/
string.go
84 lines (73 loc) · 1.34 KB
/
string.go
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
package stringx
import (
"bytes"
"github.com/lazygophers/log"
"strings"
)
// Camel2Snake 驼峰转蛇形
func Camel2Snake(s string) string {
var b bytes.Buffer
for i, v := range s {
if v >= 'A' && v <= 'Z' {
if i > 0 {
b.WriteString("_")
}
b.WriteString(string(v + 32))
} else {
b.WriteString(string(v))
}
}
return b.String()
}
// Snake2Camel 蛇形转驼峰
func Snake2Camel(s string) string {
var b bytes.Buffer
upper := true
for _, v := range s {
if v == '_' {
upper = true
} else {
if upper {
b.WriteString(string(v - 32))
upper = false
} else {
b.WriteString(string(v))
}
}
}
return b.String()
}
// SplitLen 按长度分割字符串
func SplitLen(s string, max int) []string {
var lines []string
b := log.GetBuffer()
defer log.PutBuffer(b)
for _, r := range []rune(s) {
b.WriteRune(r)
if b.Len() >= max {
lines = append(lines, b.String())
b.Reset()
}
}
if b.Len() > 0 {
lines = append(lines, b.String())
}
return lines
}
// Shorten 缩短字符串
func Shorten(s string, max int) string {
if len(s) <= max {
return s
}
return s[:max]
}
func IsUpper[M string | rune](r M) bool {
return string(r) == strings.ToUpper(string(r))
}
func Reverse(s string) string {
var b bytes.Buffer
for i := len(s) - 1; i >= 0; i-- {
b.WriteString(string(s[i]))
}
return b.String()
}