Class: Glaemscribe::API::Charset::VirtualChar

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

Defined Under Namespace

Classes: VirtualClass

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ VirtualChar

Returns a new instance of VirtualChar.



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# File 'lib/api/charset.rb', line 61

def initialize
  @classes      = {} # result_char_1 => [trigger_char_1, trigger_char_2 ...] , result_char_1 => ...
  @lookup_table = {}
  @reversed     = false
  @default      = nil
end

Instance Attribute Details

#charset ⇒ Object

Returns the value of attribute charset.



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# File 'lib/api/charset.rb', line 52

def charset
  @charset
end

#classes ⇒ Object

Returns the value of attribute classes.



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# File 'lib/api/charset.rb', line 51

def classes
  @classes
end

#default ⇒ Object

Returns the value of attribute default.



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# File 'lib/api/charset.rb', line 54

def default
  @default
end

#line ⇒ Object

Returns the value of attribute line.



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# File 'lib/api/charset.rb', line 49

def line
  @line
end

#names ⇒ Object

Returns the value of attribute names.



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# File 'lib/api/charset.rb', line 50

def names
  @names
end

#reversed ⇒ Object

Returns the value of attribute reversed.



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# File 'lib/api/charset.rb', line 53

def reversed
  @reversed
end

Instance Method Details

#[](trigger_char_name) ⇒ Object 



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# File 'lib/api/charset.rb', line 117

def [](trigger_char_name)
  @lookup_table[trigger_char_name]
end

#finalize ⇒ Object 



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# File 'lib/api/charset.rb', line 78

def finalize
  @lookup_table = {}
  @classes.each{ |vc|
    
    result_char   = vc.target
    trigger_chars = vc.triggers
    
    trigger_chars.each{ |trigger_char|
      found = @lookup_table[trigger_char]
      if found
        @charset.errors << Glaeml::Error.new(@line, "Trigger char #{trigger_char} found twice in virtual char.")
      else
        rc = @charset[result_char]
        tc = @charset[trigger_char]

        if rc.nil?
          @charset.errors << Glaeml::Error.new(@line, "Trigger char #{trigger_char} points to unknown result char #{result_char}.")
        elsif tc.nil?
          @charset.errors << Glaeml::Error.new(@line, "Unknown trigger char #{trigger_char}.")  
        elsif rc.class == VirtualChar
          @charset.errors << Glaeml::Error.new(@line, "Trigger char #{trigger_char} points to another virtual char #{result_char}. This is not supported!")
        else
          tc.names.each{|trigger_char_name| # Don't forget to match all name variants for that trigger char!
            @lookup_table[trigger_char_name] = rc
          }              
        end  
      end              
    }
  }
  if @default
    c = @charset[@default]
    if !c
      @charset.errors << Glaeml::Error.new(@line, "Default char #{@default} does not match any real character in the charset.")             
    elsif c.virtual?
      @charset.errors << Glaeml::Error.new(@line, "Default char #{@default} is virtual, it should be real only.")
    end
  end
end

#str ⇒ Object 



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# File 'lib/api/charset.rb', line 68

def str
  
  # Will be called if the virtual char could not be replaced and still exists at the end of the transcription chain
  if @default
    @charset[@default].str
  else
    VIRTUAL_CHAR_OUTPUT
  end
end

#virtual? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/api/charset.rb', line 121

def virtual?
  true
end