func appendHTMLEscape()

in internal/encoding/json/indent.go [19:37]

• 16 lines of code
• 9 McCabe index (conditional complexity)

func appendHTMLEscape(dst, src []byte) []byte {
	// The characters can only appear in string literals,
	// so just scan the string one byte at a time.
	start := 0
	for i, c := range src {
		if c == '<' || c == '>' || c == '&' {
			dst = append(dst, src[start:i]...)
			dst = append(dst, '\\', 'u', '0', '0', hex[c>>4], hex[c&0xF])
			start = i + 1
		}
		// Convert U+2028 and U+2029 (E2 80 A8 and E2 80 A9).
		if c == 0xE2 && i+2 < len(src) && src[i+1] == 0x80 && src[i+2]&^1 == 0xA8 {
			dst = append(dst, src[start:i]...)
			dst = append(dst, '\\', 'u', '2', '0', '2', hex[src[i+2]&0xF])
			start = i + len("\u2029")
		}
	}
	return append(dst, src[start:]...)
}