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+# mruby-range-ext
+
+This gem extends the functionality of Ruby's `Range` class in mruby. It provides several new methods to make working with ranges more convenient and powerful.
+
+## Methods
+
+### `first` / `first(n)`
+
+Returns the first object in the range, or an array of the first `n` elements.
+
+**Example:**
+
+```ruby
+(10..20).first     #=> 10
+(10..20).first(3)  #=> [10, 11, 12]
+```
+
+### `last` / `last(n)`
+
+Returns the last object in the range, or an array of the last `n` elements. Note that with no arguments `last` will return the object that defines the end of the range even if `exclude_end?` is true.
+
+**Example:**
+
+```ruby
+(10..20).last      #=> 20
+(10...20).last     #=> 20
+(10..20).last(3)   #=> [18, 19, 20]
+(10...20).last(3)  #=> [17, 18, 19]
+```
+
+### `max`
+
+Returns the maximum value in the range. Returns `nil` if the range is empty or excludes its end and the end is not an Integer. For non-numeric ranges or when a block is given, it delegates to `Enumerable#max`.
+
+**Example:**
+
+```ruby
+(10..20).max      #=> 20
+(10...20).max     #=> 19
+('a'..'z').max    #=> "z"
+```
+
+### `min`
+
+Returns the minimum value in the range. For non-numeric ranges or when a block is given, it delegates to `Enumerable#min`.
+
+**Example:**
+
+```ruby
+(10..20).min      #=> 10
+('a'..'z').min    #=> "a"
+```
+
+### `overlap?(other_range)`
+
+Returns `true` if `self` and `other_range` have at least one element in common.
+
+**Example:**
+
+```ruby
+(1..5).overlap?(4..6) #=> true
+(1..5).overlap?(7..9) #=> false
+```
+
+### `cover?(obj_or_range)`
+
+Returns `true` if the given object or all elements of the given range are within `self`.
+
+**Example:**
+
+```ruby
+("a".."z").cover?("c")    #=> true
+("a".."z").cover?("5")    #=> false
+("a".."z").cover?("cc")   #=> true # Note: This behavior might be surprising for strings.
+(1..5).cover?(2..4)      #=> true
+(1..5).cover?(2..7)      #=> false
+```
+
+### `size`
+
+Returns the number of elements in the range. Both the begin and the end of the Range must be Numeric, otherwise `nil` is returned. For endless ranges with an Integer beginning, it returns `Infinity`.
+
+**Example:**
+
+```ruby
+(10..20).size    #=> 11
+('a'..'z').size  #=> nil
+(1..).size       #=> Infinity
+```
+
+## License
+
+This gem is released under the [MIT License](LICENSE).
+
+```
+
+```