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<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Text 3 test: trailing pre-wrap spaces and bidi</title>
<link rel="author" title="Florian Rivoal" href="https://florian.rivoal.net/">
<link rel="help" href="https://drafts.csswg.org/css-text-3/#white-space-phase-2">
<link rel="help" href="https://www.w3.org/TR/css-writing-modes/#text-direction">
<link rel="help" href="http://www.unicode.org/reports/tr9/#L1">
<link rel="match" href="reference/eol-spaces-bidi-002-ref.html">
<meta name="assert" content="Use UAX9L1 to determine which space is at the end of the line, taking into account that such spaces, when pre-wrap, must hang.">
<style>
div {
font-family: monospace;
border: solid blue;
font-size: 1.5em;
white-space: pre-wrap;
}
.ref {
border-color: orange;
white-space: pre;
}
.w6 { width: 6ch; }
.w7 { width: 7ch; }
.w8 { width: 8ch; }
.w9 { width: 9ch; }
.blue { background: #aaaaff; }
.red { background: #ffaaaa; }
.green { background: #aaffaa; }
.pink { background: #ffaaff; }
.yellow { background: #ffffaa; }
</style>
<p>Test passes if each pair of blue / orange boxes are identical (except for the color of their border).
<!-- not coloring the space between ا and ب in this particular case,
because per UAX9 L1 and css-text-3 4.1.2 point 4 bullet 2:
this space MUST be at the end of the line and hang,
but also the UA MAY collapse it's advance width.
Not giving it a color lets the test pass either way.
-->
<div class="w6"><span class=pink> </span>A<span class=blue> </span>B<span class=red> </span>ا<span> </span>ب<span class=yellow> </span></div>
<div class="w6 ref"><span class=pink> </span>A<span class=blue> </span>B<span class=red> </span>ا<br>ب<span class=yellow> </span></div>
<hr>
<div class="w7"><span class=pink> </span>A<span class=blue> </span>B<span class=red> </span>ا<span class=green> </span>ب<span class=yellow> </span></div>
<div class="w7 ref"><span class=pink> </span>A<span class=blue> </span>B<span class=red> </span>ا<span class=green> </span><br>ب<span class=yellow> </span></div>
<hr>
<!-- not coloring the last space in this particular case,
because per 4.1.2 point 4 bullet 2:
this space MUST hang,
but also the UA MAY collapse it's advance width.
So we know for sure it won't cause a line break,
but it may or may not be visible at the end of the line.
Not giving it a color lets the test pass either way.
-->
<div class="w8"><span class=pink> </span>A<span class=blue> </span>B<span class=red> </span>ا<span class=green> </span>ب<span> </span></div>
<div class="w8 ref"><span class=pink> </span>A<span class=blue> </span>B<span class=red> </span>ا<span class=green> </span>ب</div>
<hr>
<div class="w9"><span class=pink> </span>A<span class=blue> </span>B<span class=red> </span>ا<span class=green> </span>ب<span class=yellow> </span></div>
<div class="w9 ref"><span class=pink> </span>A<span class=blue> </span>B<span class=red> </span>ا<span class=green> </span>ب<span class=yellow> </span></div>
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