<html> <head> <meta content="text/html; charset=UTF-8" http-equiv="Content-Type"> </head> <body bgcolor="#FFFFFF" text="#000000"> I do not think Unicode organization has a standard for any subsets, because their goal is to define the total scope. It also means, we can create a must-have subset from practice. My suggestion is to compare all open source Emoji fonts available on Linux, choose the common symbols they contain. Here is the list of open source Emoji fonts I found: <ol> <li>EmojiOne </li> <li>Twemoji</li> <li>Noto Emoji / Google Emoji / Android Emoji (Same thing on different products) </li> </ol> The most popular Emoji fonts could be: <ol> <li>Apple Emoji</li> <li>Google Emoji / Android Emoji / Noto Emoji</li> <li>Twitter Emoji</li> <li>EmojiOne</li> <li>Facebook Emoji</li> <li>Samsung Emoji</li> </ol> Others, like DoCoMo, KDDI and SoftBank emojis, might never be used on Linux desktop systems. Solution 1: Unicode Emoji 3.0 From my test result, these fonts contains all characters of Unicode Emoji 3.0 ( <a class="moz-txt-link-freetext" href="http://unicode.org/emoji/charts/full-emoji-list.html">http://unicode.org/emoji/charts/full-emoji-list.html</a> ) . So I think Unicode Emoji 3.0 could be such a subset of Emoji and it fits all existing Emoji fonts that Linux users might use. Solution 2: Intersection of Apple, Google, Twitter, EmojiOne, Facebook, Samsung Emoji fonts This is a much smaller subset of current Emojis. It should covered all emojis that people frequently use. That is why they are included by all important communication services. What do you think? <div class="moz-cite-prefix">在 2016年09月08日 03:44, suzuki toshiya 写道: </div> <blockquote cite="mid:57D0B45A.2040702@hiroshima-u.ac.jp" type="cite"> <pre wrap="">Oops, </pre> <blockquote type="cite"> <pre wrap="">cellarphone. However, I don't think recent emoji pushers do not care about this subset. </pre> </blockquote> <pre wrap=""> I mean: however, I don't think recent emoji pushers care about this subset. Regards, mpsuzuki suzuki toshiya wrote:: </pre> <blockquote type="cite"> <pre wrap="">Dear Tagoh-san, One of the recognizable subset would be the set to interchange original "emoji" used by legacy Japanese cellarphone. However, I don't think recent emoji pushers do not care about this subset. To consider other new emojis, should we ask for the comments from Unicode (or ISO/IEC JTC1/SC2/WG2) experts, to define the subset to judge whether the font is sufficient to use to display emojis. Also I'm interested in that fontconfig is expected to pick the font supporting color glyphs, and/or, supporting VS to display existing symbols with emoji- style. Regards, mpsuzuki Akira TAGOH wrote:: </pre> <blockquote type="cite"> <pre wrap="">Well, you may misunderstood my question. let me rephrase. the question is, is a font required to contain all of them to say "our fonts support emoji" or to indicate that in fontconfig? and how many emoji fonts has supported all of them at this moment? in other words, if a font is more or less missing them, it won't be recognized as emoji-aware. I don't see any mention about it there at least. .orth files in fontconfig doesn't contain all of Unicode code points which is used in those languages because some of them isn't often used and may not be implemented for priority etc. On Wed, Sep 7, 2016 at 8:30 PM, Guo Yunhe <<a class="moz-txt-link-abbreviated" href="mailto:guoyunhebrave@gmail.com">guoyunhebrave@gmail.com</a> <a class="moz-txt-link-rfc2396E" href="mailto:guoyunhebrave@gmail.com"><mailto:guoyunhebrave@gmail.com></a>> wrote: Here is the official define of emoji characters. (Opening this page may hang your browser for a while!!!) <a class="moz-txt-link-freetext" href="http://unicode.org/emoji/charts/full-emoji-list.html">http://unicode.org/emoji/charts/full-emoji-list.html</a> <a class="moz-txt-link-rfc2396E" href="http://unicode.org/emoji/charts/full-emoji-list.html"><http://unicode.org/emoji/charts/full-emoji-list.html></a> Hope it would be helpful. 在 2016年09月07日 14:21, Akira TAGOH 写道: </pre> <blockquote type="cite"> <pre wrap=""> The problem on that idea is how to figure out what the minimal coverage in emoji block. at this point, the minimal glyph coverage for langs are defined in fc-lang/*.orth and cache files contains lang property only which fonts satisfies the coverage for. if there are any specs defining a must or an optional to have, that may be helpful otherwise we may need to think about another idea for that. maybe good to have a property in a cache to indicate if a font has an emoji or not, and we could leave the way to use it to applications perhaps. On Wed, Sep 7, 2016 at 4:28 PM, Guo Yunhe <<a class="moz-txt-link-abbreviated" href="mailto:guoyunhebrave@gmail.com">guoyunhebrave@gmail.com</a> <a class="moz-txt-link-rfc2396E" href="mailto:guoyunhebrave@gmail.com"><mailto:guoyunhebrave@gmail.com></a>> wrote: Hi, I recently studied some emoji fonts. These emoji fonts have fontconfig difficulties when packaging. They try to set the font as default emoji font but do not affect others. Usually the font has a separated configure file. <match> <test name="family"> <string>sans-serif</string> </test> <edit binding="strong" name="family"> <string>Nimbus Sans L</string> <string>EmojiOne Color</string> </edit> </match> However, this will affect sans-serif font settings of other font packages or users' setting, because the package do not know which sans-serif font users want to use. I suggest maybe we can map the Unicode emoji block as test condition. Just like when we set a Japanese font, it won't affect English and Arabic fonts. <match> <test name="family"> <string>sans-serif</string> </test> <test name="lang"> <string>emoji</string> </test> <edit binding="strong" name="family"> <string>EmojiOne Color</string> </edit> </match> -- Guo Yunhe _______________________________________________ Fontconfig mailing list <a class="moz-txt-link-abbreviated" href="mailto:Fontconfig@lists.freedesktop.org">Fontconfig@lists.freedesktop.org</a> <a class="moz-txt-link-rfc2396E" href="mailto:Fontconfig@lists.freedesktop.org"><mailto:Fontconfig@lists.freedesktop.org></a> <a class="moz-txt-link-freetext" href="https://lists.freedesktop.org/mailman/listinfo/fontconfig">https://lists.freedesktop.org/mailman/listinfo/fontconfig</a> <a class="moz-txt-link-rfc2396E" href="https://lists.freedesktop.org/mailman/listinfo/fontconfig"><https://lists.freedesktop.org/mailman/listinfo/fontconfig></a> -- Akira TAGOH </pre> </blockquote> <pre wrap=""> -- Guo Yunhe -- Akira TAGOH </pre> </blockquote> <pre wrap=""> </pre> </blockquote> <pre wrap=""> </pre> </blockquote> <div class="moz-signature">-- Guo Yunhe</div> </body> </html>