diff --git a/README.md b/README.md index 7ea5247..d9c08a2 100644 --- a/README.md +++ b/README.md @@ -1,4 +1,6 @@ -Blackfriday [![Build Status](https://travis-ci.org/russross/blackfriday.svg?branch=master)](https://travis-ci.org/russross/blackfriday) +Blackfriday +[![Build Status][BuildV2SVG]][BuildV2URL] +[![PkgGoDev][PkgGoDevV2SVG]][PkgGoDevV2URL] =========== Blackfriday is a [Markdown][1] processor implemented in [Go][2]. It @@ -16,19 +18,21 @@ It started as a translation from C of [Sundown][3]. Installation ------------ -Blackfriday is compatible with any modern Go release. With Go 1.7 and git -installed: +Blackfriday is compatible with modern Go releases in module mode. +With Go installed: - go get gopkg.in/russross/blackfriday.v2 + go get github.com/russross/blackfriday/v2 -will download, compile, and install the package into your `$GOPATH` -directory hierarchy. Alternatively, you can achieve the same if you -import it into a project: +will resolve and add the package to the current development module, +then build and install it. Alternatively, you can achieve the same +if you import it in a package: - import "gopkg.in/russross/blackfriday.v2" + import "github.com/russross/blackfriday/v2" and `go get` without parameters. +Legacy GOPATH mode is unsupported. + Versions -------- @@ -36,13 +40,9 @@ Versions Currently maintained and recommended version of Blackfriday is `v2`. It's being developed on its own branch: https://github.com/russross/blackfriday/tree/v2 and the documentation is available at -https://godoc.org/gopkg.in/russross/blackfriday.v2. +https://pkg.go.dev/github.com/russross/blackfriday/v2. -It is `go get`-able via via [gopkg.in][6] at `gopkg.in/russross/blackfriday.v2`, -but we highly recommend using package management tool like [dep][7] or -[Glide][8] and make use of semantic versioning. With package management you -should import `github.com/russross/blackfriday` and specify that you're using -version 2.0.0. +It is `go get`-able in module mode at `github.com/russross/blackfriday/v2`. Version 2 offers a number of improvements over v1: @@ -62,6 +62,11 @@ Potential drawbacks: v2. See issue [#348](https://github.com/russross/blackfriday/issues/348) for tracking. +If you are still interested in the legacy `v1`, you can import it from +`github.com/russross/blackfriday`. Documentation for the legacy v1 can be found +here: https://pkg.go.dev/github.com/russross/blackfriday. + + Usage ----- @@ -91,7 +96,7 @@ Here's an example of simple usage of Blackfriday together with Bluemonday: ```go import ( "github.com/microcosm-cc/bluemonday" - "github.com/russross/blackfriday" + "github.com/russross/blackfriday/v2" ) // ... @@ -116,7 +121,7 @@ markdown file using a standalone program. You can also browse the source directly on github if you are just looking for some example code: -* +* Note that if you have not already done so, installing `blackfriday-tool` will be sufficient to download and install @@ -133,12 +138,12 @@ anchors for headings when `AutoHeadingIDs` extension is enabled. The algorithm has a specification, so that other packages can create compatible anchor names and links to those anchors. -The specification is located at https://godoc.org/gopkg.in/russross/blackfriday.v2#hdr-Sanitized_Anchor_Names. +The specification is located at https://pkg.go.dev/github.com/russross/blackfriday/v2#hdr-Sanitized_Anchor_Names. -[`SanitizedAnchorName`](https://godoc.org/gopkg.in/russross/blackfriday.v2#SanitizedAnchorName) exposes this functionality, and can be used to +[`SanitizedAnchorName`](https://pkg.go.dev/github.com/russross/blackfriday/v2#SanitizedAnchorName) exposes this functionality, and can be used to create compatible links to the anchor names generated by blackfriday. This algorithm is also implemented in a small standalone package at -[`github.com/shurcooL/sanitized_anchor_name`](https://godoc.org/github.com/shurcooL/sanitized_anchor_name). It can be useful for clients +[`github.com/shurcooL/sanitized_anchor_name`](https://pkg.go.dev/github.com/shurcooL/sanitized_anchor_name). It can be useful for clients that want a small package and don't need full functionality of blackfriday. @@ -217,6 +222,15 @@ implements the following extensions: You can use 3 or more backticks to mark the beginning of the block, and the same number to mark the end of the block. + To preserve classes of fenced code blocks while using the bluemonday + HTML sanitizer, use the following policy: + + ```go + p := bluemonday.UGCPolicy() + p.AllowAttrs("class").Matching(regexp.MustCompile("^language-[a-zA-Z0-9]+$")).OnElements("code") + html := p.SanitizeBytes(unsafe) + ``` + * **Definition lists**. A simple definition list is made of a single-line term followed by a colon and the definition for that term. @@ -268,7 +282,7 @@ Other renderers Blackfriday is structured to allow alternative rendering engines. Here are a few of note: -* [github_flavored_markdown](https://godoc.org/github.com/shurcooL/github_flavored_markdown): +* [github_flavored_markdown](https://pkg.go.dev/github.com/shurcooL/github_flavored_markdown): provides a GitHub Flavored Markdown renderer with fenced code block highlighting, clickable heading anchor links. @@ -279,21 +293,28 @@ are a few of note: * [markdownfmt](https://github.com/shurcooL/markdownfmt): like gofmt, but for markdown. -* [LaTeX output](https://github.com/Ambrevar/Blackfriday-LaTeX): +* [LaTeX output](https://gitlab.com/ambrevar/blackfriday-latex): renders output as LaTeX. +* [bfchroma](https://github.com/Depado/bfchroma/): provides convenience + integration with the [Chroma](https://github.com/alecthomas/chroma) code + highlighting library. bfchroma is only compatible with v2 of Blackfriday and + provides a drop-in renderer ready to use with Blackfriday, as well as + options and means for further customization. + * [Blackfriday-Confluence](https://github.com/kentaro-m/blackfriday-confluence): provides a [Confluence Wiki Markup](https://confluence.atlassian.com/doc/confluence-wiki-markup-251003035.html) renderer. * [Blackfriday-Slack](https://github.com/karriereat/blackfriday-slack): converts markdown to slack message style -Todo + +TODO ---- * More unit testing -* Improve unicode support. It does not understand all unicode +* Improve Unicode support. It does not understand all Unicode rules (about what constitutes a letter, a punctuation symbol, etc.), so it may fail to detect word boundaries correctly in - some instances. It is safe on all utf-8 input. + some instances. It is safe on all UTF-8 input. License @@ -305,6 +326,10 @@ License [1]: https://daringfireball.net/projects/markdown/ "Markdown" [2]: https://golang.org/ "Go Language" [3]: https://github.com/vmg/sundown "Sundown" - [4]: https://godoc.org/gopkg.in/russross/blackfriday.v2#Parse "Parse func" + [4]: https://pkg.go.dev/github.com/russross/blackfriday/v2#Parse "Parse func" [5]: https://github.com/microcosm-cc/bluemonday "Bluemonday" - [6]: https://labix.org/gopkg.in "gopkg.in" + + [BuildV2SVG]: https://travis-ci.org/russross/blackfriday.svg?branch=v2 + [BuildV2URL]: https://travis-ci.org/russross/blackfriday + [PkgGoDevV2SVG]: https://pkg.go.dev/badge/github.com/russross/blackfriday/v2 + [PkgGoDevV2URL]: https://pkg.go.dev/github.com/russross/blackfriday/v2