Source file src/pkg/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 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	
    42		// Remove all but one leading slash.
    43		for len(path) > 1 && path[0] == '/' && path[1] == '/' {
    44			path = path[1:]
    45		}
    46	
    47		i := len(path) - 1
    48	
    49		// Remove trailing slashes.
    50		for ; i > 0 && path[i] == '/'; i-- {
    51			path = path[:i]
    52		}
    53	
    54		// if no slashes in path, base is path
    55		basename := path
    56	
    57		// Remove leading directory path
    58		for i--; i >= 0; i-- {
    59			if path[i] == '/' {
    60				if i == 0 {
    61					dirname = path[:1]
    62				} else {
    63					dirname = path[:i]
    64				}
    65				basename = path[i+1:]
    66				break
    67			}
    68		}
    69	
    70		return dirname, basename
    71	}
    72	
    73	func fixRootDirectory(p string) string {
    74		return p
    75	}
    76	

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