text-rendering-tests/testcases/MORX-23.html at main · unicode-org/text-rendering-tests · GitHub

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<?xml version="1.0" encoding="UTF-8"?>
<html xmlns:ft="https://github.com/OpenType/fonttest"
      xmlns:xlink="http://www.w3.org/1999/xlink">
<body>
<h3 id="MORX-23">MORX-23: Contextual Glyph Substitution with CurrentIndex and DontAdvance</h3>

<div class="desc">
  The <a href="../fonts/TestMORXTwentythree.ttf">font</a> for this test case has
  an <a href="https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6morx.html"
  >AAT Extended Glyph Metamorphosis Table</a>
  with a single <em>Contextual Glyph Substitution Subtable</em>.
  Its finite-state machine contains one state. For glyphs
  glyphs <em>A</em>, <em>B</em>, <em>C</em>, and <em>D</em>,
  the machine executes the per-glyph substitution #0
  on <em>CurrentIndex</em> on a transition that is also marked
  with the <em>DontAdvance</em> flag. The glyph substitution
  replaces <em>A</em> by <em>B</em>, <em>B</em> by <em>C</em>,
  <em>C</em> by <em>D</em>, and <em>D</em> by <em>E</em>.
</div>

<div class="desc">
  The input string for this test is <em>ABCDE</em>. If your rendering
  system correctly implements <em>Apple Advanced Typography,</em> the
  finite-state machine should loop for each glyph in state 0 until it
  gets rewritten to <em>E</em>.  The final result should be <em>EEEEE</em>.
</div>

<table>
  <tr>
  <tr>
    <th></th>
    <th style="text-align:center">ABCDE</th>
  </tr>
    <th>Expected</th>
    <td class="expected" ft:id="MORX-23/1" ft:render="ABCDE"
        ft:font="TestMORXTwentythree.ttf"><svg version="1.1" viewBox="0 -200 2780 1200"><symbol id="MORX-23/1.E" overflow="visible"><path d="M97,0 L97,714 L496,714 L496,635 L187,635 L187,412 L478,412 L478,334 L187,334 L187,79 L496,79 L496,0 Z" /></symbol><use x="0" y="0" xlink:href="#MORX-23/1.E" /><use x="556" y="0" xlink:href="#MORX-23/1.E" /><use x="1112" y="0" xlink:href="#MORX-23/1.E" /><use x="1668" y="0" xlink:href="#MORX-23/1.E" /><use x="2224" y="0" xlink:href="#MORX-23/1.E" /></svg></td>
  </tr>
  <tr>
    <th>Observed</th>
    <td class="observed" ft:id="MORX-23/1"/>
  </tr>
  <tr>
    <th class="conformance-header">Conformance</th>
    <td class="conformance" ft:id="MORX-23/1"/>
  </tr>
</table>
</body>
</html>