converting a perl split regex to C#

Question

I have an old perl regex defined like this

my @data = split(/^[0-9]{1,3}\)?\t/m, $CLIP->GetText());

C# doesn't like the regex and says Unrecognized escape sequence? How can i fix this?

I tried this in C#

Regex rex = new Regex("/^[0-9]{1,3}\)?\t/m");

Did you type that in literally... you need to use C# constructs... strings, Regex etc. — Jeff Mercado
– Jeff Mercado, Commented Nov 22, 2012 at 0:22
yeah my friend told me it would work... I know little of perl, c# and regex's so i came here for help — pyCthon
– pyCthon, Commented Nov 22, 2012 at 0:24

Brian Rasmussen · Accepted Answer · 2012-11-22 00:38:48Z

2

The problem is \). The easiest way to fix the problem is by changing the string to a verbatim string like this:

Regex rex = new Regex(@"^[0-9]{1,3}\)?\t");

Also, you don't need the slashes and the trailing m in this case.

edited Nov 22, 2012 at 0:38

answered Nov 22, 2012 at 0:30

Brian Rasmussen

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2 Comments

Jeff Mercado Over a year ago

Aren't the starting and ending slashes (and m) not actually part of the regular expression? It looks to me like how it is in javascript.

Brian Rasmussen Over a year ago

@cowboydan The question is tagged with C# 4, so that should not be a problem. However, since this is not essential to the issue, I have removed the use of var.

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