Class: ShellOpts::Token

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

Constant Summary collapse

KINDS =

Each kind should have a corresponding Grammar class with the same name

[
    :program, :section, :option, :command, :spec, :argument, :usage,
    :usage_string, :brief, :text, :blank 
]

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(kind, lineno, charno, source) ⇒ Token

Returns a new instance of Token.



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# File 'lib/shellopts/token.rb', line 23

def initialize(kind, lineno, charno, source)
  constrain kind, :program, *KINDS
  @kind, @lineno, @charno, @source = kind, lineno, charno, source
end

Instance Attribute Details

#charno ⇒ Object

Char number (one-based). The lexer may adjust the char number (eg. for blank lines)



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# File 'lib/shellopts/token.rb', line 18

def charno
  @charno
end

#kind ⇒ Object (readonly)

Kind of token



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# File 'lib/shellopts/token.rb', line 11

def kind
  @kind
end

#lineno ⇒ Object (readonly)

Line number (one-based)



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# File 'lib/shellopts/token.rb', line 14

def lineno
  @lineno
end

#source ⇒ Object (readonly)

Source of the token



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# File 'lib/shellopts/token.rb', line 21

def source
  @source
end

Instance Method Details

#dump ⇒ Object 



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# File 'lib/shellopts/token.rb', line 40

def dump
  puts "#{kind}@#{lineno}:#{charno} #{source.inspect}"
end

#inspect ⇒ Object 



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# File 'lib/shellopts/token.rb', line 36

def inspect() 
  "<#{self.class.to_s.sub(/.*::/, "")} #{pos} #{kind.inspect} #{source.inspect}>"
end

#pos(start_lineno = 1, start_charno = 1) ⇒ Object 



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# File 'lib/shellopts/token.rb', line 30

def pos(start_lineno = 1, start_charno = 1) 
  "#{start_lineno + lineno - 1}:#{start_charno + charno - 1}" 
end

#to_s ⇒ Object 



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# File 'lib/shellopts/token.rb', line 34

def to_s() source end