name: "extra space",
			in: `package p
import (
	"a"


	"b"
	"c"


	"d"
)
`,
			want: []string{"a", "b", "d"},
		},
		{
			name: "line comment",
			in: `package p
import (
	"a" // comment
	"b" // comment

	"c"
)`,
			want: []string{"a", "c"},
		},
		{
			name: "named import",
			in: `package p
import (
	"a"
	n "b"

	m "c"
	"d"
)`,

-- input --

	1. This list
	2. Starts the comment
	3. And also has a blank line before it.

All of which is a little weird.
-- gofmt --
 1. This list
 2. Starts the comment
 3. And also has a blank line before it.

	stateJSRegexp
	// stateJSBlockCmt occurs inside a JavaScript /* block comment */.
	stateJSBlockCmt
	// stateJSLineCmt occurs inside a JavaScript // line comment.
	stateJSLineCmt
	// stateJSHTMLOpenCmt occurs inside a JavaScript <!-- HTML-like comment.
	stateJSHTMLOpenCmt
	// stateJSHTMLCloseCmt occurs inside a JavaScript --> HTML-like comment.
	stateJSHTMLCloseCmt
	// stateCSS occurs inside a <style> element or style attribute.

			}
			// Add comments for all sample types in profile.
			comment = "[" + strings.Join(st, " | ") + "]"
		case n == "source_path":
			continue
		case n == "nodecount" && v == "-1":
			comment = "default"
		case v == "":
			// Add quotes for empty values.
			v = `""`
		}
		if comment != "" {
			comment = commentStart + " " + comment
		}
		args = append(args, fmt.Sprintf("  %-25s = %-20s %s", n, v, comment))

// constraints and containing a "//go:binary-only-package" comment. Like a
// build constraint, this comment appeared at the top of a file, preceded
// only by blank lines and other line comments and with a blank line
// following the comment, to separate it from the package documentation.
// Unlike build constraints, this comment is only recognized in non-test
// Go source files.
//

	var list []*ast.Comment
	endline = p.file.Line(p.pos)
	for p.tok == token.COMMENT && p.file.Line(p.pos) <= endline+n {
		var comment *ast.Comment
		comment, endline = p.consumeComment()
		list = append(list, comment)
	}

	// add comment group to the comments list
	comments = &ast.CommentGroup{List: list}
	p.comments = append(p.comments, comments)

	return
}

/*
Source containing CR/LF line endings.
The gofmt'ed output must only have LF
line endings.
Test case for issue 3961.
*/
package main

func main() {
	// line comment
	println("hello, world!") // another line comment
	println()

L1:/*
L2:Source containing CR/LF line endings.
L3:The gofmt'ed output must only have LF
L4:line endings.
L5:Test case for issue 3961.
L6:*/
L7:package main
L8:
L9:func main() {
L10:	// line comment
L11:	println("hello, world!") // another line comment
L12:	println()
L13:}
...

	add element ip testing no-endpoint-nodeports { tcp . 3001 comment "ns2/svc2:p80" : drop }
	add element ip testing no-endpoint-services { 1.2.3.4 . tcp . 80 comment "ns2/svc2:p80" : drop }
	add element ip testing no-endpoint-services { 192.168.99.22 . tcp . 80 comment "ns2/svc2:p80" : drop }
	`)

var testExpected = dedent.Dedent(`
	add table ip testing { comment "rules for kube-proxy" ; }

// symbolic links, and so on.
//
// # Txtar format
//
// A txtar archive is zero or more comment lines and then a sequence of file entries.
// Each file entry begins with a file marker line of the form "-- FILENAME --"
// and is followed by zero or more file content lines making up the file data.
// The comment or file content ends at the next file marker line.
// The file marker line must begin with the three-byte sequence "-- "