libgo/go/path/filepath/example_unix_test.go

   1 // Copyright 2013 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 //go:build !windows && !plan9
   6
   7 package filepath_test
   8
   9 import (
  10         "fmt"
  11         "path/filepath"
  12 )
  13
  14 func ExampleSplitList() {
  15         fmt.Println("On Unix:", filepath.SplitList("/a/b/c:/usr/bin"))
  16         // Output:
  17         // On Unix: [/a/b/c /usr/bin]
  18 }
  19
  20 func ExampleRel() {
  21         paths := []string{
  22                 "/a/b/c",
  23                 "/b/c",
  24                 "./b/c",
  25         }
  26         base := "/a"
  27
  28         fmt.Println("On Unix:")
  29         for _, p := range paths {
  30                 rel, err := filepath.Rel(base, p)
  31                 fmt.Printf("%q: %q %v\n", p, rel, err)
  32         }
  33
  34         // Output:
  35         // On Unix:
  36         // "/a/b/c": "b/c" <nil>
  37         // "/b/c": "../b/c" <nil>
  38         // "./b/c": "" Rel: can't make ./b/c relative to /a
  39 }
  40
  41 func ExampleSplit() {
  42         paths := []string{
  43                 "/home/arnie/amelia.jpg",
  44                 "/mnt/photos/",
  45                 "rabbit.jpg",
  46                 "/usr/local//go",
  47         }
  48         fmt.Println("On Unix:")
  49         for _, p := range paths {
  50                 dir, file := filepath.Split(p)
  51                 fmt.Printf("input: %q\n\tdir: %q\n\tfile: %q\n", p, dir, file)
  52         }
  53         // Output:
  54         // On Unix:
  55         // input: "/home/arnie/amelia.jpg"
  56         //      dir: "/home/arnie/"
  57         //      file: "amelia.jpg"
  58         // input: "/mnt/photos/"
  59         //      dir: "/mnt/photos/"
  60         //      file: ""
  61         // input: "rabbit.jpg"
  62         //      dir: ""
  63         //      file: "rabbit.jpg"
  64         // input: "/usr/local//go"
  65         //      dir: "/usr/local//"
  66         //      file: "go"
  67 }
  68
  69 func ExampleJoin() {
  70         fmt.Println("On Unix:")
  71         fmt.Println(filepath.Join("a", "b", "c"))
  72         fmt.Println(filepath.Join("a", "b/c"))
  73         fmt.Println(filepath.Join("a/b", "c"))
  74         fmt.Println(filepath.Join("a/b", "/c"))
  75
  76         fmt.Println(filepath.Join("a/b", "../../../xyz"))
  77
  78         // Output:
  79         // On Unix:
  80         // a/b/c
  81         // a/b/c
  82         // a/b/c
  83         // a/b/c
  84         // ../xyz
  85 }
  86
  87 func ExampleMatch() {
  88         fmt.Println("On Unix:")
  89         fmt.Println(filepath.Match("/home/catch/*", "/home/catch/foo"))
  90         fmt.Println(filepath.Match("/home/catch/*", "/home/catch/foo/bar"))
  91         fmt.Println(filepath.Match("/home/?opher", "/home/gopher"))
  92         fmt.Println(filepath.Match("/home/\\*", "/home/*"))
  93
  94         // Output:
  95         // On Unix:
  96         // true <nil>
  97         // false <nil>
  98         // true <nil>
  99         // true <nil>
 100 }
 101
 102 func ExampleBase() {
 103         fmt.Println("On Unix:")
 104         fmt.Println(filepath.Base("/foo/bar/baz.js"))
 105         fmt.Println(filepath.Base("/foo/bar/baz"))
 106         fmt.Println(filepath.Base("/foo/bar/baz/"))
 107         fmt.Println(filepath.Base("dev.txt"))
 108         fmt.Println(filepath.Base("../todo.txt"))
 109         fmt.Println(filepath.Base(".."))
 110         fmt.Println(filepath.Base("."))
 111         fmt.Println(filepath.Base("/"))
 112         fmt.Println(filepath.Base(""))
 113
 114         // Output:
 115         // On Unix:
 116         // baz.js
 117         // baz
 118         // baz
 119         // dev.txt
 120         // todo.txt
 121         // ..
 122         // .
 123         // /
 124         // .
 125 }
 126
 127 func ExampleDir() {
 128         fmt.Println("On Unix:")
 129         fmt.Println(filepath.Dir("/foo/bar/baz.js"))
 130         fmt.Println(filepath.Dir("/foo/bar/baz"))
 131         fmt.Println(filepath.Dir("/foo/bar/baz/"))
 132         fmt.Println(filepath.Dir("/dirty//path///"))
 133         fmt.Println(filepath.Dir("dev.txt"))
 134         fmt.Println(filepath.Dir("../todo.txt"))
 135         fmt.Println(filepath.Dir(".."))
 136         fmt.Println(filepath.Dir("."))
 137         fmt.Println(filepath.Dir("/"))
 138         fmt.Println(filepath.Dir(""))
 139
 140         // Output:
 141         // On Unix:
 142         // /foo/bar
 143         // /foo/bar
 144         // /foo/bar/baz
 145         // /dirty/path
 146         // .
 147         // ..
 148         // .
 149         // .
 150         // /
 151         // .
 152 }
 153
 154 func ExampleIsAbs() {
 155         fmt.Println("On Unix:")
 156         fmt.Println(filepath.IsAbs("/home/gopher"))
 157         fmt.Println(filepath.IsAbs(".bashrc"))
 158         fmt.Println(filepath.IsAbs(".."))
 159         fmt.Println(filepath.IsAbs("."))
 160         fmt.Println(filepath.IsAbs("/"))
 161         fmt.Println(filepath.IsAbs(""))
 162
 163         // Output:
 164         // On Unix:
 165         // true
 166         // false
 167         // false
 168         // false
 169         // true
 170         // false
 171 }