Fix build on Solaris

Conflicts:
	internal/config/config_test.go

.gitattributes

@@ -1,9 +0,0 @@
-# Text files use LF line endings in this repository
-*   text=auto
-
-# Except the dependencies, which we leave alone
-Godeps/**   -text=auto
-
-# Diffs on these files are meaningless
-gui.files.go    -diff
-*.svg           -diff

.gitignore

@@ -1,16 +1,12 @@
 syncthing
-!gui/syncthing
-!Godeps/_workspace/src/github.com/syncthing
 syncthing.exe
 *.tar.gz
 *.zip
 *.asc
+*.sublime*
 .jshintrc
 coverage.out
 files/pidx
 bin
 perfstats*.csv
 coverage.xml
-syncthing.sig
-RELEASE
-deb

.mailmap

@@ -1 +0,0 @@
-NICKS

AUTHORS

@@ -1,72 +0,0 @@
-# This is the official list of Syncthing authors for copyright purposes.
-
-Aaron Bieber <qbit@deftly.net>
-Adam Piggott	<aD@simplypeachy.co.uk> <simplypeachy@users.noreply.github.com>
-Alexander Graf <register-github@alex-graf.de>
-Andrew Dunham <andrew@du.nham.ca>
-Antony Male <antony.male@gmail.com>
-Arthur Axel fREW Schmidt <frew@afoolishmanifesto.com> <frioux@gmail.com>
-Audrius Butkevicius <audrius.butkevicius@gmail.com>
-Bart De Vries <devriesb@gmail.com>
-Ben Curthoys <ben@bencurthoys.com>
-Ben Schulz <ueomkail@gmail.com> <uok@users.noreply.github.com>
-Ben Sidhom <bsidhom@gmail.com>
-Brandon Philips <brandon@ifup.org>
-Brendan Long <self@brendanlong.com>
-Brian R. Becker <brbecker@gmail.com>
-Caleb Callaway <enlightened.despot@gmail.com>
-Carsten Hagemann <moter8@gmail.com>
-Cathryne Linenweaver <cathryne.linenweaver@gmail.com> <Cathryne@users.noreply.github.com>
-Chris Howie <me@chrishowie.com>
-Chris Joel <chris@scriptolo.gy>
-Colin Kennedy <moshen.colin@gmail.com>
-Daniel Bergmann <dan.arne.bergmann@gmail.com> <brgmnn@users.noreply.github.com>
-Daniel Martí <mvdan@mvdan.cc>
-Denis A. <denisva@gmail.com>
-Dennis Wilson <dw@risu.io>
-Dominik Heidler <dominik@heidler.eu>
-Elias Jarlebring <jarlebring@gmail.com>
-Emil Hessman <emil@hessman.se>
-Erik Meitner <e.meitner@willystreet.coop>
-Federico Castagnini <federico.castagnini@gmail.com>
-Felix Ableitner <me@nutomic.com>
-Felix Unterpaintner <bigbear2nd@gmail.com>
-Francois-Xavier Gsell <fxgsell@gmail.com>
-Frank Isemann <frank@isemann.name>
-Gilli Sigurdsson <gilli@vx.is>
-Jacek Szafarkiewicz <szafar@linux.pl>
-Jakob Borg <jakob@nym.se>
-Jake Peterson <jake@acogdev.com>
-James Patterson <jamespatterson@operamail.com> <jpjp@users.noreply.github.com>
-Jaroslav Malec <dzardacz@gmail.com>
-Jens Diemer <github.com@jensdiemer.de> <git@jensdiemer.de>
-Jochen Voss <voss@seehuhn.de>
-Johan Vromans <jvromans@squirrel.nl>
-Karol Różycki <rozycki.karol@gmail.com>
-Ken'ichi Kamada <kamada@nanohz.org>
-Lode Hoste <zillode@zillode.be>
-Lord Landon Agahnim <lordlandon@gmail.com>
-Marc Laporte <marc@marclaporte.com> <marc@laporte.name>
-Marc Pujol <kilburn@la3.org>
-Marcin Dziadus <dziadus.marcin@gmail.com>
-Mateusz Naściszewski <matin1111@wp.pl>
-Matt Burke <mburke@amplify.com> <burkemw3@gmail.com>
-Michael Jephcote <rewt0r@gmx.com> <Rewt0r@users.noreply.github.com>
-Michael Tilli <pyfisch@gmail.com>
-Pascal Jungblut <github@pascalj.com> <mail@pascal-jungblut.com>
-Peter Hoeg <peter@speartail.com>
-Philippe Schommers <philippe@schommers.be>
-Phill Luby <phill.luby@newredo.com>
-Piotr Bejda <piotrb10@gmail.com>
-Ryan Sullivan <kayoticsully@gmail.com>
-Sergey Mishin <ralder@yandex.ru>
-Stefan Tatschner <stefan@sevenbyte.org> <rumpelsepp@sevenbyte.org>
-Stefan Kuntz <stefan.github@gmail.com> <Stefan.github@gmail.com>
-Tim Abell <tim@timwise.co.uk>
-Tobias Nygren <tnn@nygren.pp.se>
-Tomas Cerveny <kozec@kozec.com>
-Tully Robinson <tully@tojr.org>
-Tyler Brazier <tyler@tylerbrazier.com>
-Veeti Paananen <veeti.paananen@rojekti.fi>
-Vil Brekin <vilbrekin@gmail.com>
-Yannic A. <eipiminusone+github@gmail.com> <eipiminus1@users.noreply.github.com>

CONDUCT.md

@@ -1,92 +0,0 @@
-## Conduct
-
-* We are committed to providing a friendly, safe and welcoming
-  environment for all, regardless of gender, sexual orientation,
-  disability, ethnicity, religion, or similar personal characteristic.
-
-* On IRC, please avoid using overtly sexual nicknames or other nicknames
-  that might detract from a friendly, safe and welcoming environment for
-  all.
-
-* Please be kind and courteous. There's no need to be mean or rude.
-
-* Respect that people have differences of opinion and that every design
-  or implementation choice carries a trade-off and numerous costs. There
-  is seldom a right answer.
-
-* Please keep unstructured critique to a minimum. If you have solid
-  ideas you want to experiment with, make a fork and see how it works.
-
-* We will exclude you from interaction if you insult, demean or harass
-  anyone. That is not welcome behaviour. We interpret the term
-  "harassment" as including the definition in the <a
-  href="http://citizencodeofconduct.org/">Citizen Code of Conduct</a>;
-  if you have any lack of clarity about what might be included in that
-  concept, please read their definition. In particular, we don't
-  tolerate behavior that excludes people in socially marginalized
-  groups.
-
-* Private harassment is also unacceptable. No matter who you are, if you
-  feel you have been or are being harassed or made uncomfortable by a
-  community member, please contact one of the channel ops or any of the
-  Syncthing core team immediately. Whether you're a regular  contributor
-  or a newcomer, we care about making this community a safe place for
-  you and we've got your back.
-
-* Likewise any spamming, trolling, flaming, baiting or other
-  attention-stealing behaviour is not welcome.
-
-## Moderation
-
-These are the policies for upholding our community's standards of
-conduct in our communication channels, most notably in Syncthing-related
-IRC channels and on the web forum.
-
-1. Remarks that violate the Syncthing standards of conduct, including
-   hateful, hurtful, oppressive, or exclusionary remarks, are not
-   allowed. (Cursing is allowed, but never targeting another user, and
-   never in a hateful manner.)
-
-2. Remarks that moderators find inappropriate, whether listed in the
-   code of conduct or not, are also not allowed.
-
-3. Moderators will first respond to such remarks with a warning.
-
-4. If the warning is unheeded, the user will be "kicked," i.e., kicked
-   out of the communication channel to cool off.
-
-5. If the user comes back and continues to make trouble, they will be
-   banned, i.e., indefinitely excluded.
-
-6. Moderators may choose at their discretion to un-ban the user if it
-   was a first offense and they offer the offended party a genuine
-   apology.
-
-7. If a moderator bans someone and you think it was unjustified, please
-   take it up with that moderator, or with a different moderator, **in
-   private**. Complaints about bans in-channel are not allowed.
-
-8. Moderators are held to a higher standard than other community
-   members. If a moderator creates an inappropriate situation, they
-   should expect less leeway than others.
-
-In the Syncthing community we strive to go the extra step to look out
-for each other. Don't just aim to be technically unimpeachable, try to
-be your best self. In particular, avoid flirting with offensive or
-sensitive issues, particularly if they're off-topic; this all too
-often leads to unnecessary fights, hurt feelings, and damaged trust;
-worse, it can drive people away from the community entirely.
-
-And if someone takes issue with something you said or did, resist the
-urge to be defensive. Just stop doing what it was they complained about
-and apologize. Even if you feel you were misinterpreted or unfairly
-accused, chances are good there was something you could've communicated
-better — remember that it's your responsibility to make your fellow
-community members comfortable. Everyone wants to get along and we are
-all here first and foremost because we want to talk about cool
-technology. You will find that people will be eager to assume good
-intent and forgive as long as you earn their trust.
-
-*Adapted from the [Rust Code of Conduct](https://github.com/rust-lang/rust/wiki/Note-development-policy#conduct)*
-
-*Adapted from the [Node.js Policy on Trolling](http://blog.izs.me/post/30036893703/policy-on-trolling)*

CONTRIBUTING.md

@@ -12,7 +12,7 @@ least the following:
  - What operating system, operating system version and version of
    Syncthing you are running
 
- - The same for other connected devices, where relevant
+ - The same for other connected nodes, where relevant
 
  - Screenshot if the issue concerns something visible in the GUI
 
@@ -31,22 +31,74 @@ latest info on Transifex.
 
 ## Contributing Code
 
-Every contribution is welcome. If you want to contribute but are unsure
-where to start, any open issues are fair game! See the [Contribution
-Guidelines](http://docs.syncthing.net/dev/contributing.html) for the full
-story on committing code.
+Please do contribute! If you want to contribute but are unsure where to
+start, the [Contributions Needed
+topic](http://discourse.syncthing.net/t/49) lists areas in need of
+attention. In general, any open issues are fair game! Be prepared for a
+[certain amount of
+review](https://discourse.syncthing.net/t/733); it's all in the name of
+quality. :)
 
-## Contributing Documentation
+You may be asked to "rebase" or "squash" your pull request before it's
+accepted. This means to make sure that the pull request:
 
-Updates to the [documentation site](http://docs.syncthing.net/) can be
-made as pull requests on the [documentation
-repository](https://github.com/syncthing/docs).
+ - Is based on the latest commit on `master`.
+
+ - Only contains a single commit (exceptions to be made where
+   appropriate).
+
+ - Has a descriptive commit message, ending in `(fixes #123)` if it
+   resolves an existing issue.
 
 ## Licensing
 
-All contributions are made under the same MPLv2 license as the rest of
-the project, except documentation, user interface text and translation
-strings which are licensed under the Creative Commons Attribution 4.0
-International License. You retain the copyright to code you have
-written.
+All contributions are made under the same MIT License as the rest of the
+project, except documentation which is licensed under the Creative
+Commons Attribution 4.0 International License. You retain the copyright
+to code you have written.
 
+When accepting your first contribution, the maintainer of the project
+will ensure that you are added to the CONTRIBUTORS file. You are welcome
+to add yourself as a separate commit in your first pull request.
+
+## Building
+
+[See the documentation](http://discourse.syncthing.net/t/44) on how to
+get started with a build environment.
+
+## Branches
+
+ - `master` is the main branch containing good code that will end up in
+   the next release. You should base your work on it. It won't ever be
+   rebased or force-pushed to.
+
+ - `vx.y` branches exist to make patch releases on otherwise obsolete
+   minor releases. Should only contain fixes cherry picked from master.
+   Don't base any work on them.
+
+ - Other branches are probably topic branches and may be subject to
+   rebasing. Don't base any work on them unless you specifically know
+   otherwise.
+
+## Tags
+
+All releases are tagged semver style as `vx.y.z`. Release tags are
+signed by GPG key BCE524C7.
+
+## Tests
+
+Yes please!
+
+## Style
+
+ - `go fmt`
+
+ - Unix line breaks
+
+## Documentation
+
+[Over here!](http://discourse.syncthing.net/category/documentation)
+
+## License
+
+MIT

CONTRIBUTORS

@@ -0,0 +1,17 @@
+Aaron Bieber <qbit@deftly.net>
+Alexander Graf <register-github@alex-graf.de>
+Andrew Dunham <andrew@du.nham.ca>
+Audrius Butkevicius <audrius.butkevicius@gmail.com>
+Arthur Axel fREW Schmidt <frew@afoolishmanifesto.com> <frioux@gmail.com>
+Ben Sidhom <bsidhom@gmail.com>
+Brandon Philips <brandon@ifup.org>
+Gilli Sigurdsson <gilli@vx.is>
+James Patterson <jamespatterson@operamail.com> <jpjp@users.noreply.github.com>
+Jens Diemer <github.com@jensdiemer.de> <git@jensdiemer.de>
+Lode Hoste <zillode@zillode.be>
+Marcin Dziadus <dziadus.marcin@gmail.com>
+Michael Tilli <pyfisch@gmail.com>
+Philippe Schommers <philippe@schommers.be>
+Ryan Sullivan <kayoticsully@gmail.com>
+Tully Robinson <tully@tojr.org>
+Veeti Paananen <veeti.paananen@rojekti.fi>

Godeps/Godeps.json

@@ -1,50 +1,55 @@
 {
 	"ImportPath": "github.com/syncthing/syncthing",
-	"GoVersion": "go1.5.1",
+	"GoVersion": "go1.3.1",
 	"Packages": [
 		"./cmd/..."
 	],
 	"Deps": [
+		{
+			"ImportPath": "bitbucket.org/kardianos/osext",
+			"Comment": "null-13",
+			"Rev": "5d3ddcf53a508cc2f7404eaebf546ef2cb5cdb6e"
+		},
+		{
+			"ImportPath": "code.google.com/p/go.crypto/bcrypt",
+			"Comment": "null-216",
+			"Rev": "41cd4647fccc72b0b79ef1bd1fe6735e718257cd"
+		},
+		{
+			"ImportPath": "code.google.com/p/go.crypto/blowfish",
+			"Comment": "null-216",
+			"Rev": "41cd4647fccc72b0b79ef1bd1fe6735e718257cd"
+		},
+		{
+			"ImportPath": "code.google.com/p/go.text/transform",
+			"Comment": "null-90",
+			"Rev": "d65bffbc88a153d23a6d2a864531e6e7c2cde59b"
+		},
+		{
+			"ImportPath": "code.google.com/p/go.text/unicode/norm",
+			"Comment": "null-90",
+			"Rev": "d65bffbc88a153d23a6d2a864531e6e7c2cde59b"
+		},
+		{
+			"ImportPath": "code.google.com/p/snappy-go/snappy",
+			"Comment": "null-15",
+			"Rev": "12e4b4183793ac4b061921e7980845e750679fd0"
+		},
 		{
 			"ImportPath": "github.com/bkaradzic/go-lz4",
-			"Rev": "74ddf82598bc4745b965729e9c6a463bedd33049"
-		},
-		{
-			"ImportPath": "github.com/calmh/du",
-			"Rev": "3c0690cca16228b97741327b1b6781397afbdb24"
-		},
-		{
-			"ImportPath": "github.com/calmh/luhn",
-			"Rev": "0c8388ff95fa92d4094011e5a04fc99dea3d1632"
+			"Rev": "93a831dcee242be64a9cc9803dda84af25932de7"
 		},
 		{
 			"ImportPath": "github.com/calmh/xdr",
-			"Rev": "47c0042d09a827b81ee62497f99e5e0c7f0bd31c"
-		},
-		{
-			"ImportPath": "github.com/golang/snappy",
-			"Rev": "723cc1e459b8eea2dea4583200fd60757d40097a"
+			"Rev": "a597b63b87d6140f79084c8aab214b4d533833a1"
 		},
 		{
 			"ImportPath": "github.com/juju/ratelimit",
-			"Rev": "772f5c38e468398c4511514f4f6aa9a4185bc0a0"
-		},
-		{
-			"ImportPath": "github.com/kardianos/osext",
-			"Rev": "6e7f843663477789fac7c02def0d0909e969b4e5"
-		},
-		{
-			"ImportPath": "github.com/rcrowley/go-metrics",
-			"Rev": "1ce93efbc8f9c568886b2ef85ce305b2217b3de3"
+			"Rev": "f9f36d11773655c0485207f0ad30dc2655f69d56"
 		},
 		{
 			"ImportPath": "github.com/syndtr/goleveldb/leveldb",
-			"Rev": "1a9d62f03ea92815b46fcaab357cfd4df264b1a0"
-		},
-		{
-			"ImportPath": "github.com/thejerf/suture",
-			"Comment": "v1.0.1",
-			"Rev": "99c1f2d613756768fc4299acd9dc621e11ed3fd7"
+			"Rev": "9bca75c48d6c31becfbb127702b425e7226052e3"
 		},
 		{
 			"ImportPath": "github.com/vitrun/qart/coding",
@@ -57,34 +62,6 @@
 		{
 			"ImportPath": "github.com/vitrun/qart/qr",
 			"Rev": "ccb109cf25f0cd24474da73b9fee4e7a3e8a8ce0"
-		},
-		{
-			"ImportPath": "golang.org/x/crypto/bcrypt",
-			"Rev": "575fdbe86e5dd89229707ebec0575ce7d088a4a6"
-		},
-		{
-			"ImportPath": "golang.org/x/crypto/blowfish",
-			"Rev": "575fdbe86e5dd89229707ebec0575ce7d088a4a6"
-		},
-		{
-			"ImportPath": "golang.org/x/net/internal/iana",
-			"Rev": "042ba42fa6633b34205efc66ba5719cd3afd8d38"
-		},
-		{
-			"ImportPath": "golang.org/x/net/ipv6",
-			"Rev": "042ba42fa6633b34205efc66ba5719cd3afd8d38"
-		},
-		{
-			"ImportPath": "golang.org/x/net/proxy",
-			"Rev": "042ba42fa6633b34205efc66ba5719cd3afd8d38"
-		},
-		{
-			"ImportPath": "golang.org/x/text/transform",
-			"Rev": "5eb8d4684c4796dd36c74f6452f2c0fa6c79597e"
-		},
-		{
-			"ImportPath": "golang.org/x/text/unicode/norm",
-			"Rev": "5eb8d4684c4796dd36c74f6452f2c0fa6c79597e"
 		}
 	]
 }

Godeps/_workspace/src/bitbucket.org/kardianos/osext/LICENSE

@@ -0,0 +1,20 @@
+Copyright (c) 2012 Daniel Theophanes
+
+This software is provided 'as-is', without any express or implied
+warranty. In no event will the authors be held liable for any damages
+arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+
+   1. The origin of this software must not be misrepresented; you must not
+   claim that you wrote the original software. If you use this software
+   in a product, an acknowledgment in the product documentation would be
+   appreciated but is not required.
+
+   2. Altered source versions must be plainly marked as such, and must not be
+   misrepresented as being the original software.
+
+   3. This notice may not be removed or altered from any source
+   distribution.

Godeps/_workspace/src/bitbucket.org/kardianos/osext/osext.go

@@ -16,12 +16,17 @@ func Executable() (string, error) {
 }
 
 // Returns same path as Executable, returns just the folder
-// path. Excludes the executable name and any trailing slash.
+// path. Excludes the executable name.
 func ExecutableFolder() (string, error) {
 	p, err := Executable()
 	if err != nil {
 		return "", err
 	}
-
-	return filepath.Dir(p), nil
+	folder, _ := filepath.Split(p)
+	return folder, nil
+}
+
+// Depricated. Same as Executable().
+func GetExePath() (exePath string, err error) {
+	return Executable()
 }

Godeps/_workspace/src/bitbucket.org/kardianos/osext/osext_plan9.go

@@ -5,16 +5,16 @@
 package osext
 
 import (
-	"os"
-	"strconv"
-	"syscall"
+    "syscall"
+    "os"
+    "strconv"
 )
 
 func executable() (string, error) {
-	f, err := os.Open("/proc/" + strconv.Itoa(os.Getpid()) + "/text")
-	if err != nil {
-		return "", err
-	}
-	defer f.Close()
-	return syscall.Fd2path(int(f.Fd()))
+    f, err := os.Open("/proc/" + strconv.Itoa(os.Getpid()) + "/text")
+    if err != nil {
+        return "", err
+    }
+    defer f.Close()
+    return syscall.Fd2path(int(f.Fd()))
 }

Godeps/_workspace/src/bitbucket.org/kardianos/osext/osext_procfs.go

@@ -2,35 +2,24 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build linux netbsd openbsd solaris dragonfly
+// +build linux netbsd openbsd
 
 package osext
 
 import (
 	"errors"
-	"fmt"
 	"os"
 	"runtime"
-	"strings"
 )
 
 func executable() (string, error) {
 	switch runtime.GOOS {
 	case "linux":
-		const deletedTag = " (deleted)"
-		execpath, err := os.Readlink("/proc/self/exe")
-		if err != nil {
-			return execpath, err
-		}
-		execpath = strings.TrimSuffix(execpath, deletedTag)
-		execpath = strings.TrimPrefix(execpath, deletedTag)
-		return execpath, nil
+		return os.Readlink("/proc/self/exe")
 	case "netbsd":
 		return os.Readlink("/proc/curproc/exe")
-	case "openbsd", "dragonfly":
+	case "openbsd":
 		return os.Readlink("/proc/curproc/file")
-	case "solaris":
-		return os.Readlink(fmt.Sprintf("/proc/%d/path/a.out", os.Getpid()))
 	}
 	return "", errors.New("ExecPath not implemented for " + runtime.GOOS)
 }

Godeps/_workspace/src/bitbucket.org/kardianos/osext/osext_test.go

@@ -0,0 +1,79 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build darwin linux freebsd netbsd windows
+
+package osext
+
+import (
+	"fmt"
+	"os"
+	oexec "os/exec"
+	"path/filepath"
+	"runtime"
+	"testing"
+)
+
+const execPath_EnvVar = "OSTEST_OUTPUT_EXECPATH"
+
+func TestExecPath(t *testing.T) {
+	ep, err := Executable()
+	if err != nil {
+		t.Fatalf("ExecPath failed: %v", err)
+	}
+	// we want fn to be of the form "dir/prog"
+	dir := filepath.Dir(filepath.Dir(ep))
+	fn, err := filepath.Rel(dir, ep)
+	if err != nil {
+		t.Fatalf("filepath.Rel: %v", err)
+	}
+	cmd := &oexec.Cmd{}
+	// make child start with a relative program path
+	cmd.Dir = dir
+	cmd.Path = fn
+	// forge argv[0] for child, so that we can verify we could correctly
+	// get real path of the executable without influenced by argv[0].
+	cmd.Args = []string{"-", "-test.run=XXXX"}
+	cmd.Env = []string{fmt.Sprintf("%s=1", execPath_EnvVar)}
+	out, err := cmd.CombinedOutput()
+	if err != nil {
+		t.Fatalf("exec(self) failed: %v", err)
+	}
+	outs := string(out)
+	if !filepath.IsAbs(outs) {
+		t.Fatalf("Child returned %q, want an absolute path", out)
+	}
+	if !sameFile(outs, ep) {
+		t.Fatalf("Child returned %q, not the same file as %q", out, ep)
+	}
+}
+
+func sameFile(fn1, fn2 string) bool {
+	fi1, err := os.Stat(fn1)
+	if err != nil {
+		return false
+	}
+	fi2, err := os.Stat(fn2)
+	if err != nil {
+		return false
+	}
+	return os.SameFile(fi1, fi2)
+}
+
+func init() {
+	if e := os.Getenv(execPath_EnvVar); e != "" {
+		// first chdir to another path
+		dir := "/"
+		if runtime.GOOS == "windows" {
+			dir = filepath.VolumeName(".")
+		}
+		os.Chdir(dir)
+		if ep, err := Executable(); err != nil {
+			fmt.Fprint(os.Stderr, "ERROR: ", err)
+		} else {
+			fmt.Fprint(os.Stderr, ep)
+		}
+		os.Exit(0)
+	}
+}

Godeps/_workspace/src/code.google.com/p/go.crypto/bcrypt/bcrypt.go

@@ -8,11 +8,11 @@ package bcrypt
 
 // The code is a port of Provos and Mazières's C implementation.
 import (
+	"code.google.com/p/go.crypto/blowfish"
 	"crypto/rand"
 	"crypto/subtle"
 	"errors"
 	"fmt"
-	"golang.org/x/crypto/blowfish"
 	"io"
 	"strconv"
 )

Godeps/_workspace/src/code.google.com/p/go.crypto/bcrypt/bcrypt_test.go

@@ -0,0 +1,226 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package bcrypt
+
+import (
+	"bytes"
+	"fmt"
+	"testing"
+)
+
+func TestBcryptingIsEasy(t *testing.T) {
+	pass := []byte("mypassword")
+	hp, err := GenerateFromPassword(pass, 0)
+	if err != nil {
+		t.Fatalf("GenerateFromPassword error: %s", err)
+	}
+
+	if CompareHashAndPassword(hp, pass) != nil {
+		t.Errorf("%v should hash %s correctly", hp, pass)
+	}
+
+	notPass := "notthepass"
+	err = CompareHashAndPassword(hp, []byte(notPass))
+	if err != ErrMismatchedHashAndPassword {
+		t.Errorf("%v and %s should be mismatched", hp, notPass)
+	}
+}
+
+func TestBcryptingIsCorrect(t *testing.T) {
+	pass := []byte("allmine")
+	salt := []byte("XajjQvNhvvRt5GSeFk1xFe")
+	expectedHash := []byte("$2a$10$XajjQvNhvvRt5GSeFk1xFeyqRrsxkhBkUiQeg0dt.wU1qD4aFDcga")
+
+	hash, err := bcrypt(pass, 10, salt)
+	if err != nil {
+		t.Fatalf("bcrypt blew up: %v", err)
+	}
+	if !bytes.HasSuffix(expectedHash, hash) {
+		t.Errorf("%v should be the suffix of %v", hash, expectedHash)
+	}
+
+	h, err := newFromHash(expectedHash)
+	if err != nil {
+		t.Errorf("Unable to parse %s: %v", string(expectedHash), err)
+	}
+
+	// This is not the safe way to compare these hashes. We do this only for
+	// testing clarity. Use bcrypt.CompareHashAndPassword()
+	if err == nil && !bytes.Equal(expectedHash, h.Hash()) {
+		t.Errorf("Parsed hash %v should equal %v", h.Hash(), expectedHash)
+	}
+}
+
+func TestVeryShortPasswords(t *testing.T) {
+	key := []byte("k")
+	salt := []byte("XajjQvNhvvRt5GSeFk1xFe")
+	_, err := bcrypt(key, 10, salt)
+	if err != nil {
+		t.Errorf("One byte key resulted in error: %s", err)
+	}
+}
+
+func TestTooLongPasswordsWork(t *testing.T) {
+	salt := []byte("XajjQvNhvvRt5GSeFk1xFe")
+	// One byte over the usual 56 byte limit that blowfish has
+	tooLongPass := []byte("012345678901234567890123456789012345678901234567890123456")
+	tooLongExpected := []byte("$2a$10$XajjQvNhvvRt5GSeFk1xFe5l47dONXg781AmZtd869sO8zfsHuw7C")
+	hash, err := bcrypt(tooLongPass, 10, salt)
+	if err != nil {
+		t.Fatalf("bcrypt blew up on long password: %v", err)
+	}
+	if !bytes.HasSuffix(tooLongExpected, hash) {
+		t.Errorf("%v should be the suffix of %v", hash, tooLongExpected)
+	}
+}
+
+type InvalidHashTest struct {
+	err  error
+	hash []byte
+}
+
+var invalidTests = []InvalidHashTest{
+	{ErrHashTooShort, []byte("$2a$10$fooo")},
+	{ErrHashTooShort, []byte("$2a")},
+	{HashVersionTooNewError('3'), []byte("$3a$10$sssssssssssssssssssssshhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh")},
+	{InvalidHashPrefixError('%'), []byte("%2a$10$sssssssssssssssssssssshhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh")},
+	{InvalidCostError(32), []byte("$2a$32$sssssssssssssssssssssshhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh")},
+}
+
+func TestInvalidHashErrors(t *testing.T) {
+	check := func(name string, expected, err error) {
+		if err == nil {
+			t.Errorf("%s: Should have returned an error", name)
+		}
+		if err != nil && err != expected {
+			t.Errorf("%s gave err %v but should have given %v", name, err, expected)
+		}
+	}
+	for _, iht := range invalidTests {
+		_, err := newFromHash(iht.hash)
+		check("newFromHash", iht.err, err)
+		err = CompareHashAndPassword(iht.hash, []byte("anything"))
+		check("CompareHashAndPassword", iht.err, err)
+	}
+}
+
+func TestUnpaddedBase64Encoding(t *testing.T) {
+	original := []byte{101, 201, 101, 75, 19, 227, 199, 20, 239, 236, 133, 32, 30, 109, 243, 30}
+	encodedOriginal := []byte("XajjQvNhvvRt5GSeFk1xFe")
+
+	encoded := base64Encode(original)
+
+	if !bytes.Equal(encodedOriginal, encoded) {
+		t.Errorf("Encoded %v should have equaled %v", encoded, encodedOriginal)
+	}
+
+	decoded, err := base64Decode(encodedOriginal)
+	if err != nil {
+		t.Fatalf("base64Decode blew up: %s", err)
+	}
+
+	if !bytes.Equal(decoded, original) {
+		t.Errorf("Decoded %v should have equaled %v", decoded, original)
+	}
+}
+
+func TestCost(t *testing.T) {
+	suffix := "XajjQvNhvvRt5GSeFk1xFe5l47dONXg781AmZtd869sO8zfsHuw7C"
+	for _, vers := range []string{"2a", "2"} {
+		for _, cost := range []int{4, 10} {
+			s := fmt.Sprintf("$%s$%02d$%s", vers, cost, suffix)
+			h := []byte(s)
+			actual, err := Cost(h)
+			if err != nil {
+				t.Errorf("Cost, error: %s", err)
+				continue
+			}
+			if actual != cost {
+				t.Errorf("Cost, expected: %d, actual: %d", cost, actual)
+			}
+		}
+	}
+	_, err := Cost([]byte("$a$a$" + suffix))
+	if err == nil {
+		t.Errorf("Cost, malformed but no error returned")
+	}
+}
+
+func TestCostValidationInHash(t *testing.T) {
+	if testing.Short() {
+		return
+	}
+
+	pass := []byte("mypassword")
+
+	for c := 0; c < MinCost; c++ {
+		p, _ := newFromPassword(pass, c)
+		if p.cost != DefaultCost {
+			t.Errorf("newFromPassword should default costs below %d to %d, but was %d", MinCost, DefaultCost, p.cost)
+		}
+	}
+
+	p, _ := newFromPassword(pass, 14)
+	if p.cost != 14 {
+		t.Errorf("newFromPassword should default cost to 14, but was %d", p.cost)
+	}
+
+	hp, _ := newFromHash(p.Hash())
+	if p.cost != hp.cost {
+		t.Errorf("newFromHash should maintain the cost at %d, but was %d", p.cost, hp.cost)
+	}
+
+	_, err := newFromPassword(pass, 32)
+	if err == nil {
+		t.Fatalf("newFromPassword: should return a cost error")
+	}
+	if err != InvalidCostError(32) {
+		t.Errorf("newFromPassword: should return cost error, got %#v", err)
+	}
+}
+
+func TestCostReturnsWithLeadingZeroes(t *testing.T) {
+	hp, _ := newFromPassword([]byte("abcdefgh"), 7)
+	cost := hp.Hash()[4:7]
+	expected := []byte("07$")
+
+	if !bytes.Equal(expected, cost) {
+		t.Errorf("single digit costs in hash should have leading zeros: was %v instead of %v", cost, expected)
+	}
+}
+
+func TestMinorNotRequired(t *testing.T) {
+	noMinorHash := []byte("$2$10$XajjQvNhvvRt5GSeFk1xFeyqRrsxkhBkUiQeg0dt.wU1qD4aFDcga")
+	h, err := newFromHash(noMinorHash)
+	if err != nil {
+		t.Fatalf("No minor hash blew up: %s", err)
+	}
+	if h.minor != 0 {
+		t.Errorf("Should leave minor version at 0, but was %d", h.minor)
+	}
+
+	if !bytes.Equal(noMinorHash, h.Hash()) {
+		t.Errorf("Should generate hash %v, but created %v", noMinorHash, h.Hash())
+	}
+}
+
+func BenchmarkEqual(b *testing.B) {
+	b.StopTimer()
+	passwd := []byte("somepasswordyoulike")
+	hash, _ := GenerateFromPassword(passwd, 10)
+	b.StartTimer()
+	for i := 0; i < b.N; i++ {
+		CompareHashAndPassword(hash, passwd)
+	}
+}
+
+func BenchmarkGeneration(b *testing.B) {
+	b.StopTimer()
+	passwd := []byte("mylongpassword1234")
+	b.StartTimer()
+	for i := 0; i < b.N; i++ {
+		GenerateFromPassword(passwd, 10)
+	}
+}

Godeps/_workspace/src/code.google.com/p/go.crypto/blowfish/blowfish_test.go

@@ -0,0 +1,274 @@
+// Copyright 2010 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package blowfish
+
+import "testing"
+
+type CryptTest struct {
+	key []byte
+	in  []byte
+	out []byte
+}
+
+// Test vector values are from http://www.schneier.com/code/vectors.txt.
+var encryptTests = []CryptTest{
+	{
+		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+		[]byte{0x4E, 0xF9, 0x97, 0x45, 0x61, 0x98, 0xDD, 0x78}},
+	{
+		[]byte{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
+		[]byte{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
+		[]byte{0x51, 0x86, 0x6F, 0xD5, 0xB8, 0x5E, 0xCB, 0x8A}},
+	{
+		[]byte{0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+		[]byte{0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01},
+		[]byte{0x7D, 0x85, 0x6F, 0x9A, 0x61, 0x30, 0x63, 0xF2}},
+	{
+		[]byte{0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11},
+		[]byte{0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11},
+		[]byte{0x24, 0x66, 0xDD, 0x87, 0x8B, 0x96, 0x3C, 0x9D}},
+
+	{
+		[]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF},
+		[]byte{0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11},
+		[]byte{0x61, 0xF9, 0xC3, 0x80, 0x22, 0x81, 0xB0, 0x96}},
+	{
+		[]byte{0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11},
+		[]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF},
+		[]byte{0x7D, 0x0C, 0xC6, 0x30, 0xAF, 0xDA, 0x1E, 0xC7}},
+	{
+		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+		[]byte{0x4E, 0xF9, 0x97, 0x45, 0x61, 0x98, 0xDD, 0x78}},
+	{
+		[]byte{0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10},
+		[]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF},
+		[]byte{0x0A, 0xCE, 0xAB, 0x0F, 0xC6, 0xA0, 0xA2, 0x8D}},
+	{
+		[]byte{0x7C, 0xA1, 0x10, 0x45, 0x4A, 0x1A, 0x6E, 0x57},
+		[]byte{0x01, 0xA1, 0xD6, 0xD0, 0x39, 0x77, 0x67, 0x42},
+		[]byte{0x59, 0xC6, 0x82, 0x45, 0xEB, 0x05, 0x28, 0x2B}},
+	{
+		[]byte{0x01, 0x31, 0xD9, 0x61, 0x9D, 0xC1, 0x37, 0x6E},
+		[]byte{0x5C, 0xD5, 0x4C, 0xA8, 0x3D, 0xEF, 0x57, 0xDA},
+		[]byte{0xB1, 0xB8, 0xCC, 0x0B, 0x25, 0x0F, 0x09, 0xA0}},
+	{
+		[]byte{0x07, 0xA1, 0x13, 0x3E, 0x4A, 0x0B, 0x26, 0x86},
+		[]byte{0x02, 0x48, 0xD4, 0x38, 0x06, 0xF6, 0x71, 0x72},
+		[]byte{0x17, 0x30, 0xE5, 0x77, 0x8B, 0xEA, 0x1D, 0xA4}},
+	{
+		[]byte{0x38, 0x49, 0x67, 0x4C, 0x26, 0x02, 0x31, 0x9E},
+		[]byte{0x51, 0x45, 0x4B, 0x58, 0x2D, 0xDF, 0x44, 0x0A},
+		[]byte{0xA2, 0x5E, 0x78, 0x56, 0xCF, 0x26, 0x51, 0xEB}},
+	{
+		[]byte{0x04, 0xB9, 0x15, 0xBA, 0x43, 0xFE, 0xB5, 0xB6},
+		[]byte{0x42, 0xFD, 0x44, 0x30, 0x59, 0x57, 0x7F, 0xA2},
+		[]byte{0x35, 0x38, 0x82, 0xB1, 0x09, 0xCE, 0x8F, 0x1A}},
+	{
+		[]byte{0x01, 0x13, 0xB9, 0x70, 0xFD, 0x34, 0xF2, 0xCE},
+		[]byte{0x05, 0x9B, 0x5E, 0x08, 0x51, 0xCF, 0x14, 0x3A},
+		[]byte{0x48, 0xF4, 0xD0, 0x88, 0x4C, 0x37, 0x99, 0x18}},
+	{
+		[]byte{0x01, 0x70, 0xF1, 0x75, 0x46, 0x8F, 0xB5, 0xE6},
+		[]byte{0x07, 0x56, 0xD8, 0xE0, 0x77, 0x47, 0x61, 0xD2},
+		[]byte{0x43, 0x21, 0x93, 0xB7, 0x89, 0x51, 0xFC, 0x98}},
+	{
+		[]byte{0x43, 0x29, 0x7F, 0xAD, 0x38, 0xE3, 0x73, 0xFE},
+		[]byte{0x76, 0x25, 0x14, 0xB8, 0x29, 0xBF, 0x48, 0x6A},
+		[]byte{0x13, 0xF0, 0x41, 0x54, 0xD6, 0x9D, 0x1A, 0xE5}},
+	{
+		[]byte{0x07, 0xA7, 0x13, 0x70, 0x45, 0xDA, 0x2A, 0x16},
+		[]byte{0x3B, 0xDD, 0x11, 0x90, 0x49, 0x37, 0x28, 0x02},
+		[]byte{0x2E, 0xED, 0xDA, 0x93, 0xFF, 0xD3, 0x9C, 0x79}},
+	{
+		[]byte{0x04, 0x68, 0x91, 0x04, 0xC2, 0xFD, 0x3B, 0x2F},
+		[]byte{0x26, 0x95, 0x5F, 0x68, 0x35, 0xAF, 0x60, 0x9A},
+		[]byte{0xD8, 0x87, 0xE0, 0x39, 0x3C, 0x2D, 0xA6, 0xE3}},
+	{
+		[]byte{0x37, 0xD0, 0x6B, 0xB5, 0x16, 0xCB, 0x75, 0x46},
+		[]byte{0x16, 0x4D, 0x5E, 0x40, 0x4F, 0x27, 0x52, 0x32},
+		[]byte{0x5F, 0x99, 0xD0, 0x4F, 0x5B, 0x16, 0x39, 0x69}},
+	{
+		[]byte{0x1F, 0x08, 0x26, 0x0D, 0x1A, 0xC2, 0x46, 0x5E},
+		[]byte{0x6B, 0x05, 0x6E, 0x18, 0x75, 0x9F, 0x5C, 0xCA},
+		[]byte{0x4A, 0x05, 0x7A, 0x3B, 0x24, 0xD3, 0x97, 0x7B}},
+	{
+		[]byte{0x58, 0x40, 0x23, 0x64, 0x1A, 0xBA, 0x61, 0x76},
+		[]byte{0x00, 0x4B, 0xD6, 0xEF, 0x09, 0x17, 0x60, 0x62},
+		[]byte{0x45, 0x20, 0x31, 0xC1, 0xE4, 0xFA, 0xDA, 0x8E}},
+	{
+		[]byte{0x02, 0x58, 0x16, 0x16, 0x46, 0x29, 0xB0, 0x07},
+		[]byte{0x48, 0x0D, 0x39, 0x00, 0x6E, 0xE7, 0x62, 0xF2},
+		[]byte{0x75, 0x55, 0xAE, 0x39, 0xF5, 0x9B, 0x87, 0xBD}},
+	{
+		[]byte{0x49, 0x79, 0x3E, 0xBC, 0x79, 0xB3, 0x25, 0x8F},
+		[]byte{0x43, 0x75, 0x40, 0xC8, 0x69, 0x8F, 0x3C, 0xFA},
+		[]byte{0x53, 0xC5, 0x5F, 0x9C, 0xB4, 0x9F, 0xC0, 0x19}},
+	{
+		[]byte{0x4F, 0xB0, 0x5E, 0x15, 0x15, 0xAB, 0x73, 0xA7},
+		[]byte{0x07, 0x2D, 0x43, 0xA0, 0x77, 0x07, 0x52, 0x92},
+		[]byte{0x7A, 0x8E, 0x7B, 0xFA, 0x93, 0x7E, 0x89, 0xA3}},
+	{
+		[]byte{0x49, 0xE9, 0x5D, 0x6D, 0x4C, 0xA2, 0x29, 0xBF},
+		[]byte{0x02, 0xFE, 0x55, 0x77, 0x81, 0x17, 0xF1, 0x2A},
+		[]byte{0xCF, 0x9C, 0x5D, 0x7A, 0x49, 0x86, 0xAD, 0xB5}},
+	{
+		[]byte{0x01, 0x83, 0x10, 0xDC, 0x40, 0x9B, 0x26, 0xD6},
+		[]byte{0x1D, 0x9D, 0x5C, 0x50, 0x18, 0xF7, 0x28, 0xC2},
+		[]byte{0xD1, 0xAB, 0xB2, 0x90, 0x65, 0x8B, 0xC7, 0x78}},
+	{
+		[]byte{0x1C, 0x58, 0x7F, 0x1C, 0x13, 0x92, 0x4F, 0xEF},
+		[]byte{0x30, 0x55, 0x32, 0x28, 0x6D, 0x6F, 0x29, 0x5A},
+		[]byte{0x55, 0xCB, 0x37, 0x74, 0xD1, 0x3E, 0xF2, 0x01}},
+	{
+		[]byte{0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01},
+		[]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF},
+		[]byte{0xFA, 0x34, 0xEC, 0x48, 0x47, 0xB2, 0x68, 0xB2}},
+	{
+		[]byte{0x1F, 0x1F, 0x1F, 0x1F, 0x0E, 0x0E, 0x0E, 0x0E},
+		[]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF},
+		[]byte{0xA7, 0x90, 0x79, 0x51, 0x08, 0xEA, 0x3C, 0xAE}},
+	{
+		[]byte{0xE0, 0xFE, 0xE0, 0xFE, 0xF1, 0xFE, 0xF1, 0xFE},
+		[]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF},
+		[]byte{0xC3, 0x9E, 0x07, 0x2D, 0x9F, 0xAC, 0x63, 0x1D}},
+	{
+		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+		[]byte{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
+		[]byte{0x01, 0x49, 0x33, 0xE0, 0xCD, 0xAF, 0xF6, 0xE4}},
+	{
+		[]byte{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
+		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+		[]byte{0xF2, 0x1E, 0x9A, 0x77, 0xB7, 0x1C, 0x49, 0xBC}},
+	{
+		[]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF},
+		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+		[]byte{0x24, 0x59, 0x46, 0x88, 0x57, 0x54, 0x36, 0x9A}},
+	{
+		[]byte{0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10},
+		[]byte{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
+		[]byte{0x6B, 0x5C, 0x5A, 0x9C, 0x5D, 0x9E, 0x0A, 0x5A}},
+}
+
+func TestCipherEncrypt(t *testing.T) {
+	for i, tt := range encryptTests {
+		c, err := NewCipher(tt.key)
+		if err != nil {
+			t.Errorf("NewCipher(%d bytes) = %s", len(tt.key), err)
+			continue
+		}
+		ct := make([]byte, len(tt.out))
+		c.Encrypt(ct, tt.in)
+		for j, v := range ct {
+			if v != tt.out[j] {
+				t.Errorf("Cipher.Encrypt, test vector #%d: cipher-text[%d] = %#x, expected %#x", i, j, v, tt.out[j])
+				break
+			}
+		}
+	}
+}
+
+func TestCipherDecrypt(t *testing.T) {
+	for i, tt := range encryptTests {
+		c, err := NewCipher(tt.key)
+		if err != nil {
+			t.Errorf("NewCipher(%d bytes) = %s", len(tt.key), err)
+			continue
+		}
+		pt := make([]byte, len(tt.in))
+		c.Decrypt(pt, tt.out)
+		for j, v := range pt {
+			if v != tt.in[j] {
+				t.Errorf("Cipher.Decrypt, test vector #%d: plain-text[%d] = %#x, expected %#x", i, j, v, tt.in[j])
+				break
+			}
+		}
+	}
+}
+
+func TestSaltedCipherKeyLength(t *testing.T) {
+	if _, err := NewSaltedCipher(nil, []byte{'a'}); err != KeySizeError(0) {
+		t.Errorf("NewSaltedCipher with short key, gave error %#v, expected %#v", err, KeySizeError(0))
+	}
+
+	// A 57-byte key. One over the typical blowfish restriction.
+	key := []byte("012345678901234567890123456789012345678901234567890123456")
+	if _, err := NewSaltedCipher(key, []byte{'a'}); err != nil {
+		t.Errorf("NewSaltedCipher with long key, gave error %#v", err)
+	}
+}
+
+// Test vectors generated with Blowfish from OpenSSH.
+var saltedVectors = [][8]byte{
+	{0x0c, 0x82, 0x3b, 0x7b, 0x8d, 0x01, 0x4b, 0x7e},
+	{0xd1, 0xe1, 0x93, 0xf0, 0x70, 0xa6, 0xdb, 0x12},
+	{0xfc, 0x5e, 0xba, 0xde, 0xcb, 0xf8, 0x59, 0xad},
+	{0x8a, 0x0c, 0x76, 0xe7, 0xdd, 0x2c, 0xd3, 0xa8},
+	{0x2c, 0xcb, 0x7b, 0xee, 0xac, 0x7b, 0x7f, 0xf8},
+	{0xbb, 0xf6, 0x30, 0x6f, 0xe1, 0x5d, 0x62, 0xbf},
+	{0x97, 0x1e, 0xc1, 0x3d, 0x3d, 0xe0, 0x11, 0xe9},
+	{0x06, 0xd7, 0x4d, 0xb1, 0x80, 0xa3, 0xb1, 0x38},
+	{0x67, 0xa1, 0xa9, 0x75, 0x0e, 0x5b, 0xc6, 0xb4},
+	{0x51, 0x0f, 0x33, 0x0e, 0x4f, 0x67, 0xd2, 0x0c},
+	{0xf1, 0x73, 0x7e, 0xd8, 0x44, 0xea, 0xdb, 0xe5},
+	{0x14, 0x0e, 0x16, 0xce, 0x7f, 0x4a, 0x9c, 0x7b},
+	{0x4b, 0xfe, 0x43, 0xfd, 0xbf, 0x36, 0x04, 0x47},
+	{0xb1, 0xeb, 0x3e, 0x15, 0x36, 0xa7, 0xbb, 0xe2},
+	{0x6d, 0x0b, 0x41, 0xdd, 0x00, 0x98, 0x0b, 0x19},
+	{0xd3, 0xce, 0x45, 0xce, 0x1d, 0x56, 0xb7, 0xfc},
+	{0xd9, 0xf0, 0xfd, 0xda, 0xc0, 0x23, 0xb7, 0x93},
+	{0x4c, 0x6f, 0xa1, 0xe4, 0x0c, 0xa8, 0xca, 0x57},
+	{0xe6, 0x2f, 0x28, 0xa7, 0x0c, 0x94, 0x0d, 0x08},
+	{0x8f, 0xe3, 0xf0, 0xb6, 0x29, 0xe3, 0x44, 0x03},
+	{0xff, 0x98, 0xdd, 0x04, 0x45, 0xb4, 0x6d, 0x1f},
+	{0x9e, 0x45, 0x4d, 0x18, 0x40, 0x53, 0xdb, 0xef},
+	{0xb7, 0x3b, 0xef, 0x29, 0xbe, 0xa8, 0x13, 0x71},
+	{0x02, 0x54, 0x55, 0x41, 0x8e, 0x04, 0xfc, 0xad},
+	{0x6a, 0x0a, 0xee, 0x7c, 0x10, 0xd9, 0x19, 0xfe},
+	{0x0a, 0x22, 0xd9, 0x41, 0xcc, 0x23, 0x87, 0x13},
+	{0x6e, 0xff, 0x1f, 0xff, 0x36, 0x17, 0x9c, 0xbe},
+	{0x79, 0xad, 0xb7, 0x40, 0xf4, 0x9f, 0x51, 0xa6},
+	{0x97, 0x81, 0x99, 0xa4, 0xde, 0x9e, 0x9f, 0xb6},
+	{0x12, 0x19, 0x7a, 0x28, 0xd0, 0xdc, 0xcc, 0x92},
+	{0x81, 0xda, 0x60, 0x1e, 0x0e, 0xdd, 0x65, 0x56},
+	{0x7d, 0x76, 0x20, 0xb2, 0x73, 0xc9, 0x9e, 0xee},
+}
+
+func TestSaltedCipher(t *testing.T) {
+	var key, salt [32]byte
+	for i := range key {
+		key[i] = byte(i)
+		salt[i] = byte(i + 32)
+	}
+	for i, v := range saltedVectors {
+		c, err := NewSaltedCipher(key[:], salt[:i])
+		if err != nil {
+			t.Fatal(err)
+		}
+		var buf [8]byte
+		c.Encrypt(buf[:], buf[:])
+		if v != buf {
+			t.Errorf("%d: expected %x, got %x", i, v, buf)
+		}
+	}
+}
+
+func BenchmarkExpandKeyWithSalt(b *testing.B) {
+	key := make([]byte, 32)
+	salt := make([]byte, 16)
+	c, _ := NewCipher(key)
+	for i := 0; i < b.N; i++ {
+		expandKeyWithSalt(key, salt, c)
+	}
+}
+
+func BenchmarkExpandKey(b *testing.B) {
+	key := make([]byte, 32)
+	c, _ := NewCipher(key)
+	for i := 0; i < b.N; i++ {
+		ExpandKey(key, c)
+	}
+}

Godeps/_workspace/src/code.google.com/p/go.text/transform/examples_test.go

@@ -0,0 +1,37 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package transform_test
+
+import (
+	"fmt"
+	"unicode"
+
+	"code.google.com/p/go.text/transform"
+	"code.google.com/p/go.text/unicode/norm"
+)
+
+func ExampleRemoveFunc() {
+	input := []byte(`tschüß; до свидания`)
+
+	b := make([]byte, len(input))
+
+	t := transform.RemoveFunc(unicode.IsSpace)
+	n, _, _ := t.Transform(b, input, true)
+	fmt.Println(string(b[:n]))
+
+	t = transform.RemoveFunc(func(r rune) bool {
+		return !unicode.Is(unicode.Latin, r)
+	})
+	n, _, _ = t.Transform(b, input, true)
+	fmt.Println(string(b[:n]))
+
+	n, _, _ = t.Transform(b, norm.NFD.Bytes(input), true)
+	fmt.Println(string(b[:n]))
+
+	// Output:
+	// tschüß;досвидания
+	// tschüß
+	// tschuß
+}

Godeps/_workspace/src/code.google.com/p/go.text/transform/transform.go

@@ -55,17 +55,10 @@ type Transformer interface {
 	// either error may be returned. Other than the error conditions listed
 	// here, implementations are free to report other errors that arise.
 	Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error)
-
-	// Reset resets the state and allows a Transformer to be reused.
-	Reset()
 }
 
-// NopResetter can be embedded by implementations of Transformer to add a nop
-// Reset method.
-type NopResetter struct{}
-
-// Reset implements the Reset method of the Transformer interface.
-func (NopResetter) Reset() {}
+// TODO: Do we require that a Transformer be reusable if it returns a nil error
+// or do we always require a reset after use?  Is Reset mandatory or optional?
 
 // Reader wraps another io.Reader by transforming the bytes read.
 type Reader struct {
@@ -91,9 +84,8 @@ type Reader struct {
 const defaultBufSize = 4096
 
 // NewReader returns a new Reader that wraps r by transforming the bytes read
-// via t. It calls Reset on t.
+// via t.
 func NewReader(r io.Reader, t Transformer) *Reader {
-	t.Reset()
 	return &Reader{
 		r:   r,
 		t:   t,
@@ -178,9 +170,8 @@ type Writer struct {
 }
 
 // NewWriter returns a new Writer that wraps w by transforming the bytes written
-// via t. It calls Reset on t.
+// via t.
 func NewWriter(w io.Writer, t Transformer) *Writer {
-	t.Reset()
 	return &Writer{
 		w:   w,
 		t:   t,
@@ -256,7 +247,7 @@ func (w *Writer) Close() error {
 	return nil
 }
 
-type nop struct{ NopResetter }
+type nop struct{}
 
 func (nop) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
 	n := copy(dst, src)
@@ -266,7 +257,7 @@ func (nop) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
 	return n, n, err
 }
 
-type discard struct{ NopResetter }
+type discard struct{}
 
 func (discard) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
 	return 0, len(src), nil
@@ -336,16 +327,6 @@ func Chain(t ...Transformer) Transformer {
 	return c
 }
 
-// Reset resets the state of Chain. It calls Reset on all the Transformers.
-func (c *chain) Reset() {
-	for i, l := range c.link {
-		if l.t != nil {
-			l.t.Reset()
-		}
-		c.link[i].p, c.link[i].n = 0, 0
-	}
-}
-
 // Transform applies the transformers of c in sequence.
 func (c *chain) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
 	// Set up src and dst in the chain.
@@ -444,8 +425,6 @@ func RemoveFunc(f func(r rune) bool) Transformer {
 
 type removeF func(r rune) bool
 
-func (removeF) Reset() {}
-
 // Transform implements the Transformer interface.
 func (t removeF) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
 	for r, sz := rune(0), 0; len(src) > 0; src = src[sz:] {
@@ -457,7 +436,7 @@ func (t removeF) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err err
 
 			if sz == 1 {
 				// Invalid rune.
-				if !atEOF && !utf8.FullRune(src) {
+				if !atEOF && !utf8.FullRune(src[nSrc:]) {
 					err = ErrShortSrc
 					break
 				}
@@ -506,14 +485,12 @@ func grow(b []byte, n int) []byte {
 const initialBufSize = 128
 
 // String returns a string with the result of converting s[:n] using t, where
-// n <= len(s). If err == nil, n will be len(s). It calls Reset on t.
+// n <= len(s). If err == nil, n will be len(s).
 func String(t Transformer, s string) (result string, n int, err error) {
 	if s == "" {
 		return "", 0, nil
 	}
 
-	t.Reset()
-
 	// Allocate only once. Note that both dst and src escape when passed to
 	// Transform.
 	buf := [2 * initialBufSize]byte{}
@@ -594,9 +571,8 @@ func String(t Transformer, s string) (result string, n int, err error) {
 }
 
 // Bytes returns a new byte slice with the result of converting b[:n] using t,
-// where n <= len(b). If err == nil, n will be len(b). It calls Reset on t.
+// where n <= len(b). If err == nil, n will be len(b).
 func Bytes(t Transformer, b []byte) (result []byte, n int, err error) {
-	t.Reset()
 	dst := make([]byte, len(b))
 	pDst, pSrc := 0, 0
 	for {

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/Makefile

@@ -0,0 +1,30 @@
+# Copyright 2011 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+maketables: maketables.go triegen.go
+	go build $^
+
+maketesttables: maketesttables.go triegen.go
+	go build $^
+
+normregtest: normregtest.go
+	go build $^
+
+tables:	maketables
+	./maketables > tables.go
+	gofmt -w tables.go
+
+trietesttables: maketesttables
+	./maketesttables > triedata_test.go
+	gofmt -w triedata_test.go
+
+# Downloads from www.unicode.org, so not part
+# of standard test scripts.
+test: testtables regtest
+
+testtables: maketables
+	./maketables -test > data_test.go && go test -tags=test
+
+regtest: normregtest
+	./normregtest

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/composition_test.go

@@ -0,0 +1,130 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package norm
+
+import "testing"
+
+// TestCase is used for most tests.
+type TestCase struct {
+	in  []rune
+	out []rune
+}
+
+func runTests(t *testing.T, name string, fm Form, tests []TestCase) {
+	rb := reorderBuffer{}
+	rb.init(fm, nil)
+	for i, test := range tests {
+		rb.setFlusher(nil, appendFlush)
+		for j, rune := range test.in {
+			b := []byte(string(rune))
+			src := inputBytes(b)
+			info := rb.f.info(src, 0)
+			if j == 0 {
+				rb.ss.first(info)
+			} else {
+				rb.ss.next(info)
+			}
+			if rb.insertFlush(src, 0, info) < 0 {
+				t.Errorf("%s:%d: insert failed for rune %d", name, i, j)
+			}
+		}
+		rb.doFlush()
+		was := string(rb.out)
+		want := string(test.out)
+		if len(was) != len(want) {
+			t.Errorf("%s:%d: length = %d; want %d", name, i, len(was), len(want))
+		}
+		if was != want {
+			k, pfx := pidx(was, want)
+			t.Errorf("%s:%d: \nwas  %s%+q; \nwant %s%+q", name, i, pfx, was[k:], pfx, want[k:])
+		}
+	}
+}
+
+func TestFlush(t *testing.T) {
+	const (
+		hello = "Hello "
+		world = "world!"
+	)
+	buf := make([]byte, maxByteBufferSize)
+	p := copy(buf, hello)
+	out := buf[p:]
+	rb := reorderBuffer{}
+	rb.initString(NFC, world)
+	if i := rb.flushCopy(out); i != 0 {
+		t.Errorf("wrote bytes on flush of empty buffer. (len(out) = %d)", i)
+	}
+
+	for i := range world {
+		// No need to set streamSafe values for this test.
+		rb.insertFlush(rb.src, i, rb.f.info(rb.src, i))
+		n := rb.flushCopy(out)
+		out = out[n:]
+		p += n
+	}
+
+	was := buf[:p]
+	want := hello + world
+	if string(was) != want {
+		t.Errorf(`output after flush was "%s"; want "%s"`, string(was), want)
+	}
+	if rb.nrune != 0 {
+		t.Errorf("non-null size of info buffer (rb.nrune == %d)", rb.nrune)
+	}
+	if rb.nbyte != 0 {
+		t.Errorf("non-null size of byte buffer (rb.nbyte == %d)", rb.nbyte)
+	}
+}
+
+var insertTests = []TestCase{
+	{[]rune{'a'}, []rune{'a'}},
+	{[]rune{0x300}, []rune{0x300}},
+	{[]rune{0x300, 0x316}, []rune{0x316, 0x300}}, // CCC(0x300)==230; CCC(0x316)==220
+	{[]rune{0x316, 0x300}, []rune{0x316, 0x300}},
+	{[]rune{0x41, 0x316, 0x300}, []rune{0x41, 0x316, 0x300}},
+	{[]rune{0x41, 0x300, 0x316}, []rune{0x41, 0x316, 0x300}},
+	{[]rune{0x300, 0x316, 0x41}, []rune{0x316, 0x300, 0x41}},
+	{[]rune{0x41, 0x300, 0x40, 0x316}, []rune{0x41, 0x300, 0x40, 0x316}},
+}
+
+func TestInsert(t *testing.T) {
+	runTests(t, "TestInsert", NFD, insertTests)
+}
+
+var decompositionNFDTest = []TestCase{
+	{[]rune{0xC0}, []rune{0x41, 0x300}},
+	{[]rune{0xAC00}, []rune{0x1100, 0x1161}},
+	{[]rune{0x01C4}, []rune{0x01C4}},
+	{[]rune{0x320E}, []rune{0x320E}},
+	{[]rune("음ẻ과"), []rune{0x110B, 0x1173, 0x11B7, 0x65, 0x309, 0x1100, 0x116A}},
+}
+
+var decompositionNFKDTest = []TestCase{
+	{[]rune{0xC0}, []rune{0x41, 0x300}},
+	{[]rune{0xAC00}, []rune{0x1100, 0x1161}},
+	{[]rune{0x01C4}, []rune{0x44, 0x5A, 0x030C}},
+	{[]rune{0x320E}, []rune{0x28, 0x1100, 0x1161, 0x29}},
+}
+
+func TestDecomposition(t *testing.T) {
+	runTests(t, "TestDecompositionNFD", NFD, decompositionNFDTest)
+	runTests(t, "TestDecompositionNFKD", NFKD, decompositionNFKDTest)
+}
+
+var compositionTest = []TestCase{
+	{[]rune{0x41, 0x300}, []rune{0xC0}},
+	{[]rune{0x41, 0x316}, []rune{0x41, 0x316}},
+	{[]rune{0x41, 0x300, 0x35D}, []rune{0xC0, 0x35D}},
+	{[]rune{0x41, 0x316, 0x300}, []rune{0xC0, 0x316}},
+	// blocking starter
+	{[]rune{0x41, 0x316, 0x40, 0x300}, []rune{0x41, 0x316, 0x40, 0x300}},
+	{[]rune{0x1100, 0x1161}, []rune{0xAC00}},
+	// parenthesized Hangul, alternate between ASCII and Hangul.
+	{[]rune{0x28, 0x1100, 0x1161, 0x29}, []rune{0x28, 0xAC00, 0x29}},
+}
+
+func TestComposition(t *testing.T) {
+	runTests(t, "TestComposition", NFC, compositionTest)
+}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/example_iter_test.go

@@ -0,0 +1,82 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package norm_test
+
+import (
+	"bytes"
+	"fmt"
+	"unicode/utf8"
+
+	"code.google.com/p/go.text/unicode/norm"
+)
+
+// EqualSimple uses a norm.Iter to compare two non-normalized
+// strings for equivalence.
+func EqualSimple(a, b string) bool {
+	var ia, ib norm.Iter
+	ia.InitString(norm.NFKD, a)
+	ib.InitString(norm.NFKD, b)
+	for !ia.Done() && !ib.Done() {
+		if !bytes.Equal(ia.Next(), ib.Next()) {
+			return false
+		}
+	}
+	return ia.Done() && ib.Done()
+}
+
+// FindPrefix finds the longest common prefix of ASCII characters
+// of a and b.
+func FindPrefix(a, b string) int {
+	i := 0
+	for ; i < len(a) && i < len(b) && a[i] < utf8.RuneSelf && a[i] == b[i]; i++ {
+	}
+	return i
+}
+
+// EqualOpt is like EqualSimple, but optimizes the special
+// case for ASCII characters.
+func EqualOpt(a, b string) bool {
+	n := FindPrefix(a, b)
+	a, b = a[n:], b[n:]
+	var ia, ib norm.Iter
+	ia.InitString(norm.NFKD, a)
+	ib.InitString(norm.NFKD, b)
+	for !ia.Done() && !ib.Done() {
+		if !bytes.Equal(ia.Next(), ib.Next()) {
+			return false
+		}
+		if n := int64(FindPrefix(a[ia.Pos():], b[ib.Pos():])); n != 0 {
+			ia.Seek(n, 1)
+			ib.Seek(n, 1)
+		}
+	}
+	return ia.Done() && ib.Done()
+}
+
+var compareTests = []struct{ a, b string }{
+	{"aaa", "aaa"},
+	{"aaa", "aab"},
+	{"a\u0300a", "\u00E0a"},
+	{"a\u0300\u0320b", "a\u0320\u0300b"},
+	{"\u1E0A\u0323", "\x44\u0323\u0307"},
+	// A character that decomposes into multiple segments
+	// spans several iterations.
+	{"\u3304", "\u30A4\u30CB\u30F3\u30AF\u3099"},
+}
+
+func ExampleIter() {
+	for i, t := range compareTests {
+		r0 := EqualSimple(t.a, t.b)
+		r1 := EqualOpt(t.a, t.b)
+		fmt.Printf("%d: %v %v\n", i, r0, r1)
+	}
+	// Output:
+	// 0: true true
+	// 1: false false
+	// 2: true true
+	// 3: true true
+	// 4: true true
+	// 5: true true
+}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/forminfo.go

@@ -201,17 +201,17 @@ func lookupInfoNFKC(b input, i int) Properties {
 // Properties returns properties for the first rune in s.
 func (f Form) Properties(s []byte) Properties {
 	if f == NFC || f == NFD {
-		return compInfo(nfcData.lookup(s))
+		return compInfo(nfcTrie.lookup(s))
 	}
-	return compInfo(nfkcData.lookup(s))
+	return compInfo(nfkcTrie.lookup(s))
 }
 
 // PropertiesString returns properties for the first rune in s.
 func (f Form) PropertiesString(s string) Properties {
 	if f == NFC || f == NFD {
-		return compInfo(nfcData.lookupString(s))
+		return compInfo(nfcTrie.lookupString(s))
 	}
-	return compInfo(nfkcData.lookupString(s))
+	return compInfo(nfkcTrie.lookupString(s))
 }
 
 // compInfo converts the information contained in v and sz

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/forminfo_test.go

@@ -0,0 +1,54 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build test
+
+package norm
+
+import "testing"
+
+func TestProperties(t *testing.T) {
+	var d runeData
+	CK := [2]string{"C", "K"}
+	for k, r := 1, rune(0); r < 0x2ffff; r++ {
+		if k < len(testData) && r == testData[k].r {
+			d = testData[k]
+			k++
+		}
+		s := string(r)
+		for j, p := range []Properties{NFC.PropertiesString(s), NFKC.PropertiesString(s)} {
+			f := d.f[j]
+			if p.CCC() != d.ccc {
+				t.Errorf("%U: ccc(%s): was %d; want %d %X", r, CK[j], p.CCC(), d.ccc, p.index)
+			}
+			if p.isYesC() != (f.qc == Yes) {
+				t.Errorf("%U: YesC(%s): was %v; want %v", r, CK[j], p.isYesC(), f.qc == Yes)
+			}
+			if p.combinesBackward() != (f.qc == Maybe) {
+				t.Errorf("%U: combines backwards(%s): was %v; want %v", r, CK[j], p.combinesBackward(), f.qc == Maybe)
+			}
+			if p.nLeadingNonStarters() != d.nLead {
+				t.Errorf("%U: nLead(%s): was %d; want %d %#v %#v", r, CK[j], p.nLeadingNonStarters(), d.nLead, p, d)
+			}
+			if p.nTrailingNonStarters() != d.nTrail {
+				t.Errorf("%U: nTrail(%s): was %d; want %d %#v %#v", r, CK[j], p.nTrailingNonStarters(), d.nTrail, p, d)
+			}
+			if p.combinesForward() != f.combinesForward {
+				t.Errorf("%U: combines forward(%s): was %v; want %v %#v", r, CK[j], p.combinesForward(), f.combinesForward, p)
+			}
+			// Skip Hangul as it is algorithmically computed.
+			if r >= hangulBase && r < hangulEnd {
+				continue
+			}
+			if p.hasDecomposition() {
+				if has := f.decomposition != ""; !has {
+					t.Errorf("%U: hasDecomposition(%s): was %v; want %v", r, CK[j], p.hasDecomposition(), has)
+				}
+				if string(p.Decomposition()) != f.decomposition {
+					t.Errorf("%U: decomp(%s): was %+q; want %+q", r, CK[j], p.Decomposition(), f.decomposition)
+				}
+			}
+		}
+	}
+}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/input.go

@@ -77,16 +77,16 @@ func (in *input) copySlice(buf []byte, b, e int) int {
 
 func (in *input) charinfoNFC(p int) (uint16, int) {
 	if in.bytes == nil {
-		return nfcData.lookupString(in.str[p:])
+		return nfcTrie.lookupString(in.str[p:])
 	}
-	return nfcData.lookup(in.bytes[p:])
+	return nfcTrie.lookup(in.bytes[p:])
 }
 
 func (in *input) charinfoNFKC(p int) (uint16, int) {
 	if in.bytes == nil {
-		return nfkcData.lookupString(in.str[p:])
+		return nfkcTrie.lookupString(in.str[p:])
 	}
-	return nfkcData.lookup(in.bytes[p:])
+	return nfkcTrie.lookup(in.bytes[p:])
 }
 
 func (in *input) hangul(p int) (r rune) {

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/iter.go

@@ -9,8 +9,6 @@ import (
 	"unicode/utf8"
 )
 
-// MaxSegmentSize is the maximum size of a byte buffer needed to consider any
-// sequence of starter and non-starter runes for the purpose of normalization.
 const MaxSegmentSize = maxByteBufferSize
 
 // An Iter iterates over a string or byte slice, while normalizing it

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/iter_test.go

@@ -0,0 +1,98 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package norm
+
+import (
+	"strings"
+	"testing"
+)
+
+func doIterNorm(f Form, s string) []byte {
+	acc := []byte{}
+	i := Iter{}
+	i.InitString(f, s)
+	for !i.Done() {
+		acc = append(acc, i.Next()...)
+	}
+	return acc
+}
+
+func TestIterNext(t *testing.T) {
+	runNormTests(t, "IterNext", func(f Form, out []byte, s string) []byte {
+		return doIterNorm(f, string(append(out, s...)))
+	})
+}
+
+type SegmentTest struct {
+	in  string
+	out []string
+}
+
+var segmentTests = []SegmentTest{
+	{"\u1E0A\u0323a", []string{"\x44\u0323\u0307", "a", ""}},
+	{rep('a', segSize), append(strings.Split(rep('a', segSize), ""), "")},
+	{rep('a', segSize+2), append(strings.Split(rep('a', segSize+2), ""), "")},
+	{rep('a', segSize) + "\u0300aa",
+		append(strings.Split(rep('a', segSize-1), ""), "a\u0300", "a", "a", "")},
+
+	// U+0f73 is NOT treated as a starter as it is a modifier
+	{"a" + grave(29) + "\u0f73", []string{"a" + grave(29), cgj + "\u0f73"}},
+	{"a\u0f73", []string{"a\u0f73"}},
+
+	// U+ff9e is treated as a non-starter.
+	// TODO: should we? Note that this will only affect iteration, as whether
+	// or not we do so does not affect the normalization output and will either
+	// way result in consistent iteration output.
+	{"a" + grave(30) + "\uff9e", []string{"a" + grave(30), cgj + "\uff9e"}},
+	{"a\uff9e", []string{"a\uff9e"}},
+}
+
+var segmentTestsK = []SegmentTest{
+	{"\u3332", []string{"\u30D5", "\u30A1", "\u30E9", "\u30C3", "\u30C8\u3099", ""}},
+	// last segment of multi-segment decomposition needs normalization
+	{"\u3332\u093C", []string{"\u30D5", "\u30A1", "\u30E9", "\u30C3", "\u30C8\u093C\u3099", ""}},
+	{"\u320E", []string{"\x28", "\uAC00", "\x29"}},
+
+	// last segment should be copied to start of buffer.
+	{"\ufdfa", []string{"\u0635", "\u0644", "\u0649", " ", "\u0627", "\u0644", "\u0644", "\u0647", " ", "\u0639", "\u0644", "\u064a", "\u0647", " ", "\u0648", "\u0633", "\u0644", "\u0645", ""}},
+	{"\ufdfa" + grave(30), []string{"\u0635", "\u0644", "\u0649", " ", "\u0627", "\u0644", "\u0644", "\u0647", " ", "\u0639", "\u0644", "\u064a", "\u0647", " ", "\u0648", "\u0633", "\u0644", "\u0645" + grave(30), ""}},
+	{"\uFDFA" + grave(64), []string{"\u0635", "\u0644", "\u0649", " ", "\u0627", "\u0644", "\u0644", "\u0647", " ", "\u0639", "\u0644", "\u064a", "\u0647", " ", "\u0648", "\u0633", "\u0644", "\u0645" + grave(30), cgj + grave(30), cgj + grave(4), ""}},
+
+	// Hangul and Jamo are grouped togeter.
+	{"\uAC00", []string{"\u1100\u1161", ""}},
+	{"\uAC01", []string{"\u1100\u1161\u11A8", ""}},
+	{"\u1100\u1161", []string{"\u1100\u1161", ""}},
+}
+
+// Note that, by design, segmentation is equal for composing and decomposing forms.
+func TestIterSegmentation(t *testing.T) {
+	segmentTest(t, "SegmentTestD", NFD, segmentTests)
+	segmentTest(t, "SegmentTestC", NFC, segmentTests)
+	segmentTest(t, "SegmentTestKD", NFKD, segmentTestsK)
+	segmentTest(t, "SegmentTestKC", NFKC, segmentTestsK)
+}
+
+func segmentTest(t *testing.T, name string, f Form, tests []SegmentTest) {
+	iter := Iter{}
+	for i, tt := range tests {
+		iter.InitString(f, tt.in)
+		for j, seg := range tt.out {
+			if seg == "" {
+				if !iter.Done() {
+					res := string(iter.Next())
+					t.Errorf(`%s:%d:%d: expected Done()==true, found segment %+q`, name, i, j, res)
+				}
+				continue
+			}
+			if iter.Done() {
+				t.Errorf("%s:%d:%d: Done()==true, want false", name, i, j)
+			}
+			seg = f.String(seg)
+			if res := string(iter.Next()); res != seg {
+				t.Errorf(`%s:%d:%d" segment was %+q (%d); want %+q (%d)`, name, i, j, pc(res), len(res), pc(seg), len(seg))
+			}
+		}
+	}
+}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/maketables.go

@@ -16,17 +16,19 @@ import (
 	"fmt"
 	"io"
 	"log"
+	"net/http"
+	"os"
+	"regexp"
 	"sort"
 	"strconv"
 	"strings"
+	"unicode"
 
-	"golang.org/x/text/internal/gen"
-	"golang.org/x/text/internal/triegen"
-	"golang.org/x/text/internal/ucd"
+	"code.google.com/p/go.text/internal/ucd"
 )
 
 func main() {
-	gen.Init()
+	flag.Parse()
 	loadUnicodeData()
 	compactCCC()
 	loadCompositionExclusions()
@@ -43,18 +45,24 @@ func main() {
 	}
 }
 
-var (
-	tablelist = flag.String("tables",
-		"all",
-		"comma-separated list of which tables to generate; "+
-			"can be 'decomp', 'recomp', 'info' and 'all'")
-	test = flag.Bool("test",
-		false,
-		"test existing tables against DerivedNormalizationProps and generate test data for regression testing")
-	verbose = flag.Bool("verbose",
-		false,
-		"write data to stdout as it is parsed")
-)
+var url = flag.String("url",
+	"http://www.unicode.org/Public/"+unicode.Version+"/ucd/",
+	"URL of Unicode database directory")
+var tablelist = flag.String("tables",
+	"all",
+	"comma-separated list of which tables to generate; "+
+		"can be 'decomp', 'recomp', 'info' and 'all'")
+var test = flag.Bool("test",
+	false,
+	"test existing tables against DerivedNormalizationProps and generate test data for regression testing")
+var verbose = flag.Bool("verbose",
+	false,
+	"write data to stdout as it is parsed")
+var localFiles = flag.Bool("local",
+	false,
+	"data files have been copied to the current directory; for debugging only")
+
+var logger = log.New(os.Stderr, "", log.Lshortfile)
 
 const MaxChar = 0x10FFFF // anything above this shouldn't exist
 
@@ -180,6 +188,27 @@ func (f FormInfo) String() string {
 
 type Decomposition []rune
 
+func openReader(file string) (input io.ReadCloser) {
+	if *localFiles {
+		f, err := os.Open(file)
+		if err != nil {
+			logger.Fatal(err)
+		}
+		input = f
+	} else {
+		path := *url + file
+		resp, err := http.Get(path)
+		if err != nil {
+			logger.Fatal(err)
+		}
+		if resp.StatusCode != 200 {
+			logger.Fatal("bad GET status for "+file, resp.Status)
+		}
+		input = resp.Body
+	}
+	return
+}
+
 func parseDecomposition(s string, skipfirst bool) (a []rune, err error) {
 	decomp := strings.Split(s, " ")
 	if len(decomp) > 0 && skipfirst {
@@ -196,7 +225,7 @@ func parseDecomposition(s string, skipfirst bool) (a []rune, err error) {
 }
 
 func loadUnicodeData() {
-	f := gen.OpenUCDFile("UnicodeData.txt")
+	f := openReader("UnicodeData.txt")
 	defer f.Close()
 	p := ucd.New(f)
 	for p.Next() {
@@ -212,7 +241,7 @@ func loadUnicodeData() {
 			if len(decmap) > 0 {
 				exp, err = parseDecomposition(decmap, true)
 				if err != nil {
-					log.Fatalf(`%U: bad decomp |%v|: "%s"`, r, decmap, err)
+					logger.Fatalf(`%U: bad decomp |%v|: "%s"`, r, decmap, err)
 				}
 				isCompat = true
 			}
@@ -231,7 +260,7 @@ func loadUnicodeData() {
 		}
 	}
 	if err := p.Err(); err != nil {
-		log.Fatal(err)
+		logger.Fatal(err)
 	}
 }
 
@@ -266,18 +295,18 @@ func compactCCC() {
 // 0958    # ...
 // See http://unicode.org/reports/tr44/ for full explanation
 func loadCompositionExclusions() {
-	f := gen.OpenUCDFile("CompositionExclusions.txt")
+	f := openReader("CompositionExclusions.txt")
 	defer f.Close()
 	p := ucd.New(f)
 	for p.Next() {
 		c := &chars[p.Rune(0)]
 		if c.excludeInComp {
-			log.Fatalf("%U: Duplicate entry in exclusions.", c.codePoint)
+			logger.Fatalf("%U: Duplicate entry in exclusions.", c.codePoint)
 		}
 		c.excludeInComp = true
 	}
 	if e := p.Err(); e != nil {
-		log.Fatal(e)
+		logger.Fatal(e)
 	}
 }
 
@@ -471,22 +500,29 @@ func computeNonStarterCounts() {
 		if exp := c.forms[FCompatibility].expandedDecomp; len(exp) > 0 {
 			runes = exp
 		}
-		// We consider runes that combine backwards to be non-starters for the
-		// purpose of Stream-Safe Text Processing.
 		for _, r := range runes {
-			if cr := &chars[r]; cr.ccc == 0 && !cr.forms[FCompatibility].combinesBackward {
+			if chars[r].ccc == 0 {
 				break
 			}
 			c.nLeadingNonStarters++
 		}
 		for i := len(runes) - 1; i >= 0; i-- {
-			if cr := &chars[runes[i]]; cr.ccc == 0 && !cr.forms[FCompatibility].combinesBackward {
+			if chars[runes[i]].ccc == 0 {
 				break
 			}
 			c.nTrailingNonStarters++
 		}
-		if c.nTrailingNonStarters > 3 {
-			log.Fatalf("%U: Decomposition with more than 3 (%d) trailing modifiers (%U)", i, c.nTrailingNonStarters, runes)
+
+		// We consider runes that combine backwards to be non-starters for the
+		// purpose of Stream-Safe Text Processing.
+		for _, f := range c.forms {
+			if c.ccc == 0 && f.combinesBackward {
+				if len(c.forms[FCompatibility].expandedDecomp) > 0 {
+					log.Fatalf("%U: CCC==0 modifier with an expansion is not supported.", i)
+				}
+				c.nTrailingNonStarters = 1
+				c.nLeadingNonStarters = 1
+			}
 		}
 
 		if isHangul(rune(i)) {
@@ -505,19 +541,19 @@ func computeNonStarterCounts() {
 	}
 }
 
-func printBytes(w io.Writer, b []byte, name string) {
-	fmt.Fprintf(w, "// %s: %d bytes\n", name, len(b))
-	fmt.Fprintf(w, "var %s = [...]byte {", name)
+func printBytes(b []byte, name string) {
+	fmt.Printf("// %s: %d bytes\n", name, len(b))
+	fmt.Printf("var %s = [...]byte {", name)
 	for i, c := range b {
 		switch {
 		case i%64 == 0:
-			fmt.Fprintf(w, "\n// Bytes %x - %x\n", i, i+63)
+			fmt.Printf("\n// Bytes %x - %x\n", i, i+63)
 		case i%8 == 0:
-			fmt.Fprintf(w, "\n")
+			fmt.Printf("\n")
 		}
-		fmt.Fprintf(w, "0x%.2X, ", c)
+		fmt.Printf("0x%.2X, ", c)
 	}
-	fmt.Fprint(w, "\n}\n\n")
+	fmt.Print("\n}\n\n")
 }
 
 // See forminfo.go for format.
@@ -573,13 +609,13 @@ func (m *decompSet) insert(key int, s string) {
 	m[key][s] = true
 }
 
-func printCharInfoTables(w io.Writer) int {
+func printCharInfoTables() int {
 	mkstr := func(r rune, f *FormInfo) (int, string) {
 		d := f.expandedDecomp
 		s := string([]rune(d))
 		if max := 1 << 6; len(s) >= max {
 			const msg = "%U: too many bytes in decomposition: %d >= %d"
-			log.Fatalf(msg, r, len(s), max)
+			logger.Fatalf(msg, r, len(s), max)
 		}
 		head := uint8(len(s))
 		if f.quickCheck[MComposed] != QCYes {
@@ -594,11 +630,11 @@ func printCharInfoTables(w io.Writer) int {
 		tccc := ccc(d[len(d)-1])
 		cc := ccc(r)
 		if cc != 0 && lccc == 0 && tccc == 0 {
-			log.Fatalf("%U: trailing and leading ccc are 0 for non-zero ccc %d", r, cc)
+			logger.Fatalf("%U: trailing and leading ccc are 0 for non-zero ccc %d", r, cc)
 		}
 		if tccc < lccc && lccc != 0 {
 			const msg = "%U: lccc (%d) must be <= tcc (%d)"
-			log.Fatalf(msg, r, lccc, tccc)
+			logger.Fatalf(msg, r, lccc, tccc)
 		}
 		index := normalDecomp
 		nTrail := chars[r].nTrailingNonStarters
@@ -615,13 +651,13 @@ func printCharInfoTables(w io.Writer) int {
 			if lccc > 0 {
 				s += string([]byte{lccc})
 				if index == firstCCC {
-					log.Fatalf("%U: multi-segment decomposition not supported for decompositions with leading CCC != 0", r)
+					logger.Fatalf("%U: multi-segment decomposition not supported for decompositions with leading CCC != 0", r)
 				}
 				index = firstLeadingCCC
 			}
 			if cc != lccc {
 				if cc != 0 {
-					log.Fatalf("%U: for lccc != ccc, expected ccc to be 0; was %d", r, cc)
+					logger.Fatalf("%U: for lccc != ccc, expected ccc to be 0; was %d", r, cc)
 				}
 				index = firstCCCZeroExcept
 			}
@@ -643,7 +679,7 @@ func printCharInfoTables(w io.Writer) int {
 				continue
 			}
 			if f.combinesBackward {
-				log.Fatalf("%U: combinesBackward and decompose", c.codePoint)
+				logger.Fatalf("%U: combinesBackward and decompose", c.codePoint)
 			}
 			index, s := mkstr(c.codePoint, &f)
 			decompSet.insert(index, s)
@@ -654,7 +690,7 @@ func printCharInfoTables(w io.Writer) int {
 	size := 0
 	positionMap := make(map[string]uint16)
 	decompositions.WriteString("\000")
-	fmt.Fprintln(w, "const (")
+	fmt.Println("const (")
 	for i, m := range decompSet {
 		sa := []string{}
 		for s := range m {
@@ -667,44 +703,39 @@ func printCharInfoTables(w io.Writer) int {
 			positionMap[s] = uint16(p)
 		}
 		if cname[i] != "" {
-			fmt.Fprintf(w, "%s = 0x%X\n", cname[i], decompositions.Len())
+			fmt.Printf("%s = 0x%X\n", cname[i], decompositions.Len())
 		}
 	}
-	fmt.Fprintln(w, "maxDecomp = 0x8000")
-	fmt.Fprintln(w, ")")
+	fmt.Println("maxDecomp = 0x8000")
+	fmt.Println(")")
 	b := decompositions.Bytes()
-	printBytes(w, b, "decomps")
+	printBytes(b, "decomps")
 	size += len(b)
 
 	varnames := []string{"nfc", "nfkc"}
 	for i := 0; i < FNumberOfFormTypes; i++ {
-		trie := triegen.NewTrie(varnames[i])
-
+		trie := newNode()
 		for r, c := range chars {
 			f := c.forms[i]
 			d := f.expandedDecomp
 			if len(d) != 0 {
 				_, key := mkstr(c.codePoint, &f)
-				trie.Insert(rune(r), uint64(positionMap[key]))
+				trie.insert(rune(r), positionMap[key])
 				if c.ccc != ccc(d[0]) {
 					// We assume the lead ccc of a decomposition !=0 in this case.
 					if ccc(d[0]) == 0 {
-						log.Fatalf("Expected leading CCC to be non-zero; ccc is %d", c.ccc)
+						logger.Fatalf("Expected leading CCC to be non-zero; ccc is %d", c.ccc)
 					}
 				}
 			} else if c.nLeadingNonStarters > 0 && len(f.expandedDecomp) == 0 && c.ccc == 0 && !f.combinesBackward {
 				// Handle cases where it can't be detected that the nLead should be equal
 				// to nTrail.
-				trie.Insert(c.codePoint, uint64(positionMap[nLeadStr]))
+				trie.insert(c.codePoint, positionMap[nLeadStr])
 			} else if v := makeEntry(&f, &c)<<8 | uint16(c.ccc); v != 0 {
-				trie.Insert(c.codePoint, uint64(0x8000|v))
+				trie.insert(c.codePoint, 0x8000|v)
 			}
 		}
-		sz, err := trie.Gen(w, triegen.Compact(&normCompacter{name: varnames[i]}))
-		if err != nil {
-			log.Fatal(err)
-		}
-		size += sz
+		size += trie.printTables(varnames[i])
 	}
 	return size
 }
@@ -718,9 +749,30 @@ func contains(sa []string, s string) bool {
 	return false
 }
 
-func makeTables() {
-	w := &bytes.Buffer{}
+// Extract the version number from the URL.
+func version() string {
+	// From http://www.unicode.org/standard/versions/#Version_Numbering:
+	// for the later Unicode versions, data files are located in
+	// versioned directories.
+	fields := strings.Split(*url, "/")
+	for _, f := range fields {
+		if match, _ := regexp.MatchString(`[0-9]\.[0-9]\.[0-9]`, f); match {
+			return f
+		}
+	}
+	logger.Fatal("unknown version")
+	return "Unknown"
+}
 
+const fileHeader = `// Generated by running
+//	maketables --tables=%s --url=%s
+// DO NOT EDIT
+
+package norm
+
+`
+
+func makeTables() {
 	size := 0
 	if *tablelist == "" {
 		return
@@ -729,6 +781,7 @@ func makeTables() {
 	if *tablelist == "all" {
 		list = []string{"recomp", "info"}
 	}
+	fmt.Printf(fileHeader, *tablelist, *url)
 
 	// Compute maximum decomposition size.
 	max := 0
@@ -738,30 +791,30 @@ func makeTables() {
 		}
 	}
 
-	fmt.Fprintln(w, "const (")
-	fmt.Fprintln(w, "\t// Version is the Unicode edition from which the tables are derived.")
-	fmt.Fprintf(w, "\tVersion = %q\n", gen.UnicodeVersion())
-	fmt.Fprintln(w)
-	fmt.Fprintln(w, "\t// MaxTransformChunkSize indicates the maximum number of bytes that Transform")
-	fmt.Fprintln(w, "\t// may need to write atomically for any Form. Making a destination buffer at")
-	fmt.Fprintln(w, "\t// least this size ensures that Transform can always make progress and that")
-	fmt.Fprintln(w, "\t// the user does not need to grow the buffer on an ErrShortDst.")
-	fmt.Fprintf(w, "\tMaxTransformChunkSize = %d+maxNonStarters*4\n", len(string(0x034F))+max)
-	fmt.Fprintln(w, ")\n")
+	fmt.Println("const (")
+	fmt.Println("\t// Version is the Unicode edition from which the tables are derived.")
+	fmt.Printf("\tVersion = %q\n", version())
+	fmt.Println()
+	fmt.Println("\t// MaxTransformChunkSize indicates the maximum number of bytes that Transform")
+	fmt.Println("\t// may need to write atomically for any Form. Making a destination buffer at")
+	fmt.Println("\t// least this size ensures that Transform can always make progress and that")
+	fmt.Println("\t// the user does not need to grow the buffer on an ErrShortDst.")
+	fmt.Printf("\tMaxTransformChunkSize = %d+maxNonStarters*4\n", len(string(0x034F))+max)
+	fmt.Println(")\n")
 
 	// Print the CCC remap table.
 	size += len(cccMap)
-	fmt.Fprintf(w, "var ccc = [%d]uint8{", len(cccMap))
+	fmt.Printf("var ccc = [%d]uint8{", len(cccMap))
 	for i := 0; i < len(cccMap); i++ {
 		if i%8 == 0 {
-			fmt.Fprintln(w)
+			fmt.Println()
 		}
-		fmt.Fprintf(w, "%3d, ", cccMap[uint8(i)])
+		fmt.Printf("%3d, ", cccMap[uint8(i)])
 	}
-	fmt.Fprintln(w, "\n}\n")
+	fmt.Println("\n}\n")
 
 	if contains(list, "info") {
-		size += printCharInfoTables(w)
+		size += printCharInfoTables()
 	}
 
 	if contains(list, "recomp") {
@@ -783,21 +836,20 @@ func makeTables() {
 		}
 		sz := nrentries * 8
 		size += sz
-		fmt.Fprintf(w, "// recompMap: %d bytes (entries only)\n", sz)
-		fmt.Fprintln(w, "var recompMap = map[uint32]rune{")
+		fmt.Printf("// recompMap: %d bytes (entries only)\n", sz)
+		fmt.Println("var recompMap = map[uint32]rune{")
 		for i, c := range chars {
 			f := c.forms[FCanonical]
 			d := f.decomp
 			if !f.isOneWay && len(d) > 0 {
 				key := uint32(uint16(d[0]))<<16 + uint32(uint16(d[1]))
-				fmt.Fprintf(w, "0x%.8X: 0x%.4X,\n", key, i)
+				fmt.Printf("0x%.8X: 0x%.4X,\n", key, i)
 			}
 		}
-		fmt.Fprintf(w, "}\n\n")
+		fmt.Printf("}\n\n")
 	}
 
-	fmt.Fprintf(w, "// Total size of tables: %dKB (%d bytes)\n", (size+512)/1024, size)
-	gen.WriteGoFile("tables.go", "norm", w.Bytes())
+	fmt.Printf("// Total size of tables: %dKB (%d bytes)\n", (size+512)/1024, size)
 }
 
 func printChars() {
@@ -832,16 +884,10 @@ func verifyComputed() {
 				continue
 			}
 			if a, b := c.nLeadingNonStarters > 0, (c.ccc > 0 || f.combinesBackward); a != b {
-				// We accept these runes to be treated differently (it only affects
-				// segment breaking in iteration, most likely on improper use), but
+				// We accept these two runes to be treated differently (it only affects
+				// segment breaking in iteration, most likely on inproper use), but
 				// reconsider if more characters are added.
-				// U+FF9E HALFWIDTH KATAKANA VOICED SOUND MARK;Lm;0;L;<narrow> 3099;;;;N;;;;;
-				// U+FF9F HALFWIDTH KATAKANA SEMI-VOICED SOUND MARK;Lm;0;L;<narrow> 309A;;;;N;;;;;
-				// U+3133 HANGUL LETTER KIYEOK-SIOS;Lo;0;L;<compat> 11AA;;;;N;HANGUL LETTER GIYEOG SIOS;;;;
-				// U+318E HANGUL LETTER ARAEAE;Lo;0;L;<compat> 11A1;;;;N;HANGUL LETTER ALAE AE;;;;
-				// U+FFA3 HALFWIDTH HANGUL LETTER KIYEOK-SIOS;Lo;0;L;<narrow> 3133;;;;N;HALFWIDTH HANGUL LETTER GIYEOG SIOS;;;;
-				// U+FFDC HALFWIDTH HANGUL LETTER I;Lo;0;L;<narrow> 3163;;;;N;;;;;
-				if i != 0xFF9E && i != 0xFF9F && !(0x3133 <= i && i <= 0x318E) && !(0xFFA3 <= i && i <= 0xFFDC) {
+				if i != 0xFF9E && i != 0xFF9F {
 					log.Fatalf("%U: nLead was %v; want %v", i, a, b)
 				}
 			}
@@ -849,7 +895,7 @@ func verifyComputed() {
 		nfc := c.forms[FCanonical]
 		nfkc := c.forms[FCompatibility]
 		if nfc.combinesBackward != nfkc.combinesBackward {
-			log.Fatalf("%U: Cannot combine combinesBackward\n", c.codePoint)
+			logger.Fatalf("%U: Cannot combine combinesBackward\n", c.codePoint)
 		}
 	}
 }
@@ -861,7 +907,7 @@ func verifyComputed() {
 // 0374          ; NFD_QC; N # ...
 // See http://unicode.org/reports/tr44/ for full explanation
 func testDerived() {
-	f := gen.OpenUCDFile("DerivedNormalizationProps.txt")
+	f := openReader("DerivedNormalizationProps.txt")
 	defer f.Close()
 	p := ucd.New(f)
 	for p.Next() {
@@ -894,12 +940,12 @@ func testDerived() {
 			log.Fatalf(`Unexpected quick check value "%s"`, p.String(2))
 		}
 		if got := c.forms[ftype].quickCheck[mode]; got != qr {
-			log.Printf("%U: FAILED %s (was %v need %v)\n", r, qt, got, qr)
+			logger.Printf("%U: FAILED %s (was %v need %v)\n", r, qt, got, qr)
 		}
 		c.forms[ftype].verified[mode] = true
 	}
 	if err := p.Err(); err != nil {
-		log.Fatal(err)
+		logger.Fatal(err)
 	}
 	// Any unspecified value must be QCYes. Verify this.
 	for i, c := range chars {
@@ -907,14 +953,20 @@ func testDerived() {
 			for k, qr := range fd.quickCheck {
 				if !fd.verified[k] && qr != QCYes {
 					m := "%U: FAIL F:%d M:%d (was %v need Yes) %s\n"
-					log.Printf(m, i, j, k, qr, c.name)
+					logger.Printf(m, i, j, k, qr, c.name)
 				}
 			}
 		}
 	}
 }
 
-var testHeader = `const (
+var testHeader = `// Generated by running
+//   maketables --test --url=%s
+// +build test
+
+package norm
+
+const (
 	Yes = iota
 	No
 	Maybe
@@ -952,10 +1004,8 @@ func printTestdata() {
 		nTrail uint8
 		f      string
 	}
-
 	last := lastInfo{}
-	w := &bytes.Buffer{}
-	fmt.Fprintf(w, testHeader)
+	fmt.Printf(testHeader, *url)
 	for r, c := range chars {
 		f := c.forms[FCanonical]
 		qc, cf, d := f.quickCheck[MComposed], f.combinesForward, string(f.expandedDecomp)
@@ -969,10 +1019,9 @@ func printTestdata() {
 		}
 		current := lastInfo{c.ccc, c.nLeadingNonStarters, c.nTrailingNonStarters, s}
 		if last != current {
-			fmt.Fprintf(w, "\t{0x%x, %d, %d, %d, %s},\n", r, c.origCCC, c.nLeadingNonStarters, c.nTrailingNonStarters, s)
+			fmt.Printf("\t{0x%x, %d, %d, %d, %s},\n", r, c.origCCC, c.nLeadingNonStarters, c.nTrailingNonStarters, s)
 			last = current
 		}
 	}
-	fmt.Fprintln(w, "}")
-	gen.WriteGoFile("data_test.go", "norm", w.Bytes())
+	fmt.Println("}")
 }

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/maketesttables.go

@@ -0,0 +1,45 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build ignore
+
+// Generate test data for trie code.
+
+package main
+
+import (
+	"fmt"
+)
+
+func main() {
+	printTestTables()
+}
+
+// We take the smallest, largest and an arbitrary value for each
+// of the UTF-8 sequence lengths.
+var testRunes = []rune{
+	0x01, 0x0C, 0x7F, // 1-byte sequences
+	0x80, 0x100, 0x7FF, // 2-byte sequences
+	0x800, 0x999, 0xFFFF, // 3-byte sequences
+	0x10000, 0x10101, 0x10FFFF, // 4-byte sequences
+	0x200, 0x201, 0x202, 0x210, 0x215, // five entries in one sparse block
+}
+
+const fileHeader = `// Generated by running
+//	maketesttables
+// DO NOT EDIT
+
+package norm
+
+`
+
+func printTestTables() {
+	fmt.Print(fileHeader)
+	fmt.Printf("var testRunes = %#v\n\n", testRunes)
+	t := newNode()
+	for i, r := range testRunes {
+		t.insert(r, uint16(i))
+	}
+	t.printTables("testdata")
+}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/norm_test.go

@@ -0,0 +1,14 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package norm_test
+
+import (
+	"testing"
+)
+
+func TestPlaceHolder(t *testing.T) {
+	// Does nothing, just allows the Makefile to be canonical
+	// while waiting for the package itself to be written.
+}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/normalize.go

@@ -2,9 +2,6 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:generate go run maketables.go triegen.go
-//go:generate go run maketables.go triegen.go -test
-
 // Package norm contains types and functions for normalizing Unicode strings.
 package norm
 

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/normregtest.go

@@ -0,0 +1,318 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build ignore
+
+package main
+
+import (
+	"bufio"
+	"bytes"
+	"flag"
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"path"
+	"regexp"
+	"runtime"
+	"strconv"
+	"strings"
+	"time"
+	"unicode"
+	"unicode/utf8"
+
+	"code.google.com/p/go.text/unicode/norm"
+)
+
+func main() {
+	flag.Parse()
+	loadTestData()
+	CharacterByCharacterTests()
+	StandardTests()
+	PerformanceTest()
+	if errorCount == 0 {
+		fmt.Println("PASS")
+	}
+}
+
+const file = "NormalizationTest.txt"
+
+var url = flag.String("url",
+	"http://www.unicode.org/Public/"+unicode.Version+"/ucd/"+file,
+	"URL of Unicode database directory")
+var localFiles = flag.Bool("local",
+	false,
+	"data files have been copied to the current directory; for debugging only")
+
+var logger = log.New(os.Stderr, "", log.Lshortfile)
+
+// This regression test runs the test set in NormalizationTest.txt
+// (taken from http://www.unicode.org/Public/<unicode.Version>/ucd/).
+//
+// NormalizationTest.txt has form:
+// @Part0 # Specific cases
+// #
+// 1E0A;1E0A;0044 0307;1E0A;0044 0307; # (Ḋ; Ḋ; D◌̇; Ḋ; D◌̇; ) LATIN CAPITAL LETTER D WITH DOT ABOVE
+// 1E0C;1E0C;0044 0323;1E0C;0044 0323; # (Ḍ; Ḍ; D◌̣; Ḍ; D◌̣; ) LATIN CAPITAL LETTER D WITH DOT BELOW
+//
+// Each test has 5 columns (c1, c2, c3, c4, c5), where
+// (c1, c2, c3, c4, c5) == (c1, NFC(c1), NFD(c1), NFKC(c1), NFKD(c1))
+//
+// CONFORMANCE:
+// 1. The following invariants must be true for all conformant implementations
+//
+//    NFC
+//      c2 ==  NFC(c1) ==  NFC(c2) ==  NFC(c3)
+//      c4 ==  NFC(c4) ==  NFC(c5)
+//
+//    NFD
+//      c3 ==  NFD(c1) ==  NFD(c2) ==  NFD(c3)
+//      c5 ==  NFD(c4) ==  NFD(c5)
+//
+//    NFKC
+//      c4 == NFKC(c1) == NFKC(c2) == NFKC(c3) == NFKC(c4) == NFKC(c5)
+//
+//    NFKD
+//      c5 == NFKD(c1) == NFKD(c2) == NFKD(c3) == NFKD(c4) == NFKD(c5)
+//
+// 2. For every code point X assigned in this version of Unicode that is not
+//    specifically listed in Part 1, the following invariants must be true
+//    for all conformant implementations:
+//
+//      X == NFC(X) == NFD(X) == NFKC(X) == NFKD(X)
+//
+
+// Column types.
+const (
+	cRaw = iota
+	cNFC
+	cNFD
+	cNFKC
+	cNFKD
+	cMaxColumns
+)
+
+// Holds data from NormalizationTest.txt
+var part []Part
+
+type Part struct {
+	name   string
+	number int
+	tests  []Test
+}
+
+type Test struct {
+	name   string
+	partnr int
+	number int
+	r      rune                // used for character by character test
+	cols   [cMaxColumns]string // Each has 5 entries, see below.
+}
+
+func (t Test) Name() string {
+	if t.number < 0 {
+		return part[t.partnr].name
+	}
+	return fmt.Sprintf("%s:%d", part[t.partnr].name, t.number)
+}
+
+var partRe = regexp.MustCompile(`@Part(\d) # (.*)$`)
+var testRe = regexp.MustCompile(`^` + strings.Repeat(`([\dA-F ]+);`, 5) + ` # (.*)$`)
+
+var counter int
+
+// Load the data form NormalizationTest.txt
+func loadTestData() {
+	if *localFiles {
+		pwd, _ := os.Getwd()
+		*url = "file://" + path.Join(pwd, file)
+	}
+	t := &http.Transport{}
+	t.RegisterProtocol("file", http.NewFileTransport(http.Dir("/")))
+	c := &http.Client{Transport: t}
+	resp, err := c.Get(*url)
+	if err != nil {
+		logger.Fatal(err)
+	}
+	if resp.StatusCode != 200 {
+		logger.Fatal("bad GET status for "+file, resp.Status)
+	}
+	f := resp.Body
+	defer f.Close()
+	scanner := bufio.NewScanner(f)
+	for scanner.Scan() {
+		line := scanner.Text()
+		if len(line) == 0 || line[0] == '#' {
+			continue
+		}
+		m := partRe.FindStringSubmatch(line)
+		if m != nil {
+			if len(m) < 3 {
+				logger.Fatal("Failed to parse Part: ", line)
+			}
+			i, err := strconv.Atoi(m[1])
+			if err != nil {
+				logger.Fatal(err)
+			}
+			name := m[2]
+			part = append(part, Part{name: name[:len(name)-1], number: i})
+			continue
+		}
+		m = testRe.FindStringSubmatch(line)
+		if m == nil || len(m) < 7 {
+			logger.Fatalf(`Failed to parse: "%s" result: %#v`, line, m)
+		}
+		test := Test{name: m[6], partnr: len(part) - 1, number: counter}
+		counter++
+		for j := 1; j < len(m)-1; j++ {
+			for _, split := range strings.Split(m[j], " ") {
+				r, err := strconv.ParseUint(split, 16, 64)
+				if err != nil {
+					logger.Fatal(err)
+				}
+				if test.r == 0 {
+					// save for CharacterByCharacterTests
+					test.r = rune(r)
+				}
+				var buf [utf8.UTFMax]byte
+				sz := utf8.EncodeRune(buf[:], rune(r))
+				test.cols[j-1] += string(buf[:sz])
+			}
+		}
+		part := &part[len(part)-1]
+		part.tests = append(part.tests, test)
+	}
+	if scanner.Err() != nil {
+		logger.Fatal(scanner.Err())
+	}
+}
+
+var fstr = []string{"NFC", "NFD", "NFKC", "NFKD"}
+
+var errorCount int
+
+func cmpResult(t *Test, name string, f norm.Form, gold, test, result string) {
+	if gold != result {
+		errorCount++
+		if errorCount > 20 {
+			return
+		}
+		logger.Printf("%s:%s: %s(%+q)=%+q; want %+q: %s",
+			t.Name(), name, fstr[f], test, result, gold, t.name)
+	}
+}
+
+func cmpIsNormal(t *Test, name string, f norm.Form, test string, result, want bool) {
+	if result != want {
+		errorCount++
+		if errorCount > 20 {
+			return
+		}
+		logger.Printf("%s:%s: %s(%+q)=%v; want %v", t.Name(), name, fstr[f], test, result, want)
+	}
+}
+
+func doTest(t *Test, f norm.Form, gold, test string) {
+	testb := []byte(test)
+	result := f.Bytes(testb)
+	cmpResult(t, "Bytes", f, gold, test, string(result))
+
+	sresult := f.String(test)
+	cmpResult(t, "String", f, gold, test, sresult)
+
+	acc := []byte{}
+	i := norm.Iter{}
+	i.InitString(f, test)
+	for !i.Done() {
+		acc = append(acc, i.Next()...)
+	}
+	cmpResult(t, "Iter.Next", f, gold, test, string(acc))
+
+	buf := make([]byte, 128)
+	acc = nil
+	for p := 0; p < len(testb); {
+		nDst, nSrc, _ := f.Transform(buf, testb[p:], true)
+		acc = append(acc, buf[:nDst]...)
+		p += nSrc
+	}
+	cmpResult(t, "Transform", f, gold, test, string(acc))
+
+	for i := range test {
+		out := f.Append(f.Bytes([]byte(test[:i])), []byte(test[i:])...)
+		cmpResult(t, fmt.Sprintf(":Append:%d", i), f, gold, test, string(out))
+	}
+	cmpIsNormal(t, "IsNormal", f, test, f.IsNormal([]byte(test)), test == gold)
+	cmpIsNormal(t, "IsNormalString", f, test, f.IsNormalString(test), test == gold)
+}
+
+func doConformanceTests(t *Test, partn int) {
+	for i := 0; i <= 2; i++ {
+		doTest(t, norm.NFC, t.cols[1], t.cols[i])
+		doTest(t, norm.NFD, t.cols[2], t.cols[i])
+		doTest(t, norm.NFKC, t.cols[3], t.cols[i])
+		doTest(t, norm.NFKD, t.cols[4], t.cols[i])
+	}
+	for i := 3; i <= 4; i++ {
+		doTest(t, norm.NFC, t.cols[3], t.cols[i])
+		doTest(t, norm.NFD, t.cols[4], t.cols[i])
+		doTest(t, norm.NFKC, t.cols[3], t.cols[i])
+		doTest(t, norm.NFKD, t.cols[4], t.cols[i])
+	}
+}
+
+func CharacterByCharacterTests() {
+	tests := part[1].tests
+	var last rune = 0
+	for i := 0; i <= len(tests); i++ { // last one is special case
+		var r rune
+		if i == len(tests) {
+			r = 0x2FA1E // Don't have to go to 0x10FFFF
+		} else {
+			r = tests[i].r
+		}
+		for last++; last < r; last++ {
+			// Check all characters that were not explicitly listed in the test.
+			t := &Test{partnr: 1, number: -1}
+			char := string(last)
+			doTest(t, norm.NFC, char, char)
+			doTest(t, norm.NFD, char, char)
+			doTest(t, norm.NFKC, char, char)
+			doTest(t, norm.NFKD, char, char)
+		}
+		if i < len(tests) {
+			doConformanceTests(&tests[i], 1)
+		}
+	}
+}
+
+func StandardTests() {
+	for _, j := range []int{0, 2, 3} {
+		for _, test := range part[j].tests {
+			doConformanceTests(&test, j)
+		}
+	}
+}
+
+// PerformanceTest verifies that normalization is O(n). If any of the
+// code does not properly check for maxCombiningChars, normalization
+// may exhibit O(n**2) behavior.
+func PerformanceTest() {
+	runtime.GOMAXPROCS(2)
+	success := make(chan bool, 1)
+	go func() {
+		buf := bytes.Repeat([]byte("\u035D"), 1024*1024)
+		buf = append(buf, "\u035B"...)
+		norm.NFC.Append(nil, buf...)
+		success <- true
+	}()
+	timeout := time.After(1 * time.Second)
+	select {
+	case <-success:
+		// test completed before the timeout
+	case <-timeout:
+		errorCount++
+		logger.Printf(`unexpectedly long time to complete PerformanceTest`)
+	}
+}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/readwriter_test.go

@@ -0,0 +1,56 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package norm
+
+import (
+	"bytes"
+	"fmt"
+	"testing"
+)
+
+var bufSizes = []int{1, 2, 3, 4, 5, 6, 7, 8, 100, 101, 102, 103, 4000, 4001, 4002, 4003}
+
+func readFunc(size int) appendFunc {
+	return func(f Form, out []byte, s string) []byte {
+		out = append(out, s...)
+		r := f.Reader(bytes.NewBuffer(out))
+		buf := make([]byte, size)
+		result := []byte{}
+		for n, err := 0, error(nil); err == nil; {
+			n, err = r.Read(buf)
+			result = append(result, buf[:n]...)
+		}
+		return result
+	}
+}
+
+func TestReader(t *testing.T) {
+	for _, s := range bufSizes {
+		name := fmt.Sprintf("TestReader%d", s)
+		runNormTests(t, name, readFunc(s))
+	}
+}
+
+func writeFunc(size int) appendFunc {
+	return func(f Form, out []byte, s string) []byte {
+		in := append(out, s...)
+		result := new(bytes.Buffer)
+		w := f.Writer(result)
+		buf := make([]byte, size)
+		for n := 0; len(in) > 0; in = in[n:] {
+			n = copy(buf, in)
+			_, _ = w.Write(buf[:n])
+		}
+		w.Close()
+		return result.Bytes()
+	}
+}
+
+func TestWriter(t *testing.T) {
+	for _, s := range bufSizes {
+		name := fmt.Sprintf("TestWriter%d", s)
+		runNormTests(t, name, writeFunc(s))
+	}
+}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/transform.go

@@ -7,16 +7,13 @@ package norm
 import (
 	"unicode/utf8"
 
-	"golang.org/x/text/transform"
+	"code.google.com/p/go.text/transform"
 )
 
-// Reset implements the Reset method of the transform.Transformer interface.
-func (Form) Reset() {}
-
-// Transform implements the Transform method of the transform.Transformer
-// interface. It may need to write segments of up to MaxSegmentSize at once.
-// Users should either catch ErrShortDst and allow dst to grow or have dst be at
-// least of size MaxTransformChunkSize to be guaranteed of progress.
+// Transform implements the transform.Transformer interface. It may need to
+// write segments of up to MaxSegmentSize at once. Users should either catch
+// ErrShortDst and allow dst to grow or have dst be at least of size
+// MaxTransformChunkSize to be guaranteed of progress.
 func (f Form) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
 	n := 0
 	// Cap the maximum number of src bytes to check.

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/transform_test.go

@@ -0,0 +1,101 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package norm
+
+import (
+	"fmt"
+	"testing"
+
+	"code.google.com/p/go.text/transform"
+)
+
+func TestTransform(t *testing.T) {
+	tests := []struct {
+		f       Form
+		in, out string
+		eof     bool
+		dstSize int
+		err     error
+	}{
+		{NFC, "ab", "ab", true, 2, nil},
+		{NFC, "qx", "qx", true, 2, nil},
+		{NFD, "qx", "qx", true, 2, nil},
+		{NFC, "", "", true, 1, nil},
+		{NFD, "", "", true, 1, nil},
+		{NFC, "", "", false, 1, nil},
+		{NFD, "", "", false, 1, nil},
+
+		// Normalized segment does not fit in destination.
+		{NFD, "ö", "", true, 1, transform.ErrShortDst},
+		{NFD, "ö", "", true, 2, transform.ErrShortDst},
+
+		// As an artifact of the algorithm, only full segments are written.
+		// This is not strictly required, and some bytes could be written.
+		// In practice, for Transform to not block, the destination buffer
+		// should be at least MaxSegmentSize to work anyway and these edge
+		// conditions will be relatively rare.
+		{NFC, "ab", "", true, 1, transform.ErrShortDst},
+		// This is even true for inert runes.
+		{NFC, "qx", "", true, 1, transform.ErrShortDst},
+		{NFC, "a\u0300abc", "\u00e0a", true, 4, transform.ErrShortDst},
+
+		// We cannot write a segment if succesive runes could still change the result.
+		{NFD, "ö", "", false, 3, transform.ErrShortSrc},
+		{NFC, "a\u0300", "", false, 4, transform.ErrShortSrc},
+		{NFD, "a\u0300", "", false, 4, transform.ErrShortSrc},
+		{NFC, "ö", "", false, 3, transform.ErrShortSrc},
+
+		{NFC, "a\u0300", "", true, 1, transform.ErrShortDst},
+		// Theoretically could fit, but won't due to simplified checks.
+		{NFC, "a\u0300", "", true, 2, transform.ErrShortDst},
+		{NFC, "a\u0300", "", true, 3, transform.ErrShortDst},
+		{NFC, "a\u0300", "\u00e0", true, 4, nil},
+
+		{NFD, "öa\u0300", "o\u0308", false, 8, transform.ErrShortSrc},
+		{NFD, "öa\u0300ö", "o\u0308a\u0300", true, 8, transform.ErrShortDst},
+		{NFD, "öa\u0300ö", "o\u0308a\u0300", false, 12, transform.ErrShortSrc},
+
+		// Illegal input is copied verbatim.
+		{NFD, "\xbd\xb2=\xbc ", "\xbd\xb2=\xbc ", true, 8, nil},
+	}
+	b := make([]byte, 100)
+	for i, tt := range tests {
+		nDst, _, err := tt.f.Transform(b[:tt.dstSize], []byte(tt.in), tt.eof)
+		out := string(b[:nDst])
+		if out != tt.out || err != tt.err {
+			t.Errorf("%d: was %+q (%v); want %+q (%v)", i, out, err, tt.out, tt.err)
+		}
+		if want := tt.f.String(tt.in)[:nDst]; want != out {
+			t.Errorf("%d: incorect normalization: was %+q; want %+q", i, out, want)
+		}
+	}
+}
+
+var transBufSizes = []int{
+	MaxTransformChunkSize,
+	3 * MaxTransformChunkSize / 2,
+	2 * MaxTransformChunkSize,
+	3 * MaxTransformChunkSize,
+	100 * MaxTransformChunkSize,
+}
+
+func doTransNorm(f Form, buf []byte, b []byte) []byte {
+	acc := []byte{}
+	for p := 0; p < len(b); {
+		nd, ns, _ := f.Transform(buf[:], b[p:], true)
+		p += ns
+		acc = append(acc, buf[:nd]...)
+	}
+	return acc
+}
+
+func TestTransformNorm(t *testing.T) {
+	for _, sz := range transBufSizes {
+		buf := make([]byte, sz)
+		runNormTests(t, fmt.Sprintf("Transform:%d", sz), func(f Form, out []byte, s string) []byte {
+			return doTransNorm(f, buf, append(out, s...))
+		})
+	}
+}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/trie.go

@@ -0,0 +1,232 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package norm
+
+type valueRange struct {
+	value  uint16 // header: value:stride
+	lo, hi byte   // header: lo:n
+}
+
+type trie struct {
+	index        []uint8
+	values       []uint16
+	sparse       []valueRange
+	sparseOffset []uint16
+	cutoff       uint8 // indices >= cutoff are sparse
+}
+
+// lookupValue determines the type of block n and looks up the value for b.
+// For n < t.cutoff, the block is a simple lookup table. Otherwise, the block
+// is a list of ranges with an accompanying value. Given a matching range r,
+// the value for b is by r.value + (b - r.lo) * stride.
+func (t *trie) lookupValue(n uint8, b byte) uint16 {
+	if n < t.cutoff {
+		return t.values[uint16(n)<<6+uint16(b)]
+	}
+	offset := t.sparseOffset[n-t.cutoff]
+	header := t.sparse[offset]
+	lo := offset + 1
+	hi := lo + uint16(header.lo)
+	for lo < hi {
+		m := lo + (hi-lo)/2
+		r := t.sparse[m]
+		if r.lo <= b && b <= r.hi {
+			return r.value + uint16(b-r.lo)*header.value
+		}
+		if b < r.lo {
+			hi = m
+		} else {
+			lo = m + 1
+		}
+	}
+	return 0
+}
+
+const (
+	t1 = 0x00 // 0000 0000
+	tx = 0x80 // 1000 0000
+	t2 = 0xC0 // 1100 0000
+	t3 = 0xE0 // 1110 0000
+	t4 = 0xF0 // 1111 0000
+	t5 = 0xF8 // 1111 1000
+	t6 = 0xFC // 1111 1100
+	te = 0xFE // 1111 1110
+)
+
+// lookup returns the trie value for the first UTF-8 encoding in s and
+// the width in bytes of this encoding. The size will be 0 if s does not
+// hold enough bytes to complete the encoding. len(s) must be greater than 0.
+func (t *trie) lookup(s []byte) (v uint16, sz int) {
+	c0 := s[0]
+	switch {
+	case c0 < tx:
+		return t.values[c0], 1
+	case c0 < t2:
+		return 0, 1
+	case c0 < t3:
+		if len(s) < 2 {
+			return 0, 0
+		}
+		i := t.index[c0]
+		c1 := s[1]
+		if c1 < tx || t2 <= c1 {
+			return 0, 1
+		}
+		return t.lookupValue(i, c1), 2
+	case c0 < t4:
+		if len(s) < 3 {
+			return 0, 0
+		}
+		i := t.index[c0]
+		c1 := s[1]
+		if c1 < tx || t2 <= c1 {
+			return 0, 1
+		}
+		o := uint16(i)<<6 + uint16(c1)
+		i = t.index[o]
+		c2 := s[2]
+		if c2 < tx || t2 <= c2 {
+			return 0, 2
+		}
+		return t.lookupValue(i, c2), 3
+	case c0 < t5:
+		if len(s) < 4 {
+			return 0, 0
+		}
+		i := t.index[c0]
+		c1 := s[1]
+		if c1 < tx || t2 <= c1 {
+			return 0, 1
+		}
+		o := uint16(i)<<6 + uint16(c1)
+		i = t.index[o]
+		c2 := s[2]
+		if c2 < tx || t2 <= c2 {
+			return 0, 2
+		}
+		o = uint16(i)<<6 + uint16(c2)
+		i = t.index[o]
+		c3 := s[3]
+		if c3 < tx || t2 <= c3 {
+			return 0, 3
+		}
+		return t.lookupValue(i, c3), 4
+	}
+	// Illegal rune
+	return 0, 1
+}
+
+// lookupString returns the trie value for the first UTF-8 encoding in s and
+// the width in bytes of this encoding. The size will be 0 if s does not
+// hold enough bytes to complete the encoding. len(s) must be greater than 0.
+func (t *trie) lookupString(s string) (v uint16, sz int) {
+	c0 := s[0]
+	switch {
+	case c0 < tx:
+		return t.values[c0], 1
+	case c0 < t2:
+		return 0, 1
+	case c0 < t3:
+		if len(s) < 2 {
+			return 0, 0
+		}
+		i := t.index[c0]
+		c1 := s[1]
+		if c1 < tx || t2 <= c1 {
+			return 0, 1
+		}
+		return t.lookupValue(i, c1), 2
+	case c0 < t4:
+		if len(s) < 3 {
+			return 0, 0
+		}
+		i := t.index[c0]
+		c1 := s[1]
+		if c1 < tx || t2 <= c1 {
+			return 0, 1
+		}
+		o := uint16(i)<<6 + uint16(c1)
+		i = t.index[o]
+		c2 := s[2]
+		if c2 < tx || t2 <= c2 {
+			return 0, 2
+		}
+		return t.lookupValue(i, c2), 3
+	case c0 < t5:
+		if len(s) < 4 {
+			return 0, 0
+		}
+		i := t.index[c0]
+		c1 := s[1]
+		if c1 < tx || t2 <= c1 {
+			return 0, 1
+		}
+		o := uint16(i)<<6 + uint16(c1)
+		i = t.index[o]
+		c2 := s[2]
+		if c2 < tx || t2 <= c2 {
+			return 0, 2
+		}
+		o = uint16(i)<<6 + uint16(c2)
+		i = t.index[o]
+		c3 := s[3]
+		if c3 < tx || t2 <= c3 {
+			return 0, 3
+		}
+		return t.lookupValue(i, c3), 4
+	}
+	// Illegal rune
+	return 0, 1
+}
+
+// lookupUnsafe returns the trie value for the first UTF-8 encoding in s.
+// s must hold a full encoding.
+func (t *trie) lookupUnsafe(s []byte) uint16 {
+	c0 := s[0]
+	if c0 < tx {
+		return t.values[c0]
+	}
+	if c0 < t2 {
+		return 0
+	}
+	i := t.index[c0]
+	if c0 < t3 {
+		return t.lookupValue(i, s[1])
+	}
+	i = t.index[uint16(i)<<6+uint16(s[1])]
+	if c0 < t4 {
+		return t.lookupValue(i, s[2])
+	}
+	i = t.index[uint16(i)<<6+uint16(s[2])]
+	if c0 < t5 {
+		return t.lookupValue(i, s[3])
+	}
+	return 0
+}
+
+// lookupStringUnsafe returns the trie value for the first UTF-8 encoding in s.
+// s must hold a full encoding.
+func (t *trie) lookupStringUnsafe(s string) uint16 {
+	c0 := s[0]
+	if c0 < tx {
+		return t.values[c0]
+	}
+	if c0 < t2 {
+		return 0
+	}
+	i := t.index[c0]
+	if c0 < t3 {
+		return t.lookupValue(i, s[1])
+	}
+	i = t.index[uint16(i)<<6+uint16(s[1])]
+	if c0 < t4 {
+		return t.lookupValue(i, s[2])
+	}
+	i = t.index[uint16(i)<<6+uint16(s[2])]
+	if c0 < t5 {
+		return t.lookupValue(i, s[3])
+	}
+	return 0
+}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/trie_test.go

@@ -0,0 +1,152 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package norm
+
+import (
+	"testing"
+	"unicode/utf8"
+)
+
+// Test data is located in triedata_test.go; generated by maketesttables.
+var testdata = testdataTrie
+
+type rangeTest struct {
+	block   uint8
+	lookup  byte
+	result  uint16
+	table   []valueRange
+	offsets []uint16
+}
+
+var range1Off = []uint16{0, 2}
+var range1 = []valueRange{
+	{0, 1, 0},
+	{1, 0x80, 0x80},
+	{0, 2, 0},
+	{1, 0x80, 0x80},
+	{9, 0xff, 0xff},
+}
+
+var rangeTests = []rangeTest{
+	{10, 0x80, 1, range1, range1Off},
+	{10, 0x00, 0, range1, range1Off},
+	{11, 0x80, 1, range1, range1Off},
+	{11, 0xff, 9, range1, range1Off},
+	{11, 0x00, 0, range1, range1Off},
+}
+
+func TestLookupSparse(t *testing.T) {
+	for i, test := range rangeTests {
+		n := trie{sparse: test.table, sparseOffset: test.offsets, cutoff: 10}
+		v := n.lookupValue(test.block, test.lookup)
+		if v != test.result {
+			t.Errorf("LookupSparse:%d: found %X; want %X", i, v, test.result)
+		}
+	}
+}
+
+// Test cases for illegal runes.
+type trietest struct {
+	size  int
+	bytes []byte
+}
+
+var tests = []trietest{
+	// illegal runes
+	{1, []byte{0x80}},
+	{1, []byte{0xFF}},
+	{1, []byte{t2, tx - 1}},
+	{1, []byte{t2, t2}},
+	{2, []byte{t3, tx, tx - 1}},
+	{2, []byte{t3, tx, t2}},
+	{1, []byte{t3, tx - 1, tx}},
+	{3, []byte{t4, tx, tx, tx - 1}},
+	{3, []byte{t4, tx, tx, t2}},
+	{1, []byte{t4, t2, tx, tx - 1}},
+	{2, []byte{t4, tx, t2, tx - 1}},
+
+	// short runes
+	{0, []byte{t2}},
+	{0, []byte{t3, tx}},
+	{0, []byte{t4, tx, tx}},
+
+	// we only support UTF-8 up to utf8.UTFMax bytes (4 bytes)
+	{1, []byte{t5, tx, tx, tx, tx}},
+	{1, []byte{t6, tx, tx, tx, tx, tx}},
+}
+
+func mkUTF8(r rune) ([]byte, int) {
+	var b [utf8.UTFMax]byte
+	sz := utf8.EncodeRune(b[:], r)
+	return b[:sz], sz
+}
+
+func TestLookup(t *testing.T) {
+	for i, tt := range testRunes {
+		b, szg := mkUTF8(tt)
+		v, szt := testdata.lookup(b)
+		if int(v) != i {
+			t.Errorf("lookup(%U): found value %#x, expected %#x", tt, v, i)
+		}
+		if szt != szg {
+			t.Errorf("lookup(%U): found size %d, expected %d", tt, szt, szg)
+		}
+	}
+	for i, tt := range tests {
+		v, sz := testdata.lookup(tt.bytes)
+		if v != 0 {
+			t.Errorf("lookup of illegal rune, case %d: found value %#x, expected 0", i, v)
+		}
+		if sz != tt.size {
+			t.Errorf("lookup of illegal rune, case %d: found size %d, expected %d", i, sz, tt.size)
+		}
+	}
+	// Verify defaults.
+	if v, _ := testdata.lookup([]byte{0xC1, 0x8C}); v != 0 {
+		t.Errorf("lookup of non-existing rune should be 0; found %X", v)
+	}
+}
+
+func TestLookupUnsafe(t *testing.T) {
+	for i, tt := range testRunes {
+		b, _ := mkUTF8(tt)
+		v := testdata.lookupUnsafe(b)
+		if int(v) != i {
+			t.Errorf("lookupUnsafe(%U): found value %#x, expected %#x", i, v, i)
+		}
+	}
+}
+
+func TestLookupString(t *testing.T) {
+	for i, tt := range testRunes {
+		b, szg := mkUTF8(tt)
+		v, szt := testdata.lookupString(string(b))
+		if int(v) != i {
+			t.Errorf("lookup(%U): found value %#x, expected %#x", i, v, i)
+		}
+		if szt != szg {
+			t.Errorf("lookup(%U): found size %d, expected %d", i, szt, szg)
+		}
+	}
+	for i, tt := range tests {
+		v, sz := testdata.lookupString(string(tt.bytes))
+		if int(v) != 0 {
+			t.Errorf("lookup of illegal rune, case %d: found value %#x, expected 0", i, v)
+		}
+		if sz != tt.size {
+			t.Errorf("lookup of illegal rune, case %d: found size %d, expected %d", i, sz, tt.size)
+		}
+	}
+}
+
+func TestLookupStringUnsafe(t *testing.T) {
+	for i, tt := range testRunes {
+		b, _ := mkUTF8(tt)
+		v := testdata.lookupStringUnsafe(string(b))
+		if int(v) != i {
+			t.Errorf("lookupUnsafe(%U): found value %#x, expected %#x", i, v, i)
+		}
+	}
+}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/triedata_test.go

@@ -0,0 +1,85 @@
+// Generated by running
+//	maketesttables
+// DO NOT EDIT
+
+package norm
+
+var testRunes = []int32{1, 12, 127, 128, 256, 2047, 2048, 2457, 65535, 65536, 65793, 1114111, 512, 513, 514, 528, 533}
+
+// testdataValues: 192 entries, 384 bytes
+// Block 2 is the null block.
+var testdataValues = [192]uint16{
+	// Block 0x0, offset 0x0
+	0x000c: 0x0001,
+	// Block 0x1, offset 0x40
+	0x007f: 0x0002,
+	// Block 0x2, offset 0x80
+}
+
+// testdataSparseOffset: 10 entries, 20 bytes
+var testdataSparseOffset = []uint16{0x0, 0x2, 0x4, 0x8, 0xa, 0xc, 0xe, 0x10, 0x12, 0x14}
+
+// testdataSparseValues: 22 entries, 88 bytes
+var testdataSparseValues = [22]valueRange{
+	// Block 0x0, offset 0x1
+	{value: 0x0000, lo: 0x01},
+	{value: 0x0003, lo: 0x80, hi: 0x80},
+	// Block 0x1, offset 0x2
+	{value: 0x0000, lo: 0x01},
+	{value: 0x0004, lo: 0x80, hi: 0x80},
+	// Block 0x2, offset 0x3
+	{value: 0x0001, lo: 0x03},
+	{value: 0x000c, lo: 0x80, hi: 0x82},
+	{value: 0x000f, lo: 0x90, hi: 0x90},
+	{value: 0x0010, lo: 0x95, hi: 0x95},
+	// Block 0x3, offset 0x4
+	{value: 0x0000, lo: 0x01},
+	{value: 0x0005, lo: 0xbf, hi: 0xbf},
+	// Block 0x4, offset 0x5
+	{value: 0x0000, lo: 0x01},
+	{value: 0x0006, lo: 0x80, hi: 0x80},
+	// Block 0x5, offset 0x6
+	{value: 0x0000, lo: 0x01},
+	{value: 0x0007, lo: 0x99, hi: 0x99},
+	// Block 0x6, offset 0x7
+	{value: 0x0000, lo: 0x01},
+	{value: 0x0008, lo: 0xbf, hi: 0xbf},
+	// Block 0x7, offset 0x8
+	{value: 0x0000, lo: 0x01},
+	{value: 0x0009, lo: 0x80, hi: 0x80},
+	// Block 0x8, offset 0x9
+	{value: 0x0000, lo: 0x01},
+	{value: 0x000a, lo: 0x81, hi: 0x81},
+	// Block 0x9, offset 0xa
+	{value: 0x0000, lo: 0x01},
+	{value: 0x000b, lo: 0xbf, hi: 0xbf},
+}
+
+// testdataLookup: 640 bytes
+// Block 0 is the null block.
+var testdataLookup = [640]uint8{
+	// Block 0x0, offset 0x0
+	// Block 0x1, offset 0x40
+	// Block 0x2, offset 0x80
+	// Block 0x3, offset 0xc0
+	0x0c2: 0x01, 0x0c4: 0x02,
+	0x0c8: 0x03,
+	0x0df: 0x04,
+	0x0e0: 0x02,
+	0x0ef: 0x03,
+	0x0f0: 0x05, 0x0f4: 0x07,
+	// Block 0x4, offset 0x100
+	0x120: 0x05, 0x126: 0x06,
+	// Block 0x5, offset 0x140
+	0x17f: 0x07,
+	// Block 0x6, offset 0x180
+	0x180: 0x08, 0x184: 0x09,
+	// Block 0x7, offset 0x1c0
+	0x1d0: 0x04,
+	// Block 0x8, offset 0x200
+	0x23f: 0x0a,
+	// Block 0x9, offset 0x240
+	0x24f: 0x06,
+}
+
+var testdataTrie = trie{testdataLookup[:], testdataValues[:], testdataSparseValues[:], testdataSparseOffset[:], 1}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/triegen.go

@@ -0,0 +1,317 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build ignore
+
+// Trie table generator.
+// Used by make*tables tools to generate a go file with trie data structures
+// for mapping UTF-8 to a 16-bit value. All but the last byte in a UTF-8 byte
+// sequence are used to lookup offsets in the index table to be used for the
+// next byte. The last byte is used to index into a table with 16-bit values.
+
+package main
+
+import (
+	"fmt"
+	"hash/crc32"
+	"log"
+	"unicode/utf8"
+)
+
+const (
+	blockSize        = 64
+	blockOffset      = 2 // Subtract two blocks to compensate for the 0x80 added to continuation bytes.
+	maxSparseEntries = 16
+)
+
+// Intermediate trie structure
+type trieNode struct {
+	table [256]*trieNode
+	value int
+	b     byte
+	leaf  bool
+}
+
+func newNode() *trieNode {
+	return new(trieNode)
+}
+
+func (n trieNode) String() string {
+	s := fmt.Sprint("trieNode{table: { non-nil at index: ")
+	for i, v := range n.table {
+		if v != nil {
+			s += fmt.Sprintf("%d, ", i)
+		}
+	}
+	s += fmt.Sprintf("}, value:%#x, b:%#x leaf:%v}", n.value, n.b, n.leaf)
+	return s
+}
+
+func (n trieNode) isInternal() bool {
+	internal := true
+	for i := 0; i < 256; i++ {
+		if nn := n.table[i]; nn != nil {
+			if !internal && !nn.leaf {
+				log.Fatalf("triegen: isInternal: node contains both leaf and non-leaf children (%v)", n)
+			}
+			internal = internal && !nn.leaf
+		}
+	}
+	return internal
+}
+
+func (n trieNode) mostFrequentStride() int {
+	counts := make(map[int]int)
+	v := 0
+	for _, t := range n.table[0x80 : 0x80+blockSize] {
+		if t != nil {
+			if stride := t.value - v; v != 0 && stride >= 0 {
+				counts[stride]++
+			}
+			v = t.value
+		} else {
+			v = 0
+		}
+	}
+	var maxs, maxc int
+	for stride, cnt := range counts {
+		if cnt > maxc || (cnt == maxc && stride < maxs) {
+			maxs, maxc = stride, cnt
+		}
+	}
+	return maxs
+}
+
+func (n trieNode) countSparseEntries() int {
+	stride := n.mostFrequentStride()
+	var count, v int
+	for _, t := range n.table[0x80 : 0x80+blockSize] {
+		tv := 0
+		if t != nil {
+			tv = t.value
+		}
+		if tv-v != stride {
+			if tv != 0 {
+				count++
+			}
+		}
+		v = tv
+	}
+	return count
+}
+
+func (n *trieNode) insert(r rune, value uint16) {
+	var p [utf8.UTFMax]byte
+	sz := utf8.EncodeRune(p[:], r)
+
+	for i := 0; i < sz; i++ {
+		if n.leaf {
+			log.Fatalf("triegen: insert: node (%#v) should not be a leaf", n)
+		}
+		nn := n.table[p[i]]
+		if nn == nil {
+			nn = newNode()
+			nn.b = p[i]
+			n.table[p[i]] = nn
+		}
+		n = nn
+	}
+	n.value = int(value)
+	n.leaf = true
+}
+
+type nodeIndex struct {
+	lookupBlocks []*trieNode
+	valueBlocks  []*trieNode
+	sparseBlocks []*trieNode
+	sparseOffset []uint16
+	sparseCount  int
+
+	lookupBlockIdx map[uint32]int
+	valueBlockIdx  map[uint32]int
+}
+
+func newIndex() *nodeIndex {
+	index := &nodeIndex{}
+	index.lookupBlocks = make([]*trieNode, 0)
+	index.valueBlocks = make([]*trieNode, 0)
+	index.sparseBlocks = make([]*trieNode, 0)
+	index.sparseOffset = make([]uint16, 1)
+	index.lookupBlockIdx = make(map[uint32]int)
+	index.valueBlockIdx = make(map[uint32]int)
+	return index
+}
+
+func computeOffsets(index *nodeIndex, n *trieNode) int {
+	if n.leaf {
+		return n.value
+	}
+	hasher := crc32.New(crc32.MakeTable(crc32.IEEE))
+	// We only index continuation bytes.
+	for i := 0; i < blockSize; i++ {
+		v := 0
+		if nn := n.table[0x80+i]; nn != nil {
+			v = computeOffsets(index, nn)
+		}
+		hasher.Write([]byte{uint8(v >> 8), uint8(v)})
+	}
+	h := hasher.Sum32()
+	if n.isInternal() {
+		v, ok := index.lookupBlockIdx[h]
+		if !ok {
+			v = len(index.lookupBlocks) - blockOffset
+			index.lookupBlocks = append(index.lookupBlocks, n)
+			index.lookupBlockIdx[h] = v
+		}
+		n.value = v
+	} else {
+		v, ok := index.valueBlockIdx[h]
+		if !ok {
+			if c := n.countSparseEntries(); c > maxSparseEntries {
+				v = len(index.valueBlocks) - blockOffset
+				index.valueBlocks = append(index.valueBlocks, n)
+				index.valueBlockIdx[h] = v
+			} else {
+				v = -len(index.sparseOffset)
+				index.sparseBlocks = append(index.sparseBlocks, n)
+				index.sparseOffset = append(index.sparseOffset, uint16(index.sparseCount))
+				index.sparseCount += c + 1
+				index.valueBlockIdx[h] = v
+			}
+		}
+		n.value = v
+	}
+	return n.value
+}
+
+func printValueBlock(nr int, n *trieNode, offset int) {
+	boff := nr * blockSize
+	fmt.Printf("\n// Block %#x, offset %#x", nr, boff)
+	var printnewline bool
+	for i := 0; i < blockSize; i++ {
+		if i%6 == 0 {
+			printnewline = true
+		}
+		v := 0
+		if nn := n.table[i+offset]; nn != nil {
+			v = nn.value
+		}
+		if v != 0 {
+			if printnewline {
+				fmt.Printf("\n")
+				printnewline = false
+			}
+			fmt.Printf("%#04x:%#04x, ", boff+i, v)
+		}
+	}
+}
+
+func printSparseBlock(nr int, n *trieNode) {
+	boff := -n.value
+	fmt.Printf("\n// Block %#x, offset %#x", nr, boff)
+	v := 0
+	//stride := f(n)
+	stride := n.mostFrequentStride()
+	c := n.countSparseEntries()
+	fmt.Printf("\n{value:%#04x,lo:%#02x},", stride, uint8(c))
+	for i, nn := range n.table[0x80 : 0x80+blockSize] {
+		nv := 0
+		if nn != nil {
+			nv = nn.value
+		}
+		if nv-v != stride {
+			if v != 0 {
+				fmt.Printf(",hi:%#02x},", 0x80+i-1)
+			}
+			if nv != 0 {
+				fmt.Printf("\n{value:%#04x,lo:%#02x", nv, nn.b)
+			}
+		}
+		v = nv
+	}
+	if v != 0 {
+		fmt.Printf(",hi:%#02x},", 0x80+blockSize-1)
+	}
+}
+
+func printLookupBlock(nr int, n *trieNode, offset, cutoff int) {
+	boff := nr * blockSize
+	fmt.Printf("\n// Block %#x, offset %#x", nr, boff)
+	var printnewline bool
+	for i := 0; i < blockSize; i++ {
+		if i%8 == 0 {
+			printnewline = true
+		}
+		v := 0
+		if nn := n.table[i+offset]; nn != nil {
+			v = nn.value
+		}
+		if v != 0 {
+			if v < 0 {
+				v = -v - 1 + cutoff
+			}
+			if printnewline {
+				fmt.Printf("\n")
+				printnewline = false
+			}
+			fmt.Printf("%#03x:%#02x, ", boff+i, v)
+		}
+	}
+}
+
+// printTables returns the size in bytes of the generated tables.
+func (t *trieNode) printTables(name string) int {
+	index := newIndex()
+	// Values for 7-bit ASCII are stored in first two block, followed by nil block.
+	index.valueBlocks = append(index.valueBlocks, nil, nil, nil)
+	// First byte of multi-byte UTF-8 codepoints are indexed in 4th block.
+	index.lookupBlocks = append(index.lookupBlocks, nil, nil, nil, nil)
+	// Index starter bytes of multi-byte UTF-8.
+	for i := 0xC0; i < 0x100; i++ {
+		if t.table[i] != nil {
+			computeOffsets(index, t.table[i])
+		}
+	}
+
+	nv := len(index.valueBlocks) * blockSize
+	fmt.Printf("// %sValues: %d entries, %d bytes\n", name, nv, nv*2)
+	fmt.Printf("// Block 2 is the null block.\n")
+	fmt.Printf("var %sValues = [%d]uint16 {", name, nv)
+	printValueBlock(0, t, 0)
+	printValueBlock(1, t, 64)
+	printValueBlock(2, newNode(), 0)
+	for i := 3; i < len(index.valueBlocks); i++ {
+		printValueBlock(i, index.valueBlocks[i], 0x80)
+	}
+	fmt.Print("\n}\n\n")
+
+	ls := len(index.sparseBlocks)
+	fmt.Printf("// %sSparseOffset: %d entries, %d bytes\n", name, ls, ls*2)
+	fmt.Printf("var %sSparseOffset = %#v\n\n", name, index.sparseOffset[1:])
+
+	ns := index.sparseCount
+	fmt.Printf("// %sSparseValues: %d entries, %d bytes\n", name, ns, ns*4)
+	fmt.Printf("var %sSparseValues = [%d]valueRange {", name, ns)
+	for i, n := range index.sparseBlocks {
+		printSparseBlock(i, n)
+	}
+	fmt.Print("\n}\n\n")
+
+	cutoff := len(index.valueBlocks) - blockOffset
+	ni := len(index.lookupBlocks) * blockSize
+	fmt.Printf("// %sLookup: %d bytes\n", name, ni)
+	fmt.Printf("// Block 0 is the null block.\n")
+	fmt.Printf("var %sLookup = [%d]uint8 {", name, ni)
+	printLookupBlock(0, newNode(), 0, cutoff)
+	printLookupBlock(1, newNode(), 0, cutoff)
+	printLookupBlock(2, newNode(), 0, cutoff)
+	printLookupBlock(3, t, 0xC0, cutoff)
+	for i := 4; i < len(index.lookupBlocks); i++ {
+		printLookupBlock(i, index.lookupBlocks[i], 0x80, cutoff)
+	}
+	fmt.Print("\n}\n\n")
+	fmt.Printf("var %sTrie = trie{ %sLookup[:], %sValues[:], %sSparseValues[:], %sSparseOffset[:], %d}\n\n",
+		name, name, name, name, name, cutoff)
+	return nv*2 + ns*4 + ni + ls*2
+}

Godeps/_workspace/src/code.google.com/p/snappy-go/snappy/decode.go

@@ -0,0 +1,124 @@
+// Copyright 2011 The Snappy-Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package snappy
+
+import (
+	"encoding/binary"
+	"errors"
+)
+
+// ErrCorrupt reports that the input is invalid.
+var ErrCorrupt = errors.New("snappy: corrupt input")
+
+// DecodedLen returns the length of the decoded block.
+func DecodedLen(src []byte) (int, error) {
+	v, _, err := decodedLen(src)
+	return v, err
+}
+
+// decodedLen returns the length of the decoded block and the number of bytes
+// that the length header occupied.
+func decodedLen(src []byte) (blockLen, headerLen int, err error) {
+	v, n := binary.Uvarint(src)
+	if n == 0 {
+		return 0, 0, ErrCorrupt
+	}
+	if uint64(int(v)) != v {
+		return 0, 0, errors.New("snappy: decoded block is too large")
+	}
+	return int(v), n, nil
+}
+
+// Decode returns the decoded form of src. The returned slice may be a sub-
+// slice of dst if dst was large enough to hold the entire decoded block.
+// Otherwise, a newly allocated slice will be returned.
+// It is valid to pass a nil dst.
+func Decode(dst, src []byte) ([]byte, error) {
+	dLen, s, err := decodedLen(src)
+	if err != nil {
+		return nil, err
+	}
+	if len(dst) < dLen {
+		dst = make([]byte, dLen)
+	}
+
+	var d, offset, length int
+	for s < len(src) {
+		switch src[s] & 0x03 {
+		case tagLiteral:
+			x := uint(src[s] >> 2)
+			switch {
+			case x < 60:
+				s += 1
+			case x == 60:
+				s += 2
+				if s > len(src) {
+					return nil, ErrCorrupt
+				}
+				x = uint(src[s-1])
+			case x == 61:
+				s += 3
+				if s > len(src) {
+					return nil, ErrCorrupt
+				}
+				x = uint(src[s-2]) | uint(src[s-1])<<8
+			case x == 62:
+				s += 4
+				if s > len(src) {
+					return nil, ErrCorrupt
+				}
+				x = uint(src[s-3]) | uint(src[s-2])<<8 | uint(src[s-1])<<16
+			case x == 63:
+				s += 5
+				if s > len(src) {
+					return nil, ErrCorrupt
+				}
+				x = uint(src[s-4]) | uint(src[s-3])<<8 | uint(src[s-2])<<16 | uint(src[s-1])<<24
+			}
+			length = int(x + 1)
+			if length <= 0 {
+				return nil, errors.New("snappy: unsupported literal length")
+			}
+			if length > len(dst)-d || length > len(src)-s {
+				return nil, ErrCorrupt
+			}
+			copy(dst[d:], src[s:s+length])
+			d += length
+			s += length
+			continue
+
+		case tagCopy1:
+			s += 2
+			if s > len(src) {
+				return nil, ErrCorrupt
+			}
+			length = 4 + int(src[s-2])>>2&0x7
+			offset = int(src[s-2])&0xe0<<3 | int(src[s-1])
+
+		case tagCopy2:
+			s += 3
+			if s > len(src) {
+				return nil, ErrCorrupt
+			}
+			length = 1 + int(src[s-3])>>2
+			offset = int(src[s-2]) | int(src[s-1])<<8
+
+		case tagCopy4:
+			return nil, errors.New("snappy: unsupported COPY_4 tag")
+		}
+
+		end := d + length
+		if offset > d || end > len(dst) {
+			return nil, ErrCorrupt
+		}
+		for ; d < end; d++ {
+			dst[d] = dst[d-offset]
+		}
+	}
+	if d != dLen {
+		return nil, ErrCorrupt
+	}
+	return dst[:d], nil
+}

Godeps/_workspace/src/code.google.com/p/snappy-go/snappy/encode.go

@@ -6,7 +6,6 @@ package snappy
 
 import (
 	"encoding/binary"
-	"io"
 )
 
 // We limit how far copy back-references can go, the same as the C++ code.
@@ -79,7 +78,7 @@ func emitCopy(dst []byte, offset, length int) int {
 // slice of dst if dst was large enough to hold the entire encoded block.
 // Otherwise, a newly allocated slice will be returned.
 // It is valid to pass a nil dst.
-func Encode(dst, src []byte) []byte {
+func Encode(dst, src []byte) ([]byte, error) {
 	if n := MaxEncodedLen(len(src)); len(dst) < n {
 		dst = make([]byte, n)
 	}
@@ -92,7 +91,7 @@ func Encode(dst, src []byte) []byte {
 		if len(src) != 0 {
 			d += emitLiteral(dst[d:], src)
 		}
-		return dst[:d]
+		return dst[:d], nil
 	}
 
 	// Initialize the hash table. Its size ranges from 1<<8 to 1<<14 inclusive.
@@ -145,7 +144,7 @@ func Encode(dst, src []byte) []byte {
 	if lit != len(src) {
 		d += emitLiteral(dst[d:], src[lit:])
 	}
-	return dst[:d]
+	return dst[:d], nil
 }
 
 // MaxEncodedLen returns the maximum length of a snappy block, given its
@@ -173,82 +172,3 @@ func MaxEncodedLen(srcLen int) int {
 	// This last factor dominates the blowup, so the final estimate is:
 	return 32 + srcLen + srcLen/6
 }
-
-// NewWriter returns a new Writer that compresses to w, using the framing
-// format described at
-// https://github.com/google/snappy/blob/master/framing_format.txt
-func NewWriter(w io.Writer) *Writer {
-	return &Writer{
-		w:   w,
-		enc: make([]byte, MaxEncodedLen(maxUncompressedChunkLen)),
-	}
-}
-
-// Writer is an io.Writer than can write Snappy-compressed bytes.
-type Writer struct {
-	w           io.Writer
-	err         error
-	enc         []byte
-	buf         [checksumSize + chunkHeaderSize]byte
-	wroteHeader bool
-}
-
-// Reset discards the writer's state and switches the Snappy writer to write to
-// w. This permits reusing a Writer rather than allocating a new one.
-func (w *Writer) Reset(writer io.Writer) {
-	w.w = writer
-	w.err = nil
-	w.wroteHeader = false
-}
-
-// Write satisfies the io.Writer interface.
-func (w *Writer) Write(p []byte) (n int, errRet error) {
-	if w.err != nil {
-		return 0, w.err
-	}
-	if !w.wroteHeader {
-		copy(w.enc, magicChunk)
-		if _, err := w.w.Write(w.enc[:len(magicChunk)]); err != nil {
-			w.err = err
-			return n, err
-		}
-		w.wroteHeader = true
-	}
-	for len(p) > 0 {
-		var uncompressed []byte
-		if len(p) > maxUncompressedChunkLen {
-			uncompressed, p = p[:maxUncompressedChunkLen], p[maxUncompressedChunkLen:]
-		} else {
-			uncompressed, p = p, nil
-		}
-		checksum := crc(uncompressed)
-
-		// Compress the buffer, discarding the result if the improvement
-		// isn't at least 12.5%.
-		chunkType := uint8(chunkTypeCompressedData)
-		chunkBody := Encode(w.enc, uncompressed)
-		if len(chunkBody) >= len(uncompressed)-len(uncompressed)/8 {
-			chunkType, chunkBody = chunkTypeUncompressedData, uncompressed
-		}
-
-		chunkLen := 4 + len(chunkBody)
-		w.buf[0] = chunkType
-		w.buf[1] = uint8(chunkLen >> 0)
-		w.buf[2] = uint8(chunkLen >> 8)
-		w.buf[3] = uint8(chunkLen >> 16)
-		w.buf[4] = uint8(checksum >> 0)
-		w.buf[5] = uint8(checksum >> 8)
-		w.buf[6] = uint8(checksum >> 16)
-		w.buf[7] = uint8(checksum >> 24)
-		if _, err := w.w.Write(w.buf[:]); err != nil {
-			w.err = err
-			return n, err
-		}
-		if _, err := w.w.Write(chunkBody); err != nil {
-			w.err = err
-			return n, err
-		}
-		n += len(uncompressed)
-	}
-	return n, nil
-}

Godeps/_workspace/src/code.google.com/p/snappy-go/snappy/snappy.go

@@ -5,13 +5,9 @@
 // Package snappy implements the snappy block-based compression format.
 // It aims for very high speeds and reasonable compression.
 //
-// The C++ snappy implementation is at https://github.com/google/snappy
+// The C++ snappy implementation is at http://code.google.com/p/snappy/
 package snappy
 
-import (
-	"hash/crc32"
-)
-
 /*
 Each encoded block begins with the varint-encoded length of the decoded data,
 followed by a sequence of chunks. Chunks begin and end on byte boundaries. The
@@ -40,29 +36,3 @@ const (
 	tagCopy2   = 0x02
 	tagCopy4   = 0x03
 )
-
-const (
-	checksumSize    = 4
-	chunkHeaderSize = 4
-	magicChunk      = "\xff\x06\x00\x00" + magicBody
-	magicBody       = "sNaPpY"
-	// https://github.com/google/snappy/blob/master/framing_format.txt says
-	// that "the uncompressed data in a chunk must be no longer than 65536 bytes".
-	maxUncompressedChunkLen = 65536
-)
-
-const (
-	chunkTypeCompressedData   = 0x00
-	chunkTypeUncompressedData = 0x01
-	chunkTypePadding          = 0xfe
-	chunkTypeStreamIdentifier = 0xff
-)
-
-var crcTable = crc32.MakeTable(crc32.Castagnoli)
-
-// crc implements the checksum specified in section 3 of
-// https://github.com/google/snappy/blob/master/framing_format.txt
-func crc(b []byte) uint32 {
-	c := crc32.Update(0, crcTable, b)
-	return uint32(c>>15|c<<17) + 0xa282ead8
-}

Godeps/_workspace/src/code.google.com/p/snappy-go/snappy/snappy_test.go

@@ -0,0 +1,261 @@
+// Copyright 2011 The Snappy-Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package snappy
+
+import (
+	"bytes"
+	"flag"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"math/rand"
+	"net/http"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+)
+
+var download = flag.Bool("download", false, "If true, download any missing files before running benchmarks")
+
+func roundtrip(b, ebuf, dbuf []byte) error {
+	e, err := Encode(ebuf, b)
+	if err != nil {
+		return fmt.Errorf("encoding error: %v", err)
+	}
+	d, err := Decode(dbuf, e)
+	if err != nil {
+		return fmt.Errorf("decoding error: %v", err)
+	}
+	if !bytes.Equal(b, d) {
+		return fmt.Errorf("roundtrip mismatch:\n\twant %v\n\tgot  %v", b, d)
+	}
+	return nil
+}
+
+func TestEmpty(t *testing.T) {
+	if err := roundtrip(nil, nil, nil); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestSmallCopy(t *testing.T) {
+	for _, ebuf := range [][]byte{nil, make([]byte, 20), make([]byte, 64)} {
+		for _, dbuf := range [][]byte{nil, make([]byte, 20), make([]byte, 64)} {
+			for i := 0; i < 32; i++ {
+				s := "aaaa" + strings.Repeat("b", i) + "aaaabbbb"
+				if err := roundtrip([]byte(s), ebuf, dbuf); err != nil {
+					t.Errorf("len(ebuf)=%d, len(dbuf)=%d, i=%d: %v", len(ebuf), len(dbuf), i, err)
+				}
+			}
+		}
+	}
+}
+
+func TestSmallRand(t *testing.T) {
+	rand.Seed(27354294)
+	for n := 1; n < 20000; n += 23 {
+		b := make([]byte, n)
+		for i, _ := range b {
+			b[i] = uint8(rand.Uint32())
+		}
+		if err := roundtrip(b, nil, nil); err != nil {
+			t.Fatal(err)
+		}
+	}
+}
+
+func TestSmallRegular(t *testing.T) {
+	for n := 1; n < 20000; n += 23 {
+		b := make([]byte, n)
+		for i, _ := range b {
+			b[i] = uint8(i%10 + 'a')
+		}
+		if err := roundtrip(b, nil, nil); err != nil {
+			t.Fatal(err)
+		}
+	}
+}
+
+func benchDecode(b *testing.B, src []byte) {
+	encoded, err := Encode(nil, src)
+	if err != nil {
+		b.Fatal(err)
+	}
+	// Bandwidth is in amount of uncompressed data.
+	b.SetBytes(int64(len(src)))
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		Decode(src, encoded)
+	}
+}
+
+func benchEncode(b *testing.B, src []byte) {
+	// Bandwidth is in amount of uncompressed data.
+	b.SetBytes(int64(len(src)))
+	dst := make([]byte, MaxEncodedLen(len(src)))
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		Encode(dst, src)
+	}
+}
+
+func readFile(b *testing.B, filename string) []byte {
+	src, err := ioutil.ReadFile(filename)
+	if err != nil {
+		b.Fatalf("failed reading %s: %s", filename, err)
+	}
+	if len(src) == 0 {
+		b.Fatalf("%s has zero length", filename)
+	}
+	return src
+}
+
+// expand returns a slice of length n containing repeated copies of src.
+func expand(src []byte, n int) []byte {
+	dst := make([]byte, n)
+	for x := dst; len(x) > 0; {
+		i := copy(x, src)
+		x = x[i:]
+	}
+	return dst
+}
+
+func benchWords(b *testing.B, n int, decode bool) {
+	// Note: the file is OS-language dependent so the resulting values are not
+	// directly comparable for non-US-English OS installations.
+	data := expand(readFile(b, "/usr/share/dict/words"), n)
+	if decode {
+		benchDecode(b, data)
+	} else {
+		benchEncode(b, data)
+	}
+}
+
+func BenchmarkWordsDecode1e3(b *testing.B) { benchWords(b, 1e3, true) }
+func BenchmarkWordsDecode1e4(b *testing.B) { benchWords(b, 1e4, true) }
+func BenchmarkWordsDecode1e5(b *testing.B) { benchWords(b, 1e5, true) }
+func BenchmarkWordsDecode1e6(b *testing.B) { benchWords(b, 1e6, true) }
+func BenchmarkWordsEncode1e3(b *testing.B) { benchWords(b, 1e3, false) }
+func BenchmarkWordsEncode1e4(b *testing.B) { benchWords(b, 1e4, false) }
+func BenchmarkWordsEncode1e5(b *testing.B) { benchWords(b, 1e5, false) }
+func BenchmarkWordsEncode1e6(b *testing.B) { benchWords(b, 1e6, false) }
+
+// testFiles' values are copied directly from
+// https://code.google.com/p/snappy/source/browse/trunk/snappy_unittest.cc.
+// The label field is unused in snappy-go.
+var testFiles = []struct {
+	label    string
+	filename string
+}{
+	{"html", "html"},
+	{"urls", "urls.10K"},
+	{"jpg", "house.jpg"},
+	{"pdf", "mapreduce-osdi-1.pdf"},
+	{"html4", "html_x_4"},
+	{"cp", "cp.html"},
+	{"c", "fields.c"},
+	{"lsp", "grammar.lsp"},
+	{"xls", "kennedy.xls"},
+	{"txt1", "alice29.txt"},
+	{"txt2", "asyoulik.txt"},
+	{"txt3", "lcet10.txt"},
+	{"txt4", "plrabn12.txt"},
+	{"bin", "ptt5"},
+	{"sum", "sum"},
+	{"man", "xargs.1"},
+	{"pb", "geo.protodata"},
+	{"gaviota", "kppkn.gtb"},
+}
+
+// The test data files are present at this canonical URL.
+const baseURL = "https://snappy.googlecode.com/svn/trunk/testdata/"
+
+func downloadTestdata(basename string) (errRet error) {
+	filename := filepath.Join("testdata", basename)
+	f, err := os.Create(filename)
+	if err != nil {
+		return fmt.Errorf("failed to create %s: %s", filename, err)
+	}
+	defer f.Close()
+	defer func() {
+		if errRet != nil {
+			os.Remove(filename)
+		}
+	}()
+	resp, err := http.Get(baseURL + basename)
+	if err != nil {
+		return fmt.Errorf("failed to download %s: %s", baseURL+basename, err)
+	}
+	defer resp.Body.Close()
+	_, err = io.Copy(f, resp.Body)
+	if err != nil {
+		return fmt.Errorf("failed to write %s: %s", filename, err)
+	}
+	return nil
+}
+
+func benchFile(b *testing.B, n int, decode bool) {
+	filename := filepath.Join("testdata", testFiles[n].filename)
+	if stat, err := os.Stat(filename); err != nil || stat.Size() == 0 {
+		if !*download {
+			b.Fatal("test data not found; skipping benchmark without the -download flag")
+		}
+		// Download the official snappy C++ implementation reference test data
+		// files for benchmarking.
+		if err := os.Mkdir("testdata", 0777); err != nil && !os.IsExist(err) {
+			b.Fatalf("failed to create testdata: %s", err)
+		}
+		for _, tf := range testFiles {
+			if err := downloadTestdata(tf.filename); err != nil {
+				b.Fatalf("failed to download testdata: %s", err)
+			}
+		}
+	}
+	data := readFile(b, filename)
+	if decode {
+		benchDecode(b, data)
+	} else {
+		benchEncode(b, data)
+	}
+}
+
+// Naming convention is kept similar to what snappy's C++ implementation uses.
+func Benchmark_UFlat0(b *testing.B)  { benchFile(b, 0, true) }
+func Benchmark_UFlat1(b *testing.B)  { benchFile(b, 1, true) }
+func Benchmark_UFlat2(b *testing.B)  { benchFile(b, 2, true) }
+func Benchmark_UFlat3(b *testing.B)  { benchFile(b, 3, true) }
+func Benchmark_UFlat4(b *testing.B)  { benchFile(b, 4, true) }
+func Benchmark_UFlat5(b *testing.B)  { benchFile(b, 5, true) }
+func Benchmark_UFlat6(b *testing.B)  { benchFile(b, 6, true) }
+func Benchmark_UFlat7(b *testing.B)  { benchFile(b, 7, true) }
+func Benchmark_UFlat8(b *testing.B)  { benchFile(b, 8, true) }
+func Benchmark_UFlat9(b *testing.B)  { benchFile(b, 9, true) }
+func Benchmark_UFlat10(b *testing.B) { benchFile(b, 10, true) }
+func Benchmark_UFlat11(b *testing.B) { benchFile(b, 11, true) }
+func Benchmark_UFlat12(b *testing.B) { benchFile(b, 12, true) }
+func Benchmark_UFlat13(b *testing.B) { benchFile(b, 13, true) }
+func Benchmark_UFlat14(b *testing.B) { benchFile(b, 14, true) }
+func Benchmark_UFlat15(b *testing.B) { benchFile(b, 15, true) }
+func Benchmark_UFlat16(b *testing.B) { benchFile(b, 16, true) }
+func Benchmark_UFlat17(b *testing.B) { benchFile(b, 17, true) }
+func Benchmark_ZFlat0(b *testing.B)  { benchFile(b, 0, false) }
+func Benchmark_ZFlat1(b *testing.B)  { benchFile(b, 1, false) }
+func Benchmark_ZFlat2(b *testing.B)  { benchFile(b, 2, false) }
+func Benchmark_ZFlat3(b *testing.B)  { benchFile(b, 3, false) }
+func Benchmark_ZFlat4(b *testing.B)  { benchFile(b, 4, false) }
+func Benchmark_ZFlat5(b *testing.B)  { benchFile(b, 5, false) }
+func Benchmark_ZFlat6(b *testing.B)  { benchFile(b, 6, false) }
+func Benchmark_ZFlat7(b *testing.B)  { benchFile(b, 7, false) }
+func Benchmark_ZFlat8(b *testing.B)  { benchFile(b, 8, false) }
+func Benchmark_ZFlat9(b *testing.B)  { benchFile(b, 9, false) }
+func Benchmark_ZFlat10(b *testing.B) { benchFile(b, 10, false) }
+func Benchmark_ZFlat11(b *testing.B) { benchFile(b, 11, false) }
+func Benchmark_ZFlat12(b *testing.B) { benchFile(b, 12, false) }
+func Benchmark_ZFlat13(b *testing.B) { benchFile(b, 13, false) }
+func Benchmark_ZFlat14(b *testing.B) { benchFile(b, 14, false) }
+func Benchmark_ZFlat15(b *testing.B) { benchFile(b, 15, false) }
+func Benchmark_ZFlat16(b *testing.B) { benchFile(b, 16, false) }
+func Benchmark_ZFlat17(b *testing.B) { benchFile(b, 17, false) }

Godeps/_workspace/src/github.com/bkaradzic/go-lz4/.travis.yml

@@ -4,6 +4,4 @@ go:
   - 1.1
   - 1.2
   - 1.3
-  - 1.4
-  - 1.5
   - tip

Godeps/_workspace/src/github.com/bkaradzic/go-lz4/README.md

@@ -4,7 +4,7 @@ go-lz4
 go-lz4 is port of LZ4 lossless compression algorithm to Go. The original C code
 is located at:
 
-https://github.com/Cyan4973/lz4
+https://code.google.com/p/lz4/
 
 Status
 ------

Godeps/_workspace/src/github.com/bkaradzic/go-lz4/fuzz.go

@@ -1,23 +0,0 @@
-// +build gofuzz
-
-package lz4
-
-import "encoding/binary"
-
-func Fuzz(data []byte) int {
-
-	if len(data) < 4 {
-		return 0
-	}
-
-	ln := binary.LittleEndian.Uint32(data)
-	if ln > (1 << 21) {
-		return 0
-	}
-
-	if _, err := Decode(nil, data); err != nil {
-		return 0
-	}
-
-	return 1
-}

Godeps/_workspace/src/github.com/bkaradzic/go-lz4/lz4_test.go

@@ -0,0 +1,63 @@
+package lz4
+
+import (
+	"bytes"
+	"io/ioutil"
+	"testing"
+)
+
+var testfile, _ = ioutil.ReadFile("testdata/pg1661.txt")
+
+func roundtrip(t *testing.T, input []byte) {
+
+	dst, err := Encode(nil, input)
+	if err != nil {
+		t.Errorf("got error during compression: %s", err)
+	}
+
+	output, err := Decode(nil, dst)
+
+	if err != nil {
+		t.Errorf("got error during decompress: %s", err)
+	}
+
+	if !bytes.Equal(output, input) {
+		t.Errorf("roundtrip failed")
+	}
+}
+
+func TestEmpty(t *testing.T) {
+	roundtrip(t, nil)
+}
+
+func TestLengths(t *testing.T) {
+
+	for i := 0; i < 1024; i++ {
+		roundtrip(t, testfile[:i])
+	}
+
+	for i := 1024; i < 4096; i += 23 {
+		roundtrip(t, testfile[:i])
+	}
+}
+
+func TestWords(t *testing.T) {
+	roundtrip(t, testfile)
+}
+
+func BenchmarkLZ4Encode(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		Encode(nil, testfile)
+	}
+}
+
+func BenchmarkLZ4Decode(b *testing.B) {
+
+	var compressed, _ = Encode(nil, testfile)
+
+	b.ResetTimer()
+
+	for i := 0; i < b.N; i++ {
+		Decode(nil, compressed)
+	}
+}

Godeps/_workspace/src/github.com/bkaradzic/go-lz4/reader.go

@@ -1,199 +1,194 @@
-/*
- * Copyright 2011-2012 Branimir Karadzic. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *
- *    1. Redistributions of source code must retain the above copyright notice, this
- *       list of conditions and the following disclaimer.
- *
- *    2. Redistributions in binary form must reproduce the above copyright notice,
- *       this list of conditions and the following disclaimer in the documentation
- *       and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY COPYRIGHT HOLDER ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
- * SHALL COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
- * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
- * THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-package lz4
-
-import (
-	"encoding/binary"
-	"errors"
-	"io"
-)
-
-var (
-	// ErrCorrupt indicates the input was corrupt
-	ErrCorrupt = errors.New("corrupt input")
-)
-
-const (
-	mlBits  = 4
-	mlMask  = (1 << mlBits) - 1
-	runBits = 8 - mlBits
-	runMask = (1 << runBits) - 1
-)
-
-type decoder struct {
-	src  []byte
-	dst  []byte
-	spos uint32
-	dpos uint32
-	ref  uint32
-}
-
-func (d *decoder) readByte() (uint8, error) {
-	if int(d.spos) == len(d.src) {
-		return 0, io.EOF
-	}
-	b := d.src[d.spos]
-	d.spos++
-	return b, nil
-}
-
-func (d *decoder) getLen() (uint32, error) {
-
-	length := uint32(0)
-	ln, err := d.readByte()
-	if err != nil {
-		return 0, ErrCorrupt
-	}
-	for ln == 255 {
-		length += 255
-		ln, err = d.readByte()
-		if err != nil {
-			return 0, ErrCorrupt
-		}
-	}
-	length += uint32(ln)
-
-	return length, nil
-}
-
-func (d *decoder) cp(length, decr uint32) {
-
-	if int(d.ref+length) < int(d.dpos) {
-		copy(d.dst[d.dpos:], d.dst[d.ref:d.ref+length])
-	} else {
-		for ii := uint32(0); ii < length; ii++ {
-			d.dst[d.dpos+ii] = d.dst[d.ref+ii]
-		}
-	}
-	d.dpos += length
-	d.ref += length - decr
-}
-
-func (d *decoder) finish(err error) error {
-	if err == io.EOF {
-		return nil
-	}
-
-	return err
-}
-
-// Decode returns the decoded form of src.  The returned slice may be a
-// subslice of dst if it was large enough to hold the entire decoded block.
-func Decode(dst, src []byte) ([]byte, error) {
-
-	if len(src) < 4 {
-		return nil, ErrCorrupt
-	}
-
-	uncompressedLen := binary.LittleEndian.Uint32(src)
-
-	if uncompressedLen == 0 {
-		return nil, nil
-	}
-
-	if uncompressedLen > MaxInputSize {
-		return nil, ErrTooLarge
-	}
-
-	if dst == nil || len(dst) < int(uncompressedLen) {
-		dst = make([]byte, uncompressedLen)
-	}
-
-	d := decoder{src: src, dst: dst[:uncompressedLen], spos: 4}
-
-	decr := []uint32{0, 3, 2, 3}
-
-	for {
-		code, err := d.readByte()
-		if err != nil {
-			return d.dst, d.finish(err)
-		}
-
-		length := uint32(code >> mlBits)
-		if length == runMask {
-			ln, err := d.getLen()
-			if err != nil {
-				return nil, ErrCorrupt
-			}
-			length += ln
-		}
-
-		if int(d.spos+length) > len(d.src) || int(d.dpos+length) > len(d.dst) {
-			return nil, ErrCorrupt
-		}
-
-		for ii := uint32(0); ii < length; ii++ {
-			d.dst[d.dpos+ii] = d.src[d.spos+ii]
-		}
-
-		d.spos += length
-		d.dpos += length
-
-		if int(d.spos) == len(d.src) {
-			return d.dst, nil
-		}
-
-		if int(d.spos+2) >= len(d.src) {
-			return nil, ErrCorrupt
-		}
-
-		back := uint32(d.src[d.spos]) | uint32(d.src[d.spos+1])<<8
-
-		if back > d.dpos {
-			return nil, ErrCorrupt
-		}
-
-		d.spos += 2
-		d.ref = d.dpos - back
-
-		length = uint32(code & mlMask)
-		if length == mlMask {
-			ln, err := d.getLen()
-			if err != nil {
-				return nil, ErrCorrupt
-			}
-			length += ln
-		}
-
-		literal := d.dpos - d.ref
-
-		if literal < 4 {
-			if int(d.dpos+4) > len(d.dst) {
-				return nil, ErrCorrupt
-			}
-
-			d.cp(4, decr[literal])
-		} else {
-			length += 4
-		}
-
-		if d.dpos+length > uncompressedLen {
-			return nil, ErrCorrupt
-		}
-
-		d.cp(length, 0)
-	}
-}
+/*
+ * Copyright 2011-2012 Branimir Karadzic. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this
+ *       list of conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice,
+ *       this list of conditions and the following disclaimer in the documentation
+ *       and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY COPYRIGHT HOLDER ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package lz4
+
+import (
+	"encoding/binary"
+	"errors"
+	"io"
+)
+
+var (
+	// ErrCorrupt indicates the input was corrupt
+	ErrCorrupt = errors.New("corrupt input")
+)
+
+const (
+	mlBits  = 4
+	mlMask  = (1 << mlBits) - 1
+	runBits = 8 - mlBits
+	runMask = (1 << runBits) - 1
+)
+
+type decoder struct {
+	src  []byte
+	dst  []byte
+	spos uint32
+	dpos uint32
+	ref  uint32
+}
+
+func (d *decoder) readByte() (uint8, error) {
+	if int(d.spos) == len(d.src) {
+		return 0, io.EOF
+	}
+	b := d.src[d.spos]
+	d.spos++
+	return b, nil
+}
+
+func (d *decoder) getLen() (uint32, error) {
+
+	length := uint32(0)
+	ln, err := d.readByte()
+	if err != nil {
+		return 0, ErrCorrupt
+	}
+	for ln == 255 {
+		length += 255
+		ln, err = d.readByte()
+		if err != nil {
+			return 0, ErrCorrupt
+		}
+	}
+	length += uint32(ln)
+
+	return length, nil
+}
+
+func (d *decoder) cp(length, decr uint32) {
+
+	if int(d.ref+length) < int(d.dpos) {
+		copy(d.dst[d.dpos:], d.dst[d.ref:d.ref+length])
+	} else {
+		for ii := uint32(0); ii < length; ii++ {
+			d.dst[d.dpos+ii] = d.dst[d.ref+ii]
+		}
+	}
+	d.dpos += length
+	d.ref += length - decr
+}
+
+func (d *decoder) finish(err error) error {
+	if err == io.EOF {
+		return nil
+	}
+
+	return err
+}
+
+// Decode returns the decoded form of src.  The returned slice may be a
+// subslice of dst if it was large enough to hold the entire decoded block.
+func Decode(dst, src []byte) ([]byte, error) {
+
+	if len(src) < 4 {
+		return nil, ErrCorrupt
+	}
+
+	uncompressedLen := binary.LittleEndian.Uint32(src)
+
+	if uncompressedLen == 0 {
+		return nil, nil
+	}
+
+	if uncompressedLen > MaxInputSize {
+		return nil, ErrTooLarge
+	}
+
+	if dst == nil || len(dst) < int(uncompressedLen) {
+		dst = make([]byte, uncompressedLen)
+	}
+
+	d := decoder{src: src, dst: dst[:uncompressedLen], spos: 4}
+
+	decr := []uint32{0, 3, 2, 3}
+
+	for {
+		code, err := d.readByte()
+		if err != nil {
+			return d.dst, d.finish(err)
+		}
+
+		length := uint32(code >> mlBits)
+		if length == runMask {
+			ln, err := d.getLen()
+			if err != nil {
+				return nil, ErrCorrupt
+			}
+			length += ln
+		}
+
+		if int(d.spos+length) > len(d.src) {
+			return nil, ErrCorrupt
+		}
+
+		for ii := uint32(0); ii < length; ii++ {
+			d.dst[d.dpos+ii] = d.src[d.spos+ii]
+		}
+
+		d.spos += length
+		d.dpos += length
+
+		if int(d.spos) == len(d.src) {
+			return d.dst, nil
+		}
+
+		if int(d.spos+2) >= len(d.src) {
+			return nil, ErrCorrupt
+		}
+
+		back := uint32(d.src[d.spos]) | uint32(d.src[d.spos+1])<<8
+
+		if back > d.dpos {
+			return nil, ErrCorrupt
+		}
+
+		d.spos += 2
+		d.ref = d.dpos - back
+
+		length = uint32(code & mlMask)
+		if length == mlMask {
+			ln, err := d.getLen()
+			if err != nil {
+				return nil, ErrCorrupt
+			}
+			length += ln
+		}
+
+		literal := d.dpos - d.ref
+		if literal < 4 {
+			d.cp(4, decr[literal])
+		} else {
+			length += 4
+		}
+
+		if d.dpos+length > uncompressedLen {
+			return nil, ErrCorrupt
+		}
+
+		d.cp(length, 0)
+	}
+}

Godeps/_workspace/src/github.com/bkaradzic/go-lz4/writer.go

@@ -1,190 +1,188 @@
-/*
- * Copyright 2011-2012 Branimir Karadzic. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *
- *    1. Redistributions of source code must retain the above copyright notice, this
- *       list of conditions and the following disclaimer.
- *
- *    2. Redistributions in binary form must reproduce the above copyright notice,
- *       this list of conditions and the following disclaimer in the documentation
- *       and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY COPYRIGHT HOLDER ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
- * SHALL COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
- * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
- * THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-package lz4
-
-import (
-	"encoding/binary"
-	"errors"
-)
-
-const (
-	minMatch              = 4
-	hashLog               = 17
-	hashTableSize         = 1 << hashLog
-	hashShift             = (minMatch * 8) - hashLog
-	incompressible uint32 = 128
-	uninitHash            = 0x88888888
-
-	// MaxInputSize is the largest buffer than can be compressed in a single block
-	MaxInputSize = 0x7E000000
-)
-
-var (
-	// ErrTooLarge indicates the input buffer was too large
-	ErrTooLarge = errors.New("input too large")
-)
-
-type encoder struct {
-	src       []byte
-	dst       []byte
-	hashTable []uint32
-	pos       uint32
-	anchor    uint32
-	dpos      uint32
-}
-
-// CompressBound returns the maximum length of a lz4 block, given it's uncompressed length
-func CompressBound(isize int) int {
-	if isize > MaxInputSize {
-		return 0
-	}
-	return isize + ((isize) / 255) + 16 + 4
-}
-
-func (e *encoder) writeLiterals(length, mlLen, pos uint32) {
-
-	ln := length
-
-	var code byte
-	if ln > runMask-1 {
-		code = runMask
-	} else {
-		code = byte(ln)
-	}
-
-	if mlLen > mlMask-1 {
-		e.dst[e.dpos] = (code << mlBits) + byte(mlMask)
-	} else {
-		e.dst[e.dpos] = (code << mlBits) + byte(mlLen)
-	}
-	e.dpos++
-
-	if code == runMask {
-		ln -= runMask
-		for ; ln > 254; ln -= 255 {
-			e.dst[e.dpos] = 255
-			e.dpos++
-		}
-
-		e.dst[e.dpos] = byte(ln)
-		e.dpos++
-	}
-
-	for ii := uint32(0); ii < length; ii++ {
-		e.dst[e.dpos+ii] = e.src[pos+ii]
-	}
-
-	e.dpos += length
-}
-
-// Encode returns the encoded form of src.  The returned array may be a
-// sub-slice of dst if it was large enough to hold the entire output.
-func Encode(dst, src []byte) ([]byte, error) {
-
-	if len(src) >= MaxInputSize {
-		return nil, ErrTooLarge
-	}
-
-	if n := CompressBound(len(src)); len(dst) < n {
-		dst = make([]byte, n)
-	}
-
-	e := encoder{src: src, dst: dst, hashTable: make([]uint32, hashTableSize)}
-
-	binary.LittleEndian.PutUint32(dst, uint32(len(src)))
-	e.dpos = 4
-
-	var (
-		step  uint32 = 1
-		limit        = incompressible
-	)
-
-	for {
-		if int(e.pos)+12 >= len(e.src) {
-			e.writeLiterals(uint32(len(e.src))-e.anchor, 0, e.anchor)
-			return e.dst[:e.dpos], nil
-		}
-
-		sequence := uint32(e.src[e.pos+3])<<24 | uint32(e.src[e.pos+2])<<16 | uint32(e.src[e.pos+1])<<8 | uint32(e.src[e.pos+0])
-
-		hash := (sequence * 2654435761) >> hashShift
-		ref := e.hashTable[hash] + uninitHash
-		e.hashTable[hash] = e.pos - uninitHash
-
-		if ((e.pos-ref)>>16) != 0 || uint32(e.src[ref+3])<<24|uint32(e.src[ref+2])<<16|uint32(e.src[ref+1])<<8|uint32(e.src[ref+0]) != sequence {
-			if e.pos-e.anchor > limit {
-				limit <<= 1
-				step += 1 + (step >> 2)
-			}
-			e.pos += step
-			continue
-		}
-
-		if step > 1 {
-			e.hashTable[hash] = ref - uninitHash
-			e.pos -= step - 1
-			step = 1
-			continue
-		}
-		limit = incompressible
-
-		ln := e.pos - e.anchor
-		back := e.pos - ref
-
-		anchor := e.anchor
-
-		e.pos += minMatch
-		ref += minMatch
-		e.anchor = e.pos
-
-		for int(e.pos) < len(e.src)-5 && e.src[e.pos] == e.src[ref] {
-			e.pos++
-			ref++
-		}
-
-		mlLen := e.pos - e.anchor
-
-		e.writeLiterals(ln, mlLen, anchor)
-		e.dst[e.dpos] = uint8(back)
-		e.dst[e.dpos+1] = uint8(back >> 8)
-		e.dpos += 2
-
-		if mlLen > mlMask-1 {
-			mlLen -= mlMask
-			for mlLen > 254 {
-				mlLen -= 255
-
-				e.dst[e.dpos] = 255
-				e.dpos++
-			}
-
-			e.dst[e.dpos] = byte(mlLen)
-			e.dpos++
-		}
-
-		e.anchor = e.pos
-	}
-}
+/*
+ * Copyright 2011-2012 Branimir Karadzic. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this
+ *       list of conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice,
+ *       this list of conditions and the following disclaimer in the documentation
+ *       and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY COPYRIGHT HOLDER ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package lz4
+
+import "encoding/binary"
+import "errors"
+
+const (
+	minMatch              = 4
+	hashLog               = 17
+	hashTableSize         = 1 << hashLog
+	hashShift             = (minMatch * 8) - hashLog
+	incompressible uint32 = 128
+	uninitHash            = 0x88888888
+
+	// MaxInputSize is the largest buffer than can be compressed in a single block
+	MaxInputSize = 0x7E000000
+)
+
+var (
+	// ErrTooLarge indicates the input buffer was too large
+	ErrTooLarge = errors.New("input too large")
+)
+
+type encoder struct {
+	src       []byte
+	dst       []byte
+	hashTable []uint32
+	pos       uint32
+	anchor    uint32
+	dpos      uint32
+}
+
+// CompressBound returns the maximum length of a lz4 block, given it's uncompressed length
+func CompressBound(isize int) int {
+	if isize > MaxInputSize {
+		return 0
+	}
+	return isize + ((isize) / 255) + 16 + 4
+}
+
+func (e *encoder) writeLiterals(length, mlLen, pos uint32) {
+
+	ln := length
+
+	var code byte
+	if ln > runMask-1 {
+		code = runMask
+	} else {
+		code = byte(ln)
+	}
+
+	if mlLen > mlMask-1 {
+		e.dst[e.dpos] = (code << mlBits) + byte(mlMask)
+	} else {
+		e.dst[e.dpos] = (code << mlBits) + byte(mlLen)
+	}
+	e.dpos++
+
+	if code == runMask {
+		ln -= runMask
+		for ; ln > 254; ln -= 255 {
+			e.dst[e.dpos] = 255
+			e.dpos++
+		}
+
+		e.dst[e.dpos] = byte(ln)
+		e.dpos++
+	}
+
+	for ii := uint32(0); ii < length; ii++ {
+		e.dst[e.dpos+ii] = e.src[pos+ii]
+	}
+
+	e.dpos += length
+}
+
+// Encode returns the encoded form of src.  The returned array may be a
+// sub-slice of dst if it was large enough to hold the entire output.
+func Encode(dst, src []byte) ([]byte, error) {
+
+	if len(src) >= MaxInputSize {
+		return nil, ErrTooLarge
+	}
+
+	if n := CompressBound(len(src)); len(dst) < n {
+		dst = make([]byte, n)
+	}
+
+	e := encoder{src: src, dst: dst, hashTable: make([]uint32, hashTableSize)}
+
+	binary.LittleEndian.PutUint32(dst, uint32(len(src)))
+	e.dpos = 4
+
+	var (
+		step  uint32 = 1
+		limit        = incompressible
+	)
+
+	for {
+		if int(e.pos)+12 >= len(e.src) {
+			e.writeLiterals(uint32(len(e.src))-e.anchor, 0, e.anchor)
+			return e.dst[:e.dpos], nil
+		}
+
+		sequence := uint32(e.src[e.pos+3])<<24 | uint32(e.src[e.pos+2])<<16 | uint32(e.src[e.pos+1])<<8 | uint32(e.src[e.pos+0])
+
+		hash := (sequence * 2654435761) >> hashShift
+		ref := e.hashTable[hash] + uninitHash
+		e.hashTable[hash] = e.pos - uninitHash
+
+		if ((e.pos-ref)>>16) != 0 || uint32(e.src[ref+3])<<24|uint32(e.src[ref+2])<<16|uint32(e.src[ref+1])<<8|uint32(e.src[ref+0]) != sequence {
+			if e.pos-e.anchor > limit {
+				limit <<= 1
+				step += 1 + (step >> 2)
+			}
+			e.pos += step
+			continue
+		}
+
+		if step > 1 {
+			e.hashTable[hash] = ref - uninitHash
+			e.pos -= step - 1
+			step = 1
+			continue
+		}
+		limit = incompressible
+
+		ln := e.pos - e.anchor
+		back := e.pos - ref
+
+		anchor := e.anchor
+
+		e.pos += minMatch
+		ref += minMatch
+		e.anchor = e.pos
+
+		for int(e.pos) < len(e.src)-5 && e.src[e.pos] == e.src[ref] {
+			e.pos++
+			ref++
+		}
+
+		mlLen := e.pos - e.anchor
+
+		e.writeLiterals(ln, mlLen, anchor)
+		e.dst[e.dpos] = uint8(back)
+		e.dst[e.dpos+1] = uint8(back >> 8)
+		e.dpos += 2
+
+		if mlLen > mlMask-1 {
+			mlLen -= mlMask
+			for mlLen > 254 {
+				mlLen -= 255
+
+				e.dst[e.dpos] = 255
+				e.dpos++
+			}
+
+			e.dst[e.dpos] = byte(mlLen)
+			e.dpos++
+		}
+
+		e.anchor = e.pos
+	}
+}

Godeps/_workspace/src/github.com/calmh/du/LICENSE

@@ -1,24 +0,0 @@
-This is free and unencumbered software released into the public domain.
-
-Anyone is free to copy, modify, publish, use, compile, sell, or
-distribute this software, either in source code form or as a compiled
-binary, for any purpose, commercial or non-commercial, and by any
-means.
-
-In jurisdictions that recognize copyright laws, the author or authors
-of this software dedicate any and all copyright interest in the
-software to the public domain. We make this dedication for the benefit
-of the public at large and to the detriment of our heirs and
-successors. We intend this dedication to be an overt act of
-relinquishment in perpetuity of all present and future rights to this
-software under copyright law.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
-OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
-ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
-OTHER DEALINGS IN THE SOFTWARE.
-
-For more information, please refer to <http://unlicense.org>

Godeps/_workspace/src/github.com/calmh/du/README.md

@@ -1,14 +0,0 @@
-du
-==
-
-Get total and available disk space on a given volume.
-
-Documentation
--------------
-
-http://godoc.org/github.com/calmh/du
-
-License
--------
-
-Public Domain

Godeps/_workspace/src/github.com/calmh/du/cmd/du/main.go

@@ -1,21 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"log"
-	"os"
-
-	"github.com/calmh/du"
-)
-
-var KB = int64(1024)
-
-func main() {
-	usage, err := du.Get(os.Args[1])
-	if err != nil {
-		log.Fatal(err)
-	}
-	fmt.Println("Free:", usage.FreeBytes/(KB*KB), "MiB")
-	fmt.Println("Available:", usage.AvailBytes/(KB*KB), "MiB")
-	fmt.Println("Size:", usage.TotalBytes/(KB*KB), "MiB")
-}

Godeps/_workspace/src/github.com/calmh/du/diskusage.go

@@ -1,8 +0,0 @@
-package du
-
-// Usage holds information about total and available storage on a volume.
-type Usage struct {
-	TotalBytes int64 // Size of volume
-	FreeBytes  int64 // Unused size
-	AvailBytes int64 // Available to a non-privileged user
-}

Godeps/_workspace/src/github.com/calmh/du/diskusage_posix.go

@@ -1,24 +0,0 @@
-// +build !windows,!netbsd,!openbsd,!solaris
-
-package du
-
-import (
-	"path/filepath"
-	"syscall"
-)
-
-// Get returns the Usage of a given path, or an error if usage data is
-// unavailable.
-func Get(path string) (Usage, error) {
-	var stat syscall.Statfs_t
-	err := syscall.Statfs(filepath.Clean(path), &stat)
-	if err != nil {
-		return Usage{}, err
-	}
-	u := Usage{
-		FreeBytes:  int64(stat.Bfree) * int64(stat.Bsize),
-		TotalBytes: int64(stat.Blocks) * int64(stat.Bsize),
-		AvailBytes: int64(stat.Bavail) * int64(stat.Bsize),
-	}
-	return u, nil
-}

Godeps/_workspace/src/github.com/calmh/du/diskusage_unsupported.go

@@ -1,13 +0,0 @@
-// +build netbsd openbsd solaris
-
-package du
-
-import "errors"
-
-var ErrUnsupported = errors.New("unsupported platform")
-
-// Get returns the Usage of a given path, or an error if usage data is
-// unavailable.
-func Get(path string) (Usage, error) {
-	return Usage{}, ErrUnsupported
-}

Godeps/_workspace/src/github.com/calmh/du/diskusage_windows.go

@@ -1,27 +0,0 @@
-package du
-
-import (
-	"syscall"
-	"unsafe"
-)
-
-// Get returns the Usage of a given path, or an error if usage data is
-// unavailable.
-func Get(path string) (Usage, error) {
-	h := syscall.MustLoadDLL("kernel32.dll")
-	c := h.MustFindProc("GetDiskFreeSpaceExW")
-
-	var u Usage
-
-	ret, _, err := c.Call(
-		uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(path))),
-		uintptr(unsafe.Pointer(&u.FreeBytes)),
-		uintptr(unsafe.Pointer(&u.TotalBytes)),
-		uintptr(unsafe.Pointer(&u.AvailBytes)))
-
-	if ret == 0 {
-		return u, err
-	}
-
-	return u, nil
-}

Godeps/_workspace/src/github.com/calmh/luhn/LICENSE

@@ -1,19 +0,0 @@
-Copyright (C) 2014 Jakob Borg
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of
-this software and associated documentation files (the "Software"), to deal in
-the Software without restriction, including without limitation the rights to
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
-of the Software, and to permit persons to whom the Software is furnished to do
-so, subject to the following conditions:
-
-- The above copyright notice and this permission notice shall be included in
-  all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.

Godeps/_workspace/src/github.com/calmh/xdr/.travis.yml

@@ -4,7 +4,7 @@ go:
 
 install:
 - export PATH=$PATH:$HOME/gopath/bin
-- go get golang.org/x/tools/cover
+- go get code.google.com/p/go.tools/cmd/cover
 - go get github.com/mattn/goveralls
 
 script:

Godeps/_workspace/src/github.com/calmh/xdr/README.md

@@ -1,7 +1,7 @@
 xdr
 ===
 
-[![Build Status](https://img.shields.io/circleci/project/calmh/xdr.svg?style=flat-square)](https://circleci.com/gh/calmh/xdr)
+[![Build Status](https://img.shields.io/travis/calmh/xdr.svg?style=flat)](https://travis-ci.org/calmh/xdr)
 [![Coverage Status](https://img.shields.io/coveralls/calmh/xdr.svg?style=flat)](https://coveralls.io/r/calmh/xdr?branch=master)
 [![API Documentation](http://img.shields.io/badge/api-Godoc-blue.svg?style=flat)](http://godoc.org/github.com/calmh/xdr)
 [![MIT License](http://img.shields.io/badge/license-MIT-blue.svg?style=flat)](http://opensource.org/licenses/MIT)

Godeps/_workspace/src/github.com/calmh/xdr/bench_test.go

@@ -0,0 +1,113 @@
+// Copyright (C) 2014 Jakob Borg. All rights reserved. Use of this source code
+// is governed by an MIT-style license that can be found in the LICENSE file.
+
+package xdr_test
+
+import (
+	"io"
+	"io/ioutil"
+	"testing"
+
+	"github.com/calmh/xdr"
+)
+
+type XDRBenchStruct struct {
+	I1  uint64
+	I2  uint32
+	I3  uint16
+	I4  uint8
+	Bs0 []byte // max:128
+	Bs1 []byte
+	S0  string // max:128
+	S1  string
+}
+
+var res []byte // no to be optimized away
+var s = XDRBenchStruct{
+	I1:  42,
+	I2:  43,
+	I3:  44,
+	I4:  45,
+	Bs0: []byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18},
+	Bs1: []byte{11, 12, 13, 14, 15, 16, 17, 18, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10},
+	S0:  "Hello World! String one.",
+	S1:  "Hello World! String two.",
+}
+var e = s.MarshalXDR()
+
+func BenchmarkThisMarshal(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		res = s.MarshalXDR()
+	}
+}
+
+func BenchmarkThisUnmarshal(b *testing.B) {
+	var t XDRBenchStruct
+	for i := 0; i < b.N; i++ {
+		err := t.UnmarshalXDR(e)
+		if err != nil {
+			b.Fatal(err)
+		}
+	}
+}
+
+func BenchmarkThisEncode(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		_, err := s.EncodeXDR(ioutil.Discard)
+		if err != nil {
+			b.Fatal(err)
+		}
+	}
+}
+
+func BenchmarkThisEncoder(b *testing.B) {
+	w := xdr.NewWriter(ioutil.Discard)
+	for i := 0; i < b.N; i++ {
+		_, err := s.encodeXDR(w)
+		if err != nil {
+			b.Fatal(err)
+		}
+	}
+}
+
+type repeatReader struct {
+	data []byte
+}
+
+func (r *repeatReader) Read(bs []byte) (n int, err error) {
+	if len(bs) > len(r.data) {
+		err = io.EOF
+	}
+	n = copy(bs, r.data)
+	r.data = r.data[n:]
+	return n, err
+}
+
+func (r *repeatReader) Reset(bs []byte) {
+	r.data = bs
+}
+
+func BenchmarkThisDecode(b *testing.B) {
+	rr := &repeatReader{e}
+	var t XDRBenchStruct
+	for i := 0; i < b.N; i++ {
+		err := t.DecodeXDR(rr)
+		if err != nil {
+			b.Fatal(err)
+		}
+		rr.Reset(e)
+	}
+}
+
+func BenchmarkThisDecoder(b *testing.B) {
+	rr := &repeatReader{e}
+	r := xdr.NewReader(rr)
+	var t XDRBenchStruct
+	for i := 0; i < b.N; i++ {
+		err := t.decodeXDR(r)
+		if err != nil {
+			b.Fatal(err)
+		}
+		rr.Reset(e)
+	}
+}

Godeps/_workspace/src/github.com/calmh/xdr/bench_xdr_test.go

@@ -0,0 +1,183 @@
+// ************************************************************
+// This file is automatically generated by genxdr. Do not edit.
+// ************************************************************
+
+package xdr_test
+
+import (
+	"bytes"
+	"io"
+
+	"github.com/calmh/xdr"
+)
+
+/*
+
+XDRBenchStruct Structure:
+
+ 0                   1                   2                   3
+ 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                                                               |
++                         I1 (64 bits)                          +
+|                                                               |
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                              I2                               |
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|            0x0000             |              I3               |
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                             uint8                             |
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                         Length of Bs0                         |
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+/                                                               /
+\                     Bs0 (variable length)                     \
+/                                                               /
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                         Length of Bs1                         |
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+/                                                               /
+\                     Bs1 (variable length)                     \
+/                                                               /
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                         Length of S0                          |
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+/                                                               /
+\                     S0 (variable length)                      \
+/                                                               /
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                         Length of S1                          |
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+/                                                               /
+\                     S1 (variable length)                      \
+/                                                               /
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+
+
+struct XDRBenchStruct {
+	unsigned hyper I1;
+	unsigned int I2;
+	unsigned int I3;
+	uint8 I4;
+	opaque Bs0<128>;
+	opaque Bs1<>;
+	string S0<128>;
+	string S1<>;
+}
+
+*/
+
+func (o XDRBenchStruct) EncodeXDR(w io.Writer) (int, error) {
+	var xw = xdr.NewWriter(w)
+	return o.encodeXDR(xw)
+}
+
+func (o XDRBenchStruct) MarshalXDR() []byte {
+	return o.AppendXDR(make([]byte, 0, 128))
+}
+
+func (o XDRBenchStruct) AppendXDR(bs []byte) []byte {
+	var aw = xdr.AppendWriter(bs)
+	var xw = xdr.NewWriter(&aw)
+	o.encodeXDR(xw)
+	return []byte(aw)
+}
+
+func (o XDRBenchStruct) encodeXDR(xw *xdr.Writer) (int, error) {
+	xw.WriteUint64(o.I1)
+	xw.WriteUint32(o.I2)
+	xw.WriteUint16(o.I3)
+	xw.WriteUint8(o.I4)
+	if len(o.Bs0) > 128 {
+		return xw.Tot(), xdr.ErrElementSizeExceeded
+	}
+	xw.WriteBytes(o.Bs0)
+	xw.WriteBytes(o.Bs1)
+	if len(o.S0) > 128 {
+		return xw.Tot(), xdr.ErrElementSizeExceeded
+	}
+	xw.WriteString(o.S0)
+	xw.WriteString(o.S1)
+	return xw.Tot(), xw.Error()
+}
+
+func (o *XDRBenchStruct) DecodeXDR(r io.Reader) error {
+	xr := xdr.NewReader(r)
+	return o.decodeXDR(xr)
+}
+
+func (o *XDRBenchStruct) UnmarshalXDR(bs []byte) error {
+	var br = bytes.NewReader(bs)
+	var xr = xdr.NewReader(br)
+	return o.decodeXDR(xr)
+}
+
+func (o *XDRBenchStruct) decodeXDR(xr *xdr.Reader) error {
+	o.I1 = xr.ReadUint64()
+	o.I2 = xr.ReadUint32()
+	o.I3 = xr.ReadUint16()
+	o.I4 = xr.ReadUint8()
+	o.Bs0 = xr.ReadBytesMax(128)
+	o.Bs1 = xr.ReadBytes()
+	o.S0 = xr.ReadStringMax(128)
+	o.S1 = xr.ReadString()
+	return xr.Error()
+}
+
+/*
+
+repeatReader Structure:
+
+ 0                   1                   2                   3
+ 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                        Length of data                         |
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+/                                                               /
+\                    data (variable length)                     \
+/                                                               /
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+
+
+struct repeatReader {
+	opaque data<>;
+}
+
+*/
+
+func (o repeatReader) EncodeXDR(w io.Writer) (int, error) {
+	var xw = xdr.NewWriter(w)
+	return o.encodeXDR(xw)
+}
+
+func (o repeatReader) MarshalXDR() []byte {
+	return o.AppendXDR(make([]byte, 0, 128))
+}
+
+func (o repeatReader) AppendXDR(bs []byte) []byte {
+	var aw = xdr.AppendWriter(bs)
+	var xw = xdr.NewWriter(&aw)
+	o.encodeXDR(xw)
+	return []byte(aw)
+}
+
+func (o repeatReader) encodeXDR(xw *xdr.Writer) (int, error) {
+	xw.WriteBytes(o.data)
+	return xw.Tot(), xw.Error()
+}
+
+func (o *repeatReader) DecodeXDR(r io.Reader) error {
+	xr := xdr.NewReader(r)
+	return o.decodeXDR(xr)
+}
+
+func (o *repeatReader) UnmarshalXDR(bs []byte) error {
+	var br = bytes.NewReader(bs)
+	var xr = xdr.NewReader(br)
+	return o.decodeXDR(xr)
+}
+
+func (o *repeatReader) decodeXDR(xr *xdr.Reader) error {
+	o.data = xr.ReadBytes()
+	return xr.Error()
+}

Godeps/_workspace/src/github.com/calmh/xdr/circle.yml

@@ -1,3 +0,0 @@
-dependencies:
-  post:
-      - ./generate.sh

Godeps/_workspace/src/github.com/calmh/xdr/cmd/genxdr/main.go

@@ -11,8 +11,6 @@ import (
 	"go/format"
 	"go/parser"
 	"go/token"
-	"io"
-	"log"
 	"os"
 	"regexp"
 	"strconv"
@@ -28,7 +26,6 @@ type fieldInfo struct {
 	Encoder   string // the encoder name, i.e. "Uint64" for Read/WriteUint64
 	Convert   string // what to convert to when encoding, i.e. "uint64"
 	Max       int    // max size for slices and strings
-	Submax    int    // max size for strings inside slices
 }
 
 type structInfo struct {
@@ -53,50 +50,42 @@ import (
 var encodeTpl = template.Must(template.New("encoder").Parse(`
 func (o {{.TypeName}}) EncodeXDR(w io.Writer) (int, error) {
 	var xw = xdr.NewWriter(w)
-	return o.EncodeXDRInto(xw)
+	return o.encodeXDR(xw)
 }//+n
 
-func (o {{.TypeName}}) MarshalXDR() ([]byte, error) {
+func (o {{.TypeName}}) MarshalXDR() []byte {
 	return o.AppendXDR(make([]byte, 0, 128))
 }//+n
 
-func (o {{.TypeName}}) MustMarshalXDR() []byte {
-	bs, err := o.MarshalXDR()
-	if err != nil {
-		panic(err)
-	}
-	return bs
-}//+n
-
-func (o {{.TypeName}}) AppendXDR(bs []byte) ([]byte, error) {
+func (o {{.TypeName}}) AppendXDR(bs []byte) []byte {
 	var aw = xdr.AppendWriter(bs)
 	var xw = xdr.NewWriter(&aw)
-	_, err := o.EncodeXDRInto(xw)
-	return []byte(aw), err
+	o.encodeXDR(xw)
+	return []byte(aw)
 }//+n
 
-func (o {{.TypeName}}) EncodeXDRInto(xw *xdr.Writer) (int, error) {
+func (o {{.TypeName}}) encodeXDR(xw *xdr.Writer) (int, error) {
 	{{range $fieldInfo := .Fields}}
 		{{if not $fieldInfo.IsSlice}}
 			{{if ne $fieldInfo.Convert ""}}
 				xw.Write{{$fieldInfo.Encoder}}({{$fieldInfo.Convert}}(o.{{$fieldInfo.Name}}))
 			{{else if $fieldInfo.IsBasic}}
 				{{if ge $fieldInfo.Max 1}}
-					if l := len(o.{{$fieldInfo.Name}}); l > {{$fieldInfo.Max}} {
-						return xw.Tot(), xdr.ElementSizeExceeded("{{$fieldInfo.Name}}", l, {{$fieldInfo.Max}})
+					if len(o.{{$fieldInfo.Name}}) > {{$fieldInfo.Max}} {
+						return xw.Tot(), xdr.ErrElementSizeExceeded
 					}
 				{{end}}
 				xw.Write{{$fieldInfo.Encoder}}(o.{{$fieldInfo.Name}})
 			{{else}}
-				_, err := o.{{$fieldInfo.Name}}.EncodeXDRInto(xw)
+				_, err := o.{{$fieldInfo.Name}}.encodeXDR(xw)
 				if err != nil {
 					return xw.Tot(), err
 				}
 			{{end}}
 		{{else}}
 			{{if ge $fieldInfo.Max 1}}
-				if l := len(o.{{$fieldInfo.Name}}); l > {{$fieldInfo.Max}} {
-					return xw.Tot(), xdr.ElementSizeExceeded("{{$fieldInfo.Name}}", l, {{$fieldInfo.Max}})
+				if len(o.{{$fieldInfo.Name}}) > {{$fieldInfo.Max}} {
+					return xw.Tot(), xdr.ErrElementSizeExceeded
 				}
 			{{end}}
 			xw.WriteUint32(uint32(len(o.{{$fieldInfo.Name}})))
@@ -106,7 +95,7 @@ func (o {{.TypeName}}) EncodeXDRInto(xw *xdr.Writer) (int, error) {
 			{{else if $fieldInfo.IsBasic}}
 				xw.Write{{$fieldInfo.Encoder}}(o.{{$fieldInfo.Name}}[i])
 			{{else}}
-				_, err := o.{{$fieldInfo.Name}}[i].EncodeXDRInto(xw)
+				_, err := o.{{$fieldInfo.Name}}[i].encodeXDR(xw)
 				if err != nil {
 					return xw.Tot(), err
 				}
@@ -119,16 +108,16 @@ func (o {{.TypeName}}) EncodeXDRInto(xw *xdr.Writer) (int, error) {
 
 func (o *{{.TypeName}}) DecodeXDR(r io.Reader) error {
 	xr := xdr.NewReader(r)
-	return o.DecodeXDRFrom(xr)
+	return o.decodeXDR(xr)
 }//+n
 
 func (o *{{.TypeName}}) UnmarshalXDR(bs []byte) error {
 	var br = bytes.NewReader(bs)
 	var xr = xdr.NewReader(br)
-	return o.DecodeXDRFrom(xr)
+	return o.decodeXDR(xr)
 }//+n
 
-func (o *{{.TypeName}}) DecodeXDRFrom(xr *xdr.Reader) error {
+func (o *{{.TypeName}}) decodeXDR(xr *xdr.Reader) error {
 	{{range $fieldInfo := .Fields}}
 		{{if not $fieldInfo.IsSlice}}
 			{{if ne $fieldInfo.Convert ""}}
@@ -140,16 +129,13 @@ func (o *{{.TypeName}}) DecodeXDRFrom(xr *xdr.Reader) error {
 					o.{{$fieldInfo.Name}} = xr.Read{{$fieldInfo.Encoder}}()
 				{{end}}
 			{{else}}
-				(&o.{{$fieldInfo.Name}}).DecodeXDRFrom(xr)
+				(&o.{{$fieldInfo.Name}}).decodeXDR(xr)
 			{{end}}
 		{{else}}
 			_{{$fieldInfo.Name}}Size := int(xr.ReadUint32())
-			if _{{$fieldInfo.Name}}Size < 0 {
-				return xdr.ElementSizeExceeded("{{$fieldInfo.Name}}", _{{$fieldInfo.Name}}Size, {{$fieldInfo.Max}})
-			}
 			{{if ge $fieldInfo.Max 1}}
 				if _{{$fieldInfo.Name}}Size > {{$fieldInfo.Max}} {
-					return xdr.ElementSizeExceeded("{{$fieldInfo.Name}}", _{{$fieldInfo.Name}}Size, {{$fieldInfo.Max}})
+					return xdr.ErrElementSizeExceeded
 				}
 			{{end}}
 			o.{{$fieldInfo.Name}} = make([]{{$fieldInfo.FieldType}}, _{{$fieldInfo.Name}}Size)
@@ -157,13 +143,9 @@ func (o *{{.TypeName}}) DecodeXDRFrom(xr *xdr.Reader) error {
 				{{if ne $fieldInfo.Convert ""}}
 					o.{{$fieldInfo.Name}}[i] = {{$fieldInfo.FieldType}}(xr.Read{{$fieldInfo.Encoder}}())
 				{{else if $fieldInfo.IsBasic}}
-					{{if ge $fieldInfo.Submax 1}}
-						o.{{$fieldInfo.Name}}[i] = xr.Read{{$fieldInfo.Encoder}}Max({{$fieldInfo.Submax}})
-					{{else}}
-						o.{{$fieldInfo.Name}}[i] = xr.Read{{$fieldInfo.Encoder}}()
-					{{end}}
+					o.{{$fieldInfo.Name}}[i] = xr.Read{{$fieldInfo.Encoder}}()
 				{{else}}
-					(&o.{{$fieldInfo.Name}}[i]).DecodeXDRFrom(xr)
+					(&o.{{$fieldInfo.Name}}[i]).decodeXDR(xr)
 				{{end}}
 			}
 		{{end}}
@@ -171,7 +153,7 @@ func (o *{{.TypeName}}) DecodeXDRFrom(xr *xdr.Reader) error {
 	return xr.Error()
 }`))
 
-var maxRe = regexp.MustCompile(`(?:\Wmax:)(\d+)(?:\s*,\s*(\d+))?`)
+var maxRe = regexp.MustCompile(`\Wmax:(\d+)`)
 
 type typeSet struct {
 	Type    string
@@ -203,15 +185,11 @@ func handleStruct(t *ast.StructType) []fieldInfo {
 		}
 
 		fn := sf.Names[0].Name
-		var max1, max2 int
+		var max = 0
 		if sf.Comment != nil {
 			c := sf.Comment.List[0].Text
-			m := maxRe.FindStringSubmatch(c)
-			if len(m) >= 2 {
-				max1, _ = strconv.Atoi(m[1])
-			}
-			if len(m) >= 3 {
-				max2, _ = strconv.Atoi(m[2])
+			if m := maxRe.FindStringSubmatch(c); m != nil {
+				max, _ = strconv.Atoi(m[1])
 			}
 			if strings.Contains(c, "noencode") {
 				continue
@@ -229,16 +207,14 @@ func handleStruct(t *ast.StructType) []fieldInfo {
 					FieldType: tn,
 					Encoder:   enc.Encoder,
 					Convert:   enc.Type,
-					Max:       max1,
-					Submax:    max2,
+					Max:       max,
 				}
 			} else {
 				f = fieldInfo{
 					Name:      fn,
 					IsBasic:   false,
 					FieldType: tn,
-					Max:       max1,
-					Submax:    max2,
+					Max:       max,
 				}
 			}
 
@@ -256,8 +232,7 @@ func handleStruct(t *ast.StructType) []fieldInfo {
 					FieldType: tn,
 					Encoder:   enc.Encoder,
 					Convert:   enc.Type,
-					Max:       max1,
-					Submax:    max2,
+					Max:       max,
 				}
 			} else if enc, ok := xdrEncoders[tn]; ok {
 				f = fieldInfo{
@@ -267,26 +242,17 @@ func handleStruct(t *ast.StructType) []fieldInfo {
 					FieldType: tn,
 					Encoder:   enc.Encoder,
 					Convert:   enc.Type,
-					Max:       max1,
-					Submax:    max2,
+					Max:       max,
 				}
 			} else {
 				f = fieldInfo{
 					Name:      fn,
+					IsBasic:   false,
 					IsSlice:   true,
 					FieldType: tn,
-					Max:       max1,
-					Submax:    max2,
+					Max:       max,
 				}
 			}
-
-		case *ast.SelectorExpr:
-			f = fieldInfo{
-				Name:      fn,
-				FieldType: ft.Sel.Name,
-				Max:       max1,
-				Submax:    max2,
-			}
 		}
 
 		fs = append(fs, f)
@@ -295,7 +261,7 @@ func handleStruct(t *ast.StructType) []fieldInfo {
 	return fs
 }
 
-func generateCode(output io.Writer, s structInfo) {
+func generateCode(s structInfo) {
 	name := s.Name
 	fs := s.Fields
 
@@ -312,7 +278,7 @@ func generateCode(output io.Writer, s structInfo) {
 	if err != nil {
 		panic(err)
 	}
-	fmt.Fprintln(output, string(bs))
+	fmt.Println(string(bs))
 }
 
 func uncamelize(s string) string {
@@ -321,71 +287,69 @@ func uncamelize(s string) string {
 	})
 }
 
-func generateDiagram(output io.Writer, s structInfo) {
+func generateDiagram(s structInfo) {
 	sn := s.Name
 	fs := s.Fields
 
-	fmt.Fprintln(output, sn+" Structure:")
-	fmt.Fprintln(output)
-	fmt.Fprintln(output, " 0                   1                   2                   3")
-	fmt.Fprintln(output, " 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1")
+	fmt.Println(sn + " Structure:")
+	fmt.Println()
+	fmt.Println(" 0                   1                   2                   3")
+	fmt.Println(" 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1")
 	line := "+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+"
-	fmt.Fprintln(output, line)
+	fmt.Println(line)
 
 	for _, f := range fs {
 		tn := f.FieldType
+		sl := f.IsSlice
 		name := uncamelize(f.Name)
 
-		if f.IsSlice {
-			fmt.Fprintf(output, "| %s |\n", center("Number of "+name, 61))
-			fmt.Fprintln(output, line)
+		if sl {
+			fmt.Printf("| %s |\n", center("Number of "+name, 61))
+			fmt.Println(line)
 		}
 		switch tn {
 		case "bool":
-			fmt.Fprintf(output, "| %s |V|\n", center(name+" (V=0 or 1)", 59))
-			fmt.Fprintln(output, line)
-		case "int16", "uint16":
-			fmt.Fprintf(output, "| %s | %s |\n", center("0x0000", 29), center(name, 29))
-			fmt.Fprintln(output, line)
-		case "int32", "uint32":
-			fmt.Fprintf(output, "| %s |\n", center(name, 61))
-			fmt.Fprintln(output, line)
+			fmt.Printf("| %s |V|\n", center(name+" (V=0 or 1)", 59))
+			fmt.Println(line)
+		case "uint16":
+			fmt.Printf("| %s | %s |\n", center("0x0000", 29), center(name, 29))
+			fmt.Println(line)
+		case "uint32":
+			fmt.Printf("| %s |\n", center(name, 61))
+			fmt.Println(line)
 		case "int64", "uint64":
-			fmt.Fprintf(output, "| %-61s |\n", "")
-			fmt.Fprintf(output, "+ %s +\n", center(name+" (64 bits)", 61))
-			fmt.Fprintf(output, "| %-61s |\n", "")
-			fmt.Fprintln(output, line)
+			fmt.Printf("| %-61s |\n", "")
+			fmt.Printf("+ %s +\n", center(name+" (64 bits)", 61))
+			fmt.Printf("| %-61s |\n", "")
+			fmt.Println(line)
 		case "string", "byte": // XXX We assume slice of byte!
-			fmt.Fprintf(output, "| %s |\n", center("Length of "+name, 61))
-			fmt.Fprintln(output, line)
-			fmt.Fprintf(output, "/ %61s /\n", "")
-			fmt.Fprintf(output, "\\ %s \\\n", center(name+" (variable length)", 61))
-			fmt.Fprintf(output, "/ %61s /\n", "")
-			fmt.Fprintln(output, line)
+			fmt.Printf("| %s |\n", center("Length of "+name, 61))
+			fmt.Println(line)
+			fmt.Printf("/ %61s /\n", "")
+			fmt.Printf("\\ %s \\\n", center(name+" (variable length)", 61))
+			fmt.Printf("/ %61s /\n", "")
+			fmt.Println(line)
 		default:
-			if f.IsSlice {
+			if sl {
 				tn = "Zero or more " + tn + " Structures"
-				fmt.Fprintf(output, "/ %s /\n", center("", 61))
-				fmt.Fprintf(output, "\\ %s \\\n", center(tn, 61))
-				fmt.Fprintf(output, "/ %s /\n", center("", 61))
+				fmt.Printf("/ %s /\n", center("", 61))
+				fmt.Printf("\\ %s \\\n", center(tn, 61))
+				fmt.Printf("/ %s /\n", center("", 61))
 			} else {
-				tn = tn + " Structure"
-				fmt.Fprintf(output, "/ %s /\n", center("", 61))
-				fmt.Fprintf(output, "\\ %s \\\n", center(tn, 61))
-				fmt.Fprintf(output, "/ %s /\n", center("", 61))
+				fmt.Printf("| %s |\n", center(tn, 61))
 			}
-			fmt.Fprintln(output, line)
+			fmt.Println(line)
 		}
 	}
-	fmt.Fprintln(output)
-	fmt.Fprintln(output)
+	fmt.Println()
+	fmt.Println()
 }
 
-func generateXdr(output io.Writer, s structInfo) {
+func generateXdr(s structInfo) {
 	sn := s.Name
 	fs := s.Fields
 
-	fmt.Fprintf(output, "struct %s {\n", sn)
+	fmt.Printf("struct %s {\n", sn)
 
 	for _, f := range fs {
 		tn := f.FieldType
@@ -400,24 +364,22 @@ func generateXdr(output io.Writer, s structInfo) {
 		}
 
 		switch tn {
-		case "int16", "int32":
-			fmt.Fprintf(output, "\tint %s%s;\n", fn, suf)
 		case "uint16", "uint32":
-			fmt.Fprintf(output, "\tunsigned int %s%s;\n", fn, suf)
+			fmt.Printf("\tunsigned int %s%s;\n", fn, suf)
 		case "int64":
-			fmt.Fprintf(output, "\thyper %s%s;\n", fn, suf)
+			fmt.Printf("\thyper %s%s;\n", fn, suf)
 		case "uint64":
-			fmt.Fprintf(output, "\tunsigned hyper %s%s;\n", fn, suf)
+			fmt.Printf("\tunsigned hyper %s%s;\n", fn, suf)
 		case "string":
-			fmt.Fprintf(output, "\tstring %s<%s>;\n", fn, l)
+			fmt.Printf("\tstring %s<%s>;\n", fn, l)
 		case "byte":
-			fmt.Fprintf(output, "\topaque %s<%s>;\n", fn, l)
+			fmt.Printf("\topaque %s<%s>;\n", fn, l)
 		default:
-			fmt.Fprintf(output, "\t%s %s%s;\n", tn, fn, suf)
+			fmt.Printf("\t%s %s%s;\n", tn, fn, suf)
 		}
 	}
-	fmt.Fprintln(output, "}")
-	fmt.Fprintln(output)
+	fmt.Println("}")
+	fmt.Println()
 }
 
 func center(s string, w int) string {
@@ -448,35 +410,25 @@ func inspector(structs *[]structInfo) func(ast.Node) bool {
 }
 
 func main() {
-	outputFile := flag.String("o", "", "Output file, blank for stdout")
 	flag.Parse()
 	fname := flag.Arg(0)
 
 	fset := token.NewFileSet()
 	f, err := parser.ParseFile(fset, fname, nil, parser.ParseComments)
 	if err != nil {
-		log.Fatal(err)
+		panic(err)
 	}
 
 	var structs []structInfo
 	i := inspector(&structs)
 	ast.Inspect(f, i)
 
-	var output io.Writer = os.Stdout
-	if *outputFile != "" {
-		fd, err := os.Create(*outputFile)
-		if err != nil {
-			log.Fatal(err)
-		}
-		output = fd
-	}
-
-	headerTpl.Execute(output, map[string]string{"Package": f.Name.Name})
+	headerTpl.Execute(os.Stdout, map[string]string{"Package": f.Name.Name})
 	for _, s := range structs {
-		fmt.Fprintf(output, "\n/*\n\n")
-		generateDiagram(output, s)
-		generateXdr(output, s)
-		fmt.Fprintf(output, "*/\n")
-		generateCode(output, s)
+		fmt.Printf("\n/*\n\n")
+		generateDiagram(s)
+		generateXdr(s)
+		fmt.Printf("*/\n")
+		generateCode(s)
 	}
 }

Godeps/_workspace/src/github.com/calmh/xdr/encdec_test.go

@@ -0,0 +1,75 @@
+// Copyright (C) 2014 Jakob Borg. All rights reserved. Use of this source code
+// is governed by an MIT-style license that can be found in the LICENSE file.
+
+package xdr_test
+
+import (
+	"bytes"
+	"math/rand"
+	"reflect"
+	"testing"
+	"testing/quick"
+
+	"github.com/calmh/xdr"
+)
+
+// Contains all supported types
+type TestStruct struct {
+	I    int
+	I8   int8
+	UI8  uint8
+	I16  int16
+	UI16 uint16
+	I32  int32
+	UI32 uint32
+	I64  int64
+	UI64 uint64
+	BS   []byte
+	S    string
+	C    Opaque
+}
+
+type Opaque [32]byte
+
+func (u *Opaque) encodeXDR(w *xdr.Writer) (int, error) {
+	return w.WriteRaw(u[:])
+}
+
+func (u *Opaque) decodeXDR(r *xdr.Reader) (int, error) {
+	return r.ReadRaw(u[:])
+}
+
+func (Opaque) Generate(rand *rand.Rand, size int) reflect.Value {
+	var u Opaque
+	for i := range u[:] {
+		u[i] = byte(rand.Int())
+	}
+	return reflect.ValueOf(u)
+}
+
+func TestEncDec(t *testing.T) {
+	fn := func(t0 TestStruct) bool {
+		bs := t0.MarshalXDR()
+		var t1 TestStruct
+		err := t1.UnmarshalXDR(bs)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		// Not comparing with DeepEqual since we'll unmarshal nil slices as empty
+		if t0.I != t1.I ||
+			t0.I16 != t1.I16 || t0.UI16 != t1.UI16 ||
+			t0.I32 != t1.I32 || t0.UI32 != t1.UI32 ||
+			t0.I64 != t1.I64 || t0.UI64 != t1.UI64 ||
+			bytes.Compare(t0.BS, t1.BS) != 0 ||
+			t0.S != t1.S || t0.C != t1.C {
+			t.Logf("%#v", t0)
+			t.Logf("%#v", t1)
+			return false
+		}
+		return true
+	}
+	if err := quick.Check(fn, nil); err != nil {
+		t.Error(err)
+	}
+}

Godeps/_workspace/src/github.com/calmh/xdr/encdec_xdr_test.go

@@ -0,0 +1,136 @@
+// ************************************************************
+// This file is automatically generated by genxdr. Do not edit.
+// ************************************************************
+
+package xdr_test
+
+import (
+	"bytes"
+	"io"
+
+	"github.com/calmh/xdr"
+)
+
+/*
+
+TestStruct Structure:
+
+ 0                   1                   2                   3
+ 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                              int                              |
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                             int8                              |
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                             uint8                             |
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                             int16                             |
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|            0x0000             |             UI16              |
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                             int32                             |
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                             UI32                              |
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                                                               |
++                         I64 (64 bits)                         +
+|                                                               |
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                                                               |
++                        UI64 (64 bits)                         +
+|                                                               |
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                         Length of BS                          |
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+/                                                               /
+\                     BS (variable length)                      \
+/                                                               /
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                          Length of S                          |
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+/                                                               /
+\                      S (variable length)                      \
+/                                                               /
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+|                            Opaque                             |
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+
+
+struct TestStruct {
+	int I;
+	int8 I8;
+	uint8 UI8;
+	int16 I16;
+	unsigned int UI16;
+	int32 I32;
+	unsigned int UI32;
+	hyper I64;
+	unsigned hyper UI64;
+	opaque BS<>;
+	string S<>;
+	Opaque C;
+}
+
+*/
+
+func (o TestStruct) EncodeXDR(w io.Writer) (int, error) {
+	var xw = xdr.NewWriter(w)
+	return o.encodeXDR(xw)
+}
+
+func (o TestStruct) MarshalXDR() []byte {
+	return o.AppendXDR(make([]byte, 0, 128))
+}
+
+func (o TestStruct) AppendXDR(bs []byte) []byte {
+	var aw = xdr.AppendWriter(bs)
+	var xw = xdr.NewWriter(&aw)
+	o.encodeXDR(xw)
+	return []byte(aw)
+}
+
+func (o TestStruct) encodeXDR(xw *xdr.Writer) (int, error) {
+	xw.WriteUint64(uint64(o.I))
+	xw.WriteUint8(uint8(o.I8))
+	xw.WriteUint8(o.UI8)
+	xw.WriteUint16(uint16(o.I16))
+	xw.WriteUint16(o.UI16)
+	xw.WriteUint32(uint32(o.I32))
+	xw.WriteUint32(o.UI32)
+	xw.WriteUint64(uint64(o.I64))
+	xw.WriteUint64(o.UI64)
+	xw.WriteBytes(o.BS)
+	xw.WriteString(o.S)
+	_, err := o.C.encodeXDR(xw)
+	if err != nil {
+		return xw.Tot(), err
+	}
+	return xw.Tot(), xw.Error()
+}
+
+func (o *TestStruct) DecodeXDR(r io.Reader) error {
+	xr := xdr.NewReader(r)
+	return o.decodeXDR(xr)
+}
+
+func (o *TestStruct) UnmarshalXDR(bs []byte) error {
+	var br = bytes.NewReader(bs)
+	var xr = xdr.NewReader(br)
+	return o.decodeXDR(xr)
+}
+
+func (o *TestStruct) decodeXDR(xr *xdr.Reader) error {
+	o.I = int(xr.ReadUint64())
+	o.I8 = int8(xr.ReadUint8())
+	o.UI8 = xr.ReadUint8()
+	o.I16 = int16(xr.ReadUint16())
+	o.UI16 = xr.ReadUint16()
+	o.I32 = int32(xr.ReadUint32())
+	o.UI32 = xr.ReadUint32()
+	o.I64 = int64(xr.ReadUint64())
+	o.UI64 = xr.ReadUint64()
+	o.BS = xr.ReadBytes()
+	o.S = xr.ReadString()
+	(&o.C).decodeXDR(xr)
+	return xr.Error()
+}

Godeps/_workspace/src/github.com/calmh/xdr/reader.go

@@ -5,12 +5,14 @@
 package xdr
 
 import (
-	"fmt"
+	"errors"
 	"io"
 	"reflect"
 	"unsafe"
 )
 
+var ErrElementSizeExceeded = errors.New("element size exceeded")
+
 type Reader struct {
 	r   io.Reader
 	err error
@@ -68,9 +70,8 @@ func (r *Reader) ReadBytesMaxInto(max int, dst []byte) []byte {
 	if r.err != nil {
 		return nil
 	}
-	if l < 0 || max > 0 && l > max {
-		// l may be negative on 32 bit builds
-		r.err = ElementSizeExceeded("bytes field", l, max)
+	if max > 0 && l > max {
+		r.err = ErrElementSizeExceeded
 		return nil
 	}
 
@@ -155,17 +156,9 @@ func (e XDRError) Error() string {
 	return "xdr " + e.op + ": " + e.err.Error()
 }
 
-func (e XDRError) IsEOF() bool {
-	return e.err == io.EOF
-}
-
 func (r *Reader) Error() error {
 	if r.err == nil {
 		return nil
 	}
 	return XDRError{"read", r.err}
 }
-
-func ElementSizeExceeded(field string, size, limit int) error {
-	return fmt.Errorf("%s exceeds size limit; %d > %d", field, size, limit)
-}

Godeps/_workspace/src/github.com/calmh/xdr/refl_test.go

@@ -0,0 +1,44 @@
+// Copyright (C) 2014 Jakob Borg. All rights reserved. Use of this source code
+// is governed by an MIT-style license that can be found in the LICENSE file.
+
+// +build refl
+
+package xdr_test
+
+import (
+	"bytes"
+	"testing"
+
+	refl "github.com/davecgh/go-xdr/xdr"
+)
+
+func TestCompareMarshals(t *testing.T) {
+	e0 := s.MarshalXDR()
+	e1, err := refl.Marshal(s)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if bytes.Compare(e0, e1) != 0 {
+		t.Fatalf("Encoding mismatch;\n\t%x (this)\n\t%x (refl)", e0, e1)
+	}
+}
+
+func BenchmarkReflMarshal(b *testing.B) {
+	var err error
+	for i := 0; i < b.N; i++ {
+		res, err = refl.Marshal(s)
+		if err != nil {
+			b.Fatal(err)
+		}
+	}
+}
+
+func BenchmarkReflUnmarshal(b *testing.B) {
+	var t XDRBenchStruct
+	for i := 0; i < b.N; i++ {
+		_, err := refl.Unmarshal(e, &t)
+		if err != nil {
+			b.Fatal(err)
+		}
+	}
+}

Godeps/_workspace/src/github.com/calmh/xdr/xdr_test.go

@@ -0,0 +1,92 @@
+// Copyright (C) 2014 Jakob Borg. All rights reserved. Use of this source code
+// is governed by an MIT-style license that can be found in the LICENSE file.
+
+package xdr
+
+import (
+	"bytes"
+	"testing"
+	"testing/quick"
+)
+
+func TestBytesNil(t *testing.T) {
+	fn := func(bs []byte) bool {
+		var b = new(bytes.Buffer)
+		var w = NewWriter(b)
+		var r = NewReader(b)
+		w.WriteBytes(bs)
+		w.WriteBytes(bs)
+		r.ReadBytes()
+		res := r.ReadBytes()
+		return bytes.Compare(bs, res) == 0
+	}
+	if err := quick.Check(fn, nil); err != nil {
+		t.Error(err)
+	}
+}
+
+func TestBytesGiven(t *testing.T) {
+	fn := func(bs []byte) bool {
+		var b = new(bytes.Buffer)
+		var w = NewWriter(b)
+		var r = NewReader(b)
+		w.WriteBytes(bs)
+		w.WriteBytes(bs)
+		res := make([]byte, 12)
+		res = r.ReadBytesInto(res)
+		res = r.ReadBytesInto(res)
+		return bytes.Compare(bs, res) == 0
+	}
+	if err := quick.Check(fn, nil); err != nil {
+		t.Error(err)
+	}
+}
+
+func TestReadBytesMaxInto(t *testing.T) {
+	var max = 64
+	for tot := 32; tot < 128; tot++ {
+		for diff := -32; diff <= 32; diff++ {
+			var b = new(bytes.Buffer)
+			var r = NewReader(b)
+			var w = NewWriter(b)
+
+			var toWrite = make([]byte, tot)
+			w.WriteBytes(toWrite)
+
+			var buf = make([]byte, tot+diff)
+			var bs = r.ReadBytesMaxInto(max, buf)
+
+			if tot <= max {
+				if read := len(bs); read != tot {
+					t.Errorf("Incorrect read bytes, wrote=%d, buf=%d, max=%d, read=%d", tot, tot+diff, max, read)
+				}
+			} else if r.err != ErrElementSizeExceeded {
+				t.Errorf("Unexpected non-ErrElementSizeExceeded error for wrote=%d, max=%d: %v", tot, max, r.err)
+			}
+		}
+	}
+}
+
+func TestReadStringMax(t *testing.T) {
+	for tot := 42; tot < 72; tot++ {
+		for max := 0; max < 128; max++ {
+			var b = new(bytes.Buffer)
+			var r = NewReader(b)
+			var w = NewWriter(b)
+
+			var toWrite = make([]byte, tot)
+			w.WriteBytes(toWrite)
+
+			var str = r.ReadStringMax(max)
+			var read = len(str)
+
+			if max == 0 || tot <= max {
+				if read != tot {
+					t.Errorf("Incorrect read bytes, wrote=%d, max=%d, read=%d", tot, max, read)
+				}
+			} else if r.err != ErrElementSizeExceeded {
+				t.Errorf("Unexpected non-ErrElementSizeExceeded error for wrote=%d, max=%d, read=%d: %v", tot, max, read, r.err)
+			}
+		}
+	}
+}

Godeps/_workspace/src/github.com/golang/snappy/AUTHORS

@@ -1,14 +0,0 @@
-# This is the official list of Snappy-Go authors for copyright purposes.
-# This file is distinct from the CONTRIBUTORS files.
-# See the latter for an explanation.
-
-# Names should be added to this file as
-#	Name or Organization <email address>
-# The email address is not required for organizations.
-
-# Please keep the list sorted.
-
-Damian Gryski <dgryski@gmail.com>
-Google Inc.
-Jan Mercl <0xjnml@gmail.com>
-Sebastien Binet <seb.binet@gmail.com>

Godeps/_workspace/src/github.com/golang/snappy/CONTRIBUTORS

@@ -1,36 +0,0 @@
-# This is the official list of people who can contribute
-# (and typically have contributed) code to the Snappy-Go repository.
-# The AUTHORS file lists the copyright holders; this file
-# lists people.  For example, Google employees are listed here
-# but not in AUTHORS, because Google holds the copyright.
-#
-# The submission process automatically checks to make sure
-# that people submitting code are listed in this file (by email address).
-#
-# Names should be added to this file only after verifying that
-# the individual or the individual's organization has agreed to
-# the appropriate Contributor License Agreement, found here:
-#
-#     http://code.google.com/legal/individual-cla-v1.0.html
-#     http://code.google.com/legal/corporate-cla-v1.0.html
-#
-# The agreement for individuals can be filled out on the web.
-#
-# When adding J Random Contributor's name to this file,
-# either J's name or J's organization's name should be
-# added to the AUTHORS file, depending on whether the
-# individual or corporate CLA was used.
-
-# Names should be added to this file like so:
-#     Name <email address>
-
-# Please keep the list sorted.
-
-Damian Gryski <dgryski@gmail.com>
-Jan Mercl <0xjnml@gmail.com>
-Kai Backman <kaib@golang.org>
-Marc-Antoine Ruel <maruel@chromium.org>
-Nigel Tao <nigeltao@golang.org>
-Rob Pike <r@golang.org>
-Russ Cox <rsc@golang.org>
-Sebastien Binet <seb.binet@gmail.com>

Godeps/_workspace/src/github.com/golang/snappy/LICENSE

@@ -1,27 +0,0 @@
-Copyright (c) 2011 The Snappy-Go Authors. All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are
-met:
-
-   * Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-   * Redistributions in binary form must reproduce the above
-copyright notice, this list of conditions and the following disclaimer
-in the documentation and/or other materials provided with the
-distribution.
-   * Neither the name of Google Inc. nor the names of its
-contributors may be used to endorse or promote products derived from
-this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Godeps/_workspace/src/github.com/golang/snappy/README

@@ -1,7 +0,0 @@
-The Snappy compression format in the Go programming language.
-
-To download and install from source:
-$ go get github.com/golang/snappy
-
-Unless otherwise noted, the Snappy-Go source files are distributed
-under the BSD-style license found in the LICENSE file.

Godeps/_workspace/src/github.com/golang/snappy/decode.go

@@ -1,294 +0,0 @@
-// Copyright 2011 The Snappy-Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package snappy
-
-import (
-	"encoding/binary"
-	"errors"
-	"io"
-)
-
-var (
-	// ErrCorrupt reports that the input is invalid.
-	ErrCorrupt = errors.New("snappy: corrupt input")
-	// ErrTooLarge reports that the uncompressed length is too large.
-	ErrTooLarge = errors.New("snappy: decoded block is too large")
-	// ErrUnsupported reports that the input isn't supported.
-	ErrUnsupported = errors.New("snappy: unsupported input")
-)
-
-// DecodedLen returns the length of the decoded block.
-func DecodedLen(src []byte) (int, error) {
-	v, _, err := decodedLen(src)
-	return v, err
-}
-
-// decodedLen returns the length of the decoded block and the number of bytes
-// that the length header occupied.
-func decodedLen(src []byte) (blockLen, headerLen int, err error) {
-	v, n := binary.Uvarint(src)
-	if n <= 0 || v > 0xffffffff {
-		return 0, 0, ErrCorrupt
-	}
-
-	const wordSize = 32 << (^uint(0) >> 32 & 1)
-	if wordSize == 32 && v > 0x7fffffff {
-		return 0, 0, ErrTooLarge
-	}
-	return int(v), n, nil
-}
-
-// Decode returns the decoded form of src. The returned slice may be a sub-
-// slice of dst if dst was large enough to hold the entire decoded block.
-// Otherwise, a newly allocated slice will be returned.
-// It is valid to pass a nil dst.
-func Decode(dst, src []byte) ([]byte, error) {
-	dLen, s, err := decodedLen(src)
-	if err != nil {
-		return nil, err
-	}
-	if len(dst) < dLen {
-		dst = make([]byte, dLen)
-	}
-
-	var d, offset, length int
-	for s < len(src) {
-		switch src[s] & 0x03 {
-		case tagLiteral:
-			x := uint(src[s] >> 2)
-			switch {
-			case x < 60:
-				s++
-			case x == 60:
-				s += 2
-				if s > len(src) {
-					return nil, ErrCorrupt
-				}
-				x = uint(src[s-1])
-			case x == 61:
-				s += 3
-				if s > len(src) {
-					return nil, ErrCorrupt
-				}
-				x = uint(src[s-2]) | uint(src[s-1])<<8
-			case x == 62:
-				s += 4
-				if s > len(src) {
-					return nil, ErrCorrupt
-				}
-				x = uint(src[s-3]) | uint(src[s-2])<<8 | uint(src[s-1])<<16
-			case x == 63:
-				s += 5
-				if s > len(src) {
-					return nil, ErrCorrupt
-				}
-				x = uint(src[s-4]) | uint(src[s-3])<<8 | uint(src[s-2])<<16 | uint(src[s-1])<<24
-			}
-			length = int(x + 1)
-			if length <= 0 {
-				return nil, errors.New("snappy: unsupported literal length")
-			}
-			if length > len(dst)-d || length > len(src)-s {
-				return nil, ErrCorrupt
-			}
-			copy(dst[d:], src[s:s+length])
-			d += length
-			s += length
-			continue
-
-		case tagCopy1:
-			s += 2
-			if s > len(src) {
-				return nil, ErrCorrupt
-			}
-			length = 4 + int(src[s-2])>>2&0x7
-			offset = int(src[s-2])&0xe0<<3 | int(src[s-1])
-
-		case tagCopy2:
-			s += 3
-			if s > len(src) {
-				return nil, ErrCorrupt
-			}
-			length = 1 + int(src[s-3])>>2
-			offset = int(src[s-2]) | int(src[s-1])<<8
-
-		case tagCopy4:
-			return nil, errors.New("snappy: unsupported COPY_4 tag")
-		}
-
-		end := d + length
-		if offset > d || end > len(dst) {
-			return nil, ErrCorrupt
-		}
-		for ; d < end; d++ {
-			dst[d] = dst[d-offset]
-		}
-	}
-	if d != dLen {
-		return nil, ErrCorrupt
-	}
-	return dst[:d], nil
-}
-
-// NewReader returns a new Reader that decompresses from r, using the framing
-// format described at
-// https://github.com/google/snappy/blob/master/framing_format.txt
-func NewReader(r io.Reader) *Reader {
-	return &Reader{
-		r:       r,
-		decoded: make([]byte, maxUncompressedChunkLen),
-		buf:     make([]byte, MaxEncodedLen(maxUncompressedChunkLen)+checksumSize),
-	}
-}
-
-// Reader is an io.Reader than can read Snappy-compressed bytes.
-type Reader struct {
-	r       io.Reader
-	err     error
-	decoded []byte
-	buf     []byte
-	// decoded[i:j] contains decoded bytes that have not yet been passed on.
-	i, j       int
-	readHeader bool
-}
-
-// Reset discards any buffered data, resets all state, and switches the Snappy
-// reader to read from r. This permits reusing a Reader rather than allocating
-// a new one.
-func (r *Reader) Reset(reader io.Reader) {
-	r.r = reader
-	r.err = nil
-	r.i = 0
-	r.j = 0
-	r.readHeader = false
-}
-
-func (r *Reader) readFull(p []byte) (ok bool) {
-	if _, r.err = io.ReadFull(r.r, p); r.err != nil {
-		if r.err == io.ErrUnexpectedEOF {
-			r.err = ErrCorrupt
-		}
-		return false
-	}
-	return true
-}
-
-// Read satisfies the io.Reader interface.
-func (r *Reader) Read(p []byte) (int, error) {
-	if r.err != nil {
-		return 0, r.err
-	}
-	for {
-		if r.i < r.j {
-			n := copy(p, r.decoded[r.i:r.j])
-			r.i += n
-			return n, nil
-		}
-		if !r.readFull(r.buf[:4]) {
-			return 0, r.err
-		}
-		chunkType := r.buf[0]
-		if !r.readHeader {
-			if chunkType != chunkTypeStreamIdentifier {
-				r.err = ErrCorrupt
-				return 0, r.err
-			}
-			r.readHeader = true
-		}
-		chunkLen := int(r.buf[1]) | int(r.buf[2])<<8 | int(r.buf[3])<<16
-		if chunkLen > len(r.buf) {
-			r.err = ErrUnsupported
-			return 0, r.err
-		}
-
-		// The chunk types are specified at
-		// https://github.com/google/snappy/blob/master/framing_format.txt
-		switch chunkType {
-		case chunkTypeCompressedData:
-			// Section 4.2. Compressed data (chunk type 0x00).
-			if chunkLen < checksumSize {
-				r.err = ErrCorrupt
-				return 0, r.err
-			}
-			buf := r.buf[:chunkLen]
-			if !r.readFull(buf) {
-				return 0, r.err
-			}
-			checksum := uint32(buf[0]) | uint32(buf[1])<<8 | uint32(buf[2])<<16 | uint32(buf[3])<<24
-			buf = buf[checksumSize:]
-
-			n, err := DecodedLen(buf)
-			if err != nil {
-				r.err = err
-				return 0, r.err
-			}
-			if n > len(r.decoded) {
-				r.err = ErrCorrupt
-				return 0, r.err
-			}
-			if _, err := Decode(r.decoded, buf); err != nil {
-				r.err = err
-				return 0, r.err
-			}
-			if crc(r.decoded[:n]) != checksum {
-				r.err = ErrCorrupt
-				return 0, r.err
-			}
-			r.i, r.j = 0, n
-			continue
-
-		case chunkTypeUncompressedData:
-			// Section 4.3. Uncompressed data (chunk type 0x01).
-			if chunkLen < checksumSize {
-				r.err = ErrCorrupt
-				return 0, r.err
-			}
-			buf := r.buf[:checksumSize]
-			if !r.readFull(buf) {
-				return 0, r.err
-			}
-			checksum := uint32(buf[0]) | uint32(buf[1])<<8 | uint32(buf[2])<<16 | uint32(buf[3])<<24
-			// Read directly into r.decoded instead of via r.buf.
-			n := chunkLen - checksumSize
-			if !r.readFull(r.decoded[:n]) {
-				return 0, r.err
-			}
-			if crc(r.decoded[:n]) != checksum {
-				r.err = ErrCorrupt
-				return 0, r.err
-			}
-			r.i, r.j = 0, n
-			continue
-
-		case chunkTypeStreamIdentifier:
-			// Section 4.1. Stream identifier (chunk type 0xff).
-			if chunkLen != len(magicBody) {
-				r.err = ErrCorrupt
-				return 0, r.err
-			}
-			if !r.readFull(r.buf[:len(magicBody)]) {
-				return 0, r.err
-			}
-			for i := 0; i < len(magicBody); i++ {
-				if r.buf[i] != magicBody[i] {
-					r.err = ErrCorrupt
-					return 0, r.err
-				}
-			}
-			continue
-		}
-
-		if chunkType <= 0x7f {
-			// Section 4.5. Reserved unskippable chunks (chunk types 0x02-0x7f).
-			r.err = ErrUnsupported
-			return 0, r.err
-		}
-		// Section 4.4 Padding (chunk type 0xfe).
-		// Section 4.6. Reserved skippable chunks (chunk types 0x80-0xfd).
-		if !r.readFull(r.buf[:chunkLen]) {
-			return 0, r.err
-		}
-	}
-}

Godeps/_workspace/src/github.com/juju/ratelimit/LICENSE

@@ -1,9 +1,3 @@
-All files in this repository are licensed as follows. If you contribute
-to this repository, it is assumed that you license your contribution
-under the same license unless you state otherwise.
-
-All files Copyright (C) 2015 Canonical Ltd. unless otherwise specified in the file.
-
 This software is licensed under the LGPLv3, included below.
 
 As a special exception to the GNU Lesser General Public License version 3

Godeps/_workspace/src/github.com/juju/ratelimit/README.md

@@ -20,7 +20,7 @@ token in the bucket represents one byte.
 ```go
 func Writer(w io.Writer, bucket *Bucket) io.Writer
 ```
-Writer returns a writer that is rate limited by the given token bucket. Each
+Writer returns a reader that is rate limited by the given token bucket. Each
 token in the bucket represents one byte.
 
 #### type Bucket

Godeps/_workspace/src/github.com/juju/ratelimit/ratelimit.go

@@ -2,8 +2,7 @@
 // Licensed under the LGPLv3 with static-linking exception.
 // See LICENCE file for details.
 
-// The ratelimit package provides an efficient token bucket implementation
-// that can be used to limit the rate of arbitrary things.
+// The ratelimit package provides an efficient token bucket implementation.
 // See http://en.wikipedia.org/wiki/Token_bucket.
 package ratelimit
 
@@ -11,7 +10,6 @@ import (
 	"strconv"
 	"sync"
 	"time"
-	"math"
 )
 
 // Bucket represents a token bucket that fills at a predetermined rate.
@@ -57,7 +55,7 @@ func NewBucketWithRate(rate float64, capacity int64) *Bucket {
 			continue
 		}
 		tb := NewBucketWithQuantum(fillInterval, capacity, quantum)
-		if diff := math.Abs(tb.Rate() - rate); diff/rate <= rateMargin {
+		if diff := abs(tb.Rate() - rate); diff/rate <= rateMargin {
 			return tb
 		}
 	}
@@ -219,3 +217,10 @@ func (tb *Bucket) adjust(now time.Time) (currentTick int64) {
 	tb.availTick = currentTick
 	return
 }
+
+func abs(f float64) float64 {
+	if f < 0 {
+		return -f
+	}
+	return f
+}

Godeps/_workspace/src/github.com/juju/ratelimit/ratelimit_test.go

@@ -0,0 +1,328 @@
+// Copyright 2014 Canonical Ltd.
+// Licensed under the LGPLv3 with static-linking exception.
+// See LICENCE file for details.
+
+package ratelimit
+
+import (
+	gc "launchpad.net/gocheck"
+
+	"testing"
+	"time"
+)
+
+func TestPackage(t *testing.T) {
+	gc.TestingT(t)
+}
+
+type rateLimitSuite struct{}
+
+var _ = gc.Suite(rateLimitSuite{})
+
+type takeReq struct {
+	time       time.Duration
+	count      int64
+	expectWait time.Duration
+}
+
+var takeTests = []struct {
+	about        string
+	fillInterval time.Duration
+	capacity     int64
+	reqs         []takeReq
+}{{
+	about:        "serial requests",
+	fillInterval: 250 * time.Millisecond,
+	capacity:     10,
+	reqs: []takeReq{{
+		time:       0,
+		count:      0,
+		expectWait: 0,
+	}, {
+		time:       0,
+		count:      10,
+		expectWait: 0,
+	}, {
+		time:       0,
+		count:      1,
+		expectWait: 250 * time.Millisecond,
+	}, {
+		time:       250 * time.Millisecond,
+		count:      1,
+		expectWait: 250 * time.Millisecond,
+	}},
+}, {
+	about:        "concurrent requests",
+	fillInterval: 250 * time.Millisecond,
+	capacity:     10,
+	reqs: []takeReq{{
+		time:       0,
+		count:      10,
+		expectWait: 0,
+	}, {
+		time:       0,
+		count:      2,
+		expectWait: 500 * time.Millisecond,
+	}, {
+		time:       0,
+		count:      2,
+		expectWait: 1000 * time.Millisecond,
+	}, {
+		time:       0,
+		count:      1,
+		expectWait: 1250 * time.Millisecond,
+	}},
+}, {
+	about:        "more than capacity",
+	fillInterval: 1 * time.Millisecond,
+	capacity:     10,
+	reqs: []takeReq{{
+		time:       0,
+		count:      10,
+		expectWait: 0,
+	}, {
+		time:       20 * time.Millisecond,
+		count:      15,
+		expectWait: 5 * time.Millisecond,
+	}},
+}, {
+	about:        "sub-quantum time",
+	fillInterval: 10 * time.Millisecond,
+	capacity:     10,
+	reqs: []takeReq{{
+		time:       0,
+		count:      10,
+		expectWait: 0,
+	}, {
+		time:       7 * time.Millisecond,
+		count:      1,
+		expectWait: 3 * time.Millisecond,
+	}, {
+		time:       8 * time.Millisecond,
+		count:      1,
+		expectWait: 12 * time.Millisecond,
+	}},
+}, {
+	about:        "within capacity",
+	fillInterval: 10 * time.Millisecond,
+	capacity:     5,
+	reqs: []takeReq{{
+		time:       0,
+		count:      5,
+		expectWait: 0,
+	}, {
+		time:       60 * time.Millisecond,
+		count:      5,
+		expectWait: 0,
+	}, {
+		time:       60 * time.Millisecond,
+		count:      1,
+		expectWait: 10 * time.Millisecond,
+	}, {
+		time:       80 * time.Millisecond,
+		count:      2,
+		expectWait: 10 * time.Millisecond,
+	}},
+}}
+
+func (rateLimitSuite) TestTake(c *gc.C) {
+	for i, test := range takeTests {
+		tb := NewBucket(test.fillInterval, test.capacity)
+		for j, req := range test.reqs {
+			d, ok := tb.take(tb.startTime.Add(req.time), req.count, infinityDuration)
+			c.Assert(ok, gc.Equals, true)
+			if d != req.expectWait {
+				c.Fatalf("test %d.%d, %s, got %v want %v", i, j, test.about, d, req.expectWait)
+			}
+		}
+	}
+}
+
+func (rateLimitSuite) TestTakeMaxDuration(c *gc.C) {
+	for i, test := range takeTests {
+		tb := NewBucket(test.fillInterval, test.capacity)
+		for j, req := range test.reqs {
+			if req.expectWait > 0 {
+				d, ok := tb.take(tb.startTime.Add(req.time), req.count, req.expectWait-1)
+				c.Assert(ok, gc.Equals, false)
+				c.Assert(d, gc.Equals, time.Duration(0))
+			}
+			d, ok := tb.take(tb.startTime.Add(req.time), req.count, req.expectWait)
+			c.Assert(ok, gc.Equals, true)
+			if d != req.expectWait {
+				c.Fatalf("test %d.%d, %s, got %v want %v", i, j, test.about, d, req.expectWait)
+			}
+		}
+	}
+}
+
+type takeAvailableReq struct {
+	time   time.Duration
+	count  int64
+	expect int64
+}
+
+var takeAvailableTests = []struct {
+	about        string
+	fillInterval time.Duration
+	capacity     int64
+	reqs         []takeAvailableReq
+}{{
+	about:        "serial requests",
+	fillInterval: 250 * time.Millisecond,
+	capacity:     10,
+	reqs: []takeAvailableReq{{
+		time:   0,
+		count:  0,
+		expect: 0,
+	}, {
+		time:   0,
+		count:  10,
+		expect: 10,
+	}, {
+		time:   0,
+		count:  1,
+		expect: 0,
+	}, {
+		time:   250 * time.Millisecond,
+		count:  1,
+		expect: 1,
+	}},
+}, {
+	about:        "concurrent requests",
+	fillInterval: 250 * time.Millisecond,
+	capacity:     10,
+	reqs: []takeAvailableReq{{
+		time:   0,
+		count:  5,
+		expect: 5,
+	}, {
+		time:   0,
+		count:  2,
+		expect: 2,
+	}, {
+		time:   0,
+		count:  5,
+		expect: 3,
+	}, {
+		time:   0,
+		count:  1,
+		expect: 0,
+	}},
+}, {
+	about:        "more than capacity",
+	fillInterval: 1 * time.Millisecond,
+	capacity:     10,
+	reqs: []takeAvailableReq{{
+		time:   0,
+		count:  10,
+		expect: 10,
+	}, {
+		time:   20 * time.Millisecond,
+		count:  15,
+		expect: 10,
+	}},
+}, {
+	about:        "within capacity",
+	fillInterval: 10 * time.Millisecond,
+	capacity:     5,
+	reqs: []takeAvailableReq{{
+		time:   0,
+		count:  5,
+		expect: 5,
+	}, {
+		time:   60 * time.Millisecond,
+		count:  5,
+		expect: 5,
+	}, {
+		time:   70 * time.Millisecond,
+		count:  1,
+		expect: 1,
+	}},
+}}
+
+func (rateLimitSuite) TestTakeAvailable(c *gc.C) {
+	for i, test := range takeAvailableTests {
+		tb := NewBucket(test.fillInterval, test.capacity)
+		for j, req := range test.reqs {
+			d := tb.takeAvailable(tb.startTime.Add(req.time), req.count)
+			if d != req.expect {
+				c.Fatalf("test %d.%d, %s, got %v want %v", i, j, test.about, d, req.expect)
+			}
+		}
+	}
+}
+
+func (rateLimitSuite) TestPanics(c *gc.C) {
+	c.Assert(func() { NewBucket(0, 1) }, gc.PanicMatches, "token bucket fill interval is not > 0")
+	c.Assert(func() { NewBucket(-2, 1) }, gc.PanicMatches, "token bucket fill interval is not > 0")
+	c.Assert(func() { NewBucket(1, 0) }, gc.PanicMatches, "token bucket capacity is not > 0")
+	c.Assert(func() { NewBucket(1, -2) }, gc.PanicMatches, "token bucket capacity is not > 0")
+}
+
+func isCloseTo(x, y, tolerance float64) bool {
+	return abs(x-y)/y < tolerance
+}
+
+func (rateLimitSuite) TestRate(c *gc.C) {
+	tb := NewBucket(1, 1)
+	if !isCloseTo(tb.Rate(), 1e9, 0.00001) {
+		c.Fatalf("got %v want 1e9", tb.Rate())
+	}
+	tb = NewBucket(2*time.Second, 1)
+	if !isCloseTo(tb.Rate(), 0.5, 0.00001) {
+		c.Fatalf("got %v want 0.5", tb.Rate())
+	}
+	tb = NewBucketWithQuantum(100*time.Millisecond, 1, 5)
+	if !isCloseTo(tb.Rate(), 50, 0.00001) {
+		c.Fatalf("got %v want 50", tb.Rate())
+	}
+}
+
+func checkRate(c *gc.C, rate float64) {
+	tb := NewBucketWithRate(rate, 1<<62)
+	if !isCloseTo(tb.Rate(), rate, rateMargin) {
+		c.Fatalf("got %g want %v", tb.Rate(), rate)
+	}
+	d, ok := tb.take(tb.startTime, 1<<62, infinityDuration)
+	c.Assert(ok, gc.Equals, true)
+	c.Assert(d, gc.Equals, time.Duration(0))
+
+	// Check that the actual rate is as expected by
+	// asking for a not-quite multiple of the bucket's
+	// quantum and checking that the wait time
+	// correct.
+	d, ok = tb.take(tb.startTime, tb.quantum*2-tb.quantum/2, infinityDuration)
+	c.Assert(ok, gc.Equals, true)
+	expectTime := 1e9 * float64(tb.quantum) * 2 / rate
+	if !isCloseTo(float64(d), expectTime, rateMargin) {
+		c.Fatalf("rate %g: got %g want %v", rate, float64(d), expectTime)
+	}
+}
+
+func (rateLimitSuite) TestNewWithRate(c *gc.C) {
+	for rate := float64(1); rate < 1e6; rate += 7 {
+		checkRate(c, rate)
+	}
+	for _, rate := range []float64{
+		1024 * 1024 * 1024,
+		1e-5,
+		0.9e-5,
+		0.5,
+		0.9,
+		0.9e8,
+		3e12,
+		4e18,
+	} {
+		checkRate(c, rate)
+		checkRate(c, rate/3)
+		checkRate(c, rate*1.3)
+	}
+}
+
+func BenchmarkWait(b *testing.B) {
+	tb := NewBucket(1, 16*1024)
+	for i := b.N - 1; i >= 0; i-- {
+		tb.Wait(1)
+	}
+}

Godeps/_workspace/src/github.com/kardianos/osext/LICENSE

@@ -1,27 +0,0 @@
-Copyright (c) 2012 The Go Authors. All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are
-met:
-
-   * Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-   * Redistributions in binary form must reproduce the above
-copyright notice, this list of conditions and the following disclaimer
-in the documentation and/or other materials provided with the
-distribution.
-   * Neither the name of Google Inc. nor the names of its
-contributors may be used to endorse or promote products derived from
-this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Godeps/_workspace/src/github.com/kardianos/osext/README.md

@@ -1,16 +0,0 @@
-### Extensions to the "os" package.
-
-## Find the current Executable and ExecutableFolder.
-
-There is sometimes utility in finding the current executable file
-that is running. This can be used for upgrading the current executable
-or finding resources located relative to the executable file. Both
-working directory and the os.Args[0] value are arbitrary and cannot
-be relied on; os.Args[0] can be "faked".
-
-Multi-platform and supports:
- * Linux
- * OS X
- * Windows
- * Plan 9
- * BSDs.

Godeps/_workspace/src/github.com/rcrowley/go-metrics/.gitignore

@@ -1,9 +0,0 @@
-*.[68]
-*.a
-*.out
-*.swp
-_obj
-_testmain.go
-cmd/metrics-bench/metrics-bench
-cmd/metrics-example/metrics-example
-cmd/never-read/never-read

Godeps/_workspace/src/github.com/rcrowley/go-metrics/.travis.yml

@@ -1,13 +0,0 @@
-language: go
-
-go:
-    - 1.2
-    - 1.3
-    - 1.4
-
-script:
-    - ./validate.sh
-
-# this should give us faster builds according to 
-# http://docs.travis-ci.com/user/migrating-from-legacy/
-sudo: false

Godeps/_workspace/src/github.com/rcrowley/go-metrics/LICENSE

@@ -1,29 +0,0 @@
-Copyright 2012 Richard Crowley. All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are
-met:
-
-    1.  Redistributions of source code must retain the above copyright
-        notice, this list of conditions and the following disclaimer.
-
-    2.  Redistributions in binary form must reproduce the above
-        copyright notice, this list of conditions and the following
-        disclaimer in the documentation and/or other materials provided
-        with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY RICHARD CROWLEY ``AS IS'' AND ANY EXPRESS
-OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-DISCLAIMED. IN NO EVENT SHALL RICHARD CROWLEY OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
-THE POSSIBILITY OF SUCH DAMAGE.
-
-The views and conclusions contained in the software and documentation
-are those of the authors and should not be interpreted as representing
-official policies, either expressed or implied, of Richard Crowley.

Godeps/_workspace/src/github.com/rcrowley/go-metrics/README.md

@@ -1,126 +0,0 @@
-go-metrics
-==========
-
-![travis build status](https://travis-ci.org/rcrowley/go-metrics.svg?branch=master)
-
-Go port of Coda Hale's Metrics library: <https://github.com/dropwizard/metrics>.
-
-Documentation: <http://godoc.org/github.com/rcrowley/go-metrics>.
-
-Usage
------
-
-Create and update metrics:
-
-```go
-c := metrics.NewCounter()
-metrics.Register("foo", c)
-c.Inc(47)
-
-g := metrics.NewGauge()
-metrics.Register("bar", g)
-g.Update(47)
-
-s := metrics.NewExpDecaySample(1028, 0.015) // or metrics.NewUniformSample(1028)
-h := metrics.NewHistogram(s)
-metrics.Register("baz", h)
-h.Update(47)
-
-m := metrics.NewMeter()
-metrics.Register("quux", m)
-m.Mark(47)
-
-t := metrics.NewTimer()
-metrics.Register("bang", t)
-t.Time(func() {})
-t.Update(47)
-```
-
-Periodically log every metric in human-readable form to standard error:
-
-```go
-go metrics.Log(metrics.DefaultRegistry, 60e9, log.New(os.Stderr, "metrics: ", log.Lmicroseconds))
-```
-
-Periodically log every metric in slightly-more-parseable form to syslog:
-
-```go
-w, _ := syslog.Dial("unixgram", "/dev/log", syslog.LOG_INFO, "metrics")
-go metrics.Syslog(metrics.DefaultRegistry, 60e9, w)
-```
-
-Periodically emit every metric to Graphite using the [Graphite client](https://github.com/cyberdelia/go-metrics-graphite):
-
-```go
-
-import "github.com/cyberdelia/go-metrics-graphite"
-
-addr, _ := net.ResolveTCPAddr("tcp", "127.0.0.1:2003")
-go graphite.Graphite(metrics.DefaultRegistry, 10e9, "metrics", addr)
-```
-
-Periodically emit every metric into InfluxDB:
-
-**NOTE:** this has been pulled out of the library due to constant fluctuations
-in the InfluxDB API. In fact, all client libraries are on their way out. see
-issues [#121](https://github.com/rcrowley/go-metrics/issues/121) and
-[#124](https://github.com/rcrowley/go-metrics/issues/124) for progress and details.
-
-```go
-import "github.com/rcrowley/go-metrics/influxdb"
-
-go influxdb.Influxdb(metrics.DefaultRegistry, 10e9, &influxdb.Config{
-    Host:     "127.0.0.1:8086",
-    Database: "metrics",
-    Username: "test",
-    Password: "test",
-})
-```
-
-Periodically upload every metric to Librato using the [Librato client](https://github.com/mihasya/go-metrics-librato):
-
-**Note**: the client included with this repository under the `librato` package
-has been deprecated and moved to the repository linked above.
-
-```go
-import "github.com/mihasya/go-metrics-librato"
-
-go librato.Librato(metrics.DefaultRegistry,
-    10e9,                  // interval
-    "example@example.com", // account owner email address
-    "token",               // Librato API token
-    "hostname",            // source
-    []float64{0.95},       // percentiles to send
-    time.Millisecond,      // time unit
-)
-```
-
-Periodically emit every metric to StatHat:
-
-```go
-import "github.com/rcrowley/go-metrics/stathat"
-
-go stathat.Stathat(metrics.DefaultRegistry, 10e9, "example@example.com")
-```
-
-Installation
-------------
-
-```sh
-go get github.com/rcrowley/go-metrics
-```
-
-StatHat support additionally requires their Go client:
-
-```sh
-go get github.com/stathat/go
-```
-
-Publishing Metrics
-------------------
-
-Clients are available for the following destinations:
-
-* Librato - [https://github.com/mihasya/go-metrics-librato](https://github.com/mihasya/go-metrics-librato)
-* Graphite - [https://github.com/cyberdelia/go-metrics-graphite](https://github.com/cyberdelia/go-metrics-graphite)
-* InfluxDB - [https://github.com/vrischmann/go-metrics-influxdb](https://github.com/vrischmann/go-metrics-influxdb)

Godeps/_workspace/src/github.com/rcrowley/go-metrics/cmd/metrics-bench/metrics-bench.go

@@ -1,20 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"github.com/rcrowley/go-metrics"
-	"time"
-)
-
-func main() {
-	r := metrics.NewRegistry()
-	for i := 0; i < 10000; i++ {
-		r.Register(fmt.Sprintf("counter-%d", i), metrics.NewCounter())
-		r.Register(fmt.Sprintf("gauge-%d", i), metrics.NewGauge())
-		r.Register(fmt.Sprintf("gaugefloat64-%d", i), metrics.NewGaugeFloat64())
-		r.Register(fmt.Sprintf("histogram-uniform-%d", i), metrics.NewHistogram(metrics.NewUniformSample(1028)))
-		r.Register(fmt.Sprintf("histogram-exp-%d", i), metrics.NewHistogram(metrics.NewExpDecaySample(1028, 0.015)))
-		r.Register(fmt.Sprintf("meter-%d", i), metrics.NewMeter())
-	}
-	time.Sleep(600e9)
-}

Godeps/_workspace/src/github.com/rcrowley/go-metrics/cmd/metrics-example/metrics-example.go

@@ -1,154 +0,0 @@
-package main
-
-import (
-	"errors"
-	"github.com/rcrowley/go-metrics"
-	// "github.com/rcrowley/go-metrics/stathat"
-	"log"
-	"math/rand"
-	"os"
-	// "syslog"
-	"time"
-)
-
-const fanout = 10
-
-func main() {
-
-	r := metrics.NewRegistry()
-
-	c := metrics.NewCounter()
-	r.Register("foo", c)
-	for i := 0; i < fanout; i++ {
-		go func() {
-			for {
-				c.Dec(19)
-				time.Sleep(300e6)
-			}
-		}()
-		go func() {
-			for {
-				c.Inc(47)
-				time.Sleep(400e6)
-			}
-		}()
-	}
-
-	g := metrics.NewGauge()
-	r.Register("bar", g)
-	for i := 0; i < fanout; i++ {
-		go func() {
-			for {
-				g.Update(19)
-				time.Sleep(300e6)
-			}
-		}()
-		go func() {
-			for {
-				g.Update(47)
-				time.Sleep(400e6)
-			}
-		}()
-	}
-
-	gf := metrics.NewGaugeFloat64()
-	r.Register("barfloat64", gf)
-	for i := 0; i < fanout; i++ {
-		go func() {
-			for {
-				g.Update(19.0)
-				time.Sleep(300e6)
-			}
-		}()
-		go func() {
-			for {
-				g.Update(47.0)
-				time.Sleep(400e6)
-			}
-		}()
-	}
-
-	hc := metrics.NewHealthcheck(func(h metrics.Healthcheck) {
-		if 0 < rand.Intn(2) {
-			h.Healthy()
-		} else {
-			h.Unhealthy(errors.New("baz"))
-		}
-	})
-	r.Register("baz", hc)
-
-	s := metrics.NewExpDecaySample(1028, 0.015)
-	//s := metrics.NewUniformSample(1028)
-	h := metrics.NewHistogram(s)
-	r.Register("bang", h)
-	for i := 0; i < fanout; i++ {
-		go func() {
-			for {
-				h.Update(19)
-				time.Sleep(300e6)
-			}
-		}()
-		go func() {
-			for {
-				h.Update(47)
-				time.Sleep(400e6)
-			}
-		}()
-	}
-
-	m := metrics.NewMeter()
-	r.Register("quux", m)
-	for i := 0; i < fanout; i++ {
-		go func() {
-			for {
-				m.Mark(19)
-				time.Sleep(300e6)
-			}
-		}()
-		go func() {
-			for {
-				m.Mark(47)
-				time.Sleep(400e6)
-			}
-		}()
-	}
-
-	t := metrics.NewTimer()
-	r.Register("hooah", t)
-	for i := 0; i < fanout; i++ {
-		go func() {
-			for {
-				t.Time(func() { time.Sleep(300e6) })
-			}
-		}()
-		go func() {
-			for {
-				t.Time(func() { time.Sleep(400e6) })
-			}
-		}()
-	}
-
-	metrics.RegisterDebugGCStats(r)
-	go metrics.CaptureDebugGCStats(r, 5e9)
-
-	metrics.RegisterRuntimeMemStats(r)
-	go metrics.CaptureRuntimeMemStats(r, 5e9)
-
-	metrics.Log(r, 60e9, log.New(os.Stderr, "metrics: ", log.Lmicroseconds))
-
-	/*
-		w, err := syslog.Dial("unixgram", "/dev/log", syslog.LOG_INFO, "metrics")
-		if nil != err { log.Fatalln(err) }
-		metrics.Syslog(r, 60e9, w)
-	*/
-
-	/*
-		addr, _ := net.ResolveTCPAddr("tcp", "127.0.0.1:2003")
-		metrics.Graphite(r, 10e9, "metrics", addr)
-	*/
-
-	/*
-		stathat.Stathat(r, 10e9, "example@example.com")
-	*/
-
-}

Godeps/_workspace/src/github.com/rcrowley/go-metrics/cmd/never-read/never-read.go

@@ -1,22 +0,0 @@
-package main
-
-import (
-	"log"
-	"net"
-)
-
-func main() {
-	addr, _ := net.ResolveTCPAddr("tcp", "127.0.0.1:2003")
-	l, err := net.ListenTCP("tcp", addr)
-	if nil != err {
-		log.Fatalln(err)
-	}
-	log.Println("listening", l.Addr())
-	for {
-		c, err := l.AcceptTCP()
-		if nil != err {
-			log.Fatalln(err)
-		}
-		log.Println("accepted", c.RemoteAddr())
-	}
-}

Godeps/_workspace/src/github.com/rcrowley/go-metrics/counter.go

@@ -1,112 +0,0 @@
-package metrics
-
-import "sync/atomic"
-
-// Counters hold an int64 value that can be incremented and decremented.
-type Counter interface {
-	Clear()
-	Count() int64
-	Dec(int64)
-	Inc(int64)
-	Snapshot() Counter
-}
-
-// GetOrRegisterCounter returns an existing Counter or constructs and registers
-// a new StandardCounter.
-func GetOrRegisterCounter(name string, r Registry) Counter {
-	if nil == r {
-		r = DefaultRegistry
-	}
-	return r.GetOrRegister(name, NewCounter).(Counter)
-}
-
-// NewCounter constructs a new StandardCounter.
-func NewCounter() Counter {
-	if UseNilMetrics {
-		return NilCounter{}
-	}
-	return &StandardCounter{0}
-}
-
-// NewRegisteredCounter constructs and registers a new StandardCounter.
-func NewRegisteredCounter(name string, r Registry) Counter {
-	c := NewCounter()
-	if nil == r {
-		r = DefaultRegistry
-	}
-	r.Register(name, c)
-	return c
-}
-
-// CounterSnapshot is a read-only copy of another Counter.
-type CounterSnapshot int64
-
-// Clear panics.
-func (CounterSnapshot) Clear() {
-	panic("Clear called on a CounterSnapshot")
-}
-
-// Count returns the count at the time the snapshot was taken.
-func (c CounterSnapshot) Count() int64 { return int64(c) }
-
-// Dec panics.
-func (CounterSnapshot) Dec(int64) {
-	panic("Dec called on a CounterSnapshot")
-}
-
-// Inc panics.
-func (CounterSnapshot) Inc(int64) {
-	panic("Inc called on a CounterSnapshot")
-}
-
-// Snapshot returns the snapshot.
-func (c CounterSnapshot) Snapshot() Counter { return c }
-
-// NilCounter is a no-op Counter.
-type NilCounter struct{}
-
-// Clear is a no-op.
-func (NilCounter) Clear() {}
-
-// Count is a no-op.
-func (NilCounter) Count() int64 { return 0 }
-
-// Dec is a no-op.
-func (NilCounter) Dec(i int64) {}
-
-// Inc is a no-op.
-func (NilCounter) Inc(i int64) {}
-
-// Snapshot is a no-op.
-func (NilCounter) Snapshot() Counter { return NilCounter{} }
-
-// StandardCounter is the standard implementation of a Counter and uses the
-// sync/atomic package to manage a single int64 value.
-type StandardCounter struct {
-	count int64
-}
-
-// Clear sets the counter to zero.
-func (c *StandardCounter) Clear() {
-	atomic.StoreInt64(&c.count, 0)
-}
-
-// Count returns the current count.
-func (c *StandardCounter) Count() int64 {
-	return atomic.LoadInt64(&c.count)
-}
-
-// Dec decrements the counter by the given amount.
-func (c *StandardCounter) Dec(i int64) {
-	atomic.AddInt64(&c.count, -i)
-}
-
-// Inc increments the counter by the given amount.
-func (c *StandardCounter) Inc(i int64) {
-	atomic.AddInt64(&c.count, i)
-}
-
-// Snapshot returns a read-only copy of the counter.
-func (c *StandardCounter) Snapshot() Counter {
-	return CounterSnapshot(c.Count())
-}

Godeps/_workspace/src/github.com/rcrowley/go-metrics/debug.go

@@ -1,76 +0,0 @@
-package metrics
-
-import (
-	"runtime/debug"
-	"time"
-)
-
-var (
-	debugMetrics struct {
-		GCStats struct {
-			LastGC Gauge
-			NumGC  Gauge
-			Pause  Histogram
-			//PauseQuantiles Histogram
-			PauseTotal Gauge
-		}
-		ReadGCStats Timer
-	}
-	gcStats debug.GCStats
-)
-
-// Capture new values for the Go garbage collector statistics exported in
-// debug.GCStats.  This is designed to be called as a goroutine.
-func CaptureDebugGCStats(r Registry, d time.Duration) {
-	for _ = range time.Tick(d) {
-		CaptureDebugGCStatsOnce(r)
-	}
-}
-
-// Capture new values for the Go garbage collector statistics exported in
-// debug.GCStats.  This is designed to be called in a background goroutine.
-// Giving a registry which has not been given to RegisterDebugGCStats will
-// panic.
-//
-// Be careful (but much less so) with this because debug.ReadGCStats calls
-// the C function runtime·lock(runtime·mheap) which, while not a stop-the-world
-// operation, isn't something you want to be doing all the time.
-func CaptureDebugGCStatsOnce(r Registry) {
-	lastGC := gcStats.LastGC
-	t := time.Now()
-	debug.ReadGCStats(&gcStats)
-	debugMetrics.ReadGCStats.UpdateSince(t)
-
-	debugMetrics.GCStats.LastGC.Update(int64(gcStats.LastGC.UnixNano()))
-	debugMetrics.GCStats.NumGC.Update(int64(gcStats.NumGC))
-	if lastGC != gcStats.LastGC && 0 < len(gcStats.Pause) {
-		debugMetrics.GCStats.Pause.Update(int64(gcStats.Pause[0]))
-	}
-	//debugMetrics.GCStats.PauseQuantiles.Update(gcStats.PauseQuantiles)
-	debugMetrics.GCStats.PauseTotal.Update(int64(gcStats.PauseTotal))
-}
-
-// Register metrics for the Go garbage collector statistics exported in
-// debug.GCStats.  The metrics are named by their fully-qualified Go symbols,
-// i.e. debug.GCStats.PauseTotal.
-func RegisterDebugGCStats(r Registry) {
-	debugMetrics.GCStats.LastGC = NewGauge()
-	debugMetrics.GCStats.NumGC = NewGauge()
-	debugMetrics.GCStats.Pause = NewHistogram(NewExpDecaySample(1028, 0.015))
-	//debugMetrics.GCStats.PauseQuantiles = NewHistogram(NewExpDecaySample(1028, 0.015))
-	debugMetrics.GCStats.PauseTotal = NewGauge()
-	debugMetrics.ReadGCStats = NewTimer()
-
-	r.Register("debug.GCStats.LastGC", debugMetrics.GCStats.LastGC)
-	r.Register("debug.GCStats.NumGC", debugMetrics.GCStats.NumGC)
-	r.Register("debug.GCStats.Pause", debugMetrics.GCStats.Pause)
-	//r.Register("debug.GCStats.PauseQuantiles", debugMetrics.GCStats.PauseQuantiles)
-	r.Register("debug.GCStats.PauseTotal", debugMetrics.GCStats.PauseTotal)
-	r.Register("debug.ReadGCStats", debugMetrics.ReadGCStats)
-}
-
-// Allocate an initial slice for gcStats.Pause to avoid allocations during
-// normal operation.
-func init() {
-	gcStats.Pause = make([]time.Duration, 11)
-}

Godeps/_workspace/src/github.com/rcrowley/go-metrics/ewma.go

@@ -1,118 +0,0 @@
-package metrics
-
-import (
-	"math"
-	"sync"
-	"sync/atomic"
-)
-
-// EWMAs continuously calculate an exponentially-weighted moving average
-// based on an outside source of clock ticks.
-type EWMA interface {
-	Rate() float64
-	Snapshot() EWMA
-	Tick()
-	Update(int64)
-}
-
-// NewEWMA constructs a new EWMA with the given alpha.
-func NewEWMA(alpha float64) EWMA {
-	if UseNilMetrics {
-		return NilEWMA{}
-	}
-	return &StandardEWMA{alpha: alpha}
-}
-
-// NewEWMA1 constructs a new EWMA for a one-minute moving average.
-func NewEWMA1() EWMA {
-	return NewEWMA(1 - math.Exp(-5.0/60.0/1))
-}
-
-// NewEWMA5 constructs a new EWMA for a five-minute moving average.
-func NewEWMA5() EWMA {
-	return NewEWMA(1 - math.Exp(-5.0/60.0/5))
-}
-
-// NewEWMA15 constructs a new EWMA for a fifteen-minute moving average.
-func NewEWMA15() EWMA {
-	return NewEWMA(1 - math.Exp(-5.0/60.0/15))
-}
-
-// EWMASnapshot is a read-only copy of another EWMA.
-type EWMASnapshot float64
-
-// Rate returns the rate of events per second at the time the snapshot was
-// taken.
-func (a EWMASnapshot) Rate() float64 { return float64(a) }
-
-// Snapshot returns the snapshot.
-func (a EWMASnapshot) Snapshot() EWMA { return a }
-
-// Tick panics.
-func (EWMASnapshot) Tick() {
-	panic("Tick called on an EWMASnapshot")
-}
-
-// Update panics.
-func (EWMASnapshot) Update(int64) {
-	panic("Update called on an EWMASnapshot")
-}
-
-// NilEWMA is a no-op EWMA.
-type NilEWMA struct{}
-
-// Rate is a no-op.
-func (NilEWMA) Rate() float64 { return 0.0 }
-
-// Snapshot is a no-op.
-func (NilEWMA) Snapshot() EWMA { return NilEWMA{} }
-
-// Tick is a no-op.
-func (NilEWMA) Tick() {}
-
-// Update is a no-op.
-func (NilEWMA) Update(n int64) {}
-
-// StandardEWMA is the standard implementation of an EWMA and tracks the number
-// of uncounted events and processes them on each tick.  It uses the
-// sync/atomic package to manage uncounted events.
-type StandardEWMA struct {
-	uncounted int64 // /!\ this should be the first member to ensure 64-bit alignment
-	alpha     float64
-	rate      float64
-	init      bool
-	mutex     sync.Mutex
-}
-
-// Rate returns the moving average rate of events per second.
-func (a *StandardEWMA) Rate() float64 {
-	a.mutex.Lock()
-	defer a.mutex.Unlock()
-	return a.rate * float64(1e9)
-}
-
-// Snapshot returns a read-only copy of the EWMA.
-func (a *StandardEWMA) Snapshot() EWMA {
-	return EWMASnapshot(a.Rate())
-}
-
-// Tick ticks the clock to update the moving average.  It assumes it is called
-// every five seconds.
-func (a *StandardEWMA) Tick() {
-	count := atomic.LoadInt64(&a.uncounted)
-	atomic.AddInt64(&a.uncounted, -count)
-	instantRate := float64(count) / float64(5e9)
-	a.mutex.Lock()
-	defer a.mutex.Unlock()
-	if a.init {
-		a.rate += a.alpha * (instantRate - a.rate)
-	} else {
-		a.init = true
-		a.rate = instantRate
-	}
-}
-
-// Update adds n uncounted events.
-func (a *StandardEWMA) Update(n int64) {
-	atomic.AddInt64(&a.uncounted, n)
-}