Module: CEML::Lexer

Includes:
Treetop::Runtime
Included in:
Casting, Instructions, LexerParser, Scripts
Defined in:
lib/ceml/lang/tt/lexer.rb

Defined Under Namespace

Modules: And0, And1, And2, Comment0, Distance0, Distance1, Duration0, Duration1, Eol0, Id0, Id1, Linebreak0, MappedRole0, MappedRole1, MappedRole2, Nl0, Number0, Number1, Range0, Range1, Range2, Role0, Role1, Role2, Role3, Role4, Rolemap0, Rolemap1, Rolemap2, Roles0, Roles1, Roles2, Text0

Instance Method Summary collapse

Instance Method Details

#_nt_and ⇒ Object 



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# File 'lib/ceml/lang/tt/lexer.rb', line 441

def _nt_and
  start_index = index
  if node_cache[:and].has_key?(index)
    cached = node_cache[:and][index]
    if cached
      cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0 = index
  i1, s1 = index, []
  i3, s3 = index, []
  r5 = _nt_ws
  if r5
    r4 = r5
  else
    r4 = instantiate_node(SyntaxNode,input, index...index)
  end
  s3 << r4
  if r4
    if has_terminal?(',', false, index)
      r6 = instantiate_node(SyntaxNode,input, index...(index + 1))
      @index += 1
    else
      terminal_parse_failure(',')
      r6 = nil
    end
    s3 << r6
  end
  if s3.last
    r3 = instantiate_node(SyntaxNode,input, i3...index, s3)
    r3.extend(And0)
  else
    @index = i3
    r3 = nil
  end
  if r3
    r2 = r3
  else
    r2 = instantiate_node(SyntaxNode,input, index...index)
  end
  s1 << r2
  if r2
    r7 = _nt_ws
    s1 << r7
    if r7
      if has_terminal?('and', false, index)
        r8 = instantiate_node(SyntaxNode,input, index...(index + 3))
        @index += 3
      else
        terminal_parse_failure('and')
        r8 = nil
      end
      s1 << r8
      if r8
        r9 = _nt_ws
        s1 << r9
      end
    end
  end
  if s1.last
    r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
    r1.extend(And1)
  else
    @index = i1
    r1 = nil
  end
  if r1
    r0 = r1
  else
    i10, s10 = index, []
    r12 = _nt_ws
    if r12
      r11 = r12
    else
      r11 = instantiate_node(SyntaxNode,input, index...index)
    end
    s10 << r11
    if r11
      if has_terminal?(',', false, index)
        r13 = instantiate_node(SyntaxNode,input, index...(index + 1))
        @index += 1
      else
        terminal_parse_failure(',')
        r13 = nil
      end
      s10 << r13
      if r13
        r15 = _nt_ws
        if r15
          r14 = r15
        else
          r14 = instantiate_node(SyntaxNode,input, index...index)
        end
        s10 << r14
      end
    end
    if s10.last
      r10 = instantiate_node(SyntaxNode,input, i10...index, s10)
      r10.extend(And2)
    else
      @index = i10
      r10 = nil
    end
    if r10
      r0 = r10
    else
      @index = i0
      r0 = nil
    end
  end

  node_cache[:and][start_index] = r0

  r0
end

#_nt_comment ⇒ Object 



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# File 'lib/ceml/lang/tt/lexer.rb', line 295

def _nt_comment
  start_index = index
  if node_cache[:comment].has_key?(index)
    cached = node_cache[:comment][index]
    if cached
      cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  if has_terminal?('//', false, index)
    r1 = instantiate_node(SyntaxNode,input, index...(index + 2))
    @index += 2
  else
    terminal_parse_failure('//')
    r1 = nil
  end
  s0 << r1
  if r1
    r2 = _nt_text
    s0 << r2
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(Comment0)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:comment][start_index] = r0

  r0
end

#_nt_distance ⇒ Object 



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# File 'lib/ceml/lang/tt/lexer.rb', line 887

def _nt_distance
  start_index = index
  if node_cache[:distance].has_key?(index)
    cached = node_cache[:distance][index]
    if cached
      cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  r1 = _nt_number
  s0 << r1
  if r1
    r3 = _nt_ws
    if r3
      r2 = r3
    else
      r2 = instantiate_node(SyntaxNode,input, index...index)
    end
    s0 << r2
    if r2
      i4 = index
      if has_terminal?('miles', false, index)
        r5 = instantiate_node(SyntaxNode,input, index...(index + 5))
        @index += 5
      else
        terminal_parse_failure('miles')
        r5 = nil
      end
      if r5
        r4 = r5
      else
        if has_terminal?('mile', false, index)
          r6 = instantiate_node(SyntaxNode,input, index...(index + 4))
          @index += 4
        else
          terminal_parse_failure('mile')
          r6 = nil
        end
        if r6
          r4 = r6
        else
          if has_terminal?('mi', false, index)
            r7 = instantiate_node(SyntaxNode,input, index...(index + 2))
            @index += 2
          else
            terminal_parse_failure('mi')
            r7 = nil
          end
          if r7
            r4 = r7
          else
            if has_terminal?('km', false, index)
              r8 = instantiate_node(SyntaxNode,input, index...(index + 2))
              @index += 2
            else
              terminal_parse_failure('km')
              r8 = nil
            end
            if r8
              r4 = r8
            else
              if has_terminal?('kilometers', false, index)
                r9 = instantiate_node(SyntaxNode,input, index...(index + 10))
                @index += 10
              else
                terminal_parse_failure('kilometers')
                r9 = nil
              end
              if r9
                r4 = r9
              else
                if has_terminal?('k', false, index)
                  r10 = instantiate_node(SyntaxNode,input, index...(index + 1))
                  @index += 1
                else
                  terminal_parse_failure('k')
                  r10 = nil
                end
                if r10
                  r4 = r10
                else
                  if has_terminal?('meters', false, index)
                    r11 = instantiate_node(SyntaxNode,input, index...(index + 6))
                    @index += 6
                  else
                    terminal_parse_failure('meters')
                    r11 = nil
                  end
                  if r11
                    r4 = r11
                  else
                    if has_terminal?('m', false, index)
                      r12 = instantiate_node(SyntaxNode,input, index...(index + 1))
                      @index += 1
                    else
                      terminal_parse_failure('m')
                      r12 = nil
                    end
                    if r12
                      r4 = r12
                    else
                      if has_terminal?('ft', false, index)
                        r13 = instantiate_node(SyntaxNode,input, index...(index + 2))
                        @index += 2
                      else
                        terminal_parse_failure('ft')
                        r13 = nil
                      end
                      if r13
                        r4 = r13
                      else
                        if has_terminal?('feet', false, index)
                          r14 = instantiate_node(SyntaxNode,input, index...(index + 4))
                          @index += 4
                        else
                          terminal_parse_failure('feet')
                          r14 = nil
                        end
                        if r14
                          r4 = r14
                        else
                          if has_terminal?('f', false, index)
                            r15 = instantiate_node(SyntaxNode,input, index...(index + 1))
                            @index += 1
                          else
                            terminal_parse_failure('f')
                            r15 = nil
                          end
                          if r15
                            r4 = r15
                          else
                            if has_terminal?('blocks', false, index)
                              r16 = instantiate_node(SyntaxNode,input, index...(index + 6))
                              @index += 6
                            else
                              terminal_parse_failure('blocks')
                              r16 = nil
                            end
                            if r16
                              r4 = r16
                            else
                              if has_terminal?('block', false, index)
                                r17 = instantiate_node(SyntaxNode,input, index...(index + 5))
                                @index += 5
                              else
                                terminal_parse_failure('block')
                                r17 = nil
                              end
                              if r17
                                r4 = r17
                              else
                                @index = i4
                                r4 = nil
                              end
                            end
                          end
                        end
                      end
                    end
                  end
                end
              end
            end
          end
        end
      end
      s0 << r4
    end
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(Distance0)
    r0.extend(Distance1)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:distance][start_index] = r0

  r0
end

#_nt_duration ⇒ Object 



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# File 'lib/ceml/lang/tt/lexer.rb', line 716

def _nt_duration
  start_index = index
  if node_cache[:duration].has_key?(index)
    cached = node_cache[:duration][index]
    if cached
      cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  r1 = _nt_number
  s0 << r1
  if r1
    r3 = _nt_ws
    if r3
      r2 = r3
    else
      r2 = instantiate_node(SyntaxNode,input, index...index)
    end
    s0 << r2
    if r2
      i4 = index
      if has_terminal?('seconds', false, index)
        r5 = instantiate_node(SyntaxNode,input, index...(index + 7))
        @index += 7
      else
        terminal_parse_failure('seconds')
        r5 = nil
      end
      if r5
        r4 = r5
      else
        if has_terminal?('second', false, index)
          r6 = instantiate_node(SyntaxNode,input, index...(index + 6))
          @index += 6
        else
          terminal_parse_failure('second')
          r6 = nil
        end
        if r6
          r4 = r6
        else
          if has_terminal?('s', false, index)
            r7 = instantiate_node(SyntaxNode,input, index...(index + 1))
            @index += 1
          else
            terminal_parse_failure('s')
            r7 = nil
          end
          if r7
            r4 = r7
          else
            if has_terminal?('minutes', false, index)
              r8 = instantiate_node(SyntaxNode,input, index...(index + 7))
              @index += 7
            else
              terminal_parse_failure('minutes')
              r8 = nil
            end
            if r8
              r4 = r8
            else
              if has_terminal?('minute', false, index)
                r9 = instantiate_node(SyntaxNode,input, index...(index + 6))
                @index += 6
              else
                terminal_parse_failure('minute')
                r9 = nil
              end
              if r9
                r4 = r9
              else
                if has_terminal?('min', false, index)
                  r10 = instantiate_node(SyntaxNode,input, index...(index + 3))
                  @index += 3
                else
                  terminal_parse_failure('min')
                  r10 = nil
                end
                if r10
                  r4 = r10
                else
                  if has_terminal?('hours', false, index)
                    r11 = instantiate_node(SyntaxNode,input, index...(index + 5))
                    @index += 5
                  else
                    terminal_parse_failure('hours')
                    r11 = nil
                  end
                  if r11
                    r4 = r11
                  else
                    if has_terminal?('hour', false, index)
                      r12 = instantiate_node(SyntaxNode,input, index...(index + 4))
                      @index += 4
                    else
                      terminal_parse_failure('hour')
                      r12 = nil
                    end
                    if r12
                      r4 = r12
                    else
                      if has_terminal?('hr', false, index)
                        r13 = instantiate_node(SyntaxNode,input, index...(index + 2))
                        @index += 2
                      else
                        terminal_parse_failure('hr')
                        r13 = nil
                      end
                      if r13
                        r4 = r13
                      else
                        if has_terminal?('h', false, index)
                          r14 = instantiate_node(SyntaxNode,input, index...(index + 1))
                          @index += 1
                        else
                          terminal_parse_failure('h')
                          r14 = nil
                        end
                        if r14
                          r4 = r14
                        else
                          @index = i4
                          r4 = nil
                        end
                      end
                    end
                  end
                end
              end
            end
          end
        end
      end
      s0 << r4
    end
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(Duration0)
    r0.extend(Duration1)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:duration][start_index] = r0

  r0
end

#_nt_eol ⇒ Object 



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# File 'lib/ceml/lang/tt/lexer.rb', line 251

def _nt_eol
  start_index = index
  if node_cache[:eol].has_key?(index)
    cached = node_cache[:eol][index]
    if cached
      cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  r1 = _nt_linebreak
  s0 << r1
  if r1
    i2 = index
    r3 = _nt_ws
    if r3
      r2 = nil
    else
      @index = i2
      r2 = instantiate_node(SyntaxNode,input, index...index)
    end
    s0 << r2
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(Eol0)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:eol][start_index] = r0

  r0
end

#_nt_id ⇒ Object 



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# File 'lib/ceml/lang/tt/lexer.rb', line 626

def _nt_id
  start_index = index
  if node_cache[:id].has_key?(index)
    cached = node_cache[:id][index]
    if cached
      cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  i1 = index
  i2, s2 = index, []
  r3 = _nt_reserved_word
  s2 << r3
  if r3
    r4 = _nt_ws
    s2 << r4
  end
  if s2.last
    r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
    r2.extend(Id0)
  else
    @index = i2
    r2 = nil
  end
  if r2
    r1 = nil
  else
    @index = i1
    r1 = instantiate_node(SyntaxNode,input, index...index)
  end
  s0 << r1
  if r1
    if has_terminal?('\G[a-zA-Z_]', true, index)
      r5 = true
      @index += 1
    else
      r5 = nil
    end
    s0 << r5
    if r5
      s6, i6 = [], index
      loop do
        if has_terminal?('\G[a-zA-Z_0-9=]', true, index)
          r7 = true
          @index += 1
        else
          r7 = nil
        end
        if r7
          s6 << r7
        else
          break
        end
      end
      r6 = instantiate_node(SyntaxNode,input, i6...index, s6)
      s0 << r6
    end
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(Id1)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:id][start_index] = r0

  r0
end

#_nt_linebreak ⇒ Object 



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# File 'lib/ceml/lang/tt/lexer.rb', line 178

def _nt_linebreak
  start_index = index
  if node_cache[:linebreak].has_key?(index)
    cached = node_cache[:linebreak][index]
    if cached
      cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0 = index
  i1, s1 = index, []
  if has_terminal?("\r", false, index)
    r2 = instantiate_node(SyntaxNode,input, index...(index + 1))
    @index += 1
  else
    terminal_parse_failure("\r")
    r2 = nil
  end
  s1 << r2
  if r2
    if has_terminal?("\n", false, index)
      r4 = instantiate_node(SyntaxNode,input, index...(index + 1))
      @index += 1
    else
      terminal_parse_failure("\n")
      r4 = nil
    end
    if r4
      r3 = r4
    else
      r3 = instantiate_node(SyntaxNode,input, index...index)
    end
    s1 << r3
  end
  if s1.last
    r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
    r1.extend(Linebreak0)
  else
    @index = i1
    r1 = nil
  end
  if r1
    r0 = r1
  else
    if has_terminal?("\n", false, index)
      r5 = instantiate_node(SyntaxNode,input, index...(index + 1))
      @index += 1
    else
      terminal_parse_failure("\n")
      r5 = nil
    end
    if r5
      r0 = r5
    else
      @index = i0
      r0 = nil
    end
  end

  node_cache[:linebreak][start_index] = r0

  r0
end

#_nt_mapped_role ⇒ Object 



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# File 'lib/ceml/lang/tt/lexer.rb', line 1393

def _nt_mapped_role
  start_index = index
  if node_cache[:mapped_role].has_key?(index)
    cached = node_cache[:mapped_role][index]
    if cached
      cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0 = index
  i1, s1 = index, []
  r2 = _nt_rolename
  s1 << r2
  if r2
    r3 = _nt_ws
    s1 << r3
    if r3
      if has_terminal?('as', false, index)
        r4 = instantiate_node(SyntaxNode,input, index...(index + 2))
        @index += 2
      else
        terminal_parse_failure('as')
        r4 = nil
      end
      s1 << r4
      if r4
        r5 = _nt_ws
        s1 << r5
        if r5
          r6 = _nt_rolename
          s1 << r6
        end
      end
    end
  end
  if s1.last
    r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
    r1.extend(MappedRole0)
  else
    @index = i1
    r1 = nil
  end
  if r1
    r0 = r1
    r0.extend(MappedRole2)
  else
    i7, s7 = index, []
    r8 = _nt_rolename
    s7 << r8
    if r8
      if has_terminal?('', false, index)
        r9 = instantiate_node(SyntaxNode,input, index...(index + 0))
        @index += 0
      else
        terminal_parse_failure('')
        r9 = nil
      end
      s7 << r9
    end
    if s7.last
      r7 = instantiate_node(SyntaxNode,input, i7...index, s7)
      r7.extend(MappedRole1)
    else
      @index = i7
      r7 = nil
    end
    if r7
      r0 = r7
      r0.extend(MappedRole2)
    else
      @index = i0
      r0 = nil
    end
  end

  node_cache[:mapped_role][start_index] = r0

  r0
end

#_nt_nl ⇒ Object 



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# File 'lib/ceml/lang/tt/lexer.rb', line 79

def _nt_nl
  start_index = index
  if node_cache[:nl].has_key?(index)
    cached = node_cache[:nl][index]
    if cached
      cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  s0, i0 = [], index
  loop do
    i1, s1 = index, []
    r3 = _nt_ws
    if r3
      r2 = r3
    else
      r2 = instantiate_node(SyntaxNode,input, index...index)
    end
    s1 << r2
    if r2
      r5 = _nt_comment
      if r5
        r4 = r5
      else
        r4 = instantiate_node(SyntaxNode,input, index...index)
      end
      s1 << r4
      if r4
        r6 = _nt_eol
        s1 << r6
      end
    end
    if s1.last
      r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
      r1.extend(Nl0)
    else
      @index = i1
      r1 = nil
    end
    if r1
      s0 << r1
    else
      break
    end
  end
  if s0.empty?
    @index = i0
    r0 = nil
  else
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
  end

  node_cache[:nl][start_index] = r0

  r0
end

#_nt_number ⇒ Object 



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# File 'lib/ceml/lang/tt/lexer.rb', line 341

def _nt_number
  start_index = index
  if node_cache[:number].has_key?(index)
    cached = node_cache[:number][index]
    if cached
      cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0 = index
  i1, s1 = index, []
  s2, i2 = [], index
  loop do
    if has_terminal?('\G[1-9]', true, index)
      r3 = true
      @index += 1
    else
      r3 = nil
    end
    if r3
      s2 << r3
    else
      break
    end
  end
  if s2.empty?
    @index = i2
    r2 = nil
  else
    r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
  end
  s1 << r2
  if r2
    s4, i4 = [], index
    loop do
      if has_terminal?('\G[0-9]', true, index)
        r5 = true
        @index += 1
      else
        r5 = nil
      end
      if r5
        s4 << r5
      else
        break
      end
    end
    r4 = instantiate_node(SyntaxNode,input, i4...index, s4)
    s1 << r4
  end
  if s1.last
    r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
    r1.extend(Number0)
  else
    @index = i1
    r1 = nil
  end
  if r1
    r0 = r1
    r0.extend(Number1)
  else
    if has_terminal?('0', false, index)
      r6 = instantiate_node(SyntaxNode,input, index...(index + 1))
      @index += 1
    else
      terminal_parse_failure('0')
      r6 = nil
    end
    if r6
      r0 = r6
      r0.extend(Number1)
    else
      @index = i0
      r0 = nil
    end
  end

  node_cache[:number][start_index] = r0

  r0
end

#_nt_qualifier ⇒ Object 



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# File 'lib/ceml/lang/tt/lexer.rb', line 1560

def _nt_qualifier
  start_index = index
  if node_cache[:qualifier].has_key?(index)
    cached = node_cache[:qualifier][index]
    if cached
      cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  r0 = _nt_id

  node_cache[:qualifier][start_index] = r0

  r0
end

#_nt_range ⇒ Object 



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# File 'lib/ceml/lang/tt/lexer.rb', line 1105

def _nt_range
  start_index = index
  if node_cache[:range].has_key?(index)
    cached = node_cache[:range][index]
    if cached
      cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0 = index
  i1, s1 = index, []
  r2 = _nt_number
  s1 << r2
  if r2
    if has_terminal?('-', false, index)
      r3 = instantiate_node(SyntaxNode,input, index...(index + 1))
      @index += 1
    else
      terminal_parse_failure('-')
      r3 = nil
    end
    s1 << r3
    if r3
      r4 = _nt_number
      s1 << r4
    end
  end
  if s1.last
    r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
    r1.extend(Range0)
  else
    @index = i1
    r1 = nil
  end
  if r1
    r0 = r1
    r0.extend(Range2)
  else
    i5, s5 = index, []
    r6 = _nt_number
    s5 << r6
    if r6
      if has_terminal?('+', false, index)
        r8 = instantiate_node(SyntaxNode,input, index...(index + 1))
        @index += 1
      else
        terminal_parse_failure('+')
        r8 = nil
      end
      if r8
        r7 = r8
      else
        r7 = instantiate_node(SyntaxNode,input, index...index)
      end
      s5 << r7
    end
    if s5.last
      r5 = instantiate_node(SyntaxNode,input, i5...index, s5)
      r5.extend(Range1)
    else
      @index = i5
      r5 = nil
    end
    if r5
      r0 = r5
      r0.extend(Range2)
    else
      if has_terminal?('an', false, index)
        r9 = instantiate_node(SyntaxNode,input, index...(index + 2))
        @index += 2
      else
        terminal_parse_failure('an')
        r9 = nil
      end
      if r9
        r0 = r9
        r0.extend(Range2)
      else
        if has_terminal?('a', false, index)
          r10 = instantiate_node(SyntaxNode,input, index...(index + 1))
          @index += 1
        else
          terminal_parse_failure('a')
          r10 = nil
        end
        if r10
          r0 = r10
          r0.extend(Range2)
        else
          if has_terminal?('one', false, index)
            r11 = instantiate_node(SyntaxNode,input, index...(index + 3))
            @index += 3
          else
            terminal_parse_failure('one')
            r11 = nil
          end
          if r11
            r0 = r11
            r0.extend(Range2)
          else
            if has_terminal?('the', false, index)
              r12 = instantiate_node(SyntaxNode,input, index...(index + 3))
              @index += 3
            else
              terminal_parse_failure('the')
              r12 = nil
            end
            if r12
              r0 = r12
              r0.extend(Range2)
            else
              if has_terminal?('some', false, index)
                r13 = instantiate_node(SyntaxNode,input, index...(index + 4))
                @index += 4
              else
                terminal_parse_failure('some')
                r13 = nil
              end
              if r13
                r0 = r13
                r0.extend(Range2)
              else
                if has_terminal?('several', false, index)
                  r14 = instantiate_node(SyntaxNode,input, index...(index + 7))
                  @index += 7
                else
                  terminal_parse_failure('several')
                  r14 = nil
                end
                if r14
                  r0 = r14
                  r0.extend(Range2)
                else
                  if has_terminal?('many', false, index)
                    r15 = instantiate_node(SyntaxNode,input, index...(index + 4))
                    @index += 4
                  else
                    terminal_parse_failure('many')
                    r15 = nil
                  end
                  if r15
                    r0 = r15
                    r0.extend(Range2)
                  else
                    if has_terminal?('all', false, index)
                      r16 = instantiate_node(SyntaxNode,input, index...(index + 3))
                      @index += 3
                    else
                      terminal_parse_failure('all')
                      r16 = nil
                    end
                    if r16
                      r0 = r16
                      r0.extend(Range2)
                    else
                      @index = i0
                      r0 = nil
                    end
                  end
                end
              end
            end
          end
        end
      end
    end
  end

  node_cache[:range][start_index] = r0

  r0
end

#_nt_reserved_word ⇒ Object 



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# File 'lib/ceml/lang/tt/lexer.rb', line 560

def _nt_reserved_word
  start_index = index
  if node_cache[:reserved_word].has_key?(index)
    cached = node_cache[:reserved_word][index]
    if cached
      cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0 = index
  if has_terminal?('and', false, index)
    r1 = instantiate_node(SyntaxNode,input, index...(index + 3))
    @index += 3
  else
    terminal_parse_failure('and')
    r1 = nil
  end
  if r1
    r0 = r1
  else
    if has_terminal?('within', false, index)
      r2 = instantiate_node(SyntaxNode,input, index...(index + 6))
      @index += 6
    else
      terminal_parse_failure('within')
      r2 = nil
    end
    if r2
      r0 = r2
    else
      if has_terminal?('over', false, index)
        r3 = instantiate_node(SyntaxNode,input, index...(index + 4))
        @index += 4
      else
        terminal_parse_failure('over')
        r3 = nil
      end
      if r3
        r0 = r3
      else
        @index = i0
        r0 = nil
      end
    end
  end

  node_cache[:reserved_word][start_index] = r0

  r0
end

#_nt_role ⇒ Object 



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# File 'lib/ceml/lang/tt/lexer.rb', line 1669

def _nt_role
  start_index = index
  if node_cache[:role].has_key?(index)
    cached = node_cache[:role][index]
    if cached
      cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0 = index
  i1, s1 = index, []
  r2 = _nt_rolename
  s1 << r2
  if r2
    i3 = index
    r4 = _nt_and
    if r4
      @index = i3
      r3 = instantiate_node(SyntaxNode,input, index...index)
    else
      r3 = nil
    end
    s1 << r3
  end
  if s1.last
    r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
    r1.extend(Role0)
  else
    @index = i1
    r1 = nil
  end
  if r1
    r0 = r1
    r0.extend(Role4)
  else
    i5, s5 = index, []
    r6 = _nt_range
    s5 << r6
    if r6
      r7 = _nt_ws
      s5 << r7
      if r7
        r8 = _nt_qualifier
        s5 << r8
        if r8
          r9 = _nt_ws
          s5 << r9
          if r9
            r10 = _nt_rolename
            s5 << r10
          end
        end
      end
    end
    if s5.last
      r5 = instantiate_node(SyntaxNode,input, i5...index, s5)
      r5.extend(Role1)
    else
      @index = i5
      r5 = nil
    end
    if r5
      r0 = r5
      r0.extend(Role4)
    else
      i11, s11 = index, []
      r12 = _nt_range
      s11 << r12
      if r12
        r13 = _nt_ws
        s11 << r13
        if r13
          r14 = _nt_rolename
          s11 << r14
        end
      end
      if s11.last
        r11 = instantiate_node(SyntaxNode,input, i11...index, s11)
        r11.extend(Role2)
      else
        @index = i11
        r11 = nil
      end
      if r11
        r0 = r11
        r0.extend(Role4)
      else
        i15, s15 = index, []
        r16 = _nt_qualifier
        s15 << r16
        if r16
          r17 = _nt_ws
          s15 << r17
          if r17
            r18 = _nt_rolename
            s15 << r18
          end
        end
        if s15.last
          r15 = instantiate_node(SyntaxNode,input, i15...index, s15)
          r15.extend(Role3)
        else
          @index = i15
          r15 = nil
        end
        if r15
          r0 = r15
          r0.extend(Role4)
        else
          r19 = _nt_rolename
          if r19
            r0 = r19
            r0.extend(Role4)
          else
            @index = i0
            r0 = nil
          end
        end
      end
    end
  end

  node_cache[:role][start_index] = r0

  r0
end

#_nt_rolemap ⇒ Object 



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# File 'lib/ceml/lang/tt/lexer.rb', line 1305

def _nt_rolemap
  start_index = index
  if node_cache[:rolemap].has_key?(index)
    cached = node_cache[:rolemap][index]
    if cached
      cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  r1 = _nt_mapped_role
  s0 << r1
  if r1
    s2, i2 = [], index
    loop do
      i3, s3 = index, []
      r4 = _nt_and
      s3 << r4
      if r4
        r5 = _nt_mapped_role
        s3 << r5
      end
      if s3.last
        r3 = instantiate_node(SyntaxNode,input, i3...index, s3)
        r3.extend(Rolemap0)
      else
        @index = i3
        r3 = nil
      end
      if r3
        s2 << r3
      else
        break
      end
    end
    r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
    s0 << r2
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(Rolemap1)
    r0.extend(Rolemap2)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:rolemap][start_index] = r0

  r0
end

#_nt_rolename ⇒ Object 



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# File 'lib/ceml/lang/tt/lexer.rb', line 1578

def _nt_rolename
  start_index = index
  if node_cache[:rolename].has_key?(index)
    cached = node_cache[:rolename][index]
    if cached
      cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  r0 = _nt_id

  node_cache[:rolename][start_index] = r0

  r0
end

#_nt_roles ⇒ Object 



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# File 'lib/ceml/lang/tt/lexer.rb', line 1506

def _nt_roles
  start_index = index
  if node_cache[:roles].has_key?(index)
    cached = node_cache[:roles][index]
    if cached
      cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  r1 = _nt_role
  s0 << r1
  if r1
    s2, i2 = [], index
    loop do
      i3, s3 = index, []
      r4 = _nt_and
      s3 << r4
      if r4
        r5 = _nt_role
        s3 << r5
      end
      if s3.last
        r3 = instantiate_node(SyntaxNode,input, i3...index, s3)
        r3.extend(Roles0)
      else
        @index = i3
        r3 = nil
      end
      if r3
        s2 << r3
      else
        break
      end
    end
    r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
    s0 << r2
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(Roles1)
    r0.extend(Roles2)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:roles][start_index] = r0

  r0
end

#_nt_text ⇒ Object 



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# File 'lib/ceml/lang/tt/lexer.rb', line 15

def _nt_text
  start_index = index
  if node_cache[:text].has_key?(index)
    cached = node_cache[:text][index]
    if cached
      cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  s0, i0 = [], index
  loop do
    i1, s1 = index, []
    i2 = index
    r3 = _nt_eol
    if r3
      r2 = nil
    else
      @index = i2
      r2 = instantiate_node(SyntaxNode,input, index...index)
    end
    s1 << r2
    if r2
      if index < input_length
        r4 = instantiate_node(SyntaxNode,input, index...(index + 1))
        @index += 1
      else
        terminal_parse_failure("any character")
        r4 = nil
      end
      s1 << r4
    end
    if s1.last
      r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
      r1.extend(Text0)
    else
      @index = i1
      r1 = nil
    end
    if r1
      s0 << r1
    else
      break
    end
  end
  if s0.empty?
    @index = i0
    r0 = nil
  else
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
  end

  node_cache[:text][start_index] = r0

  r0
end

#_nt_ws ⇒ Object 



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# File 'lib/ceml/lang/tt/lexer.rb', line 138

def _nt_ws
  start_index = index
  if node_cache[:ws].has_key?(index)
    cached = node_cache[:ws][index]
    if cached
      cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  s0, i0 = [], index
  loop do
    if has_terminal?('\G[ \\t\\f]', true, index)
      r1 = true
      @index += 1
    else
      r1 = nil
    end
    if r1
      s0 << r1
    else
      break
    end
  end
  if s0.empty?
    @index = i0
    r0 = nil
  else
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
  end

  node_cache[:ws][start_index] = r0

  r0
end

#root ⇒ Object 



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# File 'lib/ceml/lang/tt/lexer.rb', line 8

def root
  @root ||= :text
end