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path: add IsAbs

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R=rsc, imkrasin, r
CC=golang-dev
https://golang.org/cl/1969042
This commit is contained in:
Ivan Krasin 2010-09-09 01:42:43 -04:00 committed by Russ Cox
parent e56c0555da
commit dfb2af6099
2 changed files with 30 additions and 0 deletions
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6
src/pkg/path/path.go
View File

@ -208,3 +208,9 @@ func Base(name string) string {
}
return name
}
// IsAbs returns true if the path is absolute.
func IsAbs(path string) bool {
// TODO: Add Windows support
return strings.HasPrefix(path, "/")
}

24
src/pkg/path/path_test.go
View File

@ -307,3 +307,27 @@ func TestBase(t *testing.T) {
}
}
}
type IsAbsTest struct {
path string
isAbs bool
}
var isAbsTests = []IsAbsTest{
IsAbsTest{"", false},
IsAbsTest{"/", true},
IsAbsTest{"/usr/bin/gcc", true},
IsAbsTest{"..", false},
IsAbsTest{"/a/../bb", true},
IsAbsTest{".", false},
IsAbsTest{"./", false},
IsAbsTest{"lala", false},
}
func TestIsAbs(t *testing.T) {
for _, test := range isAbsTests {
if r := IsAbs(test.path); r != test.isAbs {
t.Errorf("IsAbs(%q) = %v, want %v", test.path, r, test.isAbs)
}
}
}