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Gustav - 29 Mar 2006 11:36 GMT

Hi!

I want to create a regex (using C#) that split a String where a +: or '
character is found except if the specified character is preceeded by a ?. The
? act as a do not split here sign.

Can anyone give me a hint how to create this regex.

regards / gustav

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Kevin Spencer - 29 Mar 2006 13:39 GMT

((?<!\?)\+)|((?<!\?)')

This regular expression looks for either of 2 possible matches: + or '.

It uses a negative lookbehind to assert that the character is not preceded
by a ?.

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HTH,

Kevin Spencer
Microsoft MVP
Professional Numbskull

Show me your certification without works,
and I'll show my certification
*by* my works.

> Hi!
>
[quoted text clipped - 6 lines]
>
> regards / gustav

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Gustav - 29 Mar 2006 14:46 GMT

Thanks alot!
solved it myself this way (?<!\?)('|\+|:)

> ((?<!\?)\+)|((?<!\?)')
>
[quoted text clipped - 13 lines]
> >
> > regards / gustav

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Kevin Spencer - 29 Mar 2006 18:15 GMT

Hi Gustav,

Yes, I didn't take the time necessary to optimize it well. But your solution
prompted me to come up with an even better one:

(?<!\?)['\+\:]

Rather than Or'ing the values together, put them into a character class.

Didn't notice the colon in the original list!

Signature

HTH,

Kevin Spencer
Microsoft MVP
Professional Numbskull

Show me your certification without works,
and I'll show my certification
*by* my works.

> Thanks alot!
> solved it myself this way (?<!\?)('|\+|:)
[quoted text clipped - 18 lines]
>> >
>> > regards / gustav

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