Eric Hansen
Reputation: 1809
Matching certain string ending in 1(any digit) but not just 1
I'm trying to write a regex in Python to match strings such as rds2, rds5, rds11, but not match the string rds1 or any non rds-followed-by-digits string, e.g. camels2.
My current regex is just
^rds[^1]
however this doesn't match strings which end in 1 followed by another digit. I am not very familiar with regex, but I think I have to use a look-behind assertion to make sure that at the end of the string, if the last character is 1 then the previous character was [0-9]?
I attempted to do so, but have ended up in a mess where the look-behind assertion length seems variable on how many digits the string ends with.
Upvotes: 0
Views: 101
Answers (1)
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