[antlr-interest] lexer: embedded quotes assistance

[Diehl, Matthew J]

> History...
> I am replicating an existing language that uses embedded quotes
> to indicate a quote character.  

I'll show you something I wrote that worked...but there's probably some other simpler ways using '.'
My quoted text can only use graphic characters (a-z 0-9 SpaceCharacters, and other graphic characters (\u00a1 - \u00ff).

StringLiteral
  :Quote GraphicCharacter* Quote
  ;
fragment
GraphicCharacter
  : UpperCaseLetter | LowerCaseLetter | Digit | SpecialCharacter | SpaceCharacter | (Quote Quote)
  ;

But since it matches double quotes, it will continue when it sees one

> In addition to embedded quotes
> the quoted material may span multiple lines by using the ¬
> character followed by a CR.  Now a rule for treating ¬CR as
> whitespace is not an issue as I just create a rule

I'm sure if you include the CR rule above, it would work as well

Ok,

Matt