Get specific text from textbox using regexp

Question

I'm looking for a regex in C#.net to extract printers from a list in a script.

This is an example:

@set nr=2
@if not exist "%userprofile%\Version%nr%.txt" goto reload
@goto koppla
:reload
@echo skrivare>"%userprofile%\Version%nr%.txt"
@del "%userprofile%\zxy-*.txt"
@call skrivare.cmd
@exit
:koppla
@%connect1% \\%Print2%\Lund-M1
@%connect2% \\%Print2%\MAR-M1
@%connect2% \\%Print2%\MAR-M2

I would like to get the names (Lund-M1, MAR-M1, MAR-M2) of the printers in a array to foreach.

I really appreciate any help on this, my mind doesn't work with Regex.

Thank you in advance!

Ian · Accepted Answer · 2014-11-06 13:06:09Z

1

You could do something quite simple, like searching for the Print2 prefix:

\\\\%Print2%\\(.*)

This gives the following output on http://www.regexer.com. You'd then need to access the first group of each Match object to grab the part of the string you are after.

enter image description here

Edit

If you want to encapsulate different print numbers use the following which allows the 2 to be exchanged with any other number.

\\\\%Print[0-9]%\\(.*)

edited Nov 6, 2014 at 13:06

answered Nov 6, 2014 at 12:55

Ian

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2 Comments

Andreas Over a year ago

Fantastic! Thank you so much! I forgot to say that in the same script, there could be like @%connect2% \\%Print1%\SAR-P2 also, %Print1% is the difference. Should I do another expression for that or is there a way to implement it in the same search?

Ian Over a year ago

@Andreas: I've added an extra bit at the end to show how you can exchange the number to any other number.

spender · Accepted Answer · 2014-11-06 13:11:32Z

1

(?m:(?<=^@\%connect\d\% \\\\(.*?\\)*)[^\\]+$)

will give three matches over your script, with values

Lund-M1
MAR-M1
MAR-M2

So

Regex.Matches(input, @"(?m:(?<=^@\%connect\d\% \\\\(.*?\\)*)[^\\]+$)")
     .Cast<Match>()
     .Select(m => m.Value)
     .ToArray()

gives you what you need.

This checks for line starting @%connect then any digit followed by % then pulls the last segment of any path of the form \\something\something\something\AnyNonBackslashChars

edited Nov 6, 2014 at 13:11

answered Nov 6, 2014 at 12:59

spender

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Comments

Alex K. · Accepted Answer · 2014-11-06 13:11:47Z

1

foreach (Match match in Regex.Matches(text, 
    @"^@%connect\d+%\s+\\\\%Print2%\\(.*?)\s*$", RegexOptions.IgnoreCase | RegexOptions.Multiline))
{
    if (match.Success)
    {
        var name = match.Groups[1];
    }
}

answered Nov 6, 2014 at 13:11

Alex K.

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