Regular Expression

[csonx_p]

Am very new on this, but will ask questions to confirm what am learning

example ..

1. [abc] does this mean a or b or c, or does it mean definitely abc .. Here's an example

ez*.[ch]pp would this match anything starting with ez with an extension chpp or cpp/hpp?

that's my first question

[tabstop]

Your faith that C++ people would know something -- anything -- about regular expressions is touching.

Anyway, if you wanted to match "abc", you'd just type "abc" so obviously the brackets mean something. In all regexes that I know of, [abc] means one (and exactly one) of the elements in the brackets.

[master5001]

Your faith that C++ people would know something -- anything -- about regular expressions is touching.
the brackets.

Hahah! You made have brought a smile to my face, tabstop.

[tabstop]

Oh, and you can google "regular expressions" and find just all sorts of tutorials etc.

[csonx_p]

Hahah! You made have brought a smile to my face, tabstop.

He's very touchy with his touching remarks, am touched! ...

Here's the next one, i just made this up so could be completely out of the way

"^(0[1234])+1[\s]([\d]{3}[\s]([\d]{4})$"

// I aim to match a number such as "011 234 5678"

011 = ^(0[1234])+1   // can also be 021/031/041

 234 = [\s]([\d]{3}     // notice a space infront

 5678 = [\s]([\d]{4})$

Please am not trying test your knowledge, am desperate ... thanx

[csonx_p]

Oh, and you can google "regular expressions" and find just all sorts of tutorials etc.

Yes, but then one needs a bit of a test after reading!!!

[tabstop]

The 0[1234] can be repeated, so 01011 234 5678 also matches. If that's what you want, then hey.

Edit: And upon re-review, I think you're missing a parenthesis that I automatically fixed when I read it.

[Fordy]

Moved to Tech as this is better suited for RegEx stuff

[dwks]

[\s]([\d]{4})$

There's no need to surround single characters (or escape sequences) with square brackets; this does exactly the same thing.

\s(\d{4})$

(Although I think the curly-brace-repetition is not part of the POSIX regular expression standard. It may be part of extended POSIX regex, though, and it's definitely in Perl.)