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Copy pathstring.go
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87 lines (73 loc) · 1.48 KB
/
Copy pathstring.go
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87 lines (73 loc) · 1.48 KB
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package util
import (
"bytes"
"strings"
)
// 取字符串中间 如果未找到,原样返回。
func GetBetweenStr(str, start, end string) string {
n := strings.Index(str, start)
if n == -1 {
n = 0
}
str = string([]byte(str)[n:])
m := strings.Index(str, end)
if m == -1 {
m = len(str)
}
str = string([]byte(str)[:m])
return str
}
// 取字符串中间,如果未找到返回空字符串
func BetweenStr(str, start, end string) string {
n := strings.Index(str, start)
if n < 0 {
return ""
}
n += len(start)
m := strings.Index(str[n:], end)
if m < 0 {
return ""
}
return str[n : n+m]
}
// 取字符串左侧
func LeftStr(str, posStr string, isContainsPosStr bool) string {
n := strings.Index(str, posStr)
if n < 0 {
return ""
}
if isContainsPosStr {
n += len(posStr)
}
// m := strings.Index(str[n:], end)
// if m < 0 {
// return ""
// }
return str[:n]
}
// 取字符串右侧
func RightStr(str, posStr string, isContainsPosStr bool) string {
// 返回指定字符在此字符串中最后一次出现处的索引
n := strings.LastIndex(str, posStr)
if n < 0 {
return ""
}
if !isContainsPosStr {
n += len(posStr)
}
// m := strings.Index(str[n:], end)
// if m < 0 {
// return ""
// }
return str[n:]
}
//补全网址协议头
func UrlPatchHttp(url string) (ret string) {
if strings.Index(url, "http") < 0 && url != "" {
var buffer bytes.Buffer
buffer.WriteString("https:")
buffer.WriteString(url)
return buffer.String()
}
return url
}