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package main
// example for https://blog.kowalczyk.info/article/cxn3/advanced-markdown-processing-in-go.html
import (
"os"
"github.com/gomarkdown/markdown"
"github.com/gomarkdown/markdown/ast"
"github.com/gomarkdown/markdown/html"
"github.com/gomarkdown/markdown/parser"
"fmt"
)
var mds = `# header
Sample text.
[link](http://example.com)
`
var printAst = false
func mdToHTML(md []byte) []byte {
// create markdown parser with extensions
extensions := parser.CommonExtensions | parser.AutoHeadingIDs | parser.NoEmptyLineBeforeBlock
p := parser.NewWithExtensions(extensions)
doc := p.Parse(md)
if printAst {
fmt.Print("--- AST tree:\n")
ast.Print(os.Stdout, doc)
fmt.Print("\n")
}
// create HTML renderer with extensions
htmlFlags := html.CommonFlags | html.HrefTargetBlank
opts := html.RendererOptions{Flags: htmlFlags}
renderer := html.NewRenderer(opts)
return markdown.Render(doc, renderer)
}
func main() {
md := []byte(mds)
html := mdToHTML(md)
fmt.Printf("--- Markdown:\n%s\n\n--- HTML:\n%s\n", md, html)
}
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