Dot parser is forbidding characters it should not within the "double quoted string" variant of IDs. about graphviz-rust

[ScottCUSA]

Another example:

test.dot:

digraph graph_test {
  start [
    label="context.set('This \\\"shouldn\'t\\\" error');"
  ];
  end [
    label="End"
  ];
  start-> end;
}

The above graph rendered to a PNG using graphviz

> dot -V
dot - graphviz version 2.49.3 (0)
> dot -Tpng -O test.dot
> 

It looks like this allows the above to work.

char = {
    !("\"" | "\\") ~ ANY
    | "\\" ~ ("\"" | "\\" | "/" | "b" | "f" | "n" | "r" | "t" | "'" )
    | "\\" ~ ("u" ~ ASCII_HEX_DIGIT{4})
    // TODO: the following option is only valid for some attributes: https://graphviz.org/docs/attr-types/escString/
    | "\\" ~ ("G" | "N" | "E" | "H" | "T" | "L")
    | "\\" ~ ("u" ~ ASCII_HEX_DIGIT{4})
}

[besok]

Yeah, it seems to be a hole in the grammar.