Rfc7230 专有名词

1

a >= 'a' && a <= 'z' || a >= 'A' && a <= 'Z'

1

'\r'

1

"\r\n"

1

a >= '0' && a <= '9'

1

"

1

(hexadecimal 0-9/A-F/a-f)

1

'\t'

1

'\n'

1

OCTET (any 8-bit sequence of data)

1

' '

1
2

for c == ' ' || c == '\t' {
}