mirror of
https://github.com/gohugoio/hugo.git
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bfb9613a14
This commit adds the fast and CommonMark compliant Goldmark as the new default markdown handler in Hugo. If you want to continue using BlackFriday as the default for md/markdown extensions, you can use this configuration: ```toml [markup] defaultMarkdownHandler="blackfriday" ``` Fixes #5963 Fixes #1778 Fixes #6355
136 lines
4 KiB
Go
136 lines
4 KiB
Go
// Copyright 2019 The Hugo Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Package mmark converts Markdown to HTML using MMark v1.
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package mmark
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import (
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"github.com/gohugoio/hugo/markup/blackfriday/blackfriday_config"
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"github.com/gohugoio/hugo/markup/converter"
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"github.com/miekg/mmark"
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)
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// Provider is the package entry point.
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var Provider converter.ProviderProvider = provider{}
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type provider struct {
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}
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func (p provider) New(cfg converter.ProviderConfig) (converter.Provider, error) {
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defaultBlackFriday := cfg.MarkupConfig.BlackFriday
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defaultExtensions := getMmarkExtensions(defaultBlackFriday)
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return converter.NewProvider("mmark", func(ctx converter.DocumentContext) (converter.Converter, error) {
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b := defaultBlackFriday
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extensions := defaultExtensions
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if ctx.ConfigOverrides != nil {
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var err error
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b, err = blackfriday_config.UpdateConfig(b, ctx.ConfigOverrides)
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if err != nil {
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return nil, err
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}
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extensions = getMmarkExtensions(b)
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}
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return &mmarkConverter{
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ctx: ctx,
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b: b,
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extensions: extensions,
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cfg: cfg,
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}, nil
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}), nil
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}
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type mmarkConverter struct {
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ctx converter.DocumentContext
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extensions int
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b blackfriday_config.Config
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cfg converter.ProviderConfig
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}
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func (c *mmarkConverter) Convert(ctx converter.RenderContext) (converter.Result, error) {
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r := getHTMLRenderer(c.ctx, c.b, c.cfg)
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return mmark.Parse(ctx.Src, r, c.extensions), nil
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}
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func getHTMLRenderer(
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ctx converter.DocumentContext,
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cfg blackfriday_config.Config,
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pcfg converter.ProviderConfig) mmark.Renderer {
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var (
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flags int
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documentID string
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)
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documentID = ctx.DocumentID
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renderParameters := mmark.HtmlRendererParameters{
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FootnoteAnchorPrefix: cfg.FootnoteAnchorPrefix,
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FootnoteReturnLinkContents: cfg.FootnoteReturnLinkContents,
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}
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if documentID != "" && !cfg.PlainIDAnchors {
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renderParameters.FootnoteAnchorPrefix = documentID + ":" + renderParameters.FootnoteAnchorPrefix
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}
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htmlFlags := flags
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htmlFlags |= mmark.HTML_FOOTNOTE_RETURN_LINKS
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return &mmarkRenderer{
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BlackfridayConfig: cfg,
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Config: pcfg,
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Renderer: mmark.HtmlRendererWithParameters(htmlFlags, "", "", renderParameters),
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}
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}
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func getMmarkExtensions(cfg blackfriday_config.Config) int {
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flags := 0
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flags |= mmark.EXTENSION_TABLES
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flags |= mmark.EXTENSION_FENCED_CODE
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flags |= mmark.EXTENSION_AUTOLINK
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flags |= mmark.EXTENSION_SPACE_HEADERS
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flags |= mmark.EXTENSION_CITATION
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flags |= mmark.EXTENSION_TITLEBLOCK_TOML
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flags |= mmark.EXTENSION_HEADER_IDS
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flags |= mmark.EXTENSION_AUTO_HEADER_IDS
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flags |= mmark.EXTENSION_UNIQUE_HEADER_IDS
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flags |= mmark.EXTENSION_FOOTNOTES
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flags |= mmark.EXTENSION_SHORT_REF
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flags |= mmark.EXTENSION_NO_EMPTY_LINE_BEFORE_BLOCK
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flags |= mmark.EXTENSION_INCLUDE
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for _, extension := range cfg.Extensions {
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if flag, ok := mmarkExtensionMap[extension]; ok {
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flags |= flag
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}
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}
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return flags
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}
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var mmarkExtensionMap = map[string]int{
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"tables": mmark.EXTENSION_TABLES,
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"fencedCode": mmark.EXTENSION_FENCED_CODE,
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"autolink": mmark.EXTENSION_AUTOLINK,
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"laxHtmlBlocks": mmark.EXTENSION_LAX_HTML_BLOCKS,
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"spaceHeaders": mmark.EXTENSION_SPACE_HEADERS,
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"hardLineBreak": mmark.EXTENSION_HARD_LINE_BREAK,
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"footnotes": mmark.EXTENSION_FOOTNOTES,
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"noEmptyLineBeforeBlock": mmark.EXTENSION_NO_EMPTY_LINE_BEFORE_BLOCK,
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"headerIds": mmark.EXTENSION_HEADER_IDS,
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"autoHeaderIds": mmark.EXTENSION_AUTO_HEADER_IDS,
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}
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