Article Discussion: The Complete Regular Expression Guide

The Complete Regular Expression Guide If you have any questions or comments about this article then please post them here.

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I put brain into gear and realised this post was a load of crap

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I think it's important to note that the . or full stop meta character will NOT match a newline character (\r\n|\r|\n) in javascript.

So, the statement made by the author that it matches ANY character is false. This is easily seen in this exampleTo fix this, we'd need thisSince you really don't want to put the full stop into a character class, we just use am alternative group instead.

Otherwise, a fantastic article on regex

Also, Albie. *\.[ch]pp DOES match only cpp or hpp. Remember, those brackets create a character class inside which ANY charater listed is valid. In this case, a c or an h, which makes this identical to your *\.(c|h)pp

However, I would prefer to use *\.[ch]pp because (1) It does not create a remembered match and thus consume a backreference and (2) to make it NOT a remebered match consuming a backreference requires *\.(?:c|h)pp which is three more characters than *\.[ch]pp and let's face it, we all want to keep our regexs as short as possible