Fixes #1412.

R=rsc, r
CC=golang-dev
https://golang.org/cl/3994041

R=r, r2
CC=golang-dev
https://golang.org/cl/3939042

R=r, rsc, iant, ken2
CC=golang-dev
https://golang.org/cl/3992041

When searching for regular expressions such as
".", there are many consecutive matches.
In the generated HTML, combine them instead of
generating a new <span> for each adjacent text
segment highlighting a match.

Massively reduces the size of the generated
HTML in those cases.

R=r, rsc
CC=golang-dev
https://golang.org/cl/3971041

R=r
CC=golang-dev
https://golang.org/cl/3973041

R=r
CC=golang-dev
https://golang.org/cl/3972041

R=ken2, ken3
CC=golang-dev
https://golang.org/cl/3970041

R=dsymonds
CC=golang-dev
https://golang.org/cl/3760049

It's currently broken due to f6d5bac536c5.

R=r, r2
CC=golang-dev
https://golang.org/cl/3967041

R=agl1, rsc
CC=golang-dev
https://golang.org/cl/3861044

R=adg, rsc
CC=golang-dev
https://golang.org/cl/3903043

This implements the algorithm qsufsort using the sort package
as a sorting primitive. Its worst-case performance is O(N*log(N)), and it
uses only an additional slice of N ints of memory during creation.

Benchmarks (seconds):
           old    new
10k nulls          149    0.044
1M English corpus  32.0   3.6

R=gri, gri1
CC=golang-dev
https://golang.org/cl/3752044

there is something funny in the database; trying to recreate the change.

R=gri
CC=golang-dev
https://golang.org/cl/3900044

Pending CL 3752044.

R=r, r2
CC=golang-dev
https://golang.org/cl/3949042

R=rsc, nigeltao_gnome
CC=golang-dev
https://golang.org/cl/3956042

thanks to piotrnar for the original CL.
Fixes #1371.

R=rsc
CC=golang-dev
https://golang.org/cl/3834042

No functional (ha!) change.

R=rsc
CC=golang-dev
https://golang.org/cl/3959041

error is needed by all the OpenPGP packages as they return a shared
family of error types.

armor implements OpenPGP armoring. It's very like PEM except:
  a) it includes a CRC24 checksum
  b) PEM values are small (a few KB) and so encoding/pem assumes that
     they fit in memory. Armored data can be very large and so this
     package presents a streaming interface.

R=r, nsz, rsc
CC=golang-dev
https://golang.org/cl/3786043

The code was (as annotated in the source code) adopted from Tom's
LibCrypt (public domain code, [1]). It was neither optimised for speed
nor were any security features added.

[1] http://libtom.org/?page=features&newsitems=5&whatfile=crypt

R=rsc, berengarlehr, albert.strasheim, agl1
CC=golang-dev, schulze
https://golang.org/cl/2687042

R=r
CC=golang-dev
https://golang.org/cl/3919043

R=r, cw, niemeyer, rsc
CC=golang-dev
https://golang.org/cl/3952041

I missed that environment is used during runtime setup,
well before go init() functions run. Implemented os-dependent
runtime.goenvs functions to allow for different unix, plan9 and
windows versions of environment discovery.

R=rsc, paulzhol
CC=golang-dev
https://golang.org/cl/3787046

R=rsc, brainman, r, r2
CC=golang-dev
https://golang.org/cl/3887042

R=rsc, gri
CC=golang-dev
https://golang.org/cl/3890042

R=rsc
CC=golang-dev
https://golang.org/cl/3948043

In the case where r.Method == "POST", was
calling Printf with an argument but "" format string,
causing a spurious %!EXTRA(...) message.

Also escape string properly in HTML generation.

R=r
CC=golang-dev
https://golang.org/cl/3923043

* Avoid confusion between imported and exported symbols.
* Record number of imported and exported symbols correctly.
* Explictly relocate SMACHOSYM section, since it is not in datap.

R=rsc
CC=golang-dev
https://golang.org/cl/3920042

Such fields are simply ignored.

R=rsc, r2
CC=golang-dev
https://golang.org/cl/3889043

R=rsc
CC=golang-dev
https://golang.org/cl/3882042

A few system call numbers on x86 Linux are
defined in terms of a previous definition,

e.g.,
	#define __NR_timer_create	259
	#define __NR_timer_settime	(__NR_timer_create+1)
	...
	#define __NR_mq_open		277
	#define __NR_mq_unlink		(__NR_mq_open+1)

This change assumes the numbers are sorted
sequentially in the input file.

R=rsc, bradfitzwork
CC=golang-dev
https://golang.org/cl/3946041

Submitting TBR to fix Darwin build.

R=rsc
TBR=rsc
CC=golang-dev
https://golang.org/cl/3912043

Can handle cgo packages now but only if they
do not need to set CGO_LDFLAGS and CGO_CFLAGS.

R=adg, rsc
CC=golang-dev
https://golang.org/cl/3891042

There were already functions for the standard logger;
this just completes the set.

R=rsc, adg
CC=golang-dev
https://golang.org/cl/3901043

R=rsc, iant2, r
CC=golang-dev
https://golang.org/cl/3886041

Fixes #432.

R=r, r2
CC=golang-dev
https://golang.org/cl/3869043

This will enable functions which use unsafe.Pointer as an argument
to be correctly exported by cgo.

R=rsc
CC=golang-dev
https://golang.org/cl/3849043

R=rsc
CC=golang-dev
https://golang.org/cl/3902044

This change prevents enum consts from conflicting with themselves
when loaded twice in different go files.

Fixes #1400.

R=rsc
CC=golang-dev
https://golang.org/cl/3849044

Regular expressions may now be used in conjuction with full text
search. Godoc will show the first 10000 occurences in the source
code and highlight the respective text segments.

- added new flag -testDir to specify a small directory for testing
  (fast index creation; default = "")

- use new FormatText function to format text and Go source
  code in HTML, supporting multiple kinds of text selections
  simulatenously); this replaces the uses of go/printer
  Stylers

- for now removed currently unused mechanism for identifier-
  specific JS popups (will come back in some form once we
  have type or other useful information)

- various typo fixes and minor cleanups throughout

Missing:
- indexing of non-.go files

R=r, r2
CC=golang-dev, rsc
https://golang.org/cl/3699041

Fixes #1285.

R=r, rsc, iant, ken2, r2
CC=golang-dev
https://golang.org/cl/3918041