Parsing Quoted text wich contains Quotes with escape sequence

Question

Hi,
How to parse a quoted text that contains a quote with escape charactor.
Eg.  "Quoted\"this\"text"
I have seen lot of example for parsiing quoted identifier which can not conatain nested quotes.

Thanks,
Michael

Answer 1

It's built-in to some of the core grammars. Just add this to your language:

final token String
           = Language.Grammar.TextLiteral;

Answer 2

My specific requirement is to contain quote characters within a string. Using "TextLiiteral" is forcing the input stream to have "\" escape charactor before teh firs quote also.
Input Stream example are : 23 23 "Test.SomeValue=\"3333\"" , 
                                         if(24 35 "Test.SomeValue=\"65500\"||Test.SomeValue=\"65007\"||Test.SomeValue=\"65857\"||)

Finally I used following syntax to resolve this. I don't know it is correct or not. but is working for time being.

        token QuotedIdentifier ='"' i:(Text* (QuotedTextEscape|Text)* Text*) '"' =>i;
        token Text = ^('"' );
        token QuotedTextEscape = "\\\"" Text* "\\\""; 

Answer 3

That's sort of surprising... you might have something else going on such as a token conflict because I'm pretty sure TextLiteral should match things such as "Test\"3333\"".