1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
|
// Package color contains all terminal color codes we know of.
package color
import (
"fmt"
"strings"
)
// FgColor is the text foreground color.
type FgColor string
// BgColor is the text background color.
type BgColor string
// Attribute of text.
type Attribute string
// The possible color variations.
const (
escape = "\x1b"
FgBlack FgColor = escape + "[30m"
FgRed FgColor = escape + "[31m"
FgGreen FgColor = escape + "[32m"
FgYellow FgColor = escape + "[33m"
FgBlue FgColor = escape + "[34m"
FgMagenta FgColor = escape + "[35m"
FgCyan FgColor = escape + "[36m"
FgWhite FgColor = escape + "[37m"
FgDefault FgColor = escape + "[39m"
BgBlack BgColor = escape + "[40m"
BgRed BgColor = escape + "[41m"
BgGreen BgColor = escape + "[42m"
BgYellow BgColor = escape + "[43m"
BgBlue BgColor = escape + "[44m"
BgMagenta BgColor = escape + "[45m"
BgCyan BgColor = escape + "[46m"
BgWhite BgColor = escape + "[47m"
BgDefault BgColor = escape + "[49m"
AttrNone Attribute = ""
AttrReset Attribute = escape + "[0m"
AttrBold Attribute = escape + "[1m"
AttrDim Attribute = escape + "[2m"
AttrItalic Attribute = escape + "[3m"
AttrUnderline Attribute = escape + "[4m"
AttrBlink Attribute = escape + "[5m"
AttrSlowBlink Attribute = escape + "[5m"
AttrRapidBlink Attribute = escape + "[6m"
AttrReverse Attribute = escape + "[7m"
AttrHidden Attribute = escape + "[8m"
)
// ColorNames is the list of all supported terminal colors.
var ColorNames = []string{
"Black", "Red", "Green", "Yellow", "Blue", "Magenta", "Cyan", "White", "Default",
}
// AttributeNames is the list of all supported terminal text attributes.
var AttributeNames = []string{
"Bold", "Dim", "Italic", "Underline", "Blink", "SlowBlink", "RapidBlink",
"Reverse", "Hidden", "None",
}
// ToFgColor converts a given string (e.g. from a config file) into a foreground
// color code.
func ToFgColor(s string) (FgColor, error) {
switch strings.ToLower(s) {
case "black":
return FgBlack, nil
case "red":
return FgRed, nil
case "green":
return FgGreen, nil
case "yellow":
return FgYellow, nil
case "blue":
return FgBlue, nil
case "magenta":
return FgMagenta, nil
case "cyan":
return FgCyan, nil
case "white":
return FgWhite, nil
case "default":
return FgDefault, nil
default:
return FgDefault, fmt.Errorf("unknown foreground text color '%s'", s)
}
}
// ToBgColor converts a given string (e.g. from a config file) into a background
// color code.
func ToBgColor(s string) (BgColor, error) {
switch strings.ToLower(s) {
case "black":
return BgBlack, nil
case "red":
return BgRed, nil
case "green":
return BgGreen, nil
case "yellow":
return BgYellow, nil
case "blue":
return BgBlue, nil
case "magenta":
return BgMagenta, nil
case "cyan":
return BgCyan, nil
case "white":
return BgWhite, nil
case "default":
return BgDefault, nil
default:
return BgDefault, fmt.Errorf("unknown background text color '%s'", s)
}
}
// ToAttribute converts a given string (e.g. from a config file) into a text attribute.
func ToAttribute(s string) (Attribute, error) {
switch strings.ToLower(s) {
case "bold":
return AttrBold, nil
case "dim":
return AttrDim, nil
case "italic":
return AttrItalic, nil
case "underline":
return AttrUnderline, nil
case "blink":
return AttrBlink, nil
case "slowblink":
return AttrSlowBlink, nil
case "rapidblink":
return AttrRapidBlink, nil
case "reverse":
return AttrReverse, nil
case "hidden":
return AttrHidden, nil
case "none":
fallthrough
case "":
return AttrNone, nil
default:
return AttrNone, fmt.Errorf("unknown text attribute '%s'", s)
}
}
|
