| %!in% | Not in infix operator |
| %<<% | Infix string concatenation. |
| %<<<% | Infix string concatenation. |
| %\% | Infix string concatenation. |
| ._ | Format and Translate Strings |
| assert_that | Scoped Assertions |
| collapse | Collapse character Vectors |
| collapse0 | Collapse character Vectors |
| comma_list | Construct a comma separated list |
| condition | Raise a mutable and classed condition. |
| dot-underscore | Format and Translate Strings |
| find_scope | Find the default scope of a call. |
| infix-concatenation | Infix string concatenation. |
| not-in | Not in infix operator |
| pkg_error | Raise a mutable and classed condition. |
| pkg_message | Raise a mutable and classed condition. |
| pkg_warning | Raise a mutable and classed condition. |
| skip_scope | Exclude a function from find_scope |
| suppress | Selectively suppress warnings and messages |
| suppress_conditions | Selectively suppress warnings and messages |
| suppress_messages | Selectively suppress warnings and messages |
| suppress_warnings | Selectively suppress warnings and messages |