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-rw-r--r--vendor/github.com/posener/complete/args.go102
1 files changed, 102 insertions, 0 deletions
diff --git a/vendor/github.com/posener/complete/args.go b/vendor/github.com/posener/complete/args.go
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1package complete
2
3import (
4 "os"
5 "path/filepath"
6 "strings"
7 "unicode"
8)
9
10// Args describes command line arguments
11type Args struct {
12 // All lists of all arguments in command line (not including the command itself)
13 All []string
14 // Completed lists of all completed arguments in command line,
15 // If the last one is still being typed - no space after it,
16 // it won't appear in this list of arguments.
17 Completed []string
18 // Last argument in command line, the one being typed, if the last
19 // character in the command line is a space, this argument will be empty,
20 // otherwise this would be the last word.
21 Last string
22 // LastCompleted is the last argument that was fully typed.
23 // If the last character in the command line is space, this would be the
24 // last word, otherwise, it would be the word before that.
25 LastCompleted string
26}
27
28// Directory gives the directory of the current written
29// last argument if it represents a file name being written.
30// in case that it is not, we fall back to the current directory.
31func (a Args) Directory() string {
32 if info, err := os.Stat(a.Last); err == nil && info.IsDir() {
33 return fixPathForm(a.Last, a.Last)
34 }
35 dir := filepath.Dir(a.Last)
36 if info, err := os.Stat(dir); err != nil || !info.IsDir() {
37 return "./"
38 }
39 return fixPathForm(a.Last, dir)
40}
41
42func newArgs(line string) Args {
43 var (
44 all []string
45 completed []string
46 )
47 parts := splitFields(line)
48 if len(parts) > 0 {
49 all = parts[1:]
50 completed = removeLast(parts[1:])
51 }
52 return Args{
53 All: all,
54 Completed: completed,
55 Last: last(parts),
56 LastCompleted: last(completed),
57 }
58}
59
60func splitFields(line string) []string {
61 parts := strings.Fields(line)
62 if len(line) > 0 && unicode.IsSpace(rune(line[len(line)-1])) {
63 parts = append(parts, "")
64 }
65 parts = splitLastEqual(parts)
66 return parts
67}
68
69func splitLastEqual(line []string) []string {
70 if len(line) == 0 {
71 return line
72 }
73 parts := strings.Split(line[len(line)-1], "=")
74 return append(line[:len(line)-1], parts...)
75}
76
77func (a Args) from(i int) Args {
78 if i > len(a.All) {
79 i = len(a.All)
80 }
81 a.All = a.All[i:]
82
83 if i > len(a.Completed) {
84 i = len(a.Completed)
85 }
86 a.Completed = a.Completed[i:]
87 return a
88}
89
90func removeLast(a []string) []string {
91 if len(a) > 0 {
92 return a[:len(a)-1]
93 }
94 return a
95}
96
97func last(args []string) string {
98 if len(args) == 0 {
99 return ""
100 }
101 return args[len(args)-1]
102}