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Add substring funcs

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世界 2022-08-15 22:36:45 +08:00
parent 6b313ff9ef
commit 7868451c90
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1 changed files with 35 additions and 0 deletions
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35
common/string.go Normal file
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@ -0,0 +1,35 @@
package common
import "strings"
func SubstringAfter(s string, substr string) string {
index := strings.Index(s, substr)
if index == -1 {
return s
}
return s[index+len(substr):]
}
func SubstringAfterLast(s string, substr string) string {
index := strings.LastIndex(s, substr)
if index == -1 {
return s
}
return s[index+len(substr):]
}
func SubstringBefore(s string, substr string) string {
index := strings.Index(s, substr)
if index == -1 {
return s
}
return s[:index]
}
func SubstringBeforeLast(s string, substr string) string {
index := strings.LastIndex(s, substr)
if index == -1 {
return s
}
return s[:index]
}