Class: Regexp

Inherits:

Object

• Object
• Regexp

show all

Defined in:

/home/apoc/projects/ruby/rbot/lib/rbot/messagemapper.rb,
/home/apoc/projects/ruby/rbot/lib/rbot/core/utils/extends.rb,
/home/apoc/projects/ruby/rbot/lib/rbot/irc.rb

Overview

Defined Under Namespace

Modules: Irc

Constant Summary

IN_ON =

/in|on/

DIGITS =

We start with some general-purpose ones which will be used in the Irc module too, but are useful regardless

/\d+/

HEX_DIGIT =

/[0-9A-Fa-f]/

HEX_DIGITS =

/#{HEX_DIGIT}+/

HEX_OCTET =

/#{HEX_DIGIT}#{HEX_DIGIT}?/

DEC_OCTET =

/[01]?\d?\d|2[0-4]\d|25[0-5]/

DEC_IP_ADDR =

/#{DEC_OCTET}\.#{DEC_OCTET}\.#{DEC_OCTET}\.#{DEC_OCTET}/

HEX_IP_ADDR =

/#{HEX_OCTET}\.#{HEX_OCTET}\.#{HEX_OCTET}\.#{HEX_OCTET}/

IP_ADDR =

/#{DEC_IP_ADDR}|#{HEX_IP_ADDR}/

HEX_16BIT =

IPv6, from Resolv::IPv6, without the A..z anchors

/#{HEX_DIGIT}{1,4}/

IP6_8Hex =

/(?:#{HEX_16BIT}:){7}#{HEX_16BIT}/

IP6_CompressedHex =

/((?:#{HEX_16BIT}(?::#{HEX_16BIT})*)?)::((?:#{HEX_16BIT}(?::#{HEX_16BIT})*)?)/

IP6_6Hex4Dec =

/((?:#{HEX_16BIT}:){6,6})#{DEC_IP_ADDR}/

IP6_CompressedHex4Dec =

/((?:#{HEX_16BIT}(?::#{HEX_16BIT})*)?)::((?:#{HEX_16BIT}:)*)#{DEC_IP_ADDR}/

IP6_ADDR =

/(?:#{IP6_8Hex})|(?:#{IP6_CompressedHex})|(?:#{IP6_6Hex4Dec})|(?:#{IP6_CompressedHex4Dec})/

Class Method Summary (collapse)

• + (Object) new_list(reg, pfx = "")

  A method to build a regexp that matches a list of something separated by optional commas and/or the word “and”, an optionally repeated prefix, and whitespace.

Instance Method Summary (collapse)

• - (Boolean) has_captures?

  a Regexp has captures when its source has open parenthesis which are preceded by an even number of slashes and not followed by a question mark.

• - (Object) mm_cleanup

  The MessageMapper cleanup method: does both remove_capture and remove_head_tail.

• - (Object) remove_captures

  We may want to remove captures.

• - (Object) remove_head_tail

  We may want to remove head and tail anchors.

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# File '/home/apoc/projects/ruby/rbot/lib/rbot/core/utils/extends.rb', line 393

def Regexp.new_list(reg, pfx = "")
  if pfx.kind_of?(String) and pfx.empty?
    return %r(#{reg}(?:,?(?:\s+and)?\s+#{reg})*)
  else
    return %r(#{reg}(?:,?(?:\s+and)?(?:\s+#{pfx})?\s+#{reg})*)
  end
end

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# File '/home/apoc/projects/ruby/rbot/lib/rbot/messagemapper.rb', line 7

def has_captures?
  self.source.match(/(?:^|[^\\])(?:\\\\)*\([^?]/)
end

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# File '/home/apoc/projects/ruby/rbot/lib/rbot/messagemapper.rb', line 27

def mm_cleanup
  new = self.source.gsub(/(^|[^\\])((?:\\\\)*)\(([^?])/) {
    "%s%s(?:%s" % [$1, $2, $3]
  }.sub(/^\^/,'').sub(/\$$/,'')
  Regexp.new(new, self.options)
end

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# File '/home/apoc/projects/ruby/rbot/lib/rbot/messagemapper.rb', line 12

def remove_captures
  new = self.source.gsub(/(^|[^\\])((?:\\\\)*)\(([^?])/) {
    "%s%s(?:%s" % [$1, $2, $3]
  }
  Regexp.new(new, self.options)
end

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# File '/home/apoc/projects/ruby/rbot/lib/rbot/messagemapper.rb', line 20

def remove_head_tail
  new = self.source.sub(/^\^/,'').sub(/\$$/,'')
  Regexp.new(new, self.options)
end