nb-synth

syntax highlighting for code cells and semi-structured output (JSON/XML) with chroma.

Installation

go get github.com/bevzzz/nb-synth

Usage

Adding rich syntax highlighting to your Jupyter notebooks with synth is simple and intuitive.

Start by importing both libraries to your project:

import (
    "github.com/bevzzz/nb"
    synth "github.com/bevzzz/nb-synth"
)

Then, extend nb converter and convert your Jupyter notebook:

import (
    // synth allows configuring chroma's lexer and formatter
    // with their "native" options, so you will need to import these
    // before adding them to the extension.
    "github.com/alecthomas/chroma"
    chromahtml "github.com/alecthomas/chroma/formatters/html"
)

// Use default configurations.
c := nb.New(
    nb.WithExtensions(
        synth.Highlighting,
    ),
)

// Or, apply options to control lexing, styling, and formatting.
c := nb.New(
    nb.WithExtensions(
        synth.NewHighlighting(
            synth.WithTokenizeOptions(&chroma.TokenizeOptions{
                EnsureLF: true,
            }),
            synth.WithStyle("monokai"),
            synth.WithFormatOptions(
                chromahtml.WithClasses(true),
                chromahtml.WithLineNumbers(true),
            ),
        ),
    ),
)

if err := c.Convert(io.Stdout, b); err != nil {
    panic(err)
}

This package draws a lot from the analogous goldmark-highlighting, which adds syntax highlighting to goldmark's Markdown. If you've had the chance to work with these packages before, synth's structure and APIs will be familiar to you.

Attributions

Repository cover: Synthesizer Vectors by Vecteezy

License

This software is released under the MIT License.