stomar	2017-06-03 06:29:27 +0900 (Sat, 03 Jun 2017)

  New Revision: 59002

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=59002

  Log:
    string.c: docs for String#split
    
    * string.c: [DOC] clarify docs for String#split when called
      with limit and capture groups.
      Reported by Cichol Tsai.  [ruby-core:81505] [Bug #13621]

  Modified files:
    trunk/string.c
Index: string.c
===================================================================
--- string.c	(revision 59001)
+++ string.c	(revision 59002)
@@ -7285,7 +7285,7 @@ static const char isspacetable[256] = { https://github.com/ruby/ruby/blob/trunk/string.c#L7285
 
 /*
  *  call-seq:
- *     str.split(pattern=nil, [limit])   -> anArray
+ *     str.split(pattern=nil, [limit])   -> an_array
  *
  *  Divides <i>str</i> into substrings based on a delimiter, returning an array
  *  of these substrings.
@@ -7305,9 +7305,11 @@ static const char isspacetable[256] = { https://github.com/ruby/ruby/blob/trunk/string.c#L7305
  *  split on whitespace as if ' ' were specified.
  *
  *  If the <i>limit</i> parameter is omitted, trailing null fields are
- *  suppressed. If <i>limit</i> is a positive number, at most that number of
- *  fields will be returned (if <i>limit</i> is <code>1</code>, the entire
- *  string is returned as the only entry in an array). If negative, there is no
+ *  suppressed. If <i>limit</i> is a positive number, at most that number
+ *  of split substrings will be returned (captured groups will be returned
+ *  as well, but are not counted towards the limit).
+ *  If <i>limit</i> is <code>1</code>, the entire
+ *  string is returned as the only entry in an array. If negative, there is no
  *  limit to the number of fields returned, and trailing null fields are not
  *  suppressed.
  *
@@ -7327,6 +7329,8 @@ static const char isspacetable[256] = { https://github.com/ruby/ruby/blob/trunk/string.c#L7329
  *     "1,2,,3,4,,".split(',', 4)      #=> ["1", "2", "", "3,4,,"]
  *     "1,2,,3,4,,".split(',', -4)     #=> ["1", "2", "", "3", "4", "", ""]
  *
+ *     "1:2:3".split(/(:)()()/, 2)     #=> ["1", ":", "", "", "2:3"]
+ *
  *     "".split(',', -1)               #=> []
  */
 

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