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markup/goldmark: Fix panic on stray attribute nodes

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This commit is contained in:
Bjørn Erik Pedersen
2025-02-17 16:06:54 +01:00
parent 641403f7de
commit 85c1727748
2 changed files with 41 additions and 3 deletions
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11
markup/goldmark/internal/extensions/attributes/attributes.go
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@@ -117,8 +117,9 @@ func (a *transformer) isFragmentNode(n ast.Node) bool {
func (a *transformer) Transform(node *ast.Document, reader text.Reader, pc parser.Context) {
var attributes []ast.Node
var solitaryAttributeNodes []ast.Node
if a.cfg.Attribute.Block {
attributes = make([]ast.Node, 0, 500)
attributes = make([]ast.Node, 0, 100)
}
ast.Walk(node, func(node ast.Node, entering bool) (ast.WalkStatus, error) {
if !entering {
@@ -141,8 +142,7 @@ func (a *transformer) Transform(node *ast.Document, reader text.Reader, pc parse
attributes = append(attributes, node)
return ast.WalkSkipChildren, nil
} else {
// remove attributes node
node.Parent().RemoveChild(node.Parent(), node)
solitaryAttributeNodes = append(solitaryAttributeNodes, node)
}
}
@@ -161,6 +161,11 @@ func (a *transformer) Transform(node *ast.Document, reader text.Reader, pc parse
// remove attributes node
attr.Parent().RemoveChild(attr.Parent(), attr)
}
// Remove any solitary attribute nodes.
for _, n := range solitaryAttributeNodes {
n.Parent().RemoveChild(n.Parent(), n)
}
}
func (a *transformer) generateAutoID(n ast.Node, reader text.Reader, pc parser.Context) {