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Posted to regexp-dev@jakarta.apache.org by bu...@apache.org on 2001/11/15 09:37:25 UTC
DO NOT REPLY [Bug 4057] -
\w does not match underscore
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\w does not match underscore
bob_dickinson@hotmail.com changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|\w does not match underscore|\w does not match underscore
------- Additional Comments From bob_dickinson@hotmail.com 2001-11-15 00:37 -------
I also observed this problem. I noticed something else: if I wrap the \w in a
character class by itself (i.e. [\w]) then it does match underscores. I wrote
a test app to verify the observed behavior. The output is provided below:
"\w+" matched target: "a" - matching part was "a"
"\w+" did not match target: "_"
"[\w]+" matched target: "_" - matching part was "_"
"^\w+$" did not match target: "under_score"
"^[\w]+$" matched target: "under_score" - matching part was "under_score"
"^[\w]+$" did not match target: "under#_score"
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