Fix dotnet compatibility

.github/workflows/run_tests.yml

@@ -15,64 +15,46 @@ env:
 jobs:
   test_cover:
     name: Coverage
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-22.04
 
     env:
       CGO_ENABLED: 0
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
       - name: Set up Go
-        uses: actions/setup-go@v2
+        uses: actions/setup-go@v5
         with:
           go-version: 1.21
 
-      - name: Restore Go modules from cache
-        uses: actions/cache@v2
-        with:
-          path: /home/runner/go/pkg/mod
-          key: deps-${{ hashFiles('go.sum') }}
-
-      - name: Update Go modules
-        run: go mod download -json
-
       - name: Write coverage profile
         run: go test -v ./... -coverprofile=./coverage.txt -covermode=atomic -coverpkg=./pkg...,./cli/...
 
       - name: Upload coverage results to Codecov
-        uses: codecov/codecov-action@v1
+        uses: codecov/codecov-action@v2
         with:
           fail_ci_if_error: false
           path_to_write_report: ./coverage.txt
           verbose: true
 
   tests:
     name: Go
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-22.04
     strategy:
       matrix:
         go_versions: [ '1.19', '1.20' ]
       fail-fast: false
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
       - name: Set up Go
-        uses: actions/setup-go@v2
+        uses: actions/setup-go@v5
         with:
           go-version: '${{ matrix.go_versions }}'
 
-      - name: Restore Go modules from cache
-        uses: actions/cache@v2
-        with:
-          path: /home/runner/go/pkg/mod
-          key: deps-${{ hashFiles('go.sum') }}
-
-      - name: Update Go modules
-        run: go mod download -json
-
       - name: Run tests
-        run: go test -v -race ./...
+        run: go test -v -race ./...

README.md

@@ -1,35 +1,18 @@
-nspcc-dev fork of go-ordered-json
-===============
+.NET-compatible JSON library
+============================
 
-There are some legacy/stupid applications[1] that you need to interoperate with,
-and they for whatever reason require that the JSON you're using is ordered in
-a particular way (contrary to the JSON specifications).
+It's made for 100% compatibility with the JSON variation used by
+[Neo blockchain](https://github.com/neo-project/). There are three problems
+there:
+ * it's ordered (that's why it's a fork of [go-ordered-json](https://github.com/virtuald/go-ordered-json))
+ * it has different conventions regarding control and "special" symbols
+ * it has different conventions wrt incorrect UTF-8
 
-Unfortunately, the golang authors are not willing to support such a broken use
-case, so on [their advice](https://groups.google.com/forum/#!topic/golang-dev/zBQwhm3VfvU)
-this is a fork of the golang encoding/json package, with the ordered JSON
-support originating with a patch from
-[Peter Waldschmidt](https://go-review.googlesource.com/c/7930/).
+The primary user of this library is [NeoGo](https://github.com/nspcc-dev/neo-go/),
+it has to be 100% compatible with C# implementation to correctly process
+transactions, that's why we're maintaining this library and solving any
+inconsistencies with .NET libraries if found.
 
 **If you can, you should avoid using this package**. However, if you can't
 avoid it, then you are welcome to. Provided under the MIT license, just like
 golang.
-
-Known broken applications 
--------------------------
-
-* [1][Windows Communication Foundation Json __type ordering](https://docs.microsoft.com/en-us/dotnet/framework/wcf/feature-details/stand-alone-json-serialization#type-hint-position-in-json-objects)
-* [2][NEO node](https://github.com/neo-project/neo/tree/master/src/neo/IO/Json)
-
-Fork motivations
--------------------------
-
-NEO project has its own implementation of JSON serializer which is more a JSON
-dialect rather than standard-compatible implementation. Until JSON serialisation
-format affects contract states we need to be byte-to-byte compatible with the
-reference JSON serializer. This fork contains the following compatibility quirks:
-
-* JSON serializer is ordered (see https://github.com/nspcc-dev/neo-go/pull/2026) (implemented in the original [virtuald/go-ordered-json](https://github.com/virtuald/go-ordered-json) repository)
-* JSON serializer escapes non-ascii characters while marshalling (see https://github.com/nspcc-dev/neo-go/pull/2174)
-
-More compatibility quirks may be added in the future.

decode.go

@@ -85,14 +85,13 @@ import (
 //
 // The JSON null value unmarshals into an interface, map, pointer, or slice
 // by setting that Go value to nil. Because null is often used in JSON to mean
-// ``not present,'' unmarshaling a JSON null into any other Go type has no effect
+// “not present,” unmarshaling a JSON null into any other Go type has no effect
 // on the value and produces no error.
 //
 // When unmarshaling quoted strings, invalid UTF-8 or
 // invalid UTF-16 surrogate pairs are not treated as an error.
 // Instead, they are replaced by the Unicode replacement
 // character U+FFFD.
-//
 func Unmarshal(data []byte, v interface{}) error {
 	// Check for well-formedness.
 	// Avoids filling out half a data structure
@@ -274,8 +273,8 @@ type decodeState struct {
 		Struct string
 		Field  string
 	}
-	savedError error
-	useNumber  bool
+	savedError       error
+	useNumber        bool
 	useOrderedObject bool
 }
 

decode_test.go

@@ -372,12 +372,12 @@ func (b *intWithPtrMarshalText) UnmarshalText(data []byte) error {
 }
 
 type unmarshalTest struct {
-	in        string
-	ptr       interface{}
-	out       interface{}
-	err       error
-	useNumber bool
-	golden    bool
+	in               string
+	ptr              interface{}
+	out              interface{}
+	err              error
+	useNumber        bool
+	golden           bool
 	useOrderedObject bool
 }
 
@@ -858,12 +858,12 @@ func TestMarshal(t *testing.T) {
 var badUTF8 = []struct {
 	in, out string
 }{
-	{"hello\xffworld", `"hello\ufffdworld"`},
+	{"hello\xffworld", `"hello\u00FFworld"`},
 	{"", `""`},
-	{"\xff", `"\ufffd"`},
-	{"\xff\xff", `"\ufffd\ufffd"`},
-	{"a\xffb", `"a\ufffdb"`},
-	{"\xe6\x97\xa5\xe6\x9c\xac\xff\xaa\x9e", `"\u65E5\u672C\ufffd\ufffd\ufffd"`},
+	{"\xff", `"\u00FF"`},
+	{"\xff\xff", `"\u00FF\u00FF"`},
+	{"a\xffb", `"a\u00FFb"`},
+	{"\xe6\x97\xa5\xe6\x9c\xac\xff\xaa\x9e", `"\u65E5\u672C\u00FF\u00AA\u009E"`},
 }
 
 func TestMarshalBadUTF8(t *testing.T) {

encode.go

@@ -81,31 +81,31 @@ import (
 //
 // Examples of struct field tags and their meanings:
 //
-//   // Field appears in JSON as key "myName".
-//   Field int `json:"myName"`
+//	// Field appears in JSON as key "myName".
+//	Field int `json:"myName"`
 //
-//   // Field appears in JSON as key "myName" and
-//   // the field is omitted from the object if its value is empty,
-//   // as defined above.
-//   Field int `json:"myName,omitempty"`
+//	// Field appears in JSON as key "myName" and
+//	// the field is omitted from the object if its value is empty,
+//	// as defined above.
+//	Field int `json:"myName,omitempty"`
 //
-//   // Field appears in JSON as key "Field" (the default), but
-//   // the field is skipped if empty.
-//   // Note the leading comma.
-//   Field int `json:",omitempty"`
+//	// Field appears in JSON as key "Field" (the default), but
+//	// the field is skipped if empty.
+//	// Note the leading comma.
+//	Field int `json:",omitempty"`
 //
-//   // Field is ignored by this package.
-//   Field int `json:"-"`
+//	// Field is ignored by this package.
+//	Field int `json:"-"`
 //
-//   // Field appears in JSON as key "-".
-//   Field int `json:"-,"`
+//	// Field appears in JSON as key "-".
+//	Field int `json:"-,"`
 //
 // The "string" option signals that a field is stored as JSON inside a
 // JSON-encoded string. It applies only to fields of string, floating point,
 // integer, or boolean types. This extra level of encoding is sometimes used
 // when communicating with JavaScript programs:
 //
-//    Int64String int64 `json:",string"`
+//	Int64String int64 `json:",string"`
 //
 // The key name will be used if it's a non-empty string consisting of
 // only Unicode letters, digits, and ASCII punctuation except quotation
@@ -161,7 +161,6 @@ import (
 // JSON cannot represent cyclic data structures and Marshal does not
 // handle them. Passing cyclic structures to Marshal will result in
 // an infinite recursion.
-//
 func Marshal(v interface{}) ([]byte, error) {
 	e := &encodeState{}
 	err := e.marshal(v, encOpts{escapeHTML: true})
@@ -917,9 +916,15 @@ func (e *encodeState) string(s string, escapeHTML bool) int {
 			case '\\':
 				e.WriteByte('\\')
 				e.WriteByte(b)
+			case 0x08:
+				e.WriteByte('\\')
+				e.WriteByte('b')
 			case '\n':
 				e.WriteByte('\\')
 				e.WriteByte('n')
+			case 0x0c:
+				e.WriteByte('\\')
+				e.WriteByte('f')
 			case '\r':
 				e.WriteByte('\\')
 				e.WriteByte('r')
@@ -945,7 +950,9 @@ func (e *encodeState) string(s string, escapeHTML bool) int {
 			if start < i {
 				e.WriteString(s[start:i])
 			}
-			e.WriteString(`\ufffd`)
+			e.WriteString(`\u00`)
+			e.WriteByte(hex[s[i]>>4])
+			e.WriteByte(hex[s[i]&0xF])
 			i += size
 			start = i
 			continue
@@ -1004,9 +1011,15 @@ func (e *encodeState) stringBytes(s []byte, escapeHTML bool) int {
 			case '\\':
 				e.WriteByte('\\')
 				e.WriteByte(b)
+			case 0x08:
+				e.WriteByte('\\')
+				e.WriteByte('b')
 			case '\n':
 				e.WriteByte('\\')
 				e.WriteByte('n')
+			case 0x0c:
+				e.WriteByte('\\')
+				e.WriteByte('f')
 			case '\r':
 				e.WriteByte('\\')
 				e.WriteByte('r')
@@ -1032,7 +1045,9 @@ func (e *encodeState) stringBytes(s []byte, escapeHTML bool) int {
 			if start < i {
 				e.Write(s[start:i])
 			}
-			e.WriteString(`\ufffd`)
+			e.WriteString(`\u00`)
+			e.WriteByte(hex[s[i]>>4])
+			e.WriteByte(hex[s[i]&0xF])
 			i += size
 			start = i
 			continue

encode_test.go

@@ -231,7 +231,6 @@ func (CText) MarshalText() ([]byte, error) {
 	return []byte(`"<&>"`), nil
 }
 
-
 func TestMarshaler_NeoGo_PR2174(t *testing.T) {
 	source := "IOU（欠条币）：一种支持负数的NEP-17（非严格意义上的）资产，合约无存储区，账户由区块链浏览器统计"
 	b, err := Marshal(source)
@@ -578,40 +577,16 @@ var encodeStringTests = []struct {
 	in  string
 	out string
 }{
-	{"\x00", `"\u0000"`},
-	{"\x01", `"\u0001"`},
-	{"\x02", `"\u0002"`},
-	{"\x03", `"\u0003"`},
-	{"\x04", `"\u0004"`},
-	{"\x05", `"\u0005"`},
-	{"\x06", `"\u0006"`},
-	{"\x07", `"\u0007"`},
-	{"\x08", `"\u0008"`},
-	{"\x09", `"\t"`},
-	{"\x0a", `"\n"`},
-	{"\x0b", `"\u000B"`},
-	{"\x0c", `"\u000C"`},
-	{"\x0d", `"\r"`},
-	{"\x0e", `"\u000E"`},
-	{"\x0f", `"\u000F"`},
-	{"\x10", `"\u0010"`},
-	{"\x11", `"\u0011"`},
-	{"\x12", `"\u0012"`},
-	{"\x13", `"\u0013"`},
-	{"\x14", `"\u0014"`},
-	{"\x15", `"\u0015"`},
-	{"\x16", `"\u0016"`},
-	{"\x17", `"\u0017"`},
-	{"\x18", `"\u0018"`},
-	{"\x19", `"\u0019"`},
-	{"\x1a", `"\u001A"`},
-	{"\x1b", `"\u001B"`},
-	{"\x1c", `"\u001C"`},
-	{"\x1d", `"\u001D"`},
-	{"\x1e", `"\u001E"`},
-	{"\x1f", `"\u001F"`},
-	{"'", `"\u0027"`},
-	{"\"", `"\u0022"`},
+	{"\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f", `"\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\b\t\n\u000B\f\r\u000E\u000F\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001A\u001B\u001C\u001D\u001E\u001F"`},
+	{"\x20\x21\x22\x23\x24\x25\x26\x27\x28\x29\x2a\x2b\x2c\x2d\x2e\x2f\x30\x31\x32\x33\x34\x35\x36\x37\x38\x39\x3a\x3b\x3c\x3d\x3e\x3f", `" !\u0022#$%\u0026\u0027()*\u002B,-./0123456789:;\u003C=\u003E?"`},
+	{"\x40\x41\x44\x45\x44\x45\x46\x47\x48\x49\x4a\x4b\x4c\x4d\x4e\x4f\x50\x51\x54\x55\x54\x55\x56\x57\x58\x59\x5a\x5b\x5c\x5d\x5e\x5f", `"@ADEDEFGHIJKLMNOPQTUTUVWXYZ[\\]^_"`},
+	{"\x60\x61\x66\x67\x64\x65\x66\x67\x68\x69\x6a\x6b\x6c\x6d\x6e\x6f\x70\x71\x76\x77\x74\x75\x76\x77\x78\x79\x7a\x7b\x7c\x7d\x7e\x7f", `"\u0060afgdefghijklmnopqvwtuvwxyz{|}~\u007F"`},
+	{"\x80\x81\x88\x89\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x90\x91\x98\x99\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f", `"\u0080\u0081\u0088\u0089\u0084\u0085\u0086\u0087\u0088\u0089\u008A\u008B\u008C\u008D\u008E\u008F\u0090\u0091\u0098\u0099\u0094\u0095\u0096\u0097\u0098\u0099\u009A\u009B\u009C\u009D\u009E\u009F"`},
+	{"\xa0\xa1\xaa\xab\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xb0\xb1\xba\xbb\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf", `"\u00A0\u00A1\u00AA\u00AB\u00A4\u00A5\u00A6\u00A7\u00A8\u00A9\u00AA\u00AB\u00AC\u00AD\u00AE\u00AF\u00B0\u00B1\u00BA\u00BB\u00B4\u00B5\u00B6\u00B7\u00B8\u00B9\u00BA\u00BB\u00BC\u00BD\u00BE\u00BF"`},
+	{"\xc0\xc1\xcc\xcd\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xdc\xdd\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf", `"\u00C0\u00C1\u00CC\u00CD\u00C4\u00C5\u00C6\u00C7\u00C8\u00C9\u00CA\u00CB\u00CC\u00CD\u00CE\u00CF\u00D0\u00D1\u00DC\u00DD\u00D4\u00D5\u00D6\u00D7\u00D8\u00D9\u00DA\u00DB\u00DC\u00DD\u00DE\u00DF"`},
+	{"\xe0\xe1\xee\xef\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef\xf0\xf1\xfe\xff\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff", `"\u00E0\u00E1\u00EE\u00EF\u00E4\u00E5\u00E6\u00E7\u00E8\u00E9\u00EA\u00EB\u00EC\u00ED\u00EE\u00EF\u00F0\u00F1\u00FE\u00FF\u00F4\u00F5\u00F6\u00F7\u00F8\u00F9\u00FA\u00FB\u00FC\u00FD\u00FE\u00FF"`},
+	{"\xff\xd0", `"\u00FF\u00D0"`},
+	{"测试", `"\u6D4B\u8BD5"`},
 }
 
 func TestEncodeString(t *testing.T) {

example_test.go

@@ -6,8 +6,8 @@ package json_test
 
 import (
 	"bytes"
-	"github.com/virtuald/go-ordered-json"
 	"fmt"
+	"github.com/virtuald/go-ordered-json"
 	"io"
 	"log"
 	"os"
@@ -312,4 +312,4 @@ func ExampleOrderedObject() {
 	//  name=André-Marie Ampère born=1777 died=1836
 	// Encoded:
 	//  {"name":"Hans Christian Ørsted","born":1777,"died":1851,"nationality":"Danish"}
-}
+}

fold.go

@@ -24,8 +24,9 @@ const (
 // 4) simpleLetterEqualFold, no specials, no non-letters.
 //
 // The letters S and K are special because they map to 3 runes, not just 2:
-//  * S maps to s and to U+017F 'ſ' Latin small letter long s
-//  * k maps to K and to U+212A 'K' Kelvin sign
+//   - S maps to s and to U+017F 'ſ' Latin small letter long s
+//   - k maps to K and to U+212A 'K' Kelvin sign
+//
 // See https://play.golang.org/p/tTxjOc0OGo
 //
 // The returned function is specialized for matching against s and