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John Naylor d3f45323bb Improve code clarity in epilogue of UTF-8 verification fast path 
The previous coding was correct, but the style and commentary were a bit
vague about which operations had to happen, in what circumstances, and
in what order. Rearrange so that the epilogue does nothing in the DFA END
state. That allows turning some conditional statements in the backtracking
logic into asserts. With that, we can be more explicit about needing
to backtrack at least one byte in non-END states to ensure checking the
current byte sequence in the slow path. No change to the regression tests,
since they should be able catch deficiencies here already.

In passing, improve the comments around DFA states where the first
continuation byte has a restricted range.
 		2022-01-17 22:53:50 -05:00
..
unicode Update copyright for 2022 2022-01-07 19:04:57 -05:00
.gitignore Replace the data structure used for keyword lookup. 2019-01-06 17:02:57 -05:00
Makefile Replace random(), pg_erand48(), etc with a better PRNG API and algorithm. 2021-11-28 21:33:07 -05:00
archive.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
base64.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
checksum_helper.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
config_info.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
controldata_utils.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
cryptohash.c Fix comment related to pg_cryptohash_error() 2022-01-12 12:39:36 +09:00
cryptohash_openssl.c Fix comment related to pg_cryptohash_error() 2022-01-12 12:39:36 +09:00
d2s.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
d2s_full_table.h Update copyright for 2022 2022-01-07 19:04:57 -05:00
d2s_intrinsics.h Update copyright for 2022 2022-01-07 19:04:57 -05:00
digit_table.h Change floating-point output format for improved performance. 2019-02-13 15:20:33 +00:00
encnames.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
exec.c Make EXEC_BACKEND more convenient on Linux and FreeBSD. 2022-01-11 00:04:33 +13:00
f2s.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
fe_memutils.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
file_perm.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
file_utils.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
hashfn.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
hmac.c Improve error handling of HMAC computations 2022-01-13 16:17:21 +09:00
hmac_openssl.c Improve error handling of HMAC computations 2022-01-13 16:17:21 +09:00
ip.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
jsonapi.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
keywords.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
kwlookup.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
link-canary.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
logging.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
md5.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
md5_common.c Improve error handling of cryptohash computations 2022-01-11 09:55:16 +09:00
md5_int.h Update copyright for 2022 2022-01-07 19:04:57 -05:00
pg_get_line.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
pg_lzcompress.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
pg_prng.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
pgfnames.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
protocol_openssl.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
psprintf.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
relpath.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
restricted_token.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
rmtree.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
ryu_common.h Update copyright for 2022 2022-01-07 19:04:57 -05:00
saslprep.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
scram-common.c Improve error handling of HMAC computations 2022-01-13 16:17:21 +09:00
sha1.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
sha1_int.h Update copyright for 2022 2022-01-07 19:04:57 -05:00
sha2.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
sha2_int.h Update copyright for 2022 2022-01-07 19:04:57 -05:00
sprompt.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
string.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
stringinfo.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
unicode_norm.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
username.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
wait_error.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
wchar.c Improve code clarity in epilogue of UTF-8 verification fast path 2022-01-17 22:53:50 -05:00