| Last | Darcs.SelectChanges |
| LastN | Darcs.Flags, Darcs.Arguments |
| LastReversed | Darcs.SelectChanges |
| Lazy | Darcs.Flags, Darcs.Arguments |
| LeaveTestDir | Darcs.Flags, Darcs.Arguments |
| leaveTestDir | Darcs.Arguments |
| left | Darcs.Witnesses.WZipper |
| leftmost | Darcs.Witnesses.WZipper |
| lengthFL | Darcs.Witnesses.Ordered |
| lengthFZ | Darcs.Witnesses.WZipper |
| lengthRL | Darcs.Witnesses.Ordered |
| lexChar | Darcs.Patch.ReadMonads |
| lexEof | Darcs.Patch.ReadMonads |
| lexString | Darcs.Patch.ReadMonads |
| liftApply | Darcs.Patch.ApplyMonad |
| liftSM | Darcs.Witnesses.Sealed |
| lineColor | Printer |
| lineColorS | Printer |
| lineColorT | Printer |
| linesPS | ByteStringUtils |
| linesStartingWith | Darcs.Patch.ReadMonads |
| linesStartingWithEndingWith | Darcs.Patch.ReadMonads |
| list | Darcs.Commands.Show |
| listAvailableCommands | Darcs.Commands.Help |
| listConflictedFiles | Darcs.Patch.Conflict, Darcs.Patch |
| listFiles | Darcs.Arguments |
| ListFormat | Darcs.Patch.Format |
| ListFormatDefault | Darcs.Patch.Format |
| ListFormatV1 | Darcs.Patch.Format |
| ListFormatV2 | Darcs.Patch.Format |
| listInventories | Darcs.Repository.HashedRepo |
| listObjects | Darcs.Patch.Prim.V3.ObjectMap, Darcs.Patch.Prim.V3.Apply |
| ListOptions | Darcs.Flags, Darcs.Arguments |
| listOptions | Darcs.Arguments |
| listRegisteredFiles | Darcs.Arguments |
| listTouchedFiles | Darcs.Patch.Inspect, Darcs.Patch.Patchy, Darcs.Patch |
| listUnregisteredFiles | Darcs.Arguments |
| Location | Darcs.Patch.Prim.V3.ObjectMap, Darcs.Patch.Prim.V3.Core |
| log | Darcs.Commands.Changes |
| LogFile | Darcs.Flags, Darcs.Arguments |
| logfile | Darcs.Arguments |
| LookForAdds | Darcs.Flags, Darcs.Arguments |
| lookforadds | Darcs.Arguments |
| lookTouch | Darcs.Patch.TouchesFiles |
| Low | URL.Request |
| lparen | Printer |