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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
56 lines
1.6 KiB
Go
56 lines
1.6 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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"bytes"
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"code.gitea.io/gitea/modules/markup/internal"
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"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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// InlineRenderer is an inline renderer
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type InlineRenderer struct {
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renderInternal *internal.RenderInternal
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}
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// NewInlineRenderer returns a new renderer for inline math
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func NewInlineRenderer(renderInternal *internal.RenderInternal) renderer.NodeRenderer {
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return &InlineRenderer{renderInternal: renderInternal}
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}
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func (r *InlineRenderer) renderInline(w util.BufWriter, source []byte, n ast.Node, entering bool) (ast.WalkStatus, error) {
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if entering {
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extraClass := ""
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if _, ok := n.(*InlineBlock); ok {
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extraClass = "display "
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}
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_ = r.renderInternal.FormatWithSafeAttrs(w, `<code class="language-math %sis-loading">`, extraClass)
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for c := n.FirstChild(); c != nil; c = c.NextSibling() {
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segment := c.(*ast.Text).Segment
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value := util.EscapeHTML(segment.Value(source))
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if bytes.HasSuffix(value, []byte("\n")) {
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_, _ = w.Write(value[:len(value)-1])
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if c != n.LastChild() {
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_, _ = w.Write([]byte(" "))
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}
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} else {
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_, _ = w.Write(value)
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}
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}
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return ast.WalkSkipChildren, nil
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}
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_, _ = w.WriteString(`</code>`)
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return ast.WalkContinue, nil
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}
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// RegisterFuncs registers the renderer for inline math nodes
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func (r *InlineRenderer) RegisterFuncs(reg renderer.NodeRendererFuncRegisterer) {
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reg.Register(KindInline, r.renderInline)
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reg.Register(KindInlineBlock, r.renderInline)
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}
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