56 lines
1000 B
Go
56 lines
1000 B
Go
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package zerolog
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import (
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"bytes"
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"unicode/utf8"
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)
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const hex = "0123456789abcdef"
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func writeJSONString(buf *bytes.Buffer, s string) {
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buf.WriteByte('"')
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for i := 0; i < len(s); {
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if b := s[i]; b < utf8.RuneSelf {
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switch b {
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case '"', '\\':
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buf.WriteByte('\\')
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buf.WriteByte(b)
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case '\b':
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buf.WriteByte('\\')
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buf.WriteByte('b')
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case '\f':
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buf.WriteByte('\\')
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buf.WriteByte('f')
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case '\n':
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buf.WriteByte('\\')
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buf.WriteByte('n')
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case '\r':
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buf.WriteByte('\\')
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buf.WriteByte('r')
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case '\t':
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buf.WriteByte('\\')
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buf.WriteByte('t')
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default:
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if b >= 0x20 {
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buf.WriteByte(b)
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} else {
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buf.WriteString(`\u00`)
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buf.WriteByte(hex[b>>4])
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buf.WriteByte(hex[b&0xF])
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}
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}
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i++
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continue
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}
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r, size := utf8.DecodeRuneInString(s[i:])
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if r == utf8.RuneError && size == 1 {
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buf.WriteString(`\ufffd`)
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i++
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continue
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}
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buf.WriteString(s[i : i+size])
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i += size
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}
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buf.WriteByte('"')
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}
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