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Diffstat (limited to 'libgo/go/strings/strings.go')
-rw-r--r--libgo/go/strings/strings.go16
1 files changed, 13 insertions, 3 deletions
diff --git a/libgo/go/strings/strings.go b/libgo/go/strings/strings.go
index b4d920714ac..53fdeadf97b 100644
--- a/libgo/go/strings/strings.go
+++ b/libgo/go/strings/strings.go
@@ -64,7 +64,17 @@ func Count(s, sep string) int {
// Contains returns true if substr is within s.
func Contains(s, substr string) bool {
- return Index(s, substr) != -1
+ return Index(s, substr) >= 0
+}
+
+// ContainsAny returns true if any Unicode code points in chars are within s.
+func ContainsAny(s, chars string) bool {
+ return IndexAny(s, chars) >= 0
+}
+
+// ContainsRune returns true if the Unicode code point r is within s.
+func ContainsRune(s string, r rune) bool {
+ return IndexRune(s, r) >= 0
}
// Index returns the index of the first instance of sep in s, or -1 if sep is not present in s.
@@ -269,7 +279,7 @@ func FieldsFunc(s string, f func(rune) bool) []string {
fieldStart = i
}
}
- if fieldStart != -1 { // Last field might end at EOF.
+ if fieldStart >= 0 { // Last field might end at EOF.
a[na] = s[fieldStart:]
}
return a
@@ -512,7 +522,7 @@ func lastIndexFunc(s string, f func(rune) bool, truth bool) int {
}
func makeCutsetFunc(cutset string) func(rune) bool {
- return func(r rune) bool { return IndexRune(cutset, r) != -1 }
+ return func(r rune) bool { return IndexRune(cutset, r) >= 0 }
}
// Trim returns a slice of the string s with all leading and