Class: MatchData

Inherits:
Object show all
Defined in:
opal/opal/corelib/regexp.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(regexp, match_groups) ⇒ MatchData

Returns a new instance of MatchData


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# File 'opal/opal/corelib/regexp.rb', line 210

def initialize(regexp, match_groups)
  $~          = self
  @regexp     = regexp
  @begin      = `match_groups.index`
  @string     = `match_groups.input`
  @pre_match  = `match_groups.input.slice(0, match_groups.index)`
  @post_match = `match_groups.input.slice(match_groups.index + match_groups[0].length)`
  @matches    = []

  %x{
    for (var i = 0, length = match_groups.length; i < length; i++) {
      var group = match_groups[i];

      if (group == null) {
        #@matches.push(nil);
      }
      else {
        #@matches.push(group);
      }
    }
  }
end

Instance Attribute Details

#post_matchObject (readonly)

Returns the value of attribute post_match


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# File 'opal/opal/corelib/regexp.rb', line 208

def post_match
  @post_match
end

#pre_matchObject (readonly)

Returns the value of attribute pre_match


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# File 'opal/opal/corelib/regexp.rb', line 208

def pre_match
  @pre_match
end

#regexpObject (readonly)

Returns the value of attribute regexp


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# File 'opal/opal/corelib/regexp.rb', line 208

def regexp
  @regexp
end

#stringObject (readonly)

Returns the value of attribute string


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# File 'opal/opal/corelib/regexp.rb', line 208

def string
  @string
end

Instance Method Details

#==(other) ⇒ Object Also known as: eql?


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# File 'opal/opal/corelib/regexp.rb', line 246

def ==(other)
  return false unless MatchData === other

  `self.string == other.string` &&
  `self.regexp.toString() == other.regexp.toString()` &&
  `self.pre_match == other.pre_match` &&
  `self.post_match == other.post_match` &&
  `self.begin == other.begin`
end

#[](*args) ⇒ Object


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# File 'opal/opal/corelib/regexp.rb', line 233

def [](*args)
  @matches[*args]
end

#begin(n) ⇒ Object


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# File 'opal/opal/corelib/regexp.rb', line 258

def begin(n)
  %x{
    if (n !== 0) {
      #{raise ArgumentError, 'MatchData#begin only supports 0th element'}
    }
    return self.begin;
  }
end

#capturesObject


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# File 'opal/opal/corelib/regexp.rb', line 276

def captures
  `#@matches.slice(1)`
end

#end(n) ⇒ Object


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# File 'opal/opal/corelib/regexp.rb', line 267

def end(n)
  %x{
    if (n !== 0) {
      #{raise ArgumentError, 'MatchData#end only supports 0th element'}
    }
    return self.begin + self.matches[n].length;
  }
end

#inspectObject


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# File 'opal/opal/corelib/regexp.rb', line 280

def inspect
  %x{
    var str = "#<MatchData " + #{`#@matches[0]`.inspect};

    for (var i = 1, length = #@matches.length; i < length; i++) {
      str += " " + i + ":" + #{`#@matches[i]`.inspect};
    }

    return str + ">";
  }
end

#lengthObject Also known as: size


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# File 'opal/opal/corelib/regexp.rb', line 292

def length
  `#@matches.length`
end

#offset(n) ⇒ Object


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# File 'opal/opal/corelib/regexp.rb', line 237

def offset(n)
  %x{
    if (n !== 0) {
      #{raise ArgumentError, 'MatchData#offset only supports 0th element'}
    }
    return [self.begin, self.begin + self.matches[n].length];
  }
end

#to_aObject


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# File 'opal/opal/corelib/regexp.rb', line 298

def to_a
  @matches
end

#to_sObject


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# File 'opal/opal/corelib/regexp.rb', line 302

def to_s
  `#@matches[0]`
end

#values_at(*args) ⇒ Object


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# File 'opal/opal/corelib/regexp.rb', line 306

def values_at(*args)
  %x{
    var i, a, index, values = [];

    for (i = 0; i < args.length; i++) {

      if (args[i].$$is_range) {
        a = #{`args[i]`.to_a};
        a.unshift(i, 1);
        Array.prototype.splice.apply(args, a);
      }

      index = #{Opal.coerce_to!(`args[i]`, Integer, :to_int)};

      if (index < 0) {
        index += #@matches.length;
        if (index < 0) {
          values.push(nil);
          continue;
        }
      }

      values.push(#@matches[index]);
    }

    return values;
  }
end