<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 14 (filtered medium)">
<!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style><![endif]--><style><!--
/* Font Definitions */
@font-face
{font-family:Wingdings;
panose-1:5 0 0 0 0 0 0 0 0 0;}
@font-face
{font-family:Wingdings;
panose-1:5 0 0 0 0 0 0 0 0 0;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:Consolas;
panose-1:2 11 6 9 2 2 4 3 2 4;}
@font-face
{font-family:Verdana;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#1E66AE;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#1E66AE;
text-decoration:underline;}
p
{mso-style-priority:99;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
code
{mso-style-priority:99;
font-family:"Courier New";}
pre
{mso-style-priority:99;
mso-style-link:"HTML Preformatted Char";
margin:0in;
margin-bottom:.0001pt;
font-size:10.0pt;
font-family:"Courier New";}
tt
{mso-style-priority:99;
font-family:"Courier New";}
p.MsoAcetate, li.MsoAcetate, div.MsoAcetate
{mso-style-priority:99;
mso-style-link:"Balloon Text Char";
margin:0in;
margin-bottom:.0001pt;
font-size:8.0pt;
font-family:"Tahoma","sans-serif";}
p.MsoListParagraph, li.MsoListParagraph, div.MsoListParagraph
{mso-style-priority:34;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
span.HTMLPreformattedChar
{mso-style-name:"HTML Preformatted Char";
mso-style-priority:99;
mso-style-link:"HTML Preformatted";
font-family:Consolas;}
p.attach, li.attach, div.attach
{mso-style-name:attach;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:9.0pt;
font-family:"Arial","sans-serif";}
p.bold, li.bold, div.bold
{mso-style-name:bold;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:10.0pt;
font-family:"Arial","sans-serif";
font-weight:bold;}
p.green, li.green, div.green
{mso-style-name:green;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:12.0pt;
font-family:"Times New Roman","serif";
color:#628C2A;}
p.replbq, li.replbq, div.replbq
{mso-style-name:replbq;
margin:3.0pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
p.ad, li.ad, div.ad
{mso-style-name:ad;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
p.underline, li.underline, div.underline
{mso-style-name:underline;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
span.yshortcuts
{mso-style-name:yshortcuts;}
p.ad1, li.ad1, div.ad1
{mso-style-name:ad1;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
p.ad2, li.ad2, div.ad2
{mso-style-name:ad2;
mso-margin-top-alt:auto;
margin-right:0in;
margin-bottom:7.5pt;
margin-left:0in;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
p.underline1, li.underline1, div.underline1
{mso-style-name:underline1;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:12.0pt;
font-family:"Times New Roman","serif";
text-decoration:underline;}
span.yshortcuts1
{mso-style-name:yshortcuts1;
font-family:"Verdana","sans-serif";
font-weight:bold;}
span.yshortcuts2
{mso-style-name:yshortcuts2;
font-family:"Verdana","sans-serif";
font-weight:normal;}
span.EmailStyle35
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
span.BalloonTextChar
{mso-style-name:"Balloon Text Char";
mso-style-priority:99;
mso-style-link:"Balloon Text";
font-family:"Tahoma","sans-serif";}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
/* List Definitions */
@list l0
{mso-list-id:801268651;
mso-list-template-ids:-914687722;}
@list l0:level1
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l0:level2
{mso-level-number-format:bullet;
mso-level-text:o;
mso-level-tab-stop:1.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:"Courier New";
mso-bidi-font-family:"Times New Roman";}
@list l0:level3
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:1.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Wingdings;}
@list l0:level4
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:2.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Wingdings;}
@list l0:level5
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:2.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Wingdings;}
@list l0:level6
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:3.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Wingdings;}
@list l0:level7
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:3.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Wingdings;}
@list l0:level8
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:4.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Wingdings;}
@list l0:level9
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:4.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Wingdings;}
ol
{margin-bottom:0in;}
ul
{margin-bottom:0in;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body bgcolor="white" lang="EN-US" link="#1E66AE" vlink="#1E66AE">
<div class="WordSection1">
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Vlad, thank you for all your hard work. Microsoft would like to voice support for the new feature proposed by John Hudson, “Required Contextual Alternates”.
(<a href="http://tech.groups.yahoo.com/group/mpeg-OTspec/message/411">http://tech.groups.yahoo.com/group/mpeg-OTspec/message/411</a>)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">We’ve spoken with John offline and drafted a feature description:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Tag: 'rclt'<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Friendly name: Required Contextual Alternates<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Registered by: Microsoft / Tiro Typeworks<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Function: In specified situations, replaces default glyphs with alternate forms which provide for better joining behavior or other glyph relationships. Especially
important in 'script' typefaces which are designed to have some or all of their glyphs join, but applicable also to e.g. variants to improve spacing. This feature is similar to 'calt', but with the difference that it should not be possible to turn off 'rclt'
substitutions: they are considered essential to correct layout of the font.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Example: In an Arabic calligraphic font the 'rclt' feature is used to contextually substitute variant forms of letters sin and yeh providing for a correct join
between these two letters that differs from the default join of either to other letters.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Recommended implementation: The rclt table specifies the context in which each substitution occurs, and maps one or more default glyphs to replacement glyphs
(GSUB lookup type 6).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Application interface: The application passes sequences of GIDs to the feature table, and gets back new GIDs. Note that full sequences must be passed.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">UI suggestion: This feature should be active by default. It is recommended that this feature not be turned off, to avoid breaking obligatory shaping.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Script/language sensitivity: May apply to any script, but is especially important for many styles of Arabic.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Feature interaction: This feature may be used in combination with other substitution (GSUB) features, whose results it may override. For complex scripts, lookups
for this feature should be ordered and processed after basic script and language shaping features.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">John has also created an illustration which I’ll upload to the Yahoo Group site.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thank you,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Michelle<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> mpeg-OTspec@yahoogroups.com [mailto:mpeg-OTspec@yahoogroups.com]
<b>On Behalf Of </b>Levantovsky, Vladimir<br>
<b>Sent:</b> Wednesday, July 25, 2012 12:31 PM<br>
<b>To:</b> OTspec<br>
<b>Subject:</b> [mpeg-OTspec] New work on 3rd edition of the OFF (AHG kick-off)<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<div id="ygrp-mlmsg">
<div id="ygrp-msg">
<div id="ygrp-text">
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Dear AHG members,<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">With this kick-off message, I would like to announce the start of the new work on the 3<sup>rd</sup> edition of the ISO/IEC 14496-22 “Open Font Format” that was approved at the
MPEG meeting last week. I will create a new working draft merging the base document (previous 2<sup>nd</sup> edition version from 2009) with all changes that were introduced by amendments and corrigendum and will make the new text available for you to review
and comment.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I would also like to ask you to start thinking about new features, functionality and clarifications that you would like to propose to improve the text of the standard. In particular,
I would like us to review the proposals that have already been submitted to this AHG in recent couple of years and discuss whether it would be reasonable and useful to incorporate them into the current working draft text. For this purpose, I have collected
the references to member posts outlining newly proposed items (my apologies if I missed any, please review and contribute your ideas):<o:p></o:p></p>
<p class="MsoListParagraph">-<span style="font-size:7.0pt"> </span>OTL feature suggestion: Required Contextual Forms <rclt> (<a href="http://tech.groups.yahoo.com/group/mpeg-OTspec/message/411">http://tech.groups.yahoo.com/group/mpeg-OTspec/message/411</a>)<o:p></o:p></p>
<p class="MsoListParagraph">-<span style="font-size:7.0pt"> </span>Quality of OT Layout Tag registry (<a href="http://tech.groups.yahoo.com/group/mpeg-OTspec/message/635">http://tech.groups.yahoo.com/group/mpeg-OTspec/message/635</a>)<o:p></o:p></p>
<p class="MsoListParagraph">-<span style="font-size:7.0pt"> </span>‘post’ table recommendations (<a href="http://tech.groups.yahoo.com/group/mpeg-OTspec/message/638">http://tech.groups.yahoo.com/group/mpeg-OTspec/message/638</a>)<o:p></o:p></p>
<p class="MsoListParagraph">-<span style="font-size:7.0pt"> </span>Stylistic Sets (<a href="http://tech.groups.yahoo.com/group/mpeg-OTspec/message/642">http://tech.groups.yahoo.com/group/mpeg-OTspec/message/642</a>)<o:p></o:p></p>
<p class="MsoListParagraph">-<span style="font-size:7.0pt"> </span>OTC filename extension (<a href="http://tech.groups.yahoo.com/group/mpeg-OTspec/message/643">http://tech.groups.yahoo.com/group/mpeg-OTspec/message/643</a>)<o:p></o:p></p>
<p class="MsoListParagraph">-<span style="font-size:7.0pt"> </span>Supporting Unicode properties for vertical text layout (<a href="http://tech.groups.yahoo.com/group/mpeg-OTspec/message/648">http://tech.groups.yahoo.com/group/mpeg-OTspec/message/648</a>)<o:p></o:p></p>
<p class="MsoListParagraph">-<span style="font-size:7.0pt"> </span>UTF encoding for ‘name’ table strings (<a href="http://tech.groups.yahoo.com/group/mpeg-OTspec/message/655">http://tech.groups.yahoo.com/group/mpeg-OTspec/message/655</a>)<o:p></o:p></p>
<p class="MsoListParagraph">-<span style="font-size:7.0pt"> </span>Renaming “preferred” family (<a href="http://tech.groups.yahoo.com/group/mpeg-OTspec/message/657">http://tech.groups.yahoo.com/group/mpeg-OTspec/message/657</a>)<o:p></o:p></p>
<p class="MsoListParagraph">-<span style="font-size:7.0pt"> </span>Panose field in OS/2 (<a href="http://tech.groups.yahoo.com/group/mpeg-OTspec/message/668">http://tech.groups.yahoo.com/group/mpeg-OTspec/message/668</a>) – recently resolved!<o:p></o:p></p>
<p class="MsoListParagraph">-<span style="font-size:7.0pt"> </span>‘name’ table update (<a href="http://tech.groups.yahoo.com/group/mpeg-OTspec/message/714">http://tech.groups.yahoo.com/group/mpeg-OTspec/message/714</a>)<o:p></o:p></p>
<p class="MsoListParagraph">-<span style="font-size:7.0pt"> </span>New 'cmap' format (<a href="http://tech.groups.yahoo.com/group/mpeg-OTspec/message/722">http://tech.groups.yahoo.com/group/mpeg-OTspec/message/722</a>)<o:p></o:p></p>
<p class="MsoListParagraph">-<span style="font-size:7.0pt"> </span>Vertical ligatures (<a href="http://tech.groups.yahoo.com/group/mpeg-OTspec/message/734">http://tech.groups.yahoo.com/group/mpeg-OTspec/message/734</a>)<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">FYI – the next MPEG meeting will take place on October 15-19.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Thank you,<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Vladimir<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
</div>
</div>
<div>
<p class="MsoNormal"><span style="color:white"><o:p></o:p></span></p>
</div>
</div>
</body>
</html>