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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - tryHyphenating's maxPrefixWidth computation is odd."
href="https://bugs.webkit.org/show_bug.cgi?id=169613">169613</a>
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<th>Summary</th>
<td>tryHyphenating's maxPrefixWidth computation is odd.
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<th>Classification</th>
<td>Unclassified
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<th>Product</th>
<td>WebKit
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<th>Version</th>
<td>WebKit Nightly Build
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<th>Hardware</th>
<td>Unspecified
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<th>OS</th>
<td>Unspecified
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>Normal
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<th>Priority</th>
<td>P2
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<th>Component</th>
<td>Layout and Rendering
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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<th>Reporter</th>
<td>zalan@apple.com
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<th>CC</th>
<td>bfulgham@webkit.org, simon.fraser@apple.com, zalan@apple.com
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<p>
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<pre>I wonder why
1. the xPos in-param value is not set to the position of the hyphenated string but instead it is set to one character before.
Most of the time it's a space (whitespace) but it can also be a sequence of non-collapsed whitespace like tabs.
case 1: non-collapsed whitespace -> "tabtabstring", xPos -> "tab|tabstring"
case 2: collapsed whitespace "spacestring", xPos -> "|spacestring"
3. then we do "availableWidth - xPos - hyphenWidth" where the "availableWidth - xPos" is supposed to indicate the width we have for hyphenating, but since this value is inflated by the trailing whitespace, we try to compensate for that by subtracting hyphenWidth. (that's just a guess, but I can't figure out a better explanation, not even through blame)
I just don't see how these values add up and why can't we pass in the actual width left for the string and see if the hyphen fits.</pre>
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