Fix tab-size to handle <length>. <http://lists.w3.org/Archives/Public/www-style/2012May/0093.html>.

Author: fantasai

css3-text/Overview.html

@@ -838,9 +838,9 @@ <h3 id=tab-size><span class=secno>3.2. </span> Tab Character Size: the
      <td>specified value
   </table>
 
-  <p>This property determines the measure of the tab character (U+0009) when
-   rendered. Integers represent the measure in space characters (U+0020).
-   Negative integers are not allowed.
+  <p>This property determines the <a href="#tab-size1"><i>tab size</i></a>
+   used to render preserved tab characters (U+0009). Integers represent the
+   measure in space characters (U+0020). Negative values are not allowed.
 
   <h3 id=white-space-rules><span class=secno>3.3. </span> The White Space
    Processing Rules</h3>
@@ -897,11 +897,12 @@ <h3 id=white-space-rules><span class=secno>3.3. </span> The White Space
     removed.
 
    <li>Each tab is rendered as a horizontal shift that lines up the start
-    edge of the next glyph with the next tab stop. Tab stops occur at points
-    that are multiples of the width of a space (U+0020) rendered in the
-    block's font from the block's starting content edge. How many spaces is
-    given by the &lsquo;<a href="#tab-size0"><code
-    class=property>tab-size</code></a>&rsquo; property.
+    edge of the next glyph with the next tab stop. <dfn id=tab-stops>Tab
+    stops</dfn> occur at points that are multiples of the <a
+    href="#tab-size1"><i>tab size</i></a> from the block's starting content
+    edge. The <dfn id=tab-size1>tab size</dfn> is given by the &lsquo;<a
+    href="#tab-size0"><code class=property>tab-size</code></a>&rsquo;
+    property.
 
    <li>A sequence of collapsible spaces at the end of a line is removed.
 
@@ -1433,12 +1434,13 @@ <h3 id=word-break><span class=secno>4.2. </span> Word Breaking Rules: the
    <dt><dfn id=keep-all title="word-break:keep-all">&lsquo;<code
     class=css>keep-all</code>&rsquo;</dfn>
 
-   <dd>Break opportunties between ID/ID, AL/ID, and ID/AL as defined in <a
-    href="#UAX14" rel=biblioentry>[UAX14]<!--{{UAX14}}--></a> are prohibited.
-    Otherwise this option is equivalent to &lsquo;<code
+   <dd> Implicit breaks between letters are suppressed, i.e. break
+    opportunties between pairs of ID, AL, AI, and HL characters as defined in
+    <a href="#UAX14" rel=biblioentry>[UAX14]<!--{{UAX14}}--></a> are are
+    prohibited. Otherwise this option is equivalent to &lsquo;<code
     class=css>normal</code>&rsquo;. This option produces a style where
     sequences of ideographic characters do not break, and word separator
-    characters are present to create line-breaking opportunities. Such sytle
+    characters are present to create line-breaking opportunities. This style
     is sometimes seen in Korean magazines, and is also useful for
     mixed-script text where CJK snippets are mixed into another language that
     uses spaces for seapration.
@@ -3186,11 +3188,12 @@ <h3 id=hanging-punctuation><span class=secno>9.2. </span> Hanging
    of a line. At most one punctuation character may <a
    href="#hangs"><i>hang</i></a> at each edge of the line.
 
-  <p>A hanging punctuation mark is still enclosed inside its inline box and
-   participates in text justification: its character advance width is just
-   not measured when determining how much content fits on the line, how much
-   the line's contents need to be expanded or compressed for justification,
-   or how to position the content within the line box for text alignment.
+  <p>A <i>hanging</i> punctuation mark is still enclosed inside its inline
+   box and participates in text justification: its character advance width is
+   just not measured when determining how much content fits on the line, how
+   much the line's contents need to be expanded or compressed for
+   justification, or how to position the content within the line box for text
+   alignment.
 
   <p><dfn id=stops-and-commas>Stops and commas</dfn> allowed to <a
    href="#hangs"><i>hang</i></a> include:

css3-text/Overview.src.html

@@ -505,9 +505,9 @@ <h3 id="tab-size">
       </tbody>
     </table>
 
-    <p>This property determines the measure of the tab character (U+0009)
-      when rendered. Integers represent the measure in space characters (U+0020).
-      Negative integers are not allowed.
+    <p>This property determines the <i>tab size</i> used to render preserved tab characters (U+0009).
+      Integers represent the measure in space characters (U+0020).
+      Negative values are not allowed.
 
   <h3 id="white-space-rules">
     The White Space Processing Rules</h3>
@@ -552,12 +552,11 @@ <h3 id="white-space-rules">
     <ol>
       <li>A sequence of collapsible spaces at the beginning of a line is
         removed.
-      <li>Each tab is rendered as a horizontal shift that lines up
-        the start edge of the next glyph with the next tab stop.
-        Tab stops occur at points that are multiples of the width of a
-        space (U+0020) rendered in the block's font from the block's
-        starting content edge. How many spaces is given by the 'tab-size'
-        property.</li>
+      <li>Each tab is rendered as a horizontal shift
+        that lines up the start edge of the next glyph with the next tab stop.
+        <dfn>Tab stops</dfn> occur at points that are multiples of the <i>tab size</i>
+        from the block's starting content edge.
+        The <dfn>tab size</dfn> is given by the 'tab-size' property.
       <li>A sequence of collapsible spaces at the end of a line is removed.
       <li>If spaces or tabs at the end of a line are non-collapsible but
          have 'text-wrap' set to 'normal' or 'avoid' the UA may visually
@@ -969,12 +968,15 @@ <h3 id="word-break">
         the text is predominantly using CJK characters with few non-CJK excerpts
         and it is desired that the text be better distributed on each line.</dd>
       <dt><dfn title="word-break:keep-all">''keep-all''</dfn></dt>
-      <dd>Break opportunties between ID/ID, AL/ID, and ID/AL as defined in [[UAX14]]
-        are prohibited. Otherwise this option is equivalent to ''normal''.
+      <dd>
+        Implicit breaks between letters are suppressed, i.e.
+        break opportunties between pairs of ID, AL, AI, and HL characters
+        as defined in [[UAX14]] are are prohibited.
+        Otherwise this option is equivalent to ''normal''.
         This option produces a style where sequences of ideographic characters do
         not break, and word separator characters are present to create line-breaking
         opportunities.
-        Such sytle is sometimes seen in Korean magazines, and is also useful for
+        This style is sometimes seen in Korean magazines, and is also useful for
         mixed-script text where CJK snippets are mixed into another language that
         uses spaces for seapration.</dd>
     </dl>