Question

It’s easy so declare a raw string

String raw = @'\"Hello\"';

But how can I convert a existing string to a raw string ?
This can come with file reading or ajax call : I want read the file as a raw string but the readAsText method give me a no raw string.
I tryied thing like :

String notRaw = '\"Hello\"';
String raw = @raw;

But not compiling.
How can I do this?

EDIT : My need is to read the string char by char. So I don’t want to read \” as one char ” but as two chars \ and “

Answer 1

If you want to read a file without interpreting escape characters, then you need to readAsBytes, which will give you a list of characters as integers. You can then detect a backslash and quote as:

final int backSlash = @'\'.charCodeAt(0); 
final int quote = @'"'.charCodeAt(0);

You then pass the desired substrings to a string constructor:

String goodString = new String.fromCharCodes(byteList.getRange(start, end));