How do I write a regular expression that will match all words starting with I except the word Integer?
Example:
t1: Integer;
t2: Interface;
t3: IXml;
The result should be Interface and IXml.
views:
84answers:
3… although Pedro, unfortunately, did not specify which flavor of regex he has. Not all regex libraries support negative lookahead.
Christopher Creutzig
2010-07-21 14:56:16
You should remove the \w because it doesn't match de semicolumn ; given in examples.
M42
2010-07-21 14:56:55
@M42: the semicolon was not meant to be matched.
SilentGhost
2010-07-21 15:02:47
@Chris: http://www.regular-expressions.info/refflavors.html any modern language supports negative look-ahead. Besides, it's not the reason to devalue my answer, and rather a reason to ask OP for clarifications.
SilentGhost
2010-07-21 15:04:31
@SilentGhost: Sorry, you're right, I misunderstood
M42
2010-07-21 15:16:40
@SilentGhost: I didn't downvote your answer, I had in fact upvoted it.
Christopher Creutzig
2010-07-22 11:10:50
@Christopher: I never said you did. Thanks for the upvote, though.
SilentGhost
2010-07-22 11:12:30
+1
A:
If you can’t use a look-ahead assertion as SilentGhost suggested, you can express the same using basic regular expression syntax:
I(\b|[A-Za-mo-z][A-Za-z]*|n(\b|[A-Za-su-z][A-Za-z]*|t(\b|[A-Za-df-z][A-Za-z]*|e(\b|[A-Za-fh-z][A-Za-z]*|g(\b|[A-Za-df-z][A-Za-z]*|e(\b|[A-Za-qs-z][A-Za-z]*|r[A-Za-z]+))))))
Gumbo
2010-07-21 15:02:18