<div dir="ltr"><div>Liang,</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">2020年8月6日(木) 19:12 梁海 Liang Hai <<a href="mailto:lianghai@gmail.com">lianghai@gmail.com</a>>:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div style="overflow-wrap: break-word;">The “compliance” talked about in the slides sounds a bit misguided.</div></blockquote><div><br></div><div style="background-color:transparent">It may well be. But this term was introduced by Source Han Sans.</div><div><br></div><div><a href="https://github.com/adobe-fonts/source-han-sans/raw/release/SourceHanSansReadMe.pdf">https://github.com/adobe-fonts/source-han-sans/raw/release/SourceHanSansReadMe.pdf</a><br></div><div><br></div><div style="background-color:transparent">This document suggests that all other fonts are NOT </div><div>UAX#59 compliant.</div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div style="overflow-wrap: break-word;"><div><br></div><div>The behavior specified by UAX #50 is a decent low-level default at most, and can’t address all the use cases. Therefore fonts naturally need to be diverse and address the flexibility required by typography.</div><div><br></div><div>The architectural problem is that, layout engines assume a predefined rotation property (based on UAX #50 or not) for characters, and there’s no reliable way to override that. The boundaries between rotated and upright runs even makes OTL a non-starter.</div></div></blockquote><div><br></div><div>Certainly, nothing is reliable. This is unfortunately the case right now. </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div style="overflow-wrap: break-word;"><div><br></div><div>Therefore we need to define and implement a mechanism that allows layout engines to resolve a glyph’s rotation property based on both a predefined dataset *and* the current font’s overriding.<br></div></div></blockquote><div><br></div><div>I am very interested in your suggestion and hope to hear more.</div><div><br></div><div>I heard that CSS border does not work for characters containing accents </div><div>when they appear in vertically written text. This is not surprising.</div><div><br></div><div>Regards,</div><div>Makoto</div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div style="overflow-wrap: break-word;"><div><div>
<br>Best,<br>梁海 Liang Hai<br><a href="https://lianghai.github.io" target="_blank">https://lianghai.github.io</a>
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<div><br><blockquote type="cite"><div>On Aug 6, 2020, at 07:37, MURATA Makoto <<a href="mailto:eb2m-mrt@asahi-net.or.jp" target="_blank">eb2m-mrt@asahi-net.or.jp</a>> wrote:</div><br><div><div dir="ltr">Folks,<div><br></div><div>This presentation explains typical problems around interactions </div><div>of fonts and vertical writing.</div><div><br></div><div><a href="https://1drv.ms/p/s!An5Z79wj5AZBgsdN2pd2XmS08WslZA?e=UM5O6K" target="_blank">https://1drv.ms/p/s!An5Z79wj5AZBgsdN2pd2XmS08WslZA?e=UM5O6K</a></div><div><br></div><div style="background-color:transparent">Japanese publishers are forced to use rasterized text, which hampers </div><div style="background-color:transparent">accessibility. I hope that the activities planned here help to make </div><div style="background-color:transparent">things better.</div><div style="background-color:transparent"><br></div><div>-- <br>Regards,<br>Makoto</div></div>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div>Regards,</div><div>Makoto</div></div></div></div>