RFR: JDK-8298405: Support Markdown in Documentation Comments [v22]

[Pavel Rappo]

On Wed, 7 Feb 2024 18:14:24 GMT, Jonathan Gibbons <jjg at openjdk.org> wrote:

>> Please review a patch to add support for Markdown syntax in documentation comments, as described in the associated JEP.
>> 
>> Notable features:
>> 
>> * support for `///` documentation comments in `JavaTokenizer`
>> * new module `jdk.internal.md` -- a private copy of the `commonmark-java` library
>> * updates to `DocCommentParser` to treat `///` comments as Markdown
>> * updates to the standard doclet to render Markdown comments in HTML
>
> Jonathan Gibbons has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 28 commits:
> 
>  - Merge remote-tracking branch 'upstream/master' into 8298405.doclet-markdown-v3 # Please enter a commit message to explain why this merge is necessary, # especially if it
>    merges an updated upstream into a topic branch. # # Lines starting with '#' will be ignored, and an empty message aborts # the commit.
>  - add test case contributed by @lahodaj
>  - initial fix for source offset problem
>  - remove unused imports
>  - First pass at remove DocCommentTransformer from the public API.
>    
>    It is still declared internally, and installed by default, using the service-provider mechanism.
>    If the standard impl is not available, an identity transformer is used.
>  - updates for "first sentence" issues and tests
>  - add info about provenance of `jdk.internal.md` module
>  - MarkdownTransformer: tweak doc comments
>  - MarkdownTransformer: change `Lower.replaceIter` to be `private final`
>  - MarkdownTransformer: use suggested text for using streams
>  - ... and 18 more: https://git.openjdk.org/jdk/compare/18e24d06...63dd8bf4

Jon, here are a few reminders and misc comments.

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PR Review: https://git.openjdk.org/jdk/pull/16388#pullrequestreview-1846272367