Hands-On Design Patterns and Best Practices with Julia

Developing nonstandard string literals

There is a special kind of macro for defining nonstandard string literals, which look like a literal string but instead a macro is called when it is referenced.

A good example would be Julia's regular expression literal—for example, r"^hello". It is not a standard string literal because of the r prefix in front of the double quote. Let's first check the data type of such a literal. We can see that a Regex object is created from the string:

We can also create our own nonstandard string literals. Let's try to work through a fun example together here.

Suppose that, for development purposes, we want to conveniently ...