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8a20fba8eb
Remove unmaintainable sanitizer rules. No need to add special "class" regexp rules anymore, use RenderInternal.SafeAttr instead, more details (and examples) are in the tests
47 lines
1.4 KiB
Go
47 lines
1.4 KiB
Go
// Copyright 2022 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package math
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import (
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"code.gitea.io/gitea/modules/markup/internal"
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gast "github.com/yuin/goldmark/ast"
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"github.com/yuin/goldmark/renderer"
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"github.com/yuin/goldmark/util"
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)
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// BlockRenderer represents a renderer for math Blocks
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type BlockRenderer struct {
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renderInternal *internal.RenderInternal
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}
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// NewBlockRenderer creates a new renderer for math Blocks
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func NewBlockRenderer(renderInternal *internal.RenderInternal) renderer.NodeRenderer {
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return &BlockRenderer{renderInternal: renderInternal}
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}
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// RegisterFuncs registers the renderer for math Blocks
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func (r *BlockRenderer) RegisterFuncs(reg renderer.NodeRendererFuncRegisterer) {
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reg.Register(KindBlock, r.renderBlock)
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}
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func (r *BlockRenderer) writeLines(w util.BufWriter, source []byte, n gast.Node) {
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l := n.Lines().Len()
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for i := 0; i < l; i++ {
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line := n.Lines().At(i)
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_, _ = w.Write(util.EscapeHTML(line.Value(source)))
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}
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}
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func (r *BlockRenderer) renderBlock(w util.BufWriter, source []byte, node gast.Node, entering bool) (gast.WalkStatus, error) {
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n := node.(*Block)
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if entering {
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_ = r.renderInternal.FormatWithSafeAttrs(w, `<pre class="code-block is-loading"><code class="chroma language-math display">`)
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r.writeLines(w, source, n)
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} else {
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_, _ = w.WriteString(`</code></pre>` + "\n")
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}
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return gast.WalkContinue, nil
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}
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