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79 Commits

Author SHA1 Message Date
Rob Pike
d324a851c4 slight simplification made possible by the code now processing match states 
in order of discovery.

R=rsc
https://golang.org/cl/157112
 2009-11-20 11:16:57 -08:00
Rob Pike
c62069cc1f add a match arena to regexp to avoid generating garbage. 
simple regexps run 20x faster.
the regex-dna benchmark goes 3x faster.

R=rsc
CC=golang-dev
https://golang.org/cl/156108
 2009-11-19 23:12:01 -08:00
Rob Pike
a6e1ad2733 two easy optimizations for regexp: 
1) if char class contains a single character, make it a single character.
		(this is used to quote, e.g. [.] rather than \.
	2) if regexp begins with ordinary text substring, use plain string match to start engine

R=rsc
CC=golang-dev
https://golang.org/cl/157095
 2009-11-19 16:45:50 -08:00
Rob Pike
e70cedfaec remove bytes.Copy 
replace all calls with calls to copy
use copy in regexp and bytes.Buffer

R=rsc
CC=golang-dev
https://golang.org/cl/157073
 2009-11-18 15:24:24 -08:00
Rob Pike
0263103a05 move evaluation of null-matching instructions one iteration earlier. 
performance hit of about 20% but more intuitive results for submatches.
we need a good regexp package at some point.

Fixes #110.

R=rsc
CC=golang-dev
https://golang.org/cl/152131
 2009-11-14 12:23:24 -08:00
Rob Pike
845276ae68 remove dead code from test 
R=rsc
CC=golang-dev
https://golang.org/cl/152118
 2009-11-12 23:35:45 -08:00
Robert Griesemer
3bb0032cd6 - replaced gofmt expression formatting algorithm with 
rsc's algorithm
- applied gofmt -w misc src
- partial CL (last chunk)

R=rsc, r
http://go/go-review/1024041
 2009-11-09 21:23:52 -08:00
Robert Griesemer
40621d5c0d remove semis after statements in one-statement statement lists 
R=rsc, r
http://go/go-review/1025029
 2009-11-09 12:07:39 -08:00
Robert Griesemer
368f8cbc75 - fine-tuning of one-line func heuristic (nodes.go) 
- enabled for function declarations (not just function literals)
- applied gofmt -w $GOROOT/src
(look for instance at src/pkg/debug/elf/elf.go)

R=r, rsc
CC=go-dev
http://go/go-review/1026006
 2009-11-06 14:24:38 -08:00
Robert Griesemer
39fd52d3a0 gofmt'ed missing regexp file 
(one-line functions will be re-established once we have all
formatted uniformly)

R=r
http://go/go-review/1023004
 2009-11-05 17:35:40 -08:00
Robert Griesemer
38006946e6 manual fix for better gofmt result 
R=r
http://go/go-review/1019005
 2009-11-05 17:27:02 -08:00
Rob Pike
56cba8855e panic can't print interfaces well so use err.String() 
R=rsc
http://go/go-review/1016041
 2009-11-04 15:13:16 -08:00
Rob Pike
cd82d490fc eliminate goroutine from testing/regexp too. 
R=rsc
CC=go-dev
http://go/go-review/1018021
 2009-11-02 11:24:47 -08:00
Rob Pike
acc54b6c70 take goroutines out of regexp so they can be created 
during initialization.

R=rsc
CC=go-dev
http://go/go-review/1016023
 2009-11-02 10:08:22 -08:00
Russ Cox
094f1d5990 more lgtm files from gofmt 
R=gri
OCL=35485
CL=35488
 2009-10-08 15:14:54 -07:00
Russ Cox
91549438d8 apply gofmt to rand reflect regexp rpc runtime sort strconv strings sync syscall testing time unicode unsafe utf8 
R=gri
DELTA=1409  (79 added, 24 deleted, 1306 changed)
OCL=35415
CL=35437
 2009-10-07 11:55:06 -07:00
Rob Pike
7be770071f use buf.String() instead of string(buf.Bytes()) 
use strings.Buffer instead of bytes.Buffer in some places

R=rsc
DELTA=40  (0 added, 3 deleted, 37 changed)
OCL=34770
CL=34775
 2009-09-17 23:51:06 -07:00
Rob Pike
d5be41fc4e rename bytes.Buffer.Data() to bytes.Buffer.Bytes() 
R=rsc
DELTA=152  (6 added, 0 deleted, 146 changed)
OCL=34695
CL=34701
 2009-09-16 15:15:00 -07:00
Russ Cox
ca6a0fee1b more "declared and not used". 
the last round omitted := range and only
checked 1 out of N vars in a multi-var :=

R=r
OCL=34624
CL=34638
 2009-09-15 09:41:59 -07:00
Russ Cox
28eba4877b fix "declared and not used" errors in non-test code. 
R=r
DELTA=112  (6 added, 57 deleted, 49 changed)
OCL=34610
CL=34610
 2009-09-14 17:20:29 -07:00
Rob Pike
396b47bbbd generate the unicode tables directly from web database 
after this CL, two more to come:
	1) add an exhaustive test, probably as a variant of maketables
	2) add ToUpper, ToLower, ToTitle and associated tests

R=rsc
DELTA=1578  (1007 added, 559 deleted, 12 changed)
OCL=33902
CL=33907
 2009-08-26 16:01:31 -07:00
Russ Cox
b04ac108fd convert non-low-level non-google pkg code 
to whole-package compilation.

R=r
OCL=33070
CL=33101
 2009-08-12 13:19:17 -07:00
Rob Pike
68e250516c make a simpler regexp implementation with fewer dependencies and put it inside testing. 
remove "regexp." from regexp tests.

R=rsc
DELTA=1173  (1152 added, 1 deleted, 20 changed)
OCL=33028
CL=33037
 2009-08-11 13:54:47 -07:00
Stephen Ma
e4603db393 Add methods AllMatches, AllMatchesString, AllMatchesIter, 
AllMatchesStringIter, based on sawn and sawzall functions in sawzall.

APPROVED=rsc
DELTA=218  (218 added, 0 deleted, 0 changed)
OCL=32408
CL=32949
 2009-08-09 19:30:47 -07:00
Rob Pike
3355cadf3f support []byte (more efficient) as well as string in the interfaces. 
change the names; Match is for []byte and MatchString is for string, etc.

R=rsc
DELTA=195  (155 added, 0 deleted, 40 changed)
OCL=32800
CL=32800
 2009-08-05 15:44:45 -07:00
Rob Pike
5a4d431dd1 special case: recognize '[^\n]' and make it as fast as '.' 
R=rsc
DELTA=25  (23 added, 1 deleted, 1 changed)
OCL=32793
CL=32799
 2009-08-05 14:40:34 -07:00
Russ Cox
d3a412a5ab io.StringBytes -> strings.Bytes 
io.ByteBuffer -> bytes.Buffer

left io.ByteBuffer stub around for now,
for protocol compiler.

R=r
OCL=30861
CL=30872
 2009-06-29 15:24:23 -07:00
Steve Newman
a6c7a80b5b Add a ReplaceAll method to Regexp. 
APPROVED=r,rsc
DELTA=189  (187 added, 0 deleted, 2 changed)
OCL=30205
CL=30517
 2009-06-18 17:55:47 -07:00
Rob Pike
d90e7cbac6 mv src/lib to src/pkg 
tests: all.bash passes, gobuild still works, godoc still works.

R=rsc
OCL=30096
CL=30102
 2009-06-09 09:53:44 -07:00