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[css-text-3] Hang trailing collapsible other space separators instead of removing them #4290

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Merged
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Sep 16, 2019
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[css-text-3] Hang trailing collapsible other space separators instead of removing them #4290

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20 changes: 12 additions & 8 deletions css-text-3/Overview.bs
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Original file line number Diff line number Diff line change
Expand Up @@ -1595,18 +1595,12 @@ Text Processing</h3>
<li>A sequence at the end of a line
(ignoring any intervening <a>inline box</a> boundaries)
of <a>collapsible</a> [=spaces=]
and/or [=other space separators=] whose 'white-space' value collapses spaces
is removed.

<wpt>
white-space/line-edge-white-space-collapse-001.html
white-space/pre-float-001.html
white-space/pre-wrap-float-001.html
white-space/trailing-ideographic-space-001.html
white-space/trailing-ideographic-space-002.html
white-space/trailing-other-space-separators-001.html
white-space/trailing-other-space-separators-003.html
white-space/trailing-other-space-separators-004.html
white-space/trailing-space-before-br-001.html
</wpt>
<wpt pathprefix="/css/CSS2/text/">
Expand All @@ -1621,10 +1615,20 @@ Text Processing</h3>
white-space-processing-047.xht
</wpt>
<li>If there remains any sequence of <a>white space</a>,
[=other space separators=],
and/or [=preserved=] [=tabs=]
and/or [=other space separators=],
at the end of a line:
<ul>
<li>If 'white-space' is set to ''white-space/normal'', ''white-space/nowrap'', or ''white-space/pre-line'',
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@kojiishi kojiishi Sep 10, 2019

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I think the condition is 1) when trailing collapsible spaces are removed, or 2) when trailing collapsible spaces hang. I understand we need some more discussion when to hang for pre-wrap but is this intention agreeable?

the UA must [=hang=] this sequence (unconditionally).

<wpt>
white-space/trailing-ideographic-space-001.html
white-space/trailing-ideographic-space-002.html
white-space/trailing-other-space-separators-001.html
white-space/trailing-other-space-separators-003.html
white-space/trailing-other-space-separators-004.html
</wpt>

<li>If 'white-space' is set to ''pre-wrap'',
the UA must [=conditionally hang=] this sequence.
It may also visually collapse the character advance widths
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