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arabic-subtending-marks.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Testing Arabic subtending marks (U+0600..U+0604)</title>
<meta name="viewport" content="width=device-width,initial-scale=1.0">
<style>
@font-face {
font-family: "NotoNastaliqUrduWeb";
src: url("fonts/NotoNastaliqUrdu-Regular-v3.007.woff2") format("woff2"),
url("fonts/NotoNastaliqUrdu-Regular-v3.007.woff") format("woff");
}
@font-face {
font-family: "AmiriWeb";
src: url("fonts/Amiri-Regular-v1.000.woff2") format("woff2"),
url("fonts/Amiri-Regular-v1.000.woff") format("woff");
}
.noto-nastaliq {
font-family: "NotoNastaliqUrduWeb", serif;
}
.amiri {
font-family: "AmiriWeb", serif;
}
.custom-font {
font-family: serif;
}
:root {
--system-ui: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", "Liberation Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
}
html {
font-size: 80%;
}
@media(min-width: 768px) {
html {
font-size: 90%;
}
}
@media(min-width: 900px) {
html {
font-size: 100%;
}
}
body {
font-family: var(--system-ui);
line-height: 1.5;
width: 95%;
max-width: 960px;
margin: 2em auto;
}
h1 {
font-size: 1.125rem;
margin: 0 0 1.3334em 0;
}
p {
margin: 0 0 1.5em;
}
.options {
font-size: 0.90625rem;
list-style: none;
margin: 0 0 1.714286em 0;
padding: 1em;
border-top: 1px solid #ccc;
border-bottom: 1px solid #ccc;
background-color: #f8f8f8;
}
.options li {
padding: 0.75em 0;
border-bottom: 1px solid #ccc;
}
.options li:last-child {
border-bottom: 0;
}
.options p {
margin-top: 0.125em;
margin-bottom: 0;
font-size: 0.9em;
}
table {
width: 100%;
border-collapse: collapse;
table-layout: fixed;
}
tr {
border-bottom: 1px solid #ccc;
}
thead tr {
border-bottom: 2px solid #ccc;
}
th {
padding: 10px 15px;
}
th:first-child {
padding-left: 0;
}
th:last-child {
padding-right: 0;
}
th span {
display: block;
font-size: 0.8em;
color: #555;
}
td {
font-size: 1.25rem;
line-height: 3;
padding: 20px 15px 10px;
vertical-align: top;
}
td:first-child {
font-family: var(--system-ui);
font-size: 1rem;
line-height: 1.5;
padding-left: 0;
}
td:first-child input {
display: block;
width: 100%;
margin: 0.25em 0;
}
td:first-child small {
line-height: 1.5;
display: block;
}
td:last-child {
padding-right: 0;
}
.examples {
display: flex;
flex-wrap: wrap;
list-style: none;
margin: 0;
padding: 0;
}
.examples li {
background-color: #f6f6f6;
border-radius: 3px;
margin: 0 0 10px 10px;
padding: 0 10px;
}
</style>
</head>
<body>
<h1>Testing Arabic subtending marks (U+0600..U+0604)</h1>
<ul class="options">
<li>
<label>
<input id="input-rlo-pdf" type="checkbox" />
Surround with U+202E RIGHT-TO-LEFT OVERRIDE and U+202C POP DIRECTIONAL FORMATTING
</label>
<p>(Done on this page via corresponding <a href="https://www.w3.org/TR/css-writing-modes-3/#bidi-control-codes-injection-table">CSS</a>.)</p>
</li>
</ul>
<table>
<thead>
<tr>
<th style="text-align: left; width: 20%">Font</th>
<th style="text-align: right; width: 40%">Correct logical order <span>(subtending mark followed by digits)</span></th>
<th style="text-align: right; width: 40%">Incorrect logical order <span>(digits followed by subtending mark)</span></th>
</tr>
</thead>
<tbody>
<tr>
<td>
Noto Nastaliq Urdu
<small>v3.007 <a href="https://github.com/notofonts/nastaliq/releases/tag/NotoNastaliqUrdu-v3.007">(source)</a></small>
</td>
<td>
<ul class="examples noto-nastaliq" dir="rtl" lang="ur">
<li>۱۲۳</li>
<li>۱۲۳۴</li>
<li>۱۲</li>
<li>۱۲۳</li>
<li>۱۲۳۴</li>
</ul>
</td>
<td>
<ul class="examples noto-nastaliq" dir="rtl" lang="ur">
<li>۱۲۳</li>
<li>۱۲۳۴</li>
<li>۱۲</li>
<li>۱۲۳</li>
<li>۱۲۳۴</li>
</ul>
</td>
</tr>
<tr>
<td>
Amiri
<small>v1.000 <a href="https://github.com/aliftype/amiri/releases/tag/1.000">(source)</a></small>
</td>
<td>
<ul class="examples amiri" dir="rtl" lang="ur">
<li>۱۲۳</li>
<li>۱۲۳۴</li>
<li>۱۲</li>
<li>۱۲۳</li>
<li>۱۲۳۴</li>
</ul>
</td>
<td>
<ul class="examples amiri" dir="rtl" lang="ur">
<li>۱۲۳</li>
<li>۱۲۳۴</li>
<li>۱۲</li>
<li>۱۲۳</li>
<li>۱۲۳۴</li>
</ul>
</td>
</tr>
<tr>
<td>
Custom
<input id="input-custom-font" type="text" />
<small>Type the name of the font in the box above. The font needs to be installed in your device.</small>
</td>
<td>
<ul class="examples custom-font" dir="rtl" lang="ur">
<li>۱۲۳</li>
<li>۱۲۳۴</li>
<li>۱۲</li>
<li>۱۲۳</li>
<li>۱۲۳۴</li>
</ul>
</td>
<td>
<ul class="examples custom-font" dir="rtl" lang="ur">
<li>۱۲۳</li>
<li>۱۲۳۴</li>
<li>۱۲</li>
<li>۱۲۳</li>
<li>۱۲۳۴</li>
</ul>
</td>
</tr>
</tbody>
</table>
<script>
function cssBidiOverride(e) {
isChecked = e.target.checked;
if (isChecked) {
document.querySelectorAll('.examples li').forEach(function(e) {
e.style.cssText = "unicode-bidi: bidi-override";
});
} else {
document.querySelectorAll('.examples li').forEach(function(e) {
e.style.removeProperty('unicode-bidi');
});
}
}
const inputRloPdf = document.getElementById("input-rlo-pdf");
inputRloPdf.addEventListener("change", cssBidiOverride);
function applyCustomFont(e) {
fontName = e.target.value;
document.querySelectorAll('.examples.custom-font').forEach(function(e) {
e.style.cssText = `font-family: '${fontName}'`;
});
}
const inputCustomFont = document.getElementById("input-custom-font");
inputCustomFont.addEventListener("input", applyCustomFont);
</script>
</body>
</html>