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Server-side syntax highlighting for all code (#12047 )

* Server-side syntax hilighting for all code

This PR does a few things:

* Remove all traces of highlight.js
* Use chroma library to provide fast syntax hilighting directly on the server
* Provide syntax hilighting for diffs
* Re-style both unified and split diffs views
* Add custom syntax hilighting styling for both regular and arc-green

Fixes #7729
Fixes #10157
Fixes #11825
Fixes #7728
Fixes #3872
Fixes #3682

And perhaps gets closer to #9553

* fix line marker

* fix repo search

* Fix single line select

* properly load settings

* npm uninstall highlight.js

* review suggestion

* code review

* forgot to call function

* fix test

* Apply suggestions from code review

suggestions from @silverwind thanks

Co-authored-by: silverwind <me@silverwind.io>

* code review

* copy/paste error

* Use const for highlight size limit

* Update web_src/less/_repository.less

Co-authored-by: Lauris BH <lauris@nix.lv>

* update size limit to 1MB and other styling tweaks

* fix highlighting for certain diff sections

* fix test

* add worker back as suggested

Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: Lauris BH <lauris@nix.lv>

2020-07-01 00:34:03 +03:00

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goldmark-highlighting

goldmark-highlighting is an extension for the goldmark that adds syntax-highlighting to the fenced code blocks.

goldmark-highlighting uses chroma as a syntax highlighter.

Installation

go get github.com/yuin/goldmark-highlighting

Usage

import (
    "bytes"
    "fmt"
    "github.com/alecthomas/chroma/formatters/html"
    "github.com/yuin/goldmark"
    "github.com/yuin/goldmark/extension"
    "github.com/yuin/goldmark/parser"
    "github.com/yuin/goldmark-highlighting"

)

func main() {
    markdown := goldmark.New(
        goldmark.WithExtensions(
            highlighting.Highlighting,
        ),
    )
    var buf bytes.Buffer
    if err := markdown.Convert([]byte(source), &buf); err != nil {
        panic(err)
    }
    fmt.Print(title)
}

    markdown := goldmark.New(
        goldmark.WithExtensions(
            highlighting.NewHighlighting(
               highlighting.WithStyle("monokai"),
               highlighting.WithFormatOptions(
                   html.WithLineNumbers(),
               ),
            ),
        ),
    )

License

MIT

Author

Yusuke Inuzuka

1.3 KiB Vendored Raw Blame History