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-rw-r--r--activesupport/lib/active_support/core_ext/string/access.rb112
1 files changed, 24 insertions, 88 deletions
diff --git a/activesupport/lib/active_support/core_ext/string/access.rb b/activesupport/lib/active_support/core_ext/string/access.rb
index c0d5cdf2d5..9b5266c58c 100644
--- a/activesupport/lib/active_support/core_ext/string/access.rb
+++ b/activesupport/lib/active_support/core_ext/string/access.rb
@@ -1,99 +1,35 @@
require "active_support/multibyte"
class String
- unless '1.9'.respond_to?(:force_encoding)
- # Returns the character at the +position+ treating the string as an array (where 0 is the first character).
- #
- # Examples:
- # "hello".at(0) # => "h"
- # "hello".at(4) # => "o"
- # "hello".at(10) # => ERROR if < 1.9, nil in 1.9
- def at(position)
- mb_chars[position, 1].to_s
- end
-
- # Returns the remaining of the string from the +position+ treating the string as an array (where 0 is the first character).
- #
- # Examples:
- # "hello".from(0) # => "hello"
- # "hello".from(2) # => "llo"
- # "hello".from(10) # => "" if < 1.9, nil in 1.9
- def from(position)
- mb_chars[position..-1].to_s
- end
-
- # Returns the beginning of the string up to the +position+ treating the string as an array (where 0 is the first character).
- #
- # Examples:
- # "hello".to(0) # => "h"
- # "hello".to(2) # => "hel"
- # "hello".to(10) # => "hello"
- def to(position)
- mb_chars[0..position].to_s
- end
-
- # Returns the first character of the string or the first +limit+ characters.
- #
- # Examples:
- # "hello".first # => "h"
- # "hello".first(2) # => "he"
- # "hello".first(10) # => "hello"
- def first(limit = 1)
- if limit == 0
- ''
- elsif limit >= size
- self
- else
- mb_chars[0...limit].to_s
- end
- end
-
- # Returns the last character of the string or the last +limit+ characters.
- #
- # Examples:
- # "hello".last # => "o"
- # "hello".last(2) # => "lo"
- # "hello".last(10) # => "hello"
- def last(limit = 1)
- if limit == 0
- ''
- elsif limit >= size
- self
- else
- mb_chars[(-limit)..-1].to_s
- end
- end
- else
- def at(position)
- self[position]
- end
+ def at(position)
+ self[position]
+ end
- def from(position)
- self[position..-1]
- end
+ def from(position)
+ self[position..-1]
+ end
- def to(position)
- self[0..position]
- end
+ def to(position)
+ self[0..position]
+ end
- def first(limit = 1)
- if limit == 0
- ''
- elsif limit >= size
- self
- else
- to(limit - 1)
- end
+ def first(limit = 1)
+ if limit == 0
+ ''
+ elsif limit >= size
+ self
+ else
+ to(limit - 1)
end
+ end
- def last(limit = 1)
- if limit == 0
- ''
- elsif limit >= size
- self
- else
- from(-limit)
- end
+ def last(limit = 1)
+ if limit == 0
+ ''
+ elsif limit >= size
+ self
+ else
+ from(-limit)
end
end
end