Function skipCommentsAndSpace

server/usersecrets/classify.go:175–208

skipCommentsAndSpace removes leading whitespace, line comments (--) and block comments (/* */, nested) from s. Returns ok=false on an unterminated block comment.

(s string)

// block comments (/* */, nested) from s. Returns ok=false on an unterminated
// block comment.
func skipCommentsAndSpace(s string) (string, bool) {
	for {
		s = strings.TrimLeft(s, " \t\r\n")
		switch {
		case strings.HasPrefix(s, "--"):
			idx := strings.IndexByte(s, '\n')
			if idx < 0 {
				return "", true
			}
			s = s[idx+1:]
		case strings.HasPrefix(s, "/*"):
			depth := 1
			i := 2
			for i < len(s) && depth > 0 {
				switch {
				case strings.HasPrefix(s[i:], "/*"):
					depth++
					i += 2
				case strings.HasPrefix(s[i:], "*/"):
					depth--
					i += 2
				default:
					i++
				}
			}
			if depth > 0 {
				return "", false
			}
			s = s[i:]
		default:
			return s, true
		}
	}
}

// hasTrailingStatement reports whether query contains a top-level semicolon
// (outside string literals, quoted identifiers, and comments) followed by