← All changes | back/Libraries/Sabberworm/CSS/src/Property/KeyframeSelector.php +47 -0 10.2.0 → 11.1.0 View file →

		@@ -1,0 +1,47 @@
	1	+<?php
	2	+
	3	+declare(strict_types=1);
	4	+
	5	+namespace AcyMailing\Libraries\Sabberworm\CSS\Property;
	6	+
	7	+class KeyframeSelector extends Selector
	8	+{
	9	+ /**
	10	+ * This differs from the parent class:
	11	+ * - comma is not allowed unless escaped or quoted;
	12	+ * - percentage value is allowed by itself.
	13	+ *
	14	+ * @var non-empty-string
	15	+ *
	16	+ * @internal since 8.5.2
	17	+ */
	18	+ public const SELECTOR_VALIDATION_RX = '/
	19	+ ^(
	20	+ (?:
	21	+ # any sequence of valid unescaped characters, except quotes
	22	+ [a-zA-Z0-9\\x{00A0}-\\x{FFFF}_^$|*=~\\[\\]()\\-\\s\\.:#+>]++
	23	+ |
	24	+ # one or more escaped characters
	25	+ (?:\\\\.)++
	26	+ |
	27	+ # quoted text, like in `[id="example"]`
	28	+ (?:
	29	+ # opening quote
	30	+ ([\'"])
	31	+ (?:
	32	+ # sequence of characters except closing quote or backslash
	33	+ (?:(?!\\g{-1}|\\\\).)++
	34	+ |
	35	+ # one or more escaped characters
	36	+ (?:\\\\.)++
	37	+ )*+ # zero or more times
	38	+ # closing quote or end (unmatched quote is currently allowed)
	39	+ (?:\\g{-1}|$)
	40	+ )
	41	+ )*+ # zero or more times
	42	+ |
	43	+ # keyframe animation progress percentage (e.g. 50%), untrimmed
	44	+ \\s*+(\\d++%)\\s*+
	45	+ )$
	46	+ /ux';
	47	+}