Class: Regexp

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

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.escape(string) ⇒ Object 



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# File 'opal/opal/corelib/regexp.rb', line 4

def self.escape(string)
  `string.replace(/[\\-\\[\\]\\/\\{\\}\\(\\)\\*\\+\\?\\.\\\\\^\\$\\| ]/g, '\\\\$&')`
end

.new(regexp, options = undefined) ⇒ Object 



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# File 'opal/opal/corelib/regexp.rb', line 12

def self.new(regexp, options = undefined)
  `new RegExp(regexp, options)`
end

.union(*parts) ⇒ Object 



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# File 'opal/opal/corelib/regexp.rb', line 8

def self.union(*parts)
  `new RegExp(parts.join(''))`
end

Instance Method Details

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



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# File 'opal/opal/corelib/regexp.rb', line 16

def ==(other)
  `other.constructor == RegExp && self.toString() === other.toString()`
end

#===(str) ⇒ Object 



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# File 'opal/opal/corelib/regexp.rb', line 20

def ===(str)
  if `str._isString == null` && str.respond_to?(:to_str)
    str = str.to_str
  end

  if `str._isString == null`
    return false
  end

  `self.test(str)`
end

#=~(string) ⇒ Object 



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# File 'opal/opal/corelib/regexp.rb', line 32

def =~(string)
  if `string === nil`
    $~ = $` = $' = nil

    return
  end

  string = Opal.coerce_to(string, String, :to_str).to_s

  %x{
    var re = self;

    if (re.global) {
      // should we clear it afterwards too?
      re.lastIndex = 0;
    }
    else {
      // rewrite regular expression to add the global flag to capture pre/post match
      re = new RegExp(re.source, 'g' + (re.multiline ? 'm' : '') + (re.ignoreCase ? 'i' : ''));
    }

    var result = re.exec(string);

    if (result) {
      #{$~ = MatchData.new(`re`, `result`)};
    }
    else {
      #{$~ = $` = $' = nil};
    }

    return result ? result.index : nil;
  }
end

#inspect ⇒ Object 



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# File 'opal/opal/corelib/regexp.rb', line 68

def inspect
  `self.toString()`
end

#match(string, pos = undefined) ⇒ Object 



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# File 'opal/opal/corelib/regexp.rb', line 72

def match(string, pos = undefined)
  if `string === nil`
    $~ = $` = $' = nil

    return
  end

  if `string._isString == null`
    unless string.respond_to? :to_str
      raise TypeError, "no implicit conversion of #{string.class} into String"
    end

    string = string.to_str
  end

  %x{
    var re = self;

    if (re.global) {
      // should we clear it afterwards too?
      re.lastIndex = 0;
    }
    else {
      re = new RegExp(re.source, 'g' + (re.multiline ? 'm' : '') + (re.ignoreCase ? 'i' : ''));
    }

    var result = re.exec(string);

    if (result) {
      return #{$~ = MatchData.new(`re`, `result`)};
    }
    else {
      return #{$~ = $` = $' = nil};
    }
  }
end

#source ⇒ Object Also known as: to_s 



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# File 'opal/opal/corelib/regexp.rb', line 109

def source
  `self.source`
end