Class: Exfuz::Query

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

Constant Summary collapse

MAX_UTF_8_BYTES = 
3

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(caret) ⇒ Query

Returns a new instance of Query.



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# File 'lib/exfuz/query.rb', line 12

def initialize(caret)
  @chars = []
  @line = ''
  @caret = caret
  @offset = caret[1]
end

Instance Attribute Details

#caret ⇒ Object (readonly)

Returns the value of attribute caret.



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# File 'lib/exfuz/query.rb', line 8

def caret
  @caret
end

#line ⇒ Object (readonly)

Returns the value of attribute line.



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# File 'lib/exfuz/query.rb', line 8

def line
  @line
end

Instance Method Details

#add(ch_or_chs) ⇒ Object 



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# File 'lib/exfuz/query.rb', line 23

def add(ch_or_chs)
  if ch_or_chs.instance_of?(Array)
    ch_or_chs.each do |ch|
      insert_at_caret(ch)
      right
    end
  elsif ch_or_chs.instance_of?(String)
    insert_at_caret(ch_or_chs)
    right
  end
end

#delete ⇒ Object 



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# File 'lib/exfuz/query.rb', line 35

def delete
  return if left_end?(@caret[1])

  left
  remove_at_caret
end

#left(direction = 1) ⇒ Object 



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# File 'lib/exfuz/query.rb', line 48

def left(direction = 1)
  col = 0

  col += 1 while direction > col && prev_caret
end

#right(direction = 1) ⇒ Object 



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# File 'lib/exfuz/query.rb', line 42

def right(direction = 1)
  col = 0

  col += 1 while direction > col && next_caret
end

#text ⇒ Object 



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# File 'lib/exfuz/query.rb', line 19

def text
  @chars.join
end