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Author	Thread
u-neek Bipolar (III) Inmate From: Berlin, Germany Insane since: Jan 2001	posted 03-31-2006 22:25 ...a regular expression to validate a uri. Any Ideas?
u-neek Bipolar (III) Inmate From: Berlin, Germany Insane since: Jan 2001	posted 04-01-2006 10:50 The first part: code: [a-zA-Z][a-zA-Z0-9\+-\.]* # scheme :\/\/ ((([a-zA-Z0-9][a-zA-Z0-9-][a-zA-Z0-9]\.) # domainlabel [a-zA-Z][a-zA-Z][a-zA-Z0-9-]*[a-zA-Z0-9] # toplabel \.?)\| # additional period ([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+)) # IPv4 address (:[0-9]+)? # port Using this RFC for reference: http://www.ietf.org/rfc/rfc2396.txt Any comments? Could this be done better? (Edited by u-neek on 04-01-2006 10:55)
u-neek Bipolar (III) Inmate From: Berlin, Germany Insane since: Jan 2001	posted 04-01-2006 11:28 Ok, here is the full code: code: [a-zA-Z][a-zA-Z0-9\+-\.]* # scheme :\/\/ # ((([a-zA-Z0-9][a-zA-Z0-9-][a-zA-Z0-9]\.) # domainlabel [a-zA-Z][a-zA-Z0-9-][a-zA-Z0-9] # toplabel \.?)\| # additional period ([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+)) # IPv4 address (:[0-9]+)? # port / # ([a-zA-Z0-9-_\.!~'\(\)] # unreserved \|%[0-9a-fA-F]{2} # escaped \|[:@&=\+\$;])* # (/([a-zA-Z0-9-_\.!~'\(\)] # unreserved \|%[0-9a-fA-F]{2} # escaped \|[:@&=\+\$;]))* # (\? # query: ([;\/\?:@&=\+\$,] # reserved \|[a-zA-Z0-9-_\.!~'\(\)] # unreserved \|%[0-9a-fA-F]{2}))* # escaped Fixed a bug in the toplabel part. Relative URIs are missing. Comments? (Edited by u-neek on 04-01-2006 11:31)
u-neek Bipolar (III) Inmate From: Berlin, Germany Insane since: Jan 2001	posted 04-01-2006 12:59 Fixed some bugs, cleaned and added userinfo: code: [a-zA-Z][a-zA-Z\d\+\-\.]:\/\/ # scheme + :// (([\w\-\.!~'\\(\);:&=\+\$,]\|%[\da-fA-F]{2})+@)?# userinfo ((([a-zA-Z\d][a-zA-Z\d\-][a-zA-Z\d]\.) # domainlabel [a-zA-Z][a-zA-Z\d\-][a-zA-Z\d]\.?) # toplabel \|([\d]+\.[\d]+\.[\d]+\.[\d]+)) # IPv4 address (:[\d]+)? # port / # path: ([\w\-\.!~\'\(\):@&=\+\$;] # unreserved \|%[\da-fA-F]{2})* # escaped (/([\w\-\.!~\'\(\):@&=\+\$;] # unreserved \|%[\da-fA-F]{2}))* # escaped (\? # query: ([;\/\?:@&=\+\$,] # reserved \|[\w\-\.!~\'\(\)] # unreserved \|%[\da-fA-F]{2}))* # escaped (Edited by u-neek on 04-01-2006 13:02)
DmS Maniac (V) Inmate From: Sthlm, Sweden Insane since: Oct 2000	posted 04-01-2006 22:54 Someone once said: "Hey, I can solve this problem with regular expressions!" This man now has two problems... /D {cell 260} {Blog} -{"Theories without facts are just religions...?}-

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Author

Thread

u-neek
Bipolar (III) Inmate

From: Berlin, Germany
Insane since: Jan 2001

posted 03-31-2006 22:25

...a regular expression to validate a uri.

Any Ideas?

u-neek
Bipolar (III) Inmate

From: Berlin, Germany
Insane since: Jan 2001

posted 04-01-2006 10:50

The first part:

code:

[a-zA-Z][a-zA-Z0-9\+-\.]*			# scheme
:\/\/
((([a-zA-Z0-9][a-zA-Z0-9-]*[a-zA-Z0-9]\.)*	# domainlabel
[a-zA-Z][a-zA-Z][a-zA-Z0-9-]*[a-zA-Z0-9]	# toplabel
\.?)|						# additional period
([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+))		# IPv4 address
(:[0-9]+)?					# port

Using this RFC for reference: http://www.ietf.org/rfc/rfc2396.txt

Any comments? Could this be done better?

(Edited by u-neek on 04-01-2006 10:55)

u-neek
Bipolar (III) Inmate

From: Berlin, Germany
Insane since: Jan 2001

posted 04-01-2006 11:28

Ok, here is the full code:

code:

[a-zA-Z][a-zA-Z0-9\+-\.]*			# scheme
:\/\/						#
((([a-zA-Z0-9][a-zA-Z0-9-]*[a-zA-Z0-9]\.)*	# domainlabel
[a-zA-Z][a-zA-Z0-9-]*[a-zA-Z0-9]		# toplabel
\.?)|						# additional period
([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+))		# IPv4 address
(:[0-9]+)?					# port
/						#
([a-zA-Z0-9-_\.!~*'\(\)]			# unreserved
|%[0-9a-fA-F]{2}				# escaped
|[:@&=\+\$;])*					#
(/([a-zA-Z0-9-_\.!~*'\(\)]			# unreserved
|%[0-9a-fA-F]{2}				# escaped
|[:@&=\+\$;])*)*				#
(\?						# query:
([;\/\?:@&=\+\$,]				# reserved
|[a-zA-Z0-9-_\.!~*'\(\)]			# unreserved
|%[0-9a-fA-F]{2})*)*				# escaped

Fixed a bug in the toplabel part.

Relative URIs are missing.

Comments?

(Edited by u-neek on 04-01-2006 11:31)

u-neek
Bipolar (III) Inmate

From: Berlin, Germany
Insane since: Jan 2001

posted 04-01-2006 12:59

Fixed some bugs, cleaned and added userinfo:

code:

[a-zA-Z][a-zA-Z\d\+\-\.]*:\/\/			# scheme + ://
(([\w\-\.!~'\*\(\);:&=\+\$,]|%[\da-fA-F]{2})+@)?# userinfo
((([a-zA-Z\d][a-zA-Z\d\-]*[a-zA-Z\d]\.)*	# domainlabel
[a-zA-Z][a-zA-Z\d\-]*[a-zA-Z\d]\.?)		# toplabel
|([\d]+\.[\d]+\.[\d]+\.[\d]+))			# IPv4 address
(:[\d]+)?					# port
/						# path:
([\w\-\.!~\*'\(\):@&=\+\$;]			# unreserved
|%[\da-fA-F]{2})*				# escaped
(/([\w\-\.!~\*'\(\):@&=\+\$;]			# unreserved
|%[\da-fA-F]{2})*)*				# escaped
(\?						# query:
([;\/\?:@&=\+\$,]				# reserved
|[\w\-\.!~\*'\(\)]				# unreserved
|%[\da-fA-F]{2})*)*				# escaped

(Edited by u-neek on 04-01-2006 13:02)

DmS
Maniac (V) Inmate

From: Sthlm, Sweden
Insane since: Oct 2000

posted 04-01-2006 22:54

Someone once said: "Hey, I can solve this problem with regular expressions!" This man now has two problems...

/D

{cell 260} {Blog}
-{"Theories without facts are just religions...?}-