-protocol" title=""Internationalized Domain Names in Applications (IDNA): Protocol"" style="color: blue; text-decoration: underline; ">I-D.ietf-idnabis-protocol</a>] is specified such that the protocol<o:p></o:p></span></pre><pre style="margin-top: 0in; margin-right: 0in; margin-bottom: 0.0001pt; margin-left: 0in; font-size: 10pt; font-family: 'Courier New'; page-break-before: always; "><span style="font-size: 12pt; color: black; "> acts on the indvidual labels of the domain name. If an<o:p></o:p></span></pre><pre style="margin-top: 0in; margin-right: 0in; margin-bottom: 0.0001pt; margin-left: 0in; font-size: 10pt; font-family: 'Courier New'; page-break-before: always; "><span style="font-size: 12pt; color: black; "> implementation of this mapping is also performing the step of<o:p></o:p></span></pre><pre style="margin-top: 0in; margin-right: 0in; margin-bottom: 0.0001pt; margin-left: 0in; font-size: 10pt; font-family: 'Courier New'; page-break-before: always; "><span style="font-size: 12pt; color: black; "> separation of the parts of a domain name into labels by using the<o:p></o:p></span></pre><pre style="margin-top: 0in; margin-right: 0in; margin-bottom: 0.0001pt; margin-left: 0in; font-size: 10pt; font-family: 'Courier New'; page-break-before: always; "><span style="font-size: 12pt; color: black; "> FULL STOP character (U+002E), the following character can be<o:p></o:p></span></pre><pre style="margin-top: 0in; margin-right: 0in; margin-bottom: 0.0001pt; margin-left: 0in; font-size: 10pt; font-family: 'Courier New'; page-break-before: always; "><span style="font-size: 12pt; color: black; "> mapped to the FULL STOP before label separation occurs:<o:p></o:p></span></pre><pre style="margin-top: 0in; margin-right: 0in; margin-bottom: 0.0001pt; margin-left: 0in; font-size: 10pt; font-family: 'Courier New'; page-break-before: always; "><span style="font-size: 12pt; color: black; "><o:p> </o:p></span></pre><pre style="margin-top: 0in; margin-right: 0in; margin-bottom: 0.0001pt; margin-left: 0in; font-size: 10pt; font-family: 'Courier New'; page-break-before: always; "><span style="font-size: 12pt; color: black; "> * IDEOGRAPHIC FULL STOP (U+3002)<o:p></o:p></span></pre><pre style="margin-top: 0in; margin-right: 0in; margin-bottom: 0.0001pt; margin-left: 0in; font-size: 10pt; font-family: 'Courier New'; page-break-before: always; "><span style="font-size: 12pt; color: black; "><o:p> </o:p></span></pre><pre style="margin-top: 0in; margin-right: 0in; margin-bottom: 0.0001pt; margin-left: 0in; font-size: 10pt; font-family: 'Courier New'; page-break-before: always; "><span style="font-size: 12pt; color: black; "> There are other characters that are used as "full stops" that one<o:p></o:p></span></pre><pre style="margin-top: 0in; margin-right: 0in; margin-bottom: 0.0001pt; margin-left: 0in; font-size: 10pt; font-family: 'Courier New'; page-break-before: always; "><span style="font-size: 12pt; color: black; "> could consider mapping as label separators, but their use as such<o:p></o:p></span></pre><pre style="margin-top: 0in; margin-right: 0in; margin-bottom: 0.0001pt; margin-left: 0in; font-size: 10pt; font-family: 'Courier New'; page-break-before: always; "><span style="font-size: 12pt; color: black; "> has not been investigated thoroughly.<o:p></o:p></span></pre><div style="margin-top: 0in; margin-right: 0in; margin-bottom: 0.0001pt; margin-left: 0in; font-size: 11pt; font-family: Calibri, sans-serif; "><o:p> </o:p></div><div style="margin-top: 0in; margin-right: 0in; margin-bottom: 0.0001pt; margin-left: 0in; font-size: 11pt; font-family: Calibri, sans-serif; ">If this is being explicitly done for U+3002, it could be done explicitly for ARABIC FULL STOP (U+06D4) as well. What is the reason for not including other such possible cases explicitly?<o:p></o:p></div><div style="margin-top: 0in; margin-right: 0in; margin-bottom: 0.0001pt; margin-left: 0in; font-size: 11pt; font-family: Calibri, sans-serif; "><o:p> </o:p></div><div style="margin-top: 0in; margin-right: 0in; margin-bottom: 0.0001pt; margin-left: 0in; font-size: 11pt; font-family: Calibri, sans-serif; ">Regards,<br>Sarmad<o:p></o:p></div></div><br><br>__________ Information from ESET NOD32 Antivirus, version of virus signature database 3811 (20090129) __________<br><br>The message was checked by ESET NOD32 Antivirus.<br><br><a href="http://www.eset.com" style="color: blue; text-decoration: underline; ">http://www.eset.com</a><br>_______________________________________________<br>Idna-arabicscript mailing list<br>Arabic Script IDN Working Group (ASIWG)<br><a href="mailto:Idna-arabicscript@lists.irnic.ir" style="color: blue; text-decoration: underline; ">Idna-arabicscript@lists.irnic.ir</a><br><a href="http://lists.irnic.ir/mailman/listinfo/idna-arabicscript" style="color: blue; text-decoration: underline; ">http://lists.irnic.ir/mailman/listinfo/idna-arabicscript</a><br></div></span></blockquote></div><br></div></body></html>