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@@ -1185,6 +1185,12 @@ |
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<li><p>If <var title="">position</var> is past the end of <var
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title="">input</var>, return an error.</p></li>
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+ <li><p>If the next character is a U+002B PLUS SIGN character (+),
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+ advance <var title="">position</var> to the next character.</li>
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+
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+ <li><p>If <var title="">position</var> is past the end of <var
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+ title="">input</var>, return an error.</p></li>
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+
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<li><p>If the next character is not one of U+0030 DIGIT ZERO (0)
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.. U+0039 DIGIT NINE (9), then return an error.</p></li>
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@@ -61552,17 +61558,159 @@ thead, tbody, tfoot, tr { border-color: inherit; }</pre> |
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<hr>
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- <p class="XXX">...font...</p>
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- <!-- face=>font-family -->
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- <!-- pointsize=>font-size as pt if present;
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- otherwise size=>font-size as follows:
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- int <0: as x-small
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- int >7: as xx-large
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- 1,2,3,4,5,6: as x-small,small,medium,large,x-large,xx-large; quirks offsets by one?
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- -6 .. -0 +0 .. +6: add to <basefont size> and treat as above?
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- what values should x-small..xx-large have?
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- -->
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- <!-- color -->
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+ <p>When a <code>font</code> element has a <code
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+ title="attr-font-color">color</code> attribute, its value is
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+ expected to be parsed using the <span>rules for parsing a legacy
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+ color value</span>, and the user agent is expected to treat the
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+ attribute as a <span title="presentational hints">presentational
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+ hint</span> setting the element's 'color' property to the resulting
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+ color.</p>
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+
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+ <p>When a <code>font</code> element has a <code
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+ title="attr-font-face">face</code> attribute, the user agent is
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+ expected to treat the attribute as a <span title="presentational
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+ hints">presentational hint</span> setting the element's
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+ 'font-family' property to the attribute's value.</p>
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+
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+ <p>When a <code>font</code> element has a <code
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+ title="attr-font-pointsize">pointsize</code> attribute, the user
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+ agent is expected to parse that attribute's value using the
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+ <span>rules for parsing non-negative integers</span>, and if this
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+ doesn't generate an error, then the user agent is expected to use
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+ the parsed value as a <em>point</em> length for a <span
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+ title="presentational hints">presentational hint</span> for the
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+ 'font-size' property on the element.</p>
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+
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+ <p>When a <code>font</code> element has a <code
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+ title="attr-font-size">size</code> attribute, the user agent is
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+ expected to use the following steps to treat the attribute as a
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+ <span title="presentational hints">presentational hint</span>
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+ setting the element's 'font-size' property:</p>
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+
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+ <ol>
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+
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+ <li><p>Let <var title="">input</var> be the attribute's
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+ value.</p></li>
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+
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+ <li><p>Let <var title="">position</var> be a pointer into <var
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+ title="">input</var>, initially pointing at the start of the
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+ string.</p></li>
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+
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+ <li><p><span>Skip whitespace</span>.</p></li>
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+
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+ <li><p>If <var title="">position</var> is past the end of <var
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+ title="">input</var>, there is no <span title="presentational
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+ hints">presentational hint</span>. Abort these steps.</p></li>
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+
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+ <li><p>If the character at <var title="">position</var> is a U+002B
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+ PLUS SIGN character (+), then let <var title="">mode</var> be
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+ <i>relative-plus</i>, and advance <var title="">position</var> to
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+ the next character. Otherwise, if the character at <var
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+ title="">position</var> is a U+002D HYPHEN-MINUS character (-),
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+ then let <var title="">mode</var> be <i>relative-minus</i>, and
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+ advance <var title="">position</var> to the next
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+ character. Otherwise, let <var title="">mode</var> be
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+ <i>absolute</i>.</p></li>
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+
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+ <li><p><span>Collect a sequence of characters</span> in the range
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+ U+0030 DIGIT ZERO (0) to U+0039 DIGIT NINE (9), and let the
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+ resulting sequence be <var title="">digits</var>.</p></li>
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+
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+ <li><p>If <var title="">digits</var> is the empty string, there is
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+ no <span title="presentational hints">presentational
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+ hint</span>. Abort these steps.</p></li>
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+
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+ <li><p>Interpret <var title="">digits</var> as a base-ten
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+ integer. Let <var title="">size</var> be the resulting
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+ number.</p></li>
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+
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+ <li>
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+
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+ <p>If <var title="">mode</var> is not <i>absolute</i>, run these
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+ substeps:</p>
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+
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+ <ol>
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+
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+ <li><p>Let <var title="">base</var> be 3.</p></li>
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+
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+ <li><p>Let <var title="">base element</var> be the the last
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+ <code>basefont</code> element in <span>tree order</span> that is
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+ before the <code>font</code> element, if there is one.</p></li>
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+
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+ <li><p>If there is a <var title="">base element</var>, and it has
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+ a <code title="attr-basefont-size">size</code> attribute, then
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+ apply the <span>rules for parsing non-negative integers</span> to
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+ that attribute's value.</p></li>
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+
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+ <li><p>If <var title="">base</var> is greater than 7, let it be
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+ 7.</p></li>
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+
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+ <li><p>If <var title="">base</var> is less than 1, let it be
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+ 1.</p></li>
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+
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+ <li><p>If <var title="">mode</var> is <i>relative-plus</i>, then
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+ increment <var title="">value</var> by <var
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+ title="">base</var>. Otherwise, decrement <var
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+ title="">value</var> by <var title="">base</var>.</p></li>
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+
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+ </ol>
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+
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+ </li>
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+
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+ <li><p>If <var title="">value</var> is greater than 7, let it be
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+ 7.</p></li>
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+
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+ <li><p>If <var title="">value</var> is less than 1, let it be
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+ 1.</p></li>
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+
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+ <li>
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+
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+ <p>Set 'font-size' to the keyword corresponding to the value of
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+ <var title="">value</var> according to the following table:</p>
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+
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+ <table>
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+ <thead>
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+ <tr>
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+ <th><var title="">value</var>
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+ <th>'font-size' keyword
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+ <th>Notes
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+ <tbody>
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+ <tr>
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+ <td>1
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+ <td>xx-small
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+ <td>
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+ <tr>
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+ <td>2
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+ <td>small
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+ <td>
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+ <tr>
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+ <td>3
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+ <td>medium
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+ <td>
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+ <tr>
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+ <td>4
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+ <td>large
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+ <td>
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+ <tr>
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+ <td>5
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+ <td>x-large
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+ <td>
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+ <tr>
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+ <td>6
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+ <td>xx-large
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+ <td>
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+ <tr>
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+ <td>7
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+ <td>xxx-large
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+ <td><i>see below</i>
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+ </table>
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+
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+ <p>The 'xxx-large' value is a non-CSS value used here to indicate
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+ a font size one "step" larger than 'xx-large'.</p>
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+
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+ </li>
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+
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+ </ol>
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<h4>Punctuation and decorations</h4>
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