Fantomas.Core
8.0.0-alpha-025
See the version list below for details.
dotnet add package Fantomas.Core --version 8.0.0-alpha-025
NuGet\Install-Package Fantomas.Core -Version 8.0.0-alpha-025
<PackageReference Include="Fantomas.Core" Version="8.0.0-alpha-025" />
<PackageVersion Include="Fantomas.Core" Version="8.0.0-alpha-025" />
<PackageReference Include="Fantomas.Core" />
paket add Fantomas.Core --version 8.0.0-alpha-025
#r "nuget: Fantomas.Core, 8.0.0-alpha-025"
#:package Fantomas.Core@8.0.0-alpha-025
#addin nuget:?package=Fantomas.Core&version=8.0.0-alpha-025&prerelease
#tool nuget:?package=Fantomas.Core&version=8.0.0-alpha-025&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-025)
- 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-beta-001 | 67 | 9/1/2026 |
| 8.0.0-alpha-026 | 127 | 8/29/2026 |
| 8.0.0-alpha-025 | 83 | 8/28/2026 |
| 8.0.0-alpha-024 | 69 | 8/28/2026 |
| 8.0.0-alpha-023 | 79 | 8/28/2026 |
| 8.0.0-alpha-022 | 86 | 8/27/2026 |
| 8.0.0-alpha-021 | 76 | 8/27/2026 |
| 8.0.0-alpha-020 | 77 | 8/27/2026 |
| 8.0.0-alpha-019 | 85 | 8/26/2026 |
| 8.0.0-alpha-018 | 82 | 8/26/2026 |
| 8.0.0-alpha-017 | 83 | 8/25/2026 |
| 8.0.0-alpha-016 | 85 | 8/25/2026 |
| 8.0.0-alpha-015 | 84 | 8/24/2026 |
| 8.0.0-alpha-014 | 94 | 8/20/2026 |
| 8.0.0-alpha-013 | 85 | 8/19/2026 |
| 8.0.0-alpha-012 | 146 | 4/16/2026 |
| 8.0.0-alpha-011 | 127 | 4/15/2026 |
| 8.0.0-alpha-010 | 122 | 4/15/2026 |
| 8.0.0-alpha-009 | 133 | 4/3/2026 |
| 7.0.6 | 1,040 | 8/19/2026 |
### Fixed
- A `!` line of a `.fantomasignore` takes a path back out again even when a line above it matched the folder holding that path, so `sub/*` followed by `!sub/keep` formats and checks the files under `sub/keep`. Since `8.0.0-alpha-016` a folder an ignore file names is never opened, which is what a folder pattern should mean and is not what it can mean here: closing `sub` decides that `sub/keep` is not there, and the line that would have taken it back out is never reached. The files were not reported as ignored, they were never found, so `--check` passed over a scope smaller than the ignore file describes and `doctor`, which asks about one file and answers correctly, disagreed with the run about that same file. An ignore file that negates anything now leaves every folder open and asks about the files inside one at a time, which is what every version up to `8.0.0-alpha-015` did. An ignore file with no `!` line in it still closes the folders it names. [#3447](https://github.com/fsprojects/fantomas/issues/3447)