mleku
bbebbe2b02
Introduced `lol.Tracer` for function entry/exit logging across various packages. This improves traceability and debugging of function executions while preserving existing behavior. Removed unused files `doc.go` and `nothing.go` to clean up the repository.
42 lines
1.0 KiB
Go
42 lines
1.0 KiB
Go
package json
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import (
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"realy.lol/chk"
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"realy.lol/errorf"
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"realy.lol/hex"
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"realy.lol/lol"
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"realy.lol/text"
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)
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// Hex is a string representing binary data encoded as hexadecimal.
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type Hex struct{ V []byte }
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// Marshal a byte string into hexadecimal wrapped in double quotes.
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func (h *Hex) Marshal(dst []byte) (b []byte) {
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lol.Tracer("Marshal", dst)
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defer func() { lol.Tracer("end Marshal", b) }()
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b = dst
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b = append(b, '"')
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b = hex.EncAppend(b, h.V)
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b = append(b, '"')
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return
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}
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// Unmarshal a string wrapped in double quotes that should be a hexadecimal string. If it fails,
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// it will return an error.
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func (h *Hex) Unmarshal(dst []byte) (rem []byte, err error) {
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lol.Tracer("Unmarshal", dst)
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defer func() { lol.Tracer("end Unmarshal", rem, err) }()
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var c []byte
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if c, rem, err = text.UnmarshalQuoted(dst); chk.E(err) {
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return
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}
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h.V = make([]byte, len(c)/2)
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var n int
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if n, err = hex.DecBytes(h.V, c); chk.E(err) {
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err = errorf.E("failed to decode hex at position %d: %s", n, err)
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return
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}
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return
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}
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