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61 lines
1.5 KiB
Go
61 lines
1.5 KiB
Go
3 years ago
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package articles
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import (
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"fmt"
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"github.com/yuin/goldmark"
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"github.com/yuin/goldmark/extension"
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"github.com/yuin/goldmark/parser"
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"github.com/yuin/goldmark/renderer/html"
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"github.com/yuin/goldmark/util"
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chromahtml "github.com/alecthomas/chroma/formatters/html"
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mathjax "github.com/litao91/goldmark-mathjax"
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highlighting "github.com/yuin/goldmark-highlighting"
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)
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var articleMarkdown goldmark.Markdown
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// https://github.com/yuin/goldmark-highlighting/blob/9216f9c5aa010c549cc9fc92bb2593ab299f90d4/highlighting_test.go#L27
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func customCodeBlockWrapper(w util.BufWriter, c highlighting.CodeBlockContext, entering bool) {
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lang, ok := c.Language()
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if entering {
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if ok {
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w.WriteString(fmt.Sprintf(`<pre class="%s"><code>`, lang))
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return
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}
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w.WriteString("<pre><code>")
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} else {
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if ok {
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w.WriteString("</pre></code>")
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return
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}
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w.WriteString("</pre></code>")
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}
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}
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func init() {
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articleMarkdown = goldmark.New(
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goldmark.WithExtensions(
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extension.GFM,
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extension.Typographer,
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// Questo pacchetto ha un nome stupido perché in realtà si occupa solo del parsing lato server del Markdown mentre lato client usiamo KaTeX.
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mathjax.NewMathJax(),
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highlighting.NewHighlighting(
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highlighting.WithStyle("github"),
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highlighting.WithWrapperRenderer(customCodeBlockWrapper),
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highlighting.WithFormatOptions(
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chromahtml.PreventSurroundingPre(true),
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),
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),
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),
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goldmark.WithParserOptions(
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parser.WithAutoHeadingID(),
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),
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goldmark.WithRendererOptions(
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html.WithHardWraps(),
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html.WithXHTML(),
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),
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)
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}
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