diff options
-rw-r--r-- | string.c | 20 |
1 files changed, 10 insertions, 10 deletions
@@ -3196,12 +3196,11 @@ rb_str_aref(VALUE str, VALUE indx) * Element Reference---If passed a single <code>Fixnum</code>, returns a * substring of one character at that position. If passed two <code>Fixnum</code> * objects, returns a substring starting at the offset given by the first, and - * a length given by the second. If given a range, a substring containing - * characters at offsets given by the range is returned. In all three cases, if - * an offset is negative, it is counted from the end of <i>str</i>. Returns - * <code>nil</code> if the initial offset falls outside the string, the length - * is negative, or the beginning of the range is greater than the end of the - * string. + * with a length given by the second. If passed a range, its beginning and end + * are interpreted as offsets delimiting the substring to be returned. In all + * three cases, if an offset is negative, it is counted from the end of <i>str</i>. + * Returns <code>nil</code> if the initial offset falls outside the string or + * the length is negative. * * If a <code>Regexp</code> is supplied, the matching portion of <i>str</i> is * returned. If a numeric or name parameter follows the regular expression, that @@ -3212,12 +3211,13 @@ rb_str_aref(VALUE str, VALUE indx) * * a = "hello there" * a[1] #=> "e" - * a[1,3] #=> "ell" - * a[1..3] #=> "ell" - * a[-3,2] #=> "er" + * a[2, 3] #=> "llo" + * a[2..3] #=> "ll" + * a[-3, 2] #=> "er" + * a[7..-2] #=> "her" * a[-4..-2] #=> "her" - * a[12..-1] #=> nil * a[-2..-4] #=> "" + * a[12..-1] #=> nil * a[/[aeiou](.)\1/] #=> "ell" * a[/[aeiou](.)\1/, 0] #=> "ell" * a[/[aeiou](.)\1/, 1] #=> "l" |