libgo/go/os/path_unix.go

   1 // Copyright 2011 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 // +build aix darwin dragonfly freebsd hurd js,wasm linux nacl netbsd openbsd solaris
   6
   7 package os
   8
   9 const (
  10         PathSeparator     = '/' // OS-specific path separator
  11         PathListSeparator = ':' // OS-specific path list separator
  12 )
  13
  14 // IsPathSeparator reports whether c is a directory separator character.
  15 func IsPathSeparator(c uint8) bool {
  16         return PathSeparator == c
  17 }
  18
  19 // basename removes trailing slashes and the leading directory name from path name.
  20 func basename(name string) string {
  21         i := len(name) - 1
  22         // Remove trailing slashes
  23         for ; i > 0 && name[i] == '/'; i-- {
  24                 name = name[:i]
  25         }
  26         // Remove leading directory name
  27         for i--; i >= 0; i-- {
  28                 if name[i] == '/' {
  29                         name = name[i+1:]
  30                         break
  31                 }
  32         }
  33
  34         return name
  35 }
  36
  37 // splitPath returns the base name and parent directory.
  38 func splitPath(path string) (string, string) {
  39         // if no better parent is found, the path is relative from "here"
  40         dirname := "."
  41         // if no slashes in path, base is path
  42         basename := path
  43
  44         i := len(path) - 1
  45
  46         // Remove trailing slashes
  47         for ; i > 0 && path[i] == '/'; i-- {
  48                 path = path[:i]
  49         }
  50
  51         // Remove leading directory path
  52         for i--; i >= 0; i-- {
  53                 if path[i] == '/' {
  54                         dirname = path[:i+1]
  55                         basename = path[i+1:]
  56                         break
  57                 }
  58         }
  59
  60         return dirname, basename
  61 }
  62
  63 func fixRootDirectory(p string) string {
  64         return p
  65 }