Re: More regular expression woes

Brad,

Try this:
public static Regex regex = new Regex(
@"\b\d{7}\b|\b\d{8}\b",
RegexOptions.IgnoreCase
| RegexOptions.CultureInvariant
| RegexOptions.IgnorePatternWhitespace
| RegexOptions.Compiled
);

Do not let the \b expressions throw you. Additionally, you may want to
download Expresso from http://www.ultrapico.com/. It is the best regex
tutorial/utility I have found over the years.
--------------------
From: "Brad Prendergast" <format('bradp%sbpsoftware.com',['@'])>
Subject: Re: More regular expression woes
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Mark Rae <mark@xxxxxxxxxxxxxxxxx> wrote in message
<ud4wgxvQHHA.4744@xxxxxxxxxxxxxxxxxxxx>:

Hi,

This time, I'm looking for a regular expression which says "the
string must contain exactly seven or exactly eight digits" e.g.

123456 fails
1234567 passes
12345678 passes
123456789 fails

I've tried this:

\d{7,8}

but that allows 123456789 to pass, presumably because it contains a
string of seven or eight digits...

Is there any way to specifiy a fixed length to validate?

Any assistance gratefully received.

Mark

Regex r;
r = new Regex("^\\d{7,8}$");

--
Brad Prendergast
"There's a fine line between genius and insanity. I have erased this
line." -- Oscar Levant (1906 - 1972)


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.

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