github.com/twelsh-aw/go/src@v0.0.0-20230516233729-a56fe86a7c81/path/filepath/example_unix_test.go (about)

     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  }