Regular Expressions Board

[Ray.R]

I am stuck trying to create a single regular expression that will support two variations of a command...

What I have so far is:  ([^(0-9)]+|[a-zA-Z]+)([0-9]|[^[0-9]+(\.[0-9]{1,2})?$]|[\s]+)

One command supports multiple parameters.  The arguments look like this:

DBL[1] 2.5

VCC 2.35

The regular expression needs to breakdown the above into the following:

submatch1:  DBL[

submatch2:  1

aftermatch:   2.5

This works!

The next one does not:

submatch1:   VCC

submatch 2:  2

aftermatch:   .35

I wanted:

submatch1:   VCC

submatch 2:  \s

aftermatch:   2.35

I am not sure this can be done within a single regEx... I can get one or the other command expression to work, but not both..  😞

I may implement separate expressions..

[Darin.K]

(\D+)(?:\[?([^\]]+)])?\s

[Ray.R]

Wow!!  Thanks Darin!

The Stig to the rescue! 

An impressively small regEx that does the trick! 

🙂

ASIDE NOTE:  My wife & I started watching Top Gear.  Those guys are funny.  Excellent show.

[LV_Pro]

British or American version?

[Ray.R]

There's an American version??!!??  😮

[Intaris]

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@Ray.R wrote:

There's an American version??!!??  😮

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Shh.  We don't talk about that one.....

[Thoric]

I once saw the American version on BBC iPlayer here in the UK. Sorry guys, but it really doesn't compare.

Although I do like some of those muscle cars you guys are particularly good at building 🙂

[Thoric]

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@Darin.K wrote:

(\D+)(?:\[?([^\]]+)])?\s

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Regular expressions still scare the hell outta me. This really means nothing I can understand, it's like hieroglyphics! Maybe one day I'll get my teeth into them properly - they look incredibly powerful!

[JÞB]

Just to see how big my eyes get when some of you get ahold of this and manage it with about 2 keystrokes.

That is of course suposed to say "Valid MAC Address?"

[DavidU]

Hello,

I've been trying to get my head around regex but I'm stuck. Any help would be greatly appreciated.

I'm reading in a file as string. The string consists of blocks of data separated by markers, unfortunately not all data blocks were complete, so I have to search through the string to find complete blocks

A data block starts with "<-->"

A data block ends with "<xx>"

I want to find the first complete block in the string. So in the example below I want to return:

<-->

q

-w

e

r

<xx>

and I want it to ignore the incomplete block

<-->

a

s

d

As a bonus, if I could have every complete data block returned, that would be fantastic.

Thanks

David