Refine `String#split` document
@@ -2108,23 +2108,18 @@ mrb_str_rindex(mrb_state *mrb, mrb_value str)
/*
* call-seq:
- * str.split(pattern="\n", [limit]) => anArray
+ * str.split(separator=nil, [limit]) => anArray
*
* Divides <i>str</i> into substrings based on a delimiter, returning an array
* of these substrings.
*
- * If <i>pattern</i> is a <code>String</code>, then its contents are used as
- * the delimiter when splitting <i>str</i>. If <i>pattern</i> is a single
+ * If <i>separator</i> is a <code>String</code>, then its contents are used as
+ * the delimiter when splitting <i>str</i>. If <i>separator</i> is a single
* space, <i>str</i> is split on whitespace, with leading whitespace and runs
* of contiguous whitespace characters ignored.
*
- * If <i>pattern</i> is a <code>Regexp</code>, <i>str</i> is divided where the
- * pattern matches. Whenever the pattern matches a zero-length string,
- * <i>str</i> is split into individual characters.
- *
- * If <i>pattern</i> is omitted, the value of <code>$;</code> is used. If
- * <code>$;</code> is <code>nil</code> (which is the default), <i>str</i> is
- * split on whitespace as if ' ' were specified.
+ * If <i>separator</i> is omitted or <code>nil</code> (which is the default),
+ * <i>str</i> is 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
@@ -2135,9 +2130,6 @@ mrb_str_rindex(mrb_state *mrb, mrb_value str)
*
* " now's the time".split #=> ["now's", "the", "time"]
* " now's the time".split(' ') #=> ["now's", "the", "time"]
- * " now's the time".split(/ /) #=> ["", "now's", "", "the", "time"]
- * "hello".split(//) #=> ["h", "e", "l", "l", "o"]
- * "hello".split(//, 3) #=> ["h", "e", "llo"]
*
* "mellow yellow".split("ello") #=> ["m", "w y", "w"]
* "1,2,,3,4,,".split(',') #=> ["1", "2", "", "3", "4"]
@@ -2150,7 +2142,7 @@ mrb_str_split_m(mrb_state *mrb, mrb_value str)
{
mrb_int argc;
mrb_value spat = mrb_nil_value();
- enum {awk, string, regexp} split_type = string;
+ enum {awk, string} split_type = string;
mrb_int i = 0;
mrb_int beg;
mrb_int end;
