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# use Grammar::Debugger;
unit grammar IRC::Grammar:ver<1.001001>;
token ws { ' ' }
token TOP { [ <message> \r\n ]* }
token message { [':' <prefix> ' '+ ]? <command> <params> }
token prefix { [<servername> | <nick>] [ '!' <user> ]? [ '@' <host> ]? }
token command { <letter>+ | <number>**3 }
token params { ' '+ [ ':' <trailing> | <middle> <params> ]? }
token middle { <-[: \0\r\n]> <-[ \0\r\n]>+ }
token trailing { <-[\0\r\n]>+ }
token target { <to> [ ',' <target> ]? }
token to { <channel> | <user> '@' <servername> | <nick> | <mask> }
token channel { ['#' | '&'] <chstring> }
token servername { \S+ } # see RFC 952 [DNS:4] for details on allowed hostnames
token nick { <letter> [ <letter> | <number> | <special> ]+ }
token mask { <[#$]> <chstring> }
token chstring { <-[ \a\0\r\l,]> }
token user { <-[ \0\r\l]>+ }
token letter { <[a..zA..Z]> }
token number { <[0..9]> }
token special { <[-\[\]\\`^{}]> }
# unit class IRC::Grammar::Actions:ver<1.001001>;
# method TOP ($/) { $/.make: $<message>».made }
# method message ($/) { $/.make:
# prefix => $<prefix> .made,
# command => $<command>.made,
# params => $<params .made,
# }
# method prefix ($/) { [<servername> | <nick>] [ '!' <user> ]? [ '@' <host> ]? }
# method command ($/) { <letter>+ | <number>**3 }
# method params ($/) { ' '+ [ ':' <trailing> | <middle> <params> ]? }
# method middle ($/) { <-[: \0\r\n]> <-[ \0\r\n]>+ }
# method trailing ($/) { <-[\0\r\n]> }
#
# method class ($/) { $/.make: ~$/ }
# method rules ($/) { $/.make: ~$/ }
# method pair ($/) { $/.make: $<class>.made => $<rules>.made }
# method TOP ($/) { $/.make: $<pair>».made }
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