Class: Flott::Parser::RubyMode

Inherits:
Mode
  • Object
show all
Defined in:
lib/flott.rb

Overview

This Mode class handles the Parser’s RubyMode state.

Instance Attribute Summary

Attributes inherited from Mode

#parser

Instance Method Summary collapse

Methods inherited from Mode

#initialize, #scanner, #state

Constructor Details

This class inherits a constructor from Flott::Parser::Mode

Instance Method Details

#scan ⇒ Object

Scan the template in RubyMode.



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# File 'lib/flott.rb', line 892

def scan
  case
  when state.opened == 0 && scanner.scan(MINCLOSE)
    state.skip_cr = true
    case state.last_open
    when :PRIOPEN
      state.compiled << "\n))\n"
    when :RAWOPEN
      state.compiled << "\n).to_s)\n"
    when :COMOPEN
      state.compiled << "\n=end\n"
    else
      state.compiled << "\n"
    end
    parser.goto_text_mode
    state.last_open = nil
  when state.opened == 0 && scanner.scan(CLOSE)
    parser.goto_text_mode
    case state.last_open
    when :PRIOPEN
      state.compiled << "\n))\n"
    when :RAWOPEN
      state.compiled << "\n).to_s)\n"
    when :COMOPEN
      state.compiled << "\n=end\n"
    else
      state.compiled << "\n"
    end
    state.last_open = nil
  when scanner.scan(ESCCLOSE)
    state.compiled << scanner[0]
  when scanner.scan(CLOSE) && state.opened != 0,
      scanner.scan(MINCLOSE) && state.opened != 0
    state.opened -= 1
    state.compiled << scanner[0]
  when scanner.scan(ESCOPEN)
    state.compiled << scanner[0]
  when scanner.scan(OPEN)
    state.opened += 1
    state.compiled << scanner[0]
  when scanner.scan(TEXT)
    state.compiled << scanner[0]
  when scanner.scan(CURLY)
    state.compiled << '\\' << scanner[0]
  when scanner.scan(ESC_CLOSURE)
    s = scanner[0]
    ssize = s.size
    if ssize % 2 == 0
      state.compiled << s * 2
    else
      state.compiled << s[0, ssize - 1] * 2
      state.compiled << eval(%'"\\#{scanner.scan(/./)}"')
    end
  else
    raise CompileError, "unknown tokens '#{scanner.peek(40)}'"
  end
end