This prunes stores and configurations that are empty arrays, as stores are expected to be JSON objects.
By not printing empty configurations, less redundant data is serialized into the HTML.
Props jonsurrell, luisherranz, darerodz, gziolo, swissspidy.
Fixes#60761.
Built from https://develop.svn.wordpress.org/trunk@57841
git-svn-id: http://core.svn.wordpress.org/trunk@57342 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Use a priority of 100 to ensure that other filters can add additional directives before the processing starts.
This way, directives will be processed even if the `$parsed_block` variable is edited by a filter.
Props cbravobernal, swissspidy, flixos90, joemcgill, gziolo.
Fixes#60743.
Built from https://develop.svn.wordpress.org/trunk@57826
git-svn-id: http://core.svn.wordpress.org/trunk@57327 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Short-circuits directive processing when the markup does not actually contain any `data-wp-*` attributes.
This reduces function calls and memory usage for the best case scenario due to not involving `WP_HTML_Tag_Processor`.
Props joemcgill, swissspidy, gziolo, cbravobernal, flixos90.
Fixes#60749.
Built from https://develop.svn.wordpress.org/trunk@57824
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Increases clarity about where the function belongs to, bringing it in line with other related functions.
After initially merging this change in [57742] and reverting it in [57743], this reintroduces it now that the Gutenberg packages have been updated accordingly in [57760].
Props swissspidy, gziolo, cbravobernal, youknowriad, ankitmaru, westonruter, luisherranz, darerodz.
Fixes#60575.
Built from https://develop.svn.wordpress.org/trunk@57762
git-svn-id: http://core.svn.wordpress.org/trunk@57263 1a063a9b-81f0-0310-95a4-ce76da25c4cd
