Fantomas.Core
8.0.0-alpha-024
See the version list below for details.
dotnet add package Fantomas.Core --version 8.0.0-alpha-024
NuGet\Install-Package Fantomas.Core -Version 8.0.0-alpha-024
<PackageReference Include="Fantomas.Core" Version="8.0.0-alpha-024" />
<PackageVersion Include="Fantomas.Core" Version="8.0.0-alpha-024" />
<PackageReference Include="Fantomas.Core" />
paket add Fantomas.Core --version 8.0.0-alpha-024
#r "nuget: Fantomas.Core, 8.0.0-alpha-024"
#:package Fantomas.Core@8.0.0-alpha-024
#addin nuget:?package=Fantomas.Core&version=8.0.0-alpha-024&prerelease
#tool nuget:?package=Fantomas.Core&version=8.0.0-alpha-024&prerelease
Fantomas

An opinionated F# source code formatter.
dotnet tool install fantomas
Documentation is available at https://fsprojects.github.io/fantomas/docs/index.html
If you point a coding agent at Fantomas, give it llms.txt for an index of the documentation, or llms-full.txt for all of it in one file.
Contributing Guidelines
See the Contribution Guidelines and our contributors documentation
| Product | Versions Compatible and additional computed target framework versions. |
|---|---|
| .NET | net5.0 was computed. net5.0-windows was computed. net6.0 was computed. net6.0-android was computed. net6.0-ios was computed. net6.0-maccatalyst was computed. net6.0-macos was computed. net6.0-tvos was computed. net6.0-windows was computed. net7.0 was computed. net7.0-android was computed. net7.0-ios was computed. net7.0-maccatalyst was computed. net7.0-macos was computed. net7.0-tvos was computed. net7.0-windows was computed. net8.0 was computed. net8.0-android was computed. net8.0-browser was computed. net8.0-ios was computed. net8.0-maccatalyst was computed. net8.0-macos was computed. net8.0-tvos was computed. net8.0-windows was computed. net9.0 was computed. net9.0-android was computed. net9.0-browser was computed. net9.0-ios was computed. net9.0-maccatalyst was computed. net9.0-macos was computed. net9.0-tvos was computed. net9.0-windows was computed. net10.0 was computed. net10.0-android was computed. net10.0-browser was computed. net10.0-ios was computed. net10.0-maccatalyst was computed. net10.0-macos was computed. net10.0-tvos was computed. net10.0-windows was computed. |
| .NET Core | netcoreapp2.0 was computed. netcoreapp2.1 was computed. netcoreapp2.2 was computed. netcoreapp3.0 was computed. netcoreapp3.1 was computed. |
| .NET Standard | netstandard2.0 is compatible. netstandard2.1 was computed. |
| .NET Framework | net461 was computed. net462 was computed. net463 was computed. net47 was computed. net471 was computed. net472 was computed. net48 was computed. net481 was computed. |
| MonoAndroid | monoandroid was computed. |
| MonoMac | monomac was computed. |
| MonoTouch | monotouch was computed. |
| Tizen | tizen40 was computed. tizen60 was computed. |
| Xamarin.iOS | xamarinios was computed. |
| Xamarin.Mac | xamarinmac was computed. |
| Xamarin.TVOS | xamarintvos was computed. |
| Xamarin.WatchOS | xamarinwatchos was computed. |
-
.NETStandard 2.0
- Fantomas.FCS (>= 8.0.0-alpha-024)
- FSharp.Core (>= 10.0.100)
- System.Collections.Immutable (>= 10.0.6)
- System.Diagnostics.DiagnosticSource (>= 10.0.6)
- System.Memory (>= 4.6.3)
- System.Runtime (>= 4.3.1)
NuGet packages (6)
Showing the top 5 NuGet packages that depend on Fantomas.Core:
| Package | Downloads |
|---|---|
|
Myriad.Core
Core Myriad library used for developing plugins |
|
|
Fantomas.Extras
Utility package for Fantomas |
|
|
WoofWare.Whippet.Fantomas
Helpers for accessing Fantomas syntax trees. |
|
|
Fabulous.AST
Fabulous.AST, an Abstract Syntax Tree (AST) Domain Specific Language (DSL) for F#. |
|
|
Partas.Feliz.Generator
Package Description |
GitHub repositories
This package is not used by any popular GitHub repositories.
| Version | Downloads | Last Updated |
|---|---|---|
| 8.0.0-alpha-026 | 0 | 8/29/2026 |
| 8.0.0-alpha-025 | 33 | 8/28/2026 |
| 8.0.0-alpha-024 | 24 | 8/28/2026 |
| 8.0.0-alpha-023 | 31 | 8/28/2026 |
| 8.0.0-alpha-022 | 42 | 8/27/2026 |
| 8.0.0-alpha-021 | 37 | 8/27/2026 |
| 8.0.0-alpha-020 | 35 | 8/27/2026 |
| 8.0.0-alpha-019 | 40 | 8/26/2026 |
| 8.0.0-alpha-018 | 37 | 8/26/2026 |
| 8.0.0-alpha-017 | 69 | 8/25/2026 |
| 8.0.0-alpha-016 | 70 | 8/25/2026 |
| 8.0.0-alpha-015 | 78 | 8/24/2026 |
| 8.0.0-alpha-014 | 90 | 8/20/2026 |
| 8.0.0-alpha-013 | 83 | 8/19/2026 |
| 8.0.0-alpha-012 | 145 | 4/16/2026 |
| 8.0.0-alpha-011 | 125 | 4/15/2026 |
| 8.0.0-alpha-010 | 121 | 4/15/2026 |
| 8.0.0-alpha-009 | 133 | 4/3/2026 |
| 8.0.0-alpha-008 | 143 | 3/25/2026 |
| 7.0.6 | 774 | 8/19/2026 |
### Fixed
- The dots of a chain that breaks are indented past the head of the chain, instead of landing on the head's own column or to the left of it. A dot on the head's column reads as a new item rather than as the chain continuing, and inside a parenthesis the parser refuses the output outright: `let v = ((someObject.First(a).Second(b).Third(c)))` at two-space indentation produced code Fantomas would not accept from itself, so the file was left unformatted with a bug report on the console. The dots now step one indent level at a time until they clear the head, which keeps every column a multiple of the indent size; a chain whose dots already cleared its head is untouched. This replaces a branch that anchored a parenthesised chain on its opening parenthesis, written when only a real dot chain reached it. Since `8.0.0-alpha-014` a dotted long identifier is a chain too, so it also fired for the likes of `Seq.map`, which never breaks, and moved a lambda written behind such a call three columns for no reason. [#3445](https://github.com/fsprojects/fantomas/pull/3445)