Regular Expressions 101

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Library entries

11
javascript

US Currency Format

no description available
Submitted by anonymous - 6 years ago
13
javascript

us postal/zip

no description available
Submitted by jay johnson - 8 years ago
14
javascript

Hashtag

The secret of the Twitterverse.
Submitted by Joogl - 8 years ago
14
javascript

Email (RFC2822)

Email address compliant with RFC2822
Submitted by Jago - 7 years ago
16
javascript

http url regex

general purpose HTTP URL regex
Submitted by Miguel Castillo @manchagnu - 7 years ago
30
javascript

Email address (most used)

Email address, most used cases
Submitted by Jago - 7 years ago
33
javascript

IP Address validator

Validates IPv4 IP Address
Submitted by krzysp - 7 years ago
103
javascript

trim

trim string
Submitted by fp - 9 years ago

Distinguish torrent files (series vs movies)

Vote

81

Regular Expression
python

"
^ # get the title of this movie or series (?P<title> [-\w'"]+ # match separator to later replace into correct title (?P<separator> [ .] ) # note this *must* be lazy for the engine to work ltr not rtl (?: [-\w'"]+\2 )*? ) # start of movie vs serie check (?: # if this is an episode, lets match the season # number one way or another. if not, the year # of the movie (?: # series. can be a lot prettier if we used perl regex... # make sure this is not just a number in the title followed by our separator. # like, iron man 3 2013 or my.fictional.24.series (?! \d+ \2 ) # now try to match the season number (?: s (?: eason \2? )? )? (?P<season> \d\d? ) # needed to validate the last token is a dot, or whatever. (?: e\d\d? (?:-e?\d\d?)? | x\d\d? )? | # this is likely a movie, match the year (?P<year> [(\]]?\d{4}[)\]]? ) ) # make sure this ends with the separator, otherwise we # might be in the middle of something like "1080p" (?=\2) | # if we get here, this is likely still a movie. # match until one of the keywords (?= BOXSET | XVID | DIVX | LIMITED | UNRATED | PROPER | DTS | AC3 | AAC | BLU[ -]?RAY | HD(?:TV|DVD) | (?:DVD|B[DR]|WEB)RIP | \d+p | [hx]\.?264 ) )
"
gimx

Description

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Submitted by Firas Dib - 8 years ago