Class: LX::Array

Inherits:
Object
  • Object
show all
Defined in:
lib/lx.rb

Overview

A helper class to add methods to the Array class. When you use the Array::lx you’re creating an instance of LX::Array.

Instance Method Summary collapse

Constructor Details

#initialize(p_arr) ⇒ Array

initialize a LX::Array object. The only param is the array itself.



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# File 'lib/lx.rb', line 196

def initialize(p_arr)
	@arr = p_arr
end

Instance Method Details

#deep_dup ⇒ Object

deep_dup



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# File 'lib/lx.rb', line 245

def deep_dup
	return LX.deep_dup(@arr)
end

#draw ⇒ Object

draw



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# File 'lib/lx.rb', line 238

def draw
	rv = @arr[0]
	@arr.rotate!
	return rv
end

#move(old_idx, new_idx) ⇒ Object

Moves an array element from the old index to the new index.

arr = ['a', 'b', 'c']
arr.lx.move 1, 2 # => ["a", "c", "b"]



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# File 'lib/lx.rb', line 203

def move(old_idx, new_idx)
	@arr.insert new_idx, @arr.slice!(1)
end

#split(exp) ⇒ Object

Splits an array into an array of arrays. The param is the delimiter.

arr = ['Fred', 'George', ':', 'Mary', 'Frank']
arr.lx.split ':' # => [["Fred", "George"], ["Mary", "Frank"]]



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# File 'lib/lx.rb', line 210

def split(exp)
	# $tm.hrm
	rv = []
	current = nil
	
	# loop through array looking for delimiter
	@arr.each do |el|
		if el == exp
			if current
				rv.push current
				current = nil
			end
		else
			current ||= []
			current.push el
		end
	end
	
	# add last current
	if current
		rv.push current
	end
	
	# return
	return rv
end