aycabta	2018-10-21 15:42:53 +0900 (Sun, 21 Oct 2018)

  New Revision: 65269

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=65269

  Log:
    Improve doc of Regexp about "ignore case" behavior [Misc #10836]
    
    * doc/regexp.rdoc: RDoc for "ignore case" behavior

  Modified files:
    trunk/doc/regexp.rdoc
Index: doc/regexp.rdoc
===================================================================
--- doc/regexp.rdoc	(revision 65268)
+++ doc/regexp.rdoc	(revision 65269)
@@ -541,10 +541,15 @@ options which control how the pattern ca https://github.com/ruby/ruby/blob/trunk/doc/regexp.rdoc#L541
 subexpression level with the
 <tt>(?</tt><i>on</i><tt>-</tt><i>off</i><tt>)</tt> construct, which
 enables options <i>on</i>, and disables options <i>off</i> for the
-expression enclosed by the parentheses.
+expression enclosed by the parentheses:
 
-    /a(?i:b)c/.match('aBc') #=> #<MatchData "aBc">
-    /a(?i:b)c/.match('abc') #=> #<MatchData "abc">
+    /a(?i:b)c/.match('aBc')   #=> #<MatchData "aBc">
+    /a(?-i:b)c/i.match('ABC') #=> nil
+
+Additionally, these options can also be toggled for the remainder of the
+pattern:
+
+    /a(?i)bc/.match('abC') #=> #<MatchData "abC">
 
 Options may also be used with <tt>Regexp.new</tt>:
 

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