diff options
Diffstat (limited to 'modules/markup/markdown/math/inline_renderer.go')
-rw-r--r-- | modules/markup/markdown/math/inline_renderer.go | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/modules/markup/markdown/math/inline_renderer.go b/modules/markup/markdown/math/inline_renderer.go new file mode 100644 index 0000000000..e4c0f3761d --- /dev/null +++ b/modules/markup/markdown/math/inline_renderer.go @@ -0,0 +1,47 @@ +// Copyright 2022 The Gitea Authors. All rights reserved. +// Use of this source code is governed by a MIT-style +// license that can be found in the LICENSE file. + +package math + +import ( + "bytes" + + "github.com/yuin/goldmark/ast" + "github.com/yuin/goldmark/renderer" + "github.com/yuin/goldmark/util" +) + +// InlineRenderer is an inline renderer +type InlineRenderer struct{} + +// NewInlineRenderer returns a new renderer for inline math +func NewInlineRenderer() renderer.NodeRenderer { + return &InlineRenderer{} +} + +func (r *InlineRenderer) renderInline(w util.BufWriter, source []byte, n ast.Node, entering bool) (ast.WalkStatus, error) { + if entering { + _, _ = w.WriteString(`<code class="language-math is-loading">`) + for c := n.FirstChild(); c != nil; c = c.NextSibling() { + segment := c.(*ast.Text).Segment + value := util.EscapeHTML(segment.Value(source)) + if bytes.HasSuffix(value, []byte("\n")) { + _, _ = w.Write(value[:len(value)-1]) + if c != n.LastChild() { + _, _ = w.Write([]byte(" ")) + } + } else { + _, _ = w.Write(value) + } + } + return ast.WalkSkipChildren, nil + } + _, _ = w.WriteString(`</code>`) + return ast.WalkContinue, nil +} + +// RegisterFuncs registers the renderer for inline math nodes +func (r *InlineRenderer) RegisterFuncs(reg renderer.NodeRendererFuncRegisterer) { + reg.Register(KindInline, r.renderInline) +} |