95 lines
2.0 KiB
Go
95 lines
2.0 KiB
Go
package parsing
|
|
|
|
import (
|
|
"bytes"
|
|
|
|
"github.com/yuin/goldmark"
|
|
highlighting "github.com/yuin/goldmark-highlighting"
|
|
"github.com/yuin/goldmark/extension"
|
|
"github.com/yuin/goldmark/util"
|
|
)
|
|
|
|
// Used for rendering real-time previews of post content.
|
|
var ForumPreviewMarkdown = goldmark.New(
|
|
goldmark.WithExtensions(makeGoldmarkExtensions(MarkdownOptions{
|
|
Previews: true,
|
|
Embeds: true,
|
|
})...),
|
|
)
|
|
|
|
// Used for generating the final HTML for a post.
|
|
var ForumRealMarkdown = goldmark.New(
|
|
goldmark.WithExtensions(makeGoldmarkExtensions(MarkdownOptions{
|
|
Previews: false,
|
|
Embeds: true,
|
|
})...),
|
|
)
|
|
|
|
// Used for generating plain-text previews of posts.
|
|
var PlaintextMarkdown = goldmark.New(
|
|
goldmark.WithExtensions(makeGoldmarkExtensions(MarkdownOptions{
|
|
Previews: false,
|
|
Embeds: true,
|
|
})...),
|
|
goldmark.WithRenderer(plaintextRenderer{}),
|
|
)
|
|
|
|
// Used for processing Discord messages
|
|
var DiscordMarkdown = goldmark.New(
|
|
goldmark.WithExtensions(makeGoldmarkExtensions(MarkdownOptions{
|
|
Previews: false,
|
|
Embeds: false,
|
|
})...),
|
|
)
|
|
|
|
func ParseMarkdown(source string, md goldmark.Markdown) string {
|
|
var buf bytes.Buffer
|
|
if err := md.Convert([]byte(source), &buf); err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
return buf.String()
|
|
}
|
|
|
|
type MarkdownOptions struct {
|
|
Previews bool
|
|
Embeds bool
|
|
}
|
|
|
|
func makeGoldmarkExtensions(opts MarkdownOptions) []goldmark.Extender {
|
|
var extenders []goldmark.Extender
|
|
extenders = append(extenders,
|
|
extension.GFM,
|
|
highlightExtension,
|
|
SpoilerExtension{},
|
|
)
|
|
|
|
if opts.Embeds {
|
|
extenders = append(extenders,
|
|
EmbedExtension{
|
|
Preview: opts.Previews,
|
|
},
|
|
)
|
|
}
|
|
|
|
extenders = append(extenders,
|
|
MathjaxExtension{},
|
|
BBCodeExtension{
|
|
Preview: opts.Previews,
|
|
},
|
|
)
|
|
|
|
return extenders
|
|
}
|
|
|
|
var highlightExtension = highlighting.NewHighlighting(
|
|
highlighting.WithFormatOptions(HMNChromaOptions...),
|
|
highlighting.WithWrapperRenderer(func(w util.BufWriter, context highlighting.CodeBlockContext, entering bool) {
|
|
if entering {
|
|
w.WriteString(`<pre class="hmn-code">`)
|
|
} else {
|
|
w.WriteString(`</pre>`)
|
|
}
|
|
}),
|
|
)
|