Class: Regextest::Front::Parenthesis::Paren

Inherits:
Object
  • Object
show all
Includes:
Common, Empty
Defined in:
lib/regextest/front/parenthesis.rb

Constant Summary collapse

@@id =

a class variable for generating unique name of element

0

Constants included from Common

Common::TstConstDebug, Common::TstConstRecursionMax, Common::TstConstRepeatMax, Common::TstConstRetryMax, Common::TstConstRetryMaxSecond, Common::TstConstTimeout, Common::TstConstUnicodeCharSet, Common::TstFixnumMax

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Common

#TstLog, #TstMdPrint, #TstRand, #TstShuffle, #is_random?, #reset_random_called

Constructor Details

#initialize(paren_start, element = nil, paren_end = nil) ⇒ Paren

Constructor



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# File 'lib/regextest/front/parenthesis.rb', line 17

def initialize(paren_start, element = nil, paren_end = nil)
  @options = @@parse_options
  @paren_type = paren_start[0]
  @offset = paren_start[1]
  if paren_end
    @length = (paren_end[1] - paren_start[1]) + paren_end[2]
  else
    @length = paren_start[2]
  end
  
  # delete head '(', '?', and tail ")"
  @prefix = @paren_type.sub(/^\(\??/, "")
  if @prefix.index("(") != 0
    @prefix.sub!(/\)$/, "")
  end
  
  @name = get_name(@prefix)
  @condition = nil  # set at generating json
  @refer_name = nil
  if element
    TstLog("Parenthesis: name:#{@name}, offset:#{@offset}, element:#{element}")
    @element = element
    @type_name = "LEX_PAREN"
  else
    TstLog("Parenthesis: name:#{@name}, offset:#{@offset}, element: \"\"")
    @element = TEmpty.new
    @type_name = "LEX_OPTION_PAREN"    # (?x-i) etc.
  end
  @generated_string = []
  @nest = 0
end

Instance Attribute Details

#length ⇒ Object (readonly)

Returns the value of attribute length.



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# File 'lib/regextest/front/parenthesis.rb', line 49

def length
  @length
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/regextest/front/parenthesis.rb', line 49

def name
  @name
end

#offset ⇒ Object (readonly)

Returns the value of attribute offset.



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# File 'lib/regextest/front/parenthesis.rb', line 49

def offset
  @offset
end

#prefix ⇒ Object (readonly)

Returns the value of attribute prefix.



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# File 'lib/regextest/front/parenthesis.rb', line 49

def prefix
  @prefix
end

#refer_name ⇒ Object (readonly)

Returns the value of attribute refer_name.



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# File 'lib/regextest/front/parenthesis.rb', line 49

def refer_name
  @refer_name
end

Instance Method Details

#get_condition(prefix) ⇒ Object

get condition of parenthesis



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# File 'lib/regextest/front/parenthesis.rb', line 61

def get_condition(prefix)
  # puts "prefix: #{prefix}"
  if(md = prefix.match(/^\((\d+)\)$/))
    condition_name = @options[:parens].get_paren(md[1].to_i)
    if !condition_name
      raise "condition number #{prefix} is invalid"
    end
  elsif(md = prefix.match(/(?u:^\(<(\w+)>\)|\('(\w+)'\)$)/))
    match_string = md[1] || md[2]
    condition_name = @options[:parens].get_paren(match_string)
    if !condition_name
      raise "condition name (#{match_string}) is not found"
    end
  else
    condition_name = nil
  end
  
  # check number of elements
  if(condition_name)
    if(Regextest::Front::Selectable::Selectable === @element)
      if(@element.candidates.size > 2)
        raise "invalid condition. 1 or 2 selectable elements"
      end
    end
  end
  
  condition_name
end

#get_name(prefix) ⇒ Object

get name of parenthesis (if any)



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# File 'lib/regextest/front/parenthesis.rb', line 52

def get_name(prefix)
  if(md = prefix.match(/(?u:^[<'](\w+)[>']$)/))
    md[1]
  else
    nil
  end
end

#get_value(relative_num = 0) ⇒ Object

get generated string



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# File 'lib/regextest/front/parenthesis.rb', line 96

def get_value(relative_num = 0)
  # print "gen: "; pp @generated_string
  if(@generated_string.size > 0)
    @generated_string[-1]
  else
    warn "Error: refer uninitialized parenthesis"
    nil
  end
end

#json ⇒ Object

transform to json format



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# File 'lib/regextest/front/parenthesis.rb', line 132

def json
  @@id += 1
  @condition = get_condition(@prefix)
  condition_name = @condition.refer_name if @condition
  "{\"type\": \"#{@type_name}\"," +
  " \"name\": \"#{@name}\"," +
  " \"offset\": \"#{@offset}\"," +
  " \"length\": \"#{@length}\"," +
  " \"prefix\": \"#{@prefix}\"," +
  " \"refer_name\": \"#{@refer_name}\"," +
  " \"condition_name\": \"#{condition_name}\"," +
  " \"id\": \"p#{@@id}\", " +
  " \"value\": #{@element.json}" +
  "}"
end

#set_options(options) ⇒ Object

set options



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# File 'lib/regextest/front/parenthesis.rb', line 107

def set_options(options)
  reg_options = options[:reg_options]
  TstLog("Parenthesis set_options before: #{reg_options.inspect}, prefix: #{@prefix}");
  if md = @prefix.match(/^([imxdau]*(?:\-[imx]*)?)(:)?$/)
    if md[2]
      # deep copy if (?imx: ) pattern
      cur_options = reg_options.dup
    else
      # replace option if (?imx) pattern
      cur_options = reg_options
    end
    cur_options.modify(md[1])
    TstLog("Parenthesis set_options after: #{cur_options.inspect}, new_regopt: #{md[1]}");
  else
    cur_options = reg_options
  end
  
  new_options = options.dup
  new_options[:reg_options] = cur_options

  @element.set_options(new_options)
  self
end

#set_refer_name(name) ⇒ Object

set unique name for back reference



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# File 'lib/regextest/front/parenthesis.rb', line 91

def set_refer_name(name)
  @refer_name = name
end