Escaped string in C#

[Oxns]

Hi,

Can anyone point me at the class to convert a string so that it displays
escaped chars as \r, \n etc. please

Its done in the 2005 debugger so I hope its available as a class ??.

Thanks

Graham

 

[steve813]

Graham,

Put an @ in front of the string, example:

string myString = @"\r\n";

Steve

 

[csheppard91]

Come to my forum to get help: http://www.wizardsolutionsusa.com

 

[Oxns]

Steve,

Thanks for the vary quick reply .

This is the wrong way round however - I already have my string with embedded
control characters - and simply want to display this - with control chars
'shown as escaped (eg \r\n etc.).

Thanks

G.

 

[Tom Porterfield]

Come to my forum to get help: http://ww

Why would anyone do that when this forum has many experts that really
know their stuff and offer their help willingly day in and day out. Go
fishing elsewhere.

 

[Tom Porterfield]

Steve,

Thanks for the vary quick reply .

This is the wrong way round however - I already have my string with embedded
control characters - and simply want to display this - with control chars
'shown as escaped (eg \r\n etc.).

string s1 = "\r\n";
string s2 = System.Text.RegularExpressions.Regex.Escape(s1);

 

[Peter Rilling]

Are you simply saying that you want to convert the control characters to
"text" that represents the characters.

If so, you might do something like myString.Replace("\r\n", @"\r\n");

 

[Jon Skeet [C# MVP]]

Can anyone point me at the class to convert a string so that it displays
escaped chars as \r, \n etc. please

Its done in the 2005 debugger so I hope its available as a class ??.

Not that I know of, but it's very easy to do. Just run through a series
of replacements;

string replaced = original.Replace ("\\", "\\\\")
.Replace ("\r", "\\r")
.Replace ("\n", "\\n")
.Replace ("\'", "\\\'")
.Replace ("\"", "\\\")

(etc)

See http://www.pobox.com/~skeet/csharp/faq/#escapes for the complete
list.

 

[Oxns]

Effectively yes - but for all escaped characters. I can do this the hard way
but assumed/hoped that there was a framework method somewhere which would do
this for me :-O.

Thanks

G.

 

[Oxns]

Tom,

Yes - I had a look at this but doesn't it only translate regex chars - and
not all string escaped chars ??.

Looks like I'll just do it the hard way - as ever ;-)).

G.

 

[Oxns]

Tom,

My thoughts exactly - hence why I didn't reply ;-)).

G.

 

[Oxns]

Jon,

Yeah - I know, just get fed up doing things the hard way - then finding
thats its a problem already solved in the framework ;-)).

Thanks

G.

 

[Mattias Sjögren]

Can anyone point me at the class to convert a string so that it displays

escaped chars as \r, \n etc. please

Its done in the 2005 debugger so I hope its available as a class ??.

The C# CodeDOM provider does it for you. Try this

static string GetCSharpStringLiteral(string value)
{
ICodeGenerator cg = new CSharpCodeProvider().CreateGenerator();
using (StringWriter sw = new StringWriter())
{
cg.GenerateCodeFromExpression(new CodePrimitiveExpression(value),
sw, new CodeGeneratorOptions());
return sw.ToString();
}
}


Mattias

 

[Oxns]

Mattias,

Thanks for this but V2 Framework tells me this method is obsolete.

Think I'll stick to my own solution of hand-crafted string replacements ;-))
Seems to be simpler than caling CSharpe compiler functions to do a simple
string manipulation :-O.

regards

graham