The bit packing for runes with decompositions assumed that
QC Maybe cannot happen and only stored the yes/no bit,
not the maybe bit. Squeeze the length from 6 to 5 bits to
make room for saving the maybe bit too. This has no effect
in Unicode 15 but will be needed for Unicode 16.

For golang/go#77266.

Change-Id: I377a0fc7af218ef5a481139b788fbb8b1e3980fb
Reviewed-on: https://go-review.googlesource.com/c/text/+/737400
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>

The go.mod for this repo requires Go 1.24, so remove the code
that is tagged with earlier Go versions. In general we could do
this across the repo. I'm doing it here because I was confused
by the idna10.0.0 vs idna9.0.0 split, which is more unusual
than the usual per-version tables. But since we're deleting things,
delete the too-old tables too.

For golang/go#77266.

Change-Id: Icc22b54fa976136142bda1c8917458c4595427b3
Reviewed-on: https://go-review.googlesource.com/c/text/+/737401
Reviewed-by: Roland Shoemaker <roland@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>

Unicode 11 changed the test file format, and we've never updated
to the new format nor kept up with algorithmic changes.

Unicode 16 dropped the disallowed_STD3 variants from the
IdnaMappingTable.txt file and made more algorithmic changes.

Update to the new test format and implement the new algorithm.
Note that unicode16 is a constant, so disabled version-specific
code is dead code.

For golang/go#77266.

Change-Id: Ic9d0a6a7a5922c12383de12264c2a6d38b951047
Reviewed-on: https://go-review.googlesource.com/c/text/+/737402
Reviewed-by: Roland Shoemaker <roland@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>

Manual edits in internal/gen/gen.go and internal/export/idna's file URLs
(Unicode 17 moved the IDNA files.)

Everything else is UNICODE_VERSION=17.0.0 go generate.

For golang/go#77266.

Change-Id: I38738aab7775471c51464b20d1f34fc53d50797d
Reviewed-on: https://go-review.googlesource.com/c/text/+/737404
Reviewed-by: Roland Shoemaker <roland@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>

git rm `{git grep -l -E '!go1.(9|1|2[0123])' | grep -v internal/gen}

The go.mod for this repo requires Go 1.24, so remove the code
that is only here for older versions.

Change-Id: I29b5fbc697b34139adc2fb3d8752dbaddfdb3480
Reviewed-on: https://go-review.googlesource.com/c/text/+/738580
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Auto-Submit: Russ Cox <rsc@golang.org>

Update internal/gen/gen.go and then
UNICODE_VERSION=17.0.0 go generate

Change-Id: I9f1cbc089e1a0d89687c7c53f1c157f70a51d8f0
Reviewed-on: https://go-review.googlesource.com/c/text/+/738581
Auto-Submit: Russ Cox <rsc@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>

We are not maintaining pre-Go 1.24 code anymore,
and certainly not pre-Go 1.16 or pre-Go 1.9 code.

Change-Id: Idd3a1fd476f8eb34b8fbb6352addb5955e6b5893
Reviewed-on: https://go-review.googlesource.com/c/text/+/738582
Auto-Submit: Russ Cox <rsc@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>

Update golang.org/x dependencies to their latest tagged versions.

Change-Id: I15940ae7657ea118f6e8afe8b24d52bbb0118fa3
Reviewed-on: https://go-review.googlesource.com/c/text/+/743121
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Gopher Robot <gobot@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>