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Go's semantic import versioning requires v2+ modules to include the major version in the module path. This enables using proper version tags (v3.x.x) instead of pseudo-versions. Updated module path: code.gitcaddy.com/server/v3
62 lines
2.1 KiB
Go
62 lines
2.1 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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"html/template"
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"code.gitcaddy.com/server/v3/modules/markup/internal"
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giteaUtil "code.gitcaddy.com/server/v3/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 := giteaUtil.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>` + giteaUtil.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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