attachment-0001
<html><head><base href="x-msg://230/"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>Pete,</div><div><br></div>From today's Cloud conference call we decided on "preferred-attributes" (collection) as the IPP attribute name and "PreferredElements" (group) for the XML schema. The IPP attribute will be returned in the unsupported attributes group.<div><br><div><div><br></div><div>On Jan 15, 2012, at 9:21 AM, Zehler, Peter wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; font-family: Geneva; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-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; font-size: medium; "><div lang="EN-US" link="blue" vlink="purple"><div class="WordSection1" style="page: WordSection1; "><div style="margin-top: 0in; margin-right: 0in; margin-left: 0in; margin-bottom: 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; ">Why do we have a bunch of xxx-preferred attributes? It complicates the model with a bunch of attributes and is not general purpose enough to address all the possible conflicting attributes and values.<o:p></o:p></div><div style="margin-top: 0in; margin-right: 0in; margin-left: 0in; margin-bottom: 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; "><o:p> </o:p></div><div style="margin-top: 0in; margin-right: 0in; margin-left: 0in; margin-bottom: 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; ">Is there any reason we cannot provide this functionality in a manner similar to “unsupported-attributes”. The “unsupported-attributes” is handled in IPP as an out of band group in an IPP response. We could extend the encoding of out of band attributes to include a new group for “xxx-preferred” . That way any substituted or conflicting attributes and values could be returned for a Validate operation.<o:p></o:p></div><div style="margin-top: 0in; margin-right: 0in; margin-left: 0in; margin-bottom: 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; "><o:p></o:p></div><div style="margin-top: 0in; margin-right: 0in; margin-left: 0in; margin-bottom: 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; ">I would prefer to handle “xxx-preferred” using the collection syntax. I think it is easier and requires fewer changes to the IPP encoding. Defining “attributes-preferred” as a collection of attributes and permitting any template attributes to be included would be a simple generalization. It would also allow a client to pick those attribute/values out to correct their request and not rely on printer substitution.<o:p></o:p></div><div style="margin-top: 0in; margin-right: 0in; margin-left: 0in; margin-bottom: 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; "><span style="color: rgb(31, 73, 125); "><o:p> </o:p></span></div><div style="margin-top: 0in; margin-right: 0in; margin-left: 0in; margin-bottom: 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; "><span style="font-family: Impact, sans-serif; color: navy; ">Peter Zehler</span><span style="color: rgb(31, 73, 125); "><br><br></span><span style="font-size: 10pt; font-family: Tahoma, sans-serif; color: navy; ">Xerox Research Center Webster<br></span><span style="font-size: 10pt; font-family: Arial, sans-serif; color: navy; ">Email:<span class="Apple-converted-space"> </span><a href="mailto:Peter.Zehler@Xerox.com" style="color: blue; text-decoration: underline; "><span style="color: blue; ">Peter.Zehler@Xerox.com</span></a></span><span style="color: rgb(31, 73, 125); "><br></span><span style="font-size: 10pt; font-family: Arial, sans-serif; color: navy; ">Voice: (585) 265-8755</span><span style="color: rgb(31, 73, 125); "><br></span><span style="font-size: 10pt; font-family: Arial, sans-serif; color: navy; ">FAX: (585) 265-7441</span><span style="color: rgb(31, 73, 125); "><br></span><span style="font-size: 10pt; font-family: Arial, sans-serif; color: navy; ">US Mail: Peter Zehler</span><span style="color: rgb(31, 73, 125); "><br></span><span style="font-size: 10pt; font-family: Arial, sans-serif; color: navy; ">Xerox Corp.</span><span style="color: rgb(31, 73, 125); "><br></span><span style="font-size: 10pt; font-family: Arial, sans-serif; color: navy; ">800 Phillips Rd.</span><span style="color: rgb(31, 73, 125); "><br></span><span style="font-size: 10pt; font-family: Arial, sans-serif; color: navy; ">M/S 128-25E</span><span style="color: rgb(31, 73, 125); "><br></span><span style="font-size: 10pt; font-family: Arial, sans-serif; color: navy; ">Webster NY, 14580-9701</span><span style="color: rgb(31, 73, 125); "></span><span style="font-size: 12pt; font-family: 'Times New Roman', serif; color: rgb(31, 73, 125); "><o:p></o:p></span></div><div style="margin-top: 0in; margin-right: 0in; margin-left: 0in; margin-bottom: 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; "><o:p> </o:p></div></div><br>--<span class="Apple-converted-space"> </span><br>This message has been scanned for viruses and<span class="Apple-converted-space"> </span><br>dangerous content by<span class="Apple-converted-space"> </span><a href="http://www.mailscanner.info/" style="color: blue; text-decoration: underline; "><b>MailScanner</b></a>, and is<span class="Apple-converted-space"> </span><br>believed to be clean. _______________________________________________<br>ipp mailing list<br><a href="mailto:ipp@pwg.org" style="color: blue; text-decoration: underline; ">ipp@pwg.org</a><br><a href="https://www.pwg.org/mailman/listinfo/ipp" style="color: blue; text-decoration: underline; ">https://www.pwg.org/mailman/listinfo/ipp</a><br></div></span></blockquote></div><br><div>
<span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Geneva; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-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; font-size: medium; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Geneva; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; 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; font-size: medium; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Geneva; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; 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; font-size: medium; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Monaco; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; 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 style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>________________________________________________________________________</div><div>Michael Sweet, Senior Printing System Engineer, PWG Chair</div></div></span></div></span></div></span></span>
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