Function parol::conversions::dot::grammar_to_dot::render_nt_dot_string

pub fn render_nt_dot_string(grammar_config: &GrammarConfig) -> String

Formats the given Cfg in a special dot-format. The basic graph type here resembles the same as the NtGrammarGraph type used for detection of left-recursions. The outputted dot-format is more suitable for this grammar graph type than the dot format provides by the PetGraph itself.