Class: Germinate::Selector

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

Constant Summary collapse

PATTERN = 
/([@$])?(\w+)?(:([^\s\|]+))?(\|([\w|]+))?/
EXCERPT_PATTERN = 
%r{((-?\d+)|(/[^/]*/))(((\.\.\.?)|(,))((-?\d+)|(/[^/]*/)))?}

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(string, default_key) ⇒ Selector 



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# File 'lib/germinate/selector.rb', line 15

def initialize(string, default_key)
  @string      = string
  @default_key = default_key
  match_data = case string
               when "", nil then {}
               else PATTERN.match(string)
               end

  @selector_type = 
    case match_data[1]
    when "$" then :special
    when "@", nil then :code
    else raise "Unknown selector type '#{match_data[1]}'"
    end
  @key = match_data[2] || default_key
  if match_data[3]
    parse_excerpt(match_data[3])
  else
    @delimiter    = '..'
    @start_offset = 1
    @end_offset   = -1
    @length       = nil
  end
  @pipeline = String(match_data[6]).split("|")
end

Instance Attribute Details

#default_key ⇒ Object (readonly)

Returns the value of attribute default_key.



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# File 'lib/germinate/selector.rb', line 10

def default_key
  @default_key
end

#delimiter ⇒ Object (readonly)

Returns the value of attribute delimiter.



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# File 'lib/germinate/selector.rb', line 8

def delimiter
  @delimiter
end

#end_offset ⇒ Object (readonly)

Returns the value of attribute end_offset.



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# File 'lib/germinate/selector.rb', line 6

def end_offset
  @end_offset
end

#key ⇒ Object (readonly)

Returns the value of attribute key.



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# File 'lib/germinate/selector.rb', line 4

def key
  @key
end

#length ⇒ Object (readonly)

Returns the value of attribute length.



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# File 'lib/germinate/selector.rb', line 7

def length
  @length
end

#pipeline ⇒ Object (readonly)

Returns the value of attribute pipeline.



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# File 'lib/germinate/selector.rb', line 9

def pipeline
  @pipeline
end

#selector_type ⇒ Object (readonly)

Returns the value of attribute selector_type.



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# File 'lib/germinate/selector.rb', line 3

def selector_type
  @selector_type
end

#start_offset ⇒ Object (readonly)

Returns the value of attribute start_offset.



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# File 'lib/germinate/selector.rb', line 5

def start_offset
  @start_offset
end

#string ⇒ Object (readonly)

Returns the value of attribute string.



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# File 'lib/germinate/selector.rb', line 2

def string
  @string
end

Instance Method Details

#end_offset_for_slice ⇒ Object 



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# File 'lib/germinate/selector.rb', line 45

def end_offset_for_slice
  offset_for_slice(end_offset)
end

#start_offset_for_slice ⇒ Object 



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# File 'lib/germinate/selector.rb', line 41

def start_offset_for_slice
  offset_for_slice(start_offset)
end