Class: Silicon::Routing::SyntaxErrorInterpreter

Inherits:
Object
  • Object
show all
Defined in:
lib/silicon/routing/syntax_error_interpreter.rb

Instance Method Summary collapse

Constructor Details

#initialize(syntax_parser) ⇒ SyntaxErrorInterpreter

Returns a new instance of SyntaxErrorInterpreter.



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# File 'lib/silicon/routing/syntax_error_interpreter.rb', line 6

def initialize(syntax_parser)
  @syntax_parser = syntax_parser
end

Instance Method Details

#interpret ⇒ Object 



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# File 'lib/silicon/routing/syntax_error_interpreter.rb', line 10

def interpret
  line_num = 1
  (0..@syntax_parser.max_terminal_failure_index - 1).each {|i|
    line_num += 1 if @syntax_parser.input[i] == ';'
  }

  message = "Syntax error in routes definition, line #{line_num}. Expected: "
  expected = []
  @syntax_parser.terminal_failures.each do |f|
    item = f.expected_string
             .gsub('^', '<space>/<tab>')
             .gsub(';', '<new line>')
    expected << item
  end
  message + expected.join(', ') + '.'
end