3 Commits

Author	SHA1	Message	Date
Eric Roshan-Eisner	631a0e71c1	strings: implement a faster single-string Replacer ... The string searching is implemented separately so other functions may make use of it in the future. benchmark old ns/op new ns/op delta BenchmarkSingleMaxSkipping 125889 2474 -98.03% BenchmarkSingleLongSuffixFail 16252 1996 -87.72% BenchmarkSingleMatch 260793 136266 -47.75% benchmark old MB/s new MB/s speedup BenchmarkSingleMaxSkipping 79.43 4041.57 50.88x BenchmarkSingleLongSuffixFail 61.65 501.81 8.14x BenchmarkSingleMatch 57.52 110.08 1.91x R=nigeltao CC=golang-dev https://golang.org/cl/6545049	2012-09-28 12:34:18 +10:00
Eric Eisner	0aad3cdc59	strings: implement a faster generic Replacer ... This also fixes the semantics of some corner cases with the empty match. TODOs for genericReplacer in the tests are fixed. benchmark old ns/op new ns/op delta BenchmarkGenericNoMatch 71395 3132 -95.61% BenchmarkGenericMatch1 75610 20280 -73.18% BenchmarkGenericMatch2 837995 86725 -89.65% R=nigeltao, rsc CC=golang-dev https://golang.org/cl/6492076	2012-09-17 11:50:15 +10:00
Brad Fitzpatrick	f75ff01f44	strings: implement a faster byte->byte Replacer ... When all old & new string values are single bytes, byteReplacer is now used, instead of the generic algorithm. BenchmarkGenericMatch 10000 102519 ns/op BenchmarkByteByteMatch 1000000 2178 ns/op fast path, when nothing matches: BenchmarkByteByteNoMatch 1000000 1109 ns/op comparisons to multiple Replace calls: BenchmarkByteByteReplaces 100000 16164 ns/op comparison to strings.Map: BenchmarkByteByteMap 500000 5454 ns/op R=rsc CC=golang-dev https://golang.org/cl/5175050	2011-10-03 13:12:01 -07:00