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10 Commits

Author SHA1 Message Date
Russ Cox
6c230fbc67 regexp: move to old/regexp, replace with exp/regexp 
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5127042
 2011-09-26 18:33:13 -04:00
Rob Pike
7db904c1f6 regexp: add support for matching text read from things that implement 
ReadRune.  (If you have a Reader but not a RuneReader, use bufio.)

The matching code is a few percent slower but significantly cleaner.

R=rsc
CC=golang-dev
https://golang.org/cl/4125046
 2011-02-03 13:58:40 -08:00
Rob Pike
8a2d706487 regexp tests: make some benchmarks more meaningful 
The first two "Literal" tests were silly.
Also fix a naming typo in a couple of tests.

R=rsc
CC=golang-dev
https://golang.org/cl/4127045
 2011-02-01 17:48:42 -08:00
Rob Pike
15cb7ed34f regexp: fix prefix bug. 
After a prefix match, the old code advanced the length of the
prefix.  This is incorrect since the full match might begin
in the middle of the prefix. (Consider "aaaab+" matching
"aaaaaab").

Fixes #1373

R=rsc
CC=golang-dev
https://golang.org/cl/3795044
 2011-01-03 11:35:34 -08:00
Rob Pike
a9e7c9381e regexp: change Expr() to String(); add HasOperator method to Regexp. 
It reports whether a regular expression has operators
as opposed to matching literal text.

R=rsc, gri
CC=golang-dev
https://golang.org/cl/3731041
 2010-12-17 10:23:46 -08:00
Rob Pike
5bd4094d2e regexp: add HasMeta and regexp.Expr(). 
The former is a boolean function to test whether a string
contains a regular expression metacharacter; the second
returns the string used to compile the regexp.

R=gri, rsc
CC=golang-dev
https://golang.org/cl/3728041
 2010-12-16 16:55:26 -08:00
Robert Griesemer
3478891d12 gofmt -s -w src misc 
R=r, rsc
CC=golang-dev
https://golang.org/cl/2662041
 2010-10-22 10:06:33 -07:00
Rob Pike
ca3b5222eb regexp: interpret all Go characer escapes \a \b \f \n \r \t \v 
R=rsc
CC=golang-dev
https://golang.org/cl/2042044
 2010-08-30 14:06:59 +10:00
Rob Pike
69fe3dd754 regexp: grow slices dynamically in the 'All' routines. 
R=rsc
CC=golang-dev
https://golang.org/cl/1953044
 2010-08-16 15:17:34 -07:00
Rob Pike
6610d79eda regexp: new regularized methods for matching. 
The previous set was spotty, incomplete, and confusing.
This CL proposes a regular, clean set with clearer names.
It's also complete.  Many existing methods will be deprecated,
but not in this CL.  Ditto for the tests.

R=rsc, gri
CC=golang-dev, rog
https://golang.org/cl/1946041
 2010-08-12 14:41:52 +10:00