Rest of file silently ignored after a certain string literal [PHP]

[Krinkle]

Describe the bug
Rest of file silently ignored after a certain string literal.

Expected behavior

Warnings about a problem, or, for it to work as-is.

Screenshots

Code from https://github.com/wikimedia/mediawiki/blob/2ec4f75dd60ea687f23867d9170fa7e38aa75659/includes/MainConfigSchema.php output at https://doc.wikimedia.org/mediawiki-core/master/php/classMediaWiki_1_1MainConfigSchema.html. About half the file's members are missing from the documentation index.

I've attached an isolated example using a very short file, and a near-empty Doxyfile. In further brief, this is what the issue looks like:

	/**
	 * This works.
	 */
	public const NamespaceAliases = [
		'default' => [],
		'type' => 'map',
	];

	/**
	 * This is and the rest of the file is ignored.
	 */
	public const LegalTitleChars = [
		'default' => ' %!"$&\'()*,\\-.\\/0-9:;=?@A-Z\\\\^_`a-z~\\x80-\\xFF+',
	];

	/**
	 * Gone.
	 */
	public const InterwikiExpiry = [
		'default' => 10800,
	];

To Reproduce
Archive.zip

Version
1.9.1 is affected
1.9.5 is also affected.

Additional context

Looks related in impact to #8569. Might be unrelated in cause, though.

[albert-github]

I don't think the problem has to do with the issue #8569 as that is a comments.
Here the problem looks like to be in the line:

'default' => ' %!"$&\'()*,\\-.\\/0-9:;=?@A-Z\\\\^_`a-z~\\x80-\\xFF+',

where the " is not handled properly in the scanner.l. as when removing the " it is processed properly.

A mean workaround is:

'default' => ' %!"$&\'()*,\\-.\\/0-9:;=?@A-Z\\\\^_`a-z~\\x80-\\xFF+', //"

though in the documentation this will give an incorrect initial value

[albert-github]

I've just pushed a proposed patch, pull request #9521

[albert-github]

Small remark about the issue itself, when specifying a doxygen version and especially with the master version specify the full version from doxygen -v.
I saw the problem still present in 1.9.5 (d3a03e7 so based my work upon this version.

[albert-github]

Code has been integrated in master on GitHub (please don't close the issue as this will be done at the moment of an official release).

[doxygen]

This issue was previously marked 'fixed but not released',
which means it should be fixed in doxygen version 1.9.5.
Please verify if this is indeed the case. Reopen the
issue if you think it is not fixed and please include any additional information
that you think can be relevant (preferably in the form of a self-contained example).