Commit graph

85 commits

Author SHA1 Message Date
jenkins-bot 05db91241d Merge "CodeMirrorModeMediaWiki: indented table" 2024-08-21 21:09:48 +00:00
jenkins-bot 0b52e3b125 Merge "selenium: Document when, how and why a test is skipped" 2024-08-21 09:57:58 +00:00
John Bolorinos 608c799aa8 selenium: Document when, how and why a test is skipped
Bug: T280652
Change-Id: I065c6ff4f50626904fde2d3e676c4b71d62c43e0
2024-08-19 15:02:18 +02:00
bhsd f23f487028 CodeMirrorModeMediaWiki: indented table
This is a follow-up of the patch 1032770, which misses one type of indented table in the test. It also specifies a unified `cm-mw-indenting` CSS class for all types of table indentation.

Bug: T108454
Change-Id: I77174cf3fa56382add6d80bf2ec7106c9b2cb642
2024-08-15 12:59:13 +08:00
jenkins-bot 75710d6d05 Merge "CodeMirrorModeMediaWiki: various small fixes" 2024-08-15 03:10:01 +00:00
bhsd 925775778a CodeMirror 6 for VE 2017 wikitext editor
Add new temporary ext.CodeMirror.visualEditor.init RL module which
selects the temporary ext.CodeMirror.visualEditor.v6 or non-v6 based on
$wgCodeMirrorV6. This will allow us to deploy CM6 further.

As a result of this work, the core CodeMirror class now has knowledge
of ve.ui.Surface.

Other changes:
* Add Compartment for specialCharsExtension so it can be disabled in VE.
* Add option to mediaWikiLang() to disable template folding.
* Add support for RTL wikis where $wgCodeMirrorRTL is enabled.
* Make CodeMirror.logUsage() and setCodeMirrorPreference() static.
* Fix unit and linting tests.

Some code courtesy of Fandom, GPLv2-or-later; see:
https://github.com/Wikia/mediawiki-extensions-CodeMirror/commit/ef297c48c

Bug: T357482
Change-Id: I15453b33e77e1c1b4d5e5183e41e53d56ff14c3e
2024-08-01 03:15:21 -04:00
bhsd 8ba52cdfcb CodeMirrorModeMediaWiki: various small fixes
This patch fixes a few minor issues in the tokenizer, including indented table (T108454), tag name followed by punctuations (T357720), free external link ending with `~` and `'` (T358643), and Hebrew parser function containing whitespace (T170004).

Bug: T108454
Bug: T357720
Bug: T358643
Bug: T170004
Change-Id: Ib3fff9ea8f9045d885ecfb1dc58c72f5afb8877a
2024-08-01 02:03:17 -04:00
MusikAnimal 7d3482f89e Isolate build step to CM6 library and restructure files to work with RL
CodeMirror 6 requires the use of NPM, but we can still bundle all CM
packages into one file, and then everything else (i.e. our code) is
managed by ResourceLoader as per usual. This makes contribution
considerably easier as we no longer need a build step for each change.

CM5 files are now under resources/legacy, and the CM6 files are moved to
the root of the resources/ directory. Only one file,
codemirror.bundle.js, is managed by Rollup, while everything else is RL.
The Rollup output for now is put under resources/lib/ alongside the CM5
upstream files.

This patch is *mostly* renames of files, along with changing ECMAScript
Module (ESM) syntax into the CommonJS style that ResourceLoader prefers.
We also remove more modern JS syntax (i.e. private class methods) that
we were able to use before because we had a build step with Babel.

This patch should effectively make no user-facing changes, or to the
ResourceLoader modules we offer in Extension:CodeMirror.

Finally, bump version in extension.json to 6, to match the upstream lib,
and add Bhsd as an author :-)

Bug: T368053
Change-Id: Ie258e49f5df8db23a7344ac3c4c9300aaa991042
2024-07-31 22:45:48 -04:00
Fomafix e0dc1c0c32 Use service 'GadgetsRepo' instead of deprecated GadgetRepo::singleton()
The service 'GadgetsRepo' gets injected as optional service.

This change requires a phan dependency on extension Gadgets in
project integration/config in file zuul/parameter_functions.py:
I5052e0c666b7dc7af6061e57001f9feac666e029

Change-Id: Ib405ad79b3c348bed51a8938a6a8f73bd35267d2
2024-07-01 09:32:50 +00:00
Ed Sanders 6958b99f2e build: Update eslint-config-wikimedia to 0.28.2 and autofix
Change-Id: I622f53bf5f56782b7a0529cdc6bb27c1315ff5a0
2024-06-17 13:02:26 +00:00
James D. Forrester 170869190c HooksTest: Swap out use of deprecated getOptionKinds()
Change-Id: I992b102de6fc4e346d27d6a729c5b518a6d2fb3c
2024-06-14 11:34:06 -04:00
jenkins-bot d594143c04 Merge "CM6: Rework ResourceLoader modules" 2024-05-14 01:23:01 +00:00
bhsd 52471d4b8f CodeMirrorModeMediaWiki: one-line definition list
Add highlighting for a special one-line definition list syntax `;a:b`. Also highlight `;a` in bold.

Bug: T170042
Change-Id: Ia3bdf481469368fcb5a7651729dde4b5f3682ed8
2024-04-29 09:44:27 +08:00
MusikAnimal c853e9587d CM6: Rework ResourceLoader modules
Documentation is at https://w.wiki/9kxt

The idea is that modules ending in `.init` imply they initialize
CodeMirror and maniuplate the DOM. The others only export classes for
use in integreations.

In doing so, 'ext.CodeMirror.v6.WikiEditor' now only exports the
CodeMirrorWikiEditor class, while 'ext.CodeMirror.v6.WikiEditor.init'
is added for use on #wpTextbox1 through action=edit.

Bug: T174811
Change-Id: Iec62ac9dc77918904bed886d2d46ccc03e0927f7
2024-04-15 12:40:16 -04:00
MusikAnimal fcb7633eb1 CodeMirrorModeMediaWikiConfig: add missing TagStyle for cm-mw-link
The number sign in `[[Link#Section]]` is supposed to have the class
.cm-mw-link, but didn't because it was missing a TagStyle which actually
gives it the CSS class. Now it does.

Add test case for all known CSS classes.

Bug: T348019
Follow-Up: I8f8a81f362bed60dea14ecde9487a2b0c89225e8
Change-Id: I613f8bead76523fbe1a9f05ed75d81893b8737d3
2024-04-11 14:02:24 -04:00
jenkins-bot b97d51ff51 Merge "CM6: Add syntax highlighting preference for users without WikiEditor" 2024-04-11 14:00:05 +00:00
MusikAnimal f3f46d8e05 CM6: Add syntax highlighting preference for users without WikiEditor
This adds the `ext.CodeMirror.v6.init` ResourceLoader module which
allows use of CodeMirror on `#wpTextbox1` without the use of WikiEditor
(the 'usebetatoolbar' preference). In order for users to opt-in to using
CodeMirror, we make the existing 'usecodemirror' option into a visible
preference. In addition, with two preferences related to CodeMirror, we
group them under a new heading 'Syntax highlighting'. More preferences
may be added later to this section following T359498.

When WikiEditor is not enabled, the layout of the action=edit page has
the textarea as a sibling to other visible content, like `.editOptions`.
Because of this, we can't simply append the CodeMirror DOM to the parent
like we were before, as that would put the visible editor beneath the
edit summary, Publish button, etc. Instead we rework the CodeMirror to
first add a wrapper around the textarea and use that as the parent. This
way, `.cm-editor` is always in the same place in the DOM as the native
textarea.

Line wrapping and focus/blur events are also moved to CodeMirror, as
these are needed when not using WikiEditor.

Bug: T190108
Change-Id: I4bc069e0d398aa7088e4f50bbd0ddda458b289c3
2024-04-09 22:05:20 -04:00
MusikAnimal e1f397f048 CodeMirrorBidiIsolation: fix for when the tag is the first element
This fixes a careless error introduced in I1338afeefa where we don't do
a strict equality test and thus if the tag is the first element (at
position 0), the following bracket is also treated as the start
position. Here we simply do a strict equality test against null (the
reset value), and viola, several issues are fixed.

Bug: T358804
Change-Id: I86021d363ecc33a7551bc887439dc1902914026f
2024-04-09 22:04:45 -04:00
MusikAnimal ca02360228 CM6: Switch to using Rollup instead of Webpack; make RL-compatible
See https://w.wiki/9Twh for example usage with ResourceLoader.

Webpack is retired in favor of Rollup, which allows us to convert the
ECMAScript Modules into CommonJS modules for use by ResourceLoader.
We now have a file in dist/ for each RL module that we want to offer,
including the 'lib' module which includes the CM library itself.

Because Rollup has no knowledge of the ResourceLoader module registry,
the generated output requires other modules via relative path, when it
needs to be the RL module name. To get around this, we do a crude
find/replace after the files are generated. Hacky, but necessary to make
CodeMirror usable by gadgets and scripts that don't also want
WikiEditor.

Add new RL modules 'ext.CodeMirror.v6.lib' (vendor code) and
'ext.CodeMirror.v6' (the main CodeMirror class, sans WikiEditor).

Clean up extension.json, listing the v6 modules beneath the old ones.

Bug: T214989
Change-Id: Ide716247e545cf2bdd977bea645729564ebbe6e2
2024-03-19 22:48:52 -04:00
MusikAnimal 00f947e97f CM6: move bidiIsolation to be part of CodeMirrorModeMediaWiki
The extension is custom built for MediaWiki (i.e. handling of extension
tags like <ref> that aren't HTML tags), so it only makes sense to bundle
it as part of the MediaWiki language mode.

Resultantly, we can no longer check the direction of the textarea where
we enable bidi isolation, because the language mode should have no
knowledge of the textarea. Instead we offer a `config` object (akin to
other language modes offered by CodeMirror), with currently only one
option: `bidiIsolation`. It is the responsibility of the caller to
enable this where desired.

Also make templateFolding and CodeMirrorModeMediaWiki use
`export default` since they both only export one thing.

This commit is in preparation for Ide716247e5, where we need bidi
isolation separated from the CodeMirror class due to its dependency on
CodeMirrorModeMediaConfig.

Bug: T358804
Bug: T214989
Change-Id: If3211bd259bd7833919a627faabd86ae7aa81b53
2024-03-19 22:48:34 -04:00
MusikAnimal b18ded0a13 CM6: move more Extensions to CodeMirror so they don't require WikiEditor
We want CodeMirror to be usable outside WikiEditor. This commit moves
the more critical extensions from the CodeMirrorWikiEditor class to the
parent CodeMirror class.

The linked tasks are only broadly related. In Ide716247e5 we will
introduce a ResourceLoader module that makes CodeMirror usable on any
textarea.

Bug: T214989
Bug: T190108
Change-Id: Ib199cf700c3235812f7c9a9bcb3703917f0887de
2024-03-19 22:48:17 -04:00
MusikAnimal d1863e4d0b tests: disable flaky CM5 bracket matching test for 2017 editor
This legacy CM5 test has always been flaky and is now consistently
failing. It can be reinstated with T357482, or not at all, seeing as
bracket matching is a core extension in CodeMirror 6 and probably
doesn't need a dedicated test on top of what's upstream.

Change-Id: I77362c1c47be902cc888682aae926154470f1a56
2024-03-19 22:47:23 -04:00
MusikAnimal 911b2d3d46 CodeMirror: add 'dir' and 'lang' attrs to .cm-editor and not .cm-content
Before we were adding these attributes to .cm-content, which didn't
encompass the gutter (line numbers). When you edited a LTR page in a RTL
interface language (or vice versa), the line gutter appeared on the
wrong side, which caused the cursor to be misaligned.

This commit fixes this by applying the direction and language to the
entire editor (.cm-editor), and not just .cm-content. However this means
the search panel could be in the page language when it should be the
interface language. This will be addressed in a follow-up patch.

Other attributes like 'class' that are copied from the textarea must
remain on .cm-content, because the parent .cm-scroller would otherwise
override them.

Bug: T359589
Change-Id: Id805944231fd75c1dc1c336e3cd4c7bc5c42c036
2024-03-13 11:19:16 -04:00
MusikAnimal aa3876a97e CodeMirrorWikiEditor: Remove hack to fix height in WikiEditor
WikiEditor's ResizingDragBar makes the editor resizable, so we need to
set the height to 100%. This was attempted in Ib49d1d9e71 and
I4deeda192b but both ultimately suffer from race conditions. Instead
we're setting the height in WikiEditor with Ia5e9767e08.

The heightExtension in the CodeMirror class still remains, in the event
a subclass wishes to override the default behaviour in CM directly and
not with CSS.

Bug: T357794
Depends-On: Ia5e9767e0814eac29d58bc0d9c1023344a29dd84
Change-Id: Ic55dd098d70fd173ddee7100e392b889ee6ddd08
2024-03-13 11:18:20 -04:00
MusikAnimal d927b01ec1 CodeMirror: fix implementation of jQuery.textSelection encapsulate
In Idc0abb64eb we added support for 'encapsulateSelection' and multiple
cursors, but broke other jQuery.textSelection functionality in the
process. In this commit, we move the logic to a dedicated class, and
more fully and accurately mimic the native implementation.

All functionality in WikiEditor should now be supported.

Bug: T359671
Follow-Up: Idc0abb64eb036fa4a60382aca401d1dba1722405
Change-Id: I9b947d80616bd4c4372b981b2271a281d1fc0252
2024-03-11 17:38:20 -04:00
MusikAnimal 63cd3e4ff8 CodeMirror 6: show wikitext highlighting on protected pages
It is necessary to have a way to toggle CodeMirror on and off, so we use
WikiEditor and hide all other buttons. This is more costly than loading
just vanilla CodeMirror, but it ensures a consistent experience with
pages that are editable, with the toggle button in the familiar place.
At a later time, WikiEditor may be updated to better support read only
pages in a lightweight fashion (T188817).

Bug: T301615
Change-Id: I8ea7597d07ff60a3f58ba306d2d6d12d3ec08b16
2024-03-11 17:35:20 -04:00
MusikAnimal 18a92122ef CodeMirror 6: Add bidi isolation to HTML tags
HTML tags and similar markup may appear jumbled on RTL pages due to the
standard algorithm used for character placement. With this patch, we
detect all tags (HTML or MediaWiki-supplied) and wrap them with
<span class=cm-bidi-isolate>. This CSS class forces the content to be
LTR, making the tags easier to work with on RTL pages.

Bug: T358804
Change-Id: I1338afeefa16102d5cc8fd6c8a236c144e5cf81f
2024-03-11 17:34:41 -04:00
MusikAnimal 894d2c33e9 Hooks: further limit where CodeMirror RL modules are loaded
This fixes a preexisting issue where we were loading CodeMirror on pages
where it would never be used. We use the EditPage__showEditForm_initial
hook so we don't need to check the action.

This commit introduces the CodeMirrorContentModels extension attribute,
used to limit where CodeMirror is loaded automatically. By default,
this includes only CONTENT_MODEL_WIKITEXT ('wikitext'). This extension
attribute serves as a stepping stone to CM being used on content types
other than just wikitext.

Bug: T359206
Change-Id: Ibefc028c5ef6275393202fe773c26162715e1bca
2024-03-11 17:30:10 -04:00
jenkins-bot 829ad8e79f Merge "Use namespaces class MediaWiki\Context\RequestContext" 2024-03-08 20:26:44 +00:00
jenkins-bot 985f2991e5 Merge "CodeMirror 6 template folding" 2024-03-08 02:38:43 +00:00
Fomafix f706c0dc99 Use namespaces class MediaWiki\Context\RequestContext
This change depends on I4dbef138fd0110c14c70214282519189d70c94fb
included in MediaWiki 1.42.

Change-Id: I37b5bbe06dfb99b5ff819188a1b76ad6c669ecda
2024-03-07 20:05:27 +00:00
jenkins-bot 210f78aa90 Merge "Avoid wgTitle in tests" 2024-03-07 19:21:51 +00:00
bhsd 506d998767 CodeMirror 6 template folding
This patch adds an icon displayed above the cursor inside a template. By clicking it, the template parameters become hidden and replaced by three dots, while the template name remains visible. Clicking the dots will unfold the template. New key bindings include fold (Ctrl-Shift-[/Cmd-Alt-[), unfold (Ctrl-Shift-]/Cmd-Alt-]) and unfoldAll (Ctrl-Alt-]).

Bug: T30684
Change-Id: I631fe0ecf21d0a80306bd40d66d22478a1aefe58
2024-03-07 13:47:47 +08:00
Fomafix b4b1004499 Avoid wgTitle in tests
Change-Id: I1323b9b9542598d33f7150cc0d468e581b0d8c09
2024-03-06 15:59:33 +00:00
MusikAnimal 321d462311 CodeMirrorModeMediaWikiConfig: add missing tokens for nested templates
Nested templates have background shading relative to their level of
nesting. See the newly added test case as an example. Without these
tokens registered, the styling won't show properly.

Since these tokens aren't referenced directly by the StreamParser, nor
do they have a parent Tag, we don't need them as constants like we do
for other tokens.

Bug: T348019
Change-Id: I87bb99d538344957987b2bd88f902a1427a36522
2024-03-05 00:34:34 -05:00
MusikAnimal 7002bc434d CM6: use textarea height unless WikiEditor's Realtime Preview is loaded
The ResizingDragBar makes the editor resizable, so we need to set the
CodeMirror height to 100%. This only happens when the Realtime Preview
module is loaded.

This fixes a critical issue introduced by I4deeda192b that caused blank
renderings when scrolling large documents.

Bug: T357794
Follow-Up: I4deeda192bdc233101ba61739a636f8fd143c1de
Change-Id: Ib49d1d9e71df3653b13dfd44a8efedbf1ef9cd93
2024-03-04 17:41:04 -05:00
Fomafix c3df98cff6 Remove $this->setService( 'UserOptionsLookup', ... ) in tests
The mocked service UserOptionsLookup is already injected via contructor
to Hooks.

Change-Id: I013aa6f62bd50802889a0037721ba06902d1a18e
2024-03-04 20:04:02 +00:00
MusikAnimal 657ba3648a CodeMirror: sync text editor font preference
This only effects users of the CM6 CodeMirror class, so doesn't (yet)
solve the issue for the 2017 editor which is partly what T245568 is for.

I135bf0f7bf supposedly fixed it for the 2010 editor, but that fix
apparently doesn't work anymore, and thus those styles have simply been
removed (the .CodeMirror element is never a child of the edit font
classes).

This change also incidentally fixes font sizing issues by ensuring the
styles are applied to `.cm-content` and not `.cm-editor`. This prior bug
was most notably visible in other skins such as Timeless and Monobook.
The colorblind CSS class is now applied in the same way using the
EditorView.contrentAttributes facet.

Bug: T245568
Change-Id: Iaaf65e47ce8ed9303147aadc7e18a9aaa051405b
2024-02-25 23:08:38 -05:00
MusikAnimal 26d5023bb7 CodeMirror: partially implement $.textSelection 'encapsulateSelection'
Popular extensions like Charinsert use this method to wrap text around a
selection. This patch adds support for multiple selections in CM6.

Some options to encapsulateSelection do not yet have explicit support
here, such as 'peri', but it's unclear if they are truly needed.

Bug: T211205
Change-Id: Idc0abb64eb036fa4a60382aca401d1dba1722405
2024-02-16 04:42:14 +00:00
MusikAnimal 15215cb81f Utilize __non_webpack_require__ so we can source virtual files
This removes the need for a separate init module. Using
`__non_webpack_require__` will force Webpack to compile as `require`
instead of `__webpack_require__`, allowing ResourceLoader to inject the
virtual file.

Change-Id: I00203f4665b49cb92ee9db356445fdc2ab17fc5f
2024-02-14 08:47:21 -05:00
MusikAnimal 75f5c9b2be CodeMirror: highlight special characters and non-breaking spaces
The highlightSpecialChars() should act mostly identical to CM5. An
example is the soft hyphen (U+00AD). These are highlighted as a red dot
because they are non-printable characters.

The i18n may seem like overkill, but CM6 would otherwise actually print
the same message in plain English and without a way to localize it.

Per request at T181677, we also highlight non-breaking space and the
narrow non-breaking space. These are shown as a faint gray dot, to match
CM6's highlightWhiteSpace() extension. That extension isn't used here
because it would also highlight normal spaces, which we don't want.

Bug: T181677
Change-Id: Iac1a8cf78e4cd0a27abc917f4b70bdfbaf86252a
2024-02-13 14:57:06 -05:00
bhsd 8a3d203a03 fix attributes of table caption and table cell
Merging `inTableCaptioin` method into `eatTableRow` with an additional parameter so that table caption attributes can be respected. This patch also distinguishes double pipes (`||`) which start a new table cell and single pipe (`|`) which ends the attributes.

Bug: T324374
Change-Id: If2d4600067c587fe0b6a6edb332fd4e55abec607
2024-01-19 10:53:51 +08:00
bhsd 5235dbb322 fix protocol-like words not as URL protocol
A valid URL, whether free or not, requires at least 1 character after the protocol.

Bug: T309880
Change-Id: I972c4f0ea4273a3f50db17376af808770f28df0b
2024-01-19 10:27:55 +08:00
bhsd b4e762bd99 improve treatment of lists at start of line
In the parser, '*', '#', ';' and ':' can actually become nested lists (<ul>, <ol>, <dt> and <dd>) in any possible combinations. This patch does not yet support the `; dt : dd` syntax.

This patch also fixes the 'Unknown highlighting tag undefined' warning.

Bug: T184272
Bug: T170042
Change-Id: I13cc55fadbc9b03fd7c70eab123f7e378d52898d
2024-01-19 00:36:54 +08:00
Daimona Eaytoy 1a038072b4 Update tests for PHPUnit 9.6
- Avoid withConsecutive()

Bug: T342110
Change-Id: I32c7d465942c55608891165d79d22ae6e31a5aaf
2024-01-17 17:21:49 +01:00
MusikAnimal 380ec9d1ce CodeMirrorModeMediaWiki: add support for mediawiki TagModes
This is essentially the CM6-style variant of the same code used for
TagModes in CM5. The big difference is in CM6, every tag must be
registered in order to be used. We do this dynamically when
CodeMirrorModeMediaWiki is intantiated. As of this patch only tags
that contain mediawiki (formerly 'text/mediawiki') are supported,
such as <ref>.

The CM6 tag registration surfaced an old bug, now fixed: when using
different capitalization on extension-supplied tags, the CSS class name
used to match that. I.e. <REF> would produce .cm-mw-ext-REF, when it
should be .cm-mw-ext-ref

Also remove the old line-level styles. With I17b1f0b7a6, line-level
styling was added for section headings. Doing the same for tags like
<nowiki> and <pre> isn't as important, and can be addressed later or
not at all.

Add test case for extension tag with no supplied TagMode

Other minor cleanup, including removing old commented out code

Bug: T348684
Change-Id: Ibfff1fc6eacc42b95f557abb40774a65c46ba373
2024-01-16 15:30:22 -05:00
bhsd 9826cc906f Line-level styling for section heading
This is merely a CSS hack which seems to work well for me. The only required JS change is to wrap plain text in section heading in a span, the CSS class of which is unused.

Bug: T351686
Change-Id: I17b1f0b7a6fdf9c090309f558349a06ccec4257f
2024-01-09 02:35:51 +00:00
MusikAnimal b70413441e CodeMirrorModeMediaWiki: add highlighting for <nowiki> and <pre>
Since <nowiki> and <pre> ignore wikitext, the CM5 implementation
cleverly leveraged the tagModes system so that only HTML entities are
processed. We're effectively doing the same here, only we don't need to
register them as proper TagModes. A FIXME is left to remove the entries
from extension.json after the CM6 upgrade is complete.

Note that line-level styling is still missing, see T351686#9431669.
As a result, multi-line content in a <nowiki> or <pre> may emit JS
warnings, but this is expected until T351686 is resolved.

Bug: T348684
Change-Id: Ia834c4609faf38af3c8f6b791544a7441b5cfb0a
2024-01-03 21:54:35 -05:00
MusikAnimal bbd142c118 mode.mediawiki: rename mnemonic to html-entity and deprecate variants
This removes treating an HTML entity in a template name as a separate
token, and thus deprecates the .cm-mw-template-name-mnemonic CSS class.

In CM6 we have to register tokens for them to show, and this one seems
of little use to begin with. HTML entities should always be styled as a
such, especially in page titles where they are treated post-processing.
i.e. [[&#47;dev/null]] links to [[/dev/null]].

The rename to .cm-html-entity and associated code is to better reflect
what it is. $rarr; is a mnemonic form while &#x2f; is not, but both are
entities.  Deprecations are noted in the README, with the old classes
to be removed later after on-wiki usage has been updated.

Bug: T348019
Change-Id: I1184fb5d7d37084c80af1abd5f3cb5f2091b085c
2024-01-03 21:48:34 -05:00
MusikAnimal c1cd9dabf3 CodeMirrorModeMediaWiki: don't detect additional { as template name
This merely ports over Ica3fb110ce and Id5e50c2baf to the CM6
stream parser. Also port the test that was added in I7907b4743b

Bug: T292967
Bug: T348019
Follow-Up: Ica3fb110cebb5650f66be321b533ed030e2c9698
Change-Id: I54b1624131ea63f403ebc1f6f900556ca868b7f4
2024-01-03 19:14:41 +00:00