Improve encode speed by ~50%

[YetAnotherMinion]

Moved entity lookup into match arms instead of using a function that does a binary search in static array, then boxes up the result, and then immediately unboxes it in the match.

Before cargo bench

running 4 tests
test bench_decode_attribute ... bench:   2,585,276 ns/iter (+/- 1,174,543) = 93 MB/s
test bench_decode_minimal   ... bench:   1,314,817 ns/iter (+/- 793,375) = 89 MB/s
test bench_encode_attribute ... bench:   2,103,300 ns/iter (+/- 874,982) = 54 MB/s
test bench_encode_minimal   ... bench:   1,799,386 ns/iter (+/- 889,072) = 63 MB/s

test result: ok. 0 passed; 0 failed; 0 ignored; 4 measured; 0 filtered out

After cargo bench

running 4 tests
test bench_decode_attribute ... bench:   2,273,943 ns/iter (+/- 986,740) = 106 MB/s
test bench_decode_minimal   ... bench:   1,292,612 ns/iter (+/- 840,655) = 91 MB/s
test bench_encode_attribute ... bench:   1,528,778 ns/iter (+/- 725,928) = 74 MB/s
test bench_encode_minimal   ... bench:   1,177,384 ns/iter (+/- 560,557) = 96 MB/s

test result: ok. 0 passed; 0 failed; 0 ignored; 4 measured; 0 filtered out

[YetAnotherMinion]

Checking in, this repo looks dead. Do you need new maintainers?

[LuoZijun]

@YetAnotherMinion

谢谢你分享的经验，我稍微做了一些改进，这样就能支持解码更多的 HTML 转义字符，性能看起来似乎也还行。

Thank you for sharing the experience, I made a little bit of improvement, so that I can support decoding more HTML escape characters( HTML Character entity references ), performance seems to be OK.

-- From Bing Translate

benchmark:

test lexer::htmlentity::bench_escape_html_with_bytes   ... bench:     226,428 ns/iter (+/- 67,908) = 503 MB/s
test lexer::htmlentity::bench_escape_html_with_chars   ... bench:     258,850 ns/iter (+/- 42,165) = 440 MB/s
test lexer::htmlentity::bench_escape_html_with_str     ... bench:     231,982 ns/iter (+/- 87,126) = 491 MB/s
test lexer::htmlentity::bench_unescape_html_with_bytes ... bench:     284,332 ns/iter (+/- 39,198) = 409 MB/s
test lexer::htmlentity::bench_unescape_html_with_chars ... bench:     328,042 ns/iter (+/- 22,807) = 355 MB/s
test lexer::htmlentity::bench_unescape_html_with_str   ... bench:     287,491 ns/iter (+/- 42,134) = 405 MB/s

Repo: LuoZijun/es@b67338f