Function Escape

escape.go:230–264

Escape returns in as a JSON string literal, including the surrounding quotation marks. SYS-REQ-014

(in string)

// quotation marks.
// SYS-REQ-014
func Escape(in string) []byte {
	var stackbuf [unescapeStackBufSize]byte
	out := stackbuf[:0]
	out = append(out, '"')

	start := 0
	for i := 0; i < len(in); i++ {
		c := in[i]
		if c >= 0x20 && c != '"' && c != '\\' {
			continue
		}

		out = append(out, in[start:i]...)
		switch c {
		case '"', '\\':
			out = append(out, '\\', c)
		case '\b':
			out = append(out, '\\', 'b')
		case '\f':
			out = append(out, '\\', 'f')
		case '\n':
			out = append(out, '\\', 'n')
		case '\r':
			out = append(out, '\\', 'r')
		case '\t':
			out = append(out, '\\', 't')
		default:
			out = append(out, '\\', 'u', '0', '0', lowerHex[c>>4], lowerHex[c&0x0f])
		}
		start = i + 1
	}

	out = append(out, in[start:]...)
	return append(out, '"')
}

// SetString replaces the value at keys with val encoded as a JSON string.
// SYS-REQ-009