diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/rbot/core/utils/extends.rb | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/lib/rbot/core/utils/extends.rb b/lib/rbot/core/utils/extends.rb index 63aab7f0..1f330269 100644 --- a/lib/rbot/core/utils/extends.rb +++ b/lib/rbot/core/utils/extends.rb @@ -66,4 +66,46 @@ class ::String end end +# Extensions to the Regexp class, with some commonly used regular expressions. +# +module ::Rx + + + # We start with some IRC related regular expressions, used to match + # Irc::User nicks and Irc::Channel names + # + # For each of them we define three versions of the regular expression: + # * a generic one, which should match for any server but may turn out to match + # more than a specific server would accept + # * an RFC-compliant matcher + # * TODO a server-specific one that uses the Irc::Server#supports method to build + # a matcher valid for a particular server. + # + module Irc + CHAN_FIRST = /[#&+]/ + CHAN_SAFE = /![A-Z0-9]{5}/ + CHAN_ANY = /[^\x00\x07\x0A\x0D ,:]/ + GENERIC_CHAN = /(?:#{CHAN_FIRST}|#{CHAN_SAFE})#{CHAN_ANY}+/ + RFC_CHAN = /#{CHAN_FIRST}#{CHAN_ANY}{1,49}|#{CHAN_SAFE}#{CHAN_ANY}{1,44}/ + + SPECIAL_CHAR = /[\x5b-\x60\x7b-\x7d]/ + NICK_FIRST = /#{SPECIAL_CHAR}|[[:alpha:]]/ + NICK_ANY = /#{SPECIAL_CHAR}|[[:alnum:]]|-/ + GENERIC_NICK = /#{NICK_FIRST}#{NICK_ANY}+/ + RFC_NICK = /#{NICK_FIRST}#{NICK_ANY}{0,8}/ + end + + + # Next, some general purpose ones + DIGITS = /[0-9]+/ + HEX_DIGIT = /[0-9A-Za-z]/ + HEX_DIGITS = /#{HEX_DIGIT}+/ + HEX_OCTET = /#{HEX_DIGIT}#{HEX_DIGIT}?/ + DEC_OCTET = /[01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5]/ + DEC_IP = /#{DEC_OCTET}.#{DEC_OCTET}.#{DEC_OCTET}/ + HEX_IP = /#{HEX_OCTET}.#{HEX_OCTET}.#{HEX_OCTET}/ + IP = /#{DEC_IP}|#{HEX_IP}/ + +end + |