CODEWITHSUNDEEP
regexiisurl-rewriting
remarsh
remarsh

Reputation: 658

Regex any uppercase variants of specific string

I'm trying to catch if a specific string thefolder contains any uppercase characters.

http://www.example.com/thefolder = false
http://www.example.com/theDirectory = false
http://www.example.com/theFolder = true
http://www.example.com/ThefolDeR = true
http://www.example.com/THEFOLDER = true

So far I have the below regex but it will also return true for theDirectory, which is not desired.

(?=.*[A-Z]).+

Its important to note it must exclusively match the specific string thefolder as this is for an IIS rewrite which must not effect the rest of the site.

Upvotes: 3

Views: 142

Answers (3)

user557597
user557597

Reputation:

This might work. Uses a lookahead to see if thefolder (length 9) has a
capital letter. If so, it matches.

(?=(?i:thefolder))(?![a-z]{9})(.{9})

Formatted:

 (?=
      (?i: thefolder )
 )
 (?! [a-z]{9} )
 ( .{9} )

In the worst case, there is always permutations (No syntax but class and alternation).
But, this will always result in a large string.

T[hH][eE][fF][oO][lL][dD][eE][rR]|[tT]H[eE][fF][oO][lL][dD][eE][rR]|[tT][hH]E[fF][oO][lL][dD][eE][rR]|[tT][hH][eE]F[oO][lL][dD][eE][rR]|[tT][hH][eE][fF]O[lL][dD][eE][rR]|[tT][hH][eE][fF][oO]L[dD][eE][rR]|[tT][hH][eE][fF][oO][lL]D[eE][rR]|[tT][hH][eE][fF][oO][lL][dD]E[rR]|[tT][hH][eE][fF][oO][lL][dD][eE]R

   T [hH] [eE] [fF] [oO] [lL] [dD] [eE] [rR] 
|  [tT] H [eE] [fF] [oO] [lL] [dD] [eE] [rR] 
|  [tT] [hH] E [fF] [oO] [lL] [dD] [eE] [rR] 
|  [tT] [hH] [eE] F [oO] [lL] [dD] [eE] [rR] 
|  [tT] [hH] [eE] [fF] O [lL] [dD] [eE] [rR] 
|  [tT] [hH] [eE] [fF] [oO] L [dD] [eE] [rR] 
|  [tT] [hH] [eE] [fF] [oO] [lL] D [eE] [rR] 
|  [tT] [hH] [eE] [fF] [oO] [lL] [dD] E [rR] 
|  [tT] [hH] [eE] [fF] [oO] [lL] [dD] [eE] R

Upvotes: 2

imtheman
imtheman

Reputation: 4843

If you are just doing an IIS rewrite, you can just match thefolder and check the Ignore Case check box, then do whatever you need to do.

Try something like this in your rewrite config file:

<rule name="LowerCaseRule1" stopProcessing="true">
   <match url="thefolder" ignoreCase="true" />
   <action type="Rewrite" url="{ToLower:{URL}}" />
</rule>

Update:

It's a bit convoluted, but this regex should do it.

.*(?=.*[A-Z])([tT][hH][eE][fF][oO][lL][dD][eE][rR]).*

Upvotes: 1

Starfish
Starfish

Reputation: 3574

I think this regex is what you are looking for:

^[^A-Z]+$

Here is the example.

This returns:

http://www.example.com/thefolder    = true
http://www.example.com/theDirectory = false
http://www.example.com/theFolder    = false
http://www.example.com/ThefolDeR    = false
http://www.example.com/THEFOLDER    = false

If you want to select the exact opposite you can do this:

^.*[A-Z].*$

Here is the example.

This returns:

http://www.example.com/thefolder    = false
http://www.example.com/theDirectory = true
http://www.example.com/theFolder    = true
http://www.example.com/ThefolDeR    = true
http://www.example.com/THEFOLDER    = true

Upvotes: -1

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