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Answer 1

+1 A:

Try this:

/\.h$|\.c$|\.cpp$/

You can also write it like this:

/\.(h|c|cpp)$/

Mark Byers 2010-05-23 22:01:51

Answer 2

+3 A:

Try:

\.(h|c(pp)?)$

But do you really need a regex? Where are you using this?

Matthew Flaschen 2010-05-23 22:02:40

You actually save 1 character by explicitly including "cpp" and it's slightly easier to read! I'd probably have done the same thing though, just because it's cooler.

Mark 2010-05-23 22:06:32

@Mark, true, but consider what happens if c++ and cxx are added. ;)

Matthew Flaschen 2010-05-23 22:09:45

Would this be cool enough? `\.(?:h|c(?:([px+])\1)?)$`

Amarghosh 2010-05-24 05:22:51

Yes, but it's still 3 more than `\.(h|c(pp|xx|\+\+)?)$`, @Amarghosh :)

Matthew Flaschen 2010-05-24 05:39:09

May be, but mine looks more cool (read obfuscated/hard to read) ;)

Amarghosh 2010-05-24 05:54:28

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Need a regex for .h or .cpp

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