summaryrefslogtreecommitdiff
path: root/vendor/golang.org/x/text/encoding/unicode
diff options
context:
space:
mode:
Diffstat (limited to 'vendor/golang.org/x/text/encoding/unicode')
-rw-r--r--vendor/golang.org/x/text/encoding/unicode/unicode.go2
-rw-r--r--vendor/golang.org/x/text/encoding/unicode/unicode_test.go499
-rw-r--r--vendor/golang.org/x/text/encoding/unicode/utf32/utf32.go296
-rw-r--r--vendor/golang.org/x/text/encoding/unicode/utf32/utf32_test.go248
4 files changed, 1 insertions, 1044 deletions
diff --git a/vendor/golang.org/x/text/encoding/unicode/unicode.go b/vendor/golang.org/x/text/encoding/unicode/unicode.go
index 579cadf..4850ff3 100644
--- a/vendor/golang.org/x/text/encoding/unicode/unicode.go
+++ b/vendor/golang.org/x/text/encoding/unicode/unicode.go
@@ -145,7 +145,7 @@ func (utf8Decoder) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err e
// and consumed in a greater context that implies a certain endianness, use
// IgnoreBOM. Otherwise, use ExpectBOM and always produce and consume a BOM.
//
-// In the language of http://www.unicode.org/faq/utf_bom.html#bom10, IgnoreBOM
+// In the language of https://www.unicode.org/faq/utf_bom.html#bom10, IgnoreBOM
// corresponds to "Where the precise type of the data stream is known... the
// BOM should not be used" and ExpectBOM corresponds to "A particular
// protocol... may require use of the BOM".
diff --git a/vendor/golang.org/x/text/encoding/unicode/unicode_test.go b/vendor/golang.org/x/text/encoding/unicode/unicode_test.go
deleted file mode 100644
index 51b4712..0000000
--- a/vendor/golang.org/x/text/encoding/unicode/unicode_test.go
+++ /dev/null
@@ -1,499 +0,0 @@
-// Copyright 2015 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 unicode
-
-import (
- "testing"
-
- "golang.org/x/text/encoding"
- "golang.org/x/text/encoding/charmap"
- "golang.org/x/text/encoding/internal/enctest"
- "golang.org/x/text/transform"
-)
-
-func TestBasics(t *testing.T) {
- testCases := []struct {
- e encoding.Encoding
- encPrefix string
- encSuffix string
- encoded string
- utf8 string
- }{{
- e: utf16BEIB,
- encoded: "\x00\x57\x00\xe4\xd8\x35\xdd\x65",
- utf8: "\x57\u00e4\U0001d565",
- }, {
- e: utf16BEEB,
- encPrefix: "\xfe\xff",
- encoded: "\x00\x57\x00\xe4\xd8\x35\xdd\x65",
- utf8: "\x57\u00e4\U0001d565",
- }, {
- e: utf16LEIB,
- encoded: "\x57\x00\xe4\x00\x35\xd8\x65\xdd",
- utf8: "\x57\u00e4\U0001d565",
- }, {
- e: utf16LEEB,
- encPrefix: "\xff\xfe",
- encoded: "\x57\x00\xe4\x00\x35\xd8\x65\xdd",
- utf8: "\x57\u00e4\U0001d565",
- }}
-
- for _, tc := range testCases {
- enctest.TestEncoding(t, tc.e, tc.encoded, tc.utf8, tc.encPrefix, tc.encSuffix)
- }
-}
-
-func TestFiles(t *testing.T) {
- enctest.TestFile(t, UTF8)
- enctest.TestFile(t, utf16LEIB)
-}
-
-func BenchmarkEncoding(b *testing.B) {
- enctest.Benchmark(b, UTF8)
- enctest.Benchmark(b, utf16LEIB)
-}
-
-var (
- utf16LEIB = UTF16(LittleEndian, IgnoreBOM) // UTF-16LE (atypical interpretation)
- utf16LEUB = UTF16(LittleEndian, UseBOM) // UTF-16, LE
- utf16LEEB = UTF16(LittleEndian, ExpectBOM) // UTF-16, LE, Expect
- utf16BEIB = UTF16(BigEndian, IgnoreBOM) // UTF-16BE (atypical interpretation)
- utf16BEUB = UTF16(BigEndian, UseBOM) // UTF-16 default
- utf16BEEB = UTF16(BigEndian, ExpectBOM) // UTF-16 Expect
-)
-
-func TestUTF16(t *testing.T) {
- testCases := []struct {
- desc string
- src string
- notEOF bool // the inverse of atEOF
- sizeDst int
- want string
- nSrc int
- err error
- t transform.Transformer
- }{{
- desc: "utf-16 IgnoreBOM dec: empty string",
- t: utf16BEIB.NewDecoder(),
- }, {
- desc: "utf-16 UseBOM dec: empty string",
- t: utf16BEUB.NewDecoder(),
- }, {
- desc: "utf-16 ExpectBOM dec: empty string",
- err: ErrMissingBOM,
- t: utf16BEEB.NewDecoder(),
- }, {
- desc: "utf-16 dec: BOM determines encoding BE (RFC 2781:3.3)",
- src: "\xFE\xFF\xD8\x08\xDF\x45\x00\x3D\x00\x52\x00\x61",
- sizeDst: 100,
- want: "\U00012345=Ra",
- nSrc: 12,
- t: utf16BEUB.NewDecoder(),
- }, {
- desc: "utf-16 dec: BOM determines encoding LE (RFC 2781:3.3)",
- src: "\xFF\xFE\x08\xD8\x45\xDF\x3D\x00\x52\x00\x61\x00",
- sizeDst: 100,
- want: "\U00012345=Ra",
- nSrc: 12,
- t: utf16LEUB.NewDecoder(),
- }, {
- desc: "utf-16 dec: BOM determines encoding LE, change default (RFC 2781:3.3)",
- src: "\xFF\xFE\x08\xD8\x45\xDF\x3D\x00\x52\x00\x61\x00",
- sizeDst: 100,
- want: "\U00012345=Ra",
- nSrc: 12,
- t: utf16BEUB.NewDecoder(),
- }, {
- desc: "utf-16 dec: Fail on missing BOM when required",
- src: "\x08\xD8\x45\xDF\x3D\x00\xFF\xFE\xFE\xFF\x00\x52\x00\x61",
- sizeDst: 100,
- want: "",
- nSrc: 0,
- err: ErrMissingBOM,
- t: utf16BEEB.NewDecoder(),
- }, {
- desc: "utf-16 dec: SHOULD interpret text as big-endian when BOM not present (RFC 2781:4.3)",
- src: "\xD8\x08\xDF\x45\x00\x3D\x00\x52\x00\x61",
- sizeDst: 100,
- want: "\U00012345=Ra",
- nSrc: 10,
- t: utf16BEUB.NewDecoder(),
- }, {
- // This is an error according to RFC 2781. But errors in RFC 2781 are
- // open to interpretations, so I guess this is fine.
- desc: "utf-16le dec: incorrect BOM is an error (RFC 2781:4.1)",
- src: "\xFE\xFF\x08\xD8\x45\xDF\x3D\x00\x52\x00\x61\x00",
- sizeDst: 100,
- want: "\uFFFE\U00012345=Ra",
- nSrc: 12,
- t: utf16LEIB.NewDecoder(),
- }, {
- desc: "utf-16 enc: SHOULD write BOM (RFC 2781:3.3)",
- src: "\U00012345=Ra",
- sizeDst: 100,
- want: "\xFF\xFE\x08\xD8\x45\xDF\x3D\x00\x52\x00\x61\x00",
- nSrc: 7,
- t: utf16LEUB.NewEncoder(),
- }, {
- desc: "utf-16 enc: SHOULD write BOM (RFC 2781:3.3)",
- src: "\U00012345=Ra",
- sizeDst: 100,
- want: "\xFE\xFF\xD8\x08\xDF\x45\x00\x3D\x00\x52\x00\x61",
- nSrc: 7,
- t: utf16BEUB.NewEncoder(),
- }, {
- desc: "utf-16le enc: MUST NOT write BOM (RFC 2781:3.3)",
- src: "\U00012345=Ra",
- sizeDst: 100,
- want: "\x08\xD8\x45\xDF\x3D\x00\x52\x00\x61\x00",
- nSrc: 7,
- t: utf16LEIB.NewEncoder(),
- }, {
- desc: "utf-16be dec: incorrect UTF-16: odd bytes",
- src: "\x00",
- sizeDst: 100,
- want: "\uFFFD",
- nSrc: 1,
- t: utf16BEIB.NewDecoder(),
- }, {
- desc: "utf-16be dec: unpaired surrogate, odd bytes",
- src: "\xD8\x45\x00",
- sizeDst: 100,
- want: "\uFFFD\uFFFD",
- nSrc: 3,
- t: utf16BEIB.NewDecoder(),
- }, {
- desc: "utf-16be dec: unpaired low surrogate + valid text",
- src: "\xD8\x45\x00a",
- sizeDst: 100,
- want: "\uFFFDa",
- nSrc: 4,
- t: utf16BEIB.NewDecoder(),
- }, {
- desc: "utf-16be dec: unpaired low surrogate + valid text + single byte",
- src: "\xD8\x45\x00ab",
- sizeDst: 100,
- want: "\uFFFDa\uFFFD",
- nSrc: 5,
- t: utf16BEIB.NewDecoder(),
- }, {
- desc: "utf-16le dec: unpaired high surrogate",
- src: "\x00\x00\x00\xDC\x12\xD8",
- sizeDst: 100,
- want: "\x00\uFFFD\uFFFD",
- nSrc: 6,
- t: utf16LEIB.NewDecoder(),
- }, {
- desc: "utf-16be dec: two unpaired low surrogates",
- src: "\xD8\x45\xD8\x12",
- sizeDst: 100,
- want: "\uFFFD\uFFFD",
- nSrc: 4,
- t: utf16BEIB.NewDecoder(),
- }, {
- desc: "utf-16be dec: short dst",
- src: "\x00a",
- sizeDst: 0,
- want: "",
- nSrc: 0,
- t: utf16BEIB.NewDecoder(),
- err: transform.ErrShortDst,
- }, {
- desc: "utf-16be dec: short dst surrogate",
- src: "\xD8\xF5\xDC\x12",
- sizeDst: 3,
- want: "",
- nSrc: 0,
- t: utf16BEIB.NewDecoder(),
- err: transform.ErrShortDst,
- }, {
- desc: "utf-16be dec: short dst trailing byte",
- src: "\x00",
- sizeDst: 2,
- want: "",
- nSrc: 0,
- t: utf16BEIB.NewDecoder(),
- err: transform.ErrShortDst,
- }, {
- desc: "utf-16be dec: short src",
- src: "\x00",
- notEOF: true,
- sizeDst: 3,
- want: "",
- nSrc: 0,
- t: utf16BEIB.NewDecoder(),
- err: transform.ErrShortSrc,
- }, {
- desc: "utf-16 enc",
- src: "\U00012345=Ra",
- sizeDst: 100,
- want: "\xFE\xFF\xD8\x08\xDF\x45\x00\x3D\x00\x52\x00\x61",
- nSrc: 7,
- t: utf16BEUB.NewEncoder(),
- }, {
- desc: "utf-16 enc: short dst normal",
- src: "\U00012345=Ra",
- sizeDst: 9,
- want: "\xD8\x08\xDF\x45\x00\x3D\x00\x52",
- nSrc: 6,
- t: utf16BEIB.NewEncoder(),
- err: transform.ErrShortDst,
- }, {
- desc: "utf-16 enc: short dst surrogate",
- src: "\U00012345=Ra",
- sizeDst: 3,
- want: "",
- nSrc: 0,
- t: utf16BEIB.NewEncoder(),
- err: transform.ErrShortDst,
- }, {
- desc: "utf-16 enc: short src",
- src: "\U00012345=Ra\xC2",
- notEOF: true,
- sizeDst: 100,
- want: "\xD8\x08\xDF\x45\x00\x3D\x00\x52\x00\x61",
- nSrc: 7,
- t: utf16BEIB.NewEncoder(),
- err: transform.ErrShortSrc,
- }, {
- desc: "utf-16be dec: don't change byte order mid-stream",
- src: "\xFE\xFF\xD8\x08\xDF\x45\x00\x3D\xFF\xFE\x00\x52\x00\x61",
- sizeDst: 100,
- want: "\U00012345=\ufffeRa",
- nSrc: 14,
- t: utf16BEUB.NewDecoder(),
- }, {
- desc: "utf-16le dec: don't change byte order mid-stream",
- src: "\xFF\xFE\x08\xD8\x45\xDF\x3D\x00\xFF\xFE\xFE\xFF\x52\x00\x61\x00",
- sizeDst: 100,
- want: "\U00012345=\ufeff\ufffeRa",
- nSrc: 16,
- t: utf16LEUB.NewDecoder(),
- }}
- for i, tc := range testCases {
- b := make([]byte, tc.sizeDst)
- nDst, nSrc, err := tc.t.Transform(b, []byte(tc.src), !tc.notEOF)
- if err != tc.err {
- t.Errorf("%d:%s: error was %v; want %v", i, tc.desc, err, tc.err)
- }
- if got := string(b[:nDst]); got != tc.want {
- t.Errorf("%d:%s: result was %q: want %q", i, tc.desc, got, tc.want)
- }
- if nSrc != tc.nSrc {
- t.Errorf("%d:%s: nSrc was %d; want %d", i, tc.desc, nSrc, tc.nSrc)
- }
- }
-}
-
-func TestUTF8Decoder(t *testing.T) {
- testCases := []struct {
- desc string
- src string
- notEOF bool // the inverse of atEOF
- sizeDst int
- want string
- nSrc int
- err error
- }{{
- desc: "empty string, empty dest buffer",
- }, {
- desc: "empty string",
- sizeDst: 8,
- }, {
- desc: "empty string, streaming",
- notEOF: true,
- sizeDst: 8,
- }, {
- desc: "ascii",
- src: "abcde",
- sizeDst: 8,
- want: "abcde",
- nSrc: 5,
- }, {
- desc: "ascii and error",
- src: "ab\x80de",
- sizeDst: 7,
- want: "ab\ufffdde",
- nSrc: 5,
- }, {
- desc: "valid two-byte sequence",
- src: "a\u0300bc",
- sizeDst: 7,
- want: "a\u0300bc",
- nSrc: 5,
- }, {
- desc: "valid three-byte sequence",
- src: "a\u0300中",
- sizeDst: 7,
- want: "a\u0300中",
- nSrc: 6,
- }, {
- desc: "valid four-byte sequence",
- src: "a中\U00016F50",
- sizeDst: 8,
- want: "a中\U00016F50",
- nSrc: 8,
- }, {
- desc: "short source buffer",
- src: "abc\xf0\x90",
- notEOF: true,
- sizeDst: 10,
- want: "abc",
- nSrc: 3,
- err: transform.ErrShortSrc,
- }, {
- // We don't check for the maximal subpart of an ill-formed subsequence
- // at the end of an open segment.
- desc: "complete invalid that looks like short at end",
- src: "abc\xf0\x80",
- notEOF: true,
- sizeDst: 10,
- want: "abc", // instead of "abc\ufffd\ufffd",
- nSrc: 3,
- err: transform.ErrShortSrc,
- }, {
- desc: "incomplete sequence at end",
- src: "a\x80bc\xf0\x90",
- sizeDst: 9,
- want: "a\ufffdbc\ufffd",
- nSrc: 6,
- }, {
- desc: "invalid second byte",
- src: "abc\xf0dddd",
- sizeDst: 10,
- want: "abc\ufffddddd",
- nSrc: 8,
- }, {
- desc: "invalid second byte at end",
- src: "abc\xf0d",
- sizeDst: 10,
- want: "abc\ufffdd",
- nSrc: 5,
- }, {
- desc: "invalid third byte",
- src: "a\u0300bc\xf0\x90dddd",
- sizeDst: 12,
- want: "a\u0300bc\ufffddddd",
- nSrc: 11,
- }, {
- desc: "invalid third byte at end",
- src: "a\u0300bc\xf0\x90d",
- sizeDst: 12,
- want: "a\u0300bc\ufffdd",
- nSrc: 8,
- }, {
- desc: "invalid fourth byte, tight buffer",
- src: "a\u0300bc\xf0\x90\x80d",
- sizeDst: 9,
- want: "a\u0300bc\ufffdd",
- nSrc: 9,
- }, {
- desc: "invalid fourth byte at end",
- src: "a\u0300bc\xf0\x90\x80",
- sizeDst: 8,
- want: "a\u0300bc\ufffd",
- nSrc: 8,
- }, {
- desc: "invalid fourth byte and short four byte sequence",
- src: "a\u0300bc\xf0\x90\x80\xf0\x90\x80",
- notEOF: true,
- sizeDst: 20,
- want: "a\u0300bc\ufffd",
- nSrc: 8,
- err: transform.ErrShortSrc,
- }, {
- desc: "valid four-byte sequence overflowing short buffer",
- src: "a\u0300bc\xf0\x90\x80\x80",
- notEOF: true,
- sizeDst: 8,
- want: "a\u0300bc",
- nSrc: 5,
- err: transform.ErrShortDst,
- }, {
- desc: "invalid fourth byte at end short, but short dst",
- src: "a\u0300bc\xf0\x90\x80\xf0\x90\x80",
- notEOF: true,
- sizeDst: 8,
- // More bytes would fit in the buffer, but this seems to require a more
- // complicated and slower algorithm.
- want: "a\u0300bc", // instead of "a\u0300bc"
- nSrc: 5,
- err: transform.ErrShortDst,
- }, {
- desc: "short dst for error",
- src: "abc\x80",
- notEOF: true,
- sizeDst: 5,
- want: "abc",
- nSrc: 3,
- err: transform.ErrShortDst,
- }, {
- desc: "adjusting short dst buffer",
- src: "abc\x80ef",
- notEOF: true,
- sizeDst: 6,
- want: "abc\ufffd",
- nSrc: 4,
- err: transform.ErrShortDst,
- }}
- tr := UTF8.NewDecoder()
- for i, tc := range testCases {
- b := make([]byte, tc.sizeDst)
- nDst, nSrc, err := tr.Transform(b, []byte(tc.src), !tc.notEOF)
- if err != tc.err {
- t.Errorf("%d:%s: error was %v; want %v", i, tc.desc, err, tc.err)
- }
- if got := string(b[:nDst]); got != tc.want {
- t.Errorf("%d:%s: result was %q: want %q", i, tc.desc, got, tc.want)
- }
- if nSrc != tc.nSrc {
- t.Errorf("%d:%s: nSrc was %d; want %d", i, tc.desc, nSrc, tc.nSrc)
- }
- }
-}
-
-func TestBOMOverride(t *testing.T) {
- dec := BOMOverride(charmap.CodePage437.NewDecoder())
- dst := make([]byte, 100)
- for i, tc := range []struct {
- src string
- atEOF bool
- dst string
- nSrc int
- err error
- }{
- 0: {"H\x82ll\x93", true, "Héllô", 5, nil},
- 1: {"\uFEFFHéllö", true, "Héllö", 10, nil},
- 2: {"\xFE\xFF\x00H\x00e\x00l\x00l\x00o", true, "Hello", 12, nil},
- 3: {"\xFF\xFEH\x00e\x00l\x00l\x00o\x00", true, "Hello", 12, nil},
- 4: {"\uFEFF", true, "", 3, nil},
- 5: {"\xFE\xFF", true, "", 2, nil},
- 6: {"\xFF\xFE", true, "", 2, nil},
- 7: {"\xEF\xBB", true, "\u2229\u2557", 2, nil},
- 8: {"\xEF", true, "\u2229", 1, nil},
- 9: {"", true, "", 0, nil},
- 10: {"\xFE", true, "\u25a0", 1, nil},
- 11: {"\xFF", true, "\u00a0", 1, nil},
- 12: {"\xEF\xBB", false, "", 0, transform.ErrShortSrc},
- 13: {"\xEF", false, "", 0, transform.ErrShortSrc},
- 14: {"", false, "", 0, transform.ErrShortSrc},
- 15: {"\xFE", false, "", 0, transform.ErrShortSrc},
- 16: {"\xFF", false, "", 0, transform.ErrShortSrc},
- 17: {"\xFF\xFE", false, "", 0, transform.ErrShortSrc},
- } {
- dec.Reset()
- nDst, nSrc, err := dec.Transform(dst, []byte(tc.src), tc.atEOF)
- got := string(dst[:nDst])
- if nSrc != tc.nSrc {
- t.Errorf("%d: nSrc: got %d; want %d", i, nSrc, tc.nSrc)
- }
- if got != tc.dst {
- t.Errorf("%d: got %+q; want %+q", i, got, tc.dst)
- }
- if err != tc.err {
- t.Errorf("%d: error: got %v; want %v", i, err, tc.err)
- }
- }
-}
diff --git a/vendor/golang.org/x/text/encoding/unicode/utf32/utf32.go b/vendor/golang.org/x/text/encoding/unicode/utf32/utf32.go
deleted file mode 100644
index 48b2152..0000000
--- a/vendor/golang.org/x/text/encoding/unicode/utf32/utf32.go
+++ /dev/null
@@ -1,296 +0,0 @@
-// Copyright 2016 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 utf32 provides the UTF-32 Unicode encoding.
-//
-// Please note that support for UTF-32 is discouraged as it is a rare and
-// inefficient encoding, unfit for use as an interchange format. For use
-// on the web, the W3C strongly discourages its use
-// (https://www.w3.org/TR/html5/document-metadata.html#charset)
-// while WHATWG directly prohibits supporting it
-// (https://html.spec.whatwg.org/multipage/syntax.html#character-encodings).
-package utf32 // import "golang.org/x/text/encoding/unicode/utf32"
-
-import (
- "errors"
- "unicode/utf8"
-
- "golang.org/x/text/encoding"
- "golang.org/x/text/encoding/internal/identifier"
- "golang.org/x/text/transform"
-)
-
-// All lists a configuration for each IANA-defined UTF-32 variant.
-var All = []encoding.Encoding{
- UTF32(BigEndian, UseBOM),
- UTF32(BigEndian, IgnoreBOM),
- UTF32(LittleEndian, IgnoreBOM),
-}
-
-// ErrMissingBOM means that decoding UTF-32 input with ExpectBOM did not
-// find a starting byte order mark.
-var ErrMissingBOM = errors.New("encoding: missing byte order mark")
-
-// UTF32 returns a UTF-32 Encoding for the given default endianness and
-// byte order mark (BOM) policy.
-//
-// When decoding from UTF-32 to UTF-8, if the BOMPolicy is IgnoreBOM then
-// neither BOMs U+FEFF nor ill-formed code units 0xFFFE0000 in the input
-// stream will affect the endianness used for decoding. Instead BOMs will
-// be output as their standard UTF-8 encoding "\xef\xbb\xbf" while
-// 0xFFFE0000 code units will be output as "\xef\xbf\xbd", the standard
-// UTF-8 encoding for the Unicode replacement character. If the BOMPolicy
-// is UseBOM or ExpectBOM a starting BOM is not written to the UTF-8
-// output. Instead, it overrides the default endianness e for the remainder
-// of the transformation. Any subsequent BOMs U+FEFF or ill-formed code
-// units 0xFFFE0000 will not affect the endianness used, and will instead
-// be output as their standard UTF-8 (replacement) encodings. For UseBOM,
-// if there is no starting BOM, it will proceed with the default
-// Endianness. For ExpectBOM, in that case, the transformation will return
-// early with an ErrMissingBOM error.
-//
-// When encoding from UTF-8 to UTF-32, a BOM will be inserted at the start
-// of the output if the BOMPolicy is UseBOM or ExpectBOM. Otherwise, a BOM
-// will not be inserted. The UTF-8 input does not need to contain a BOM.
-//
-// There is no concept of a 'native' endianness. If the UTF-32 data is
-// produced and consumed in a greater context that implies a certain
-// endianness, use IgnoreBOM. Otherwise, use ExpectBOM and always produce
-// and consume a BOM.
-//
-// In the language of http://www.unicode.org/faq/utf_bom.html#bom10,
-// IgnoreBOM corresponds to "Where the precise type of the data stream is
-// known... the BOM should not be used" and ExpectBOM corresponds to "A
-// particular protocol... may require use of the BOM".
-func UTF32(e Endianness, b BOMPolicy) encoding.Encoding {
- return utf32Encoding{config{e, b}, mibValue[e][b&bomMask]}
-}
-
-// mibValue maps Endianness and BOMPolicy settings to MIB constants for UTF-32.
-// Note that some configurations map to the same MIB identifier.
-var mibValue = map[Endianness][numBOMValues]identifier.MIB{
- BigEndian: [numBOMValues]identifier.MIB{
- IgnoreBOM: identifier.UTF32BE,
- UseBOM: identifier.UTF32,
- },
- LittleEndian: [numBOMValues]identifier.MIB{
- IgnoreBOM: identifier.UTF32LE,
- UseBOM: identifier.UTF32,
- },
- // ExpectBOM is not widely used and has no valid MIB identifier.
-}
-
-// BOMPolicy is a UTF-32 encodings's byte order mark policy.
-type BOMPolicy uint8
-
-const (
- writeBOM BOMPolicy = 0x01
- acceptBOM BOMPolicy = 0x02
- requireBOM BOMPolicy = 0x04
- bomMask BOMPolicy = 0x07
-
- // HACK: numBOMValues == 8 triggers a bug in the 1.4 compiler (cannot have a
- // map of an array of length 8 of a type that is also used as a key or value
- // in another map). See golang.org/issue/11354.
- // TODO: consider changing this value back to 8 if the use of 1.4.* has
- // been minimized.
- numBOMValues = 8 + 1
-
- // IgnoreBOM means to ignore any byte order marks.
- IgnoreBOM BOMPolicy = 0
- // Unicode-compliant interpretation for UTF-32BE/LE.
-
- // UseBOM means that the UTF-32 form may start with a byte order mark,
- // which will be used to override the default encoding.
- UseBOM BOMPolicy = writeBOM | acceptBOM
- // Unicode-compliant interpretation for UTF-32.
-
- // ExpectBOM means that the UTF-32 form must start with a byte order mark,
- // which will be used to override the default encoding.
- ExpectBOM BOMPolicy = writeBOM | acceptBOM | requireBOM
- // Consistent with BOMPolicy definition in golang.org/x/text/encoding/unicode
-)
-
-// Endianness is a UTF-32 encoding's default endianness.
-type Endianness bool
-
-const (
- // BigEndian is UTF-32BE.
- BigEndian Endianness = false
- // LittleEndian is UTF-32LE.
- LittleEndian Endianness = true
-)
-
-type config struct {
- endianness Endianness
- bomPolicy BOMPolicy
-}
-
-type utf32Encoding struct {
- config
- mib identifier.MIB
-}
-
-func (u utf32Encoding) NewDecoder() *encoding.Decoder {
- return &encoding.Decoder{Transformer: &utf32Decoder{
- initial: u.config,
- current: u.config,
- }}
-}
-
-func (u utf32Encoding) NewEncoder() *encoding.Encoder {
- return &encoding.Encoder{Transformer: &utf32Encoder{
- endianness: u.endianness,
- initialBOMPolicy: u.bomPolicy,
- currentBOMPolicy: u.bomPolicy,
- }}
-}
-
-func (u utf32Encoding) ID() (mib identifier.MIB, other string) {
- return u.mib, ""
-}
-
-func (u utf32Encoding) String() string {
- e, b := "B", ""
- if u.endianness == LittleEndian {
- e = "L"
- }
- switch u.bomPolicy {
- case ExpectBOM:
- b = "Expect"
- case UseBOM:
- b = "Use"
- case IgnoreBOM:
- b = "Ignore"
- }
- return "UTF-32" + e + "E (" + b + " BOM)"
-}
-
-type utf32Decoder struct {
- initial config
- current config
-}
-
-func (u *utf32Decoder) Reset() {
- u.current = u.initial
-}
-
-func (u *utf32Decoder) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
- if len(src) == 0 {
- if atEOF && u.current.bomPolicy&requireBOM != 0 {
- return 0, 0, ErrMissingBOM
- }
- return 0, 0, nil
- }
- if u.current.bomPolicy&acceptBOM != 0 {
- if len(src) < 4 {
- return 0, 0, transform.ErrShortSrc
- }
- switch {
- case src[0] == 0x00 && src[1] == 0x00 && src[2] == 0xfe && src[3] == 0xff:
- u.current.endianness = BigEndian
- nSrc = 4
- case src[0] == 0xff && src[1] == 0xfe && src[2] == 0x00 && src[3] == 0x00:
- u.current.endianness = LittleEndian
- nSrc = 4
- default:
- if u.current.bomPolicy&requireBOM != 0 {
- return 0, 0, ErrMissingBOM
- }
- }
- u.current.bomPolicy = IgnoreBOM
- }
-
- var r rune
- var dSize, sSize int
- for nSrc < len(src) {
- if nSrc+3 < len(src) {
- x := uint32(src[nSrc+0])<<24 | uint32(src[nSrc+1])<<16 |
- uint32(src[nSrc+2])<<8 | uint32(src[nSrc+3])
- if u.current.endianness == LittleEndian {
- x = x>>24 | (x >> 8 & 0x0000FF00) | (x << 8 & 0x00FF0000) | x<<24
- }
- r, sSize = rune(x), 4
- if dSize = utf8.RuneLen(r); dSize < 0 {
- r, dSize = utf8.RuneError, 3
- }
- } else if atEOF {
- // 1..3 trailing bytes.
- r, dSize, sSize = utf8.RuneError, 3, len(src)-nSrc
- } else {
- err = transform.ErrShortSrc
- break
- }
- if nDst+dSize > len(dst) {
- err = transform.ErrShortDst
- break
- }
- nDst += utf8.EncodeRune(dst[nDst:], r)
- nSrc += sSize
- }
- return nDst, nSrc, err
-}
-
-type utf32Encoder struct {
- endianness Endianness
- initialBOMPolicy BOMPolicy
- currentBOMPolicy BOMPolicy
-}
-
-func (u *utf32Encoder) Reset() {
- u.currentBOMPolicy = u.initialBOMPolicy
-}
-
-func (u *utf32Encoder) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
- if u.currentBOMPolicy&writeBOM != 0 {
- if len(dst) < 4 {
- return 0, 0, transform.ErrShortDst
- }
- dst[0], dst[1], dst[2], dst[3] = 0x00, 0x00, 0xfe, 0xff
- u.currentBOMPolicy = IgnoreBOM
- nDst = 4
- }
-
- r, size := rune(0), 0
- for nSrc < len(src) {
- r = rune(src[nSrc])
-
- // Decode a 1-byte rune.
- if r < utf8.RuneSelf {
- size = 1
-
- } else {
- // Decode a multi-byte rune.
- r, size = utf8.DecodeRune(src[nSrc:])
- if size == 1 {
- // All valid runes of size 1 (those below utf8.RuneSelf) were
- // handled above. We have invalid UTF-8 or we haven't seen the
- // full character yet.
- if !atEOF && !utf8.FullRune(src[nSrc:]) {
- err = transform.ErrShortSrc
- break
- }
- }
- }
-
- if nDst+4 > len(dst) {
- err = transform.ErrShortDst
- break
- }
-
- dst[nDst+0] = uint8(r >> 24)
- dst[nDst+1] = uint8(r >> 16)
- dst[nDst+2] = uint8(r >> 8)
- dst[nDst+3] = uint8(r)
- nDst += 4
- nSrc += size
- }
-
- if u.endianness == LittleEndian {
- for i := 0; i < nDst; i += 4 {
- dst[i], dst[i+1], dst[i+2], dst[i+3] = dst[i+3], dst[i+2], dst[i+1], dst[i]
- }
- }
- return nDst, nSrc, err
-}
diff --git a/vendor/golang.org/x/text/encoding/unicode/utf32/utf32_test.go b/vendor/golang.org/x/text/encoding/unicode/utf32/utf32_test.go
deleted file mode 100644
index cd6158e..0000000
--- a/vendor/golang.org/x/text/encoding/unicode/utf32/utf32_test.go
+++ /dev/null
@@ -1,248 +0,0 @@
-// Copyright 2016 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 utf32
-
-import (
- "testing"
-
- "golang.org/x/text/encoding"
- "golang.org/x/text/encoding/internal/enctest"
- "golang.org/x/text/transform"
-)
-
-var (
- utf32LEIB = UTF32(LittleEndian, IgnoreBOM) // UTF-32LE (atypical interpretation)
- utf32LEUB = UTF32(LittleEndian, UseBOM) // UTF-32, LE
- // utf32LEEB = UTF32(LittleEndian, ExpectBOM) // UTF-32, LE, Expect - covered in encoding_test.go
- utf32BEIB = UTF32(BigEndian, IgnoreBOM) // UTF-32BE (atypical interpretation)
- utf32BEUB = UTF32(BigEndian, UseBOM) // UTF-32 default
- utf32BEEB = UTF32(BigEndian, ExpectBOM) // UTF-32 Expect
-)
-
-func TestBasics(t *testing.T) {
- testCases := []struct {
- e encoding.Encoding
- encPrefix string
- encSuffix string
- encoded string
- utf8 string
- }{{
- e: utf32BEIB,
- encoded: "\x00\x00\x00\x57\x00\x00\x00\xe4\x00\x01\xd5\x65",
- utf8: "\x57\u00e4\U0001d565",
- }, {
- e: UTF32(BigEndian, ExpectBOM),
- encPrefix: "\x00\x00\xfe\xff",
- encoded: "\x00\x00\x00\x57\x00\x00\x00\xe4\x00\x01\xd5\x65",
- utf8: "\x57\u00e4\U0001d565",
- }, {
- e: UTF32(LittleEndian, IgnoreBOM),
- encoded: "\x57\x00\x00\x00\xe4\x00\x00\x00\x65\xd5\x01\x00",
- utf8: "\x57\u00e4\U0001d565",
- }, {
- e: UTF32(LittleEndian, ExpectBOM),
- encPrefix: "\xff\xfe\x00\x00",
- encoded: "\x57\x00\x00\x00\xe4\x00\x00\x00\x65\xd5\x01\x00",
- utf8: "\x57\u00e4\U0001d565",
- }}
-
- for _, tc := range testCases {
- enctest.TestEncoding(t, tc.e, tc.encoded, tc.utf8, tc.encPrefix, tc.encSuffix)
- }
-}
-
-func TestFiles(t *testing.T) { enctest.TestFile(t, utf32BEIB) }
-
-func BenchmarkEncoding(b *testing.B) { enctest.Benchmark(b, utf32BEIB) }
-
-func TestUTF32(t *testing.T) {
- testCases := []struct {
- desc string
- src string
- notEOF bool // the inverse of atEOF
- sizeDst int
- want string
- nSrc int
- err error
- t transform.Transformer
- }{{
- desc: "utf-32 IgnoreBOM dec: empty string",
- t: utf32BEIB.NewDecoder(),
- }, {
- desc: "utf-32 UseBOM dec: empty string",
- t: utf32BEUB.NewDecoder(),
- }, {
- desc: "utf-32 ExpectBOM dec: empty string",
- err: ErrMissingBOM,
- t: utf32BEEB.NewDecoder(),
- }, {
- desc: "utf-32be dec: Doesn't interpret U+FEFF as BOM",
- src: "\x00\x00\xFE\xFF\x00\x01\x23\x45\x00\x00\x00\x3D\x00\x00\x00\x52\x00\x00\x00\x61",
- sizeDst: 100,
- want: "\uFEFF\U00012345=Ra",
- nSrc: 20,
- t: utf32BEIB.NewDecoder(),
- }, {
- desc: "utf-32be dec: Interprets little endian U+FEFF as invalid",
- src: "\xFF\xFE\x00\x00\x00\x01\x23\x45\x00\x00\x00\x3D\x00\x00\x00\x52\x00\x00\x00\x61",
- sizeDst: 100,
- want: "\uFFFD\U00012345=Ra",
- nSrc: 20,
- t: utf32BEIB.NewDecoder(),
- }, {
- desc: "utf-32le dec: Doesn't interpret U+FEFF as BOM",
- src: "\xFF\xFE\x00\x00\x45\x23\x01\x00\x3D\x00\x00\x00\x52\x00\x00\x00\x61\x00\x00\x00",
- sizeDst: 100,
- want: "\uFEFF\U00012345=Ra",
- nSrc: 20,
- t: utf32LEIB.NewDecoder(),
- }, {
- desc: "utf-32le dec: Interprets big endian U+FEFF as invalid",
- src: "\x00\x00\xFE\xFF\x45\x23\x01\x00\x3D\x00\x00\x00\x52\x00\x00\x00\x61\x00\x00\x00",
- sizeDst: 100,
- want: "\uFFFD\U00012345=Ra",
- nSrc: 20,
- t: utf32LEIB.NewDecoder(),
- }, {
- desc: "utf-32 enc: Writes big-endian BOM",
- src: "\U00012345=Ra",
- sizeDst: 100,
- want: "\x00\x00\xFE\xFF\x00\x01\x23\x45\x00\x00\x00\x3D\x00\x00\x00\x52\x00\x00\x00\x61",
- nSrc: 7,
- t: utf32BEUB.NewEncoder(),
- }, {
- desc: "utf-32 enc: Writes little-endian BOM",
- src: "\U00012345=Ra",
- sizeDst: 100,
- want: "\xFF\xFE\x00\x00\x45\x23\x01\x00\x3D\x00\x00\x00\x52\x00\x00\x00\x61\x00\x00\x00",
- nSrc: 7,
- t: utf32LEUB.NewEncoder(),
- }, {
- desc: "utf-32 dec: Interprets text using big-endian default when BOM not present",
- src: "\x00\x01\x23\x45\x00\x00\x00\x3D\x00\x00\x00\x52\x00\x00\x00\x61",
- sizeDst: 100,
- want: "\U00012345=Ra",
- nSrc: 16,
- t: utf32BEUB.NewDecoder(),
- }, {
- desc: "utf-32 dec: Interprets text using little-endian default when BOM not present",
- src: "\x45\x23\x01\x00\x3D\x00\x00\x00\x52\x00\x00\x00\x61\x00\x00\x00",
- sizeDst: 100,
- want: "\U00012345=Ra",
- nSrc: 16,
- t: utf32LEUB.NewDecoder(),
- }, {
- desc: "utf-32 dec: BOM determines encoding BE",
- src: "\x00\x00\xFE\xFF\x00\x01\x23\x45\x00\x00\x00\x3D\x00\x00\x00\x52\x00\x00\x00\x61",
- sizeDst: 100,
- want: "\U00012345=Ra",
- nSrc: 20,
- t: utf32BEUB.NewDecoder(),
- }, {
- desc: "utf-32 dec: BOM determines encoding LE",
- src: "\xFF\xFE\x00\x00\x45\x23\x01\x00\x3D\x00\x00\x00\x52\x00\x00\x00\x61\x00\x00\x00",
- sizeDst: 100,
- want: "\U00012345=Ra",
- nSrc: 20,
- t: utf32LEUB.NewDecoder(),
- }, {
- desc: "utf-32 dec: BOM determines encoding LE, change default",
- src: "\xFF\xFE\x00\x00\x45\x23\x01\x00\x3D\x00\x00\x00\x52\x00\x00\x00\x61\x00\x00\x00",
- sizeDst: 100,
- want: "\U00012345=Ra",
- nSrc: 20,
- t: utf32BEUB.NewDecoder(),
- }, {
- desc: "utf-32 dec: BOM determines encoding BE, change default",
- src: "\x00\x00\xFE\xFF\x00\x01\x23\x45\x00\x00\x00\x3D\x00\x00\x00\x52\x00\x00\x00\x61",
- sizeDst: 100,
- want: "\U00012345=Ra",
- nSrc: 20,
- t: utf32LEUB.NewDecoder(),
- }, {
- desc: "utf-32 dec: Don't change big-endian byte order mid-stream",
- src: "\x00\x01\x23\x45\x00\x00\x00\x3D\xFF\xFE\x00\x00\x00\x00\xFE\xFF\x00\x00\x00\x52\x00\x00\x00\x61",
- sizeDst: 100,
- want: "\U00012345=\uFFFD\uFEFFRa",
- nSrc: 24,
- t: utf32BEUB.NewDecoder(),
- }, {
- desc: "utf-32 dec: Don't change little-endian byte order mid-stream",
- src: "\x45\x23\x01\x00\x3D\x00\x00\x00\x00\x00\xFE\xFF\xFF\xFE\x00\x00\x52\x00\x00\x00\x61\x00\x00\x00",
- sizeDst: 100,
- want: "\U00012345=\uFFFD\uFEFFRa",
- nSrc: 24,
- t: utf32LEUB.NewDecoder(),
- }, {
- desc: "utf-32 dec: Fail on missing BOM when required",
- src: "\x00\x01\x23\x45\x00\x00\x00\x3D\x00\x00\x00\x52\x00\x00\x00\x61",
- sizeDst: 100,
- want: "",
- nSrc: 0,
- err: ErrMissingBOM,
- t: utf32BEEB.NewDecoder(),
- }, {
- desc: "utf-32 enc: Short dst",
- src: "\U00012345=Ra",
- sizeDst: 15,
- want: "\x00\x01\x23\x45\x00\x00\x00\x3D\x00\x00\x00\x52",
- nSrc: 6,
- err: transform.ErrShortDst,
- t: utf32BEIB.NewEncoder(),
- }, {
- desc: "utf-32 enc: Short src",
- src: "\U00012345=Ra\xC2",
- notEOF: true,
- sizeDst: 100,
- want: "\x00\x01\x23\x45\x00\x00\x00\x3D\x00\x00\x00\x52\x00\x00\x00\x61",
- nSrc: 7,
- err: transform.ErrShortSrc,
- t: utf32BEIB.NewEncoder(),
- }, {
- desc: "utf-32 enc: Invalid input",
- src: "\x80\xC1\xC2\x7F\xC2",
- sizeDst: 100,
- want: "\x00\x00\xFF\xFD\x00\x00\xFF\xFD\x00\x00\xFF\xFD\x00\x00\x00\x7F\x00\x00\xFF\xFD",
- nSrc: 5,
- t: utf32BEIB.NewEncoder(),
- }, {
- desc: "utf-32 dec: Short dst",
- src: "\x00\x00\x00\x41",
- sizeDst: 0,
- want: "",
- nSrc: 0,
- err: transform.ErrShortDst,
- t: utf32BEIB.NewDecoder(),
- }, {
- desc: "utf-32 dec: Short src",
- src: "\x00\x00\x00",
- notEOF: true,
- sizeDst: 4,
- want: "",
- nSrc: 0,
- err: transform.ErrShortSrc,
- t: utf32BEIB.NewDecoder(),
- }, {
- desc: "utf-32 dec: Invalid input",
- src: "\x00\x00\xD8\x00\x00\x00\xDF\xFF\x00\x11\x00\x00\x00\x00\x00",
- sizeDst: 100,
- want: "\uFFFD\uFFFD\uFFFD\uFFFD",
- nSrc: 15,
- t: utf32BEIB.NewDecoder(),
- }}
- for i, tc := range testCases {
- b := make([]byte, tc.sizeDst)
- nDst, nSrc, err := tc.t.Transform(b, []byte(tc.src), !tc.notEOF)
- if err != tc.err {
- t.Errorf("%d:%s: error was %v; want %v", i, tc.desc, err, tc.err)
- }
- if got := string(b[:nDst]); got != tc.want {
- t.Errorf("%d:%s: result was %q: want %q", i, tc.desc, got, tc.want)
- }
- if nSrc != tc.nSrc {
- t.Errorf("%d:%s: nSrc was %d; want %d", i, tc.desc, nSrc, tc.nSrc)
- }
- }
-}