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I'm attempting to do a match on the user agent in velocity templates.

$ua does print out but Matches! does not. What am I doing wrong?

#set( $ua = $request.getHeader('User-Agent'))
<p>$ua</p>
#if( $ua.matches('/Windows.(NT|XP|ME|9)/')) 
<p>Matches!</p>
#end
old_adam
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1 Answers1

4

I know this is old, but the solution to this problem is that the regex provided to matches must match the ENTIRE string in order to return true. So, for example:

$ua.matches('Windows.(NT|XP|ME|9)')

returns false, but 

$ua.matches('.*Windows.(NT|XP|ME|9).*')

will behave as you expect, returning true if Windows.(...) is in the string.

This is a bit odd and really stymied me for a while today.

PS - no slashes are required in the regex!

EricTheBiking
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  • Alternatively, string the header req and match together: `#if ( $req.getHeader("User-Agent").matches('.*Trident.*') )` – Underverse Mar 16 '15 at 07:55