Class: FXIRBInputMethod

Inherits:
IRB::StdioInputMethod
  • Object
show all
Defined in:
lib/fxirb.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ FXIRBInputMethod

Returns a new instance of FXIRBInputMethod.



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# File 'lib/fxirb.rb', line 41

def initialize
		super 
		@history = 1
		@begin = nil
		@end = nil
		@print_prompt = true
		@continued_from = nil
		@gets_mode = false
end

Instance Attribute Details

#gets_mode ⇒ Object

Returns the value of attribute gets_mode.



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# File 'lib/fxirb.rb', line 39

def gets_mode
  @gets_mode
end

#print_prompt ⇒ Object

Returns the value of attribute print_prompt.



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# File 'lib/fxirb.rb', line 39

def print_prompt
  @print_prompt
end

Instance Method Details

#gets ⇒ Object 



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# File 'lib/fxirb.rb', line 51

def gets 
	if @gets_mode
		return FXIrb.instance.get_line
	end

	if (a = @prompt.match(/(\d+)[>*]/))
		level = a[1].to_i
		continued = @prompt =~ /\*\s*$/
	else
		level = 0
	end

	if level > 0 or continued
		@continued_from ||= @line_no
	elsif @continued_from
		merge_last(@line_no-@continued_from+1)
		@continued_from = nil
	end

	l = @line.length
	@line = @line.reverse.uniq.reverse
	delta = l - @line.length
	@line_no -= delta
	@history -= delta

	if print_prompt
		print @prompt

		#indentation
		print "  "*level
	end

	str = FXIrb.instance.get_line

	@line_no += 1
	@history = @line_no + 1
	@line[@line_no] = str

	str
end

#merge_last(i) ⇒ Object

merge a block spanning several lines into one n-separated line



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# File 'lib/fxirb.rb', line 93

def merge_last(i)
	return unless i > 1
	range = -i..-1
	@line[range] = @line[range].join
	@line_no -= (i-1)
	@history -= (i-1)
end

#next_cmd ⇒ Object 



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# File 'lib/fxirb.rb', line 111

def next_cmd
	return "" if @gets_mode

	if (@line_no > 0) && (@history < @line_no)
		@history += 1
		return line(@history)
	end
	return ""
end

#prev_cmd ⇒ Object 



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# File 'lib/fxirb.rb', line 101

def prev_cmd
	return "" if @gets_mode

	if @line_no > 0
		@history -= 1 unless @history <= 1
		return line(@history)
	end
	return ""
end