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package builder
import (
"bytes"
"regexp"
"strings"
"github.com/yuin/goldmark"
"github.com/yuin/goldmark/extension"
"github.com/yuin/goldmark/parser"
"github.com/yuin/goldmark/renderer/html"
)
var md = goldmark.New(
goldmark.WithExtensions(
extension.GFM,
extension.Table,
extension.Strikethrough,
extension.TaskList,
),
goldmark.WithParserOptions(
parser.WithAutoHeadingID(),
),
goldmark.WithRendererOptions(
// Allow raw HTML pass-through so component tags survive round-trip.
html.WithUnsafe(),
),
)
// MarkdownToHTML converts a markdown string to an HTML fragment.
func MarkdownToHTML(body string) (string, error) {
var buf bytes.Buffer
if err := md.Convert([]byte(body), &buf); err != nil {
return "", err
}
return buf.String(), nil
}
var (
htmlTagRe = regexp.MustCompile(`<[^>]+>`)
multiSpaceRe = regexp.MustCompile(`\s+`)
)
// StripHTML removes HTML tags and normalises whitespace for search indexing.
func StripHTML(h string) string {
plain := htmlTagRe.ReplaceAllString(h, " ")
plain = multiSpaceRe.ReplaceAllString(plain, " ")
return strings.TrimSpace(plain)
}
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