Add YieldReady attributes

Avoid deprecations warnings in Twig >=3.9 by adding the YieldReady attributes to BreakNode and ContinueNode.

Make Twig 3.9 the minimum version for this version and upgrade dependencies and tests.

Add missing type hints

The missing type hints lead to deprecation notices about possibly upcoming type hints in Twig.

Avoid PHP warnings for break & continue

Our previous mechanism of doing a "lookbehind" with twig lead to array key notices/warnings. Instead we now look ahead, which is also valid from the perspective of twig, to determine if more loops are ending than closing, and for break if enough loops are ending to break out of.

v1.5.1: Check if loop exists for continue

Otherwise the variable might not be defined and
lead to a PHP notice.

Lower minimum PHP version

Make this library work with PHP >= 7.2.5 instead of only supporting PHP 7.4 and higher.

Add PHP conversion functions

• intval
• floatval
• strval
• boolval

v1.3

Add strtotime filter

Add more tests known from PHP

Add the variable type tests from PHP as twig tests, and adjust documentation.

Documentation & config improvements

Corrected small details in the documentation to make it clearer, and improved the travis and code quality configuration to make it more future proof.

v1.0

Initial first release