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zeekayandHanzo Dev
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Source files keep their SPDX-License-Identifier and Hanzo copyright line; the Gitea, Gogs and LFS Test Server copyrights they used to repeat now live once in NOTICE, alongside LICENSE. The header lint accepts any copyright line above the SPDX line, so it no longer demands an upstream one. Co-authored-by: Hanzo Dev <[email protected]>
62 lines
2.1 KiB
Go
62 lines
2.1 KiB
Go
// Copyright 2026 Hanzo AI, Inc. 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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"html/template"
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"github.com/hanzoai/git/modules/markup/internal"
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forgeUtil "github.com/hanzoai/git/modules/util"
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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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// Block render output:
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// <pre class="code-block is-loading"><code class="language-math display">...</code></pre>
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//
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// Keep in mind that there is another "code block" render in "func (r *GlodmarkRender) highlightingRenderer"
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// "highlightingRenderer" outputs the math block with extra "chroma" class:
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// <pre class="code-block is-loading"><code class="chroma language-math display">...</code></pre>
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//
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// Special classes:
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// * "is-loading": show a loading indicator
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// * "display": used by JS to decide to render as a block, otherwise render as inline
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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 := range l {
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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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codeHTML := forgeUtil.Iif[template.HTML](n.Inline, "", `<pre class="code-block is-loading">`) + `<code class="language-math display">`
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_, _ = w.WriteString(string(r.renderInternal.ProtectSafeAttrs(codeHTML)))
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r.writeLines(w, source, n)
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} else {
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_, _ = w.WriteString(`</code>` + forgeUtil.Iif(n.Inline, "", `</pre>`) + "\n")
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}
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return gast.WalkContinue, nil
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}
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