Convert string to unicode representation [duplicate]

Question

Possible Duplicate:
Converting Unicode strings to escaped ascii string

How can I convert ä... into something like \u0131... ?

is there any Function for doing this ?

p.s :

beside this way : [ sorry @Kendall Frey :-)]

char a = 'ä';
string escape = "\\u" + ((int)a).ToString("X").PadLeft(4, '0');

also string.isNullOrEmpty code can be cut and paste , my question is regarding a ready one like string.isNullOrEmpty — Royi Namir
– Royi Namir, Commented Nov 8, 2012 at 14:56
Your answer is "no". There is no built-in function for this. You'll have to use @KendallFrey's solution. — user27414
– user27414, Commented Nov 8, 2012 at 15:00

Kendall Frey · Accepted Answer · 2012-11-08 15:04:54Z

30

Here's a function to convert a char to an escape sequence:

string GetEscapeSequence(char c)
{
    return "\\u" + ((int)c).ToString("X4");
}

It isn't gonna get much better than a one-liner.

And no, there's no built-in function as far as I know.

edited Nov 8, 2012 at 15:04

answered Nov 8, 2012 at 14:57

Kendall Frey

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8 Comments

Jon Skeet Over a year ago

I suspect there's a way of getting the left-padding correct in the format string instead of calling PadLeft though...

user27414 Over a year ago

@JonSkeet -- I believe just changing to ToString("X4") and dropping the PadLeft will do the trick.

user27414 Over a year ago

Fine. But I thought of it first :P

user27414 Over a year ago

Mostly for fun:

var s = "ä";   s = new string(s.SelectMany(c => (int)c > 127 ? ("\\u" + ((int)c).ToString("X4")).ToArray() : new char[] { c }).ToArray());

Robert Synoradzki Over a year ago

2019 edition: string EscapeSequence(char c) => $@"\u{(int)c:X4}";

|

ChruS · Accepted Answer · 2012-11-08 15:04:42Z

9

There is no built-in function AFAIK. Here is one pretty silly solution that works. But Kendall Frey provided much better variant.

string GetUnicodeString(string s)
{
    StringBuilder sb = new StringBuilder();
    foreach (char c in s)
    {
        sb.Append("\\u");
        sb.Append(String.Format("{0:x4}", (int)c));
    }
    return sb.ToString();
}

answered Nov 8, 2012 at 15:04

ChruS

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