limitations under the License.
*/

package cacher

import (
	"strings"
)

// hasPathPrefix returns true if the string matches pathPrefix exactly, or if is prefixed with pathPrefix at a path segment boundary
func hasPathPrefix(s, pathPrefix string) bool {
	// Short circuit if s doesn't contain the prefix at all
	if !strings.HasPrefix(s, pathPrefix) {
		return false
	}

// For portability, we allow ASCII case folding, so that hasPathPrefix("a/b/c", "A/B") is true.
// Similarly, we allow slash folding, so that hasPathPrefix("a/b/c", "a\\b") is true.
// We do not allow full Unicode case folding, for fear of causing more confusion
// or harm than good. (For an example of the kinds of things that can go wrong,
// see http://article.gmane.org/gmane.linux.kernel/1853266.)
func hasPathPrefix(s string, t string) bool {
	if len(t) > len(s) {

			if strings.Contains(name, vendorChar) {
				return false
			}
			name = replaceVendor(name, vendorChar)
		}
		return reg.MatchString(name)
	}
}

// hasPathPrefix reports whether the path s begins with the
// elements in prefix.
func hasPathPrefix(s, prefix string) bool {
	switch {
	default:
		return false
	case len(s) == len(prefix):
		return s == prefix
	case len(s) > len(prefix):

// license that can be found in the LICENSE file.

package str

import (
	"os"
	"path/filepath"
	"runtime"
	"strings"
)

// HasPathPrefix reports whether the slash-separated path s
// begins with the elements in prefix.
func HasPathPrefix(s, prefix string) bool {
	if len(s) == len(prefix) {
		return s == prefix
	}
	if prefix == "" {
		return true
	}
	if len(s) > len(prefix) {

		{"foo/bar", "foo/", true},
		{"foo/bar", "/foo", false},
		{"foo/bar", "foo/bar", true},
		{"foo/bar", "foo/bar/", false},
		{"foo/bar", "/foo/bar", false},
	} {
		got := HasPathPrefix(tt.s, tt.prefix)
		if got != tt.want {
			t.Errorf("HasPathPrefix(%q, %q) = %v; want %v", tt.s, tt.prefix, got, tt.want)
		}
	}
}

func TestTrimFilePathPrefixSlash(t *testing.T) {
	if os.PathSeparator != '/' {

	{"abc", "a", false},
	{"a/bc", "a", true},
	{"a", "a", true},
	{"a/bc", "a/", true},
}

func TestHasPathPrefix(t *testing.T) {
	testStringPairs(t, "hasPathPrefix", hasPathPrefixTests, hasPathPrefix)
}

type stringPairTest struct {
	in1 string
	in2 string
	out bool
}

func testStringPairs(t *testing.T, name string, tests []stringPairTest, f func(string, string) bool) {

		klog.V(5).Infof("checking %q against forbidden prefix %q", imp, forbidden)
		if hasPathPrefix(imp, forbidden) {
			klog.V(5).Infof("this import of %q is forbidden", imp)
			return DepForbidden
		}
	}
	for _, allowed := range r.AllowedPrefixes {
		klog.V(5).Infof("checking %q against allowed prefix %q", imp, allowed)
		if hasPathPrefix(imp, allowed) {
			klog.V(5).Infof("this import of %q is allowed", imp)
			return DepAllowed

func (fi dataFileInfo) Sys() any           { return nil }

func (fi dataFileInfo) String() string {
	return fs.FormatFileInfo(fi)
}

// hasPathPrefix reports whether the path s begins with the
// elements in prefix.
func hasPathPrefix(s, prefix string) bool {
	switch {
	default:
		return false
	case len(s) == len(prefix):
		return s == prefix
	case len(s) > len(prefix):

		base:   "/foobar/qux",
		pfx:    "/foo",
		expect: false,
	}, {
		base:   "/foo/bar/bat/qux/zrb",
		pfx:    "/foo/bar/bat",
		expect: true,
	}}

	for _, tc := range cases {
		ret := hasPathPrefix(tc.base, tc.pfx)
		if ret != tc.expect {
			t.Errorf("expected %v, got %v: (%q, %q)", tc.expect, ret, tc.base, tc.pfx)
		}
	}
}

func checkAllErrorStrings(t *testing.T, errs []error, expect []string) {

// using the mappings defined in vcsPaths.
func repoRootFromVCSPaths(importPath string, security web.SecurityMode, vcsPaths []*vcsPath) (*RepoRoot, error) {
	if str.HasPathPrefix(importPath, "example.net") {
		// TODO(rsc): This should not be necessary, but it's required to keep
		// tests like ../../testdata/script/mod_get_extra.txt from using the network.