Get rid of a lot of special casing in the event loops. Merge default.

--HG--
branch : mode-refactoring

common/locale/en-US/pattern.xml

@@ -55,7 +55,7 @@
             appear is the one that takes effect.
         </p>
 
-        <dl>
+        <dl dt="width: 6em;">
             <dt>\c</dt> <dd>Perform case insensitive search (default if <o>ignorecase</o> is set).</dd>
             <dt>\C</dt> <dd>Perform case sensitive search</dd>
             <dt>\l</dt> <dd>Search only in links, as defined by <o>hinttags</o>. (default if <o>linksearch</o> is set).</dd>
@@ -66,7 +66,7 @@
             Additionally, if the /Find Bar/ extension is installed, the
             following flags may be used,
         </p>
-        <dl>
+        <dl dt="width: 6em;">
             <dt>\r</dt> <dd>Process the entire pattern as a regular expression.</dd>
             <dt>\R</dt> <dd>Process the entire pattern as an ordinary string.</dd>
         </dl>