//	// comment
		//	INST args [// printed form] [// hex encoding]
		parts := strings.Split(line, "//")
		printed := strings.TrimSpace(parts[0])
		if printed == "" || strings.HasSuffix(printed, ":") { // empty or label
			continue
		}
		seq++

		var hexes string
		switch len(parts) {
		default:
			t.Errorf("%s:%d: unable to understand comments: %s", input, lineno, line)
		case 1:

pkg go/doc/comment, type DocLink struct, Recv string #51082
pkg go/doc/comment, type DocLink struct, Text []Text #51082
pkg go/doc/comment, type Heading struct #51082
pkg go/doc/comment, type Heading struct, Text []Text #51082
pkg go/doc/comment, type Italic string #51082
pkg go/doc/comment, type Link struct #51082
pkg go/doc/comment, type Link struct, Auto bool #51082
pkg go/doc/comment, type Link struct, Text []Text #51082

#                 ; [group-name] = map:{
#                     ; groupComment=[comment]
#                     ; elementList=list:{[the list of classification element's name]}
#                 }
#             }
#         }
#         # classification elements for implicit classification
#         ; map:{
#             ; code=[code]; name=[name]; alias=[alias]; comment=[comment]
#             ; sisterCode=[code or code-list]; subItemMap=map:{[free-map]}

		},
		// Keys and input order of k=v is same.
		{
			input: `connection_string="host=localhost port=2832" comment="really long comment"`,
			keys:  []string{"connection_string", "comment"},
			expectedFields: map[string]struct{}{
				`connection_string="host=localhost port=2832"`: {},
				`comment="really long comment"`:                {},
			},
		},

If your contribution is rejected we will close the pull request with a comment
explaining why. This decision isn't always final: if you feel we have
misunderstood your intended change or otherwise think that we should reconsider
then please continue the conversation with a comment on the pull request and
we'll do our best to address any further points you raise.

Contributing as part of a class

 * </ul>
 *
 * <h3>Format Preservation</h3>
 * <ul>
 *   <li><strong>Whitespace Preservation</strong>: Maintains original formatting when removing elements</li>
 *   <li><strong>Comment Preservation</strong>: Preserves XML comments and processing instructions</li>
 *   <li><strong>Line Separator Handling</strong>: Uses system-appropriate line separators</li>
 * </ul>
 */
public abstract class AbstractUpgradeGoal implements Goal {

    # o aliasDelimiterInDbComment: (NotRequired - Default '')
    #  If the alias exists in its DB comment like as follows:
    #    member name : The name of member's full name
    #  you can use the alias in DBFlute world, java-doc, SchemaHTML...
    #  DB comment which does not have the delimiter is not treated
    #  as alias, treated as description (real comment).
    #  But you can change it by 'isDbCommentOnAliasBasis'.
    #

     * The value is, e.g. Fess <br>
     * comment: The title of the domain for logging and display.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getDomainTitle();

    /**
     * Get the value for the key 'search_engine.type'. <br>
     * The value is, e.g. default <br>
     * comment: The type of search engine backend (e.g., default, opensearch).

            connection is lost. Must be a non-negative integer.
            """
        ),
    ] = None
    comment: Annotated[
        str | None,
        Doc(
            """
            Optional comment line(s).

            Comment lines start with `:` in the SSE wire format and are ignored by
            `EventSource` clients. Useful for keep-alive pings to prevent

  },
  {
    "comment": "Label with trailing hyphen",
    "input": "x-.xn--zca",
    "output": "x-.xn--zca"
  },
  {
    "input": "x-.ß",
    "output": "x-.xn--zca"
  },
  {
    "comment": "Empty labels",
    "input": "x..xn--zca",
    "output": "x..xn--zca"
  },
  {
    "input": "x..ß",
    "output": "x..xn--zca"
  },
  {
    "comment": "Invalid Punycode",
    "input": "xn--a",