There are times when you wish to examine the data of the story as it is running - for instance, checking what tag a certain passage has, and performing some special behaviour as a result. This macro provides that functionality.
The datamap contains the following names and values.
|source||The source markup of the passage, exactly as you entered it in the Twine editor|
|name||The string name of this passage.|
|tags||An array of strings, which are the tags you gave to this passage.|
The “source” value, like all strings, can be printed using (print:). Be warned that printing the source of the current passage, while inside of it, may lead to an infinite regress.
Interestingly, the construction
(print: (passage: "Cellar")'s source) is essentially identical in function (albeit longer to write)