95 lines
2.4 KiB
Go
95 lines
2.4 KiB
Go
package cbor
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import "fmt"
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// AppendStrings encodes and adds an array of strings to the dst byte array.
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func (e Encoder) AppendStrings(dst []byte, vals []string) []byte {
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major := majorTypeArray
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l := len(vals)
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if l <= additionalMax {
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lb := byte(l)
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dst = append(dst, byte(major|lb))
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} else {
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dst = appendCborTypePrefix(dst, major, uint64(l))
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}
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for _, v := range vals {
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dst = e.AppendString(dst, v)
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}
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return dst
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}
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// AppendString encodes and adds a string to the dst byte array.
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func (Encoder) AppendString(dst []byte, s string) []byte {
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major := majorTypeUtf8String
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l := len(s)
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if l <= additionalMax {
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lb := byte(l)
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dst = append(dst, byte(major|lb))
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} else {
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dst = appendCborTypePrefix(dst, majorTypeUtf8String, uint64(l))
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}
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return append(dst, s...)
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}
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// AppendStringers encodes and adds an array of Stringer values
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// to the dst byte array.
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func (e Encoder) AppendStringers(dst []byte, vals []fmt.Stringer) []byte {
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if len(vals) == 0 {
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return e.AppendArrayEnd(e.AppendArrayStart(dst))
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}
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dst = e.AppendArrayStart(dst)
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dst = e.AppendStringer(dst, vals[0])
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if len(vals) > 1 {
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for _, val := range vals[1:] {
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dst = e.AppendStringer(dst, val)
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}
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}
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return e.AppendArrayEnd(dst)
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}
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// AppendStringer encodes and adds the Stringer value to the dst
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// byte array.
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func (e Encoder) AppendStringer(dst []byte, val fmt.Stringer) []byte {
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if val == nil {
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return e.AppendNil(dst)
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}
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return e.AppendString(dst, val.String())
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}
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// AppendBytes encodes and adds an array of bytes to the dst byte array.
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func (Encoder) AppendBytes(dst, s []byte) []byte {
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major := majorTypeByteString
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l := len(s)
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if l <= additionalMax {
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lb := byte(l)
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dst = append(dst, byte(major|lb))
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} else {
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dst = appendCborTypePrefix(dst, major, uint64(l))
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}
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return append(dst, s...)
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}
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// AppendEmbeddedJSON adds a tag and embeds input JSON as such.
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func AppendEmbeddedJSON(dst, s []byte) []byte {
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major := majorTypeTags
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minor := additionalTypeEmbeddedJSON
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// Append the TAG to indicate this is Embedded JSON.
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dst = append(dst, byte(major|additionalTypeIntUint16))
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dst = append(dst, byte(minor>>8))
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dst = append(dst, byte(minor&0xff))
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// Append the JSON Object as Byte String.
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major = majorTypeByteString
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l := len(s)
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if l <= additionalMax {
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lb := byte(l)
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dst = append(dst, byte(major|lb))
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} else {
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dst = appendCborTypePrefix(dst, major, uint64(l))
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}
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return append(dst, s...)
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}
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