tokenize some regexp patterns

[atuchin-m]

No description provided.

[github-actions]

Rust Benchmark

Benchmark suite	Current: 17d1bed	Previous: fca4bc5	Ratio
rule-match-browserlike/brave-list	1925265775 ns/iter (± 10987099)	2217231164 ns/iter (± 9972499)	0.87
rule-match-first-request/brave-list	1125687 ns/iter (± 13702)	1138984 ns/iter (± 12605)	0.99
blocker_new/brave-list	167851340 ns/iter (± 1832225)	165009583 ns/iter (± 313867)	1.02
blocker_new/brave-list-deserialize	25062825 ns/iter (± 2629152)	23484976 ns/iter (± 262551)	1.07
memory-usage/brave-list-initial	10212240 ns/iter (± 3)	10212224 ns/iter (± 3)	1.00
memory-usage/brave-list-initial/max	62258503 ns/iter (± 3)	62256247 ns/iter (± 3)	1.00
memory-usage/brave-list-initial/alloc-count	1362674 ns/iter (± 3)	1362325 ns/iter (± 3)	1.00
memory-usage/brave-list-1000-requests	2580216 ns/iter (± 3)	2666958 ns/iter (± 3)	0.97
memory-usage/brave-list-1000-requests/alloc-count	69892 ns/iter (± 3)	71369 ns/iter (± 3)	0.98
url_cosmetic_resources/brave-list	190608 ns/iter (± 1266)	202616 ns/iter (± 728)	0.94
cosmetic-class-id-match/brave-list	3370986 ns/iter (± 933168)	3413013 ns/iter (± 963790)	0.99

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