// Copyright 2024 The Gitea Authors. All rights reserved.// SPDX-License-Identifier: MIT package markdown import (	"bytes"	"fmt"	"strings" 	"forgejo.org/modules/markup"	mdutil "forgejo.org/modules/markup/markdown/util" 	"github.com/yuin/goldmark/ast"	"github.com/yuin/goldmark/renderer/html"	"github.com/yuin/goldmark/text"	"github.com/yuin/goldmark/util") // renderCodeSpan renders CodeSpan elements (like goldmark upstream does) but also renders ColorPreview elements.// See #21474 for referencefunc (r *HTMLRenderer) renderCodeSpan(w util.BufWriter, source []byte, n ast.Node, entering bool) (ast.WalkStatus, error) {	if entering {		if n.Attributes() != nil {			_, _ = w.WriteString("<code")			html.RenderAttributes(w, n, html.CodeAttributeFilter)			_ = w.WriteByte('>')		} else {			_, _ = w.WriteString("<code>")		}		for c := n.FirstChild(); c != nil; c = c.NextSibling() {			switch v := c.(type) {			case *ast.Text:				segment := v.Segment				value := segment.Value(source)				if bytes.HasSuffix(value, []byte("\n")) {					r.Writer.RawWrite(w, value[:len(value)-1])					r.Writer.RawWrite(w, []byte(" "))				} else {					r.Writer.RawWrite(w, value)				}			case *ColorPreview:				_, _ = fmt.Fprintf(w, `<span class="color-preview" style="background-color: %v"></span>`, string(v.Color))			}		}		return ast.WalkSkipChildren, nil	}	_, _ = w.WriteString("</code>")	return ast.WalkContinue, nil} func (g *ASTTransformer) transformCodeSpan(_ *markup.RenderContext, v *ast.CodeSpan, reader text.Reader) {	colorContent := mdutil.Text(v, reader.Source())	if matchColor(strings.ToLower(string(colorContent))) {		v.AppendChild(v, NewColorPreview(colorContent))	}}