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package codeblocks
import (
"github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/parser"
"github.com/yuin/goldmark/text"
)
// Kind is the kind of an Hugo code block.
var KindCodeBlock = ast.NewNodeKind("HugoCodeBlock")
// Its raw contents are the plain text of the code block.
type codeBlock struct {
ast.BaseBlock
ordinal int
b *ast.FencedCodeBlock
}
func (*codeBlock) Kind() ast.NodeKind { return KindCodeBlock }
func (*codeBlock) IsRaw() bool { return true }
func (b *codeBlock) Dump(src []byte, level int) {
}
type Transformer struct{}
// Transform transforms the provided Markdown AST.
func (*Transformer) Transform(doc *ast.Document, reader text.Reader, pctx parser.Context) {
var codeBlocks []*ast.FencedCodeBlock
ast.Walk(doc, func(node ast.Node, enter bool) (ast.WalkStatus, error) {
if !enter {
return ast.WalkContinue, nil
}
cb, ok := node.(*ast.FencedCodeBlock)
if !ok {
return ast.WalkContinue, nil
}
codeBlocks = append(codeBlocks, cb)
return ast.WalkContinue, nil
})
for i, cb := range codeBlocks {
b := &codeBlock{b: cb, ordinal: i}
parent := cb.Parent()
if parent != nil {
parent.ReplaceChild(parent, cb, b)
}
}
}
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