TYPO3.Flow

The ArrayImplementation of the TYPO3.TypoScript package contains a clever mechanism to sort arrays depending on a "position string".
This functionality should be moved to the TYPO3.Flow package to allow this kind of flexible sorting in other places.

Supported position strings are:

start (<weight>):

start
start 123

end (<weight>):

end
end 123

before <key> (<weight>):

before foo
before foo 123

after <key> (<weight>):

after foo
after foo 123

<numerical-order>:

123

This feature is especially useful for sorting configuration options with multiple sources.
Example:

 1SomeSetting:
 2  'key1':
 3    foo: 'bar'
 4    position: 'start'
 5  'key2':
 6    foo: 'baz'
 7    position: 'after key1'
 8  'key3':
 9    foo: 'quux'
10    position: 'end'