Remove Regex dependency #435

Job	Run time
lint	25s
cargo-deny (advisories)	17s
cargo-deny (bans licenses sources)	19s
aarch64-apple-darwin / build	25s
aarch64-unknown-linux-gnu / build	37s
aarch64-apple-ios / build	41s
aarch64-unknown-linux-musl / build	57s
msrv-aarch64-apple-darwin / build	42s
msrv-arm-linux-androideabi / build	43s
msrv-x86_64-pc-windows-msvc / build	1m 3s
msrv-x86_64-unknown-freebsd / build	50s
msrv-x86_64-unknown-linux-gnu / build	36s
msrv-x86_64-unknown-linux-musl / build	56s
msrv-x86_64-unknown-netbsd / build	44s
aarch64-apple-darwin-nightly / build	28s
arm-linux-androideabi / build	26s
armv7-linux-androideabi / build	27s
i686-pc-windows-gnu / build	1m 59s
i686-pc-windows-msvc / build	1m 30s
i686-unknown-linux-gnu / build	35s
i686-unknown-linux-musl / build	1m 3s
x86_64-apple-darwin / build	51s
x86_64-pc-windows-gnu / build	2m 15s
x86_64-pc-windows-msvc / build	1m 52s
x86_64-pc-windows-msvc-nightly / build	1m 9s
x86_64-unknown-freebsd / build	29s
x86_64-unknown-linux-gnu / build	57s
x86_64-unknown-linux-gnu-nightly / build	42s
x86_64-unknown-linux-musl / build	1m 2s
x86_64-unknown-netbsd / build	31s
	25m 31s

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