diff options
Diffstat (limited to 'string.c')
| -rw-r--r-- | string.c | 53 |
1 files changed, 2 insertions, 51 deletions
@@ -4770,59 +4770,10 @@ rb_str_rindex(VALUE str, VALUE sub, long pos) /* * call-seq: - * rindex(substring, offset = self.length) -> integer or nil - * rindex(regexp, offset = self.length) -> integer or nil + * rindex(pattern, offset = self.length) -> integer or nil * - * Returns the Integer index of the _last_ occurrence of the given +substring+, - * or +nil+ if none found: + * :include:doc/string/rindex.rdoc * - * 'foo'.rindex('f') # => 0 - * 'foo'.rindex('o') # => 2 - * 'foo'.rindex('oo') # => 1 - * 'foo'.rindex('ooo') # => nil - * - * Returns the Integer index of the _last_ match for the given Regexp +regexp+, - * or +nil+ if none found: - * - * 'foo'.rindex(/f/) # => 0 - * 'foo'.rindex(/o/) # => 2 - * 'foo'.rindex(/oo/) # => 1 - * 'foo'.rindex(/ooo/) # => nil - * - * The _last_ match means starting at the possible last position, not - * the last of longest matches. - * - * 'foo'.rindex(/o+/) # => 2 - * $~ #=> #<MatchData "o"> - * - * To get the last longest match, needs to combine with negative - * lookbehind. - * - * 'foo'.rindex(/(?<!o)o+/) # => 1 - * $~ #=> #<MatchData "oo"> - * - * Or String#index with negative lookforward. - * - * 'foo'.index(/o+(?!.*o)/) # => 1 - * $~ #=> #<MatchData "oo"> - * - * Integer argument +offset+, if given and non-negative, specifies the maximum starting position in the - * string to _end_ the search: - * - * 'foo'.rindex('o', 0) # => nil - * 'foo'.rindex('o', 1) # => 1 - * 'foo'.rindex('o', 2) # => 2 - * 'foo'.rindex('o', 3) # => 2 - * - * If +offset+ is a negative Integer, the maximum starting position in the - * string to _end_ the search is the sum of the string's length and +offset+: - * - * 'foo'.rindex('o', -1) # => 2 - * 'foo'.rindex('o', -2) # => 1 - * 'foo'.rindex('o', -3) # => nil - * 'foo'.rindex('o', -4) # => nil - * - * Related: String#index. */ static VALUE |