8000 [css-text-decor] dbaron says positioning should be per box, not per d… · w3c/csswg-drafts@1c85723 · GitHub
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[css-text-decor] dbaron says positioning should be per box, not per decorating fragment. <http://lists.w3.org/Archives/Public/www-style/2013Mar/0532.html> Also, skip things that are being skipped.
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‎css-text-decor/Overview.html‎

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@@ -1048,10 +1048,15 @@ <h3 id=line-position><span class=secno>2.7. </span> Determining the
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vertical alignments, the best position for a line decoration is not
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necessarily the ideal position dictated by the decorating element. In
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determining the position of text decoration lines, user agents must
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consider, per line box, the “ideal” positions of such line decorations
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per fragment of the <a href="#decorating-box"><i>decorating
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box</i></a>—or its in-flow inline descendant—that draws the text
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decoration.
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consider, for each <a href="#decorating-box"><i>decorating box</i></a>,
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the “ideal” positions of such line decorations per fragment of the <a
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href="#decorating-box"><i>decorating box</i></a>—or its in-flow inline
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descendant—that draws the text decoration. However, descendant fragments
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of the <i>decorating element</i> that are skipped due to ‘<a
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href="#text-decoration-skip"><code
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class=property>text-decoration-skip</code></a>’ (including elements with
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‘<code class=css>text-decoration-skip: ink</code>’) are excluded from
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consideration.
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<p> The line decoration positions are then calculated as follows (treating
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<a href="#underline-left"><i>over</i>-positioned underlines</a> as

‎css-text-decor/Overview.src.html‎

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@@ -694,9 +694,14 @@ <h3 id="line-position">
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vertical alignments, the best position for a line decoration is not
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necessarily the ideal position dictated by the decorating element.
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In determining the position of text decoration lines,
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user agents must consider, per line box, the “ideal” positions of such line decorations
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per fragment of the <i>decorating box</i>&mdash;or its in-flow inline descendant&mdash;that
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user agents must consider, for each <i>decorating box</i>,
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the “ideal” positions of such line decorations per fragment
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of the <i>decorating box</i>&mdash;or its in-flow inline descendant&mdash;that
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draws the text decoration.
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However, descendant fragments of the <i>decorating element</i>
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that are skipped due to 'text-decoration-skip'
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(including elements with ''text-decoration-skip: ink'')
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are excluded from consideration.
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<p>
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The line decoration positions are then calculated

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