String literals - how express "any character can go here"?

[Korporal]

I'm trying to define a basic string_literal rule that can accept:

"dhkjahdkhksfksdfksdf837598ecfeo8t*^*&^BTuyy";

as an example.

I don't know how to express the idea of '"' [any-char]* '"' though.

[Korporal]

I think I found it, just a dot !

[KvanTTT]

Also, in this case use can use the following syntax: '"' ~'"'* '"'

[Korporal]

@KvanTTT - thanks, that's interesting. I am a bit puzzled though. My grammar is parsing this correctly just now:

procedure English (X)

	declare counter binary(15);	
 
        counter = FACE B034 D85F BAD7:H;

	if counter > 0 then
	   call retour;
	else
	   return;
	end;

	text = "khsAKJSHakshAJK"
	SHajkhda:QKDHAKSDJAH";

	loop while (a > "aaa")
	   go to place;
	end;
		
end;

As you can see it is able to handle, recognize that multi line "string_literal" assignment to "text" halfway down the code, whose rule is:

string_literal: basic_string_literal;

basic_string_literal: (DQUOTE ( . | NEWLINE)*? DQUOTE) ;

(I'm anticipating additional sub rules for string_literal hence the apparent pointless single rule above).

It correctly recognizes the closing quote! It does not get confused by the text "aaa" a little further down, it correctly parses the loop while and so on.

Is it able to do this because it's a parser rule rather than a lexer only rule? It seems too easy, too powerful, many languages have all kinds of fiddly syntax for embedding quotes inside strings yet the above is recognized perfectly - I wonder if my grammar only seems OK, that there might be some hidden gremlin that will bite me later!