[css-text-3] Reword “hanging” definitions to be a little more generic, since we're now also hanging spaces. w3c#3784

Author: fantasai

css-text-3/Overview.bs

@@ -3831,7 +3831,7 @@ Cursive Scripts</h4>
     <p class="note">Note: If there is not sufficient padding on the
       block container, 'hanging-punctuation' can trigger overflow.</p>
 
-    <p>When a punctuation mark <dfn lt="hang">hangs</dfn>, it is not considered
+    <p>When a glyph <dfn lt="hang">hangs</dfn>, it is not considered
       when measuring the line's contents for fit, alignment, or justification.
       Depending on the line's alignment/justification, this can
       result in the mark being placed outside the line box.
@@ -3885,15 +3885,15 @@ Cursive Scripts</h4>
       does not <a>hang</a> at the end edge of a line.
       At most one punctuation character may <a>hang</a> at each edge of the line.
 
-    <p>A <a lt=hang>hanging</a> punctuation mark
+    <p>A <a lt=hang>hanging</a> mark
       is still enclosed inside its parent inline box,
       is still counted as part of the <a>scrollable overflow region</a> [[!CSS-OVERFLOW-3]],
       and still participates in text justification:
       its character advance 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.
-      Effectively, the <a>hanging</a> punctuation mark’s character advance
+      Effectively, the <a>hanging</a> glyph character advance
       is re-interpreted as an additional negative margin
       on the affected edge of its parent <a>inline box</a>;
       the line is otherwise laid out as usual.