# demonstrating our new input parsing errors

```ucm:hide
scratch/main> builtins.merge lib.builtin
```

```unison:hide
x = 55
```
```ucm:hide
scratch/main> add
```

`handleNameArg` parse error in `add`
```ucm:error
scratch/main> add .
scratch/main> ls
scratch/main> add 1
scratch/main> ls
scratch/main> add 2
```

todo:
```haskell
  SA.Name name -> pure name
  SA.NameWithBranchPrefix (Left _) name -> pure name
  SA.NameWithBranchPrefix (Right prefix) name -> pure $ Path.prefixNameIfRel (Path.AbsolutePath' prefix) name
  SA.HashQualified hqname -> maybe (Left "can’t find a name from the numbered arg") pure $ HQ.toName hqname
  SA.HashQualifiedWithBranchPrefix (Left _) hqname -> pure $ HQ'.toName hqname
  SA.HashQualifiedWithBranchPrefix (Right prefix) hqname ->
    pure . Path.prefixNameIfRel (Path.AbsolutePath' prefix) $ HQ'.toName hqname
  SA.ShallowListEntry prefix entry ->
    pure . HQ'.toName . fmap (Path.prefixNameIfRel prefix) $ shallowListEntryToHQ' entry
  SA.SearchResult mpath result ->
    maybe (Left "can’t find a name from the numbered arg") pure . HQ.toName $ searchResultToHQ mpath result
  otherNumArg -> Left . I.Formatted $ wrongStructuredArgument "a name" otherNumArg
```

aliasMany: skipped -- similar to `add`

```ucm:error
scratch/main> update arg
```

aliasTerm
```
scratch/main> alias.term ##Nat.+ Nat.+
```

aliasTermForce,
aliasType,


todo:
```

aliasMany,
api,
authLogin,
back,
branchEmptyInputPattern,
branchInputPattern,
branchRenameInputPattern,
branchesInputPattern,
cd,
clear,
clone,
compileScheme,
createAuthor,
debugClearWatchCache,
debugDoctor,
debugDumpNamespace,
debugDumpNamespaceSimple,
debugTerm,
debugTermVerbose,
debugType,
debugLSPFoldRanges,
debugFileHashes,
debugNameDiff,
debugNumberedArgs,
debugTabCompletion,
debugFuzzyOptions,
debugFormat,
delete,
deleteBranch,
deleteProject,
deleteNamespace,
deleteNamespaceForce,
deleteTerm,
deleteTermVerbose,
deleteType,
deleteTypeVerbose,
deleteVerbose,
dependencies,
dependents,
diffNamespace,
display,
displayTo,
docToMarkdown,
docs,
docsToHtml,
edit,
editNamespace,
execute,
find,
findIn,
findAll,
findInAll,
findGlobal,
findShallow,
findVerbose,
findVerboseAll,
sfind,
sfindReplace,
forkLocal,
help,
helpTopics,
history,
ioTest,
ioTestAll,
libInstallInputPattern,
load,
makeStandalone,
mergeBuiltins,
mergeIOBuiltins,
mergeOldInputPattern,
mergeOldPreviewInputPattern,
mergeOldSquashInputPattern,
mergeInputPattern,
mergeCommitInputPattern,
names False, -- names
names True, -- names.global
namespaceDependencies,
previewAdd,
previewUpdate,
printVersion,
projectCreate,
projectCreateEmptyInputPattern,
projectRenameInputPattern,
projectSwitch,
projectsInputPattern,
pull,
pullWithoutHistory,
push,
pushCreate,
pushExhaustive,
pushForce,
quit,
releaseDraft,
renameBranch,
renameTerm,
renameType,
moveAll,
reset,
resetRoot,
runScheme,
saveExecuteResult,
test,
testAll,
todo,
ui,
undo,
up,
update,
updateBuiltins,
updateOld,
updateOldNoPatch,
upgrade,
upgradeCommitInputPattern,
view,
viewGlobal,
viewReflog
```