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60 lines
1.6 KiB
Go
60 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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"code.gitea.io/gitea/modules/markup/internal"
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giteaUtil "code.gitea.io/gitea/modules/util"
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"github.com/yuin/goldmark"
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"github.com/yuin/goldmark/parser"
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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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type Options struct {
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Enabled bool
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ParseDollarInline bool
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ParseDollarBlock bool
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ParseSquareBlock bool
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}
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// Extension is a math extension
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type Extension struct {
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renderInternal *internal.RenderInternal
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options Options
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}
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// NewExtension creates a new math extension with the provided options
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func NewExtension(renderInternal *internal.RenderInternal, opts ...Options) *Extension {
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opt := giteaUtil.OptionalArg(opts)
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r := &Extension{
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renderInternal: renderInternal,
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options: opt,
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}
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return r
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}
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// Extend extends goldmark with our parsers and renderers
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func (e *Extension) Extend(m goldmark.Markdown) {
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if !e.options.Enabled {
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return
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}
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inlines := []util.PrioritizedValue{util.Prioritized(NewInlineBracketParser(), 501)}
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if e.options.ParseDollarInline {
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inlines = append(inlines, util.Prioritized(NewInlineDollarParser(), 502))
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}
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m.Parser().AddOptions(parser.WithInlineParsers(inlines...))
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m.Parser().AddOptions(parser.WithBlockParsers(
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util.Prioritized(NewBlockParser(e.options.ParseDollarBlock, e.options.ParseSquareBlock), 701),
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))
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m.Renderer().AddOptions(renderer.WithNodeRenderers(
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util.Prioritized(NewBlockRenderer(e.renderInternal), 501),
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util.Prioritized(NewInlineRenderer(e.renderInternal), 502),
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))
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}
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