Explicitly sets the ID of a macro.
In OurBigBook Markup, every single macro has an ID, which can be either:
- explicit: extracted from some input given by the user, either the
idargument or the
titleargument. Explicit IDs can be referenced in Internal cross references and must be unique
- implicit: automatically generated numerical ID. Implicit IDs cannot be referenced in Internal cross references and don't need to be unique. Their primary application is generating on hover links next to everything you hover, e.g. arbitrary paragraphs.