This is more or less a exact port of the old stream parser, with the big
notable change being that all configuration-related code lives in a
separate class, CodeMirrorModeMediaWikiConfig. A smaller change is that
closing HTML tags that are marked as errors now have the ending '>'
character highlighted red, when it didn't before.
Integration with other extensions and modes is saved for a future patch
(T348684). This means <nowiki>, <ref> and other extension-supplied
markup is not yet highlighted.
The entry point for WikiEditor integration is now at
ext.CodeMirror.v6.WikiEditor.init.js, which needs to first require the
virtual file set via the DataScript (PHP) class. This can't be
integrated into the CM6 code because it needs to be precompiled before
ResourceLoader can use it (T281781).
Known issues, to be addressed separately:
* No support for TagModes / PluginModes (T348684)
* Identical adjacent tokens produce excess markup (T352917)
* Section headings do not have line-level styling (T351686)
Bug: T348019
Change-Id: I8f8a81f362bed60dea14ecde9487a2b0c89225e8
Add a new $wgCodeMirrorV6 temporary feature flag that when enabled,
will load the 'ext.CodeMirror.v6.WikiEditor' module that is built
against CodeMirror 6. You can also pass in the ?cm6enable=1 query
parameter to force use of CodeMirror 6. This is currently only
implemented for the 2010 editor.
Due to packaging constraints with CodeMirror 6, we now use Webpack to
bundle the files, which are then used by ResourceLoader. This is similar
to what is done for Extension:Popups, MobileFrontend, among other
extensions.
A new generic class CodeMirror can be used on other areas where syntax
highlighting is desirable, but not necessarily for editing (i.e. without
WikiEditor).
This commit merely lays the foundation for CodeMirror 6 and updates
WikiEditor to use it. The actual MediaWiki syntax highlighting will come
with a future commit.
With the new Webpack build, the Gruntfile was removed and the tasks
moved to npm commands.
Bug: T317243
Change-Id: I2239d2449b2db3b638551f847eb4eff1aafa6276
