63 lines
1.4 KiB
Go
63 lines
1.4 KiB
Go
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package md2man
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import (
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"fmt"
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"io"
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"os"
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"strings"
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"github.com/russross/blackfriday/v2"
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)
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func fmtListFlags(flags blackfriday.ListType) string {
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knownFlags := []struct {
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name string
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flag blackfriday.ListType
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}{
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{"ListTypeOrdered", blackfriday.ListTypeOrdered},
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{"ListTypeDefinition", blackfriday.ListTypeDefinition},
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{"ListTypeTerm", blackfriday.ListTypeTerm},
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{"ListItemContainsBlock", blackfriday.ListItemContainsBlock},
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{"ListItemBeginningOfList", blackfriday.ListItemBeginningOfList},
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{"ListItemEndOfList", blackfriday.ListItemEndOfList},
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}
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var f []string
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for _, kf := range knownFlags {
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if flags&kf.flag != 0 {
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f = append(f, kf.name)
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flags &^= kf.flag
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}
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}
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if flags != 0 {
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f = append(f, fmt.Sprintf("Unknown(%#x)", flags))
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}
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return strings.Join(f, "|")
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}
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type debugDecorator struct {
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blackfriday.Renderer
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}
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func depth(node *blackfriday.Node) int {
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d := 0
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for n := node.Parent; n != nil; n = n.Parent {
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d++
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}
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return d
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}
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func (d *debugDecorator) RenderNode(w io.Writer, node *blackfriday.Node, entering bool) blackfriday.WalkStatus {
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fmt.Fprintf(os.Stderr, "%s%s %v %v\n",
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strings.Repeat(" ", depth(node)),
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map[bool]string{true: "+", false: "-"}[entering],
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node,
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fmtListFlags(node.ListFlags))
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var b strings.Builder
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status := d.Renderer.RenderNode(io.MultiWriter(&b, w), node, entering)
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if b.Len() > 0 {
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fmt.Fprintf(os.Stderr, ">> %q\n", b.String())
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}
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return status
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}
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