public static void WriteBase64URL(
StringOutput writer,
byte[] data,
int offset,
int count,
bool padding)
{
WriteBase64(writer, data, offset, count, false, padding);
}
public static void WriteBase64(
StringOutput writer,
byte[] data,
int offset,
int count,
bool padding)
{
WriteBase64(writer, data, offset, count, Base64Classic, padding);
}
public static void WriteBase64URL(
StringOutput writer,
byte[] data,
int offset,
int count,
bool padding)
{
WriteBase64(writer, data, offset, count, Base64URL, padding);
}
internal static void WriteJSONToInternal(
CBORObject obj,
StringOutput writer,
JSONOptions options)
{
if (obj.Type == CBORType.Array || obj.Type == CBORType.Map)
{
var stack = new List <CBORObject>();
WriteJSONToInternal(obj, writer, options, stack);
}
else
{
WriteJSONToInternal(obj, writer, options, null);
}
}
internal static void WriteJSONStringUnquoted(
string str,
StringOutput sb)
{
// Surrogates were already verified when this
// string was added to the CBOR object; that check
// is not repeated here
var first = true;
for (var i = 0; i < str.Length; ++i) {
char c = str[i];
if (c == '\\' || c == '"') {
if (first) {
first = false;
sb.WriteString(str, 0, i);
}
sb.WriteCodePoint((int)'\\');
sb.WriteCodePoint((int)c);
} else if (c < 0x20 || (c >= 0x85 && (c == 0x2028 || c == 0x2029 ||
c == 0x85 || c == 0xfeff || c == 0xfffe ||
c == 0xffff))) {
// Control characters, and also the line and paragraph separators
// which apparently can't appear in JavaScript (as opposed to
// JSON) strings
// TODO: Also include 0x7f..0x9f in version 3
if (first) {
first = false;
sb.WriteString(str, 0, i);
}
if (c == 0x0d) {
sb.WriteString("\\r");
} else if (c == 0x0a) {
sb.WriteString("\\n");
} else if (c == 0x08) {
sb.WriteString("\\b");
} else if (c == 0x0c) {
sb.WriteString("\\f");
} else if (c == 0x09) {
sb.WriteString("\\t");
} else if (c == 0x85) {
sb.WriteString("\\u0085");
} else if (c >= 0x2028) {
sb.WriteString("\\u");
sb.WriteCodePoint((int)Hex16[(int)((c >> 12) & 15)]);
sb.WriteCodePoint((int)Hex16[(int)((c >> 8) & 15)]);
sb.WriteCodePoint((int)Hex16[(int)((c >> 4) & 15)]);
sb.WriteCodePoint((int)Hex16[(int)(c & 15)]);
} else {
sb.WriteString("\\u00");
sb.WriteCodePoint((int)Hex16[(int)(c >> 4)]);
sb.WriteCodePoint((int)Hex16[(int)(c & 15)]);
}
} else if (!first) {
if ((c & 0xfc00) == 0xd800) {
sb.WriteString(str, i, 2);
++i;
} else {
sb.WriteCodePoint((int)c);
}
}
}
if (first) {
sb.WriteString(str);
}
}
internal static void WriteJSONToInternal(
CBORObject obj,
StringOutput writer)
{
int type = obj.ItemType;
object thisItem = obj.ThisItem;
switch (type) {
case CBORObject.CBORObjectTypeSimpleValue: {
if (obj.IsTrue) {
writer.WriteString("true");
return;
}
if (obj.IsFalse) {
writer.WriteString("false");
return;
}
writer.WriteString("null");
return;
}
case CBORObject.CBORObjectTypeSingle: {
var f = (float)thisItem;
if (Single.IsNegativeInfinity(f) ||
Single.IsPositiveInfinity(f) || Single.IsNaN(f)) {
writer.WriteString("null");
return;
}
writer.WriteString(
CBORObject.TrimDotZero(
CBORUtilities.SingleToString(f)));
return;
}
case CBORObject.CBORObjectTypeDouble: {
var f = (double)thisItem;
if (Double.IsNegativeInfinity(f) || Double.IsPositiveInfinity(f) ||
Double.IsNaN(f)) {
writer.WriteString("null");
return;
}
string dblString = CBORUtilities.DoubleToString(f);
writer.WriteString(
CBORObject.TrimDotZero(dblString));
return;
}
case CBORObject.CBORObjectTypeInteger: {
var longItem = (long)thisItem;
writer.WriteString(CBORUtilities.LongToString(longItem));
return;
}
case CBORObject.CBORObjectTypeBigInteger: {
writer.WriteString(
CBORUtilities.BigIntToString((EInteger)thisItem));
return;
}
case CBORObject.CBORObjectTypeExtendedDecimal: {
var dec = (EDecimal)thisItem;
if (dec.IsInfinity() || dec.IsNaN()) {
writer.WriteString("null");
} else {
writer.WriteString(dec.ToString());
}
return;
}
case CBORObject.CBORObjectTypeExtendedFloat: {
var flo = (EFloat)thisItem;
if (flo.IsInfinity() || flo.IsNaN()) {
writer.WriteString("null");
return;
}
if (flo.IsFinite &&
flo.Exponent.Abs().CompareTo((EInteger)2500) > 0) {
// Too inefficient to convert to a decimal number
// from a bigfloat with a very high exponent,
// so convert to double instead
double f = flo.ToDouble();
if (Double.IsNegativeInfinity(f) ||
Double.IsPositiveInfinity(f) || Double.IsNaN(f)) {
writer.WriteString("null");
return;
}
string dblString =
CBORUtilities.DoubleToString(f);
writer.WriteString(
CBORObject.TrimDotZero(dblString));
return;
}
writer.WriteString(flo.ToString());
return;
}
case CBORObject.CBORObjectTypeByteString:
{
var byteArray = (byte[])thisItem;
if (byteArray.Length == 0) {
writer.WriteString("\"\"");
return;
}
writer.WriteCodePoint((int)'\"');
if (obj.HasTag(22)) {
Base64.WriteBase64(
writer,
byteArray,
0,
byteArray.Length,
false);
} else if (obj.HasTag(23)) {
// Write as base16
for (int i = 0; i < byteArray.Length; ++i) {
writer.WriteCodePoint((int)Hex16[(byteArray[i] >> 4) & 15]);
writer.WriteCodePoint((int)Hex16[byteArray[i] & 15]);
}
} else {
Base64.WriteBase64URL(
writer,
byteArray,
0,
byteArray.Length,
false);
}
writer.WriteCodePoint((int)'\"');
break;
}
case CBORObject.CBORObjectTypeTextString: {
var thisString = (string)thisItem;
if (thisString.Length == 0) {
writer.WriteString("\"\"");
return;
}
writer.WriteCodePoint((int)'\"');
WriteJSONStringUnquoted(thisString, writer);
writer.WriteCodePoint((int)'\"');
break;
}
case CBORObject.CBORObjectTypeArray: {
var first = true;
writer.WriteCodePoint((int)'[');
foreach (CBORObject i in obj.AsList()) {
if (!first) {
writer.WriteCodePoint((int)',');
}
WriteJSONToInternal(i, writer);
first = false;
}
writer.WriteCodePoint((int)']');
break;
}
case CBORObject.CBORObjectTypeExtendedRational: {
var dec = (ERational)thisItem;
EDecimal f = dec.ToEDecimalExactIfPossible(
EContext.Decimal128.WithUnlimitedExponents());
if (!f.IsFinite) {
writer.WriteString("null");
} else {
writer.WriteString(f.ToString());
}
break;
}
case CBORObject.CBORObjectTypeMap: {
var first = true;
var hasNonStringKeys = false;
IDictionary<CBORObject, CBORObject> objMap = obj.AsMap();
foreach (KeyValuePair<CBORObject, CBORObject> entry in objMap) {
CBORObject key = entry.Key;
if (key.ItemType != CBORObject.CBORObjectTypeTextString) {
hasNonStringKeys = true;
break;
}
}
if (!hasNonStringKeys) {
writer.WriteCodePoint((int)'{');
foreach (KeyValuePair<CBORObject, CBORObject> entry in objMap) {
CBORObject key = entry.Key;
CBORObject value = entry.Value;
if (!first) {
writer.WriteCodePoint((int)',');
}
writer.WriteCodePoint((int)'\"');
WriteJSONStringUnquoted((string)key.ThisItem, writer);
writer.WriteCodePoint((int)'\"');
writer.WriteCodePoint((int)':');
WriteJSONToInternal(value, writer);
first = false;
}
writer.WriteCodePoint((int)'}');
} else {
// This map has non-string keys
IDictionary<string, CBORObject> stringMap = new
Dictionary<string, CBORObject>();
// Copy to a map with String keys, since
// some keys could be duplicates
// when serialized to strings
foreach (KeyValuePair<CBORObject, CBORObject> entry in objMap) {
CBORObject key = entry.Key;
CBORObject value = entry.Value;
string str = (key.ItemType == CBORObject.CBORObjectTypeTextString) ?
((string)key.ThisItem) : key.ToJSONString();
stringMap[str] = value;
}
first = true;
writer.WriteCodePoint((int)'{');
foreach (KeyValuePair<string, CBORObject> entry in stringMap) {
string key = entry.Key;
CBORObject value = entry.Value;
if (!first) {
writer.WriteCodePoint((int)',');
}
writer.WriteCodePoint((int)'\"');
WriteJSONStringUnquoted((string)key, writer);
writer.WriteCodePoint((int)'\"');
writer.WriteCodePoint((int)':');
WriteJSONToInternal(value, writer);
first = false;
}
writer.WriteCodePoint((int)'}');
}
break;
}
default:
throw new InvalidOperationException("Unexpected item type");
}
}
internal static void WriteJSONStringUnquoted(
string str,
StringOutput sb,
JSONOptions options)
{
var i = 0;
for (; i < str.Length; ++i)
{
char c = str[i];
if (c < 0x20 || c >= 0x7f || c == '\\' || c == '"')
{
sb.WriteString(str, 0, i);
break;
}
}
if (i == str.Length)
{
sb.WriteString(str, 0, i);
return;
}
for (; i < str.Length; ++i)
{
char c = str[i];
if (c == '\\' || c == '"')
{
sb.WriteCodePoint((int)'\\');
sb.WriteCodePoint((int)c);
}
else if (c < 0x20 || (c >= 0x7f && (c == 0x2028 || c == 0x2029 ||
(c >= 0x7f && c <= 0xa0) || c == 0xfeff || c == 0xfffe ||
c == 0xffff)))
{
// Control characters, and also the line and paragraph separators
// which apparently can't appear in JavaScript (as opposed to
// JSON) strings
if (c == 0x0d)
{
sb.WriteString("\\r");
}
else if (c == 0x0a)
{
sb.WriteString("\\n");
}
else if (c == 0x08)
{
sb.WriteString("\\b");
}
else if (c == 0x0c)
{
sb.WriteString("\\f");
}
else if (c == 0x09)
{
sb.WriteString("\\t");
}
else if (c == 0x85)
{
sb.WriteString("\\u0085");
}
else if (c >= 0x100)
{
sb.WriteString("\\u");
sb.WriteCodePoint((int)Hex16[(int)((c >> 12) & 15)]);
sb.WriteCodePoint((int)Hex16[(int)((c >> 8) & 15)]);
sb.WriteCodePoint((int)Hex16[(int)((c >> 4) & 15)]);
sb.WriteCodePoint((int)Hex16[(int)(c & 15)]);
}
else
{
sb.WriteString("\\u00");
sb.WriteCodePoint((int)Hex16[(int)(c >> 4)]);
sb.WriteCodePoint((int)Hex16[(int)(c & 15)]);
}
}
else if ((c & 0xfc00) == 0xd800)
{
if (i >= str.Length - 1 || (str[i + 1] & 0xfc00) != 0xdc00)
{
// NOTE: RFC 8259 doesn't prohibit any particular
// error-handling behavior when a writer of JSON
// receives a string with an unpaired surrogate.
if (options.ReplaceSurrogates)
{
// Replace unpaired surrogate with U+FFFD
sb.WriteCodePoint(0xfffd);
}
else
{
throw new CBORException("Unpaired surrogate in string");
}
}
else
{
sb.WriteString(str, i, 2);
++i;
}
}
else
{
sb.WriteCodePoint((int)c);
}
}
}
internal static void WriteJSONToInternal(
CBORObject obj,
StringOutput writer,
JSONOptions options,
IList <CBORObject> stack)
{
if (obj.IsNumber)
{
writer.WriteString(CBORNumber.FromCBORObject(obj).ToJSONString());
return;
}
switch (obj.Type)
{
case CBORType.Integer:
case CBORType.FloatingPoint: {
CBORObject untaggedObj = obj.Untag();
writer.WriteString(
CBORNumber.FromCBORObject(untaggedObj).ToJSONString());
break;
}
case CBORType.Boolean: {
if (obj.IsTrue)
{
writer.WriteString("true");
return;
}
if (obj.IsFalse)
{
writer.WriteString("false");
return;
}
return;
}
case CBORType.SimpleValue: {
writer.WriteString("null");
return;
}
case CBORType.ByteString: {
byte[] byteArray = obj.GetByteString();
if (byteArray.Length == 0)
{
writer.WriteString("\"\"");
return;
}
writer.WriteCodePoint((int)'\"');
if (obj.HasTag(22))
{
// Base64 with padding
Base64.WriteBase64(
writer,
byteArray,
0,
byteArray.Length,
true);
}
else if (obj.HasTag(23))
{
// Write as base16
for (int i = 0; i < byteArray.Length; ++i)
{
writer.WriteCodePoint((int)Hex16[(byteArray[i] >> 4) & 15]);
writer.WriteCodePoint((int)Hex16[byteArray[i] & 15]);
}
}
else
{
// Base64url no padding
Base64.WriteBase64URL(
writer,
byteArray,
0,
byteArray.Length,
false);
}
writer.WriteCodePoint((int)'\"');
break;
}
case CBORType.TextString: {
string thisString = obj.AsString();
if (thisString.Length == 0)
{
writer.WriteString("\"\"");
return;
}
writer.WriteCodePoint((int)'\"');
WriteJSONStringUnquoted(thisString, writer, options);
writer.WriteCodePoint((int)'\"');
break;
}
case CBORType.Array: {
writer.WriteCodePoint((int)'[');
for (var i = 0; i < obj.Count; ++i)
{
if (i > 0)
{
writer.WriteCodePoint((int)',');
}
bool pop = CheckCircularRef(stack, obj, obj[i]);
WriteJSONToInternal(obj[i], writer, options, stack);
PopRefIfNeeded(stack, pop);
}
writer.WriteCodePoint((int)']');
break;
}
case CBORType.Map: {
var first = true;
var hasNonStringKeys = false;
ICollection <KeyValuePair <CBORObject, CBORObject> > entries =
obj.Entries;
foreach (KeyValuePair <CBORObject, CBORObject> entry in entries)
{
CBORObject key = entry.Key;
if (key.Type != CBORType.TextString ||
key.IsTagged)
{
// treat a non-text-string item or a tagged item
// as having non-string keys
hasNonStringKeys = true;
break;
}
}
if (!hasNonStringKeys)
{
writer.WriteCodePoint((int)'{');
foreach (KeyValuePair <CBORObject, CBORObject> entry in entries)
{
CBORObject key = entry.Key;
CBORObject value = entry.Value;
if (!first)
{
writer.WriteCodePoint((int)',');
}
writer.WriteCodePoint((int)'\"');
WriteJSONStringUnquoted(key.AsString(), writer, options);
writer.WriteCodePoint((int)'\"');
writer.WriteCodePoint((int)':');
bool pop = CheckCircularRef(stack, obj, value);
WriteJSONToInternal(value, writer, options, stack);
PopRefIfNeeded(stack, pop);
first = false;
}
writer.WriteCodePoint((int)'}');
}
else
{
// This map has non-string keys
IDictionary <string, CBORObject> stringMap = new
Dictionary <string, CBORObject>();
// Copy to a map with String keys, since
// some keys could be duplicates
// when serialized to strings
foreach (KeyValuePair <CBORObject, CBORObject> entry
in entries)
{
CBORObject key = entry.Key;
CBORObject value = entry.Value;
string str = null;
switch (key.Type)
{
case CBORType.TextString:
str = key.AsString();
break;
case CBORType.Array:
case CBORType.Map: {
var sb = new StringBuilder();
var sw = new StringOutput(sb);
bool pop = CheckCircularRef(stack, obj, key);
WriteJSONToInternal(key, sw, options, stack);
PopRefIfNeeded(stack, pop);
str = sb.ToString();
break;
}
default: str = key.ToJSONString(options);
break;
}
if (stringMap.ContainsKey(str))
{
throw new CBORException(
"Duplicate JSON string equivalents of map" +
"\u0020keys");
}
stringMap[str] = value;
}
first = true;
writer.WriteCodePoint((int)'{');
foreach (KeyValuePair <string, CBORObject> entry in stringMap)
{
string key = entry.Key;
CBORObject value = entry.Value;
if (!first)
{
writer.WriteCodePoint((int)',');
}
writer.WriteCodePoint((int)'\"');
WriteJSONStringUnquoted((string)key, writer, options);
writer.WriteCodePoint((int)'\"');
writer.WriteCodePoint((int)':');
bool pop = CheckCircularRef(stack, obj, value);
WriteJSONToInternal(value, writer, options, stack);
PopRefIfNeeded(stack, pop);
first = false;
}
writer.WriteCodePoint((int)'}');
}
break;
}
default:
throw new InvalidOperationException("Unexpected item" +
"\u0020type");
}
}
internal static void WriteJSONToInternal(
CBORObject obj,
StringOutput writer)
{
int type = obj.ItemType;
object thisItem = obj.ThisItem;
switch (type)
{
case CBORObject.CBORObjectTypeSimpleValue: {
if (obj.IsTrue)
{
writer.WriteString("true");
return;
}
if (obj.IsFalse)
{
writer.WriteString("false");
return;
}
writer.WriteString("null");
return;
}
case CBORObject.CBORObjectTypeSingle: {
var f = (float)thisItem;
if (Single.IsNegativeInfinity(f) ||
Single.IsPositiveInfinity(f) || Single.IsNaN(f))
{
writer.WriteString("null");
return;
}
writer.WriteString(
CBORObject.TrimDotZero(
CBORUtilities.SingleToString(f)));
return;
}
case CBORObject.CBORObjectTypeDouble: {
var f = (double)thisItem;
if (Double.IsNegativeInfinity(f) || Double.IsPositiveInfinity(f) ||
Double.IsNaN(f))
{
writer.WriteString("null");
return;
}
string dblString = CBORUtilities.DoubleToString(f);
writer.WriteString(
CBORObject.TrimDotZero(dblString));
return;
}
case CBORObject.CBORObjectTypeInteger: {
var longItem = (long)thisItem;
writer.WriteString(CBORUtilities.LongToString(longItem));
return;
}
case CBORObject.CBORObjectTypeBigInteger: {
writer.WriteString(
CBORUtilities.BigIntToString((EInteger)thisItem));
return;
}
case CBORObject.CBORObjectTypeExtendedDecimal: {
var dec = (EDecimal)thisItem;
if (dec.IsInfinity() || dec.IsNaN())
{
writer.WriteString("null");
}
else
{
writer.WriteString(dec.ToString());
}
return;
}
case CBORObject.CBORObjectTypeExtendedFloat: {
var flo = (EFloat)thisItem;
if (flo.IsInfinity() || flo.IsNaN())
{
writer.WriteString("null");
return;
}
if (flo.IsFinite &&
flo.Exponent.Abs().CompareTo((EInteger)2500) > 0)
{
// Too inefficient to convert to a decimal number
// from a bigfloat with a very high exponent,
// so convert to double instead
double f = flo.ToDouble();
if (Double.IsNegativeInfinity(f) ||
Double.IsPositiveInfinity(f) || Double.IsNaN(f))
{
writer.WriteString("null");
return;
}
string dblString =
CBORUtilities.DoubleToString(f);
writer.WriteString(
CBORObject.TrimDotZero(dblString));
return;
}
writer.WriteString(flo.ToString());
return;
}
case CBORObject.CBORObjectTypeByteString:
{
var byteArray = (byte[])thisItem;
if (byteArray.Length == 0)
{
writer.WriteString("\"\"");
return;
}
writer.WriteCodePoint((int)'\"');
if (obj.HasTag(22))
{
Base64.WriteBase64(
writer,
byteArray,
0,
byteArray.Length,
false);
}
else if (obj.HasTag(23))
{
// Write as base16
for (int i = 0; i < byteArray.Length; ++i)
{
writer.WriteCodePoint((int)Hex16[(byteArray[i] >> 4) & 15]);
writer.WriteCodePoint((int)Hex16[byteArray[i] & 15]);
}
}
else
{
Base64.WriteBase64URL(
writer,
byteArray,
0,
byteArray.Length,
false);
}
writer.WriteCodePoint((int)'\"');
break;
}
case CBORObject.CBORObjectTypeTextString: {
var thisString = (string)thisItem;
if (thisString.Length == 0)
{
writer.WriteString("\"\"");
return;
}
writer.WriteCodePoint((int)'\"');
WriteJSONStringUnquoted(thisString, writer);
writer.WriteCodePoint((int)'\"');
break;
}
case CBORObject.CBORObjectTypeArray: {
var first = true;
writer.WriteCodePoint((int)'[');
foreach (CBORObject i in obj.AsList())
{
if (!first)
{
writer.WriteCodePoint((int)',');
}
WriteJSONToInternal(i, writer);
first = false;
}
writer.WriteCodePoint((int)']');
break;
}
case CBORObject.CBORObjectTypeExtendedRational: {
var dec = (ERational)thisItem;
EDecimal f = dec.ToEDecimalExactIfPossible(
EContext.Decimal128.WithUnlimitedExponents());
if (!f.IsFinite)
{
writer.WriteString("null");
}
else
{
writer.WriteString(f.ToString());
}
break;
}
case CBORObject.CBORObjectTypeMap: {
var first = true;
var hasNonStringKeys = false;
IDictionary <CBORObject, CBORObject> objMap = obj.AsMap();
foreach (KeyValuePair <CBORObject, CBORObject> entry in objMap)
{
CBORObject key = entry.Key;
if (key.ItemType != CBORObject.CBORObjectTypeTextString)
{
hasNonStringKeys = true;
break;
}
}
if (!hasNonStringKeys)
{
writer.WriteCodePoint((int)'{');
foreach (KeyValuePair <CBORObject, CBORObject> entry in objMap)
{
CBORObject key = entry.Key;
CBORObject value = entry.Value;
if (!first)
{
writer.WriteCodePoint((int)',');
}
writer.WriteCodePoint((int)'\"');
WriteJSONStringUnquoted((string)key.ThisItem, writer);
writer.WriteCodePoint((int)'\"');
writer.WriteCodePoint((int)':');
WriteJSONToInternal(value, writer);
first = false;
}
writer.WriteCodePoint((int)'}');
}
else
{
// This map has non-string keys
IDictionary <string, CBORObject> stringMap = new
Dictionary <string, CBORObject>();
// Copy to a map with String keys, since
// some keys could be duplicates
// when serialized to strings
foreach (KeyValuePair <CBORObject, CBORObject> entry in objMap)
{
CBORObject key = entry.Key;
CBORObject value = entry.Value;
string str = (key.ItemType == CBORObject.CBORObjectTypeTextString) ?
((string)key.ThisItem) : key.ToJSONString();
stringMap[str] = value;
}
first = true;
writer.WriteCodePoint((int)'{');
foreach (KeyValuePair <string, CBORObject> entry in stringMap)
{
string key = entry.Key;
CBORObject value = entry.Value;
if (!first)
{
writer.WriteCodePoint((int)',');
}
writer.WriteCodePoint((int)'\"');
WriteJSONStringUnquoted((string)key, writer);
writer.WriteCodePoint((int)'\"');
writer.WriteCodePoint((int)':');
WriteJSONToInternal(value, writer);
first = false;
}
writer.WriteCodePoint((int)'}');
}
break;
}
default:
throw new InvalidOperationException("Unexpected item type");
}
}
internal static void WriteJSONStringUnquoted(
string str,
StringOutput sb)
{
// Surrogates were already verified when this
// string was added to the CBOR object; that check
// is not repeated here
var first = true;
for (var i = 0; i < str.Length; ++i)
{
char c = str[i];
if (c == '\\' || c == '"')
{
if (first)
{
first = false;
sb.WriteString(str, 0, i);
}
sb.WriteCodePoint((int)'\\');
sb.WriteCodePoint((int)c);
}
else if (c < 0x20 || (c >= 0x7f && (c == 0x2028 || c == 0x2029 ||
(c >= 0x7f && c <= 0xa0) || c == 0xfeff || c == 0xfffe ||
c == 0xffff)))
{
// Control characters, and also the line and paragraph separators
// which apparently can't appear in JavaScript (as opposed to
// JSON) strings
if (first)
{
first = false;
sb.WriteString(str, 0, i);
}
if (c == 0x0d)
{
sb.WriteString("\\r");
}
else if (c == 0x0a)
{
sb.WriteString("\\n");
}
else if (c == 0x08)
{
sb.WriteString("\\b");
}
else if (c == 0x0c)
{
sb.WriteString("\\f");
}
else if (c == 0x09)
{
sb.WriteString("\\t");
}
else if (c == 0x85)
{
sb.WriteString("\\u0085");
}
else if (c >= 0x100)
{
sb.WriteString("\\u");
sb.WriteCodePoint((int)Hex16[(int)((c >> 12) & 15)]);
sb.WriteCodePoint((int)Hex16[(int)((c >> 8) & 15)]);
sb.WriteCodePoint((int)Hex16[(int)((c >> 4) & 15)]);
sb.WriteCodePoint((int)Hex16[(int)(c & 15)]);
}
else
{
sb.WriteString("\\u00");
sb.WriteCodePoint((int)Hex16[(int)(c >> 4)]);
sb.WriteCodePoint((int)Hex16[(int)(c & 15)]);
}
}
else if (!first)
{
if ((c & 0xfc00) == 0xd800)
{
sb.WriteString(str, i, 2);
++i;
}
else
{
sb.WriteCodePoint((int)c);
}
}
}
if (first)
{
sb.WriteString(str);
}
}
private static void WriteBase64(
StringOutput writer,
byte[] data,
int offset,
int count,
bool classic,
bool padding)
{
if (writer == null)
{
throw new ArgumentNullException(nameof(writer));
}
if (offset < 0)
{
throw new ArgumentException("offset(" + offset + ") is less than " +
"0 ");
}
if (offset > data.Length)
{
throw new ArgumentException("offset(" + offset + ") is more than " +
data.Length);
}
if (count < 0)
{
throw new ArgumentException("count(" + count + ") is less than " +
"0 ");
}
if (count > data.Length)
{
throw new ArgumentException("count(" + count + ") is more than " +
data.Length);
}
if (data.Length - offset < count)
{
throw new ArgumentException("data's length minus " + offset + "(" +
(data.Length - offset) + ") is less than " + count);
}
string alphabet = classic ? Base64Classic : Base64URL;
int length = offset + count;
int i = offset;
var buffer = new char[4];
for (i = offset; i < (length - 2); i += 3)
{
buffer[0] = (char)alphabet[(data[i] >> 2) & 63];
buffer[1] = (char)alphabet[((data[i] & 3) << 4) +
((data[i + 1] >> 4) & 15)];
buffer[2] = (char)alphabet[((data[i + 1] & 15) << 2) + ((data[i +
2] >> 6) & 3)];
buffer[3] = (char)alphabet[data[i + 2] & 63];
writer.WriteCodePoint((int)buffer[0]);
writer.WriteCodePoint((int)buffer[1]);
writer.WriteCodePoint((int)buffer[2]);
writer.WriteCodePoint((int)buffer[3]);
}
int lenmod3 = count % 3;
if (lenmod3 != 0)
{
i = length - lenmod3;
buffer[0] = (char)alphabet[(data[i] >> 2) & 63];
if (lenmod3 == 2)
{
buffer[1] = (char)alphabet[((data[i] & 3) << 4) + ((data[i + 1] >>
4) & 15)];
buffer[2] = (char)alphabet[(data[i + 1] & 15) << 2];
writer.WriteCodePoint((int)buffer[0]);
writer.WriteCodePoint((int)buffer[1]);
writer.WriteCodePoint((int)buffer[2]);
if (padding)
{
writer.WriteCodePoint((int)'=');
}
}
else
{
buffer[1] = (char)alphabet[(data[i] & 3) << 4];
writer.WriteCodePoint((int)buffer[0]);
writer.WriteCodePoint((int)buffer[1]);
if (padding)
{
writer.WriteCodePoint((int)'=');
writer.WriteCodePoint((int)'=');
}
}
}
}
internal static void WriteJSONToInternal(
CBORObject obj,
StringOutput writer,
JSONOptions options)
{
if (obj.IsNumber)
{
writer.WriteString(CBORNumber.FromCBORObject(obj).ToJSONString());
return;
}
switch (obj.Type)
{
case CBORType.Integer:
case CBORType.FloatingPoint: {
CBORObject untaggedObj = obj.Untag();
writer.WriteString(
CBORNumber.FromCBORObject(untaggedObj).ToJSONString());
break;
}
case CBORType.Boolean: {
if (obj.IsTrue)
{
writer.WriteString("true");
return;
}
if (obj.IsFalse)
{
writer.WriteString("false");
return;
}
return;
}
case CBORType.SimpleValue: {
writer.WriteString("null");
return;
}
case CBORType.ByteString: {
var byteArray = obj.GetByteString();
if (byteArray.Length == 0)
{
writer.WriteString("\"\"");
return;
}
writer.WriteCodePoint((int)'\"');
if (obj.HasTag(22))
{
// Base64 with padding
Base64.WriteBase64(
writer,
byteArray,
0,
byteArray.Length,
true);
}
else if (obj.HasTag(23))
{
// Write as base16
for (int i = 0; i < byteArray.Length; ++i)
{
writer.WriteCodePoint((int)Hex16[(byteArray[i] >> 4) & 15]);
writer.WriteCodePoint((int)Hex16[byteArray[i] & 15]);
}
}
else
{
// Base64url no padding
Base64.WriteBase64URL(
writer,
byteArray,
0,
byteArray.Length,
false);
}
writer.WriteCodePoint((int)'\"');
break;
}
case CBORType.TextString: {
var thisString = obj.AsString();
if (thisString.Length == 0)
{
writer.WriteString("\"\"");
return;
}
writer.WriteCodePoint((int)'\"');
WriteJSONStringUnquoted(thisString, writer, options);
writer.WriteCodePoint((int)'\"');
break;
}
case CBORType.Array: {
var first = true;
writer.WriteCodePoint((int)'[');
foreach (CBORObject i in obj.AsList())
{
if (!first)
{
writer.WriteCodePoint((int)',');
}
WriteJSONToInternal(i, writer, options);
first = false;
}
writer.WriteCodePoint((int)']');
break;
}
case CBORType.Map: {
var first = true;
var hasNonStringKeys = false;
IDictionary <CBORObject, CBORObject> objMap = obj.AsMap();
foreach (KeyValuePair <CBORObject, CBORObject> entry in objMap)
{
CBORObject key = entry.Key;
if (key.Type != CBORType.TextString ||
key.IsTagged)
{
// treat a non-text-string item or a tagged item
// as having non-string keys
hasNonStringKeys = true;
break;
}
}
if (!hasNonStringKeys)
{
writer.WriteCodePoint((int)'{');
foreach (KeyValuePair <CBORObject, CBORObject> entry in objMap)
{
CBORObject key = entry.Key;
CBORObject value = entry.Value;
if (!first)
{
writer.WriteCodePoint((int)',');
}
writer.WriteCodePoint((int)'\"');
WriteJSONStringUnquoted(key.AsString(), writer, options);
writer.WriteCodePoint((int)'\"');
writer.WriteCodePoint((int)':');
WriteJSONToInternal(value, writer, options);
first = false;
}
writer.WriteCodePoint((int)'}');
}
else
{
// This map has non-string keys
IDictionary <string, CBORObject> stringMap = new
Dictionary <string, CBORObject>();
// Copy to a map with String keys, since
// some keys could be duplicates
// when serialized to strings
foreach (KeyValuePair <CBORObject, CBORObject> entry in objMap)
{
CBORObject key = entry.Key;
CBORObject value = entry.Value;
string str = (key.Type == CBORType.TextString) ?
key.AsString() : key.ToJSONString();
if (stringMap.ContainsKey(str))
{
throw new
CBORException("Duplicate JSON string equivalents of map keys");
}
stringMap[str] = value;
}
first = true;
writer.WriteCodePoint((int)'{');
foreach (KeyValuePair <string, CBORObject> entry in stringMap)
{
string key = entry.Key;
CBORObject value = entry.Value;
if (!first)
{
writer.WriteCodePoint((int)',');
}
writer.WriteCodePoint((int)'\"');
WriteJSONStringUnquoted((string)key, writer, options);
writer.WriteCodePoint((int)'\"');
writer.WriteCodePoint((int)':');
WriteJSONToInternal(value, writer, options);
first = false;
}
writer.WriteCodePoint((int)'}');
}
break;
}
default: throw new InvalidOperationException("Unexpected item type");
}
}
private static void WriteBase64(
StringOutput writer,
byte[] data,
int offset,
int count,
string alphabet,
bool padding)
{
if (writer == null) {
throw new ArgumentNullException("writer");
}
if (offset < 0) {
throw new ArgumentException("offset (" + offset + ") is less than " +
"0 ");
}
if (offset > data.Length) {
throw new ArgumentException("offset (" + offset + ") is more than " +
data.Length);
}
if (count < 0) {
throw new ArgumentException("count (" + count + ") is less than " +
"0 ");
}
if (count > data.Length) {
throw new ArgumentException("count (" + count + ") is more than " +
data.Length);
}
if (data.Length - offset < count) {
throw new ArgumentException("data's length minus " + offset + " (" +
(data.Length - offset) + ") is less than " + count);
}
int length = offset + count;
int i = offset;
var buffer = new char[4];
for (i = offset; i < (length - 2); i += 3) {
buffer[0] = (char)alphabet[(data[i] >> 2) & 63];
buffer[1] = (char)alphabet[((data[i] & 3) << 4) +
((data[i + 1] >> 4) & 15)];
buffer[2] = (char)alphabet[((data[i + 1] & 15) << 2) + ((data[i +
2] >> 6) & 3)];
buffer[3] = (char)alphabet[data[i + 2] & 63];
writer.WriteCodePoint((int)buffer[0]);
writer.WriteCodePoint((int)buffer[1]);
writer.WriteCodePoint((int)buffer[2]);
writer.WriteCodePoint((int)buffer[3]);
}
int lenmod3 = count % 3;
if (lenmod3 != 0) {
i = length - lenmod3;
buffer[0] = (char)alphabet[(data[i] >> 2) & 63];
if (lenmod3 == 2) {
buffer[1] = (char)alphabet[((data[i] & 3) << 4) + ((data[i + 1] >>
4) & 15)];
buffer[2] = (char)alphabet[(data[i + 1] & 15) << 2];
writer.WriteCodePoint((int)buffer[0]);
writer.WriteCodePoint((int)buffer[1]);
writer.WriteCodePoint((int)buffer[2]);
if (padding) {
writer.WriteCodePoint((int)'=');
}
} else {
buffer[1] = (char)alphabet[(data[i] & 3) << 4];
writer.WriteCodePoint((int)buffer[0]);
writer.WriteCodePoint((int)buffer[1]);
if (padding) {
writer.WriteCodePoint((int)'=');
writer.WriteCodePoint((int)'=');
}
}
}
}
