// Path rooted in the current drive.
		return false
	}
	if stringslite.IndexByte(path, ':') >= 0 {
		// Colons are only valid when marking a drive letter ("C:foo").
		// Rejecting any path with a colon is conservative but safe.
		return false
	}
	hasDots := false // contains . or .. path elements
	for p := path; p != ""; {
		var part string
		part, p, _ = cutPath(p)
		if part == "." || part == ".." {

        <!--<module name="WhitespaceAround">-->
            <!-- everything except { and } -->

# bad patterns are reported (for more bad patterns, see TestGOVCSErrors)
env GOVCS='git'
! go get github.com/google/go-cmp
stderr '^go: github.com/google/go-cmp: malformed entry in GOVCS \(missing colon\): "git"$'

env GOVCS=github.com:hg,github.com:git
! go get github.com/google/go-cmp
stderr '^go: github.com/google/go-cmp: unreachable pattern in GOVCS: "github.com:git" after "github.com:hg"$'

// Go tree. The default path is the value of the GOPATH environment
// variable, interpreted as a path list appropriate to the operating system
// (on Unix, the variable is a colon-separated string;
// on Windows, a semicolon-separated string;
// on Plan 9, a list).
//
// Each directory listed in the Go path must have a prescribed structure:
//

        .add("foo : bak") // Name trailing whitespace is trimmed.
        .add("\tkey\t:\tvalue\t") // '\t' also counts as whitespace
        .add("ping:  pong  ") // Value whitespace is trimmed.
        .add("kit:kat") // Space after colon is not required.
        .build()
    assertThat(headers.values("foo")).containsExactly("bar", "baz", "bak")
    assertThat(headers.values("key")).containsExactly("value")

	if g, w := len(certDirs), len(rootPEMs); g != w {
		t.Fatalf("Failed sanity check: len(certsDir)=%d is not equal to len(rootsPEMS)=%d", g, w)
	}

	// Now finally concatenate them with a colon.
	colonConcatCertDirs := strings.Join(certDirs, ":")
	os.Setenv(certDirEnv, colonConcatCertDirs)
	gotPool, err := loadSystemRoots()
	if err != nil {
		t.Fatalf("Failed to load system roots: %v", err)
	}

	// e.g. Forwarded: for=192.0.2.60;proto=https;by=203.0.113.43
	forwarded = http.CanonicalHeaderKey("Forwarded")
	// Allows for a sub-match of the first value after 'for=' to the next
	// comma, semi-colon or space. The match is case-insensitive.
	forRegex = regexp.MustCompile(`(?i)(?:for=)([^(;|,| )]+)(.*)`)
	// Allows for a sub-match for the first instance of scheme (http|https)
	// prefixed by 'proto='. The match is case-insensitive.

		{
			name:     "IPv6 missing brackets",
			input:    "2001:db8::20:9080",
			expected: "",
			errStr:   "address 2001:db8::20:9080: too many colons in address",
			lookup:   nil,
		},
		{
			name:     "Colon, but no port",
			input:    "localhost:",
			expected: "",
			errStr:   "",
			lookup:   nil,
		},
		{
			name:     "Missing port",
			input:    "localhost",
			expected: "",

fail), and then re-running the tests using the devel toolchain.


- Regexps comments syntax

Instructions to match are specified inside plain comments that start
with an architecture tag, followed by a colon and a quoted Go-style
regexp to be matched. For example, the following test:

  func Sqrt(x float64) float64 {
  	   // amd64:"SQRTSD"
  	   // arm64:"FSQRTD"
  	   return math.Sqrt(x)
  }

	t.list = append(t.list, timestamp{time.Now(), strings.Join(labels, ":"), start})
}

// Start marks the beginning of a new phase and implicitly stops the previous phase.
// The phase name is the colon-separated concatenation of the labels.
func (t *Timings) Start(labels ...string) {
	t.append(labels, true)
}

// Stop marks the end of a phase and implicitly starts a new phase.