CODEWITHSUNDEEP
regexregex-lookarounds
general exception
general exception

Reputation: 4332

Regex negative lookahead

I need to modify this regex

href=\"(.*)\"

which matches this...

href="./pothole_locator_map.aspx?lang=en-gb&lat=53.153977&lng=-3.533306"

To NOT match this...

href="./pothole_locator_map.aspx?lang=en-gb&lat=53.153977&lng=-3.533306&returnurl=AbandonedVehicles.aspx"

Tried this, but with no luck

href=\"(.*)\"(?!&returnurl=AbandonedVehicles.aspx)

Any help would be much appreciated.

Thanks, Al.

Upvotes: 5

Views: 879

Answers (2)

SilentGhost
SilentGhost

Reputation: 319601

href="(?!.*returnurl=AbandonedVehicles\.aspx)(.*)"

Upvotes: 3

kennytm
kennytm

Reputation: 523294

Lookaheads should be placed before the string is consumed by matching, i.e.

href=\"(?!.*&returnurl=AbandonedVehicles\.aspx)(.*)\"

Upvotes: 9

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