Class: KPeg::StringEscape

Inherits:
CompiledParser show all
Defined in:
lib/kpeg/string_escape.rb

Constant Summary collapse

Rules = 
{}

Instance Attribute Summary collapse

Attributes inherited from CompiledParser

#failed_rule, #failing_rule_offset, #pos, #result, #string

Instance Method Summary collapse

Methods inherited from CompiledParser

#apply, #external_invoke, #failure_caret, #failure_character, #failure_info, #failure_oneline, #get_byte, #get_text, #grow_lr, #initialize, #match_string, #parse, #raise_error, rule_info, #scan, #set_failed_rule, #setup_foreign_grammar, #setup_parser, #show_error, #show_pos

Methods included from Position

#current_column, #current_line, #lines

Constructor Details

This class inherits a constructor from KPeg::CompiledParser

Instance Attribute Details

#text ⇒ Object (readonly)

Returns the value of attribute text.



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# File 'lib/kpeg/string_escape.rb', line 6

def text
  @text
end

Instance Method Details

#_embed ⇒ Object

embed = embed_segs:s { @text = s }



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# File 'lib/kpeg/string_escape.rb', line 293

def _embed

  _save = self.pos
  while true # sequence
  _tmp = apply(:_embed_segs)
  s = @result
  unless _tmp
    self.pos = _save
    break
  end
  @result = begin;  @text = s ; end
  _tmp = true
  unless _tmp
    self.pos = _save
  end
  break
  end # end sequence

  set_failed_rule :_embed unless _tmp
  return _tmp
end

#_embed_seg ⇒ Object

embed_seg = (“#” { “\#” } | segment)



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# File 'lib/kpeg/string_escape.rb', line 220

def _embed_seg

  _save = self.pos
  while true # choice

  _save1 = self.pos
  while true # sequence
  _tmp = match_string("#")
  unless _tmp
    self.pos = _save1
    break
  end
  @result = begin;  "\\#" ; end
  _tmp = true
  unless _tmp
    self.pos = _save1
  end
  break
  end # end sequence

  break if _tmp
  self.pos = _save
  _tmp = apply(:_segment)
  break if _tmp
  self.pos = _save
  break
  end # end choice

  set_failed_rule :_embed_seg unless _tmp
  return _tmp
end

#_embed_segs ⇒ Object

embed_segs = (embed_seg:s embed_segs:r { “#s#r” } | embed_seg)



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# File 'lib/kpeg/string_escape.rb', line 253

def _embed_segs

  _save = self.pos
  while true # choice

  _save1 = self.pos
  while true # sequence
  _tmp = apply(:_embed_seg)
  s = @result
  unless _tmp
    self.pos = _save1
    break
  end
  _tmp = apply(:_embed_segs)
  r = @result
  unless _tmp
    self.pos = _save1
    break
  end
  @result = begin;  "#{s}#{r}" ; end
  _tmp = true
  unless _tmp
    self.pos = _save1
  end
  break
  end # end sequence

  break if _tmp
  self.pos = _save
  _tmp = apply(:_embed_seg)
  break if _tmp
  self.pos = _save
  break
  end # end choice

  set_failed_rule :_embed_segs unless _tmp
  return _tmp
end

#_root ⇒ Object

root = segments:s { @text = s }



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# File 'lib/kpeg/string_escape.rb', line 197

def _root

  _save = self.pos
  while true # sequence
  _tmp = apply(:_segments)
  s = @result
  unless _tmp
    self.pos = _save
    break
  end
  @result = begin;  @text = s ; end
  _tmp = true
  unless _tmp
    self.pos = _save
  end
  break
  end # end sequence

  set_failed_rule :_root unless _tmp
  return _tmp
end

#_segment ⇒ Object

segment = (< /[w ]+/ > { text } | “\” { “\\” } | “n” { “\n” } | “t” { “\t” } | “b” { “\b” } | “"” { “\"” } | < . > { text })



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# File 'lib/kpeg/string_escape.rb', line 11

def _segment

  _save = self.pos
  while true # choice

  _save1 = self.pos
  while true # sequence
  _text_start = self.pos
  _tmp = scan(/\A(?-mix:[\w ]+)/)
  if _tmp
    text = get_text(_text_start)
  end
  unless _tmp
    self.pos = _save1
    break
  end
  @result = begin;  text ; end
  _tmp = true
  unless _tmp
    self.pos = _save1
  end
  break
  end # end sequence

  break if _tmp
  self.pos = _save

  _save2 = self.pos
  while true # sequence
  _tmp = match_string("\\")
  unless _tmp
    self.pos = _save2
    break
  end
  @result = begin;  "\\\\" ; end
  _tmp = true
  unless _tmp
    self.pos = _save2
  end
  break
  end # end sequence

  break if _tmp
  self.pos = _save

  _save3 = self.pos
  while true # sequence
  _tmp = match_string("\n")
  unless _tmp
    self.pos = _save3
    break
  end
  @result = begin;  "\\n" ; end
  _tmp = true
  unless _tmp
    self.pos = _save3
  end
  break
  end # end sequence

  break if _tmp
  self.pos = _save

  _save4 = self.pos
  while true # sequence
  _tmp = match_string("\t")
  unless _tmp
    self.pos = _save4
    break
  end
  @result = begin;  "\\t" ; end
  _tmp = true
  unless _tmp
    self.pos = _save4
  end
  break
  end # end sequence

  break if _tmp
  self.pos = _save

  _save5 = self.pos
  while true # sequence
  _tmp = match_string("\b")
  unless _tmp
    self.pos = _save5
    break
  end
  @result = begin;  "\\b" ; end
  _tmp = true
  unless _tmp
    self.pos = _save5
  end
  break
  end # end sequence

  break if _tmp
  self.pos = _save

  _save6 = self.pos
  while true # sequence
  _tmp = match_string("\"")
  unless _tmp
    self.pos = _save6
    break
  end
  @result = begin;  "\\\"" ; end
  _tmp = true
  unless _tmp
    self.pos = _save6
  end
  break
  end # end sequence

  break if _tmp
  self.pos = _save

  _save7 = self.pos
  while true # sequence
  _text_start = self.pos
  _tmp = get_byte
  if _tmp
    text = get_text(_text_start)
  end
  unless _tmp
    self.pos = _save7
    break
  end
  @result = begin;  text ; end
  _tmp = true
  unless _tmp
    self.pos = _save7
  end
  break
  end # end sequence

  break if _tmp
  self.pos = _save
  break
  end # end choice

  set_failed_rule :_segment unless _tmp
  return _tmp
end

#_segments ⇒ Object

segments = (segment:s segments:r { “#s#r” } | segment)



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# File 'lib/kpeg/string_escape.rb', line 157

def _segments

  _save = self.pos
  while true # choice

  _save1 = self.pos
  while true # sequence
  _tmp = apply(:_segment)
  s = @result
  unless _tmp
    self.pos = _save1
    break
  end
  _tmp = apply(:_segments)
  r = @result
  unless _tmp
    self.pos = _save1
    break
  end
  @result = begin;  "#{s}#{r}" ; end
  _tmp = true
  unless _tmp
    self.pos = _save1
  end
  break
  end # end sequence

  break if _tmp
  self.pos = _save
  _tmp = apply(:_segment)
  break if _tmp
  self.pos = _save
  break
  end # end choice

  set_failed_rule :_segments unless _tmp
  return _tmp
end