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
|
package userinput
import (
"errors"
"fmt"
"strings"
"github.com/ChausseBenjamin/termpicker/internal/colors"
)
var (
errUnknownColorFormat = errors.New("Unrecognized color format")
errHexParsing = errors.New("Failed to parse hex color")
errRGBParsing = errors.New("Failed to parse RGB color")
errHSLParsing = errors.New("Failed to parse HSL color")
errCMYKParsing = errors.New("Failed to parse CMYK color")
)
func sanitize(s string) string {
s = strings.ReplaceAll(s, "\"", "")
s = strings.ReplaceAll(s, "%", "")
s = strings.ReplaceAll(s, "°", "")
s = strings.TrimSpace(s)
s = strings.ToLower(s)
return s
}
func ParseColor(s string) (colors.ColorSpace, error) {
s = sanitize(s)
switch {
case strings.Contains(s, "#"):
return parseHex(s)
case strings.Contains(s, "rgb"):
return parseRGB(s)
case strings.Contains(s, "hsl"):
return parseHSL(s)
case strings.Contains(s, "cmyk"):
return parseCMYK(s)
default:
return nil, errUnknownColorFormat
}
}
func parseRGB(s string) (colors.ColorSpace, error) {
var r, g, b int
_, err := fmt.Sscanf(s, "rgb(%d,%d,%d)", &r, &g, &b)
if err != nil {
return nil, errors.Join(errRGBParsing, err)
}
return colors.RGB{R: r, G: g, B: b}, nil
}
func parseHex(s string) (colors.ColorSpace, error) {
var r, g, b int
_, err := fmt.Sscanf(s, "#%02x%02x%02x", &r, &g, &b)
if err != nil {
return nil, errors.Join(errHexParsing, err)
}
return colors.RGB{R: r, G: g, B: b}, nil
}
func parseCMYK(s string) (colors.ColorSpace, error) {
var c, m, y, k int
_, err := fmt.Sscanf(s, "cmyk(%d,%d,%d,%d)", &c, &m, &y, &k)
if err != nil {
return nil, errors.Join(errCMYKParsing, err)
}
return colors.CMYK{C: c, M: m, Y: y, K: k}, nil
}
func parseHSL(str string) (colors.ColorSpace, error) {
var h, s, l int
_, err := fmt.Sscanf(str, "hsl(%d,%d,%d)", &h, &s, &l)
if err != nil {
return nil, errors.Join(errHSLParsing, err)
}
return colors.HSL{H: h, S: s, L: l}, nil
}
|
