Genspio API : Language.Literal.String

struct
    let easy_to_escape s =
      String.for_all s
        ~f:(function
          | 'a' .. 'z' | 'A' .. 'Z' | '0' .. '9' | '-' | '_' | '*' | '&' | '^'
          | '=' | '+' | '%' | '$' | '"' | '\'' | '/' | '#' | '@' | '!' | ' '
          | '~' | '`' | '\\' | '|' | '?' | '>' | '<' | '.' | ',' | ':' | ';'
          | '{' | '}' | '(' | ')' | '[' | ']' -> true
          | other -> false)
    let impossible_to_escape_for_variable = String.exists ~f:((=) '\x00')
  end