<p><span style="font-family:Arial , sans-serif;font-size:18.0px;">Simon Cozens wrote as follows.</span></p><p><span style="font-family:Arial , sans-serif;font-size:18.0px;"> </span><br><span style="font-family:Arial , sans-serif;font-size:18.0px;">>  Suppose a many-to-many substitution is implemented with the lookupflag of "IgnoreMarks", and suppose also that there are marks in the input glyph sequence. It's not possible to determine how those marks should be distributed amongst the new set of glyphs produced by the substitution.</span></p><p><span style="font-family:Arial , sans-serif;font-size:18.0px;"> </span><br><span style="font-family:Arial , sans-serif;font-size:18.0px;">Thank you for replying.</span></p><p><span style="font-family:Arial , sans-serif;font-size:18.0px;"> </span><br><span style="font-family:Arial , sans-serif;font-size:18.0px;">I only know a little about OpenType, and I do not know what is meant by the marks to which reference is made.</span></p><p><span style="font-family:Arial , sans-serif;font-size:18.0px;">  </span><br><span style="font-family:Arial , sans-serif;font-size:18.0px;">However, the input sequence is characters, not glyphs, in the same way that the input sequence is characters in a liga table substitution rule.</span></p><p> <br><span style="font-family:Arial , sans-serif;font-size:18.0px;">I am thinking of the input sequence perhaps being in an email that has been received, though that is just one example of the possible applications of the idea.</span></p><p><span style="font-family:Arial , sans-serif;font-size:18.0px;"> </span><br><span style="font-family:Arial , sans-serif;font-size:18.0px;">Here is a link to a PDF slide show that I produced some time ago.</span></p><p><span style="font-family:Arial , sans-serif;font-size:18.0px;"> </span><br><a target="_blank" rel="noopener noreferrer" href="http://www.users.globalnet.co.uk/~ngo/slide_show_about_localizable_sentences.pdf"><span style="font-family:Arial , sans-serif;font-size:18.0px;">http://www.users.globalnet.co.uk/~ngo/slide_show_about_localizable_sentences.pdf</span></a></p><p><span style="font-family:Arial , sans-serif;font-size:18.0px;"> </span><br><span style="font-family:Arial , sans-serif;font-size:18.0px;">William Overington</span></p><p><span style="font-family:Arial , sans-serif;font-size:18.0px;"> </span><br><span style="font-family:Arial , sans-serif;font-size:18.0px;">Thursday 26 September 2024</span></p><p><span style="font-family:Arial , sans-serif;font-size:18.0px;"> </span></p>