<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> </head> <body><div class="auto-created-dir-div" dir="auto" style="unicode-bidi: embed;"><style>p{margin:0}</style><p>An interesting discussion about glasses emoji is taking place in the Unicode public mailing list.</p><p><br></p><p>https://corp.unicode.org/pipermail/unicode/2022-October/date.html<br></p><p><br></p><p>Thinking about this, earlier this morning here in England I adapted one of my own fonts to add some additional glyphs to run a test, and it worked. I used the High-Logic FontCreator program to make the font and Serif Affinity Publisher to run the test.</p><p><br></p><p>The font that I adapted is the Mariposa.otf font that is available from the following web page, though in fact I started with a copy of the unpublished High-Logic project file for the font.</p><p><br></p><p>http://www.users.globalnet.co.uk/~ngo/mariposa_novel.htm<br></p><p><br></p><p>To the font I added glyphs for three Unicode characters and for one unmapped glyph.</p><p><br></p><p>U+200D ZERO WIDTH JOINER though I used a wide visible glyph design</p><p><br></p><p>U+1F453 EYEGLASSES</p><p><br></p><p>U+1F469 WOMAN</p><p><br></p><p>unmapped ceyeglasses, a copy of the glyph used for eyeglasses, moved 2048 font units to the left and the glyph having zero advance width.</p><p><br></p><p>Within the liga table I added the following line.</p><p><br></p><p> sub uni200D u1F453 -> ceyeglasses;</p><p><br></p><p>that is, for "combining eyeglasses".</p><p><br></p><p>Please note that the substitution starts with a ZERO WIDTH JOINER</p><p><br></p><p>In the test in Affinity Publisher I used the Glyph Browser to enter the three characters</p><p><br></p><p>U+1F469 U+200D U+1F4F3</p><p><br></p><p>and the result displayed was of a woman wearing the eyeglasses as the display was of the glyph for WOMAN with the glyph for ceyeglasses superimposed upon it.</p><p><br></p><p>So if it is valid to use a glyph substitution with a leading ZWJ in this way then the issue appears to be solved.</p><p><br></p><p><span style="display: inline !important;">Is it valid to use a glyph substitution with a leading ZWJ in this way please?</span><br></p><p><br></p><p>One could go further with a sequence also involving a pink square and a large circle to produce stylish large round pink rimmed glasses for the lady to be wearing.</p><p><br></p><p>Indeed the technique could be adapted so that the lady is also wearing a U+1F452 WOMANS HAT in a stylish purple colour.</p><p><br></p><p>William Overington</p><p><br></p><p>Friday 14 October 2022</p><p><br></p><p><br></p></div></body></html>