Cut introduction.
Start rewrite.

R=gri
DELTA=201  (20 added, 118 deleted, 63 changed)
OCL=25226
CL=25229

No textual changes except for html formatting.
Seems like a fine intermediate step.

R=r
DELTA=7638  (4079 added, 3559 deleted, 0 changed)
OCL=25211
CL=25224

- accept embedded interfaces in interfaces
- missing: output incorrect, but at least all source code is accepted again

R=r
OCL=25223
CL=25223

DELTA=176  (172 added, 0 deleted, 4 changed)
OCL=25182
CL=25222

R=ken,gri,rsc
DELTA=185  (185 added, 0 deleted, 0 changed)
OCL=25133
CL=25169

examples:

	chan <- (chan int)
	chan (<- chan int)
	(map[string]func())("a": main)

R=ken
OCL=25151
CL=25151

TBR=rsc
OCL=25135
CL=25135

R=rsc
DELTA=23  (23 added, 0 deleted, 0 changed)
OCL=25088
CL=25134

R=r
DELTA=3  (0 added, 1 deleted, 2 changed)
OCL=25106
CL=25106

R=rsc
OCL=25105
CL=25105

make test a little stronger.

R=rsc
DELTA=94  (27 added, 39 deleted, 28 changed)
OCL=25085
CL=25087

R=r
DELTA=2  (0 added, 2 deleted, 0 changed)
OCL=25081
CL=25084

R=r
DELTA=169  (79 added, 23 deleted, 67 changed)
OCL=25079
CL=25083

inspired by expat's callback interface,
but a bit simpler thanks to go interfaces.

also serves as reference notes about XML.

the parser itself is unimplemented.

not in Makefiles, though it does build.

R=r
DELTA=425  (425 added, 0 deleted, 0 changed)
OCL=25077
CL=25080

add visitor functions to scan the flags.
add a way to set a flag.
add a flag test.

R=rsc
DELTA=169  (99 added, 19 deleted, 51 changed)
OCL=25076
CL=25078

R=ken
OCL=25075
CL=25075

TBR=r
OCL=25074
CL=25074

R=r
DELTA=205  (1 added, 157 deleted, 47 changed)
OCL=25071
CL=25073

R=ken
OCL=25072
CL=25072

assorted underscore cleanup

R=r
DELTA=488  (410 added, 3 deleted, 75 changed)
OCL=25070
CL=25070

	- use a lock instead of a thread in once
		avoids deadlock in recursive once calls
	- implement os.Setenv
	- remove "export" from some scripts
	- remove _ from names in time package
	- fix time test for non-MTV machines

R=r
DELTA=265  (87 added, 58 deleted, 120 changed)
OCL=25057
CL=25057

R=rsc
OCL=25054
CL=25054

as thread-safe as possible, given the surrounding system.
add stub RWLock implementation.

R=r
DELTA=852  (834 added, 6 deleted, 12 changed)
OCL=25046
CL=25053

command-line comment.

R=r
DELTA=11  (6 added, 0 deleted, 5 changed)
OCL=25051
CL=25051

	get rid of _ on private names in net.
	fix os_test file name list.
	newline not needed on Errorf.

R=r
DELTA=305  (34 added, 2 deleted, 269 changed)
OCL=25047
CL=25047

R=r
DELTA=8  (0 added, 6 deleted, 2 changed)
OCL=25045
CL=25045

R=ken
OCL=25044
CL=25044

- remove all parsing heuristics
- as a result, accept a wider syntax, but parser is simpler

R=r
OCL=25029
CL=25029

R=rsc
OCL=25026
CL=25026

- updated some file (but not all - left array package in place for now)

R=rsc
DELTA=530  (483 added, 0 deleted, 47 changed)
OCL=25025
CL=25025

only non-trivial changes are in
	convlit1.go
	golden.out

R=gri
OCL=25019
CL=25024

warn about composite literal { } syntax.

R=ken
OCL=25018
CL=25023

TBR=r
OCL=25021
CL=25021

R=rsc
DELTA=27  (27 added, 0 deleted, 0 changed)
OCL=25015
CL=25015

  (now in sync with the spec and with 6g)
- fixed incorrect logging statement in gds

R=r
OCL=24970
CL=24970

- do not permit + for array concatenation anymore
  (not implemented and not a good idea)
- document that unsafe function results are compile time constants
- fixed minor typos

DELTA=41  (7 added, 11 deleted, 23 changed)
OCL=24899
CL=24927

R=ken
OCL=24350
CL=24914

R=r
OCL=24349
CL=24913

i stumbled across it in all.bash.

TBR=r
OCL=24912
CL=24912

- fixed a syntax error

R=r
DELTA=17  (15 added, 0 deleted, 2 changed)
OCL=24876
CL=24889