关键词:
USERNAME [a-zA-Z0-9._-]+
USER %USERNAME
INT (?:[+-]?(?:[0-9]+))
BASE10NUM (?<![0-9.+-])(?>[+-]?(?:(?:[0-9]+(?:.[0-9]+)?)|(?:.[0-9]+)))
NUMBER (?:%BASE10NUM)
BASE16NUM (?<![0-9A-Fa-f])(?:[+-]?(?:0x)?(?:[0-9A-Fa-f]+))
BASE16FLOAT (?<![0-9A-Fa-f.])(?:[+-]?(?:0x)?(?:(?:[0-9A-Fa-f]+(?:.[0-9A-Fa-f]*)?)|(?:.[0-9A-Fa-f]+)))
POSINT (?:[1-9][0-9]*)
NONNEGINT (?:[0-9]+)
WORD w+
NOTSPACE S+
SPACE s*
DATA .*?
GREEDYDATA .*
QUOTEDSTRING (?>(?<!\)(?>"(?>\.|[^\"]+)+"|""|(?>‘(?>\.|[^\‘]+)+‘)|‘‘|(?>`(?>\.|[^\`]+)+`)|``))
UUID [A-Fa-f0-9]8-(?:[A-Fa-f0-9]4-)3[A-Fa-f0-9]12
# Networking
MAC (?:%CISCOMAC|%WINDOWSMAC|%COMMONMAC)
CISCOMAC (?:(?:[A-Fa-f0-9]4.)2[A-Fa-f0-9]4)
WINDOWSMAC (?:(?:[A-Fa-f0-9]2-)5[A-Fa-f0-9]2)
COMMONMAC (?:(?:[A-Fa-f0-9]2:)5[A-Fa-f0-9]2)
IPV6 ((([0-9A-Fa-f]1,4:)7([0-9A-Fa-f]1,4|:))|(([0-9A-Fa-f]1,4:)6(:[0-9A-Fa-f]1,4|((25[0-5]|2[0-4]d|1dd|[1-9]?d)(.(25[0-5]|2[0-4]d|1dd|[1-9]?d))3)|:))|(([0-9A-Fa-f]1,4:)5(((:[0-9A-Fa-f]1,4)1,2)|:((25[0-5]|2[0-4]d|1dd|[1-9]?d)(.(25[0-5]|2[0-4]d|1dd|[1-9]?d))3)|:))|(([0-9A-Fa-f]1,4:)4(((:[0-9A-Fa-f]1,4)1,3)|((:[0-9A-Fa-f]1,4)?:((25[0-5]|2[0-4]d|1dd|[1-9]?d)(.(25[0-5]|2[0-4]d|1dd|[1-9]?d))3))|:))|(([0-9A-Fa-f]1,4:)3(((:[0-9A-Fa-f]1,4)1,4)|((:[0-9A-Fa-f]1,4)0,2:((25[0-5]|2[0-4]d|1dd|[1-9]?d)(.(25[0-5]|2[0-4]d|1dd|[1-9]?d))3))|:))|(([0-9A-Fa-f]1,4:)2(((:[0-9A-Fa-f]1,4)1,5)|((:[0-9A-Fa-f]1,4)0,3:((25[0-5]|2[0-4]d|1dd|[1-9]?d)(.(25[0-5]|2[0-4]d|1dd|[1-9]?d))3))|:))|(([0-9A-Fa-f]1,4:)1(((:[0-9A-Fa-f]1,4)1,6)|((:[0-9A-Fa-f]1,4)0,4:((25[0-5]|2[0-4]d|1dd|[1-9]?d)(.(25[0-5]|2[0-4]d|1dd|[1-9]?d))3))|:))|(:(((:[0-9A-Fa-f]1,4)1,7)|((:[0-9A-Fa-f]1,4)0,5:((25[0-5]|2[0-4]d|1dd|[1-9]?d)(.(25[0-5]|2[0-4]d|1dd|[1-9]?d))3))|:)))(%.+)?
IPV4 (?<![0-9])(?:(?:25[0-5]|2[0-4][0-9]|[0-1]?[0-9]1,2)[.](?:25[0-5]|2[0-4][0-9]|[0-1]?[0-9]1,2)[.](?:25[0-5]|2[0-4][0-9]|[0-1]?[0-9]1,2)[.](?:25[0-5]|2[0-4][0-9]|[0-1]?[0-9]1,2))(?![0-9])
IP (?:%IPV6|%IPV4)
HOSTNAME (?:[0-9A-Za-z][0-9A-Za-z-]0,62)(?:.(?:[0-9A-Za-z][0-9A-Za-z-]0,62))*(.?|)
HOST %HOSTNAME
IPORHOST (?:%HOSTNAME|%IP)
HOSTPORT %IPORHOST:%POSINT
# paths
PATH (?:%UNIXPATH|%WINPATH)
UNIXPATH (?>/(?>[w_%[email protected]:.,-]+|\.)*)+
TTY (?:/dev/(pts|tty([pq])?)(w+)?/?(?:[0-9]+))
WINPATH (?>[A-Za-z]+:|\)(?:\[^\?*]*)+
URIPROTO [A-Za-z]+(+[A-Za-z+]+)?
URIHOST %IPORHOST(?::%POSINT:port)?
# uripath comes loosely from RFC1738, but mostly from what Firefox
# doesn‘t turn into %XX
URIPATH (?:/[A-Za-z0-9$.+!*‘(),~:;[email protected]#%_-]*)+
#URIPARAM ?(?:[A-Za-z0-9]+(?:=(?:[^&]*))?(?:&(?:[A-Za-z0-9]+(?:=(?:[^&]*))?)?)*)?
URIPARAM ?[A-Za-z0-9$.+!*‘|(),[email protected]#%&/=:;_?-[]]*
URIPATHPARAM %URIPATH(?:%URIPARAM)?
URI %URIPROTO://(?:%USER(?::[^@]*)[email protected])?(?:%URIHOST)?(?:%URIPATHPARAM)?
# Months: January, Feb, 3, 03, 12, December
MONTH (?:Jan(?:uary)?|Feb(?:ruary)?|Mar(?:ch)?|Apr(?:il)?|May|Jun(?:e)?|Jul(?:y)?|Aug(?:ust)?|Sep(?:tember)?|Oct(?:ober)?|Nov(?:ember)?|Dec(?:ember)?)
MONTHNUM (?:0?[1-9]|1[0-2])
MONTHNUM2 (?:0[1-9]|1[0-2])
MONTHDAY (?:(?:0[1-9])|(?:[12][0-9])|(?:3[01])|[1-9])
# Days: Monday, Tue, Thu, etc...
DAY (?:Mon(?:day)?|Tue(?:sday)?|Wed(?:nesday)?|Thu(?:rsday)?|Fri(?:day)?|Sat(?:urday)?|Sun(?:day)?)
# Years?
YEAR (?>dd)1,2
HOUR (?:2[0123]|[01]?[0-9])
MINUTE (?:[0-5][0-9])
# ‘60‘ is a leap second in most time standards and thus is valid.
SECOND (?:(?:[0-5]?[0-9]|60)(?:[:.,][0-9]+)?)
TIME (?!<[0-9])%HOUR:%MINUTE(?::%SECOND)(?![0-9])
# datestamp is YYYY/MM/DD-HH:MM:SS.UUUU (or something like it)
DATE_US %MONTHNUM[/-]%MONTHDAY[/-]%YEAR
DATE_EU %MONTHDAY[./-]%MONTHNUM[./-]%YEAR
ISO8601_TIMEZONE (?:Z|[+-]%HOUR(?::?%MINUTE))
ISO8601_SECOND (?:%SECOND|60)
TIMESTAMP_ISO8601 %YEAR-%MONTHNUM-%MONTHDAY[T ]%HOUR:?%MINUTE(?::?%SECOND)?%ISO8601_TIMEZONE?
DATE %DATE_US|%DATE_EU
DATESTAMP %DATE[- ]%TIME
TZ (?:[PMCE][SD]T|UTC)
DATESTAMP_RFC822 %DAY %MONTH %MONTHDAY %YEAR %TIME %TZ
DATESTAMP_RFC2822 %DAY, %MONTHDAY %MONTH %YEAR %TIME %ISO8601_TIMEZONE
DATESTAMP_OTHER %DAY %MONTH %MONTHDAY %TIME %TZ %YEAR
DATESTAMP_EVENTLOG %YEAR%MONTHNUM2%MONTHDAY%HOUR%MINUTE%SECOND
# Syslog Dates: Month Day HH:MM:SS
SYSLOGTIMESTAMP %MONTH +%MONTHDAY %TIME
PROG (?:[w._/%-]+)
SYSLOGPROG %PROG:program(?:[%POSINT:pid])?
SYSLOGHOST %IPORHOST
SYSLOGFACILITY <%NONNEGINT:facility.%NONNEGINT:priority>
HTTPDATE %MONTHDAY/%MONTH/%YEAR:%TIME %INT
# Shortcuts
QS %QUOTEDSTRING
# Log formats
SYSLOGBASE %SYSLOGTIMESTAMP:timestamp (?:%SYSLOGFACILITY )?%SYSLOGHOST:logsource %SYSLOGPROG:
COMMONAPACHELOG %IPORHOST:clientip %USER:ident %USER:auth [%HTTPDATE:timestamp] "(?:%WORD:verb %NOTSPACE:request(?: HTTP/%NUMBER:httpversion)?|%DATA:rawrequest)" %NUMBER:response (?:%NUMBER:bytes|-)
COMBINEDAPACHELOG %COMMONAPACHELOG %QS:referrer %QS:agent
# Log Levels
LOGLEVEL ([Aa]lert|ALERT|[Tt]race|TRACE|[Dd]ebug|DEBUG|[Nn]otice|NOTICE|[Ii]nfo|INFO|[Ww]arn?(?:ing)?|WARN?(?:ING)?|[Ee]rr?(?:or)?|ERR?(?:OR)?|[Cc]rit?(?:ical)?|CRIT?(?:ICAL)?|[Ff]atal|FATAL|[Ss]evere|SEVERE|EMERG(?:ENCY)?|[Ee]merg(?:ency)?)
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