c# regexp match

Question

I have the regexp:

\[IN\](\d+)\[/IN\]

Which works fine for:

...[IN]34[/IN]...
...[IN]1[/IN]...
...[IN]12[/IN]...
etc

But it doesn't quite work for decimals, IE:

...[IN]3.5[/IN]...
...[IN]2.8[/IN]...
...[IN]9.4[/IN]...
etc

How do I make it match these as well?

Thanks!

Can there also be exponents (1.4E-3)?

Tim Pietzcker
– Tim Pietzcker

2010-11-10 11:38:51 +00:00
Commented Nov 10, 2010 at 11:38 — Tim Pietzcker
– Tim Pietzcker, Commented Nov 10, 2010 at 11:38

Tim Pietzcker · Accepted Answer · 2010-11-10 12:12:32Z

2

From the top of my head i think it should be this:

[IN](\d+\.?\d*)[/IN]

EDIT: tested and corrected version:

\[IN\](\d+(\.\d+)?)\[\/IN\]

edited Nov 10, 2010 at 12:12

Tim Pietzcker

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answered Nov 10, 2010 at 11:34

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Comments

Michał Niklas · Accepted Answer · 2010-11-10 11:41:18Z

2

It doesn't check if it is valid float (have one decimal dot):

([\d.]+)

edited Nov 10, 2010 at 11:41

answered Nov 10, 2010 at 11:36

Michał Niklas

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Comments

Sachin Shanbhag · Accepted Answer · 2010-11-10 12:00:32Z

2

Try this -

\[IN\]\d+(\.\d+)?\[/IN\]

edited Nov 10, 2010 at 12:00

answered Nov 10, 2010 at 11:36

Sachin Shanbhag

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Comments

Albin Sunnanbo · Accepted Answer · 2010-11-10 12:30:43Z

0

Something like this

[IN](\d+|\d+\.\d+)?[/IN]

This ensures that you have a number after the dot if you have a dot.

edited Nov 10, 2010 at 12:30

answered Nov 10, 2010 at 11:36

Albin Sunnanbo

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