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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,65 @@ | ||
| package render | ||
|
|
||
| import ( | ||
| "bufio" | ||
| "bytes" | ||
| "github.com/Kunde21/markdownfmt/v3" | ||
| "github.com/rs/zerolog/log" | ||
| "github.com/yuin/goldmark/ast" | ||
| astex "github.com/yuin/goldmark/extension/ast" | ||
| "github.com/yuin/goldmark/parser" | ||
| "github.com/yuin/goldmark/text" | ||
| "strconv" | ||
| ) | ||
|
|
||
| type checkboxTransformer struct{} | ||
|
|
||
| func (t *checkboxTransformer) Transform(node *ast.Document, _ text.Reader, _ parser.Context) { | ||
| i := 1 | ||
| err := ast.Walk(node, func(n ast.Node, entering bool) (ast.WalkStatus, error) { | ||
| if entering { | ||
| if _, ok := n.(*astex.TaskCheckBox); ok { | ||
| listitem := n.Parent().Parent() | ||
| listitem.SetAttribute([]byte("data-checkbox-nb"), []byte(strconv.Itoa(i))) | ||
| i += 1 | ||
| } | ||
| } | ||
| return ast.WalkContinue, nil | ||
| }) | ||
| if err != nil { | ||
| log.Err(err) | ||
| } | ||
| } | ||
|
|
||
| func Checkbox(content string, checkboxNb int) (string, error) { | ||
| buf := bytes.Buffer{} | ||
| w := bufio.NewWriter(&buf) | ||
|
|
||
| source := []byte(content) | ||
| markdown := markdownfmt.NewGoldmark() | ||
| reader := text.NewReader(source) | ||
| document := markdown.Parser().Parse(reader) | ||
|
|
||
| i := 1 | ||
| err := ast.Walk(document, func(n ast.Node, entering bool) (ast.WalkStatus, error) { | ||
| if entering { | ||
| if listItem, ok := n.(*astex.TaskCheckBox); ok { | ||
| if i == checkboxNb { | ||
| listItem.IsChecked = !listItem.IsChecked | ||
| } | ||
| i += 1 | ||
| } | ||
| } | ||
| return ast.WalkContinue, nil | ||
| }) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
|
||
| if err = markdown.Renderer().Render(w, source, document); err != nil { | ||
| return "", err | ||
| } | ||
| _ = w.Flush() | ||
|
|
||
| return buf.String(), nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| package render | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "encoding/base64" | ||
| "github.com/yuin/goldmark" | ||
| "github.com/yuin/goldmark/ast" | ||
| "github.com/yuin/goldmark/parser" | ||
| "github.com/yuin/goldmark/renderer" | ||
| "github.com/yuin/goldmark/text" | ||
| "github.com/yuin/goldmark/util" | ||
| ) | ||
|
|
||
| type svgToImg struct{} | ||
|
|
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| func (e *svgToImg) Extend(m goldmark.Markdown) { | ||
| m.Parser().AddOptions(parser.WithInlineParsers( | ||
| util.Prioritized(newInlineSvgParser(), 1), | ||
| )) | ||
| m.Renderer().AddOptions(renderer.WithNodeRenderers( | ||
| util.Prioritized(newInlineSvgRenderer(), 1), | ||
| )) | ||
| } | ||
|
|
||
| type inlineSvgParser struct{} | ||
|
|
||
| func newInlineSvgParser() parser.InlineParser { | ||
| return &inlineSvgParser{} | ||
| } | ||
|
|
||
| func (p *inlineSvgParser) Trigger() []byte { | ||
| return []byte{'<'} | ||
| } | ||
|
|
||
| func (p *inlineSvgParser) Parse(_ ast.Node, block text.Reader, pc parser.Context) ast.Node { | ||
| line, _ := block.PeekLine() | ||
| if bytes.HasPrefix(line, []byte("<svg")) { | ||
| node := ast.NewRawHTML() | ||
| _, savedSegment := block.Position() | ||
| node.Segments.Append(text.NewSegment(savedSegment.Start, savedSegment.Start+len(line))) | ||
| block.Advance(len(line)) | ||
| return node | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func (p *inlineSvgParser) CloseBlock() {} | ||
|
|
||
| type inlineSvgRenderer struct{} | ||
|
|
||
| func newInlineSvgRenderer() renderer.NodeRenderer { | ||
| return &inlineSvgRenderer{} | ||
| } | ||
|
|
||
| func (r *inlineSvgRenderer) RegisterFuncs(reg renderer.NodeRendererFuncRegisterer) { | ||
| reg.Register(ast.KindRawHTML, r.renderSVG) | ||
| } | ||
|
|
||
| func (r *inlineSvgRenderer) renderSVG(w util.BufWriter, source []byte, node ast.Node, entering bool) (ast.WalkStatus, error) { | ||
| if !entering { | ||
| return ast.WalkContinue, nil | ||
| } | ||
| rawHTML := node.(*ast.RawHTML) | ||
| var svgContent []byte | ||
| for i := 0; i < rawHTML.Segments.Len(); i++ { | ||
| segment := rawHTML.Segments.At(i) | ||
| svgContent = append(svgContent, segment.Value(source)...) | ||
| } | ||
| encoded := base64.StdEncoding.EncodeToString(svgContent) | ||
| imgTag := `<img src="data:image/svg+xml;base64,` + encoded + `" />` | ||
| _, _ = w.Write([]byte(imgTag)) | ||
| return ast.WalkContinue, nil | ||
| } |