Add modifiers to get information from filepath: dirname, basename, fi…

[kudashevs]

What does it do?

Adds group of modifiers to work with placeholders contain filepath. This modifiers allow:

• dirname - get directory name only (without filename)
• basename - get file basename (filename with extension)
• filename - get filename (filename without extension)
• extension - get file extension

In fact this is a wrapper for PHP's pathinfo() function.

Why is it needed?

Using modifiers more convenient and simple way to work with placeholders contain filepath.

Related issue(s)/PR(s)

PR #14194 updated to clean merge with 3.x branch.

[JoshuaLuckers]

One thing to make this PR even better: is it possible to add some tests for the new modifiers in modOutputFilterTest?
https://github.com/modxcms/revolution/blob/3.x/_build/test/Tests/Model/Filters/modOutputFilterTest.php

[kudashevs]

One thing to make this PR even better: is it possible to add some tests for the new modifiers in modOutputFilterTest?
https://github.com/modxcms/revolution/blob/3.x/_build/test/Tests/Model/Filters/modOutputFilterTest.php

Done. Since the related files have not changed since the last commit push it force :)

[Mark-H]

Hey @kudashevs, have you signed the CLA before? Please do via https://develop.modx.com/contribute/cla/ or let me know what username you used. Thanks!

[kudashevs]

Hey @kudashevs, have you signed the CLA before? Please do via https://develop.modx.com/contribute/cla/ or let me know what username you used. Thanks!

@Mark-H i didn't sign it before. Just signed it :)

[Mark-H]

Thanks :)