Remove Regex dependency #434

Job	Run time
cargo-deny (advisories)	18s
lint	34s
cargo-deny (bans licenses sources)	17s
aarch64-apple-darwin / build	55s
aarch64-apple-darwin-nightly / build	1m 19s
aarch64-apple-ios / build	48s
aarch64-unknown-linux-gnu / build	43s
aarch64-unknown-linux-musl / build	59s
arm-linux-androideabi / build	36s
armv7-linux-androideabi / build	35s
i686-pc-windows-gnu / build	2m 19s
i686-pc-windows-msvc / build	1m 51s
i686-unknown-linux-gnu / build	36s
i686-unknown-linux-musl / build	1m 6s
msrv-aarch64-apple-darwin / build	44s
msrv-x86_64-pc-windows-msvc / build	51s
msrv-arm-linux-androideabi / build	46s
msrv-x86_64-unknown-freebsd / build	47s
msrv-x86_64-unknown-linux-gnu / build	45s
msrv-x86_64-unknown-linux-musl / build	57s
msrv-x86_64-unknown-netbsd / build	45s
x86_64-apple-darwin / build	1m 9s
x86_64-pc-windows-gnu / build	2m 23s
x86_64-pc-windows-msvc / build	2m 10s
x86_64-pc-windows-msvc-nightly / build	2m 7s
x86_64-unknown-freebsd / build	32s
x86_64-unknown-linux-gnu / build	54s
x86_64-unknown-linux-musl / build	57s
x86_64-unknown-linux-gnu-nightly / build	55s
x86_64-unknown-netbsd / build	28s
	30m 6s

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