| OAR | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OCaml_LGPL_linking_exception | Distribution.SPDX.LicenseExceptionId, Distribution.SPDX |
| OCCT_exception_1_0 | Distribution.SPDX.LicenseExceptionId, Distribution.SPDX |
| OCCT_PL | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OCLC_2_0 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| octDigit | Distribution.Compat.CharParsing |
| ODbL_1_0 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| ODC_By_1_0 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| odd | Distribution.Compat.Prelude |
| OFFIS | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OFL_1_0 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OFL_1_0_no_RFN | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OFL_1_0_RFN | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OFL_1_1 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OFL_1_1_no_RFN | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OFL_1_1_RFN | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OGC_1_0 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OGDL_Taiwan_1_0 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OGL_Canada_2_0 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OGL_UK_1_0 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OGL_UK_2_0 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OGL_UK_3_0 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OGTSL | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OLDAP_1_1 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OLDAP_1_2 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OLDAP_1_3 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OLDAP_1_4 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OLDAP_2_0 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OLDAP_2_0_1 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OLDAP_2_1 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OLDAP_2_2 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OLDAP_2_2_1 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OLDAP_2_2_2 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OLDAP_2_3 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OLDAP_2_4 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OLDAP_2_5 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OLDAP_2_6 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OLDAP_2_7 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OLDAP_2_8 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| oldExtensions | |
| 1 (Function) | Distribution.Types.BuildInfo, Distribution.PackageDescription |
| 2 (Function) | Distribution.Types.BuildInfo.Lens, Distribution.Types.Lens |
| OLFL_1_3 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OML | Distribution.SPDX.LicenseId, Distribution.SPDX |
| on | Distribution.Compat.Prelude |
| OneComponentRequestedSpec | Distribution.Types.ComponentRequestedSpec |
| oneOf | Distribution.Compat.CharParsing |
| OnlyRelative | Distribution.Utils.Path |
| OpenBrace | Distribution.Fields.Lexer |
| OpenBSD | Distribution.System |
| OpenJDK_assembly_exception_1_0 | Distribution.SPDX.LicenseExceptionId, Distribution.SPDX |
| OpenModule | |
| 1 (Type/Class) | Distribution.Backpack |
| 2 (Data Constructor) | Distribution.Backpack |
| openModuleFreeHoles | Distribution.Backpack |
| OpenModuleSubst | Distribution.Backpack |
| openModuleSubstFreeHoles | Distribution.Backpack |
| OpenModuleVar | Distribution.Backpack |
| OpenPBS_2_3 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OpenSSL | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OpenSSL_standalone | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OpenUnitId | Distribution.Backpack |
| openUnitIdFreeHoles | Distribution.Backpack |
| OpenVision | Distribution.SPDX.LicenseId, Distribution.SPDX |
| Openvpn_openssl_exception | Distribution.SPDX.LicenseExceptionId, Distribution.SPDX |
| OPL_1_0 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OPL_UK_3_0 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| option | Distribution.Compat.Parsing, Distribution.Compat.CharParsing |
| Option' | |
| 1 (Type/Class) | Distribution.Compat.Semigroup |
| 2 (Data Constructor) | Distribution.Compat.Semigroup |
| optional | Distribution.Compat.Parsing, Distribution.Compat.CharParsing |
| optionalField | Distribution.FieldGrammar.Class, Distribution.FieldGrammar |
| optionalFieldAla | Distribution.FieldGrammar.Class, Distribution.FieldGrammar |
| optionalFieldDef | Distribution.FieldGrammar.Class, Distribution.FieldGrammar |
| optionalFieldDefAla | Distribution.FieldGrammar.Class, Distribution.FieldGrammar |
| options | |
| 1 (Function) | Distribution.Types.BuildInfo, Distribution.PackageDescription |
| 2 (Function) | Distribution.Types.BuildInfo.Lens, Distribution.Types.Lens |
| OPUBL_1_0 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| or | Distribution.Compat.Prelude |
| Ord | Distribution.Compat.Prelude |
| ord | Distribution.Compat.Prelude |
| Ordering | Distribution.Compat.Prelude |
| ordNub | Distribution.Utils.Generic |
| ordNubBy | Distribution.Utils.Generic |
| ordNubRight | Distribution.Utils.Generic |
| OrEarlierVersion | Distribution.Types.VersionRange.Internal |
| orEarlierVersion | Distribution.Types.VersionRange.Internal, Distribution.Types.VersionRange, Distribution.Version |
| OrEarlierVersionF | Distribution.Types.VersionRange.Internal, Distribution.Types.VersionRange, Distribution.Version |
| OrLaterVersion | Distribution.Types.VersionRange.Internal |
| orLaterVersion | Distribution.Types.VersionRange.Internal, Distribution.Types.VersionRange, Distribution.Version |
| OrLaterVersionF | Distribution.Types.VersionRange.Internal, Distribution.Types.VersionRange, Distribution.Version |
| OrPatterns | Language.Haskell.Extension |
| OS | |
| 1 (Type/Class) | Distribution.System |
| 2 (Data Constructor) | Distribution.Types.ConfVar, Distribution.Types.GenericPackageDescription.Lens, Distribution.Types.Lens, Distribution.PackageDescription |
| OSET_PL_2_1 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OSL_1_0 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OSL_1_1 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OSL_2_0 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OSL_2_1 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OSL_3_0 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| OSX | Distribution.System |
| OtherArch | Distribution.System |
| OtherCompiler | Distribution.Compiler |
| otherExtensions | |
| 1 (Function) | Distribution.Types.BuildInfo, Distribution.PackageDescription |
| 2 (Function) | Distribution.Types.BuildInfo.Lens, Distribution.Types.Lens |
| otherLanguages | |
| 1 (Function) | Distribution.Types.BuildInfo, Distribution.PackageDescription |
| 2 (Function) | Distribution.Types.BuildInfo.Lens, Distribution.Types.Lens |
| OtherLicense | Distribution.License |
| otherModules | |
| 1 (Function) | Distribution.Types.BuildInfo, Distribution.PackageDescription |
| 2 (Function) | Distribution.Types.BuildInfo.Lens, Distribution.Types.Lens |
| OtherOS | Distribution.System |
| OtherRepoType | Distribution.Types.SourceRepo, Distribution.PackageDescription |
| otherwise | Distribution.Compat.Prelude |
| over | Distribution.Compat.Lens |
| OverlappingInstances | Language.Haskell.Extension |
| OverloadedLabels | Language.Haskell.Extension |
| OverloadedLists | Language.Haskell.Extension |
| OverloadedRecordDot | Language.Haskell.Extension |
| OverloadedRecordUpdate | Language.Haskell.Extension |
| OverloadedStrings | Language.Haskell.Extension |
| O_UDA_1_0 | Distribution.SPDX.LicenseId, Distribution.SPDX |