| Value | Meaning |
|---|---|
| symbol | A "symbol" expression is a sequence of characters that match the following regex: [a-zA-Z_/\.][a-zA-Z_/\.0-9]* TODO: this regex should probably be configurable by the application. |
| string_ | A string is a sequence of character surrounded by "double-quotes". Might add more types of strings later. The types of strings could also be configurable by the application. |
| functionCall |
Identifies the type of an Expression.